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	strerror, strsignal, and their variants should return unique strings for each known (and, depending on the function, unknown) error/signal. Add tests to verify this for strerror, strerror_r (GNU and XSI compliant variants), and strerror_l (for the C locale), strerrordesc_np, strsignal, sigabbrev_np, and sigdescr_np. Co-authored-by: Adhemerval Zanella <adhemerval.zanella@linaro.org> Reviewed-by: Florian Weimer <fweimer@redhat.com> Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
		
			
				
	
	
		
			74 lines
		
	
	
		
			2.1 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			74 lines
		
	
	
		
			2.1 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
/* Test that strsignal returns unique strings for each signal.
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   Copyright (C) 2025 Free Software Foundation, Inc.
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   This file is part of the GNU C Library.
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   The GNU C Library is free software; you can redistribute it and/or
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   modify it under the terms of the GNU Lesser General Public
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   License as published by the Free Software Foundation; either
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   version 2.1 of the License, or (at your option) any later version.
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   The GNU C Library is distributed in the hope that it will be useful,
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   but WITHOUT ANY WARRANTY; without even the implied warranty of
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   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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   Lesser General Public License for more details.
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   You should have received a copy of the GNU Lesser General Public
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   License along with the GNU C Library; if not, see
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   <https://www.gnu.org/licenses/>.  */
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#include <string.h>
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#include <stdlib.h>
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#include <signal.h>
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#include <support/support.h>
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#include <support/check.h>
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#include "tst-verify-unique-strings.c"
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#define NSTRINGS 257
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static int
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do_test (void)
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{
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  char *string[NSTRINGS];
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  /* Convenient indexing for signal strings from -128 to 128.  */
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  char **sig_str = string + 128;
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  unsetenv ("LANGUAGE");
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  xsetlocale (LC_ALL, "C");
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  for (int i = -128; i <= 128; i++)
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    {
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      sig_str[i] = xstrdup (strsignal (i));
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      if (i > 0 && i <= 31)
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        {
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          /* Signals between 1 and 31 are known.  */
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          TEST_VERIFY_EXIT (strstr (sig_str[i], "Unknown signal ")
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                            == NULL);
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          TEST_VERIFY_EXIT (strstr (sig_str[i], "Real-time signal ")
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                            == NULL);
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        }
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      else if ((i <= 0)
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          || (i > 31 && i < SIGRTMIN)
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          || (i > SIGRTMAX))
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        TEST_VERIFY_EXIT (strstr (sig_str[i], "Unknown signal ")
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                          == sig_str[i]);
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      else if (i >= SIGRTMIN && i <= SIGRTMAX)
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        TEST_VERIFY_EXIT (strstr (sig_str[i], "Real-time signal ")
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                          == sig_str[i]);
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    }
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  VERIFY_UNIQUE_STRINGS (string, NSTRINGS);
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  for (int i = -128; i <= 128; i++)
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    free (sig_str[i]);
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  return 0;
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}
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#include <support/test-driver.c>
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