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-rw-r--r--libXau/AuLock.c237
1 files changed, 117 insertions, 120 deletions
diff --git a/libXau/AuLock.c b/libXau/AuLock.c
index 69b1fd69a..45d6b71a3 100644
--- a/libXau/AuLock.c
+++ b/libXau/AuLock.c
@@ -1,120 +1,117 @@
-/* $Xorg: AuLock.c,v 1.4 2001/02/09 02:03:42 xorgcvs Exp $ */
-
-/*
-
-Copyright 1988, 1998 The Open Group
-
-Permission to use, copy, modify, distribute, and sell this software and its
-documentation for any purpose is hereby granted without fee, provided that
-the above copyright notice appear in all copies and that both that
-copyright notice and this permission notice appear in supporting
-documentation.
-
-The above copyright notice and this permission notice shall be included in
-all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
-AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
-CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-Except as contained in this notice, the name of The Open Group shall not be
-used in advertising or otherwise to promote the sale, use or other dealings
-in this Software without prior written authorization from The Open Group.
-
-*/
-/* $XFree86: xc/lib/Xau/AuLock.c,v 3.6 2002/05/31 18:45:43 dawes Exp $ */
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-#include <X11/Xauth.h>
-#include <X11/Xos.h>
-#include <sys/stat.h>
-#include <errno.h>
-#include <time.h>
-#define Time_t time_t
-#ifndef X_NOT_POSIX
-#include <unistd.h>
-#else
-#ifndef WIN32
-extern unsigned sleep ();
-#else
-#include <X11/Xwindows.h>
-#define link rename
-#endif
-#endif
-#ifdef __UNIXOS2__
-#define link rename
-#endif
-
-int
-XauLockAuth (
-_Xconst char *file_name,
-int retries,
-int timeout,
-long dead)
-{
- char creat_name[1025], link_name[1025];
- struct stat statb;
- Time_t now;
- int creat_fd = -1;
-
- if (strlen (file_name) > 1022)
- return LOCK_ERROR;
- (void) strcpy (creat_name, file_name);
- (void) strcat (creat_name, "-c");
- (void) strcpy (link_name, file_name);
- (void) strcat (link_name, "-l");
- if (stat (creat_name, &statb) != -1) {
- now = time ((Time_t *) 0);
- /*
- * NFS may cause ctime to be before now, special
- * case a 0 deadtime to force lock removal
- */
- if (dead == 0 || now - statb.st_ctime > dead) {
- (void) unlink (creat_name);
- (void) unlink (link_name);
- }
- }
-
- while (retries > 0) {
- if (creat_fd == -1) {
- creat_fd = open (creat_name, O_WRONLY | O_CREAT | O_EXCL, 0600);
- if (creat_fd == -1) {
- if (errno != EACCES)
- return LOCK_ERROR;
- } else
- (void) close (creat_fd);
- }
- if (creat_fd != -1) {
-#ifndef X_NOT_POSIX
- /* The file system may not support hard links, and pathconf should tell us that. */
- if (1 == pathconf(creat_name, _PC_LINK_MAX)) {
- if (-1 == rename(creat_name, link_name)) {
- /* Is this good enough? Perhaps we should retry. TEST */
- return LOCK_ERROR;
- } else {
- return LOCK_SUCCESS;
- }
- } else {
-#endif
- if (link (creat_name, link_name) != -1)
- return LOCK_SUCCESS;
- if (errno == ENOENT) {
- creat_fd = -1; /* force re-creat next time around */
- continue;
- }
- if (errno != EEXIST)
- return LOCK_ERROR;
-#ifndef X_NOT_POSIX
- }
-#endif
- }
- (void) sleep ((unsigned) timeout);
- --retries;
- }
- return LOCK_TIMEOUT;
-}
+/*
+
+Copyright 1988, 1998 The Open Group
+
+Permission to use, copy, modify, distribute, and sell this software and its
+documentation for any purpose is hereby granted without fee, provided that
+the above copyright notice appear in all copies and that both that
+copyright notice and this permission notice appear in supporting
+documentation.
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+Except as contained in this notice, the name of The Open Group shall not be
+used in advertising or otherwise to promote the sale, use or other dealings
+in this Software without prior written authorization from The Open Group.
+
+*/
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+#include <X11/Xauth.h>
+#include <X11/Xos.h>
+#include <sys/stat.h>
+#include <errno.h>
+#include <time.h>
+#define Time_t time_t
+#ifndef X_NOT_POSIX
+#include <unistd.h>
+#else
+#ifndef WIN32
+extern unsigned sleep ();
+#else
+#include <X11/Xwindows.h>
+#define link rename
+#endif
+#endif
+#ifdef __UNIXOS2__
+#define link rename
+#endif
+
+int
+XauLockAuth (
+_Xconst char *file_name,
+int retries,
+int timeout,
+long dead)
+{
+ char creat_name[1025], link_name[1025];
+ struct stat statb;
+ Time_t now;
+ int creat_fd = -1;
+
+ if (strlen (file_name) > 1022)
+ return LOCK_ERROR;
+ (void) strcpy (creat_name, file_name);
+ (void) strcat (creat_name, "-c");
+ (void) strcpy (link_name, file_name);
+ (void) strcat (link_name, "-l");
+ if (stat (creat_name, &statb) != -1) {
+ now = time ((Time_t *) 0);
+ /*
+ * NFS may cause ctime to be before now, special
+ * case a 0 deadtime to force lock removal
+ */
+ if (dead == 0 || now - statb.st_ctime > dead) {
+ (void) unlink (creat_name);
+ (void) unlink (link_name);
+ }
+ }
+
+ while (retries > 0) {
+ if (creat_fd == -1) {
+ creat_fd = open (creat_name, O_WRONLY | O_CREAT | O_EXCL, 0600);
+ if (creat_fd == -1) {
+ if (errno != EACCES)
+ return LOCK_ERROR;
+ } else
+ (void) close (creat_fd);
+ }
+ if (creat_fd != -1) {
+#ifndef X_NOT_POSIX
+ /* The file system may not support hard links, and pathconf should tell us that. */
+ if (1 == pathconf(creat_name, _PC_LINK_MAX)) {
+ if (-1 == rename(creat_name, link_name)) {
+ /* Is this good enough? Perhaps we should retry. TEST */
+ return LOCK_ERROR;
+ } else {
+ return LOCK_SUCCESS;
+ }
+ } else {
+#endif
+ if (link (creat_name, link_name) != -1)
+ return LOCK_SUCCESS;
+ if (errno == ENOENT) {
+ creat_fd = -1; /* force re-creat next time around */
+ continue;
+ }
+ if (errno != EEXIST)
+ return LOCK_ERROR;
+#ifndef X_NOT_POSIX
+ }
+#endif
+ }
+ (void) sleep ((unsigned) timeout);
+ --retries;
+ }
+ return LOCK_TIMEOUT;
+}
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