3547 lines
106 KiB
C++
3547 lines
106 KiB
C++
/* fhandler.h
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This file is part of Cygwin.
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This software is a copyrighted work licensed under the terms of the
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Cygwin license. Please consult the file "CYGWIN_LICENSE" for
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details. */
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#pragma once
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#include "pinfo.h"
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#include "tty.h"
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#include "mqueue_types.h"
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#include <cygwin/_socketflags.h>
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#include <cygwin/_ucred.h>
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#include <sys/un.h>
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#include <sys/param.h>
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/* It appears that 64K is the block size used for buffered I/O on NT.
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Using this blocksize in read/write calls in the application results
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in a much better performance than using smaller values. */
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#define PREFERRED_IO_BLKSIZE ((blksize_t) 65536)
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/* It also appears that this may be the only acceptable block size for
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atomic writes to a pipe. It is a shame that we have to make this
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so small. http://cygwin.com/ml/cygwin/2011-03/msg00541.html */
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#define DEFAULT_PIPEBUFSIZE PREFERRED_IO_BLKSIZE
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/* Used for fhandler_pipe::create. Use an available flag which will
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never be used in Cygwin for this function. */
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#define PIPE_ADD_PID FILE_FLAG_FIRST_PIPE_INSTANCE
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#define O_TMPFILE_FILE_ATTRS (FILE_ATTRIBUTE_TEMPORARY | FILE_ATTRIBUTE_HIDDEN)
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/* Buffer size for ReadConsoleInput() and PeekConsoleInput(). */
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/* Per MSDN, max size of buffer required is below 64K. */
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/* (65536 / sizeof (INPUT_RECORD)) is 3276, however,
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ERROR_NOT_ENOUGH_MEMORY occurs in win7 if this value is used. */
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#define INREC_SIZE 2048
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/* Helper function to allow checking if some offset in a file is so far
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beyond EOF, that at least one sparse chunk fits into the span. */
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inline bool
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span_sparse_chunk (off_t new_pos, off_t old_eof)
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{
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return roundup2 (old_eof, FILE_SPARSE_GRANULARITY) + FILE_SPARSE_GRANULARITY
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<= rounddown (new_pos, FILE_SPARSE_GRANULARITY);
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}
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extern const char *windows_device_names[];
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extern struct __cygwin_perfile *perfile_table;
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#define __fmode (*(user_data->fmode_ptr))
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extern const char dev_disk[];
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extern const size_t dev_disk_len;
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extern const char proc[];
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extern const size_t proc_len;
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extern const char procsys[];
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extern const size_t procsys_len;
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class select_record;
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class select_stuff;
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class fhandler_disk_file;
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class inode_t;
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typedef struct __DIR DIR;
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struct dirent;
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struct iovec;
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struct acl;
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struct __acl_t;
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enum dirent_states
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{
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dirent_ok = 0x0000,
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dirent_saw_dot = 0x0001,
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dirent_saw_dot_dot = 0x0002,
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dirent_saw_eof = 0x0004,
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dirent_isroot = 0x0008,
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dirent_set_d_ino = 0x0010,
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dirent_get_d_ino = 0x0020,
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dirent_nfs_d_ino = 0x0040,
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/* Global flags which must not be deleted on rewinddir or seekdir. */
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dirent_info_mask = 0x0078
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};
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enum bind_state
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{
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unbound = 0,
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bind_pending = 1,
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bound = 2
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};
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enum conn_state
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{
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unconnected = 0,
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connect_pending = 1,
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connected = 2,
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listener = 3,
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connect_failed = 4 /* FIXME: Do we really need this? It's basically
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the same thing as unconnected. */
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};
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enum line_edit_status
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{
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line_edit_ok = 0,
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line_edit_input_done = 1,
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line_edit_signalled = 2,
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line_edit_error = 3,
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line_edit_pipe_full = 4
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};
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enum bg_check_types
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{
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bg_error = -1,
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bg_eof = 0,
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bg_ok = 1,
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bg_signalled = 2
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};
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enum query_state {
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no_query = 0,
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query_read_control = 1,
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query_read_attributes = 2,
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query_write_control = 3,
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query_write_dac = 4,
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query_write_attributes = 5
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};
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enum del_lock_called_from {
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on_close,
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after_fork,
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after_exec
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};
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enum virtual_ftype_t {
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virt_none = 0x0000, /* Invalid, Error */
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virt_file = 0x0001, /* Regular file */
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virt_symlink = 0x0002, /* Symlink */
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virt_pipe = 0x0003, /* Pipe */
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virt_socket = 0x0004, /* Socket */
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virt_chr = 0x0005, /* Character special */
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virt_blk = 0x0006, /* Block special */
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virt_fdsymlink = 0x0007, /* Fd symlink (e.g. /proc/<PID>/fd/0) */
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virt_fsfile = 0x0008, /* FS-based file via /proc/sys */
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virt_dir_type = 0x1000,
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virt_directory = 0x1001, /* Directory */
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virt_rootdir = 0x1002, /* Root directory of virtual FS */
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virt_fsdir = 0x1003, /* FS-based directory via /proc/sys */
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};
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static inline bool
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virt_ftype_isfile (virtual_ftype_t _f)
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{
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return _f != virt_none && !(_f & virt_dir_type);
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}
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static inline bool
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virt_ftype_isdir (virtual_ftype_t _f)
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{
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return _f & virt_dir_type;
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}
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class fhandler_base
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{
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friend class dtable;
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friend void close_all_files (bool);
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struct status_flags
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{
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unsigned rbinary : 1; /* binary read mode */
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unsigned rbinset : 1; /* binary read mode explicitly set */
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unsigned wbinary : 1; /* binary write mode */
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unsigned wbinset : 1; /* binary write mode explicitly set */
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unsigned nohandle : 1; /* No handle associated with fhandler. */
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unsigned did_lseek : 1; /* set when lseek is called as a flag that
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_write should check if we've moved
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beyond EOF, zero filling or making
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file sparse if so. */
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unsigned query_open : 3; /* open file without requesting either
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read or write access */
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unsigned close_on_exec : 1; /* close-on-exec */
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unsigned need_fork_fixup : 1; /* Set if need to fixup after fork. */
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unsigned isclosed : 1; /* Set when fhandler is closed. */
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unsigned mandatory_locking : 1; /* Windows mandatory locking */
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public:
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status_flags () :
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rbinary (0), rbinset (0), wbinary (0), wbinset (0), nohandle (0),
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did_lseek (0), query_open (no_query), close_on_exec (0),
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need_fork_fixup (0), isclosed (0), mandatory_locking (0)
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{}
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} status, open_status;
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private:
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ACCESS_MASK access;
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ULONG options;
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HANDLE io_handle;
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ino_t ino; /* file ID or hashed filename, depends on FS. */
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LONG _refcnt;
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public:
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struct rabuf_t
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{
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char *rabuf; /* used for crlf conversion in text files */
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size_t ralen;
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size_t raixget;
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size_t raixput;
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size_t rabuflen;
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};
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protected:
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/* File open flags from open () and fcntl () calls */
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int openflags;
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struct rabuf_t ra;
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/* Used for posix_getdents () */
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DIR *_getdents_dir;
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/* Used for advisory file locking. See flock.cc. */
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int64_t unique_id;
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void del_my_locks (del_lock_called_from);
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void set_ino (ino_t i) { ino = i; }
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HANDLE read_state;
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HANDLE select_sem;
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public:
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LONG inc_refcnt () {return InterlockedIncrement (&_refcnt);}
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LONG dec_refcnt () {return InterlockedDecrement (&_refcnt);}
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class fhandler_base *archetype;
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int usecount;
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path_conv pc;
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virtual bool use_archetype () const {return false;}
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virtual void set_name (path_conv &pc);
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virtual void set_name (const char *s)
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{
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pc.set_posix (s);
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pc.set_path (s);
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}
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int error () const {return pc.error;}
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void set_error (int error) {pc.error = error;}
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bool exists () const {return pc.exists ();}
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int pc_binmode () const {return pc.binmode ();}
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device& dev () {return pc.dev;}
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operator DWORD& () {return (DWORD&) pc;}
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fhandler_base ();
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virtual ~fhandler_base ();
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/* Non-virtual simple accessor functions. */
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void set_handle (HANDLE x) { io_handle = x; }
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dev_t& get_device () { return dev (); }
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_major_t get_major () { return dev ().get_major (); }
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_minor_t get_minor () { return dev ().get_minor (); }
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ACCESS_MASK get_access () const { return access; }
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void set_access (ACCESS_MASK x) { access = x; }
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ULONG get_options () const { return options; }
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void set_options (ULONG x) { options = x; }
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int get_flags () { return openflags; }
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void set_flags (int x, int supplied_bin = 0);
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bool is_nonblocking ();
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void set_nonblocking (int);
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bool wbinary () const { return status.wbinset ? status.wbinary : 1; }
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bool rbinary () const { return status.rbinset ? status.rbinary : 1; }
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void wbinary (bool b) {status.wbinary = b; status.wbinset = 1;}
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void rbinary (bool b) {status.rbinary = b; status.rbinset = 1;}
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void set_open_status () {open_status = status;}
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void reset_to_open_binmode ()
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{
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set_flags ((get_flags () & ~(O_TEXT | O_BINARY))
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| (((open_status.wbinset ? open_status.wbinary : 1)
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|| (open_status.rbinset ? open_status.rbinary : 1))
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? O_BINARY : O_TEXT));
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}
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IMPLEMENT_STATUS_FLAG (bool, wbinset)
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IMPLEMENT_STATUS_FLAG (bool, rbinset)
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IMPLEMENT_STATUS_FLAG (bool, nohandle)
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IMPLEMENT_STATUS_FLAG (bool, did_lseek)
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IMPLEMENT_STATUS_FLAG (query_state, query_open)
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IMPLEMENT_STATUS_FLAG (bool, close_on_exec)
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IMPLEMENT_STATUS_FLAG (bool, need_fork_fixup)
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IMPLEMENT_STATUS_FLAG (bool, isclosed)
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IMPLEMENT_STATUS_FLAG (bool, mandatory_locking)
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int get_default_fmode (int flags);
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virtual void set_close_on_exec (bool val);
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LPSECURITY_ATTRIBUTES get_inheritance (bool all = 0)
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{
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if (all)
