1 /* 2 3 Copyright (C) 2010 Alex Andreotti <alex.andreotti@gmail.com> 4 5 This file is part of chmc. 6 7 chmc is free software: you can redistribute it and/or modify 8 it under the terms of the GNU General Public License as published by 9 the Free Software Foundation, either version 3 of the License, or 10 (at your option) any later version. 11 12 chmc is distributed in the hope that it will be useful, 13 but WITHOUT ANY WARRANTY; without even the implied warranty of 14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 GNU General Public License for more details. 16 17 You should have received a copy of the GNU General Public License 18 along with chmc. If not, see <http://www.gnu.org/licenses/>. 19 20 */ 21 #include "err.h" 22 23 #include <stdarg.h> 24 #include <assert.h> 25 26 struct chmcErr 27 { 28 int code; 29 char msg[CHMC_ERRMAXLEN+1]; 30 }; 31 32 static struct chmcErr chmc_err = { 33 CHMC_NOERR, 34 '\0', 35 }; 36 37 void chmcerr_clean(void) { 38 chmc_err.code = CHMC_NOERR; 39 chmc_err.msg[0] = '\0'; 40 } 41 42 int chmcerr_code(void) { 43 return chmc_err.code; 44 } 45 46 const char *chmcerr_message( void ) { 47 return chmc_err.msg; 48 } 49 50 void chmcerr_set(int code, const char *fmt, ...) 51 { 52 int len; 53 va_list ap; 54 55 chmc_err.code = code; 56 57 va_start(ap, fmt); 58 59 len = vsnprintf(chmc_err.msg, CHMC_ERRMAXLEN, fmt, ap); 60 if (len == CHMC_ERRMAXLEN) 61 chmc_err.msg[CHMC_ERRMAXLEN] = '\0'; 62 63 assert(len <= CHMC_ERRMAXLEN); 64 65 va_end(ap); 66 } 67