diff options
Diffstat (limited to 'lib/gl/tests/test-read-file.c')
-rw-r--r-- | lib/gl/tests/test-read-file.c | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/lib/gl/tests/test-read-file.c b/lib/gl/tests/test-read-file.c new file mode 100644 index 0000000000..392c4f7eaf --- /dev/null +++ b/lib/gl/tests/test-read-file.c @@ -0,0 +1,97 @@ +/* + * Copyright (C) 2006-2007 Free Software Foundation + * Written by Simon Josefsson + * + * 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/>. */ + +#include <config.h> + +#include "read-file.h" + +#include <stdio.h> +#include <stdlib.h> +#include <sys/stat.h> + +#define FILE1 "/etc/resolv.conf" +#define FILE2 "/dev/null" + +int +main (void) +{ + struct stat statbuf; + int err = 0; + + /* We can perform the test only if the file exists and is readable. + Test whether it exists, then assume it is world-readable. */ + if (stat (FILE1, &statbuf) >= 0) + { + size_t len; + char *out = read_file (FILE1, &len); + + if (!out) + { + perror ("Could not read file"); + err = 1; + } + else + { + if (out[len] != '\0') + { + perror ("BAD: out[len] not zero"); + err = 1; + } + + /* Assume FILE1 is a regular file or a symlink to a regular file. */ + if (len != statbuf.st_size) + { + fprintf (stderr, "Read %ld from %s...\n", (unsigned long) len, FILE1); + err = 1; + } + free (out); + } + } + + /* We can perform the test only if the file exists and is readable. + Test whether it exists, then assume it is world-readable. */ + if (stat (FILE2, &statbuf) >= 0) + { + size_t len; + char *out = read_file (FILE2, &len); + + if (!out) + { + perror ("Could not read file"); + err = 1; + } + else + { + if (out[len] != '\0') + { + perror ("BAD: out[len] not zero"); + err = 1; + } + + /* /dev/null should always be empty. Ignore statbuf.st_size, since it + is not a regular file. */ + if (len != 0) + { + fprintf (stderr, "Read %ld from %s...\n", (unsigned long) len, FILE2); + err = 1; + } + free (out); + } + } + + return err; +} |