+++ /dev/null
---- tempnam.c.orig 2010-10-25 19:45:24.000000000 -0700
-+++ tempnam.c 2010-10-25 22:01:51.000000000 -0700
-@@ -53,35 +53,60 @@ tempnam(dir, pfx)
- int sverrno;
- char *f, *name;
-
-- if (!(name = malloc(MAXPATHLEN)))
-+ if (!(name = malloc(MAXPATHLEN))) {
- return(NULL);
-+ }
-
- if (!pfx)
- pfx = "tmp.";
-
-+#if !__DARWIN_UNIX03
- if (issetugid() == 0 && (f = getenv("TMPDIR"))) {
- (void)snprintf(name, MAXPATHLEN, "%s%s%sXXXXXX", f,
- *(f + strlen(f) - 1) == '/'? "": "/", pfx);
-- if ((f = _mktemp(name)))
-+ if ((f = _mktemp(name))) {
- return(f);
-+ }
- }
--
-+#endif /* !__DARWIN_UNIX03 */
- if ((f = (char *)dir)) {
-+#if __DARWIN_UNIX03
-+ if (access(dir, W_OK) == 0) {
-+#endif /* __DARWIN_UNIX03 */
- (void)snprintf(name, MAXPATHLEN, "%s%s%sXXXXXX", f,
- *(f + strlen(f) - 1) == '/'? "": "/", pfx);
-- if ((f = _mktemp(name)))
-+ if ((f = _mktemp(name))) {
- return(f);
-+ }
-+#if __DARWIN_UNIX03
-+ }
-+#endif /* __DARWIN_UNIX03 */
- }
-
- f = P_tmpdir;
-+#if __DARWIN_UNIX03
-+ if (access(f, W_OK) == 0) { /* directory accessible? */
-+#endif /* __DARWIN_UNIX03 */
- (void)snprintf(name, MAXPATHLEN, "%s%sXXXXXX", f, pfx);
-- if ((f = _mktemp(name)))
-+ if ((f = _mktemp(name))) {
- return(f);
-+ }
-
-+#if __DARWIN_UNIX03
-+ }
-+ if (issetugid() == 0 && (f = getenv("TMPDIR")) && access(f, W_OK) == 0) {
-+ (void)snprintf(name, MAXPATHLEN, "%s%s%sXXXXXX", f,
-+ *(f + strlen(f) - 1) == '/'? "": "/", pfx);
-+ if ((f = _mktemp(name))) {
-+ return(f);
-+ }
-+ }
-+#endif /* __DARWIN_UNIX03 */
- f = _PATH_TMP;
- (void)snprintf(name, MAXPATHLEN, "%s%sXXXXXX", f, pfx);
-- if ((f = _mktemp(name)))
-+ if ((f = _mktemp(name))) {
- return(f);
-+ }
-
- sverrno = errno;
- free(name);