1 /* $OpenBSD: vasprintf.c,v 1.4 1998/06/21 22:13:47 millert Exp $ */ 2 3 /*- 4 * SPDX-License-Identifier: BSD-3-Clause 5 * 6 * Copyright (c) 1997 Todd C. Miller <Todd.Miller@courtesan.com> 7 * All rights reserved. 8 * 9 * Copyright (c) 2011 The FreeBSD Foundation 10 * All rights reserved. 11 * Portions of this software were developed by David Chisnall 12 * under sponsorship from the FreeBSD Foundation. 13 * 14 * Redistribution and use in source and binary forms, with or without 15 * modification, are permitted provided that the following conditions 16 * are met: 17 * 1. Redistributions of source code must retain the above copyright 18 * notice, this list of conditions and the following disclaimer. 19 * 2. Redistributions in binary form must reproduce the above copyright 20 * notice, this list of conditions and the following disclaimer in the 21 * documentation and/or other materials provided with the distribution. 22 * 3. The name of the author may not be used to endorse or promote products 23 * derived from this software without specific prior written permission. 24 * 25 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, 26 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY 27 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL 28 * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 29 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 30 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 31 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 32 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 33 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 34 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 35 */ 36 37 #include <sys/cdefs.h> 38 __FBSDID("$FreeBSD$"); 39 40 #include <stdio.h> 41 #include <stdlib.h> 42 #include <errno.h> 43 #include "xlocale_private.h" 44 #include "local.h" 45 46 int 47 vasprintf_l(char **str, locale_t locale, const char *fmt, __va_list ap) 48 { 49 FILE f = FAKE_FILE; 50 int ret; 51 FIX_LOCALE(locale); 52 53 f._flags = __SWR | __SSTR | __SALC; 54 f._bf._base = f._p = malloc(128); 55 if (f._bf._base == NULL) { 56 *str = NULL; 57 errno = ENOMEM; 58 return (-1); 59 } 60 f._bf._size = f._w = 127; /* Leave room for the NUL */ 61 ret = __vfprintf(&f, locale, fmt, ap); 62 if (ret < 0) { 63 free(f._bf._base); 64 *str = NULL; 65 errno = ENOMEM; 66 return (-1); 67 } 68 *f._p = '\0'; 69 *str = (char *)f._bf._base; 70 return (ret); 71 } 72 int 73 vasprintf(char **str, const char *fmt, __va_list ap) 74 { 75 return vasprintf_l(str, __get_locale(), fmt, ap); 76 } 77