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Rewrite the Win32 version to use GetFileAttributes() instead of stat().

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2004-12-31  Tor Lillqvist  <tml@iki.fi>

	* glib/gfileutils.c (g_file_test): Rewrite the Win32 version to
	use GetFileAttributes() instead of stat(). stat() is unreliable
	for corner cases like '\\server\share' or '.\'. Part of fixing
	#161797. When testing for executability, in addition to the fixed
	set of executable file name extensions also check the PATHEXT
	environment variable.
This commit is contained in:
Tor Lillqvist 2004-12-31 01:15:15 +00:00 committed by Tor Lillqvist
parent ae9d96865d
commit 7e6be89c62
6 changed files with 177 additions and 102 deletions
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15
ChangeLog
View File

@ -1,8 +1,17 @@
2004-12-31 Tor Lillqvist <tml@iki.fi>
* glib/gfileutils.c (g_file_test): Rewrite the Win32 version to
use GetFileAttributes() instead of stat(). stat() is unreliable
for corner cases like '\\server\share' or '.\'. Part of fixing
#161797. When testing for executability, in addition to the fixed
set of executable file name extensions also check the PATHEXT
environment variable.
2004-12-30 Tor Lillqvist <tml@iki.fi>
* glib/gutils.c (g_get_current_dir): Use GetCurrentDirectory()
directly for simpler buffer length management. I don't trust
getcwd() getting it right all the time.
* glib/gutils.c (g_get_current_dir): In the Win32 version, use
GetCurrentDirectory() directly for simpler buffer length
management. I don't trust getcwd() getting it right all the time.
2004-12-30 Matthias Clasen <mclasen@redhat.com>

15
ChangeLog.pre-2-10
View File

@ -1,8 +1,17 @@
2004-12-31 Tor Lillqvist <tml@iki.fi>
* glib/gfileutils.c (g_file_test): Rewrite the Win32 version to
use GetFileAttributes() instead of stat(). stat() is unreliable
for corner cases like '\\server\share' or '.\'. Part of fixing
#161797. When testing for executability, in addition to the fixed
set of executable file name extensions also check the PATHEXT
environment variable.
2004-12-30 Tor Lillqvist <tml@iki.fi>
* glib/gutils.c (g_get_current_dir): Use GetCurrentDirectory()
directly for simpler buffer length management. I don't trust
getcwd() getting it right all the time.
* glib/gutils.c (g_get_current_dir): In the Win32 version, use
GetCurrentDirectory() directly for simpler buffer length
management. I don't trust getcwd() getting it right all the time.
2004-12-30 Matthias Clasen <mclasen@redhat.com>

15
ChangeLog.pre-2-12
View File

@ -1,8 +1,17 @@
2004-12-31 Tor Lillqvist <tml@iki.fi>
* glib/gfileutils.c (g_file_test): Rewrite the Win32 version to
use GetFileAttributes() instead of stat(). stat() is unreliable
for corner cases like '\\server\share' or '.\'. Part of fixing
#161797. When testing for executability, in addition to the fixed
set of executable file name extensions also check the PATHEXT
environment variable.
2004-12-30 Tor Lillqvist <tml@iki.fi>
* glib/gutils.c (g_get_current_dir): Use GetCurrentDirectory()
directly for simpler buffer length management. I don't trust
getcwd() getting it right all the time.
* glib/gutils.c (g_get_current_dir): In the Win32 version, use
GetCurrentDirectory() directly for simpler buffer length
management. I don't trust getcwd() getting it right all the time.
2004-12-30 Matthias Clasen <mclasen@redhat.com>

15
ChangeLog.pre-2-6
View File

@ -1,8 +1,17 @@
2004-12-31 Tor Lillqvist <tml@iki.fi>
* glib/gfileutils.c (g_file_test): Rewrite the Win32 version to
use GetFileAttributes() instead of stat(). stat() is unreliable
for corner cases like '\\server\share' or '.\'. Part of fixing
#161797. When testing for executability, in addition to the fixed
set of executable file name extensions also check the PATHEXT
environment variable.
2004-12-30 Tor Lillqvist <tml@iki.fi>
* glib/gutils.c (g_get_current_dir): Use GetCurrentDirectory()
directly for simpler buffer length management. I don't trust
getcwd() getting it right all the time.
* glib/gutils.c (g_get_current_dir): In the Win32 version, use
GetCurrentDirectory() directly for simpler buffer length
management. I don't trust getcwd() getting it right all the time.
2004-12-30 Matthias Clasen <mclasen@redhat.com>

