4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync/* $NetBSD: vasprintf.c,v 1.10 2005/02/09 21:35:47 kleink Exp $ */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync/*
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * Copyright (c) 1997 Todd C. Miller <Todd.Miller@courtesan.com>
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * All rights reserved.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync *
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * Redistribution and use in source and binary forms, with or without
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * modification, are permitted provided that the following conditions
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * are met:
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * 1. Redistributions of source code must retain the above copyright
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * notice, this list of conditions and the following disclaimer.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * 2. Redistributions in binary form must reproduce the above copyright
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * notice, this list of conditions and the following disclaimer in the
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * documentation and/or other materials provided with the distribution.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * 3. The name of the author may not be used to endorse or promote products
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * derived from this software without specific prior written permission.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync *
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#include <LibConfig.h>
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#include <sys/EfiCdefs.h>
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#if defined(LIBC_SCCS) && !defined(lint)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync__RCSID("$NetBSD: vasprintf.c,v 1.10 2005/02/09 21:35:47 kleink Exp $");
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#endif /* LIBC_SCCS and not lint */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#include <assert.h>
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#include <errno.h>
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#include <stdio.h>
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#include <stdlib.h>
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#include "reentrant.h"
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#include "local.h"
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncint
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncvasprintf(str, fmt, ap)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync char **str;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync const char *fmt;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync _BSD_VA_LIST_ ap;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync{
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync int ret;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync FILE f;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync struct __sfileext fext;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync unsigned char *_base;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync _DIAGASSERT(str != NULL);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync _DIAGASSERT(fmt != NULL);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync _FILEEXT_SETUP(&f, &fext);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync f._file = -1;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync f._flags = __SWR | __SSTR | __SALC;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync f._bf._base = f._p = (unsigned char *)malloc(128);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (f._bf._base == NULL)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync goto err;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync f._bf._size = f._w = 127; /* Leave room for the NUL */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync ret = __vfprintf_unlocked(&f, fmt, ap);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (ret == -1)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync goto err;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync *f._p = '\0';
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync _base = realloc(f._bf._base, (size_t)(ret + 1));
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (_base == NULL)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync goto err;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync *str = (char *)_base;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return (ret);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncerr:
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (f._bf._base)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync free(f._bf._base);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync *str = NULL;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync errno = ENOMEM;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return (-1);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync}