147 lines
3.8 KiB
C++
147 lines
3.8 KiB
C++
/* path.h: path data structures
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Copyright 1996, 1997, 1998, 2000 Red Hat, Inc.
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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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struct suffix_info
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{
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const char *name;
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int addon;
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suffix_info (const char *s, int addit = 0) {name = s, addon = addit;}
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};
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enum pathconv_arg
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{
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PC_SYM_FOLLOW = 0x0001,
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PC_SYM_NOFOLLOW = 0x0002,
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PC_SYM_IGNORE = 0x0004,
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PC_SYM_CONTENTS = 0x0008,
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PC_FULL = 0x0010,
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PC_NULLEMPTY = 0x0020
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};
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#define PC_NONULLEMPTY -1
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#include <sys/mount.h>
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enum path_types
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{
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PATH_NOTHING = 0,
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PATH_SYMLINK = MOUNT_SYMLINK,
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PATH_BINARY = MOUNT_BINARY,
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PATH_EXEC = MOUNT_EXEC,
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PATH_CYGWIN_EXEC = MOUNT_CYGWIN_EXEC,
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PATH_NEEDDIR = 0x20000000,
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PATH_SOCKET = 0x40000000,
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PATH_HASACLS = 0x80000000
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};
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class path_conv
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{
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char path[MAX_PATH];
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public:
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unsigned path_flags;
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int has_acls () {return path_flags & PATH_HASACLS;}
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int hasgood_inode () {return path_flags & PATH_HASACLS;} // Not strictly correct
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int isbinary () {return path_flags & PATH_BINARY;}
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int issymlink () {return path_flags & PATH_SYMLINK;}
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int issocket () {return path_flags & PATH_SOCKET;}
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int isexec () {return path_flags & PATH_EXEC;}
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int iscygexec () {return path_flags & PATH_CYGWIN_EXEC;}
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void set_binary () {path_flags |= PATH_BINARY;}
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void set_symlink () {path_flags |= PATH_SYMLINK;}
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void set_exec (int x = 1) {path_flags |= x ? PATH_EXEC : PATH_NOTHING;}
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void set_has_acls (int x = 1) {path_flags |= x ? PATH_HASACLS : PATH_NOTHING;}
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char *known_suffix;
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int error;
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DWORD devn;
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int unit;
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DWORD fileattr;
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void check (const char *src, unsigned opt = PC_SYM_FOLLOW,
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const suffix_info *suffixes = NULL);
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path_conv (int, const char *src, unsigned opt = PC_SYM_FOLLOW,
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const suffix_info *suffixes = NULL)
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{
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check (src, opt, suffixes);
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}
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path_conv (const char *src, unsigned opt = PC_SYM_FOLLOW,
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const suffix_info *suffixes = NULL)
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{
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check (src, opt | PC_NULLEMPTY, suffixes);
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}
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path_conv (): path_flags (0), known_suffix (NULL), error (0), devn (0), unit (0), fileattr (0xffffffff) {path[0] = '\0';}
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inline char *get_win32 () { return path; }
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operator char *() {return path; }
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BOOL is_device () {return devn != FH_BAD;}
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DWORD get_devn () {return devn == FH_BAD ? (DWORD) FH_DISK : devn;}
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short get_unitn () {return devn == FH_BAD ? 0 : unit;}
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DWORD file_attributes () {return fileattr;}
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};
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/* Symlink marker */
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#define SYMLINK_COOKIE "!<symlink>"
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/* Socket marker */
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#define SOCKET_COOKIE "!<socket >"
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/* Maximum depth of symlinks (after which ELOOP is issued). */
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#define MAX_LINK_DEPTH 10
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extern suffix_info std_suffixes[];
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int __stdcall get_device_number (const char *name, int &unit, BOOL from_conv = FALSE);
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int __stdcall slash_unc_prefix_p (const char *path);
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int __stdcall check_null_empty_path (const char *name);
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const char * __stdcall find_exec (const char *name, path_conv& buf, const char *winenv = "PATH=",
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int null_if_notfound = 0, const char **known_suffix = NULL);
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/* Common macros for checking for invalid path names */
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#define check_null_empty_path_errno(src) \
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({ \
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int __err; \
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if ((__err = check_null_empty_path(src))) \
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set_errno (__err); \
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__err; \
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})
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#define isdrive(s) (isalpha (*(s)) && (s)[1] == ':')
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/* cwd cache stuff. */
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class muto;
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struct cwdstuff
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{
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char *posix;
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char *win32;
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DWORD hash;
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muto *lock;
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char *get (char *buf, int need_posix = 1, int with_chroot = 0, unsigned ulen = MAX_PATH);
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DWORD get_hash ();
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void init ();
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void fixup_after_exec (char *win32, char *posix, DWORD hash);
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bool get_initial ();
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void copy (char * &posix_cwd, char * &win32_cwd, DWORD hash_cwd);
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void set (const char *win32_cwd, const char *posix_cwd = NULL);
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};
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extern cwdstuff cygcwd;
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