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60 lines
1.7 KiB
C
60 lines
1.7 KiB
C
/*****************************************************************************
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* vasprintf.c: GNU vasprintf() replacement
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*****************************************************************************
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* Copyright © 1998-2009 VLC authors and VideoLAN
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation; either version 2.1 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
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*****************************************************************************/
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdint.h>
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#include <stdarg.h>
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#include <assert.h>
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int vasprintf (char **strp, const char *fmt, va_list ap)
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{
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va_list args;
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int len;
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va_copy (args, ap);
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len = vsnprintf (NULL, 0, fmt, args);
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va_end (args);
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char *str = malloc (len + 1);
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if (str != NULL)
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{
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int len2;
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va_copy (args, ap);
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len2 = vsprintf (str, fmt, args);
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assert (len2 == len);
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va_end (args);
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}
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else
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{
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len = -1;
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#ifndef NDEBUG
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str = (void *)(intptr_t)0x41414141; /* poison */
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#endif
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}
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*strp = str;
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return len;
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}
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