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fix handling of overly-long TZ environment variable values

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the rest of the code is not prepared to handle an empty TZ string, so
falling back to __gmt ("GMT"), just as if TZ had been blank or unset,
is the preferable action.
This commit is contained in:
Rich Felker 2013-11-08 20:50:59 -05:00
commit 1d0d2df609
1 changed files with 1 additions and 1 deletions
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src/time/__tz.c
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@ -138,7 +138,7 @@ static void do_tzset()
* free so as not to pull it into static programs. Growth
* strategy makes it so free would have minimal benefit anyway. */
i = strlen(s);
if (i > PATH_MAX+1) s = "", i = 0;
if (i > PATH_MAX+1) s = __gmt, i = 3;
if (i >= old_tz_size) {
old_tz_size *= 2;
if (i >= old_tz_size) old_tz_size = i+1;