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newlib-cygwin
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* cygheap.cc (init_cygheap::close_ctty): Protect YA vforkism. 

* fhandler.h (fhandler_base::has_acls): Make pass through for path_conv method.
(fhandler_base::isremote): Ditto.
(fhandler_base::is_fs_special): Ditto.
(fhandler_base::has_attribute): Ditto.  Define new function.
(fhandler_base::fhaccess): Declare new function based on access_worker.
(fhandler_base::set_has_acls): Eliminate obsolete function.
(fhandler_base::set_isremote): Ditto.
* fhandler.cc (fhandler_base::fhaccess): Move from syscalls.cc and into
fhandler_base class.  Use fhandler methods to access data rather than path_conv
stuff.
(fhandler_base::device_access_denied): Use fhaccess method.
* fhandler_disk_file.cc (fhandler_disk_file::opendir): Ditto.
(fhandler_base::open_fs): Remove calls to obsolete functions.
* fhandler_virtual.cc (fhandler_virtual::open): Ditto.
* winsup.h (access_worker): Remove obsolete access_worker declaration.
*syscalls.cc (access_worker): Move function to fhandler.cc.
(access): Use fhaccess method.
* pinfo.cc (_pinfo::set_ctty): Clarify debugging output.
* sigproc.cc (sig_dispatch_pending): Ditto.
* syscalls.cc (setsid): Perform minor rearrangement.
This commit is contained in:
Christopher Faylor 2004-01-24 03:40:33 +00:00
parent 8e21b8e534
commit f4e815bc30
10 changed files with 133 additions and 110 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

26
winsup/cygwin/ChangeLog
View File

@ -1,3 +1,29 @@
2004-01-23 Christopher Faylor <cgf@redhat.com>
* cygheap.cc (init_cygheap::close_ctty): Protect YA vforkism.
* fhandler.h (fhandler_base::has_acls): Make pass through for path_conv
method.
(fhandler_base::isremote): Ditto.
(fhandler_base::is_fs_special): Ditto.
(fhandler_base::has_attribute): Ditto. Define new function.
(fhandler_base::fhaccess): Declare new function based on access_worker.
(fhandler_base::set_has_acls): Eliminate obsolete function.
(fhandler_base::set_isremote): Ditto.
* fhandler.cc (fhandler_base::fhaccess): Move from syscalls.cc and into
fhandler_base class. Use fhandler methods to access data rather than
path_conv stuff.
(fhandler_base::device_access_denied): Use fhaccess method.
* fhandler_disk_file.cc (fhandler_disk_file::opendir): Ditto.
(fhandler_base::open_fs): Remove calls to obsolete functions.
* fhandler_virtual.cc (fhandler_virtual::open): Ditto.
* winsup.h (access_worker): Remove obsolete access_worker declaration.
*syscalls.cc (access_worker): Move function to fhandler.cc.
(access): Use fhaccess method.
* pinfo.cc (_pinfo::set_ctty): Clarify debugging output.
* sigproc.cc (sig_dispatch_pending): Ditto.
* syscalls.cc (setsid): Perform minor rearrangement.
2004-01-23 Pierre Humblet <pierre.humblet@ieee.org>
* fhandler_socket.cc (fhandler_socket::create_secret_event): Avoid

2
winsup/cygwin/cygheap.cc
View File

@ -176,7 +176,9 @@ void
init_cygheap::close_ctty ()
{
debug_printf ("closing cygheap->ctty %p", cygheap->ctty);
#ifdef NEWVFORK
int usecount = cygheap->ctty->usecount;
#endif
cygheap->ctty->close ();
#ifndef NEWVFORK
cygheap->ctty = NULL;

