test.c revision 328875 
1/*
2 * Copyright (c) Christos Zoulas 2003.
3 * All Rights Reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice immediately at the beginning of the file, without modification,
10 *    this list of conditions, and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
19 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 */
27
28#include <stdio.h>
29#include <stdlib.h>
30#include <string.h>
31#include "magic.h"
32
33static void *
34xrealloc(void *p, size_t n)
35{
36	p = realloc(p, n);
37	if (p == NULL) {
38		(void)fprintf(stderr, "ERROR slurping file: out of memory\n");
39		exit(10);
40	}
41	return p;
42}
43
44static char *
45slurp(FILE *fp, size_t *final_len)
46{
47	size_t len = 256;
48	int c;
49	char *l = (char *)xrealloc(NULL, len), *s = l;
50
51	for (c = getc(fp); c != EOF; c = getc(fp)) {
52		if (s == l + len) {
53			l = (char *)xrealloc(l, len * 2);
54			len *= 2;
55		}
56		*s++ = c;
57	}
58	if (s == l + len)
59		l = (char *)xrealloc(l, len + 1);
60	*s++ = '\0';
61
62	*final_len = s - l;
63	l = (char *)xrealloc(l, s - l);
64	return l;
65}
66
67int
68main(int argc, char **argv)
69{
70	struct magic_set *ms;
71	const char *result;
72	char *desired;
73	size_t desired_len;
74	int i;
75	FILE *fp;
76
77	ms = magic_open(MAGIC_NONE);
78	if (ms == NULL) {
79		(void)fprintf(stderr, "ERROR opening MAGIC_NONE: out of memory\n");
80		return 10;
81	}
82	if (magic_load(ms, NULL) == -1) {
83		(void)fprintf(stderr, "ERROR loading with NULL file: %s\n",
84		    magic_error(ms));
85		return 11;
86	}
87
88	if (argc > 1) {
89		if (argc != 3) {
90			(void)fprintf(stderr, "Usage: test TEST-FILE RESULT\n");
91		} else {
92			if ((result = magic_file(ms, argv[1])) == NULL) {
93				(void)fprintf(stderr, "ERROR loading file %s: %s\n", argv[1], magic_error(ms));
94				return 12;
95			} else {
96				fp = fopen(argv[2], "r");
97				if (fp == NULL) {
98					(void)fprintf(stderr, "ERROR opening `%s': ", argv[2]);
99					perror(NULL);
100					return 13;
101				}
102				desired = slurp(fp, &desired_len);
103				fclose(fp);
104				(void)printf("%s: %s\n", argv[1], result);
105                                if (strcmp(result, desired) != 0) {
106					(void)fprintf(stderr, "Error: result was\n%s\nexpected:\n%s\n", result, desired);
107					return 1;
108                                }
109			}
110		}
111	}
112
113	magic_close(ms);
114	return 0;
115}
116