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return close_on_exec () ? &sec_all_nih : &sec_all;
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else
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return close_on_exec () ? &sec_none_nih : &sec_none;
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}
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virtual int fixup_before_fork_exec (DWORD) { return 0; }
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virtual void fixup_after_fork (HANDLE);
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virtual void fixup_after_exec ();
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void create_read_state (LONG n)
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{
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read_state = CreateSemaphore (&sec_none_nih, 0, n, NULL);
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ProtectHandle (read_state);
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}
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void signal_read_state (LONG n)
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{
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ReleaseSemaphore (read_state, n, NULL);
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}
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virtual char *&rabuf () { return ra.rabuf; };
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virtual size_t &ralen () { return ra.ralen; };
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virtual size_t &raixget () { return ra.raixget; };
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virtual size_t &raixput () { return ra.raixput; };
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virtual size_t &rabuflen () { return ra.rabuflen; };
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bool get_readahead_valid () { return raixget () < ralen (); }
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int puts_readahead (const char *s, size_t len = (size_t) -1);
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int put_readahead (char value);
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int get_readahead ();
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int peek_readahead (int queryput = 0);
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void set_readahead_valid (int val, int ch = -1);
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int get_readahead_into_buffer (char *buf, size_t buflen);
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bool has_acls () const { return pc.has_acls (); }
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bool isremote () { return pc.isremote (); }
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bool has_attribute (DWORD x) const {return pc.has_attribute (x);}
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const char *get_name () const { return pc.get_posix (); }
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const char *get_win32_name () { return pc.get_win32 (); }
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virtual dev_t get_dev () { return get_device (); }
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/* Use get_plain_ino if the caller needs to avoid hashing if ino is 0. */
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ino_t get_plain_ino () { return ino; }
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ino_t get_ino () { return ino ?: ino = hash_path_name (0, pc.get_nt_native_path ()); }
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int64_t get_unique_id () const { return unique_id; }
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/* Returns name used for /proc/<pid>/fd in buf. */
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virtual char *get_proc_fd_name (char *buf);
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virtual void set_no_inheritance (HANDLE &, bool);
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/* fixup fd possibly non-inherited handles after fork */
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bool fork_fixup (HANDLE, HANDLE &, const char *);
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virtual bool need_fixup_before () const {return false;}
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int open_with_arch (int, mode_t = 0);
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int open_null (int flags);
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virtual int open (int, mode_t);
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virtual fhandler_base *fd_reopen (int, mode_t);
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virtual bool open_setup (int flags);
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virtual void post_open_setup (int fd) {}
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void set_unique_id (int64_t u) { unique_id = u; }
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void set_unique_id () { NtAllocateLocallyUniqueId ((PLUID) &unique_id); }
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int close_with_arch ();
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virtual int close ();
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virtual void cleanup ();
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int _archetype_usecount (const char *fn, int ln, int n)
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{
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if (!archetype)
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return 0;
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archetype->usecount += n;
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if (strace.active ())
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strace.prntf (_STRACE_ALL, fn, "line %d: %s<%p> usecount + %d = %d", ln, get_name (), archetype, n, archetype->usecount);
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return archetype->usecount;
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}
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int open_fs (int, mode_t = 0);
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# define archetype_usecount(n) _archetype_usecount (__PRETTY_FUNCTION__, __LINE__, (n))
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int close_fs () { return fhandler_base::close (); }
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virtual int fstat (struct stat *buf);
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void stat_fixup (struct stat *buf);
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int fstat_fs (struct stat *buf);
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private:
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int fstat_helper (struct stat *buf);
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int fstat_by_nfs_ea (struct stat *buf);
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int fstat_by_handle (struct stat *buf);
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int fstat_by_name (struct stat *buf);
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public:
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virtual int fstatvfs (struct statvfs *buf);
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int fstatvfs_by_handle (HANDLE h, struct statvfs *buf);
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int utimens_fs (const struct timespec *);
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virtual int fchmod (mode_t mode);
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virtual int fchown (uid_t uid, gid_t gid);
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virtual int facl (int, int, struct acl *);
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virtual struct __acl_t *acl_get (uint32_t);
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virtual int acl_set (struct __acl_t *, uint32_t);
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virtual ssize_t fgetxattr (const char *, void *, size_t);
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virtual int fsetxattr (const char *, const void *, size_t, int);
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virtual int fadvise (off_t, off_t, int);
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virtual int fallocate (int, off_t, off_t);
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virtual int link (const char *);
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virtual int utimens (const struct timespec *);
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virtual int fsync ();
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virtual int ioctl (unsigned int cmd, void *);
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virtual int fcntl (int cmd, intptr_t);
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virtual char const *ttyname () { return get_name (); }
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virtual void read (void *ptr, size_t& len);
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virtual ssize_t write (const void *ptr, size_t len);
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virtual ssize_t readv (const struct iovec *, int iovcnt, ssize_t tot = -1);
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virtual ssize_t writev (const struct iovec *, int iovcnt, ssize_t tot = -1);
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virtual ssize_t pread (void *, size_t, off_t, void *aio = NULL);
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virtual ssize_t pwrite (void *, size_t, off_t, void *aio = NULL);
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virtual off_t lseek (off_t offset, int whence);
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virtual int lock (int, struct flock *);
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virtual int mand_lock (int, struct flock *);
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virtual int dup (fhandler_base *child, int flags);
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virtual int fpathconf (int);
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/* Get a handle to the named pipe file system directory. Used by
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fhandler_pipe, fhandler_fifo, and fhandler_socket_unix. */
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static NTSTATUS npfs_handle (HANDLE &);
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virtual HANDLE mmap (caddr_t *addr, size_t len, int prot,
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int flags, off_t off);
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virtual int munmap (HANDLE h, caddr_t addr, size_t len);
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virtual int msync (HANDLE h, caddr_t addr, size_t len, int flags);
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virtual bool fixup_mmap_after_fork (HANDLE h, int prot, int flags,
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off_t offset, SIZE_T size,
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void *address);
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void *operator new (size_t, void *p) __attribute__ ((nothrow)) {return p;}
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virtual int init (HANDLE, DWORD, mode_t);
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virtual int tcflush (int);
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virtual int tcsendbreak (int);
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virtual int tcdrain ();
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virtual int tcflow (int);
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virtual int tcsetattr (int a, const struct termios *t);
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virtual int tcgetattr (struct termios *t);
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virtual int tcsetpgrp (const pid_t pid);
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virtual int tcgetpgrp ();
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virtual pid_t tcgetsid ();
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virtual bool is_tty () const { return false; }
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virtual bool ispipe () const { return false; }
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virtual pid_t get_popen_pid () const {return 0;}
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virtual bool isfifo () const { return false; }
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virtual int ptsname_r (char *, size_t);
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virtual class fhandler_socket *is_socket () { return NULL; }
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virtual class fhandler_socket_wsock *is_wsock_socket () { return NULL; }
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virtual class fhandler_console *is_console () { return 0; }
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virtual class fhandler_signalfd *is_signalfd () { return NULL; }
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virtual class fhandler_timerfd *is_timerfd () { return NULL; }
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virtual class fhandler_mqueue *is_mqueue () { return NULL; }
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virtual int is_windows () {return 0; }
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virtual void raw_read (void *ptr, size_t& ulen);
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virtual ssize_t raw_write (const void *ptr, size_t ulen);
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/* Virtual accessor functions to hide the fact
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that some fd's have two handles. */
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virtual HANDLE& get_handle () { return io_handle; }
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virtual HANDLE& get_handle_nat () { return io_handle; }
|
|
virtual HANDLE& get_output_handle () { return io_handle; }
|
|
virtual HANDLE& get_output_handle_nat () { return io_handle; }
|
|
virtual HANDLE get_stat_handle () { return pc.handle () ?: io_handle; }
|
|
virtual HANDLE get_echo_handle () const { return NULL; }
|
|
virtual bool hit_eof () {return false;}
|
|
virtual select_record *select_read (select_stuff *);
|
|
virtual select_record *select_write (select_stuff *);
|
|
virtual select_record *select_except (select_stuff *);
|
|
virtual const char *get_native_name ()
|
|
{
|
|
return dev ().native ();
|
|
}
|
|
virtual bg_check_types bg_check (int, bool = false) {return bg_ok;}
|
|
virtual void clear_readahead ()
|
|
{
|
|
raixput () = raixget () = ralen () = rabuflen () = 0;
|
|
rabuf () = NULL;
|
|
}
|
|
void operator delete (void *p) {cfree (p);}
|
|
virtual void set_eof () {}
|
|
virtual int mkdir (mode_t mode);
|
|
virtual int rmdir ();
|
|
virtual DIR *opendir (int fd);
|
|
virtual int readdir (DIR *, dirent *);
|
|
virtual long telldir (DIR *);
|
|
virtual void seekdir (DIR *, long);
|
|
virtual void rewinddir (DIR *);
|
|
virtual int closedir (DIR *);
|
|
bool is_fs_special () {return pc.is_fs_special ();}
|
|
bool issymlink () {return pc.issymlink ();}
|
|
bool device_access_denied (int);
|
|
int fhaccess (int flags, bool);
|
|
|
|
fhandler_base (void *) {}
|
|
|
|
protected:
|
|
void _copy_from_reset_helper ()
|
|
{
|
|
ra.rabuf = NULL;
|
|
ra.ralen = 0;
|
|
ra.raixget = 0;
|
|
ra.raixput = 0;
|
|
ra.rabuflen = 0;
|
|
_refcnt = 0;
|
|
}
|
|
|
|
public:
|
|
virtual void copy_from (fhandler_base *x)
|
|
{
|
|
pc.free_strings ();
|
|
*this = *reinterpret_cast<fhandler_base *> (x);
|
|
_copy_from_reset_helper ();
|
|
}
|
|
|
|
virtual fhandler_base *clone (cygheap_types malloc_type = HEAP_FHANDLER)
|
|
{
|
|
void *ptr = (void *) ccalloc (malloc_type, 1, sizeof (fhandler_base));
|
|
fhandler_base *fh = new (ptr) fhandler_base (ptr);
|
|
fh->copy_from (this);
|
|
return fh;
|
|
}
|
|
|
|
HANDLE get_select_sem () { return select_sem; }
|
|
|
|
DIR *getdents_dir () const { return _getdents_dir; }
|
|
DIR *getdents_dir (DIR *_nd) { return _getdents_dir = _nd; }
|
|
void clear_getdents ()
|
|
{
|
|
if (getdents_dir ())
|
|
{
|
|
fdclosedir (getdents_dir ());
|
|
getdents_dir (NULL);
|
|
}
|
|
}
|
|
};
|
|
|
|
struct wsa_event
|
|
{
|
|
LONG serial_number;
|
|
long events;
|
|
int connect_errorcode;
|
|
pid_t owner;
|
|
};
|
|
|
|
class fhandler_socket: public fhandler_base
|
|
{
|
|
private:
|
|
/* permission fake following Linux rules */
|
|
uid_t uid;
|
|
uid_t gid;
|
|
mode_t mode;
|
|
|
|
protected:
|
|
int addr_family;
|
|
int type;
|
|
inline int get_socket_flags ()
|
|
{
|
|
int ret = 0;
|
|
if (is_nonblocking ())
|
|
ret |= SOCK_NONBLOCK;
|
|
if (close_on_exec ())
|
|
ret |= SOCK_CLOEXEC;
|
|
return ret;
|
|
}
|
|
|
|
protected:
|
|
int _rmem;
|
|
int _wmem;
|
|
public:
|
|
int &rmem () { return _rmem; }
|
|
int &wmem () { return _wmem; }
|
|
void rmem (int nrmem) { _rmem = nrmem; }
|
|
void wmem (int nwmem) { _wmem = nwmem; }
|
|
|
|
protected:
|
|
DWORD _rcvtimeo; /* msecs */
|
|
DWORD _sndtimeo; /* msecs */
|
|
public:
|
|
DWORD &rcvtimeo () { return _rcvtimeo; }
|
|
DWORD &sndtimeo () { return _sndtimeo; }
|
|
|
|
public:
|
|
fhandler_socket ();
|
|
~fhandler_socket ();
|
|
fhandler_socket *is_socket () { return this; }
|
|
|
|
char *get_proc_fd_name (char *buf);
|
|
|
|
virtual int socket (int af, int type, int protocol, int flags) = 0;
|
|
virtual int socketpair (int af, int type, int protocol, int flags,
|
|
fhandler_socket *fh_out) = 0;
|
|
virtual int bind (const struct sockaddr *name, int namelen) = 0;
|
|
virtual int listen (int backlog) = 0;
|
|
virtual int accept4 (struct sockaddr *peer, int *len, int flags) = 0;
|
|
virtual int connect (const struct sockaddr *name, int namelen) = 0;
|
|
virtual int getsockname (struct sockaddr *name, int *namelen) = 0;
|
|
virtual int getpeername (struct sockaddr *name, int *namelen) = 0;
|
|
virtual int shutdown (int how) = 0;
|
|
virtual int close () = 0;
|
|
virtual int getpeereid (pid_t *pid, uid_t *euid, gid_t *egid);
|
|
virtual ssize_t recvfrom (void *ptr, size_t len, int flags,
|
|
struct sockaddr *from, int *fromlen) = 0;
|
|
virtual ssize_t recvmsg (struct msghdr *msg, int flags) = 0;
|
|
virtual void read (void *ptr, size_t& len) = 0;
|
|
virtual ssize_t readv (const struct iovec *, int iovcnt,
|
|
ssize_t tot = -1) = 0;
|
|
|
|
virtual ssize_t sendto (const void *ptr, size_t len, int flags,
|
|
const struct sockaddr *to, int tolen) = 0;
|
|
virtual ssize_t sendmsg (const struct msghdr *msg, int flags) = 0;
|
|
virtual ssize_t write (const void *ptr, size_t len) = 0;
|
|
virtual ssize_t writev (const struct iovec *, int iovcnt, ssize_t tot = -1) = 0;
|
|
virtual int setsockopt (int level, int optname, const void *optval,
|
|
__socklen_t optlen) = 0;
|
|
virtual int getsockopt (int level, int optname, const void *optval,
|
|
__socklen_t *optlen) = 0;
|
|
|
|
virtual int ioctl (unsigned int cmd, void *);
|
|
virtual int fcntl (int cmd, intptr_t);
|
|
|
|
int open (int flags, mode_t mode = 0);
|
|
int fstat (struct stat *buf);
|
|
int fstatvfs (struct statvfs *buf);
|
|
int fchmod (mode_t newmode);
|
|
int fchown (uid_t newuid, gid_t newgid);
|
|
int facl (int, int, struct acl *);
|
|
int link (const char *);
|
|
off_t lseek (off_t, int)
|
|
{
|
|
set_errno (ESPIPE);
|
|
return -1;
|
|
}
|
|
|
|
void set_addr_family (int af) {addr_family = af;}
|
|
int get_addr_family () {return addr_family;}
|
|
virtual void set_socket_type (int st) { type = st;}
|
|
virtual int get_socket_type () {return type;}
|
|
|
|
/* select.cc */
|
|
virtual select_record *select_read (select_stuff *) = 0;
|
|
virtual select_record *select_write (select_stuff *) = 0;
|
|
virtual select_record *select_except (select_stuff *) = 0;
|
|
};
|
|
|
|
/* Encapsulate wsock-based socket classes fhandler_socket_inet and
|
|
fhandler_socket_local during development of fhandler_socket_unix.
|
|
TODO: Perhaps we should keep it that way, under the assumption that
|
|
the Windows 10 AF_UNIX class will eventually get useful at one point. */
|
|
class fhandler_socket_wsock: public fhandler_socket
|
|
{
|
|
protected:
|
|
virtual int af_local_connect () = 0;
|
|
|
|
protected:
|
|
wsa_event *wsock_events;
|
|
HANDLE wsock_mtx;
|
|
HANDLE wsock_evt;
|
|
bool init_events ();
|
|
int wait_for_events (const long event_mask, const DWORD flags);
|
|
void release_events ();
|
|
public:
|
|
const HANDLE wsock_event () const { return wsock_evt; }
|
|
int evaluate_events (const long event_mask, long &events, const bool erase);
|
|
const LONG serial_number () const { return wsock_events->serial_number; }
|
|
|
|
protected:
|
|
struct status_flags
|
|
{
|
|
unsigned async_io : 1; /* async I/O */
|
|
unsigned saw_shutdown_read : 1; /* Socket saw a SHUT_RD */
|
|
unsigned saw_shutdown_write : 1; /* Socket saw a SHUT_WR */
|
|
unsigned saw_reuseaddr : 1; /* Socket saw SO_REUSEADDR call */
|
|
unsigned connect_state : 3;
|
|
public:
|
|
status_flags () :
|
|
async_io (0), saw_shutdown_read (0), saw_shutdown_write (0),
|
|
saw_reuseaddr (0), connect_state (unconnected)
|
|
{}
|
|
} status;
|
|
public:
|
|
IMPLEMENT_STATUS_FLAG (bool, async_io)
|
|
IMPLEMENT_STATUS_FLAG (bool, saw_shutdown_read)
|
|
IMPLEMENT_STATUS_FLAG (bool, saw_shutdown_write)
|
|
IMPLEMENT_STATUS_FLAG (bool, saw_reuseaddr)
|
|
IMPLEMENT_STATUS_FLAG (conn_state, connect_state)
|
|
|
|
protected:
|
|