15
ChangeLog.pre-2-8
View File

@ -1,8 +1,17 @@
2004-12-31 Tor Lillqvist <tml@iki.fi>
* glib/gfileutils.c (g_file_test): Rewrite the Win32 version to
use GetFileAttributes() instead of stat(). stat() is unreliable
for corner cases like '\\server\share' or '.\'. Part of fixing
#161797. When testing for executability, in addition to the fixed
set of executable file name extensions also check the PATHEXT
environment variable.
2004-12-30 Tor Lillqvist <tml@iki.fi>
* glib/gutils.c (g_get_current_dir): Use GetCurrentDirectory()
directly for simpler buffer length management. I don't trust
getcwd() getting it right all the time.
* glib/gutils.c (g_get_current_dir): In the Win32 version, use
GetCurrentDirectory() directly for simpler buffer length
management. I don't trust getcwd() getting it right all the time.
2004-12-30 Matthias Clasen <mclasen@redhat.com>

204
glib/gfileutils.c
View File

@ -38,21 +38,7 @@
#include <stdlib.h>
#ifdef G_OS_WIN32
#include <io.h>
#ifndef F_OK
#define F_OK 0
#define W_OK 2
#define R_OK 4
#endif /* !F_OK */
#ifndef S_ISREG
#define S_ISREG(mode) ((mode)&_S_IFREG)
#endif
#ifndef S_ISDIR
#define S_ISDIR(mode) ((mode)&_S_IFDIR)
#endif
#include <windows.h>
#endif /* G_OS_WIN32 */
#ifndef S_ISLNK
@ -68,7 +54,7 @@
/**
* g_file_test:
* @filename: a filename to test
* @filename: a filename to test in the GLib file name encoding
* @test: bitfield of #GFileTest flags
*
* Returns %TRUE if any of the tests in the bitfield @test are
@ -107,6 +93,12 @@
* the answer for the real user ID and group ID, rather than the
* effective user ID and group ID.
*
* On Windows, there are no symlinks, so testing for
* %G_FILE_TEST_IS_SYMLINK will always return %FALSE. Testing for
* %G_FILE_TEST_IS_EXECUTABLE will just check that the file exists and
* its name indicates that it is executable, checking for well-known
* extensions and those listed in the %PATHEXT environment variable.
*
* Return value: whether a test was %TRUE
**/
gboolean
@ -114,6 +106,8 @@ g_file_test (const gchar *filename,
GFileTest test)
{
#ifdef G_OS_WIN32
int attributes;
if (G_WIN32_HAVE_WIDECHAR_API ())
{
wchar_t *wfilename = g_utf8_to_utf16 (filename, -1, NULL, NULL, NULL);
@ -121,91 +115,127 @@ g_file_test (const gchar *filename,
if (wfilename == NULL)
return FALSE;
if ((test & G_FILE_TEST_EXISTS) && (_waccess (wfilename, F_OK) == 0))
{
g_free (wfilename);
return TRUE;
}
if (test & (G_FILE_TEST_IS_REGULAR |
G_FILE_TEST_IS_DIR |
G_FILE_TEST_IS_EXECUTABLE))
{
struct _stat s;
if (_wstat (wfilename, &s) == 0)
{
if ((test & G_FILE_TEST_IS_REGULAR) && S_ISREG (s.st_mode))
{
g_free (wfilename);
return TRUE;
}
if ((test & G_FILE_TEST_IS_DIR) && S_ISDIR (s.st_mode))
{
g_free (wfilename);
return TRUE;
}
if ((test & G_FILE_TEST_IS_EXECUTABLE) &&
(s.st_mode & _S_IEXEC))
{
g_free (wfilename);
return TRUE;
}
}
}
attributes = GetFileAttributesW (wfilename);
g_free (wfilename);
return FALSE;
}
else
{
gchar *cp_filename = g_locale_from_utf8 (filename, -1, NULL, NULL, NULL);
