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b1a173f75e
2003-01-19 Ulrich Drepper <drepper@redhat.com> * time/strftime.c (my_strftime): Handle very large width specifications for numeric values correctly. Improve checks for overflow. * time/Makefile (tests): Add tst-strftime. * time/tst-strftime.c: New file.
75 lines
1.3 KiB
C
75 lines
1.3 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <time.h>
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static struct
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{
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const char *fmt;
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size_t min;
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size_t max;
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} tests[] =
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{
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{ "%2000Y", 2000, 4000 },
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{ "%02000Y", 2000, 4000 },
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{ "%_2000Y", 2000, 4000 },
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{ "%-2000Y", 2000, 4000 },
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};
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#define ntests (sizeof (tests) / sizeof (tests[0]))
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static int
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do_test (void)
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{
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size_t cnt;
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int result = 0;
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time_t tnow = time (NULL);
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struct tm *now = localtime (&tnow);
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for (cnt = 0; cnt < ntests; ++cnt)
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{
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size_t size = 0;
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int res;
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char *buf = NULL;
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do
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{
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size += 500;
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buf = (char *) realloc (buf, size);
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if (buf == NULL)
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{
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puts ("out of memory");
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exit (1);
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}
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res = strftime (buf, size, tests[cnt].fmt, now);
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if (res != 0)
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break;
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}
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while (size < tests[cnt].max);
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if (res == 0)
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{
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printf ("%Zu: %s: res == 0 despite size == %Zu\n",
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cnt, tests[cnt].fmt, size);
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result = 1;
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}
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else if (size < tests[cnt].min)
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{
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printf ("%Zu: %s: size == %Zu was enough\n",
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cnt, tests[cnt].fmt, size);
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result = 1;
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}
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else
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printf ("%Zu: %s: size == %Zu: OK\n", cnt, tests[cnt].fmt, size);
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free (buf);
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}
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return result;
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}
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#define TEST_FUNCTION do_test ()
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#include "../test-skeleton.c"
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