87
winsup/cygwin/fhandler.cc
View File

@ -328,7 +328,92 @@ fhandler_base::device_access_denied (int flags)
if (!mode)
mode |= R_OK;
return access_worker (pc, mode, this);
return fhaccess (mode);
}
bool
fhandler_base::fhaccess (int flags)
{
if (error ())
{
set_errno (error ());
return -1;
}
if (!exists ())
{
set_errno (ENOENT);
return -1;
}
if (!(flags & (R_OK | W_OK | X_OK)))
return 0;
if (is_fs_special ())
/* short circuit */;
else if (has_attribute (FILE_ATTRIBUTE_READONLY) && (flags & W_OK))
{
set_errno (EACCES);
return -1;
}
else if (has_acls () && allow_ntsec)
return check_file_access (get_win32_name (), flags);
struct __stat64 st;
int r = fstat (&st);
if (r)
return -1;
r = -1;
if (flags & R_OK)
{
if (st.st_uid == myself->uid)
{
if (!(st.st_mode & S_IRUSR))
goto done;
}
else if (st.st_gid == myself->gid)
{
if (!(st.st_mode & S_IRGRP))
goto done;
}
else if (!(st.st_mode & S_IROTH))
goto done;
}
if (flags & W_OK)
{
if (st.st_uid == myself->uid)
{
if (!(st.st_mode & S_IWUSR))
goto done;
}
else if (st.st_gid == myself->gid)
{
if (!(st.st_mode & S_IWGRP))
goto done;
}
else if (!(st.st_mode & S_IWOTH))
goto done;
}
if (flags & X_OK)
{
if (st.st_uid == myself->uid)
{
if (!(st.st_mode & S_IXUSR))
goto done;
}
else if (st.st_gid == myself->gid)
{
if (!(st.st_mode & S_IXGRP))
goto done;
}
else if (!(st.st_mode & S_IXOTH))
goto done;
}
r = 0;
done:
if (r)
set_errno (EACCES);
return r;
}
/* Open system call handler function. */

13
winsup/cygwin/fhandler.h
View File

@ -108,7 +108,6 @@ class fhandler_base
__ino64_t namehash; /* hashed filename, used as inode num */
protected:
/* Full unix path name of this file */
/* File open flags from open () and fcntl () calls */
int openflags;
@ -256,12 +255,11 @@ class fhandler_base
int get_readahead_into_buffer (char *buf, size_t buflen);
bool has_acls () { return FHISSETF (HASACLS); }
void set_has_acls (int val) { FHCONDSETF (val, HASACLS); }
bool has_acls () const { return pc.has_acls (); }
bool isremote () { return FHISSETF (ISREMOTE); }
void set_isremote (int val) { FHCONDSETF (val, ISREMOTE); }
bool isremote () { return pc.isremote (); }
bool has_attribute (DWORD x) const {return pc.has_attribute (x);}
const char *get_name () const { return pc.normalized_path; }
const char *get_win32_name () { return pc.get_win32 (); }
__ino64_t get_namehash () { return namehash; }
@ -364,8 +362,9 @@ class fhandler_base
virtual int closedir (DIR *);
virtual bool is_slow () {return 0;}
bool is_auto_device () {return isdevice () && !dev ().isfs ();}
bool is_fs_special () {return dev ().isfs ();}
bool device_access_denied (int) __attribute__ ((regparm (1)));
bool is_fs_special () {return pc.is_fs_special ();}
bool device_access_denied (int) __attribute__ ((regparm (2)));
bool fhaccess (int flags) __attribute__ ((regparm (2)));
};
class fhandler_socket: public fhandler_base

5
winsup/cygwin/fhandler_disk_file.cc
View File

@ -395,9 +395,6 @@ fhandler_base::open_fs (int flags, mode_t mode)
return 0;
}
set_has_acls (pc.has_acls ());
set_isremote (pc.isremote ());
int res = fhandler_base::open (flags | O_DIROPEN, mode);
if (!res)
goto out;
@ -632,7 +629,7 @@ fhandler_disk_file::opendir ()
set_errno (ENOMEM);
goto free_dirname;
}
else if (access_worker (pc, R_OK, this) != 0)
else if (fhaccess (R_OK) != 0)
goto free_dirent;
else
{

3
winsup/cygwin/fhandler_virtual.cc
View File

@ -210,9 +210,6 @@ fhandler_virtual::open (int flags, mode_t mode)
set_r_binary (1);
set_w_binary (1);
set_has_acls (false);
set_isremote (false);
/* what to do about symlinks? */
set_symlink_p (false);
set_execable_p (not_executable);

2
winsup/cygwin/pinfo.cc
View File

@ -258,7 +258,7 @@ pinfo::set_acl()
void
_pinfo::set_ctty (tty_min *tc, int flags, fhandler_tty_slave *arch)
{
debug_printf ("checking if /dev/tty%d differs from input", ctty);
debug_printf ("checking if /dev/tty%d changed", ctty);
if ((ctty < 0 || ctty == tc->ntty) && !(flags & O_NOCTTY))
{
ctty = tc->ntty;

