| 1 | /* crypto/buffer/buf_str.c */
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| 2 | /* ====================================================================
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| 3 | * Copyright (c) 2007 The OpenSSL Project. All rights reserved.
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| 4 | *
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| 5 | * Redistribution and use in source and binary forms, with or without
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| 6 | * modification, are permitted provided that the following conditions
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| 7 | * are met:
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| 8 | *
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| 9 | * 1. Redistributions of source code must retain the above copyright
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| 10 | * notice, this list of conditions and the following disclaimer.
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| 11 | *
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| 12 | * 2. Redistributions in binary form must reproduce the above copyright
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| 13 | * notice, this list of conditions and the following disclaimer in
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| 14 | * the documentation and/or other materials provided with the
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| 15 | * distribution.
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| 16 | *
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| 17 | * 3. All advertising materials mentioning features or use of this
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| 18 | * software must display the following acknowledgment:
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| 19 | * "This product includes software developed by the OpenSSL Project
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| 20 | * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
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| 21 | *
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| 22 | * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
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| 23 | * endorse or promote products derived from this software without
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| 24 | * prior written permission. For written permission, please contact
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| 25 | * licensing@OpenSSL.org.
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| 26 | *
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| 27 | * 5. Products derived from this software may not be called "OpenSSL"
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| 28 | * nor may "OpenSSL" appear in their names without prior written
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| 29 | * permission of the OpenSSL Project.
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| 30 | *
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| 31 | * 6. Redistributions of any form whatsoever must retain the following
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| 32 | * acknowledgment:
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| 33 | * "This product includes software developed by the OpenSSL Project
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| 34 | * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
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| 35 | *
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| 36 | * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
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| 37 | * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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| 38 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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| 39 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
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| 40 | * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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| 41 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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| 42 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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| 43 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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| 44 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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| 45 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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| 46 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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| 47 | * OF THE POSSIBILITY OF SUCH DAMAGE.
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| 48 | * ====================================================================
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| 49 | *
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| 50 | * This product includes cryptographic software written by Eric Young
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| 51 | * (eay@cryptsoft.com). This product includes software written by Tim
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| 52 | * Hudson (tjh@cryptsoft.com).
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| 53 | *
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| 54 | */
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| 55 |
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| 56 | #include <stdio.h>
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| 57 | #include <openssl/cryptlib.h>
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| 58 | #include <openssl/buffer.h>
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| 59 |
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| 60 | char *BUF_strdup(const char *str)
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| 61 | {
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| 62 | if (str == NULL) return(NULL);
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| 63 | return BUF_strndup(str, strlen(str));
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| 64 | }
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| 65 |
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| 66 | char *BUF_strndup(const char *str, size_t siz)
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| 67 | {
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| 68 | char *ret;
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| 69 |
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| 70 | if (str == NULL) return(NULL);
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| 71 |
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| 72 | ret=OPENSSL_malloc(siz+1);
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| 73 | if (ret == NULL)
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| 74 | {
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| 75 | BUFerr(BUF_F_BUF_STRNDUP,ERR_R_MALLOC_FAILURE);
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| 76 | return(NULL);
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| 77 | }
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| 78 | BUF_strlcpy(ret,str,siz+1);
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| 79 | return(ret);
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| 80 | }
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| 81 |
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| 82 | void *BUF_memdup(const void *data, size_t siz)
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| 83 | {
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| 84 | void *ret;
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| 85 |
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| 86 | if (data == NULL) return(NULL);
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| 87 |
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| 88 | ret=OPENSSL_malloc(siz);
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| 89 | if (ret == NULL)
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| 90 | {
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| 91 | BUFerr(BUF_F_BUF_MEMDUP,ERR_R_MALLOC_FAILURE);
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| 92 | return(NULL);
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| 93 | }
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| 94 | return memcpy(ret, data, siz);
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| 95 | }
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| 96 |
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| 97 | size_t BUF_strlcpy(char *dst, const char *src, size_t size)
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| 98 | {
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| 99 | size_t l = 0;
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| 100 | for(; size > 1 && *src; size--)
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| 101 | {
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| 102 | *dst++ = *src++;
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| 103 | l++;
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| 104 | }
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| 105 | if (size)
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| 106 | *dst = '\0';
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| 107 | return l + strlen(src);
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| 108 | }
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| 109 |
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| 110 | size_t BUF_strlcat(char *dst, const char *src, size_t size)
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| 111 | {
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| 112 | size_t l = 0;
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| 113 | for(; size > 0 && *dst; size--, dst++)
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| 114 | l++;
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| 115 | return l + BUF_strlcpy(dst, src, size);
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| 116 | }
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