struct _WSAPROTOCOL_INFOW *prot_info_ptr;
|
|
public:
|
|
bool need_fixup_before () const {return prot_info_ptr != NULL;}
|
|
void set_close_on_exec (bool val);
|
|
void init_fixup_before ();
|
|
int fixup_before_fork_exec (DWORD);
|
|
void fixup_after_fork (HANDLE);
|
|
void fixup_after_exec ();
|
|
int dup (fhandler_base *child, int);
|
|
|
|
#ifdef __INSIDE_CYGWIN_NET__
|
|
protected:
|
|
int set_socket_handle (SOCKET sock, int af, int type, int flags);
|
|
public:
|
|
/* Originally get_socket returned an int, which is not a good idea
|
|
to cast a handle to on 64 bit. The right type here is very certainly
|
|
SOCKET instead. On the other hand, we don't want to have to include
|
|
winsock.h just to build fhandler.h. Therefore we define get_socket
|
|
now only when building network related code. */
|
|
SOCKET get_socket () { return (SOCKET) get_handle(); }
|
|
#endif
|
|
|
|
protected:
|
|
virtual ssize_t recv_internal (struct _WSAMSG *wsamsg, bool use_recvmsg) = 0;
|
|
ssize_t send_internal (struct _WSAMSG *wsamsg, int flags);
|
|
|
|
public:
|
|
fhandler_socket_wsock ();
|
|
~fhandler_socket_wsock ();
|
|
|
|
fhandler_socket_wsock *is_wsock_socket () { return this; }
|
|
|
|
ssize_t recvfrom (void *ptr, size_t len, int flags,
|
|
struct sockaddr *from, int *fromlen);
|
|
ssize_t recvmsg (struct msghdr *msg, int flags);
|
|
void read (void *ptr, size_t& len);
|
|
ssize_t readv (const struct iovec *, int iovcnt, ssize_t tot = -1);
|
|
ssize_t write (const void *ptr, size_t len);
|
|
ssize_t writev (const struct iovec *, int iovcnt, ssize_t tot = -1);
|
|
int shutdown (int how);
|
|
int close ();
|
|
|
|
int ioctl (unsigned int cmd, void *);
|
|
int fcntl (int cmd, intptr_t);
|
|
|
|
/* select.cc */
|
|
select_record *select_read (select_stuff *);
|
|
select_record *select_write (select_stuff *);
|
|
select_record *select_except (select_stuff *);
|
|
};
|
|
|
|
class fhandler_socket_inet: public fhandler_socket_wsock
|
|
{
|
|
private:
|
|
bool oobinline; /* True if option SO_OOBINLINE is set */
|
|
bool tcp_quickack; /* True if quickack is enabled */
|
|
bool tcp_fastopen; /* True if TCP_FASTOPEN is set on older systems */
|
|
int tcp_keepidle; /* TCP_KEEPIDLE value in secs on older systems */
|
|
int tcp_keepcnt; /* TCP_KEEPCNT value on older systems */
|
|
int tcp_keepintvl; /* TCP_KEEPINTVL value in secs on older systems */
|
|
|
|
int set_keepalive (int keepidle, int keepcnt, int keepintvl);
|
|
protected:
|
|
int af_local_connect () { return 0; }
|
|
|
|
protected:
|
|
ssize_t recv_internal (struct _WSAMSG *wsamsg, bool use_recvmsg);
|
|
|
|
public:
|
|
fhandler_socket_inet ();
|
|
~fhandler_socket_inet ();
|
|
|
|
int socket (int af, int type, int protocol, int flags);
|
|
int socketpair (int af, int type, int protocol, int flags,
|
|
fhandler_socket *fh_out);
|
|
int bind (const struct sockaddr *name, int namelen);
|
|
int listen (int backlog);
|
|
int accept4 (struct sockaddr *peer, int *len, int flags);
|
|
int connect (const struct sockaddr *name, int namelen);
|
|
int getsockname (struct sockaddr *name, int *namelen);
|
|
int getpeername (struct sockaddr *name, int *namelen);
|
|
ssize_t sendto (const void *ptr, size_t len, int flags,
|
|
const struct sockaddr *to, int tolen);
|
|
ssize_t sendmsg (const struct msghdr *msg, int flags);
|
|
int setsockopt (int level, int optname, const void *optval,
|
|
__socklen_t optlen);
|
|
int getsockopt (int level, int optname, const void *optval,
|
|
__socklen_t *optlen);
|
|
|
|
/* from here on: CLONING */
|
|
fhandler_socket_inet (void *) {}
|
|
|
|
void copy_from (fhandler_base *x)
|
|
{
|
|
pc.free_strings ();
|
|
*this = *reinterpret_cast<fhandler_socket_inet *> (x);
|
|
_copy_from_reset_helper ();
|
|
}
|
|
|
|
fhandler_socket_inet *clone (cygheap_types malloc_type = HEAP_FHANDLER)
|
|
{
|
|
void *ptr = (void *) ccalloc (malloc_type, 1, sizeof (fhandler_socket_inet));
|
|
fhandler_socket_inet *fh = new (ptr) fhandler_socket_inet (ptr);
|
|
fh->copy_from (this);
|
|
return fh;
|
|
}
|
|
};
|
|
|
|
class fhandler_socket_local: public fhandler_socket_wsock
|
|
{
|
|
protected:
|
|
char *sun_path;
|
|
char *peer_sun_path;
|
|
void set_sun_path (const char *path);
|
|
char *get_sun_path () {return sun_path;}
|
|
void set_peer_sun_path (const char *path);
|
|
char *get_peer_sun_path () {return peer_sun_path;}
|
|
|
|
protected:
|
|
int connect_secret[4];
|
|
pid_t sec_pid;
|
|
uid_t sec_uid;
|
|
gid_t sec_gid;
|
|
pid_t sec_peer_pid;
|
|
uid_t sec_peer_uid;
|
|
gid_t sec_peer_gid;
|
|
void af_local_set_secret (char *);
|
|
void af_local_setblocking (bool &, bool &);
|
|
void af_local_unsetblocking (bool, bool);
|
|
void af_local_set_cred ();
|
|
void af_local_copy (fhandler_socket_local *);
|
|
bool af_local_recv_secret ();
|
|
bool af_local_send_secret ();
|
|
bool af_local_recv_cred ();
|
|
bool af_local_send_cred ();
|
|
int af_local_accept ();
|
|
int af_local_connect ();
|
|
int af_local_set_no_getpeereid ();
|
|
void af_local_set_sockpair_cred ();
|
|
|
|
protected:
|
|
ssize_t recv_internal (struct _WSAMSG *wsamsg, bool use_recvmsg);
|
|
|
|
protected:
|
|
struct status_flags
|
|
{
|
|
unsigned no_getpeereid : 1;
|
|
public:
|
|
status_flags () : no_getpeereid (0) {}
|
|
} status;
|
|
public:
|
|
IMPLEMENT_STATUS_FLAG (bool, no_getpeereid)
|
|
|
|
public:
|
|
fhandler_socket_local ();
|
|
~fhandler_socket_local ();
|
|
|
|
int dup (fhandler_base *child, int);
|
|
|
|
int socket (int af, int type, int protocol, int flags);
|
|
int socketpair (int af, int type, int protocol, int flags,
|
|
fhandler_socket *fh_out);
|
|
int bind (const struct sockaddr *name, int namelen);
|
|
int listen (int backlog);
|
|
int accept4 (struct sockaddr *peer, int *len, int flags);
|
|
int connect (const struct sockaddr *name, int namelen);
|
|
int getsockname (struct sockaddr *name, int *namelen);
|
|
int getpeername (struct sockaddr *name, int *namelen);
|
|
int getpeereid (pid_t *pid, uid_t *euid, gid_t *egid);
|
|
ssize_t sendto (const void *ptr, size_t len, int flags,
|
|
const struct sockaddr *to, int tolen);
|
|
ssize_t sendmsg (const struct msghdr *msg, int flags);
|
|
int setsockopt (int level, int optname, const void *optval,
|
|
__socklen_t optlen);
|
|
int getsockopt (int level, int optname, const void *optval,
|
|
__socklen_t *optlen);
|
|
|
|
int open (int flags, mode_t mode = 0);
|
|
int close ();
|
|
int fcntl (int cmd, intptr_t);
|
|
int fstat (struct stat *buf);
|
|
int fstatvfs (struct statvfs *buf);
|
|
int fchmod (mode_t newmode);
|
|
int fchown (uid_t newuid, gid_t newgid);
|
|
int facl (int, int, struct acl *);
|
|
struct __acl_t *acl_get (uint32_t);
|
|
int acl_set (struct __acl_t *, uint32_t);
|
|
int link (const char *);
|
|
|
|
/* from here on: CLONING */
|
|
fhandler_socket_local (void *) {}
|
|
|
|
void copy_from (fhandler_base *x)
|
|
{
|
|
pc.free_strings ();
|
|
*this = *reinterpret_cast<fhandler_socket_local *> (x);
|
|
_copy_from_reset_helper ();
|
|
}
|
|
|
|
fhandler_socket_local *clone (cygheap_types malloc_type = HEAP_FHANDLER)
|
|
{
|
|
void *ptr = (void *) ccalloc (malloc_type, 1, sizeof (fhandler_socket_local));
|
|
fhandler_socket_local *fh = new (ptr) fhandler_socket_local (ptr);
|
|
fh->copy_from (this);
|
|
return fh;
|
|
}
|
|
};
|
|
|
|
/* Sharable spinlock with low CPU profile. These locks are NOT recursive! */
|
|
class af_unix_spinlock_t
|
|
{
|
|
LONG locked; /* 0 or 1 */
|
|
|
|
public:
|
|
af_unix_spinlock_t () : locked (0) {}
|
|
void lock ()
|
|
{
|
|
LONG ret = InterlockedExchange (&locked, 1);
|
|
if (ret)
|
|
{
|
|
/* This loop counts the ms Sleep up from 0 to 45 in loop, 15ms steps,
|
|
with 256 iterations each, . */
|
|
for (uint16_t i = 0; ret; i += 64)
|
|
{
|
|
Sleep (15 * (i >> 14));
|
|
ret = InterlockedExchange (&locked, 1);
|
|
}
|
|
}
|
|
}
|
|
void unlock ()
|
|
{
|
|
InterlockedExchange (&locked, 0);
|
|
}
|
|
};
|
|
|
|
/* Internal representation of shutdown states */
|
|
enum shut_state {
|
|
_SHUT_NONE = 0,
|
|
_SHUT_RECV = 1,
|
|
_SHUT_SEND = 2,
|
|
_SHUT_MASK = 3
|
|
};
|
|
|
|
class sun_name_t
|
|
{
|
|
public:
|
|
__socklen_t un_len;
|
|
union
|
|
{
|
|
struct sockaddr_un un;
|
|
/* Allows 108 bytes sun_path plus trailing NUL */
|
|
char _nul[sizeof (struct sockaddr_un) + 1];
|
|
};
|
|
sun_name_t () { set (NULL, 0); }
|
|
sun_name_t (const struct sockaddr *name, __socklen_t namelen)
|
|
{ set ((const struct sockaddr_un *) name, namelen); }
|
|
void set (const struct sockaddr_un *name, __socklen_t namelen);
|
|
};
|
|
|
|
/* For each AF_UNIX socket, we need to maintain socket-wide data,
|
|
regardless of the number of descriptors. The shmem region gets created
|
|
in socket, socketpair or accept4 and reopened by dup, fork or exec. */
|
|
class af_unix_shmem_t
|
|
{
|
|
/* Don't use SRWLOCKs here. They are not sharable. If you must lock
|
|
multiple locks at the same time, always lock in the order bind ->
|
|
conn -> state -> io and unlock io -> state -> conn -> bind to avoid
|
|
deadlocks. */
|
|
af_unix_spinlock_t _bind_lock;
|
|
af_unix_spinlock_t _conn_lock;
|
|
af_unix_spinlock_t _state_lock;
|
|
af_unix_spinlock_t _io_lock;
|
|
LONG _connection_state; /* conn_state */
|
|
LONG _binding_state; /* bind_state */
|
|
LONG _shutdown; /* shut_state */
|
|
LONG _so_error; /* SO_ERROR */
|
|
LONG _so_passcred; /* SO_PASSCRED */
|
|
LONG _reuseaddr; /* dummy */
|
|
int _type; /* socket type */
|
|
sun_name_t _sun_path;
|
|
sun_name_t _peer_sun_path;
|
|
struct ucred _sock_cred; /* filled at listen time */
|
|
struct ucred _peer_cred; /* filled at connect time */
|
|
|
|
public:
|
|
void bind_lock () { _bind_lock.lock (); }
|
|
void bind_unlock () { _bind_lock.unlock (); }
|
|
void conn_lock () { _conn_lock.lock (); }
|
|
void conn_unlock () { _conn_lock.unlock (); }
|
|
void state_lock () { _state_lock.lock (); }
|
|
void state_unlock () { _state_lock.unlock (); }
|
|
void io_lock () { _io_lock.lock (); }
|
|
void io_unlock () { _io_lock.unlock (); }
|
|
|
|
conn_state connect_state (conn_state val)
|
|
{ return (conn_state) InterlockedExchange (&_connection_state, val); }
|
|
conn_state connect_state () const { return (conn_state) _connection_state; }
|
|
|
|
bind_state binding_state (bind_state val)
|
|
{ return (bind_state) InterlockedExchange (&_binding_state, val); }
|
|
bind_state binding_state () const { return (bind_state) _binding_state; }
|
|
|
|
int shutdown (int shut)
|
|
{ return (int) InterlockedExchange (&_shutdown, shut); }
|
|
int shutdown () const { return (int) _shutdown; }
|
|
|
|
int so_error (int err) { return (int) InterlockedExchange (&_so_error, err); }
|
|
int so_error () const { return _so_error; }
|
|
|
|
bool so_passcred (bool pc)
|
|
{ return (bool) InterlockedExchange (&_so_passcred, pc); }
|
|
bool so_passcred () const { return _so_passcred; }
|
|
|
|
int reuseaddr (int val)
|
|
{ return (int) InterlockedExchange (&_reuseaddr, val); }
|
|
int reuseaddr () const { return _reuseaddr; }
|
|
|
|
void set_socket_type (int val) { _type = val; }
|
|
int get_socket_type () const { return _type; }
|
|
|
|
void sun_path (struct sockaddr_un *un, __socklen_t unlen)
|
|
{ _sun_path.set (un, unlen); }
|
|
void peer_sun_path (struct sockaddr_un *un, __socklen_t unlen)
|
|
{ _peer_sun_path.set (un, unlen); }
|
|
sun_name_t *sun_path () {return &_sun_path;}
|
|
sun_name_t *peer_sun_path () {return &_peer_sun_path;}
|
|
|
|
void sock_cred (struct ucred *uc) { _sock_cred = *uc; }
|
|
struct ucred *sock_cred () { return &_sock_cred; }
|
|
void peer_cred (struct ucred *uc) { _peer_cred = *uc; }
|
|
struct ucred *peer_cred () { return &_peer_cred; }
|
|
};
|
|
|
|
#ifdef __WITH_AF_UNIX
|
|
|
|
class fhandler_socket_unix : public fhandler_socket
|
|
{
|
|
protected:
|
|
HANDLE shmem_handle; /* Shared memory region used to share
|
|
socket-wide state. */
|
|
af_unix_shmem_t *shmem;
|
|
HANDLE backing_file_handle; /* Either NT symlink or INVALID_HANDLE_VALUE,
|
|
if the socket is backed by a file in the
|
|
file system (actually a reparse point) */
|
|
HANDLE connect_wait_thr;
|
|
HANDLE cwt_termination_evt;
|
|
PVOID cwt_param;
|
|
|
|
void bind_lock () { shmem->bind_lock (); }
|
|
void bind_unlock () { shmem->bind_unlock (); }
|
|
void conn_lock () { shmem->conn_lock (); }
|
|
void conn_unlock () { shmem->conn_unlock (); }
|
|
void state_lock () { shmem->state_lock (); }
|
|
void state_unlock () { shmem->state_unlock (); }
|
|
void io_lock () { shmem->io_lock (); }
|
|
void io_unlock () { shmem->io_unlock (); }
|
|
conn_state connect_state (conn_state val)
|
|
{ return shmem->connect_state (val); }
|
|
conn_state connect_state () const { return shmem->connect_state (); }
|
|
bind_state binding_state (bind_state val)
|
|
{ return shmem->binding_state (val); }
|
|
bind_state binding_state () const { return shmem->binding_state (); }
|
|
int saw_shutdown (int shut) { return shmem->shutdown (shut); }
|
|
int saw_shutdown () const { return shmem->shutdown (); }
|
|
int so_error (int err) { return shmem->so_error (err); }
|
|
int so_error () const { return shmem->so_error (); }
|
|
bool so_passcred (bool pc) { return shmem->so_passcred (pc); }
|
|
bool so_passcred () const { return shmem->so_passcred (); }
|
|
int reuseaddr (int err) { return shmem->reuseaddr (err); }
|
|
int reuseaddr () const { return shmem->reuseaddr (); }
|
|
void set_socket_type (int val) { shmem->set_socket_type (val); }
|
|
int get_socket_type () const { return shmem->get_socket_type (); }
|
|
|
|
int create_shmem ();
|
|
int reopen_shmem ();
|
|
void gen_pipe_name ();
|
|
static HANDLE create_abstract_link (const sun_name_t *sun,
|
|
PUNICODE_STRING pipe_name);
|
|
static HANDLE create_reparse_point (const sun_name_t *sun,
|
|
PUNICODE_STRING pipe_name);
|
|
HANDLE create_file (const sun_name_t *sun);
|
|
static int open_abstract_link (sun_name_t *sun, PUNICODE_STRING pipe_name);
|
|
static int open_reparse_point (sun_name_t *sun, PUNICODE_STRING pipe_name);
|
|
static int open_file (sun_name_t *sun, int &type, PUNICODE_STRING pipe_name);
|
|
HANDLE autobind (sun_name_t *sun);
|
|
wchar_t get_type_char ();
|
|
void set_pipe_non_blocking (bool nonblocking);
|
|
int send_sock_info (bool from_bind);
|
|
int grab_admin_pkg ();
|
|
int recv_peer_info ();
|
|
HANDLE create_pipe (bool single_instance);
|
|
HANDLE create_pipe_instance ();
|
|
NTSTATUS open_pipe (PUNICODE_STRING pipe_name, bool xchg_sock_info);
|
|
int wait_pipe (PUNICODE_STRING pipe_name);
|
|
int connect_pipe (PUNICODE_STRING pipe_name);
|
|
int listen_pipe ();
|
|
ULONG peek_pipe (PFILE_PIPE_PEEK_BUFFER pbuf, ULONG psize, HANDLE evt);
|
|
int disconnect_pipe (HANDLE ph);
|
|
/* The NULL pointer check is required for FS methods like fstat. When
|
|
called via stat or lstat, there's no shared memory, just a path in pc. */
|
|
sun_name_t *sun_path () {return shmem ? shmem->sun_path () : NULL;}
|
|
sun_name_t *peer_sun_path () {return shmem->peer_sun_path ();}
|
|
void sun_path (struct sockaddr_un *un, __socklen_t unlen)
|
|
{ shmem->sun_path (un, unlen); }
|
|
void sun_path (sun_name_t *snt)
|
|
{ snt ? sun_path (&snt->un, snt->un_len) : sun_path (NULL, 0); }
|
|
void peer_sun_path (struct sockaddr_un *un, __socklen_t unlen)
|
|
{ shmem->peer_sun_path (un, unlen); }
|
|
void peer_sun_path (sun_name_t *snt)
|
|
{ snt ? peer_sun_path (&snt->un, snt->un_len)
|
|
: peer_sun_path (NULL, 0); }
|
|
void init_cred ();
|
|
void set_cred ();
|
|
void sock_cred (struct ucred *uc) { shmem->sock_cred (uc); }
|
|
struct ucred *sock_cred () { return shmem->sock_cred (); }
|
|
void peer_cred (struct ucred *uc) { shmem->peer_cred (uc); }
|
|
struct ucred *peer_cred () { return shmem->peer_cred (); }
|
|
void fixup_after_fork (HANDLE parent);
|
|
void fixup_after_exec ();
|
|
void set_close_on_exec (bool val);
|
|
void fixup_helper ();
|
|
|
|
public:
|
|
fhandler_socket_unix ();
|
|
~fhandler_socket_unix ();
|
|
|
|
int dup (fhandler_base *child, int);
|
|
|
|
DWORD wait_pipe_thread (PUNICODE_STRING pipe_name);
|
|
|
|
int socket (int af, int type, int protocol, int flags);
|
|
int socketpair (int af, int type, int protocol, int flags,
|
|
fhandler_socket *fh_out);
|
|
int bind (const struct sockaddr *name, int namelen);
|
|
int listen (int backlog);
|
|
int accept4 (struct sockaddr *peer, int *len, int flags);
|
|
int connect (const struct sockaddr *name, int namelen);
|
|
int getsockname (struct sockaddr *name, int *namelen);
|
|
int getpeername (struct sockaddr *name, int *namelen);
|
|
int shutdown (int how);
|
|
int open (int flags, mode_t mode = 0);
|
|
int close ();
|
|
int getpeereid (pid_t *pid, uid_t *euid, gid_t *egid);
|
|
ssize_t recvmsg (struct msghdr *msg, int flags);
|
|
ssize_t recvfrom (void *ptr, size_t len, int flags,
|
|
struct sockaddr *from, int *fromlen);
|
|
void read (void *ptr, size_t& len);
|
|
ssize_t readv (const struct iovec *const iov, int iovcnt,
|
|
ssize_t tot = -1);
|
|
|
|
ssize_t sendmsg (const struct msghdr *msg, int flags);
|
|
ssize_t sendto (const void *ptr, size_t len, int flags,
|
|
const struct sockaddr *to, int tolen);
|
|
ssize_t write (const void *ptr, size_t len);
|
|
ssize_t writev (const struct iovec *const iov, int iovcnt,
|
|
ssize_t tot = -1);
|
|
int setsockopt (int level, int optname, const void *optval,
|
|
__socklen_t optlen);
|
|
int getsockopt (int level, int optname, const void *optval,
|
|
__socklen_t *optlen);
|
|
|
|
virtual int ioctl (unsigned int cmd, void *);
|
|
virtual int fcntl (int cmd, intptr_t);
|
|
|
|
int fstat (struct stat *buf);
|
|
int fstatvfs (struct statvfs *buf);
|
|
int fchmod (mode_t newmode);
|
|
int fchown (uid_t newuid, gid_t newgid);
|
|
int facl (int, int, struct acl *);
|
|
struct __acl_t *acl_get (uint32_t);
|
|
int acl_set (struct __acl_t *, uint32_t);
|
|
int link (const char *);
|
|
|
|
/* select.cc */
|
|
select_record *select_read (select_stuff *);
|
|
select_record *select_write (select_stuff *);
|
|
select_record *select_except (select_stuff *);
|
|
|
|
/* from here on: CLONING */
|
|
fhandler_socket_unix (void *) {}
|
|
|
|
void copy_from (fhandler_base *x)
|
|
{
|
|
pc.free_strings ();
|
|
*this = *reinterpret_cast<fhandler_socket_unix *> (x);
|
|
_copy_from_reset_helper ();
|
|
}
|
|
|
|
fhandler_socket_unix *clone (cygheap_types malloc_type = HEAP_FHANDLER)
|
|
{
|
|
void *ptr = (void *) ccalloc (malloc_type, 1, sizeof (fhandler_socket_unix));
|
|
fhandler_socket_unix *fh = new (ptr) fhandler_socket_unix (ptr);
|
|
fh->copy_from (this);
|
|
return fh;
|
|
}
|
|
};
|
|
|
|
#endif /* __WITH_AF_UNIX */
|
|
|
|
/* A parent of fhandler_pipe and fhandler_fifo. */
|
|
class fhandler_pipe_fifo: public fhandler_base
|
|
{
|
|
protected:
|
|
size_t pipe_buf_size;
|
|
virtual void release_select_sem (const char *) {};
|
|
|
|
public:
|
|
fhandler_pipe_fifo ();
|
|
|
|
virtual bool reader_closed () { return false; };
|
|
ssize_t raw_write (const void *ptr, size_t len);
|
|
};
|
|
|
|
class fhandler_pipe: public fhandler_pipe_fifo
|
|
{
|
|
private:
|
|
HANDLE read_mtx;
|
|
pid_t popen_pid;
|
|
HANDLE query_hdl;
|
|
HANDLE hdl_cnt_mtx;
|
|
HANDLE query_hdl_proc;
|
|
HANDLE query_hdl_value;
|
|
HANDLE query_hdl_close_req_evt;
|
|
void release_select_sem (const char *);
|
|
HANDLE get_query_hdl_per_process (OBJECT_NAME_INFORMATION *);
|
|
public:
|
|
fhandler_pipe ();
|
|
|
|
bool ispipe() const { return true; }
|
|
void set_pipe_buf_size ();
|
|
|
|
void set_popen_pid (pid_t pid) {popen_pid = pid;}
|
|
pid_t get_popen_pid () const {return popen_pid;}
|
|
off_t lseek (off_t offset, int whence);
|
|
select_record *select_read (select_stuff *);
|
|
select_record *select_write (select_stuff *);
|
|
select_record *select_except (select_stuff *);
|
|
char *get_proc_fd_name (char *buf);
|
|
int open (int flags, mode_t mode = 0);
|
|
bool open_setup (int flags);
|
|
void fixup_after_fork (HANDLE);
|
|
void fixup_after_exec ();
|
|
int dup (fhandler_base *child, int);
|
|
void set_close_on_exec (bool val);
|
|
int close ();
|
|
void raw_read (void *ptr, size_t& len);
|
|
int ioctl (unsigned int cmd, void *);
|
|
int fcntl (int cmd, intptr_t);
|
|
int fstat (struct stat *buf);
|
|
int fstatvfs (struct statvfs *buf);
|
|
int fadvise (off_t, off_t, int);
|
|
int fallocate (int, off_t, off_t);
|
|
int init (HANDLE, DWORD, mode_t, int64_t);
|
|
static int create (fhandler_pipe *[2], unsigned, int);
|
|
static DWORD create (LPSECURITY_ATTRIBUTES, HANDLE *, HANDLE *, DWORD,
|
|
const char *, DWORD, int64_t *unique_id = NULL);
|
|
fhandler_pipe (void *) {}
|
|
|
|
void copy_from (fhandler_base *x)
|
|
{
|
|
pc.free_strings ();
|
|
*this = *reinterpret_cast<fhandler_pipe *> (x);
|
|
_copy_from_reset_helper ();
|
|
}
|
|
|
|
fhandler_pipe *clone (cygheap_types malloc_type = HEAP_FHANDLER)
|
|
{
|
|
void *ptr = (void *) ccalloc (malloc_type, 1, sizeof (fhandler_pipe));
|
|
fhandler_pipe *fh = new (ptr) fhandler_pipe (ptr);
|
|
fh->copy_from (this);
|
|
return fh;
|
|
}
|
|
void set_pipe_non_blocking (bool nonblocking);
|
|
HANDLE get_query_handle () const { return query_hdl; }
|
|
void close_query_handle ()
|
|
{
|
|
if (query_hdl)
|
|
{
|
|
CloseHandle (query_hdl);
|
|
query_hdl = NULL;
|
|
}
|
|
if (query_hdl_close_req_evt)
|
|
{
|
|
CloseHandle (query_hdl_close_req_evt);
|
|
query_hdl_close_req_evt = NULL;
|
|
}
|
|
}
|
|
bool reader_closed ();
|
|
HANDLE temporary_query_hdl ();
|
|
bool need_close_query_hdl ()
|
|
{
|
|
return query_hdl_close_req_evt ?
