mhdt_has_param.h (2821B)
1 /* SPDX-License-Identifier: LGPL-2.1-or-later OR (GPL-2.0-or-later WITH eCos-exception-2.0) */ 2 /* 3 This file is part of GNU libmicrohttpd. 4 Copyright (C) 2016-2025 Karlson2k (Evgeny Grin) 5 6 GNU libmicrohttpd is free software; you can redistribute it and/or 7 modify it under the terms of the GNU Lesser General Public 8 License as published by the Free Software Foundation; either 9 version 2.1 of the License, or (at your option) any later version. 10 11 GNU libmicrohttpd is distributed in the hope that it will be useful, 12 but WITHOUT ANY WARRANTY; without even the implied warranty of 13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 Lesser General Public License for more details. 15 16 Alternatively, you can redistribute GNU libmicrohttpd and/or 17 modify it under the terms of the GNU General Public License as 18 published by the Free Software Foundation; either version 2 of 19 the License, or (at your option) any later version, together 20 with the eCos exception, as follows: 21 22 As a special exception, if other files instantiate templates or 23 use macros or inline functions from this file, or you compile this 24 file and link it with other works to produce a work based on this 25 file, this file does not by itself cause the resulting work to be 26 covered by the GNU General Public License. However the source code 27 for this file must still be made available in accordance with 28 section (3) of the GNU General Public License v2. 29 30 This exception does not invalidate any other reasons why a work 31 based on this file might be covered by the GNU General Public 32 License. 33 34 You should have received copies of the GNU Lesser General Public 35 License and the GNU General Public License along with this library; 36 if not, see <https://www.gnu.org/licenses/>. 37 */ 38 39 /** 40 * @file src/tests/mhdt_has_param.h 41 * @brief A simple helper function to detect parameter presence 42 * @author Karlson2k (Evgeny Grin) 43 */ 44 #ifndef MHDT_HAS_PARAM_H 45 #define MHDT_HAS_PARAM_H 1 46 47 #include <string.h> 48 49 /** 50 * Check whether one of strings in array is equal to @a param. 51 * String @a argv[0] is ignored. 52 * @param argc number of strings in @a argv, as passed to main function 53 * @param argv array of strings, as passed to main function 54 * @param param parameter to look for. 55 * @return zero if @a argv is NULL, @a param is NULL or empty string, 56 * @a argc is less then 2 or @a param is not found in @a argv, 57 * non-zero if one of strings in @a argv is equal to @a param. 58 */ 59 static inline int 60 mhdt_has_param (int argc, char *const argv[], const char *param) 61 { 62 int i; 63 if (! argv || ! param || ! param[0]) 64 return 0; 65 66 for (i = 1; i < argc; i++) 67 { 68 if (argv[i] && (strcmp (argv[i], param) == 0) ) 69 return ! 0; 70 } 71 72 return 0; 73 } 74 75 76 #endif /* ! MHDT_HAS_PARAM_H */