diff options
Diffstat (limited to 'time/tzset.c')
| -rw-r--r-- | time/tzset.c | 38 |
1 files changed, 18 insertions, 20 deletions
diff --git a/time/tzset.c b/time/tzset.c index d1c2c091a5..d3625fe9dd 100644 --- a/time/tzset.c +++ b/time/tzset.c @@ -33,7 +33,7 @@ extern int __use_tzfile; extern void __tzfile_read __P ((const char *file)); extern void __tzfile_default __P ((const char *std, const char *dst, long int stdoff, long int dstoff)); -extern const char * __tzstring __P ((const char *string)); +extern char * __tzstring __P ((const char *string)); extern int __tz_compute __P ((time_t timer, const struct tm *tm)); char *__tzname[2] = { (char *) "GMT", (char *) "GMT" }; @@ -76,7 +76,7 @@ static tz_rule tz_rules[2]; static int compute_change __P ((tz_rule *rule, int year)); /* Header for a list of buffers containing time zone strings. */ -struct tzstring_head +struct tzstring_head { struct tzstring_head *next; /* The buffer itself immediately follows the header. @@ -98,7 +98,7 @@ static size_t tzstring_last_buffer_size = sizeof tzstring_list.data; /* Allocate a time zone string with given contents. The string will never be moved or deallocated. However, its contents may be shared with other such strings. */ -const char * +char * __tzstring (string) const char *string; { @@ -109,7 +109,7 @@ __tzstring (string) /* Look through time zone string list for a duplicate of this one. */ for (h = &tzstring_list.head; ; h = h->next) { - for (p = (char *) (h + 1); p[0] | p[1]; p++) + for (p = (char *) (h + 1); p[0] | p[1]; ++p) if (strcmp (p, string) == 0) return p; if (! h->next) @@ -118,7 +118,7 @@ __tzstring (string) /* No duplicate was found. Copy to the end of this buffer if there's room; otherwise, append a large-enough new buffer to the list and use it. */ - p++; + ++p; needed = strlen (string) + 2; /* Need 2 trailing '\0's after last string. */ if ((size_t) ((char *) (h + 1) + tzstring_last_buffer_size - p) < needed) @@ -133,8 +133,7 @@ __tzstring (string) p = (char *) (h + 1); } - strncpy (p, string, needed); - return p; + return strncpy (p, string, needed); } static char *old_tz = NULL; @@ -304,6 +303,18 @@ __tzset_internal (always) if (l < 2 && *tz == ':') ++tz; } + if (*tz == '\0' || (tz[0] == ',' && tz[1] == '\0')) + { + /* There is no rule. See if there is a default rule file. */ + __tzfile_default (tz_rules[0].name, tz_rules[1].name, + tz_rules[0].offset, tz_rules[1].offset); + if (__use_tzfile) + { + free (old_tz); + old_tz = NULL; + return; + } + } } else /* There is no DST. */ @@ -312,19 +323,6 @@ __tzset_internal (always) done_names: free (tzbuf); - if (*tz == '\0' || (tz[0] == ',' && tz[1] == '\0')) - { - /* There is no rule. See if there is a default rule file. */ - __tzfile_default (tz_rules[0].name, tz_rules[1].name, - tz_rules[0].offset, tz_rules[1].offset); - if (__use_tzfile) - { - free (old_tz); - old_tz = NULL; - return; - } - } - /* Figure out the standard <-> DST rules. */ for (whichrule = 0; whichrule < 2; ++whichrule) { |