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authorUlrich Drepper <drepper@redhat.com>2009-02-24 22:45:58 +0000
committerUlrich Drepper <drepper@redhat.com>2009-02-24 22:45:58 +0000
commit82780cbee540bc7e61de6eb165d0f3ec7aa9e549 (patch)
tree26f930a05fd688d5f4d87ad2beed2cd6667bbf3a /time
parent77c571dd9c5abec41d14c6a7684b91af3b703c21 (diff)
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* time/tzset.c (tzset_internal): Correct parsing of TZ envvar.
Diffstat (limited to 'time')
-rw-r--r--time/tzset.c48
1 files changed, 39 insertions, 9 deletions
diff --git a/time/tzset.c b/time/tzset.c
index 45d7051..5cde0bf 100644
--- a/time/tzset.c
+++ b/time/tzset.c
@@ -174,14 +174,26 @@ __tzset_parse_tz (tz)
/* Get the standard timezone name. */
tzbuf = strdupa (tz);
- if (sscanf (tz, "%[^0-9,+-]", tzbuf) != 1 ||
- (l = strlen (tzbuf)) < 3)
+ if (sscanf (tz, "%[A-Za-z]", tzbuf) != 1)
+ {
+ /* Check for the quoted version. */
+ char *wp = tzbuf;
+ if (*tz++ != '<')
+ goto out;
+
+ while (isalnum (*tz) || *tz == '+' || *tz == '-')
+ *wp++ = *tz++;
+ if (*tz++ != '>' || wp - tzbuf < 3)
+ goto out;
+ *wp = '\0';
+ }
+ else if ((l = strlen (tzbuf)) < 3)
goto out;
+ else
+ tz += l;
tz_rules[0].name = __tzstring (tzbuf);
- tz += l;
-
/* Figure out the standard offset from UTC. */
if (*tz == '\0' || (*tz != '+' && *tz != '-' && !isdigit (*tz)))
goto out;
@@ -217,13 +229,31 @@ __tzset_parse_tz (tz)
if (*tz != '\0')
{
char *n = tzbuf + strlen (tzbuf) + 1;
- if (sscanf (tz, "%[^0-9,+-]", n) != 1 ||
- (l = strlen (n)) < 3)
- goto done_names; /* Punt on name, set up the offsets. */
- tz_rules[1].name = __tzstring (n);
+ if (sscanf (tz, "%[A-Za-z]", tzbuf) != 1)
+ {
+ /* Check for the quoted version. */
+ char *wp = tzbuf;
+ const char *rp = tz;
+ if (*rp++ != '<')
+ /* Punt on name, set up the offsets. */
+ goto done_names;
+
+ while (isalnum (*rp) || *rp == '+' || *rp == '-')
+ *wp++ = *rp++;
+ if (*rp++ != '>' || wp - tzbuf < 3)
+ /* Punt on name, set up the offsets. */
+ goto done_names;
+ *wp = '\0';
+ tz = rp;
+ }
+ else if ((l = strlen (tzbuf)) < 3)
+ /* Punt on name, set up the offsets. */
+ goto done_names;
+ else
+ tz += l;
- tz += l;
+ tz_rules[1].name = __tzstring (n);
/* Figure out the DST offset from GMT. */
if (*tz == '-' || *tz == '+')