1 /* Formatted output to strings. 2 Copyright (C) 1999, 2002 Free Software Foundation, Inc. 3 4 This program is free software; you can redistribute it and/or modify 5 it under the terms of the GNU General Public License as published by 6 the Free Software Foundation; either version 2, or (at your option) 7 any later version. 8 9 This program is distributed in the hope that it will be useful, 10 but WITHOUT ANY WARRANTY; without even the implied warranty of 11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 GNU General Public License for more details. 13 14 You should have received a copy of the GNU General Public License along 15 with this program; if not, write to the Free Software Foundation, 16 Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ 17 18 #ifdef HAVE_CONFIG_H 19 # include <config.h> 20 #endif 21 22 /* Specification. */ 23 #include "vasprintf.h" 24 25 #include <stdlib.h> 26 27 #include "vasnprintf.h" 28 29 int 30 vasprintf (char **resultp, const char *format, va_list args) 31 { 32 size_t length; 33 char *result = vasnprintf (NULL, &length, format, args); 34 if (result == NULL) 35 return -1; 36 37 *resultp = result; 38 /* Return the number of resulting bytes, excluding the trailing NUL. 39 If it wouldn't fit in an 'int', vasnprintf() would have returned NULL 40 and set errno to EOVERFLOW. */ 41 return length; 42 } 43