1 /* crypto/buffer/buf_str.c */ 2 /* ==================================================================== 3 * Copyright (c) 2007 The OpenSSL Project. 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 * 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in 14 * the documentation and/or other materials provided with the 15 * distribution. 16 * 17 * 3. All advertising materials mentioning features or use of this 18 * software must display the following acknowledgment: 19 * "This product includes software developed by the OpenSSL Project 20 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" 21 * 22 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to 23 * endorse or promote products derived from this software without 24 * prior written permission. For written permission, please contact 25 * licensing (at) OpenSSL.org. 26 * 27 * 5. Products derived from this software may not be called "OpenSSL" 28 * nor may "OpenSSL" appear in their names without prior written 29 * permission of the OpenSSL Project. 30 * 31 * 6. Redistributions of any form whatsoever must retain the following 32 * acknowledgment: 33 * "This product includes software developed by the OpenSSL Project 34 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" 35 * 36 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY 37 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 38 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 39 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR 40 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 41 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 42 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 43 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 44 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 45 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 46 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 47 * OF THE POSSIBILITY OF SUCH DAMAGE. 48 * ==================================================================== 49 * 50 * This product includes cryptographic software written by Eric Young 51 * (eay (at) cryptsoft.com). This product includes software written by Tim 52 * Hudson (tjh (at) cryptsoft.com). 53 * 54 */ 55 56 #include <stdio.h> 57 #include "cryptlib.h" 58 #include <openssl/buffer.h> 59 60 char *BUF_strdup(const char *str) 61 { 62 if (str == NULL) return(NULL); 63 return BUF_strndup(str, strlen(str)); 64 } 65 66 char *BUF_strndup(const char *str, size_t siz) 67 { 68 char *ret; 69 70 if (str == NULL) return(NULL); 71 72 ret=OPENSSL_malloc(siz+1); 73 if (ret == NULL) 74 { 75 BUFerr(BUF_F_BUF_STRNDUP,ERR_R_MALLOC_FAILURE); 76 return(NULL); 77 } 78 BUF_strlcpy(ret,str,siz+1); 79 return(ret); 80 } 81 82 void *BUF_memdup(const void *data, size_t siz) 83 { 84 void *ret; 85 86 if (data == NULL) return(NULL); 87 88 ret=OPENSSL_malloc(siz); 89 if (ret == NULL) 90 { 91 BUFerr(BUF_F_BUF_MEMDUP,ERR_R_MALLOC_FAILURE); 92 return(NULL); 93 } 94 return memcpy(ret, data, siz); 95 } 96 97 size_t BUF_strlcpy(char *dst, const char *src, size_t size) 98 { 99 size_t l = 0; 100 for(; size > 1 && *src; size--) 101 { 102 *dst++ = *src++; 103 l++; 104 } 105 if (size) 106 *dst = '\0'; 107 return l + strlen(src); 108 } 109 110 size_t BUF_strlcat(char *dst, const char *src, size_t size) 111 { 112 size_t l = 0; 113 for(; size > 0 && *dst; size--, dst++) 114 l++; 115 return l + BUF_strlcpy(dst, src, size); 116 } 117
