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 33 static void * 34 xrealloc(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 44 static char * 45 slurp(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 67 int 68 main(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