1/* Like sprintf but provides a pointer to malloc'd storage, which must 2 be freed by the caller. 3 Copyright (C) 1997, 2003, 2013 Free Software Foundation, Inc. 4 Contributed by Cygnus Solutions. 5 6This file is part of the libiberty library. 7Libiberty is free software; you can redistribute it and/or 8modify it under the terms of the GNU Library General Public 9License as published by the Free Software Foundation; either 10version 2 of the License, or (at your option) any later version. 11 12Libiberty is distributed in the hope that it will be useful, 13but WITHOUT ANY WARRANTY; without even the implied warranty of 14MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 15Library General Public License for more details. 16 17You should have received a copy of the GNU Library General Public 18License along with libiberty; see the file COPYING.LIB. If 19not, write to the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor, 20Boston, MA 02110-1301, USA. */ 21 22#ifdef HAVE_CONFIG_H 23#include "config.h" 24#endif 25#include "ansidecl.h" 26#include "libiberty.h" 27 28#include <stdarg.h> 29 30/* 31 32@deftypefn Extension int asprintf (char **@var{resptr}, const char *@var{format}, ...) 33 34Like @code{sprintf}, but instead of passing a pointer to a buffer, you 35pass a pointer to a pointer. This function will compute the size of 36the buffer needed, allocate memory with @code{malloc}, and store a 37pointer to the allocated memory in @code{*@var{resptr}}. The value 38returned is the same as @code{sprintf} would return. If memory could 39not be allocated, minus one is returned and @code{NULL} is stored in 40@code{*@var{resptr}}. 41 42@end deftypefn 43 44*/ 45 46int 47asprintf (char **buf, const char *fmt, ...) 48{ 49 int status; 50 va_list ap; 51 va_start (ap, fmt); 52 status = vasprintf (buf, fmt, ap); 53 va_end (ap); 54 return status; 55} 56