1 /* $NetBSD: asn1_gen.c,v 1.2 2017/01/28 21:31:45 christos Exp $ */ 2 3 /* 4 * Copyright (c) 2005 Kungliga Tekniska Hgskolan 5 * (Royal Institute of Technology, Stockholm, Sweden). 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * 3. Neither the name of the Institute nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 */ 35 36 #include "der_locl.h" 37 #include <krb5/com_err.h> 38 #include <sys/types.h> 39 #include <sys/stat.h> 40 #include <ctype.h> 41 #include <krb5/getarg.h> 42 #include <krb5/hex.h> 43 #include <err.h> 44 45 __RCSID("$NetBSD: asn1_gen.c,v 1.2 2017/01/28 21:31:45 christos Exp $"); 46 47 static int 48 doit(const char *fn) 49 { 50 char buf[2048]; 51 char *fnout = NULL; 52 const char *bname; 53 unsigned long line = 0; 54 FILE *f, *fout; 55 size_t offset = 0; 56 57 f = fopen(fn, "r"); 58 if (f == NULL) 59 err(1, "fopen"); 60 61 bname = strrchr(fn, '/'); 62 if (bname) 63 bname++; 64 else 65 bname = fn; 66 67 if (asprintf(&fnout, "%s.out", bname) < 0 || fnout == NULL) 68 errx(1, "malloc"); 69 70 fout = fopen(fnout, "w"); 71 if (fout == NULL) 72 err(1, "fopen: output file"); 73 74 while (fgets(buf, sizeof(buf), f) != NULL) { 75 char *ptr, *class, *type, *tag, *length, *data, *foo; 76 int ret, l, c, ty, ta; 77 unsigned char p[6], *pdata; 78 size_t sz; 79 80 line++; 81 82 buf[strcspn(buf, "\r\n")] = '\0'; 83 if (buf[0] == '#' || buf[0] == '\0') 84 continue; 85 86 ptr = buf; 87 while (isspace((unsigned char)*ptr)) 88 ptr++; 89 90 class = strtok_r(ptr, " \t\n", &foo); 91 if (class == NULL) errx(1, "class missing on line %lu", line); 92 type = strtok_r(NULL, " \t\n", &foo); 93 if (type == NULL) errx(1, "type missing on line %lu", line); 94 tag = strtok_r(NULL, " \t\n", &foo); 95 if (tag == NULL) errx(1, "tag missing on line %lu", line); 96 length = strtok_r(NULL, " \t\n", &foo); 97 if (length == NULL) errx(1, "length missing on line %lu", line); 98 data = strtok_r(NULL, " \t\n", &foo); 99 100 c = der_get_class_num(class); 101 if (c == -1) errx(1, "no valid class on line %lu", line); 102 ty = der_get_type_num(type); 103 if (ty == -1) errx(1, "no valid type on line %lu", line); 104 ta = der_get_tag_num(tag); 105 if (ta == -1) 106 ta = atoi(tag); 107 108 l = atoi(length); 109 110 printf("line: %3lu offset: %3lu class: %d type: %d " 111 "tag: %3d length: %3d %s\n", 112 line, (unsigned long)offset, c, ty, ta, l, 113 data ? "<have data>" : "<no data>"); 114 115 ret = der_put_length_and_tag(p + sizeof(p) - 1, sizeof(p), 116 l, 117 c, 118 ty, 119 ta, 120 &sz); 121 if (ret) 122 errx(1, "der_put_length_and_tag: %d", ret); 123 124 if (fwrite(p + sizeof(p) - sz , sz, 1, fout) != 1) 125 err(1, "fwrite length/tag failed"); 126 offset += sz; 127 128 if (data) { 129 size_t datalen; 130 131 datalen = strlen(data) / 2; 132 pdata = emalloc(sz); 133 134 if (hex_decode(data, pdata, datalen) != datalen) 135 errx(1, "failed to decode data"); 136 137 if (fwrite(pdata, datalen, 1, fout) != 1) 138 err(1, "fwrite data failed"); 139 offset += datalen; 140 141 free(pdata); 142 } 143 } 144 printf("line: eof offset: %lu\n", (unsigned long)offset); 145 146 fclose(fout); 147 fclose(f); 148 return 0; 149 } 150 151 152 static int version_flag; 153 static int help_flag; 154 struct getargs args[] = { 155 { "version", 0, arg_flag, &version_flag, NULL, NULL }, 156 { "help", 0, arg_flag, &help_flag, NULL, NULL } 157 }; 158 int num_args = sizeof(args) / sizeof(args[0]); 159 160 static void 161 usage(int code) 162 { 163 arg_printusage(args, num_args, NULL, "parse-file"); 164 exit(code); 165 } 166 167 int 168 main(int argc, char **argv) 169 { 170 int optidx = 0; 171 172 setprogname (argv[0]); 173 174 if(getarg(args, num_args, argc, argv, &optidx)) 175 usage(1); 176 if(help_flag) 177 usage(0); 178 if(version_flag) { 179 print_version(NULL); 180 exit(0); 181 } 182 argv += optidx; 183 argc -= optidx; 184 if (argc != 1) 185 usage (1); 186 187 return doit (argv[0]); 188 } 189
Indexes created Sat Feb 28 05:31:39 UTC 2026