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	* time/asctime.c (asctime_internal): New function, derived from asctime_r. Takes additional parameter which is the buffer length. Use snprintf instead sprintf, if it overflows, fail. (asctime_r): Call asctime_internal with 26 as buffer length. (asctime): Call asctime_internal with length of internal buffer. * time/Makefile (tests): Add bug-asctime_r. * time/bug-asctime_r.c: New file.
		
			
				
	
	
		
			34 lines
		
	
	
		
			623 B
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			34 lines
		
	
	
		
			623 B
		
	
	
	
		
			C
		
	
	
	
	
	
#include <errno.h>
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#include <limits.h>
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#include <stdio.h>
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#include <time.h>
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static int
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do_test (void)
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{
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  int result = 0;
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  time_t t = time (NULL);
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  struct tm *tp = localtime (&t);
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  tp->tm_year = INT_MAX;
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  errno = 0;
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  char *s = asctime (tp);
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  if (s != NULL || errno != EOVERFLOW)
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    {
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      puts ("asctime did not fail correctly");
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      result = 1;
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    }
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  char buf[1000];
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  errno = 0;
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  s = asctime_r (tp, buf);
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  if (s != NULL || errno != EOVERFLOW)
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    {
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      puts ("asctime_r did not fail correctly");
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      result = 1;
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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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