|
|
IsEventSignalled (query_hdl_close_req_evt) : false;
|
|
}
|
|
bool request_close_query_hdl ()
|
|
{
|
|
if (query_hdl_close_req_evt)
|
|
{
|
|
SetEvent (query_hdl_close_req_evt);
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
static void spawn_worker (int fileno_stdin, int fileno_stdout,
|
|
int fileno_stderr);
|
|
};
|
|
|
|
#define CYGWIN_FIFO_PIPE_NAME_LEN 47
|
|
|
|
enum fifo_client_connect_state
|
|
{
|
|
fc_unknown,
|
|
fc_error,
|
|
fc_disconnected,
|
|
fc_closing,
|
|
fc_listening,
|
|
fc_connected,
|
|
fc_input_avail,
|
|
};
|
|
|
|
struct fifo_client_handler
|
|
{
|
|
HANDLE h;
|
|
fifo_client_connect_state _state;
|
|
bool last_read; /* true if our last successful read was from this client. */
|
|
fifo_client_handler () : h (NULL), _state (fc_unknown), last_read (false) {}
|
|
void close () { NtClose (h); }
|
|
fifo_client_connect_state get_state () const { return _state; }
|
|
void set_state (fifo_client_connect_state s) { _state = s; }
|
|
/* Query O/S. Return previous state. */
|
|
fifo_client_connect_state query_and_set_state ();
|
|
};
|
|
|
|
class fhandler_fifo;
|
|
|
|
struct fifo_reader_id_t
|
|
{
|
|
DWORD winpid;
|
|
fhandler_fifo *fh;
|
|
|
|
operator bool () const { return winpid != 0 || fh != NULL; }
|
|
|
|
friend bool operator == (const fifo_reader_id_t &l, const fifo_reader_id_t &r)
|
|
{
|
|
return l.winpid == r.winpid && l.fh == r.fh;
|
|
}
|
|
|
|
friend bool operator != (const fifo_reader_id_t &l, const fifo_reader_id_t &r)
|
|
{
|
|
return l.winpid != r.winpid || l.fh != r.fh;
|
|
}
|
|
};
|
|
|
|
/* Info needed by all fhandlers for a given FIFO, stored in named
|
|
shared memory. This is mostly for readers, but writers need access
|
|
in order to update the count of open writers. */
|
|
class fifo_shmem_t
|
|
{
|
|
LONG _nreaders, _nwriters;
|
|
/* Set to 1 the first time a writer opens. */
|
|
LONG _writer_opened;
|
|
fifo_reader_id_t _owner, _prev_owner, _pending_owner;
|
|
af_unix_spinlock_t _owner_lock, _reading_lock, _nreaders_lock, _nwriters_lock;
|
|
|
|
/* Info about shared memory block used for temporary storage of the
|
|
owner's fc_handler list. */
|
|
LONG _sh_nhandlers, _sh_shandlers, _sh_fc_handler_committed,
|
|
_sh_fc_handler_updated;
|
|
|
|
public:
|
|
int nreaders () const { return (int) _nreaders; }
|
|
int inc_nreaders () { return (int) InterlockedIncrement (&_nreaders); }
|
|
int dec_nreaders () { return (int) InterlockedDecrement (&_nreaders); }
|
|
int nwriters () const { return (int) _nwriters; }
|
|
int inc_nwriters () { return (int) InterlockedIncrement (&_nwriters); }
|
|
int dec_nwriters () { return (int) InterlockedDecrement (&_nwriters); }
|
|
|
|
bool writer_opened () const { return (bool) _writer_opened; }
|
|
void set_writer_opened () { InterlockedExchange (&_writer_opened, 1); }
|
|
|
|
fifo_reader_id_t get_owner () const { return _owner; }
|
|
void set_owner (fifo_reader_id_t fr_id) { _owner = fr_id; }
|
|
fifo_reader_id_t get_prev_owner () const { return _prev_owner; }
|
|
void set_prev_owner (fifo_reader_id_t fr_id) { _prev_owner = fr_id; }
|
|
fifo_reader_id_t get_pending_owner () const { return _pending_owner; }
|
|
void set_pending_owner (fifo_reader_id_t fr_id) { _pending_owner = fr_id; }
|
|
|
|
void owner_lock () { _owner_lock.lock (); }
|
|
void owner_unlock () { _owner_lock.unlock (); }
|
|
void reading_lock () { _reading_lock.lock (); }
|
|
void reading_unlock () { _reading_lock.unlock (); }
|
|
void nreaders_lock () { _nreaders_lock.lock (); }
|
|
void nreaders_unlock () { _nreaders_lock.unlock (); }
|
|
void nwriters_lock () { _nwriters_lock.lock (); }
|
|
void nwriters_unlock () { _nwriters_lock.unlock (); }
|
|
|
|
int get_shared_nhandlers () const { return (int) _sh_nhandlers; }
|
|
void set_shared_nhandlers (int n) { InterlockedExchange (&_sh_nhandlers, n); }
|
|
int get_shared_shandlers () const { return (int) _sh_shandlers; }
|
|
void set_shared_shandlers (int n) { InterlockedExchange (&_sh_shandlers, n); }
|
|
size_t get_shared_fc_handler_committed () const
|
|
{ return (size_t) _sh_fc_handler_committed; }
|
|
void set_shared_fc_handler_committed (size_t n)
|
|
{ InterlockedExchange (&_sh_fc_handler_committed, (LONG) n); }
|
|
bool shared_fc_handler_updated () const { return _sh_fc_handler_updated; }
|
|
void shared_fc_handler_updated (bool val)
|
|
{ InterlockedExchange (&_sh_fc_handler_updated, val); }
|
|
};
|
|
|
|
class fhandler_fifo: public fhandler_pipe_fifo
|
|
{
|
|
/* Handles to named events shared by all fhandlers for a given FIFO. */
|
|
HANDLE read_ready; /* A reader is open; OK for a writer to open. */
|
|
HANDLE write_ready; /* A writer is open; OK for a reader to open. */
|
|
HANDLE writer_opening; /* A writer is opening; no EOF. */
|
|
|
|
/* Handles to named events needed by all readers of a given FIFO. */
|
|
HANDLE owner_needed_evt; /* The owner is closing. */
|
|
HANDLE owner_found_evt; /* A new owner has taken over. */
|
|
HANDLE update_needed_evt; /* shared_fc_handler needs updating. */
|
|
|
|
/* Handles to non-shared events needed for fifo_reader_threads. */
|
|
HANDLE cancel_evt; /* Signal thread to terminate. */
|
|
HANDLE thr_sync_evt; /* The thread has terminated. */
|
|
|
|
UNICODE_STRING pipe_name;
|
|
PWCHAR pipe_name_buf;
|
|
fifo_client_handler *fc_handler; /* Dynamically growing array. */
|
|
int shandlers; /* Size (capacity) of the array. */
|
|
int nhandlers; /* Number of elements in the array. */
|
|
af_unix_spinlock_t _fifo_client_lock;
|
|
bool reader, writer, duplexer;
|
|
fifo_reader_id_t me;
|
|
|
|
HANDLE shmem_handle;
|
|
fifo_shmem_t *shmem;
|
|
HANDLE shared_fc_hdl;
|
|
/* Dynamically growing array in shared memory. */
|
|
fifo_client_handler *shared_fc_handler;
|
|
|
|
bool wait (HANDLE);
|
|
HANDLE create_pipe_instance ();
|
|
NTSTATUS open_pipe (HANDLE&);
|
|
NTSTATUS wait_open_pipe (HANDLE&);
|
|
int add_client_handler (bool new_pipe_instance = true);
|
|
void delete_client_handler (int);
|
|
void cleanup_handlers ();
|
|
void close_all_handlers ();
|
|
void cancel_reader_thread ();
|
|
|
|
int create_shmem (bool only_open = false);
|
|
int reopen_shmem ();
|
|
int create_shared_fc_handler ();
|
|
int reopen_shared_fc_handler ();
|
|
int remap_shared_fc_handler (size_t);
|
|
|
|
int nreaders () const { return shmem->nreaders (); }
|
|
int inc_nreaders () { return shmem->inc_nreaders (); }
|
|
int dec_nreaders () { return shmem->dec_nreaders (); }
|
|
int nwriters () const { return shmem->nwriters (); }
|
|
int inc_nwriters () { return shmem->inc_nwriters (); }
|
|
int dec_nwriters () { return shmem->dec_nwriters (); }
|
|
bool writer_opened () const { return shmem->writer_opened (); }
|
|
void set_writer_opened () { shmem->set_writer_opened (); }
|
|
void nreaders_lock () { shmem->nreaders_lock (); }
|
|
void nreaders_unlock () { shmem->nreaders_unlock (); }
|
|
void nwriters_lock () { shmem->nwriters_lock (); }
|
|
void nwriters_unlock () { shmem->nwriters_unlock (); }
|
|
|
|
fifo_reader_id_t get_owner () const { return shmem->get_owner (); }
|
|
void set_owner (fifo_reader_id_t fr_id) { shmem->set_owner (fr_id); }
|
|
fifo_reader_id_t get_prev_owner () const { return shmem->get_prev_owner (); }
|
|
void set_prev_owner (fifo_reader_id_t fr_id)
|
|
{ shmem->set_prev_owner (fr_id); }
|
|
fifo_reader_id_t get_pending_owner () const
|
|
{ return shmem->get_pending_owner (); }
|
|
void set_pending_owner (fifo_reader_id_t fr_id)
|
|
{ shmem->set_pending_owner (fr_id); }
|
|
void owner_lock () { shmem->owner_lock (); }
|
|
void owner_unlock () { shmem->owner_unlock (); }
|
|
|
|
void owner_needed ()
|
|
{
|
|
ResetEvent (owner_found_evt);
|
|
SetEvent (owner_needed_evt);
|
|
}
|
|
void owner_found ()
|
|
{
|
|
ResetEvent (owner_needed_evt);
|
|
SetEvent (owner_found_evt);
|
|
}
|
|
|
|
int get_shared_nhandlers () { return shmem->get_shared_nhandlers (); }
|
|
void set_shared_nhandlers (int n) { shmem->set_shared_nhandlers (n); }
|
|
int get_shared_shandlers () { return shmem->get_shared_shandlers (); }
|
|
void set_shared_shandlers (int n) { shmem->set_shared_shandlers (n); }
|
|
size_t get_shared_fc_handler_committed () const
|
|
{ return shmem->get_shared_fc_handler_committed (); }
|
|
void set_shared_fc_handler_committed (size_t n)
|
|
{ shmem->set_shared_fc_handler_committed (n); }
|
|
int update_my_handlers ();
|
|
int update_shared_handlers ();
|
|
bool shared_fc_handler_updated () const
|
|
{ return shmem->shared_fc_handler_updated (); }
|
|
void shared_fc_handler_updated (bool val)
|
|
{ shmem->shared_fc_handler_updated (val); }
|
|
|
|
void release_select_sem (const char *);
|
|
|
|
public:
|
|
fhandler_fifo ();
|
|
~fhandler_fifo ()
|
|
{
|
|
if (pipe_name_buf)
|
|
cfree (pipe_name_buf);
|
|
}
|
|
/* Called if we appear to be at EOF after polling fc_handlers. */
|
|
bool hit_eof () const
|
|
{ return !nwriters () && !IsEventSignalled (writer_opening); }
|
|
/* Special EOF test needed by select.cc:peek_fifo(). */
|
|
bool select_hit_eof () const { return hit_eof () && writer_opened (); }
|
|
int get_nhandlers () const { return nhandlers; }
|
|
fifo_client_handler &get_fc_handler (int i) { return fc_handler[i]; }
|
|
PUNICODE_STRING get_pipe_name ();
|
|
DWORD fifo_reader_thread_func ();
|
|
void fifo_client_lock () { _fifo_client_lock.lock (); }
|
|
void fifo_client_unlock () { _fifo_client_lock.unlock (); }
|
|
void record_connection (fifo_client_handler&, bool = true,
|
|
fifo_client_connect_state = fc_connected);
|
|
|
|
int take_ownership (DWORD timeout = INFINITE);
|
|
void reading_lock () { shmem->reading_lock (); }
|
|
void reading_unlock () { shmem->reading_unlock (); }
|
|
|
|
int open (int, mode_t);
|
|
off_t lseek (off_t offset, int whence);
|
|
int close ();
|
|
int fcntl (int cmd, intptr_t);
|
|
int dup (fhandler_base *child, int);
|
|
bool isfifo () const { return true; }
|
|
void set_close_on_exec (bool val);
|
|
void raw_read (void *ptr, size_t& ulen);
|
|
void fixup_after_fork (HANDLE);
|
|
void fixup_after_exec ();
|
|
int fstat (struct stat *buf);
|
|
int fstatvfs (struct statvfs *buf);
|
|
select_record *select_read (select_stuff *);
|
|
select_record *select_write (select_stuff *);
|
|
select_record *select_except (select_stuff *);
|
|
|
|
fhandler_fifo (void *) {}
|
|
|
|
void copy_from (fhandler_base *x)
|
|
{
|
|
pc.free_strings ();
|
|
*this = *reinterpret_cast<fhandler_fifo *> (x);
|
|
_copy_from_reset_helper ();
|
|
}
|
|
|
|
fhandler_fifo *clone (cygheap_types malloc_type = HEAP_FHANDLER)
|
|
{
|
|
void *ptr = (void *) ccalloc (malloc_type, 1, sizeof (fhandler_fifo));
|
|
fhandler_fifo *fhf = new (ptr) fhandler_fifo (ptr);
|
|
fhf->copy_from (this);
|
|
fhf->pipe_name_buf = NULL;
|
|
return fhf;
|
|
}
|
|
};
|
|
|
|
class fhandler_dev_raw: public fhandler_base
|
|
{
|
|
protected:
|
|
char *devbufalloc;
|
|
char *devbuf;
|
|
DWORD devbufalign;
|
|
DWORD devbufsiz;
|
|
DWORD devbufstart;
|
|
DWORD devbufend;
|
|
struct status_flags
|
|
{
|
|
unsigned lastblk_to_read : 1;
|
|
public:
|
|
status_flags () : lastblk_to_read (0) {}
|
|
} status;
|
|
|
|
IMPLEMENT_STATUS_FLAG (bool, lastblk_to_read)
|
|
|
|
fhandler_dev_raw ();
|
|
|
|
public:
|
|
~fhandler_dev_raw ();
|
|
|
|
int open (int flags, mode_t mode = 0);
|
|
|
|
int fstat (struct stat *buf);
|
|
|
|
int dup (fhandler_base *child, int);
|
|
int ioctl (unsigned int cmd, void *buf);
|
|
|
|
void fixup_after_fork (HANDLE);
|
|
void fixup_after_exec ();
|
|
|
|
fhandler_dev_raw (void *) {}
|
|
|
|
void copy_from (fhandler_base *x)
|
|
{
|
|
pc.free_strings ();
|
|
*this = *reinterpret_cast<fhandler_dev_raw *> (x);
|
|
_copy_from_reset_helper ();
|
|
}
|
|
|
|
fhandler_dev_raw *clone (cygheap_types malloc_type = HEAP_FHANDLER)
|
|
{
|
|
void *ptr = (void *) ccalloc (malloc_type, 1, sizeof (fhandler_dev_raw));
|
|
fhandler_dev_raw *fh = new (ptr) fhandler_dev_raw (ptr);
|
|
fh->copy_from (this);
|
|
return fh;
|
|
}
|
|
};
|
|
|
|
#define MAX_PARTITIONS 15
|
|
|
|
struct part_t
|
|
{
|
|
LONG refcnt;
|
|
HANDLE hdl[MAX_PARTITIONS];
|
|
};
|
|
|
|
class fhandler_dev_floppy: public fhandler_dev_raw
|
|
{
|
|
private:
|
|
off_t drive_size;
|
|
part_t *partitions;
|
|
struct status_flags
|
|
{
|
|
unsigned eom_detected : 1;
|
|
public:
|
|
status_flags () : eom_detected (0) {}
|
|
} status;
|
|
|
|
IMPLEMENT_STATUS_FLAG (bool, eom_detected)
|
|
|
|
inline off_t get_current_position ();
|
|
int get_drive_info (struct hd_geometry *geo);
|
|
|
|
int lock_partition (DWORD to_write);
|
|
|
|
BOOL write_file (const void *buf, DWORD to_write, DWORD *written, int *err);
|
|
BOOL read_file (void *buf, DWORD to_read, DWORD *read, int *err);
|
|
|
|
public:
|
|
fhandler_dev_floppy ();
|
|
|
|
int open (int flags, mode_t mode = 0);
|
|
int close ();
|
|
int dup (fhandler_base *child, int);
|
|
void raw_read (void *ptr, size_t& ulen);
|
|
ssize_t raw_write (const void *ptr, size_t ulen);
|
|
off_t lseek (off_t offset, int whence);
|
|
int ioctl (unsigned int cmd, void *buf);
|
|
|
|
fhandler_dev_floppy (void *) {}
|
|
|
|
void copy_from (fhandler_base *x)
|
|
{
|
|
pc.free_strings ();
|
|
*this = *reinterpret_cast<fhandler_dev_floppy *> (x);
|
|
_copy_from_reset_helper ();
|
|
}
|
|
|
|
fhandler_dev_floppy *clone (cygheap_types malloc_type = HEAP_FHANDLER)
|
|
{
|
|
void *ptr = (void *) ccalloc (malloc_type, 1, sizeof (fhandler_dev_floppy));
|
|
fhandler_dev_floppy *fh = new (ptr) fhandler_dev_floppy (ptr);
|
|
fh->copy_from (this);
|
|
return fh;
|
|
}
|
|
};
|
|
|
|
class fhandler_dev_tape: public fhandler_dev_raw
|
|
{
|
|
HANDLE mt_mtx;
|
|
OVERLAPPED ov;
|
|
|
|
bool is_rewind_device () { return get_minor () < 128; }
|
|
unsigned int driveno () { return (unsigned int) get_minor () & 0x7f; }
|
|
void drive_init ();
|
|
|
|
inline bool _lock (bool);
|
|
inline int unlock (int ret = 0);
|
|
|
|
public:
|
|
fhandler_dev_tape ();
|
|
|
|
int open (int flags, mode_t mode = 0);
|
|
virtual int close ();
|
|
|
|
void raw_read (void *ptr, size_t& ulen);
|
|
ssize_t raw_write (const void *ptr, size_t ulen);
|
|
|
|
virtual off_t lseek (off_t offset, int whence);
|
|
|
|
virtual int fstat (struct stat *buf);
|
|
|
|
virtual int dup (fhandler_base *child, int);
|
|
virtual void fixup_after_fork (HANDLE parent);
|
|
virtual void set_close_on_exec (bool val);
|
|
virtual int ioctl (unsigned int cmd, void *buf);
|
|
|
|
fhandler_dev_tape (void *) {}
|
|
|
|
void copy_from (fhandler_base *x)
|
|
{
|
|
pc.free_strings ();
|
|
*this = *reinterpret_cast<fhandler_dev_tape *> (x);
|
|
_copy_from_reset_helper ();
|
|
}
|
|
|
|
fhandler_dev_tape *clone (cygheap_types malloc_type = HEAP_FHANDLER)
|
|
{
|
|
void *ptr = (void *) ccalloc (malloc_type, 1, sizeof (fhandler_dev_tape));
|
|
fhandler_dev_tape *fh = new (ptr) fhandler_dev_tape (ptr);
|
|
fh->copy_from (this);
|
|
return fh;
|
|
}
|
|
};
|
|
|
|
/* Standard disk file */
|
|
|
|
class fhandler_disk_file: public fhandler_base
|
|
{
|
|
HANDLE prw_handle;
|
|
bool prw_handle_isasync;
|
|
int readdir_helper (DIR *, dirent *, DWORD, DWORD, PUNICODE_STRING fname);
|
|
|
|
int prw_open (bool, void *);
|
|
uint64_t fs_ioc_getflags ();
|
|
int fs_ioc_setflags (uint64_t);
|
|
|
|
falloc_allocate (int, off_t, off_t);
|
|
falloc_punch_hole (off_t, off_t);
|
|
falloc_zero_range (int, off_t, off_t);
|
|
|
|
public:
|
|
fhandler_disk_file ();
|
|
fhandler_disk_file (path_conv &pc);
|
|
|
|
int open (int flags, mode_t mode);
|
|
int close ();
|
|
int fcntl (int cmd, intptr_t);
|
|
int dup (fhandler_base *child, int);
|
|
void fixup_after_fork (HANDLE parent);
|
|
int mand_lock (int, struct flock *);
|
|
int fstat (struct stat *buf);
|
|
int fchmod (mode_t mode);
|
|
int fchown (uid_t uid, gid_t gid);
|
|
int facl (int, int, struct acl *);
|
|
