tests/test-getdomainname.c

   1 /*
   2  * Copyright (C) 2008-2024 Free Software Foundation, Inc.
   3  * Written by Simon Josefsson.
   4  *
   5  * This program is free software: you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation, either version 3 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
  17
  18 #include <config.h>
  19
  20 /* Get getdomainname() declaration.  */
  21 #include <unistd.h>
  22
  23 #include "signature.h"
  24 SIGNATURE_CHECK (getdomainname, int, (char *, size_t));
  25
  26 #include <stdio.h>
  27 #include <string.h>
  28 #include <errno.h>
  29
  30 #define YPMAXDOMAIN 64
  31
  32 #define NODOMAINNAME "magic-gnulib-test-string"
  33
  34 int
  35 main (int argc, _GL_UNUSED char *argv[])
  36 {
  37   char buf[YPMAXDOMAIN];
  38   int rc;
  39
  40   if (strlen (NODOMAINNAME) >= YPMAXDOMAIN)
  41     {
  42       printf ("YPMAXDOMAIN impossibly small?! %d\n", YPMAXDOMAIN);
  43       return 2;
  44     }
  45
  46   strcpy (buf, NODOMAINNAME);
  47
  48   rc = getdomainname (buf, sizeof (buf));
  49
  50   if (rc != 0)
  51     {
  52       printf ("getdomainname failed, rc %d errno %d\n", rc, errno);
  53       return 1;
  54     }
  55
  56   if (strcmp (buf, NODOMAINNAME) == 0)
  57     {
  58       printf ("getdomainname left buffer untouched.\n");
  59       return 1;
  60     }
  61
  62   if (argc > 1)
  63     printf ("domainname: %s\n", buf);
  64
  65   return 0;
  66 }