1 /* $NetBSD: vasnprintf.h,v 1.1.1.1 2016/01/14 00:11:28 christos Exp $ */ 2 3 /* vsprintf with automatic memory allocation. 4 Copyright (C) 2002-2003 Free Software Foundation, Inc. 5 6 This program is free software; you can redistribute it and/or modify it 7 under the terms of the GNU Library General Public License as published 8 by the Free Software Foundation; either version 2, or (at your option) 9 any later version. 10 11 This program 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 Library General Public License for more details. 15 16 You should have received a copy of the GNU Library General Public 17 License along with this program; if not, write to the Free Software 18 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 19 USA. */ 20 21 #ifndef _VASNPRINTF_H 22 #define _VASNPRINTF_H 23 24 /* Get va_list. */ 25 #include <stdarg.h> 26 27 /* Get size_t. */ 28 #include <stddef.h> 29 30 #ifndef __attribute__ 31 /* This feature is available in gcc versions 2.5 and later. */ 32 # if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 5) || __STRICT_ANSI__ 33 # define __attribute__(Spec) /* empty */ 34 # endif 35 /* The __-protected variants of `format' and `printf' attributes 36 are accepted by gcc versions 2.6.4 (effectively 2.7) and later. */ 37 # if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7) 38 # define __format__ format 39 # define __printf__ printf 40 # endif 41 #endif 42 43 #ifdef __cplusplus 44 extern "C" { 45 #endif 46 47 /* Write formatted output to a string dynamically allocated with malloc(). 48 You can pass a preallocated buffer for the result in RESULTBUF and its 49 size in *LENGTHP; otherwise you pass RESULTBUF = NULL. 50 If successful, return the address of the string (this may be = RESULTBUF 51 if no dynamic memory allocation was necessary) and set *LENGTHP to the 52 number of resulting bytes, excluding the trailing NUL. Upon error, set 53 errno and return NULL. */ 54 extern char * asnprintf (char *resultbuf, size_t *lengthp, const char *format, ...) 55 __attribute__ ((__format__ (__printf__, 3, 4))); 56 extern char * vasnprintf (char *resultbuf, size_t *lengthp, const char *format, va_list args) 57 __attribute__ ((__format__ (__printf__, 3, 0))); 58 59 #ifdef __cplusplus 60 } 61 #endif 62 63 #endif /* _VASNPRINTF_H */ 64