struct __acl_t *acl_get (uint32_t);
|
|
int acl_set (struct __acl_t *, uint32_t);
|
|
ssize_t fgetxattr (const char *, void *, size_t);
|
|
int fsetxattr (const char *, const void *, size_t, int);
|
|
int fadvise (off_t, off_t, int);
|
|
int fallocate (int, off_t, off_t);
|
|
int link (const char *);
|
|
int utimens (const struct timespec *);
|
|
int fstatvfs (struct statvfs *buf);
|
|
int ioctl (unsigned int cmd, void *buf);
|
|
|
|
HANDLE mmap (caddr_t *addr, size_t len, int prot, int flags, off_t off);
|
|
int munmap (HANDLE h, caddr_t addr, size_t len);
|
|
int msync (HANDLE h, caddr_t addr, size_t len, int flags);
|
|
bool fixup_mmap_after_fork (HANDLE h, int prot, int flags,
|
|
off_t offset, SIZE_T size, void *address);
|
|
int mkdir (mode_t mode);
|
|
int rmdir ();
|
|
DIR *opendir (int fd);
|
|
int readdir (DIR *, dirent *);
|
|
long telldir (DIR *);
|
|
void seekdir (DIR *, long);
|
|
void rewinddir (DIR *);
|
|
int closedir (DIR *);
|
|
|
|
ssize_t pread (void *, size_t, off_t, void *aio = NULL);
|
|
ssize_t pwrite (void *, size_t, off_t, void *aio = NULL);
|
|
|
|
fhandler_disk_file (void *) {}
|
|
dev_t get_dev () { return pc.fs_serial_number (); }
|
|
|
|
void copy_from (fhandler_base *x)
|
|
{
|
|
pc.free_strings ();
|
|
*this = *reinterpret_cast<fhandler_disk_file *> (x);
|
|
_copy_from_reset_helper ();
|
|
}
|
|
|
|
fhandler_disk_file *clone (cygheap_types malloc_type = HEAP_FHANDLER)
|
|
{
|
|
void *ptr = (void *) ccalloc (malloc_type, 1, sizeof (fhandler_disk_file));
|
|
fhandler_disk_file *fh = new (ptr) fhandler_disk_file (ptr);
|
|
fh->copy_from (this);
|
|
return fh;
|
|
}
|
|
};
|
|
|
|
class fhandler_dev: public fhandler_disk_file
|
|
{
|
|
const struct _device *devidx;
|
|
bool dir_exists;
|
|
int drive, part;
|
|
public:
|
|
fhandler_dev ();
|
|
int open (int flags, mode_t mode);
|
|
int close ();
|
|
int fstat (struct stat *buf);
|
|
int fstatvfs (struct statvfs *buf);
|
|
int rmdir ();
|
|
DIR *opendir (int fd);
|
|
int readdir (DIR *, dirent *);
|
|
void rewinddir (DIR *);
|
|
|
|
fhandler_dev (void *) {}
|
|
dev_t get_dev () { return dir_exists ? pc.fs_serial_number ()
|
|
: get_device (); }
|
|
|
|
void copy_from (fhandler_base *x)
|
|
{
|
|
pc.free_strings ();
|
|
*this = *reinterpret_cast<fhandler_dev *> (x);
|
|
_copy_from_reset_helper ();
|
|
}
|
|
|
|
fhandler_dev *clone (cygheap_types malloc_type = HEAP_FHANDLER)
|
|
{
|
|
void *ptr = (void *) ccalloc (malloc_type, 1, sizeof (fhandler_dev));
|
|
fhandler_dev *fh = new (ptr) fhandler_dev (ptr);
|
|
fh->copy_from (this);
|
|
return fh;
|
|
}
|
|
};
|
|
|
|
class fhandler_cygdrive: public fhandler_disk_file
|
|
{
|
|
public:
|
|
fhandler_cygdrive ();
|
|
int open (int flags, mode_t mode);
|
|
DIR *opendir (int fd);
|
|
int readdir (DIR *, dirent *);
|
|
void rewinddir (DIR *);
|
|
int closedir (DIR *);
|
|
int fstat (struct stat *buf);
|
|
int fstatvfs (struct statvfs *buf);
|
|
|
|
fhandler_cygdrive (void *) {}
|
|
dev_t get_dev () { return get_device (); }
|
|
|
|
void copy_from (fhandler_base *x)
|
|
{
|
|
pc.free_strings ();
|
|
*this = *reinterpret_cast<fhandler_cygdrive *> (x);
|
|
_copy_from_reset_helper ();
|
|
}
|
|
|
|
fhandler_cygdrive *clone (cygheap_types malloc_type = HEAP_FHANDLER)
|
|
{
|
|
void *ptr = (void *) ccalloc (malloc_type, 1, sizeof (fhandler_cygdrive));
|
|
fhandler_cygdrive *fh = new (ptr) fhandler_cygdrive (ptr);
|
|
fh->copy_from (this);
|
|
return fh;
|
|
}
|
|
};
|
|
|
|
class fhandler_serial: public fhandler_base
|
|
{
|
|
private:
|
|
cc_t vmin_; /* from termios */
|
|
cc_t vtime_; /* from termios */
|
|
pid_t pgrp_;
|
|
int rts; /* for Windows 9x purposes only */
|
|
int dtr; /* for Windows 9x purposes only */
|
|
|
|
public:
|
|
/* Constructor */
|
|
fhandler_serial ();
|
|
|
|
int open (int flags, mode_t mode);
|
|
int init (HANDLE h, DWORD a, mode_t flags);
|
|
void raw_read (void *ptr, size_t& ulen);
|
|
ssize_t raw_write (const void *ptr, size_t ulen);
|
|
int tcsendbreak (int);
|
|
int tcdrain ();
|
|
int tcflow (int);
|
|
int ioctl (unsigned int cmd, void *);
|
|
int switch_modem_lines (int set, int clr);
|
|
int tcsetattr (int a, const struct termios *t);
|
|
int tcgetattr (struct termios *t);
|
|
off_t lseek (off_t, int)
|
|
{
|
|
set_errno (ESPIPE);
|
|
return -1;
|
|
}
|
|
int tcflush (int);
|
|
bool is_tty () const { return true; }
|
|
|
|
/* We maintain a pgrp so that tcsetpgrp and tcgetpgrp work, but we
|
|
don't use it for permissions checking. fhandler_pty_slave does
|
|
permission checking on pgrps. */
|
|
virtual int tcgetpgrp () { return pgrp_; }
|
|
virtual int tcsetpgrp (const pid_t pid) { pgrp_ = pid; return 0; }
|
|
select_record *select_read (select_stuff *);
|
|
select_record *select_write (select_stuff *);
|
|
select_record *select_except (select_stuff *);
|
|
|
|
fhandler_serial (void *) {}
|
|
|
|
void copy_from (fhandler_base *x)
|
|
{
|
|
pc.free_strings ();
|
|
*this = *reinterpret_cast<fhandler_serial *> (x);
|
|
_copy_from_reset_helper ();
|
|
}
|
|
|
|
fhandler_serial *clone (cygheap_types malloc_type = HEAP_FHANDLER)
|
|
{
|
|
void *ptr = (void *) ccalloc (malloc_type, 1, sizeof (fhandler_serial));
|
|
fhandler_serial *fh = new (ptr) fhandler_serial (ptr);
|
|
fh->copy_from (this);
|
|
return fh;
|
|
}
|
|
};
|
|
|
|
#define acquire_input_mutex(ms) \
|
|
__acquire_input_mutex (__PRETTY_FUNCTION__, __LINE__, ms)
|
|
|
|
#define release_input_mutex() \
|
|
__release_input_mutex (__PRETTY_FUNCTION__, __LINE__)
|
|
|
|
#define acquire_output_mutex(ms) \
|
|
__acquire_output_mutex (__PRETTY_FUNCTION__, __LINE__, ms)
|
|
|
|
#define release_output_mutex() \
|
|
__release_output_mutex (__PRETTY_FUNCTION__, __LINE__)
|
|
|
|
/*
|
|
-1: CTTY is not initialized yet. Can associate with the TTY
|
|
which is associated with the own session.
|
|
-2: CTTY has been released by setsid(). Can associate with
|
|
a new TTY as CTTY, but cannot associate with the TTYs
|
|
already associated with other sessions.
|
|
*/
|
|
#define CTTY_UNINITIALIZED -1
|
|
#define CTTY_RELEASED -2
|
|
#define CTTY_IS_VALID(c) ((c) > 0)
|
|
|
|
extern DWORD mutex_timeout;
|
|
DWORD acquire_attach_mutex (DWORD t);
|
|
void release_attach_mutex (void);
|
|
|
|
class tty;
|
|
class tty_min;
|
|
class fhandler_termios: public fhandler_base
|
|
{
|
|
private:
|
|
HANDLE output_handle;
|
|
protected:
|
|
virtual void doecho (const void *, DWORD) {};
|
|
virtual int accept_input () {return 1;};
|
|
int ioctl (int, void *);
|
|
tty_min *_tc;
|
|
tty *get_ttyp () {return (tty *) tc ();}
|
|
int eat_readahead (int n);
|
|
virtual void acquire_input_mutex_if_necessary (DWORD ms) {};
|
|
virtual void release_input_mutex_if_necessary (void) {};
|
|
virtual void discard_input () {};
|
|
dev_t dev_referred_via;
|
|
|
|
/* Result status of processing keys in process_sigs(). */
|
|
enum process_sig_state {
|
|
signalled, /* Signalled normally */
|
|
not_signalled, /* Not signalled at all */
|
|
not_signalled_but_done, /* Not signalled, but CTRL_C_EVENT was sent. */
|
|
not_signalled_with_nat_reader, /* Not signalled, but detected non-cygwin
|
|
process may be reading the tty. */
|
|
done_with_debugger /* The key was processed (CTRL_C_EVENT was sent)
|
|
for inferior of GDB. */
|
|
};
|
|
|
|
public:
|
|
virtual pid_t tc_getpgid () { return 0; };
|
|
tty_min*& tc () {return _tc;}
|
|
fhandler_termios () :
|
|
fhandler_base ()
|
|
{
|
|
need_fork_fixup (true);
|
|
}
|
|
HANDLE& get_output_handle () { return output_handle; }
|
|
HANDLE& get_output_handle_nat () { return output_handle; }
|
|
static process_sig_state process_sigs (char c, tty *ttyp,
|
|
fhandler_termios *fh);
|
|
static bool process_stop_start (char c, tty *ttyp);
|
|
line_edit_status line_edit (const char *rptr, size_t nread, termios&,
|
|
ssize_t *bytes_read = NULL);
|
|
void set_output_handle (HANDLE h) { output_handle = h; }
|
|
void tcinit (bool force);
|
|
bool is_tty () const { return true; }
|
|
void sigflush ();
|
|
int tcgetpgrp ();
|
|
int tcsetpgrp (int pid);
|
|
bg_check_types bg_check (int sig, bool dontsignal = false);
|
|
virtual DWORD __acquire_output_mutex (const char *fn, int ln, DWORD ms) {return 1;}
|
|
virtual void __release_output_mutex (const char *fn, int ln) {}
|
|
void echo_erase (int force = 0);
|
|
virtual off_t lseek (off_t, int);
|
|
pid_t tcgetsid ();
|
|
virtual int fstat (struct stat *buf);
|
|
|
|
fhandler_termios (void *) {}
|
|
|
|
virtual void copy_from (fhandler_base *x)
|
|
{
|
|
pc.free_strings ();
|
|
*this = *reinterpret_cast<fhandler_termios *> (x);
|
|
_copy_from_reset_helper ();
|
|
}
|
|
|
|
virtual fhandler_termios *clone (cygheap_types malloc_type = HEAP_FHANDLER)
|
|
{
|
|
void *ptr = (void *) ccalloc (malloc_type, 1, sizeof (fhandler_termios));
|
|
fhandler_termios *fh = new (ptr) fhandler_termios (ptr);
|
|
fh->copy_from (this);
|
|
return fh;
|
|
}
|
|
static bool path_iscygexec_a (LPCSTR n, LPSTR c);
|
|
static bool path_iscygexec_w (LPCWSTR n, LPWSTR c);
|
|
virtual void cleanup_before_exit () {}
|
|
virtual void setpgid_aux (pid_t pid) {}
|
|
virtual bool need_console_handler () { return false; }
|
|
virtual bool need_send_ctrl_c_event () { return true; }
|
|
|
|
struct ptys_handle_set_t
|
|
{
|
|
HANDLE from_master_nat;
|
|
HANDLE input_available_event;
|
|
HANDLE input_mutex;
|
|
HANDLE pipe_sw_mutex;
|
|
};
|
|
struct cons_handle_set_t
|
|
{
|
|
HANDLE input_handle;
|
|
HANDLE output_handle;
|
|
HANDLE input_mutex;
|
|
HANDLE output_mutex;
|
|
_minor_t unit;
|
|
};
|
|
class spawn_worker
|
|
{
|
|
private:
|
|
ptys_handle_set_t ptys_handle_set;
|
|
cons_handle_set_t cons_handle_set;
|
|
bool ptys_need_cleanup;
|
|
bool cons_need_cleanup;
|
|
bool stdin_is_ptys;
|
|
tty *ptys_ttyp;
|
|
public:
|
|
spawn_worker () :
|
|
ptys_need_cleanup (false), cons_need_cleanup (false),
|
|
stdin_is_ptys (false), ptys_ttyp (NULL) {}
|
|
void setup (bool iscygwin, HANDLE h_stdin, const WCHAR *runpath,
|
|
bool nopcon, bool reset_sendsig, const WCHAR *envblock);
|
|
bool need_cleanup () { return ptys_need_cleanup || cons_need_cleanup; }
|
|
void cleanup ();
|
|
void close_handle_set ();
|
|
};
|
|
};
|
|
|
|
enum ansi_intensity
|
|
{
|
|
INTENSITY_INVISIBLE,
|
|
INTENSITY_DIM,
|
|
INTENSITY_NORMAL,
|
|
INTENSITY_BOLD
|
|
};
|
|
|
|
#define normal 0
|
|
#define gotesc 1
|
|
#define gotsquare 2
|
|
#define gotarg1 3
|
|
#define gotrsquare 4
|
|
#define gotcommand 5
|
|
#define gettitle 6
|
|
#define eattitle 7
|
|
#define gotparen 8
|
|
#define gotrparen 9
|
|
#define eatpalette 10
|
|
#define endpalette 11
|
|
#define MAXARGS 16
|
|
|
|
enum cltype
|
|
{
|
|
cl_curr_pos = 1,
|
|
cl_disp_beg,
|
|
cl_disp_end,
|
|
cl_buf_beg,
|
|
cl_buf_end
|
|
};
|
|
|
|
class dev_console
|
|
{
|
|
pid_t owner;
|
|
bool is_legacy;
|
|
bool orig_virtual_terminal_processing_mode;
|
|
|
|
WORD default_color, underline_color, dim_color;
|
|
|
|
/* Used to determine if an input keystroke should be modified with META. */
|
|
int meta_mask;
|
|
|
|
/* Output state */
|
|
int state;
|
|
int args[MAXARGS];
|
|
int nargs;
|
|
unsigned rarg;
|
|
bool saw_question_mark;
|
|
bool saw_greater_than_sign;
|
|
bool saw_space;
|
|
bool saw_exclamation_mark;
|
|
bool vt100_graphics_mode_G0;
|
|
bool vt100_graphics_mode_G1;
|
|
bool iso_2022_G1;
|
|
bool alternate_charset_active;
|
|
bool metabit;
|
|
char backspace_keycode;
|
|
bool screen_alternated; /* For xterm compatible mode only */
|
|
|
|
char my_title_buf [TITLESIZE + 1];
|
|
|
|
WORD current_win32_attr;
|
|
ansi_intensity intensity;
|
|
bool underline, blink, reverse;
|
|
WORD fg, bg;
|
|
|
|
/* saved cursor coordinates */
|
|
int savex, savey;
|
|
|
|
|
|
struct
|
|
{
|
|
short Top;
|
|
short Bottom;
|
|
} scroll_region;
|
|
|
|
CONSOLE_SCREEN_BUFFER_INFO b;
|
|
COORD dwWinSize;
|
|
COORD dwEnd;
|
|
|
|
/* saved screen */
|
|
COORD save_bufsize;
|
|
PCHAR_INFO save_buf;
|
|
COORD save_cursor;
|
|
SHORT save_top;
|
|
|
|
COORD dwLastCursorPosition;
|
|
COORD dwMousePosition; /* scroll-adjusted coord of mouse event */
|
|
COORD dwLastMousePosition; /* scroll-adjusted coord of previous mouse event */
|
|
DWORD dwLastButtonState; /* (not noting mouse wheel events) */
|
|
int last_button_code; /* transformed mouse report button code */
|
|
int nModifiers;
|
|
|
|
bool insert_mode;
|
|
int use_mouse;
|
|
bool ext_mouse_mode5;
|
|
bool ext_mouse_mode6;
|
|
bool ext_mouse_mode15;
|
|
bool use_focus;
|
|
bool raw_win32_keyboard_mode;
|
|
char cons_rabuf[40]; // cannot get longer than char buf[40] in char_command
|
|
char *cons_rapoi;
|
|
bool cursor_key_app_mode;
|
|
bool disable_master_thread;
|
|
bool master_thread_suspended;
|
|
int num_processed; /* Number of input events in the current input buffer
|
|
already processed by cons_master_thread(). */
|
|
|
|
inline UINT get_console_cp ();
|
|
DWORD con_to_str (char *d, int dlen, WCHAR w);
|
|
DWORD str_to_con (mbtowc_p, PWCHAR d, const char *s, DWORD sz);
|
|
void set_color (HANDLE);
|
|
void set_default_attr ();
|
|
int set_cl_x (cltype);
|
|
int set_cl_y (cltype);
|
|
bool fillin (HANDLE);
|
|
bool scroll_window (HANDLE, int, int, int, int);
|
|
void scroll_buffer (HANDLE, int, int, int, int, int, int);
|
|
void clear_screen (HANDLE, int, int, int, int);
|
|
void save_restore (HANDLE, char);
|
|
|
|
friend class fhandler_console;
|
|
};
|
|
|
|
#define MAX_CONS_DEV (sizeof (unsigned long) * 8)
|
|
#define CONS_SCAN_UNUSED (-1)
|
|
#define CONS_LIST_USED (-2)
|
|
|
|
/* This is a input and output console handle */
|
|
class fhandler_console: public fhandler_termios
|
|
{
|
|
public:
|
|
struct console_state
|
|
{
|
|
tty_min tty_min_state;
|
|
dev_console con;
|
|
};
|
|
bool input_ready;
|
|
enum input_states
|
|
{
|
|
input_error = -1,
|
|
input_processing = 0,
|
|
input_ok = 1,
|
|
input_signalled = 2,
|
|
input_winch = 3
|
|
};
|
|
typedef cons_handle_set_t handle_set_t;
|
|
HANDLE thread_sync_event;
|
|
private:
|
|
static const unsigned MAX_WRITE_CHARS;
|
|
static console_state *shared_console_info[MAX_CONS_DEV + 1];
|
|
static bool invisible_console;
|
|
HANDLE input_mutex, output_mutex;
|
|
handle_set_t handle_set;
|
|
_minor_t unit;
|
|
|
|
/* Used when we encounter a truncated multi-byte sequence. The
|
|
lead bytes are stored here and revisited in the next write call. */
|
|
struct {
|
|
int len;
|
|
unsigned char buf[4]; /* Max len of valid UTF-8 sequence. */
|
|
} trunc_buf;
|
|
PWCHAR write_buf;
|
|
|
|
/* Output calls */
|
|
void set_default_attr ();
|
|
|
|
void scroll_buffer (int, int, int, int, int, int);
|
|
void scroll_buffer_screen (int, int, int, int, int, int);
|
|
void clear_screen (cltype, cltype, cltype, cltype);
|
|
void cursor_set (bool, int, int);
|
|
void cursor_get (int *, int *);
|
|
void cursor_rel (int, int);
|
|
inline void write_replacement_char ();
|
|
inline bool write_console (PWCHAR, DWORD, DWORD&);
|
|
const unsigned char *write_normal (unsigned const char*, unsigned const char *);
|
|
void char_command (char);
|
|
bool set_raw_win32_keyboard_mode (bool);
|
|
void set_console_title (char *);
|
|
|
|
/* Input calls */
|
|
int igncr_enabled ();
|
|
void set_cursor_maybe ();
|
|
static bool create_invisible_console_workaround (bool force);
|
|
static console_state *open_shared_console (HWND, HANDLE&, bool&);
|
|
static void fix_tab_position (HANDLE h, pid_t owner);
|
|
|
|
/* console mode calls */
|
|
const handle_set_t *get_handle_set (void) {return &handle_set;}
|
|
static void set_input_mode (tty::cons_mode m, const termios *t,
|
|
const handle_set_t *p);
|
|
static void set_output_mode (tty::cons_mode m, const termios *t,
|
|
const handle_set_t *p);
|
|
|
|
static BOOL CALLBACK enum_windows (HWND hw, LPARAM lp);
|
|
|
|
public:
|
|
pid_t tc_getpgid ()
|
|
{
|
|
return shared_console_info[unit] ?
