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 "brssl.h" 26 27 /* see brssl.h */ 28 void * 29 xmalloc(size_t len) 30 { 31 void *buf; 32 33 if (len == 0) { 34 return NULL; 35 } 36 buf = malloc(len); 37 if (buf == NULL) { 38 #ifndef _STANDALONE 39 fprintf(stderr, "ERROR: could not allocate %lu byte(s)\n", 40 (unsigned long)len); 41 exit(EXIT_FAILURE); 42 #else 43 ; 44 #endif 45 } 46 return buf; 47 } 48 49 /* see brssl.h */ 50 void 51 xfree(void *buf) 52 { 53 if (buf != NULL) { 54 free(buf); 55 } 56 } 57 58 /* see brssl.h */ 59 void * 60 xblobdup(const void *src, size_t len) 61 { 62 void *buf; 63 64 buf = xmalloc(len); 65 memcpy(buf, src, len); 66 return buf; 67 } 68 69 /* see brssl.h */ 70 char * 71 xstrdup(const void *src) 72 { 73 return xblobdup(src, strlen(src) + 1); 74 } 75 76 /* see brssl.h */ 77 br_x509_pkey * 78 xpkeydup(const br_x509_pkey *pk) 79 { 80 br_x509_pkey *pk2; 81 82 pk2 = xmalloc(sizeof *pk2); 83 pk2->key_type = pk->key_type; 84 switch (pk->key_type) { 85 case BR_KEYTYPE_RSA: 86 pk2->key.rsa.n = xblobdup(pk->key.rsa.n, pk->key.rsa.nlen); 87 pk2->key.rsa.nlen = pk->key.rsa.nlen; 88 pk2->key.rsa.e = xblobdup(pk->key.rsa.e, pk->key.rsa.elen); 89 pk2->key.rsa.elen = pk->key.rsa.elen; 90 break; 91 case BR_KEYTYPE_EC: 92 pk2->key.ec.curve = pk->key.ec.curve; 93 pk2->key.ec.q = xblobdup(pk->key.ec.q, pk->key.ec.qlen); 94 pk2->key.ec.qlen = pk->key.ec.qlen; 95 break; 96 default: 97 #ifndef _STANDALONE 98 fprintf(stderr, "Unknown public key type: %u\n", 99 (unsigned)pk->key_type); 100 exit(EXIT_FAILURE); 101 #else 102 ; 103 #endif 104 } 105 return pk2; 106 } 107 108 /* see brssl.h */ 109 void 110 xfreepkey(br_x509_pkey *pk) 111 { 112 if (pk != NULL) { 113 switch (pk->key_type) { 114 case BR_KEYTYPE_RSA: 115 xfree(pk->key.rsa.n); 116 xfree(pk->key.rsa.e); 117 break; 118 case BR_KEYTYPE_EC: 119 xfree(pk->key.ec.q); 120 break; 121 default: 122 #ifndef _STANDALONE 123 fprintf(stderr, "Unknown public key type: %u\n", 124 (unsigned)pk->key_type); 125 exit(EXIT_FAILURE); 126 #else 127 ; 128 #endif 129 } 130 xfree(pk); 131 } 132 } 133