diff options
Diffstat (limited to 'libc/stdtime/localtime.c')
| -rw-r--r-- | libc/stdtime/localtime.c | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/libc/stdtime/localtime.c b/libc/stdtime/localtime.c index d186080bf351..255ff4828a52 100644 --- a/libc/stdtime/localtime.c +++ b/libc/stdtime/localtime.c @@ -5,7 +5,7 @@ #ifndef lint #ifndef NOID -static char elsieid[] = "@(#)localtime.c 8.9"; +static char elsieid[] = "@(#)localtime.c 8.10"; #endif /* !defined NOID */ #endif /* !defined lint */ @@ -1889,6 +1889,10 @@ const long offset; int types[TZ_MAX_TYPES]; int okay; + if (tmp == NULL) { + errno = EINVAL; + return WRONG; + } if (tmp->tm_isdst > 1) tmp->tm_isdst = 1; t = time2(tmp, funcp, offset, &okay); @@ -1960,7 +1964,8 @@ time_t timelocal(tmp) struct tm * const tmp; { - tmp->tm_isdst = -1; /* in case it wasn't initialized */ + if (tmp != NULL) + tmp->tm_isdst = -1; /* in case it wasn't initialized */ return mktime(tmp); } @@ -1968,7 +1973,8 @@ time_t timegm(tmp) struct tm * const tmp; { - tmp->tm_isdst = 0; + if (tmp != NULL) + tmp->tm_isdst = 0; return time1(tmp, gmtsub, 0L); } @@ -1977,7 +1983,8 @@ timeoff(tmp, offset) struct tm * const tmp; const long offset; { - tmp->tm_isdst = 0; + if (tmp != NULL) + tmp->tm_isdst = 0; return time1(tmp, gmtsub, offset); } |