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* fhandler.cc (check_posix_perm): Moved here from syscalls.cc.

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(fhandler_base::fpathconf): New method implementing (f)pathconf.
	* fhandler.h (class fhandler_base): Declare fpathconf method.
	* path.cc (path_conv::check): Replace MAX_LINK_DEPTH with SYMLOOP_MAX.
	* path.h (MAX_LINK_DEPTH): Delete.
	* syscalls.cc (check_posix_perm): Move to fhandler.cc.
	(fpathconf): Call fhandler's fpathconf method.
	(pathconf): Build fhandler and call fhandler's fpathconf method.
	* sysconf.cc (sysconf): Reorder switch according to order of flags
	in sys/unistd.h.  Add handling for some missing flags.
	* include/limits.h: Reorder according to SUSv3 description.  Add some
	missing definitions.  Add comments.
	* include/sys/syslimits.h: New file overriding newlib's syslimits.h
	file.
This commit is contained in:
Corinna Vinschen
2006-11-07 17:59:54 +00:00
parent b1755fe736
commit 86bc8fadff
9 changed files with 323 additions and 163 deletions
Download Patch File Download Diff File Expand all files Collapse all files

118
winsup/cygwin/syscalls.cc
View File

@@ -1,7 +1,7 @@
/* syscalls.cc: syscalls
Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
2005 Red Hat, Inc.
2005, 2006 Red Hat, Inc.
This file is part of Cygwin.
@@ -1460,38 +1460,6 @@ getsystempagesize ()
return (size_t) system_info.dwPageSize;
}
static int
check_posix_perm (const char *fname, int v)
{
/* Windows 95/98/ME don't support file system security at all. */
if (!wincap.has_security ())
return 0;
/* ntea is ok for supporting permission bits but it doesn't support
full POSIX security settings. */
if (v == _PC_POSIX_PERMISSIONS && allow_ntea)
return 1;
if (!allow_ntsec)
return 0;
char *root = rootdir (fname, (char *)alloca (strlen (fname)));
if (!allow_smbntsec
&& ((root[0] == '\\' && root[1] == '\\')
|| GetDriveType (root) == DRIVE_REMOTE))
return 0;
DWORD vsn, len, flags;
if (!GetVolumeInformation (root, NULL, 0, &vsn, &len, &flags, NULL, 16))
{
__seterrno ();
return 0;
}
return (flags & FS_PERSISTENT_ACLS) ? 1 : 0;
}
/* FIXME: not all values are correct... */
extern "C" long int
fpathconf (int fd, int v)
@@ -1499,50 +1467,14 @@ fpathconf (int fd, int v)
cygheap_fdget cfd (fd);
if (cfd < 0)
return -1;
switch (v)
{
case _PC_LINK_MAX:
return _POSIX_LINK_MAX;
case _PC_MAX_CANON:
case _PC_MAX_INPUT:
if (isatty (fd))
return _POSIX_MAX_CANON;
else
{
set_errno (EBADF);
return -1;
}
case _PC_NAME_MAX:
case _PC_PATH_MAX:
return PATH_MAX;
case _PC_PIPE_BUF:
return PIPE_BUF;
case _PC_CHOWN_RESTRICTED:
case _PC_NO_TRUNC:
return -1;
case _PC_VDISABLE:
if (cfd->is_tty ())
return -1;
else
{
set_errno (EBADF);
return -1;
}
case _PC_POSIX_PERMISSIONS:
case _PC_POSIX_SECURITY:
if (cfd->get_device () == FH_FS)
return check_posix_perm (cfd->get_win32_name (), v);
set_errno (EINVAL);
return -1;
default:
set_errno (EINVAL);
return -1;
}
return cfd->fpathconf (v);
}
extern "C" long int
pathconf (const char *file, int v)
{
fhandler_base *fh;
myfault efault;
if (efault.faulted (EFAULT))
return -1;
@@ -1551,45 +1483,15 @@ pathconf (const char *file, int v)
set_errno (ENOENT);
return -1;
}
switch (v)
if (!(fh = build_fh_name (file, NULL, PC_SYM_FOLLOW,
transparent_exe ? stat_suffixes : NULL)))
return -1;
if (!fh->exists ())
{
case _PC_PATH_MAX:
return PATH_MAX - strlen (file);
case _PC_NAME_MAX:
return PATH_MAX;
case _PC_LINK_MAX:
return _POSIX_LINK_MAX;
case _PC_MAX_CANON:
case _PC_MAX_INPUT:
return _POSIX_MAX_CANON;
case _PC_PIPE_BUF:
return PIPE_BUF;
case _PC_CHOWN_RESTRICTED:
case _PC_NO_TRUNC:
return -1;
case _PC_VDISABLE:
return -1;
case _PC_POSIX_PERMISSIONS:
case _PC_POSIX_SECURITY:
{
path_conv full_path (file, PC_SYM_FOLLOW,
transparent_exe ? stat_suffixes : NULL);
if (full_path.error)
{
set_errno (full_path.error);
return -1;
}
if (full_path.is_auto_device ())
{
set_errno (EINVAL);
return -1;
}
return check_posix_perm (full_path, v);
}
default:
set_errno (EINVAL);
set_errno (ENOENT);
return -1;
}
return fh->fpathconf (v);
}
extern "C" int