diff options
Diffstat (limited to 'time')
| -rw-r--r-- | time/mktime.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/time/mktime.c b/time/mktime.c index 5f3f3f23f8..101c197851 100644 --- a/time/mktime.c +++ b/time/mktime.c @@ -1,5 +1,5 @@ /* Convert a `struct tm' to a time_t value. - Copyright (C) 1993, 94, 95, 96, 97, 98, 99 Free Software Foundation, Inc. + Copyright (C) 1993-1999, 2002 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Paul Eggert (eggert@twinsun.com). @@ -246,7 +246,11 @@ __mktime_internal (struct tm *tp, int mon_years = mon / 12 - negative_mon_remainder; int year = year_requested + mon_years; - /* The other values need not be in range: + /* Only years after 1970 are defined. */ + if (year < 70) + return -1; + + /* The other values need not be in range: the remaining code handles minor overflows correctly, assuming int and time_t arithmetic wraps around. Major overflows are caught at the end. */ |