1/*************************************************************************** 2 * _ _ ____ _ 3 * Project ___| | | | _ \| | 4 * / __| | | | |_) | | 5 * | (__| |_| | _ <| |___ 6 * \___|\___/|_| \_\_____| 7 * 8 * Copyright (C) 1998 - 2011, Daniel Stenberg, <daniel@haxx.se>, et al. 9 * 10 * This software is licensed as described in the file COPYING, which 11 * you should have received as part of this distribution. The terms 12 * are also available at http://curl.haxx.se/docs/copyright.html. 13 * 14 * You may opt to use, copy, modify, merge, publish, distribute and/or sell 15 * copies of the Software, and permit persons to whom the Software is 16 * furnished to do so, under the terms of the COPYING file. 17 * 18 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY 19 * KIND, either express or implied. 20 * 21 ***************************************************************************/ 22 23#include "setup.h" 24 25#ifdef HAVE_STRINGS_H 26#include <strings.h> 27#endif 28 29#include "strequal.h" 30 31/* 32 * @unittest: 1301 33 */ 34int curl_strequal(const char *first, const char *second) 35{ 36#if defined(HAVE_STRCASECMP) 37 return !(strcasecmp)(first, second); 38#elif defined(HAVE_STRCMPI) 39 return !(strcmpi)(first, second); 40#elif defined(HAVE_STRICMP) 41 return !(stricmp)(first, second); 42#else 43 while(*first && *second) { 44 if(toupper(*first) != toupper(*second)) { 45 break; 46 } 47 first++; 48 second++; 49 } 50 return toupper(*first) == toupper(*second); 51#endif 52} 53 54/* 55 * @unittest: 1301 56 */ 57int curl_strnequal(const char *first, const char *second, size_t max) 58{ 59#if defined(HAVE_STRNCASECMP) 60 return !strncasecmp(first, second, max); 61#elif defined(HAVE_STRNCMPI) 62 return !strncmpi(first, second, max); 63#elif defined(HAVE_STRNICMP) 64 return !strnicmp(first, second, max); 65#else 66 while(*first && *second && max) { 67 if(toupper(*first) != toupper(*second)) { 68 break; 69 } 70 max--; 71 first++; 72 second++; 73 } 74 if(0 == max) 75 return 1; /* they are equal this far */ 76 77 return toupper(*first) == toupper(*second); 78#endif 79} 80 81#ifndef HAVE_STRLCAT 82/* 83 * The strlcat() function appends the NUL-terminated string src to the end 84 * of dst. It will append at most size - strlen(dst) - 1 bytes, NUL-termi- 85 * nating the result. 86 * 87 * The strlcpy() and strlcat() functions return the total length of the 88 * string they tried to create. For strlcpy() that means the length of src. 89 * For strlcat() that means the initial length of dst plus the length of 90 * src. While this may seem somewhat confusing it was done to make trunca- 91 * tion detection simple. 92 * 93 * 94 */ 95size_t Curl_strlcat(char *dst, const char *src, size_t siz) 96{ 97 char *d = dst; 98 const char *s = src; 99 size_t n = siz; 100 union { 101 ssize_t sig; 102 size_t uns; 103 } dlen; 104 105 /* Find the end of dst and adjust bytes left but don't go past end */ 106 while(n-- != 0 && *d != '\0') 107 d++; 108 dlen.sig = d - dst; 109 n = siz - dlen.uns; 110 111 if(n == 0) 112 return(dlen.uns + strlen(s)); 113 while(*s != '\0') { 114 if(n != 1) { 115 *d++ = *s; 116 n--; 117 } 118 s++; 119 } 120 *d = '\0'; 121 122 return(dlen.uns + (s - src)); /* count does not include NUL */ 123} 124#endif 125