1 /* $NetBSD: test.c,v 1.1.1.6 2021/04/09 18:58:02 christos Exp $ */ 2 3 /* 4 * Copyright (c) Christos Zoulas 2003. 5 * All Rights Reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice immediately at the beginning of the file, without modification, 12 * this list of conditions, and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 21 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30 #include <stdio.h> 31 #include <stdlib.h> 32 #include <string.h> 33 #include <errno.h> 34 35 #include "magic.h" 36 37 static const char *prog; 38 39 static void * 40 xrealloc(void *p, size_t n) 41 { 42 p = realloc(p, n); 43 if (p == NULL) { 44 (void)fprintf(stderr, "%s ERROR slurping file: %s\n", 45 prog, strerror(errno)); 46 exit(10); 47 } 48 return p; 49 } 50 51 static char * 52 slurp(FILE *fp, size_t *final_len) 53 { 54 size_t len = 256; 55 int c; 56 char *l = (char *)xrealloc(NULL, len), *s = l; 57 58 for (c = getc(fp); c != EOF; c = getc(fp)) { 59 if (s == l + len) { 60 l = xrealloc(l, len * 2); 61 len *= 2; 62 } 63 *s++ = c; 64 } 65 if (s == l + len) 66 l = (char *)xrealloc(l, len + 1); 67 *s++ = '\0'; 68 69 *final_len = s - l; 70 l = (char *)xrealloc(l, s - l); 71 return l; 72 } 73 74 int 75 main(int argc, char **argv) 76 { 77 struct magic_set *ms; 78 const char *result; 79 size_t result_len, desired_len; 80 char *desired; 81 int i, e = EXIT_FAILURE; 82 FILE *fp; 83 84 85 prog = strrchr(argv[0], '/'); 86 if (prog) 87 prog++; 88 else 89 prog = argv[0]; 90 91 ms = magic_open(MAGIC_NONE); 92 if (ms == NULL) { 93 (void)fprintf(stderr, "%s: ERROR opening MAGIC_NONE: %s\n", 94 prog, strerror(errno)); 95 return e; 96 } 97 if (magic_load(ms, NULL) == -1) { 98 (void)fprintf(stderr, "%s: ERROR loading with NULL file: %s\n", 99 prog, magic_error(ms)); 100 goto bad; 101 } 102 103 if (argc == 1) { 104 e = 0; 105 goto bad; 106 } 107 108 if (argc != 3) { 109 (void)fprintf(stderr, "Usage: %s TEST-FILE RESULT\n", prog); 110 magic_close(ms); 111 goto bad; 112 } 113 if ((result = magic_file(ms, argv[1])) == NULL) { 114 (void)fprintf(stderr, "%s: ERROR loading file %s: %s\n", 115 prog, argv[1], magic_error(ms)); 116 goto bad; 117 } 118 fp = fopen(argv[2], "r"); 119 if (fp == NULL) { 120 (void)fprintf(stderr, "%s: ERROR opening `%s': %s", 121 prog, argv[2], strerror(errno)); 122 goto bad; 123 } 124 desired = slurp(fp, &desired_len); 125 fclose(fp); 126 (void)printf("%s: %s\n", argv[1], result); 127 if (strcmp(result, desired) != 0) { 128 result_len = strlen(result); 129 (void)fprintf(stderr, "%s: ERROR: result was (len %zu)\n%s\n" 130 "expected (len %zu)\n%s\n", prog, result_len, result, 131 desired_len, desired); 132 goto bad; 133 } 134 e = 0; 135 bad: 136 magic_close(ms); 137 return e; 138 } 139