1 /* 2 * Copyright (c) 2016 Thomas Pornin <pornin@bolet.org> 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining 5 * a copy of this software and associated documentation files (the 6 * "Software"), to deal in the Software without restriction, including 7 * without limitation the rights to use, copy, modify, merge, publish, 8 * distribute, sublicense, and/or sell copies of the Software, and to 9 * permit persons to whom the Software is furnished to do so, subject to 10 * the following conditions: 11 * 12 * The above copyright notice and this permission notice shall be 13 * included in all copies or substantial portions of the Software. 14 * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 18 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 19 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 20 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 21 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 22 * SOFTWARE. 23 */ 24 25 #include <stdio.h> 26 #include <stdlib.h> 27 #include <string.h> 28 #include <stdint.h> 29 #include <errno.h> 30 31 #include "brssl.h" 32 #include "bearssl.h" 33 34 static void 35 print_blob(const char *name, const unsigned char *buf, size_t len) 36 { 37 size_t u; 38 39 printf("\nstatic const unsigned char %s[] = {", name); 40 for (u = 0; u < len; u ++) { 41 if (u != 0) { 42 printf(","); 43 } 44 if (u % 12 == 0) { 45 printf("\n\t"); 46 } else { 47 printf(" "); 48 } 49 printf("0x%02X", buf[u]); 50 } 51 printf("\n};\n"); 52 } 53 54 static void 55 usage_chain(void) 56 { 57 fprintf(stderr, 58 "usage: brssl chain [ options ] file...\n"); 59 fprintf(stderr, 60 "options:\n"); 61 fprintf(stderr, 62 " -q suppress verbose messages\n"); 63 } 64 65 /* see brssl.h */ 66 int 67 do_chain(int argc, char *argv[]) 68 { 69 int retcode; 70 int verbose; 71 int i, num_files; 72 long k, ctr; 73 74 retcode = 0; 75 verbose = 1; 76 num_files = 0; 77 for (i = 0; i < argc; i ++) { 78 const char *arg; 79 80 arg = argv[i]; 81 if (arg[0] != '-') { 82 num_files ++; 83 continue; 84 } 85 argv[i] = NULL; 86 if (eqstr(arg, "-v") || eqstr(arg, "-verbose")) { 87 verbose = 1; 88 } else if (eqstr(arg, "-q") || eqstr(arg, "-quiet")) { 89 verbose = 0; 90 } else { 91 fprintf(stderr, "ERROR: unknown option: '%s'\n", arg); 92 usage_chain(); 93 goto chain_exit_error; 94 } 95 } 96 if (num_files == 0) { 97 fprintf(stderr, "ERROR: no certificate file provided\n"); 98 usage_chain(); 99 goto chain_exit_error; 100 } 101 102 ctr = 0; 103 for (i = 0; i < argc; i ++) { 104 const char *fname; 105 br_x509_certificate *xcs; 106 size_t u, num; 107 108 fname = argv[i]; 109 if (fname == NULL) { 110 continue; 111 } 112 if (verbose) { 113 fprintf(stderr, "Reading file '%s': ", fname); 114 fflush(stderr); 115 } 116 xcs = read_certificates(fname, &num); 117 if (xcs == NULL) { 118 goto chain_exit_error; 119 } 120 if (verbose) { 121 fprintf(stderr, "%lu certificate%s\n", 122 (unsigned long)num, num > 1 ? "s" : ""); 123 } 124 for (u = 0; u < num; u ++) { 125 char tmp[50]; 126 127 sprintf(tmp, "CERT%ld", ctr ++); 128 print_blob(tmp, xcs[u].data, xcs[u].data_len); 129 xfree(xcs[u].data); 130 } 131 xfree(xcs); 132 } 133 134 printf("\nstatic const br_x509_certificate CHAIN[] = {"); 135 for (k = 0; k < ctr; k ++) { 136 if (k != 0) { 137 printf(","); 138 } 139 printf("\n\t{ (unsigned char *)CERT%ld, sizeof CERT%ld }", 140 k, k); 141 } 142 printf("\n};\n"); 143 printf("\n#define CHAIN_LEN %ld\n", ctr); 144 145 /* 146 * Release allocated structures. 147 */ 148 chain_exit: 149 return retcode; 150 151 chain_exit_error: 152 retcode = -1; 153 goto chain_exit; 154 } 155