vasprintf.c revision 302408
1145132Sanholt/* $OpenBSD: vasprintf.c,v 1.4 1998/06/21 22:13:47 millert Exp $ */ 2145132Sanholt 3145132Sanholt/* 4145132Sanholt * Copyright (c) 1997 Todd C. Miller <Todd.Miller@courtesan.com> 5145132Sanholt * All rights reserved. 6145132Sanholt * 7145132Sanholt * Copyright (c) 2011 The FreeBSD Foundation 8145132Sanholt * All rights reserved. 9145132Sanholt * Portions of this software were developed by David Chisnall 10145132Sanholt * under sponsorship from the FreeBSD Foundation. 11145132Sanholt * 12145132Sanholt * Redistribution and use in source and binary forms, with or without 13145132Sanholt * modification, are permitted provided that the following conditions 14145132Sanholt * are met: 15145132Sanholt * 1. Redistributions of source code must retain the above copyright 16145132Sanholt * notice, this list of conditions and the following disclaimer. 17145132Sanholt * 2. Redistributions in binary form must reproduce the above copyright 18145132Sanholt * notice, this list of conditions and the following disclaimer in the 19145132Sanholt * documentation and/or other materials provided with the distribution. 20145132Sanholt * 3. The name of the author may not be used to endorse or promote products 21145132Sanholt * derived from this software without specific prior written permission. 22145132Sanholt * 23145132Sanholt * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, 24145132Sanholt * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY 25145132Sanholt * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL 26145132Sanholt * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 27145132Sanholt * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 28145132Sanholt * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 29145132Sanholt * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 30145132Sanholt * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 31145132Sanholt * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 32152909Sanholt * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 33152909Sanholt */ 34152909Sanholt 35145132Sanholt#include <sys/cdefs.h> 36145132Sanholt__FBSDID("$FreeBSD: stable/11/lib/libc/stdio/vasprintf.c 227753 2011-11-20 14:45:42Z theraven $"); 37145132Sanholt 38145132Sanholt#include <stdio.h> 39145132Sanholt#include <stdlib.h> 40145132Sanholt#include <errno.h> 41145132Sanholt#include "xlocale_private.h" 42145132Sanholt#include "local.h" 43145132Sanholt 44145132Sanholtint 45145132Sanholtvasprintf_l(char **str, locale_t locale, const char *fmt, __va_list ap) 46145132Sanholt{ 47145132Sanholt FILE f = FAKE_FILE; 48145132Sanholt int ret; 49145132Sanholt FIX_LOCALE(locale); 50145132Sanholt 51145132Sanholt f._flags = __SWR | __SSTR | __SALC; 52145132Sanholt f._bf._base = f._p = malloc(128); 53145132Sanholt if (f._bf._base == NULL) { 54145132Sanholt *str = NULL; 55145132Sanholt errno = ENOMEM; 56145132Sanholt return (-1); 57145132Sanholt } 58145132Sanholt f._bf._size = f._w = 127; /* Leave room for the NUL */ 59145132Sanholt ret = __vfprintf(&f, locale, fmt, ap); 60145132Sanholt if (ret < 0) { 61145132Sanholt free(f._bf._base); 62145132Sanholt *str = NULL; 63145132Sanholt errno = ENOMEM; 64145132Sanholt return (-1); 65145132Sanholt } 66145132Sanholt *f._p = '\0'; 67145132Sanholt *str = (char *)f._bf._base; 68145132Sanholt return (ret); 69145132Sanholt} 70145132Sanholtint 71145132Sanholtvasprintf(char **str, const char *fmt, __va_list ap) 72145132Sanholt{ 73145132Sanholt return vasprintf_l(str, __get_locale(), fmt, ap); 74145132Sanholt} 75145132Sanholt