|
|
shared_console_info[unit]->tty_min_state.getpgid () : 0;
|
|
}
|
|
fhandler_console (fh_devices);
|
|
static console_state *open_shared_console (HWND hw, HANDLE& h)
|
|
{
|
|
bool createit = false;
|
|
return open_shared_console (hw, h, createit);
|
|
}
|
|
|
|
fhandler_console* is_console () { return this; }
|
|
|
|
bool use_archetype () const {return true;}
|
|
|
|
int open (int flags, mode_t mode);
|
|
bool open_setup (int flags);
|
|
void post_open_setup (int fd);
|
|
int dup (fhandler_base *, int);
|
|
|
|
void read (void *ptr, size_t& len);
|
|
ssize_t write (const void *ptr, size_t len);
|
|
void doecho (const void *str, DWORD len);
|
|
int close ();
|
|
static bool exists ()
|
|
{
|
|
acquire_attach_mutex (mutex_timeout);
|
|
UINT cp = GetConsoleCP ();
|
|
release_attach_mutex ();
|
|
return !!cp;
|
|
}
|
|
|
|
int tcflush (int);
|
|
int tcsetattr (int a, const struct termios *t);
|
|
int tcgetattr (struct termios *t);
|
|
|
|
int ioctl (unsigned int cmd, void *);
|
|
int init (HANDLE, DWORD, mode_t);
|
|
bool mouse_aware (MOUSE_EVENT_RECORD& mouse_event);
|
|
bool focus_aware () {return shared_console_info[unit]->con.use_focus;}
|
|
bool get_cons_readahead_valid ()
|
|
{
|
|
acquire_input_mutex (INFINITE);
|
|
bool ret = shared_console_info[unit]->con.cons_rapoi != NULL &&
|
|
*shared_console_info[unit]->con.cons_rapoi;
|
|
release_input_mutex ();
|
|
return ret;
|
|
}
|
|
|
|
select_record *select_read (select_stuff *);
|
|
select_record *select_write (select_stuff *);
|
|
select_record *select_except (select_stuff *);
|
|
void fixup_after_fork_exec (bool);
|
|
void fixup_after_exec () {fixup_after_fork_exec (true);}
|
|
void fixup_after_fork (HANDLE) {fixup_after_fork_exec (false);}
|
|
void set_close_on_exec (bool val);
|
|
bool send_winch_maybe ();
|
|
void setup ();
|
|
bool set_unit ();
|
|
static bool need_invisible (bool force = false);
|
|
static void free_console ();
|
|
static const char *get_nonascii_key (INPUT_RECORD& input_rec, char *);
|
|
|
|
fhandler_console (void *) {}
|
|
|
|
void copy_from (fhandler_base *x)
|
|
{
|
|
pc.free_strings ();
|
|
dev_t via = this->dev_referred_via; /* Do not copy dev_referred_via */
|
|
*this = *reinterpret_cast<fhandler_console *> (x);
|
|
this->dev_referred_via = via;
|
|
_copy_from_reset_helper ();
|
|
}
|
|
|
|
fhandler_console *clone (cygheap_types malloc_type = HEAP_FHANDLER)
|
|
{
|
|
void *ptr = (void *) ccalloc (malloc_type, 1, sizeof (fhandler_console));
|
|
fhandler_console *fh = new (ptr) fhandler_console (ptr);
|
|
fh->copy_from (this);
|
|
return fh;
|
|
}
|
|
input_states process_input_message ();
|
|
bg_check_types bg_check (int sig, bool dontsignal = false);
|
|
void setup_io_mutex (void);
|
|
DWORD __acquire_input_mutex (const char *fn, int ln, DWORD ms);
|
|
void __release_input_mutex (const char *fn, int ln);
|
|
DWORD __acquire_output_mutex (const char *fn, int ln, DWORD ms);
|
|
void __release_output_mutex (const char *fn, int ln);
|
|
void acquire_input_mutex_if_necessary (DWORD ms)
|
|
{
|
|
acquire_input_mutex (ms);
|
|
}
|
|
void release_input_mutex_if_necessary (void)
|
|
{
|
|
release_input_mutex ();
|
|
}
|
|
|
|
char *&rabuf ();
|
|
size_t &ralen ();
|
|
size_t &raixget ();
|
|
size_t &raixput ();
|
|
size_t &rabuflen ();
|
|
|
|
void get_duplicated_handle_set (handle_set_t *p);
|
|
static void close_handle_set (handle_set_t *p);
|
|
|
|
static void cons_master_thread (handle_set_t *p, tty *ttyp);
|
|
void setup_for_non_cygwin_app ();
|
|
static void cleanup_for_non_cygwin_app (handle_set_t *p);
|
|
static void set_console_mode_to_native ();
|
|
bool need_console_handler ();
|
|
static void set_disable_master_thread (bool x, fhandler_console *cons = NULL);
|
|
static DWORD attach_console (pid_t, bool *err = NULL);
|
|
static void detach_console (DWORD, pid_t);
|
|
pid_t get_owner ();
|
|
void wpbuf_put (char c);
|
|
void wpbuf_send ();
|
|
int fstat (struct stat *buf);
|
|
|
|
class console_unit
|
|
{
|
|
int n;
|
|
unsigned long bitmask;
|
|
console_state *shared_console_info;
|
|
public:
|
|
operator console_state * () const {return shared_console_info;}
|
|
operator unsigned long () const {return n == CONS_LIST_USED ? bitmask : n;}
|
|
console_unit (int);
|
|
friend BOOL CALLBACK fhandler_console::enum_windows (HWND, LPARAM);
|
|
};
|
|
|
|
friend tty_min * tty_list::get_cttyp ();
|
|
};
|
|
|
|
class fhandler_pty_common: public fhandler_termios
|
|
{
|
|
public:
|
|
fhandler_pty_common ()
|
|
: fhandler_termios (),
|
|
output_mutex (NULL), input_mutex (NULL), pipe_sw_mutex (NULL),
|
|
input_available_event (NULL)
|
|
{
|
|
pc.file_attributes (FILE_ATTRIBUTE_NORMAL);
|
|
}
|
|
static const unsigned pipesize = 128 * 1024;
|
|
HANDLE output_mutex, input_mutex, pipe_sw_mutex;
|
|
HANDLE input_available_event;
|
|
|
|
bool use_archetype () const {return true;}
|
|
DWORD __acquire_output_mutex (const char *fn, int ln, DWORD ms);
|
|
void __release_output_mutex (const char *fn, int ln);
|
|
|
|
int close ();
|
|
off_t lseek (off_t, int);
|
|
bool bytes_available (DWORD& n);
|
|
void set_close_on_exec (bool val);
|
|
select_record *select_read (select_stuff *);
|
|
select_record *select_write (select_stuff *);
|
|
select_record *select_except (select_stuff *);
|
|
|
|
fhandler_pty_common (void *) {}
|
|
|
|
virtual void copy_from (fhandler_base *x)
|
|
{
|
|
pc.free_strings ();
|
|
*this = *reinterpret_cast<fhandler_pty_common *> (x);
|
|
_copy_from_reset_helper ();
|
|
}
|
|
|
|
virtual fhandler_pty_common *clone (cygheap_types malloc_type = HEAP_FHANDLER)
|
|
{
|
|
void *ptr = (void *) ccalloc (malloc_type, 1, sizeof (fhandler_pty_common));
|
|
fhandler_pty_common *fh = new (ptr) fhandler_pty_common (ptr);
|
|
fh->copy_from (this);
|
|
return fh;
|
|
}
|
|
|
|
void resize_pseudo_console (struct winsize *);
|
|
static DWORD get_console_process_id (DWORD pid, bool match,
|
|
bool cygwin = false,
|
|
bool stub_only = false,
|
|
bool nat = false);
|
|
bool to_be_read_from_nat_pipe (void);
|
|
static DWORD attach_console_temporarily (DWORD target_pid);
|
|
static void resume_from_temporarily_attach (DWORD resume_pid);
|
|
|
|
protected:
|
|
static BOOL process_opost_output (HANDLE h, const void *ptr, ssize_t& len,
|
|
bool is_echo, tty *ttyp,
|
|
bool is_nonblocking);
|
|
};
|
|
|
|
class fhandler_pty_slave: public fhandler_pty_common
|
|
{
|
|
HANDLE inuse; // used to indicate that a tty is in use
|
|
HANDLE output_handle_nat, io_handle_nat;
|
|
HANDLE slave_reading;
|
|
LONG num_reader;
|
|
|
|
/* Helper functions for fchmod and fchown. */
|
|
bool fch_open_handles (bool chown);
|
|
int fch_set_sd (security_descriptor &sd, bool chown);
|
|
void fch_close_handles ();
|
|
|
|
public:
|
|
pid_t tc_getpgid () { return _tc ? _tc->pgid : 0; }
|
|
|
|
typedef ptys_handle_set_t handle_set_t;
|
|
|
|
/* Constructor */
|
|
fhandler_pty_slave (int, dev_t via = 0);
|
|
|
|
void set_output_handle_nat (HANDLE h) { output_handle_nat = h; }
|
|
HANDLE& get_output_handle_nat () { return output_handle_nat; }
|
|
void set_handle_nat (HANDLE h) { io_handle_nat = h; }
|
|
HANDLE& get_handle_nat () { return io_handle_nat; }
|
|
|
|
int open (int flags, mode_t mode = 0);
|
|
bool open_setup (int flags);
|
|
ssize_t write (const void *ptr, size_t len);
|
|
void read (void *ptr, size_t& len);
|
|
int init (HANDLE, DWORD, mode_t);
|
|
|
|
int tcsetattr (int a, const struct termios *t);
|
|
int tcgetattr (struct termios *t);
|
|
int tcflush (int);
|
|
int ioctl (unsigned int cmd, void *);
|
|
int close ();
|
|
void cleanup ();
|
|
int dup (fhandler_base *child, int);
|
|
void fixup_after_fork (HANDLE parent);
|
|
void fixup_after_exec ();
|
|
|
|
select_record *select_read (select_stuff *);
|
|
select_record *select_write (select_stuff *);
|
|
select_record *select_except (select_stuff *);
|
|
bg_check_types bg_check (int sig, bool dontsignal = false);
|
|
virtual char const *ttyname () { return pc.dev.name (); }
|
|
int fstat (struct stat *buf);
|
|
int facl (int, int, struct acl *);
|
|
int fchmod (mode_t mode);
|
|
int fchown (uid_t uid, gid_t gid);
|
|
|
|
fhandler_pty_slave (void *) {}
|
|
|
|
void copy_from (fhandler_base *x)
|
|
{
|
|
pc.free_strings ();
|
|
dev_t via = this->dev_referred_via; /* Do not copy dev_referred_via */
|
|
*this = *reinterpret_cast<fhandler_pty_slave *> (x);
|
|
this->dev_referred_via = via;
|
|
_copy_from_reset_helper ();
|
|
}
|
|
|
|
fhandler_pty_slave *clone (cygheap_types malloc_type = HEAP_FHANDLER)
|
|
{
|
|
void *ptr = (void *) ccalloc (malloc_type, 1, sizeof (fhandler_pty_slave));
|
|
fhandler_pty_slave *fh = new (ptr) fhandler_pty_slave (ptr);
|
|
fh->copy_from (this);
|
|
return fh;
|
|
}
|
|
bool setup_pseudoconsole ();
|
|
static DWORD get_winpid_to_hand_over (tty *ttyp, DWORD force_switch_to);
|
|
static void close_pseudoconsole (tty *ttyp, DWORD force_switch_to = 0);
|
|
static void hand_over_only (tty *ttyp, DWORD force_switch_to = 0);
|
|
bool term_has_pcon_cap (const WCHAR *env);
|
|
void set_switch_to_nat_pipe (void);
|
|
void reset_switch_to_nat_pipe (void);
|
|
void mask_switch_to_nat_pipe (bool mask, bool xfer);
|
|
void setup_locale (void);
|
|
void create_invisible_console (void);
|
|
static void transfer_input (tty::xfer_dir dir, HANDLE from, tty *ttyp,
|
|
HANDLE input_available_event);
|
|
HANDLE get_input_available_event (void) { return input_available_event; }
|
|
bool pcon_activated (void) { return get_ttyp ()->pcon_activated; }
|
|
void cleanup_before_exit ();
|
|
void get_duplicated_handle_set (handle_set_t *p);
|
|
static void close_handle_set (handle_set_t *p);
|
|
void setup_for_non_cygwin_app (bool nopcon, const WCHAR *envblock,
|
|
bool stdin_is_ptys);
|
|
static void cleanup_for_non_cygwin_app (handle_set_t *p, tty *ttyp,
|
|
bool stdin_is_ptys,
|
|
DWORD force_switch_to = 0);
|
|
void setpgid_aux (pid_t pid);
|
|
static void release_ownership_of_nat_pipe (tty *ttyp, fhandler_termios *fh);
|
|
};
|
|
|
|
#define __ptsname(buf, unit) __small_sprintf ((buf), "/dev/pty%d", (unit))
|
|
class fhandler_pty_master: public fhandler_pty_common
|
|
{
|
|
public:
|
|
/* Parameter set for the static function pty_master_thread() */
|
|
struct master_thread_param_t {
|
|
HANDLE from_master_nat;
|
|
HANDLE from_master;
|
|
HANDLE to_master_nat;
|
|
HANDLE to_master;
|
|
HANDLE to_slave_nat;
|
|
HANDLE to_slave;
|
|
HANDLE master_ctl;
|
|
HANDLE input_available_event;
|
|
};
|
|
/* Parameter set for the static function pty_master_fwd_thread() */
|
|
struct master_fwd_thread_param_t {
|
|
HANDLE to_master;
|
|
HANDLE from_slave_nat;
|
|
HANDLE output_mutex;
|
|
tty *ttyp;
|
|
};
|
|
private:
|
|
int pktmode; // non-zero if pty in a packet mode.
