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-rw-r--r--AuFileName.c70
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+/* $Xorg: AuFileName.c,v 1.5 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.
+
+*/
+
+#include <X11/Xauth.h>
+#include <X11/Xos.h>
+
+char *
+XauFileName ()
+{
+ char *slashDotXauthority = "/.Xauthority";
+ char *name, *malloc (), *getenv ();
+ 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 0;
+ }
+ size = strlen (name) + strlen(&slashDotXauthority[1]) + 2;
+ if (size > bsize) {
+ if (buf)
+ free (buf);
+ buf = malloc ((unsigned) size);
+ if (!buf)
+ return 0;
+ bsize = size;
+ }
+ strcpy (buf, name);
+ strcat (buf, slashDotXauthority + (name[1] == '\0' ? 1 : 0));
+ return buf;
+}