kc3-lang/gnulib/tests/test-getgroups.c

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• Hash : 54615b95
  Author :
  Date : 2016-02-06T18:11:48
  

  misc: port better to gcc -fsanitize=address
  
  Without these patches, ./configure CFLAGS='-fsanitize=address'
  would compute incorrect values.  This patch fixes some (but not all)
  test failures with recent glibc, with this configuration.
  * m4/acl.m4 (gl_ACL_GET_FILE):
  * m4/calloc.m4 (_AC_FUNC_CALLOC_IF):
  * m4/canonicalize.m4 (gl_FUNC_REALPATH_WORKS):
  * m4/d-ino.m4 (gl_CHECK_TYPE_STRUCT_DIRENT_D_INO):
  * m4/duplocale.m4 (gl_FUNC_DUPLOCALE):
  * m4/getcwd.m4 (gl_FUNC_GETCWD_NULL):
  * m4/getdelim.m4 (gl_FUNC_GETDELIM):
  * m4/getgroups.m4 (gl_FUNC_GETGROUPS):
  * m4/getline.m4 (gl_FUNC_GETLINE):
  * m4/malloc.m4 (_AC_FUNC_MALLOC_IF):
  * m4/realloc.m4 (_AC_FUNC_REALLOC_IF):
  * m4/regex.m4 (gl_REGEX):
  * m4/strndup.m4 (gl_FUNC_STRNDUP):
  * tests/test-calloc-gnu.c (main):
  * tests/test-duplocale.c (main):
  * tests/test-getgroups.c (main):
  * tests/test-getline.c (main):
  * tests/test-inttostr.c (main):
  * tests/test-localename.c (test_locale_name)
  (test_locale_name_thread, test_locale_name_environ)
  (test_locale_name_default):
  * tests/test-regex.c (main):
  * tests/test-setlocale1.c (main):
  * tests/test-stat.h (test_stat_func):
  Free heap-allocated storage before exiting.
  * m4/asm-underscore.m4 (gl_ASM_SYMBOL_PREFIX):
  Don't match *_foo symbols inserted by AddressSanitizer.
  * tests/test-regex.c, tests/test-stat.c: Include stdlib.h, for 'free'.
  

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• tests/test-getgroups.c

• /* Tests of getgroups.
     Copyright (C) 2009-2016 Free Software Foundation, Inc.
  
     This program is free software: you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
     the Free Software Foundation; either version 3 of the License, or
     (at your option) any later version.
  
     This program is distributed in the hope that it will be useful,
     but WITHOUT ANY WARRANTY; without even the implied warranty of
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     GNU General Public License for more details.
  
     You should have received a copy of the GNU General Public License
     along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  
  /* Written by Eric Blake <ebb9@byu.net>, 2009.  */
  
  #include <config.h>
  
  #include <unistd.h>
  
  #include "signature.h"
  SIGNATURE_CHECK (getgroups, int, (int, gid_t[]));
  
  #include <errno.h>
  #include <stdio.h>
  #include <stdlib.h>
  #include <stdint.h>
  
  #include "macros.h"
  
  int
  main (int argc, char **argv _GL_UNUSED)
  {
    int result;
    gid_t *groups;
  
    errno = 0;
    result = getgroups (0, NULL);
    if (result == -1 && errno == ENOSYS)
      {
        fputs ("skipping test: no support for groups\n", stderr);
        return 77;
      }
    ASSERT (0 <= result);
    ASSERT (result + 1 < SIZE_MAX / sizeof *groups);
    groups = malloc ((result + 1) * sizeof *groups);
    ASSERT (groups);
    groups[result] = -1;
    /* Check for EINVAL handling.  Not all processes have supplemental
       groups, and getgroups does not have to return the effective gid,
       so a result of 0 is reasonable.  Also, we can't test for EINVAL
       if result is 1, because of how getgroups treats 0.  */
    if (1 < result)
      {
        errno = 0;
        ASSERT (getgroups (result - 1, groups) == -1);
        ASSERT (errno == EINVAL);
      }
    ASSERT (getgroups (result, groups) == result);
    ASSERT (getgroups (result + 1, groups) == result);
    ASSERT (groups[result] == -1);
    errno = 0;
    ASSERT (getgroups (-1, NULL) == -1);
    ASSERT (errno == EINVAL);
  
    /* The automated unit test, with no arguments, ends here.  However,
       for debugging purposes, you can pass a command-line argument to
       list the returned groups.  */
    if (1 < argc)
      {
        int i;
        for (i = 0; i < result; i++)
          printf ("%d\n", (int) groups[i]);
      }
    free (groups);
    return 0;
  }
  

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