|
|
HANDLE master_ctl; // Control socket for handle duplication
|
|
cygthread *master_thread; // Master control thread
|
|
HANDLE from_master_nat, to_master_nat, from_slave_nat, to_slave_nat;
|
|
HANDLE echo_r, echo_w;
|
|
DWORD dwProcessId; // Owner of master handles
|
|
HANDLE to_master, from_master;
|
|
cygthread *master_fwd_thread; // Master forwarding thread
|
|
HANDLE thread_param_copied_event;
|
|
HANDLE helper_goodbye;
|
|
HANDLE helper_h_process;
|
|
|
|
public:
|
|
HANDLE get_echo_handle () const { return echo_r; }
|
|
/* Constructor */
|
|
fhandler_pty_master (int, dev_t via = 0);
|
|
|
|
static DWORD pty_master_thread (const master_thread_param_t *p);
|
|
static DWORD pty_master_fwd_thread (const master_fwd_thread_param_t *p);
|
|
int process_slave_output (char *buf, size_t len, int pktmode_on);
|
|
void doecho (const void *str, DWORD len);
|
|
int accept_input ();
|
|
int open (int flags, mode_t mode = 0);
|
|
bool open_setup (int flags);
|
|
ssize_t write (const void *ptr, size_t len);
|
|
void read (void *ptr, size_t& len);
|
|
int close ();
|
|
void cleanup ();
|
|
|
|
int tcsetattr (int a, const struct termios *t);
|
|
int tcgetattr (struct termios *t);
|
|
int tcflush (int);
|
|
int ioctl (unsigned int cmd, void *);
|
|
|
|
int ptsname_r (char *, size_t);
|
|
|
|
bool hit_eof ();
|
|
bool setup ();
|
|
int dup (fhandler_base *, int);
|
|
void fixup_after_fork (HANDLE parent);
|
|
void fixup_after_exec ();
|
|
int tcgetpgrp ();
|
|
void flush_to_slave ();
|
|
void discard_input ();
|
|
void acquire_input_mutex_if_necessary (DWORD ms)
|
|
{
|
|
WaitForSingleObject (input_mutex, ms);
|
|
}
|
|
void release_input_mutex_if_necessary (void)
|
|
{
|
|
ReleaseMutex (input_mutex);
|
|
}
|
|
|
|
fhandler_pty_master (void *) {}
|
|
|
|
void copy_from (fhandler_base *x)
|
|
{
|
|
pc.free_strings ();
|
|
dev_t via = this->dev_referred_via; /* Do not copy dev_referred_via */
|
|
*this = *reinterpret_cast<fhandler_pty_master *> (x);
|
|
this->dev_referred_via = via;
|
|
_copy_from_reset_helper ();
|
|
}
|
|
|
|
fhandler_pty_master *clone (cygheap_types malloc_type = HEAP_FHANDLER)
|
|
{
|
|
void *ptr = (void *) ccalloc (malloc_type, 1, sizeof (fhandler_pty_master));
|
|
fhandler_pty_master *fh = new (ptr) fhandler_pty_master (ptr);
|
|
fh->copy_from (this);
|
|
return fh;
|
|
}
|
|
void get_master_thread_param (master_thread_param_t *p);
|
|
void get_master_fwd_thread_param (master_fwd_thread_param_t *p);
|
|
void set_mask_flusho (bool m) { get_ttyp ()->mask_flusho = m; }
|
|
bool need_send_ctrl_c_event ();
|
|
};
|
|
|
|
class fhandler_dev_null: public fhandler_base
|
|
{
|
|
public:
|
|
fhandler_dev_null ();
|
|
|
|
select_record *select_read (select_stuff *);
|
|
select_record *select_write (select_stuff *);
|
|
select_record *select_except (select_stuff *);
|
|
|
|
fhandler_dev_null (void *) {}
|
|
|
|
void copy_from (fhandler_base *x)
|
|
{
|
|
pc.free_strings ();
|
|
*this = *reinterpret_cast<fhandler_dev_null *> (x);
|
|
_copy_from_reset_helper ();
|
|
}
|
|
|
|
fhandler_dev_null *clone (cygheap_types malloc_type = HEAP_FHANDLER)
|
|
{
|
|
void *ptr = (void *) ccalloc (malloc_type, 1, sizeof (fhandler_dev_null));
|
|
fhandler_dev_null *fh = new (ptr) fhandler_dev_null (ptr);
|
|
fh->copy_from (this);
|
|
return fh;
|
|
}
|
|
|
|
ssize_t write (const void *ptr, size_t len);
|
|
};
|
|
|
|
class fhandler_dev_zero: public fhandler_base
|
|
{
|
|
public:
|
|
fhandler_dev_zero ();
|
|
ssize_t write (const void *ptr, size_t len);
|
|
void read (void *ptr, size_t& len);
|
|
off_t lseek (off_t, int) { return 0; }
|
|
|
|
virtual HANDLE mmap (caddr_t *addr, size_t len, int prot,
|
|
int flags, off_t off);
|
|
virtual int munmap (HANDLE h, caddr_t addr, size_t len);
|
|
virtual int msync (HANDLE h, caddr_t addr, size_t len, int flags);
|
|
virtual bool fixup_mmap_after_fork (HANDLE h, int prot, int flags,
|
|
off_t offset, SIZE_T size,
|
|
void *address);
|
|
|
|
fhandler_dev_zero (void *) {}
|
|
|
|
void copy_from (fhandler_base *x)
|
|
{
|
|
pc.free_strings ();
|
|
*this = *reinterpret_cast<fhandler_dev_zero *> (x);
|
|
_copy_from_reset_helper ();
|
|
}
|
|
|
|
fhandler_dev_zero *clone (cygheap_types malloc_type = HEAP_FHANDLER)
|
|
{
|
|
void *ptr = (void *) ccalloc (malloc_type, 1, sizeof (fhandler_dev_zero));
|
|
fhandler_dev_zero *fh = new (ptr) fhandler_dev_zero (ptr);
|
|
fh->copy_from (this);
|
|
return fh;
|
|
}
|
|
};
|
|
|
|
class fhandler_dev_random: public fhandler_base
|
|
{
|
|
protected:
|
|
uint32_t pseudo;
|
|
|
|
int pseudo_write (const void *ptr, size_t len);
|
|
int pseudo_read (void *ptr, size_t len);
|
|
|
|
public:
|
|
ssize_t write (const void *ptr, size_t len);
|
|
void read (void *ptr, size_t& len);
|
|
off_t lseek (off_t, int) { return 0; }
|
|
|
|
fhandler_dev_random () : fhandler_base () {}
|
|
fhandler_dev_random (void *) {}
|
|
|
|
void copy_from (fhandler_base *x)
|
|
{
|
|
pc.free_strings ();
|
|
*this = *reinterpret_cast<fhandler_dev_random *> (x);
|
|
_copy_from_reset_helper ();
|
|
}
|
|
|
|
fhandler_dev_random *clone (cygheap_types malloc_type = HEAP_FHANDLER)
|
|
{
|
|
void *ptr = (void *) ccalloc (malloc_type, 1, sizeof (fhandler_dev_random));
|
|
fhandler_dev_random *fh = new (ptr) fhandler_dev_random (ptr);
|
|
fh->copy_from (this);
|
|
return fh;
|
|
}
|
|
};
|
|
|
|
class fhandler_dev_clipboard: public fhandler_base
|
|
{
|
|
UINT cygnativeformat;
|
|
off_t pos;
|
|
void *membuffer;
|
|
size_t msize;
|
|
int set_clipboard (const void *buf, size_t len);
|
|
|
|
public:
|
|
fhandler_dev_clipboard ();
|
|
int is_windows () { return 1; }
|
|
int fstat (struct stat *buf);
|
|
ssize_t write (const void *ptr, size_t len);
|
|
void read (void *ptr, size_t& len);
|
|
off_t lseek (off_t offset, int whence);
|
|
int close ();
|
|
|
|
int dup (fhandler_base *child, int);
|
|
void fixup_after_exec ();
|
|
|
|
fhandler_dev_clipboard (void *) {}
|
|
|
|
void copy_from (fhandler_base *x)
|
|
{
|
|
pc.free_strings ();
|
|
*this = *reinterpret_cast<fhandler_dev_clipboard *> (x);
|
|
_copy_from_reset_helper ();
|
|
}
|
|
|
|
fhandler_dev_clipboard *clone (cygheap_types malloc_type = HEAP_FHANDLER)
|
|
{
|
|
void *ptr = (void *) ccalloc (malloc_type, 1, sizeof (fhandler_dev_clipboard));
|
|
fhandler_dev_clipboard *fh = new (ptr) fhandler_dev_clipboard (ptr);
|
|
fh->copy_from (this);
|
|
return fh;
|
|
}
|
|
};
|
|
|
|
class fhandler_windows: public fhandler_base
|
|
{
|
|
private:
|
|
HWND hWnd_; // the window whose messages are to be retrieved by read() call
|
|
int method_; // write method (Post or Send)
|
|
public:
|
|
fhandler_windows ();
|
|
int is_windows () { return 1; }
|
|
HWND get_hwnd () { return hWnd_; }
|
|
int open (int flags, mode_t mode = 0);
|
|
ssize_t write (const void *ptr, size_t len);
|
|
void read (void *ptr, size_t& len);
|
|
int ioctl (unsigned int cmd, void *);
|
|
off_t lseek (off_t, int) { return 0; }
|
|
int close () { return 0; }
|
|
|
|
select_record *select_read (select_stuff *);
|
|
select_record *select_write (select_stuff *);
|
|
select_record *select_except (select_stuff *);
|
|
|
|
fhandler_windows (void *) {}
|
|
|
|
void copy_from (fhandler_base *x)
|
|
{
|
|
pc.free_strings ();
|
|
*this = *reinterpret_cast<fhandler_windows *> (x);
|
|
_copy_from_reset_helper ();
|
|
}
|
|
|
|
fhandler_windows *clone (cygheap_types malloc_type = HEAP_FHANDLER)
|
|
{
|
|
void *ptr = (void *) ccalloc (malloc_type, 1, sizeof (fhandler_windows));
|
|
fhandler_windows *fh = new (ptr) fhandler_windows (ptr);
|
|
fh->copy_from (this);
|
|
return fh;
|
|
}
|
|
};
|
|
|
|
class fhandler_dev_mixer: public fhandler_base
|
|
{
|
|
private:
|
|
int rec_source;
|
|
public:
|
|
fhandler_dev_mixer () {}
|
|
int open (int, mode_t mode = 0);
|
|
ssize_t write (const void *, size_t);
|
|
void read (void *, size_t&);
|
|
int ioctl (unsigned int, void *);
|
|
|
|
fhandler_dev_mixer (void *) {}
|
|
|
|
void copy_from (fhandler_base *x)
|
|
{
|
|
pc.free_strings ();
|
|
*this = *reinterpret_cast<fhandler_dev_mixer *> (x);
|
|
_copy_from_reset_helper ();
|
|
}
|
|
|
|
fhandler_dev_mixer *clone (cygheap_types malloc_type = HEAP_FHANDLER)
|
|
{
|
|
void *ptr = (void *) ccalloc (malloc_type, 1, sizeof (fhandler_dev_mixer));
|
|
fhandler_dev_mixer *fh = new (ptr) fhandler_dev_mixer (ptr);
|
|
fh->copy_from (this);
|
|
return fh;
|
|
}
|
|
};
|
|
|
|
class fhandler_dev_dsp: public fhandler_base
|
|
{
|
|
public:
|
|
class Audio;
|
|
class Audio_out;
|
|
class Audio_in;
|
|
private:
|
|
int audioformat_;
|
|
int audiofreq_;
|
|
int audiobits_;
|
|
int audiochannels_;
|
|
Audio_out *audio_out_;
|
|
Audio_in *audio_in_;
|
|
bool being_closed;
|
|
bool fragment_has_been_set;
|
|
int fragstotal_;
|
|
int fragsize_;
|
|
public:
|
|
fhandler_dev_dsp ();
|
|
fhandler_dev_dsp *base () const {return (fhandler_dev_dsp *)archetype;}
|
|
|
|
int open (int, mode_t mode = 0);
|
|
ssize_t write (const void *, size_t);
|
|
void read (void *, size_t&);
|
|
int ioctl (unsigned int, void *);
|
|
int fcntl (int cmd, intptr_t);
|
|
int close ();
|
|
void fixup_after_fork (HANDLE);
|
|
void fixup_after_exec ();
|
|
|
|
private:
|
|
ssize_t _write (const void *, size_t);
|
|
void _read (void *, size_t&);
|
|
int _ioctl (unsigned int, void *);
|
|
int _fcntl (int cmd, intptr_t);
|
|
void _fixup_after_fork (HANDLE);
|
|
void _fixup_after_exec ();
|
|
|
|
void close_audio_in ();
|
|
void close_audio_out (bool = false);
|
|
|
|
bool _read_ready();
|
|
bool _write_ready();
|
|
|
|
public:
|
|
bool use_archetype () const {return true;}
|
|
|
|
fhandler_dev_dsp (void *) {}
|
|
|
|
void copy_from (fhandler_base *x)
|
|
{
|
|
pc.free_strings ();
|
|
*this = *reinterpret_cast<fhandler_dev_dsp *> (x);
|
|
_copy_from_reset_helper ();
|
|
}
|
|
|
|
fhandler_dev_dsp *clone (cygheap_types malloc_type = HEAP_FHANDLER)
|
|
{
|
|
void *ptr = (void *) ccalloc (malloc_type, 1, sizeof (fhandler_dev_dsp));
|
|
fhandler_dev_dsp *fh = new (ptr) fhandler_dev_dsp (ptr);
|
|
fh->copy_from (this);
|
|
return fh;
|
|
}
|
|
|
|
/* select.cc */
|
|
select_record *select_read (select_stuff *);
|
|
select_record *select_write (select_stuff *);
|
|
select_record *select_except (select_stuff *);
|
|
|
|
bool read_ready ();
|
|
bool write_ready ();
|
|
bool is_closed () { return being_closed; };
|
|
};
|
|
|
|
class fhandler_virtual : public fhandler_base
|
|
{
|
|
protected:
|
|
char *filebuf;
|
|
off_t filesize;
|
|
off_t position;
|
|
int fileid; // unique within each class
|
|
bool diropen;
|
|
public:
|
|
|
|
fhandler_virtual ();
|
|
virtual ~fhandler_virtual();
|
|
|
|
virtual virtual_ftype_t exists();
|
|
DIR *opendir (int fd);
|
|
long telldir (DIR *);
|
|
void seekdir (DIR *, long);
|
|
void rewinddir (DIR *);
|
|
int closedir (DIR *);
|
|
ssize_t write (const void *ptr, size_t len);
|
|
void read (void *ptr, size_t& len);
|
|
off_t lseek (off_t, int);
|
|
int dup (fhandler_base *child, int);
|
|
int open (int flags, mode_t mode = 0);
|
|
int close ();
|
|
int fstatvfs (struct statvfs *buf);
|
|
int fchmod (mode_t mode);
|
|
int fchown (uid_t uid, gid_t gid);
|
|
int facl (int, int, struct acl *);
|
|
virtual bool fill_filebuf ();
|
|
char *get_filebuf () { return filebuf; }
|
|
void fixup_after_exec ();
|
|
|
|
fhandler_virtual (void *) {}
|
|
|
|
virtual void copy_from (fhandler_base *x)
|
|
{
|
|
pc.free_strings ();
|
|
*this = *reinterpret_cast<fhandler_virtual *> (x);
|
|
_copy_from_reset_helper ();
|
|
}
|
|
|
|
virtual fhandler_virtual *clone (cygheap_types malloc_type = HEAP_FHANDLER)
|
|
{
|
|
void *ptr = (void *) ccalloc (malloc_type, 1, sizeof (fhandler_virtual));
|
|
fhandler_virtual *fh = new (ptr) fhandler_virtual (ptr);
|
|
fh->copy_from (this);
|
|
return fh;
|
|
}
|
|
};
|
|
|
|
class fhandler_proc: public fhandler_virtual
|
|
{
|
|
public:
|
|
fhandler_proc ();
|
|
virtual_ftype_t exists();
|
|
DIR *opendir (int fd);
|
|
int closedir (DIR *);
|
|
int readdir (DIR *, dirent *);
|
|
static fh_devices get_proc_fhandler (const char *path);
|
|
|
|
int open (int flags, mode_t mode = 0);
|
|
int fstat (struct stat *buf);
|
|
bool fill_filebuf ();
|
|
|
|
fhandler_proc (void *) {}
|
|
|
|
virtual void copy_from (fhandler_base *x)
|
|
{
|
|
pc.free_strings ();
|
|
*this = *reinterpret_cast<fhandler_proc *> (x);
|
|
_copy_from_reset_helper ();
|
|
}
|
|
|
|
virtual fhandler_proc *clone (cygheap_types malloc_type = HEAP_FHANDLER)
|
|
{
|
|
void *ptr = (void *) ccalloc (malloc_type, 1, sizeof (fhandler_proc));
|
|
fhandler_proc *fh = new (ptr) fhandler_proc (ptr);
|
|
fh->copy_from (this);
|
|
return fh;
|
|
}
|
|
};
|
|
|
|
class fhandler_procsys: public fhandler_virtual
|
|
{
|
|
public:
|
|
fhandler_procsys ();
|
|
virtual_ftype_t exists(struct stat *buf);
|
|
virtual_ftype_t exists();
|
|
DIR *opendir (int fd);
|
|
int readdir (DIR *, dirent *);
|
|
long telldir (DIR *);
|
|
void seekdir (DIR *, long);
|
|
int closedir (DIR *);
|
|
int open (int flags, mode_t mode = 0);
|
|
int close ();
|
|
void read (void *ptr, size_t& len);
|
|
ssize_t write (const void *ptr, size_t len);
|
|
int fstat (struct stat *buf);
|
|
bool fill_filebuf ();
|
|
|
|
fhandler_procsys (void *) {}
|
|
|
|
void copy_from (fhandler_base *x)
|
|
{
|
|
pc.free_strings ();
|
|
*this = *reinterpret_cast<fhandler_procsys *> (x);
|
|
_copy_from_reset_helper ();
|
|
}
|
|
|
|
fhandler_procsys *clone (cygheap_types malloc_type = HEAP_FHANDLER)
|
|
{
|
|
void *ptr = (void *) ccalloc (malloc_type, 1, sizeof (fhandler_procsys));
|
|
fhandler_procsys *fh = new (ptr) fhandler_procsys (ptr);
|
|
fh->copy_from (this);
|
|
return fh;
|
|
}
|
|
};
|
|
|
|
class fhandler_procsysvipc: public fhandler_proc
|
|
{
|
|
pid_t pid;
|
|
public:
|
|
fhandler_procsysvipc ();
|
|
virtual_ftype_t exists();
|
|
int readdir (DIR *, dirent *);
|
|
int open (int flags, mode_t mode = 0);
|
|
int fstat (struct stat *buf);
|
|
bool fill_filebuf ();
|
|
|
|
fhandler_procsysvipc (void *) {}
|
|
|
|
void copy_from (fhandler_base *x)
|
|
{
|
|
pc.free_strings ();
|
|
*this = *reinterpret_cast<fhandler_procsysvipc *> (x);
|
|
_copy_from_reset_helper ();
|
|
}
|
|
|
