LCOV - GNU Libidn - lib/version.c

 Line data Source code

 1  : /* version.c --- Version handling.
 2  : Copyright (C) 2002-2020 Simon Josefsson
 3  : 
 4  : This file is part of GNU Libidn.
 5  : 
 6  : GNU Libidn is free software: you can redistribute it and/or
 7  : modify it under the terms of either:
 8  : 
 9  : * the GNU Lesser General Public License as published by the Free
 10  : Software Foundation; either version 3 of the License, or (at
 11  : your option) any later version.
 12  : 
 13  : or
 14  : 
 15  : * the GNU General Public License as published by the Free
 16  : Software Foundation; either version 2 of the License, or (at
 17  : your option) any later version.
 18  : 
 19  : or both in parallel, as here.
 20  : 
 21  : GNU Libidn is distributed in the hope that it will be useful,
 22  : but WITHOUT ANY WARRANTY; without even the implied warranty of
 23  : MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 24  : General Public License for more details.
 25  : 
 26  : You should have received copies of the GNU General Public License and
 27  : the GNU Lesser General Public License along with this program. If
 28  : not, see <http://www.gnu.org/licenses/>. */
 29  : 
 30  : #ifdef HAVE_CONFIG_H
 31  : # include "config.h"
 32  : #endif
 33  : 
 34  : #include "stringprep.h"
 35  : 
 36  : #include <string.h> /* for strverscmp */
 37  : 
 38  : /**
 39  : * stringprep_check_version:
 40  : * @req_version: Required version number, or NULL.
 41  : *
 42  : * Check that the version of the library is at minimum the requested one
 43  : * and return the version string; return NULL if the condition is not
 44  : * satisfied. If a NULL is passed to this function, no check is done,
 45  : * but the version string is simply returned.
 46  : *
 47  : * See %STRINGPREP_VERSION for a suitable @req_version string.
 48  : *
 49  : * Return value: Version string of run-time library, or NULL if the
 50  : * run-time library does not meet the required version number.
 51  : */
 52  : const char *
 53  368 : stringprep_check_version (const char *req_version)
 54  : {
 55  368 : if (!req_version || strverscmp (req_version, STRINGPREP_VERSION) <= 0)
 56  174 : return STRINGPREP_VERSION;
 57  : 
 58  194 : return NULL;
 59  : }