diff options
Diffstat (limited to 'libXau/AuFileName.c')
| -rw-r--r-- | libXau/AuFileName.c | 159 |
1 files changed, 87 insertions, 72 deletions
diff --git a/libXau/AuFileName.c b/libXau/AuFileName.c index 4419070bc..bc7b177db 100644 --- a/libXau/AuFileName.c +++ b/libXau/AuFileName.c @@ -1,72 +1,87 @@ -/*
-
-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 <stdlib.h>
-
-char *
-XauFileName (void)
-{
- const char *slashDotXauthority = "/.Xauthority";
- char *name;
- static char *buf;
- static int bsize;
-#ifdef WIN32
- char dir[128];
-#endif
- int size;
-
- if ((name = getenv ("XAUTHORITY")))
- return name;
- name = getenv ("HOME");
- if (!name) {
-#ifdef WIN32
- (void) strcpy (dir, "/users/");
- if ((name = getenv("USERNAME"))) {
- (void) strcat (dir, name);
- name = dir;
- }
- if (!name)
-#endif
- return NULL;
- }
- size = strlen (name) + strlen(&slashDotXauthority[1]) + 2;
- if (size > bsize) {
- if (buf)
- free (buf);
- buf = malloc ((unsigned) size);
- if (!buf)
- return NULL;
- bsize = size;
- }
- strcpy (buf, name);
- strcat (buf, slashDotXauthority + (name[1] == '\0' ? 1 : 0));
- return buf;
-}
+/* + +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 <stdlib.h> + +static char *buf = NULL; + +static void +free_filename_buffer(void) +{ + free(buf); + buf = NULL; +} + +char * +XauFileName (void) +{ + const char *slashDotXauthority = "/.Xauthority"; + char *name; + static int bsize; + static int atexit_registered = 0; +#ifdef WIN32 + char dir[128]; +#endif + int size; + + if ((name = getenv ("XAUTHORITY"))) + return name; + name = getenv ("HOME"); + if (!name) { +#ifdef WIN32 + (void) strcpy (dir, "/users/"); + if ((name = getenv("USERNAME"))) { + (void) strcat (dir, name); + name = dir; + } + if (!name) +#endif + return NULL; + } + size = strlen (name) + strlen(&slashDotXauthority[1]) + 2; + if (size > bsize) { + if (buf) + free (buf); + buf = malloc ((unsigned) size); + if (!buf) + return NULL; + + if (!atexit_registered) { + atexit(free_filename_buffer); + atexit_registered = 1; + } + + bsize = size; + } + strcpy (buf, name); + strcat (buf, slashDotXauthority + (name[1] == '\0' ? 1 : 0)); + return buf; +} |