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* build-aux/gendocs.sh (version): * doc/gendocs_template: * doc/gendocs_template_min: * doc/gnulib.texi: * lib/version-etc.c (COPYRIGHT_YEAR): Update copyright dates by hand in templates and the like. * all files: Run 'make update-copyright'.
112 lines
2.9 KiB
C
112 lines
2.9 KiB
C
/*
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* Copyright (C) 2006-2007, 2010-2017 Free Software Foundation, Inc.
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* Written by Simon Josefsson
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include <config.h>
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#include "read-file.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <sys/stat.h>
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#define FILE1 "/etc/resolv.conf"
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#define FILE2 "/dev/null"
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int
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main (void)
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{
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struct stat statbuf;
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int err = 0;
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/* We can perform the test only if the file exists and is readable.
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Test whether it exists, then assume it is world-readable. */
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if (stat (FILE1, &statbuf) >= 0)
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{
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size_t len;
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char *out = read_file (FILE1, &len);
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if (!out)
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{
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perror ("Could not read file");
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err = 1;
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}
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else
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{
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if (out[len] != '\0')
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{
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perror ("BAD: out[len] not zero");
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err = 1;
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}
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if (S_ISREG (statbuf.st_mode))
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{
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/* FILE1 is a regular file or a symlink to a regular file. */
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if (len != statbuf.st_size)
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{
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fprintf (stderr, "Read %lu from %s...\n",
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(unsigned long) len, FILE1);
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err = 1;
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}
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}
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else
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{
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/* Assume FILE1 is not empty. */
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if (len == 0)
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{
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fprintf (stderr, "Read nothing from %s\n", FILE1);
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err = 1;
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}
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}
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free (out);
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}
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}
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/* We can perform the test only if the file exists and is readable.
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Test whether it exists, then assume it is world-readable. */
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if (stat (FILE2, &statbuf) >= 0)
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{
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size_t len;
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char *out = read_file (FILE2, &len);
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if (!out)
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{
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perror ("Could not read file");
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err = 1;
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}
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else
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{
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if (out[len] != '\0')
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{
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perror ("BAD: out[len] not zero");
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err = 1;
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}
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/* /dev/null should always be empty. Ignore statbuf.st_size, since it
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is not a regular file. */
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if (len != 0)
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{
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fprintf (stderr, "Read %lu from %s...\n",
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(unsigned long) len, FILE2);
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err = 1;
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}
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free (out);
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}
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}
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return err;
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}
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