|
fhandler_procsysvipc *clone (cygheap_types malloc_type = HEAP_FHANDLER)
|
|
{
|
|
void *ptr = (void *) ccalloc (malloc_type, 1, sizeof (fhandler_procsysvipc));
|
|
fhandler_procsysvipc *fh = new (ptr) fhandler_procsysvipc (ptr);
|
|
fh->copy_from (this);
|
|
return fh;
|
|
}
|
|
};
|
|
|
|
class fhandler_netdrive: public fhandler_virtual
|
|
{
|
|
public:
|
|
fhandler_netdrive ();
|
|
virtual_ftype_t exists();
|
|
DIR *opendir (int);
|
|
int readdir (DIR *, dirent *);
|
|
void seekdir (DIR *, long);
|
|
void rewinddir (DIR *);
|
|
int closedir (DIR *);
|
|
int open (int flags, mode_t mode = 0);
|
|
int close ();
|
|
int fstat (struct stat *buf);
|
|
|
|
fhandler_netdrive (void *) {}
|
|
|
|
void copy_from (fhandler_base *x)
|
|
{
|
|
pc.free_strings ();
|
|
*this = *reinterpret_cast<fhandler_netdrive *> (x);
|
|
_copy_from_reset_helper ();
|
|
}
|
|
|
|
fhandler_netdrive *clone (cygheap_types malloc_type = HEAP_FHANDLER)
|
|
{
|
|
void *ptr = (void *) ccalloc (malloc_type, 1, sizeof (fhandler_netdrive));
|
|
fhandler_netdrive *fh = new (ptr) fhandler_netdrive (ptr);
|
|
fh->copy_from (this);
|
|
return fh;
|
|
}
|
|
};
|
|
|
|
class fhandler_registry: public fhandler_proc
|
|
{
|
|
private:
|
|
wchar_t *value_name;
|
|
DWORD wow64;
|
|
int prefix_len;
|
|
public:
|
|
fhandler_registry ();
|
|
void set_name (path_conv &pc);
|
|
virtual_ftype_t exists();
|
|
DIR *opendir (int fd);
|
|
int readdir (DIR *, dirent *);
|
|
long telldir (DIR *);
|
|
void seekdir (DIR *, long);
|
|
void rewinddir (DIR *);
|
|
int closedir (DIR *);
|
|
|
|
int open (int flags, mode_t mode = 0);
|
|
int fstat (struct stat *buf);
|
|
bool fill_filebuf ();
|
|
int close ();
|
|
int dup (fhandler_base *child, int);
|
|
|
|
fhandler_registry (void *) {}
|
|
|
|
void copy_from (fhandler_base *x)
|
|
{
|
|
pc.free_strings ();
|
|
*this = *reinterpret_cast<fhandler_registry *> (x);
|
|
_copy_from_reset_helper ();
|
|
}
|
|
|
|
fhandler_registry *clone (cygheap_types malloc_type = HEAP_FHANDLER)
|
|
{
|
|
void *ptr = (void *) ccalloc (malloc_type, 1, sizeof (fhandler_registry));
|
|
fhandler_registry *fh = new (ptr) fhandler_registry (ptr);
|
|
fh->copy_from (this);
|
|
return fh;
|
|
}
|
|
};
|
|
|
|
class pinfo;
|
|
class fhandler_process: public fhandler_proc
|
|
{
|
|
protected:
|
|
pid_t pid;
|
|
virtual_ftype_t fd_type;
|
|
public:
|
|
fhandler_process ();
|
|
virtual_ftype_t exists();
|
|
DIR *opendir (int fd);
|
|
int closedir (DIR *);
|
|
int readdir (DIR *, dirent *);
|
|
int open (int flags, mode_t mode = 0);
|
|
int fstat (struct stat *buf);
|
|
bool fill_filebuf ();
|
|
|
|
fhandler_process (void *) {}
|
|
|
|
void copy_from (fhandler_base *x)
|
|
{
|
|
pc.free_strings ();
|
|
*this = *reinterpret_cast<fhandler_process *> (x);
|
|
_copy_from_reset_helper ();
|
|
}
|
|
|
|
fhandler_process *clone (cygheap_types malloc_type = HEAP_FHANDLER)
|
|
{
|
|
void *ptr = (void *) ccalloc (malloc_type, 1, sizeof (fhandler_process));
|
|
fhandler_process *fh = new (ptr) fhandler_process (ptr);
|
|
fh->copy_from (this);
|
|
return fh;
|
|
}
|
|
};
|
|
|
|
class fhandler_process_fd : public fhandler_process
|
|
{
|
|
fhandler_base *fetch_fh (HANDLE &, uint32_t);
|
|
|
|
public:
|
|
fhandler_process_fd () : fhandler_process () {}
|
|
fhandler_process_fd (void *) {}
|
|
|
|
virtual fhandler_base *fd_reopen (int, mode_t);
|
|
int fstat (struct stat *buf);
|
|
virtual int link (const char *);
|
|
|
|
void copy_from (fhandler_base *x)
|
|
{
|
|
pc.free_strings ();
|
|
*this = *reinterpret_cast<fhandler_process_fd *> (x);
|
|
_copy_from_reset_helper ();
|
|
}
|
|
|
|
fhandler_process_fd *clone (cygheap_types malloc_type = HEAP_FHANDLER)
|
|
{
|
|
void *ptr = (void *) ccalloc (malloc_type, 1, sizeof (fhandler_process_fd));
|
|
fhandler_process_fd *fh = new (ptr) fhandler_process_fd (ptr);
|
|
fh->copy_from (this);
|
|
return fh;
|
|
}
|
|
};
|
|
|
|
class fhandler_procnet: public fhandler_proc
|
|
{
|
|
pid_t pid;
|
|
public:
|
|
fhandler_procnet ();
|
|
fhandler_procnet (void *) {}
|
|
virtual_ftype_t exists();
|
|
int readdir (DIR *, dirent *);
|
|
int open (int flags, mode_t mode = 0);
|
|
int fstat (struct stat *buf);
|
|
bool fill_filebuf ();
|
|
|
|
void copy_from (fhandler_base *x)
|
|
{
|
|
pc.free_strings ();
|
|
*this = *reinterpret_cast<fhandler_procnet *> (x);
|
|
_copy_from_reset_helper ();
|
|
}
|
|
|
|
fhandler_procnet *clone (cygheap_types malloc_type = HEAP_FHANDLER)
|
|
{
|
|
void *ptr = (void *) ccalloc (malloc_type, 1, sizeof (fhandler_procnet));
|
|
fhandler_procnet *fh = new (ptr) fhandler_procnet (ptr);
|
|
fh->copy_from (this);
|
|
return fh;
|
|
}
|
|
};
|
|
|
|
class fhandler_dev_disk: public fhandler_virtual
|
|
{
|
|
public:
|
|
enum dev_disk_location {
|
|
unknown_loc, invalid_loc, disk_dir,
|
|
/* Keep these in sync with dev_disk.cc:by_dir_names array: */
|
|
disk_by_drive, disk_by_id, disk_by_label,
|
|
disk_by_partuuid, disk_by_uuid, disk_by_voluuid
|
|
};
|
|
|
|
private:
|
|
dev_disk_location loc;
|
|
bool loc_is_link;
|
|
|
|
void init_dev_disk ();
|
|
void ensure_inited ()
|
|
{
|
|
if (loc == unknown_loc)
|
|
init_dev_disk ();
|
|
}
|
|
|
|
int drive_from_id;
|
|
int part_from_id;
|
|
|
|
public:
|
|
fhandler_dev_disk ();
|
|
fhandler_dev_disk (void *) {}
|
|
virtual_ftype_t exists();
|
|
DIR *opendir (int fd);
|
|
int closedir (DIR *);
|
|
int readdir (DIR *, dirent *);
|
|
int open (int flags, mode_t mode = 0);
|
|
int fstat (struct stat *buf);
|
|
bool fill_filebuf ();
|
|
|
|
void copy_from (fhandler_base *x)
|
|
{
|
|
pc.free_strings ();
|
|
*this = *reinterpret_cast<fhandler_dev_disk *> (x);
|
|
_copy_from_reset_helper ();
|
|
}
|
|
|
|
fhandler_dev_disk *clone (cygheap_types malloc_type = HEAP_FHANDLER)
|
|
{
|
|
void *ptr = (void *) ccalloc (malloc_type, 1, sizeof (fhandler_dev_disk));
|
|
fhandler_dev_disk *fh = new (ptr) fhandler_dev_disk (ptr);
|
|
fh->copy_from (this);
|
|
return fh;
|
|
}
|
|
};
|
|
|
|
class fhandler_dev_fd: public fhandler_virtual
|
|
{
|
|
public:
|
|
fhandler_dev_fd ();
|
|
virtual_ftype_t exists();
|
|
|
|
int fstat (struct stat *buf);
|
|
bool fill_filebuf ();
|
|
|
|
fhandler_dev_fd (void *) {}
|
|
|
|
virtual void copy_from (fhandler_base *x)
|
|
{
|
|
pc.free_strings ();
|
|
*this = *reinterpret_cast<fhandler_dev_fd *> (x);
|
|
_copy_from_reset_helper ();
|
|
}
|
|
|
|
virtual fhandler_dev_fd *clone (cygheap_types malloc_type = HEAP_FHANDLER)
|
|
{
|
|
void *ptr = (void *) ccalloc (malloc_type, 1, sizeof (fhandler_dev_fd));
|
|
fhandler_dev_fd *fh = new (ptr) fhandler_dev_fd (ptr);
|
|
fh->copy_from (this);
|
|
return fh;
|
|
}
|
|
};
|
|
|
|
class fhandler_signalfd : public fhandler_base
|
|
{
|
|
sigset_t sigset;
|
|
|
|
public:
|
|
fhandler_signalfd ();
|
|
fhandler_signalfd (void *) {}
|
|
|
|
fhandler_signalfd *is_signalfd () { return this; }
|
|
|
|
char *get_proc_fd_name (char *buf);
|
|
|
|
int signalfd (const sigset_t *mask, int flags);
|
|
int fstat (struct stat *buf);
|
|
void read (void *ptr, size_t& len);
|
|
ssize_t write (const void *, size_t);
|
|
|
|
int poll ();
|
|
inline sigset_t get_sigset () const { return sigset; }
|
|
|
|
select_record *select_read (select_stuff *);
|
|
select_record *select_write (select_stuff *);
|
|
select_record *select_except (select_stuff *);
|
|
|
|
void copy_from (fhandler_base *x)
|
|
{
|
|
pc.free_strings ();
|
|
*this = *reinterpret_cast<fhandler_signalfd *> (x);
|
|
_copy_from_reset_helper ();
|
|
}
|
|
|
|
fhandler_signalfd *clone (cygheap_types malloc_type = HEAP_FHANDLER)
|
|
{
|
|
void *ptr = (void *) ccalloc (malloc_type, 1, sizeof (fhandler_signalfd));
|
|
fhandler_signalfd *fh = new (ptr) fhandler_signalfd (ptr);
|
|
fh->copy_from (this);
|
|
return fh;
|
|
}
|
|
};
|
|
|
|
class fhandler_timerfd : public fhandler_base
|
|
{
|
|
timer_t timerid;
|
|
|
|
public:
|
|
fhandler_timerfd ();
|
|
fhandler_timerfd (void *) {}
|
|
~fhandler_timerfd () {}
|
|
|
|
fhandler_timerfd *is_timerfd () { return this; }
|
|
|
|
char *get_proc_fd_name (char *buf);
|
|
|
|
int timerfd (clockid_t clock_id, int flags);
|
|
int settime (int flags, const struct itimerspec *value,
|
|
struct itimerspec *ovalue);
|
|
int gettime (struct itimerspec *ovalue);
|
|
|
|
int fstat (struct stat *buf);
|
|
void read (void *ptr, size_t& len);
|
|
ssize_t write (const void *, size_t);
|
|
int dup (fhandler_base *child, int);
|
|
int ioctl (unsigned int, void *);
|
|
int close ();
|
|
|
|
HANDLE get_timerfd_handle ();
|
|
|
|
void fixup_after_fork (HANDLE);
|
|
void fixup_after_exec ();
|
|
|
|
select_record *select_read (select_stuff *);
|
|
select_record *select_write (select_stuff *);
|
|
select_record *select_except (select_stuff *);
|
|
|
|
void copy_from (fhandler_base *x)
|
|
{
|
|
pc.free_strings ();
|
|
*this = *reinterpret_cast<fhandler_timerfd *> (x);
|
|
_copy_from_reset_helper ();
|
|
}
|
|
|
|
fhandler_timerfd *clone (cygheap_types malloc_type = HEAP_FHANDLER)
|
|
{
|
|
void *ptr = (void *) ccalloc (malloc_type, 1, sizeof (fhandler_timerfd));
|
|
fhandler_timerfd *fh = new (ptr) fhandler_timerfd (ptr);
|
|
fh->copy_from (this);
|
|
return fh;
|
|
}
|
|
};
|
|
|
|
class fhandler_mqueue: public fhandler_disk_file
|
|
{
|
|
struct mq_info mqi;
|
|
/* Duplicate filebuf usage of fhandler_virtual */
|
|
char *filebuf;
|
|
off_t filesize;
|
|
off_t position;
|
|
|
|
bool valid_path ();
|
|
|
|
struct mq_info *_mqinfo (SIZE_T, mode_t, int, bool);
|
|
|
|
struct mq_info *mqinfo_create (struct mq_attr *, mode_t, int);
|
|
struct mq_info *mqinfo_open (int);
|
|
void mq_open_finish (bool, bool);
|
|
|
|
int _dup (HANDLE, fhandler_mqueue *);
|
|
|
|
bool fill_filebuf ();
|
|
|
|
int mutex_lock (HANDLE, bool);
|
|
int mutex_unlock (HANDLE);
|
|
int cond_timedwait (HANDLE, HANDLE, const struct timespec *);
|
|
void cond_signal (HANDLE);
|
|
|
|
public:
|
|
fhandler_mqueue ();
|
|
fhandler_mqueue (void *) {}
|
|
~fhandler_mqueue ();
|
|
|
|
fhandler_mqueue *is_mqueue () { return this; }
|
|
|
|
char *get_proc_fd_name (char *);
|
|
|
|
int open (int, mode_t);
|
|
int mq_open (int, mode_t, struct mq_attr *);
|
|
int mq_getattr (struct mq_attr *);
|
|
int mq_setattr (const struct mq_attr *, struct mq_attr *);
|
|
int mq_notify (const struct sigevent *);
|
|
int mq_timedsend (const char *, size_t, unsigned int,
|
|
const struct timespec *);
|
|
ssize_t mq_timedrecv (char *, size_t, unsigned int *,
|
|
const struct timespec *);
|
|
|
|
struct mq_info *mqinfo () { return &mqi; }
|
|
|
|
void fixup_after_fork (HANDLE);
|
|
|
|
#define NO_IMPL { set_errno (EPERM); return -1; }
|
|
|
|
ssize_t fgetxattr (const char *, void *, size_t) NO_IMPL;
|
|
int fsetxattr (const char *, const void *, size_t, int) NO_IMPL;
|
|
int fadvise (off_t, off_t, int) NO_IMPL;
|
|
int fallocate (int, off_t, off_t) NO_IMPL;
|
|
int link (const char *) NO_IMPL;
|
|
int mkdir (mode_t) NO_IMPL;
|
|
ssize_t pread (void *, size_t, off_t, void *aio = NULL) NO_IMPL;
|
|
ssize_t pwrite (void *, size_t, off_t, void *aio = NULL) NO_IMPL;
|
|
int lock (int, struct flock *) NO_IMPL;
|
|
int mand_lock (int, struct flock *) NO_IMPL;
|
|
void read (void *, size_t&);
|
|
off_t lseek (off_t, int);
|
|
int fstat (struct stat *);
|
|
int dup (fhandler_base *, int);
|
|
int fcntl (int cmd, intptr_t);
|
|
int ioctl (unsigned int, void *);
|
|
int close ();
|
|
|
|
void copy_from (fhandler_base *x)
|
|
{
|
|
pc.free_strings ();
|
|
*this = *reinterpret_cast<fhandler_mqueue *> (x);
|
|
_copy_from_reset_helper ();
|
|
}
|
|
|
|
fhandler_mqueue *clone (cygheap_types malloc_type = HEAP_FHANDLER)
|
|
{
|
|
void *ptr = (void *) ccalloc (malloc_type, 1, sizeof (fhandler_mqueue));
|
|
fhandler_mqueue *fh = new (ptr) fhandler_mqueue (ptr);
|
|
fh->copy_from (this);
|
|
return fh;
|
|
}
|
|
};
|
|
|
|
struct fhandler_nodevice: public fhandler_base
|
|
{
|
|
fhandler_nodevice ();
|
|
int open (int flags, mode_t mode = 0);
|
|
};
|
|
|
|
#define report_tty_counts(fh, call, use_op) \
|
|
termios_printf ("%s %s, %susecount %d",\
|
|
fh->ttyname (), call,\
|
|
use_op, ((fhandler_pty_slave *) (fh->archetype ?: fh))->usecount);
|
|
|
|
typedef union
|
|
{
|
|
char __base[sizeof (fhandler_base)];
|
|
char __console[sizeof (fhandler_console)];
|
|
char __dev[sizeof (fhandler_dev)];
|
|
char __cygdrive[sizeof (fhandler_cygdrive)];
|
|
char __dev_clipboard[sizeof (fhandler_dev_clipboard)];
|
|
char __dev_dsp[sizeof (fhandler_dev_dsp)];
|
|
char __dev_floppy[sizeof (fhandler_dev_floppy)];
|
|
char __dev_null[sizeof (fhandler_dev_null)];
|
|
char __dev_random[sizeof (fhandler_dev_random)];
|
|
char __dev_raw[sizeof (fhandler_dev_raw)];
|
|
char __dev_tape[sizeof (fhandler_dev_tape)];
|
|
char __dev_zero[sizeof (fhandler_dev_zero)];
|
|
char __dev_disk[sizeof (fhandler_dev_disk)];
|
|
char __dev_fd[sizeof (fhandler_dev_fd)];
|
|
char __disk_file[sizeof (fhandler_disk_file)];
|
|
char __fifo[sizeof (fhandler_fifo)];
|
|
char __netdrive[sizeof (fhandler_netdrive)];
|
|
char __nodevice[sizeof (fhandler_nodevice)];
|
|
char __pipe[sizeof (fhandler_pipe)];
|
|
char __proc[sizeof (fhandler_proc)];
|
|
char __process[sizeof (fhandler_process)];
|
|
char __process_fd[sizeof (fhandler_process_fd)];
|
|
char __procnet[sizeof (fhandler_procnet)];
|
|
char __procsys[sizeof (fhandler_procsys)];
|
|
char __procsysvipc[sizeof (fhandler_procsysvipc)];
|
|
char __pty_master[sizeof (fhandler_pty_master)];
|
|
char __registry[sizeof (fhandler_registry)];
|
|
char __serial[sizeof (fhandler_serial)];
|
|
char __signalfd[sizeof (fhandler_signalfd)];
|
|
char __timerfd[sizeof (fhandler_timerfd)];
|
|
char __mqueue[sizeof (fhandler_mqueue)];
|
|
char __socket_inet[sizeof (fhandler_socket_inet)];
|
|
char __socket_local[sizeof (fhandler_socket_local)];
|
|
#ifdef __WITH_AF_UNIX
|
|
char __socket_unix[sizeof (fhandler_socket_unix)];
|
|
#endif /* __WITH_AF_UNIX */
|
|
char __termios[sizeof (fhandler_termios)];
|
|
char __pty_common[sizeof (fhandler_pty_common)];
|
|
char __pty_slave[sizeof (fhandler_pty_slave)];
|
|
char __virtual[sizeof (fhandler_virtual)];
|
|
char __windows[sizeof (fhandler_windows)];
|
|
} fhandler_union;
|