diff options
| -rw-r--r-- | libc/misc/time/time.c | 1 | ||||
| -rw-r--r-- | test/time/tst-ctime.c | 44 |
2 files changed, 45 insertions, 0 deletions
diff --git a/libc/misc/time/time.c b/libc/misc/time/time.c index 758a737fd..ff44892a8 100644 --- a/libc/misc/time/time.c +++ b/libc/misc/time/time.c @@ -479,6 +479,7 @@ char *ctime(const time_t *t) * localtime's static buffer: */ struct tm xtm; + memset(&xtm, 0, sizeof(xtm)); return asctime(localtime_r(t, &xtm)); } diff --git a/test/time/tst-ctime.c b/test/time/tst-ctime.c new file mode 100644 index 000000000..91d827aa2 --- /dev/null +++ b/test/time/tst-ctime.c @@ -0,0 +1,44 @@ +/* vi: set sw=4 ts=4: */ +/* testcase for ctime(3) with large time + * Copyright (C) 2010 David A Ramos <daramos@gustav.stanford.edu> + * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. + */ + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <time.h> + +#define MAX_POSITIVE(type) (~0 & ~((type) 1 << (sizeof(type)*8 - 1))) + +int do_test(int argc, char **argv) { + char *correct = 0, *s; + int status; + + /* need a very high positive number (e.g., max - 1024) */ + time_t test = MAX_POSITIVE(time_t) - 1024; + + s = asctime(localtime(&test)); + + if (s) { + // copy static buffer to heap + correct = malloc(strlen(s)+1); + strcpy(correct, s); + } + + s = ctime(&test); + + printf("ANSI:\t%suClibc:\t%s", correct, s); + + if (s != correct && strcmp(correct, s)) + status = EXIT_FAILURE; + else + status = EXIT_SUCCESS; + + if (correct) + free(correct); + + return status; +} + +#include <test-skeleton.c> |