gchar *cpfilename = g_locale_from_utf8 (filename, -1, NULL, NULL, NULL);
if (cp_filename == NULL)
if (cpfilename == NULL)
return FALSE;
if ((test & G_FILE_TEST_EXISTS) && (access (cp_filename, F_OK) == 0))
{
g_free (cp_filename);
return TRUE;
}
attributes = GetFileAttributesA (cpfilename);
if (test & (G_FILE_TEST_IS_REGULAR |
G_FILE_TEST_IS_DIR |
G_FILE_TEST_IS_EXECUTABLE))
g_free (cpfilename);
}
if (attributes == INVALID_FILE_ATTRIBUTES)
return FALSE;
if (test & G_FILE_TEST_EXISTS)
return TRUE;
if (test & G_FILE_TEST_IS_REGULAR)
return (attributes & (FILE_ATTRIBUTE_DIRECTORY | FILE_ATTRIBUTE_DEVICE)) == 0;
if (test & G_FILE_TEST_IS_DIR)
return (attributes & FILE_ATTRIBUTE_DIRECTORY) != 0;
if (test & G_FILE_TEST_IS_EXECUTABLE)
{
const gchar *lastdot = strrchr (filename, '.');
gchar *pathext = NULL, *tem, *p;
int extlen;
if (lastdot == NULL)
return FALSE;
if (stricmp (lastdot, ".exe") == 0 ||
stricmp (lastdot, ".cmd") == 0 ||
stricmp (lastdot, ".bat") == 0 ||
stricmp (lastdot, ".com") == 0)
return TRUE;
/* Check if it is one of the types listed in %PATHEXT% */
/* Perhaps unfortunately, g_getenv() doesn't return UTF-8, but
* system codepage. And _wgetenv() isn't useful either, as the C
* runtime just keeps system codepage versions of the
* environment variables in applications that aren't built
* specially. So use GetEnvironmentVariableW().
*/
if (G_WIN32_HAVE_WIDECHAR_API ())
{
struct stat s;
if (stat (cp_filename, &s) == 0)
{
if ((test & G_FILE_TEST_IS_REGULAR) && S_ISREG (s.st_mode))
{
g_free (cp_filename);
return TRUE;
}
if ((test & G_FILE_TEST_IS_DIR) && S_ISDIR (s.st_mode))
{
g_free (cp_filename);
return TRUE;
}
if ((test & G_FILE_TEST_IS_EXECUTABLE) &&
(s.st_mode & _S_IEXEC))
{
g_free (cp_filename);
return TRUE;
}
}
wchar_t dummy[2], *wvar;
int len;
len = GetEnvironmentVariableW (L"PATHEXT", dummy, 2);
if (len == 0)
return FALSE;
wvar = g_new (wchar_t, len);
if (GetEnvironmentVariableW (L"PATHEXT", wvar, len) == len - 1)
pathext = g_utf16_to_utf8 (wvar, -1, NULL, NULL, NULL);
g_free (wvar);
}
else
{
gchar dummy[2], *cpvar;
int len;
len = GetEnvironmentVariableA ("PATHEXT", dummy, 2);
if (len == 0)
return FALSE;
cpvar = g_new (gchar, len);
if (GetEnvironmentVariableA ("PATHEXT", cpvar, len) == len - 1)
pathext = g_locale_to_utf8 (cpvar, -1, NULL, NULL, NULL);
g_free (cpvar);
}
g_free (cp_filename);
if (pathext == NULL)
return FALSE;
tem = pathext;
pathext = g_utf8_casefold (pathext, -1);
g_free (tem);
lastdot = g_utf8_casefold (lastdot, -1);
extlen = strlen (lastdot);
p = pathext;
while (TRUE)
{
gchar *q = strchr (p, ';');
if (q == NULL)
q = p + strlen (p);
if (extlen == q - p &&
memcmp (lastdot, p, extlen) == 0)
{
g_free (pathext);
g_free ((gchar *) lastdot);
return TRUE;
}
if (*q)
p = q + 1;
else
break;
}
g_free (pathext);
g_free ((gchar *) lastdot);
return FALSE;
}
return FALSE;
#else
if ((test & G_FILE_TEST_EXISTS) && (access (filename, F_OK) == 0))
return TRUE;