X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=src%2Ftime%2F__tz.c;h=3e2fcdcbb6a48d000497e2bd36234a2e9c88f0cf;hb=937822abb6ac48880939be3c60e6b57bddf62cf6;hp=09a6317e6b2fbf236925e59f770ac3ff4c4b5989;hpb=1f0c7cb1cc2170bf230623dc0b57d9a9f001af08;p=musl

diff --git a/src/time/__tz.c b/src/time/__tz.c
index 09a6317e..3e2fcdcb 100644
--- a/src/time/__tz.c
+++ b/src/time/__tz.c
@@ -4,6 +4,7 @@
 #include <stdlib.h>
 #include <string.h>
 #include <sys/mman.h>
+#include <ctype.h>
 #include "libc.h"
 #include "lock.h"
 #include "fork_impl.h"
@@ -154,10 +155,21 @@ static void do_tzset()
 	}
 	if (old_tz) memcpy(old_tz, s, i+1);
 
+	int posix_form = 0;
+	if (*s != ':') {
+		p = s;
+		char dummy_name[TZNAME_MAX+1];
+		getname(dummy_name, &p);
+		if (p!=s && (*p == '+' || *p == '-' || isdigit(*p)
+		             || !strcmp(dummy_name, "UTC")
+		             || !strcmp(dummy_name, "GMT")))
+			posix_form = 1;
+	}	
+
 	/* Non-suid can use an absolute tzfile pathname or a relative
 	 * pathame beginning with "."; in secure mode, only the
 	 * standard path will be searched. */
-	if (*s == ':' || ((p=strchr(s, '/')) && !memchr(s, ',', p-s))) {
+	if (!posix_form) {
 		if (*s == ':') s++;
 		if (*s == '/' || *s == '.') {
 			if (!libc.secure || !strcmp(s, "/etc/localtime"))