1 /* MIT License 2 * 3 * Copyright (c) 1998 Massachusetts Institute of Technology 4 * Copyright (c) The c-ares project and its contributors 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a copy 7 * of this software and associated documentation files (the "Software"), to deal 8 * in the Software without restriction, including without limitation the rights 9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 10 * copies of the Software, and to permit persons to whom the Software is 11 * furnished to do so, subject to the following conditions: 12 * 13 * The above copyright notice and this permission notice (including the next 14 * paragraph) shall be included in all copies or substantial portions of the 15 * Software. 16 * 17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 20 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 23 * SOFTWARE. 24 * 25 * SPDX-License-Identifier: MIT 26 */ 27 #ifndef HEADER_CARES_STRDUP_H 28 #define HEADER_CARES_STRDUP_H 29 30 #include "ares_setup.h" 31 #include "ares.h" 32 33 char *ares_strdup(const char *s1); 34 35 size_t ares_strlen(const char *str); 36 37 /*! Copy string from source to destination with destination buffer size 38 * provided. The destination is guaranteed to be null terminated, if the 39 * provided buffer isn't large enough, only those bytes from the source that 40 * will fit will be copied. 41 * 42 * \param[out] dest Destination buffer 43 * \param[in] src Source to copy 44 * \param[in] dest_size Size of destination buffer 45 * \return String length. Will be at most dest_size-1 46 */ 47 size_t ares_strcpy(char *dest, const char *src, size_t dest_size); 48 49 ares_bool_t ares_str_isnum(const char *str); 50 51 unsigned char ares__tolower(unsigned char c); 52 ares_bool_t ares__memeq_ci(const unsigned char *ptr, const unsigned char *val, 53 size_t len); 54 55 #endif /* HEADER_CARES_STRDUP_H */ 56