2
winsup/cygwin/sigproc.cc
View File

@ -574,7 +574,7 @@ sig_dispatch_pending ()
if (exit_state || GetCurrentThreadId () == sigtid || !sigqueue.start.next)
{
#ifdef DEBUGGING
sigproc_printf ("exit_state %d, GetCurrentThreadId () %p, sigtid %p, sigqueue.start.next %p",
sigproc_printf ("exit_state %d, cur thread id %p, sigtid %p, sigqueue.start.next %p",
exit_state, GetCurrentThreadId (), sigtid, sigqueue.start.next);
#endif
return 0;

102
winsup/cygwin/syscalls.cc
View File

@ -327,10 +327,10 @@ setsid (void)
myself->ctty = -1;
myself->sid = getpid ();
myself->pgid = getpid ();
syscall_printf ("sid %d, pgid %d, ctty %d, open_fhs %d", myself->sid,
myself->pgid, myself->ctty, cygheap->open_fhs);
if (cygheap->ctty)
cygheap->close_ctty ();
syscall_printf ("sid %d, pgid %d, ctty %d, open_fhs %d", myself->sid,
myself->pgid, myself->ctty, cygheap->open_fhs);
return myself->sid;
}
@ -1239,103 +1239,21 @@ lstat (const char *name, struct __stat32 *buf)
return ret;
}
int
access_worker (path_conv& real_path, int flags, fhandler_base *fh)
{
if (real_path.error)
{
set_errno (real_path.error);
return -1;
}
if (!real_path.exists ())
{
set_errno (ENOENT);
return -1;
}
if (!(flags & (R_OK | W_OK | X_OK)))
return 0;
if (real_path.is_fs_special ())
/* short circuit */;
else if (real_path.has_attribute (FILE_ATTRIBUTE_READONLY) && (flags & W_OK))
{
set_errno (EACCES);
return -1;
}
else if (real_path.has_acls () && allow_ntsec)
return check_file_access (real_path, flags);
struct __stat64 st;
int r = fh ? fh->fstat (&st) : stat_worker (real_path, &st, 0);
if (r)
return -1;
r = -1;
if (flags & R_OK)
{
if (st.st_uid == myself->uid)
{
if (!(st.st_mode & S_IRUSR))
goto done;
}
else if (st.st_gid == myself->gid)
{
if (!(st.st_mode & S_IRGRP))
goto done;
}
else if (!(st.st_mode & S_IROTH))
goto done;
}
if (flags & W_OK)
{
if (st.st_uid == myself->uid)
{
if (!(st.st_mode & S_IWUSR))
goto done;
}
else if (st.st_gid == myself->gid)
{
if (!(st.st_mode & S_IWGRP))
goto done;
}
else if (!(st.st_mode & S_IWOTH))
goto done;
}
if (flags & X_OK)
{
if (st.st_uid == myself->uid)
{
if (!(st.st_mode & S_IXUSR))
goto done;
}
else if (st.st_gid == myself->gid)
{
if (!(st.st_mode & S_IXGRP))
goto done;
}
else if (!(st.st_mode & S_IXOTH))
goto done;
}
r = 0;
done:
if (r)
set_errno (EACCES);
return r;
}
extern "C" int
access (const char *fn, int flags)
{
// flags were incorrectly specified
int res = -1;
if (flags & ~(F_OK|R_OK|W_OK|X_OK))
set_errno (EINVAL);
else
{
set_errno (EINVAL);
return -1;
fhandler_base *fh = build_fh_name (fn, NULL, PC_SYM_FOLLOW | PC_FULL, stat_suffixes);
res = fh->fhaccess (flags);
delete fh;
}
path_conv pc (fn, PC_SYM_FOLLOW | PC_FULL, stat_suffixes);
return access_worker (pc, flags);
debug_printf ("returning %d", res);
return res;
}
extern "C" int

1
winsup/cygwin/winsup.h
View File

@ -302,7 +302,6 @@ int symlink_worker (const char *, const char *, bool, bool)
__attribute__ ((regparm (3)));
class path_conv;
int access_worker (path_conv&, int, class fhandler_base * = NULL) __attribute__ ((regparm (3)));
int fcntl_worker (int fd, int cmd, void *arg);