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66 lines
1.4 KiB
C
66 lines
1.4 KiB
C
/* $Id$ */
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/*
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* Copyright (c) 2006 Nicholas Marriott <nicm@users.sourceforge.net>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
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* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
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* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include <stdarg.h>
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#include <stdio.h>
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#ifdef HAVE_STDINT_H
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#include <stdint.h>
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#else
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#include <inttypes.h>
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#endif
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#include <string.h>
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#include "tmux.h"
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int
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asprintf(char **ret, const char *fmt, ...)
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{
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va_list ap;
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int n;
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va_start(ap, fmt);
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n = vasprintf(ret, fmt, ap);
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va_end(ap);
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return (n);
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}
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int
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vasprintf(char **ret, const char *fmt, va_list ap)
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{
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int n;
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va_list ap2;
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va_copy(ap2, ap);
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if ((n = vsnprintf(NULL, 0, fmt, ap)) < 0)
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goto error;
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*ret = xmalloc(n + 1);
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if ((n = vsnprintf(*ret, n + 1, fmt, ap2)) < 0) {
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free(*ret);
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goto error;
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}
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return (n);
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error:
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*ret = NULL;
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return (-1);
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}
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