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/*
* Copyright (c) Christos Zoulas 2003.
* All Rights Reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice immediately at the beginning of the file, without modification,
* this list of conditions, and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <errno.h>
#include "magic.h"
static const char *prog;
static void *
xrealloc(void *p, size_t n)
{
p = realloc(p, n);
if (p == NULL) {
(void)fprintf(stderr, "%s ERROR slurping file: %s\n",
prog, strerror(errno));
exit(10);
}
return p;
}
static char *
slurp(FILE *fp, size_t *final_len)
{
size_t len = 256;
int c;
char *l = xrealloc(NULL, len), *s = l;
for (c = getc(fp); c != EOF; c = getc(fp)) {
if (s == l + len) {
s = l + len;
len *= 2;
l = xrealloc(l, len);
}
*s++ = c;
}
if (s != l && s[-1] == '\n')
s--;
if (s == l + len) {
l = xrealloc(l, len + 1);
s = l + len;
}
*s++ = '\0';
*final_len = s - l;
return xrealloc(l, s - l);
}
int
main(int argc, char **argv)
{
struct magic_set *ms = NULL;
const char *result;
size_t result_len, desired_len;
char *desired = NULL;
int e = EXIT_FAILURE, flags, c;
FILE *fp;
prog = strrchr(argv[0], '/');
if (prog)
prog++;
else
prog = argv[0];
if (argc == 1)
return 0;
flags = 0;
while ((c = getopt(argc, argv, "ek")) != -1)
switch (c) {
case 'e':
flags |= MAGIC_ERROR;
break;
case 'k':
flags |= MAGIC_CONTINUE;
break;
default:
goto usage;
}
argc -= optind;
argv += optind;
if (argc != 2) {
usage:
(void)fprintf(stderr,
"Usage: %s [-ek] TEST-FILE RESULT\n", prog);
goto bad;
}
ms = magic_open(flags);
if (ms == NULL) {
(void)fprintf(stderr, "%s: ERROR opening MAGIC_NONE: %s\n",
prog, strerror(errno));
return e;
}
if (magic_load(ms, NULL) == -1) {
(void)fprintf(stderr, "%s: ERROR loading with NULL file: %s\n",
prog, magic_error(ms));
goto bad;
}
if ((result = magic_file(ms, argv[0])) == NULL) {
(void)fprintf(stderr, "%s: ERROR loading file %s: %s\n",
prog, argv[1], magic_error(ms));
goto bad;
}
fp = fopen(argv[1], "r");
if (fp == NULL) {
(void)fprintf(stderr, "%s: ERROR opening `%s': %s",
prog, argv[1], strerror(errno));
goto bad;
}
desired = slurp(fp, &desired_len);
fclose(fp);
(void)printf("%s: %s\n", argv[0], result);
if (strcmp(result, desired) != 0) {
result_len = strlen(result);
(void)fprintf(stderr, "%s: ERROR: result was (len %zu)\n%s\n"
"expected (len %zu)\n%s\n", prog, result_len, result,
desired_len, desired);
goto bad;
}
e = 0;
bad:
free(desired);
if (ms)
magic_close(ms);
return e;
}
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