138 lines
3.5 KiB
C
138 lines
3.5 KiB
C
/*
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* Copyright (c) Christos Zoulas 2003.
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* All Rights Reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice immediately at the beginning of the file, without modification,
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* this list of conditions, and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <errno.h>
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#include "magic.h"
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static const char *prog;
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static void *
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xrealloc(void *p, size_t n)
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{
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p = realloc(p, n);
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if (p == NULL) {
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(void)fprintf(stderr, "%s ERROR slurping file: %s\n",
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prog, strerror(errno));
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exit(10);
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}
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return p;
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}
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static char *
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slurp(FILE *fp, size_t *final_len)
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{
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size_t len = 256;
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int c;
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char *l = (char *)xrealloc(NULL, len), *s = l;
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for (c = getc(fp); c != EOF; c = getc(fp)) {
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if (s == l + len) {
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l = xrealloc(l, len * 2);
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len *= 2;
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}
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*s++ = c;
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}
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if (s == l + len)
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l = (char *)xrealloc(l, len + 1);
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*s++ = '\0';
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*final_len = s - l;
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l = (char *)xrealloc(l, s - l);
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return l;
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}
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int
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main(int argc, char **argv)
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{
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struct magic_set *ms;
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const char *result;
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size_t result_len, desired_len;
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char *desired = NULL;
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int e = EXIT_FAILURE;
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FILE *fp;
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prog = strrchr(argv[0], '/');
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if (prog)
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prog++;
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else
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prog = argv[0];
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ms = magic_open(MAGIC_NONE);
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if (ms == NULL) {
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(void)fprintf(stderr, "%s: ERROR opening MAGIC_NONE: %s\n",
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prog, strerror(errno));
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return e;
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}
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if (magic_load(ms, NULL) == -1) {
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(void)fprintf(stderr, "%s: ERROR loading with NULL file: %s\n",
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prog, magic_error(ms));
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goto bad;
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}
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if (argc == 1) {
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e = 0;
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goto bad;
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}
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if (argc != 3) {
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(void)fprintf(stderr, "Usage: %s TEST-FILE RESULT\n", prog);
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magic_close(ms);
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goto bad;
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}
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if ((result = magic_file(ms, argv[1])) == NULL) {
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(void)fprintf(stderr, "%s: ERROR loading file %s: %s\n",
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prog, argv[1], magic_error(ms));
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goto bad;
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}
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fp = fopen(argv[2], "r");
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if (fp == NULL) {
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(void)fprintf(stderr, "%s: ERROR opening `%s': %s",
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prog, argv[2], strerror(errno));
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goto bad;
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}
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desired = slurp(fp, &desired_len);
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fclose(fp);
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(void)printf("%s: %s\n", argv[1], result);
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if (strcmp(result, desired) != 0) {
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result_len = strlen(result);
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(void)fprintf(stderr, "%s: ERROR: result was (len %zu)\n%s\n"
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"expected (len %zu)\n%s\n", prog, result_len, result,
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desired_len, desired);
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goto bad;
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}
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e = 0;
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bad:
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free(desired);
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magic_close(ms);
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return e;
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}
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