Contiki-NG
sprintf.c
1/*
2 * Copyright (c) 2009, Simon Berg
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. Neither the name of the copyright holder nor the names of its
15 * contributors may be used to endorse or promote products derived
16 * from this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
21 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
22 * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
24 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
25 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
27 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
29 * OF THE POSSIBILITY OF SUCH DAMAGE.
30 */
31/*---------------------------------------------------------------------------*/
32#include "contiki.h"
33
34#include <stdio.h>
35#include <strformat.h>
36#include <string.h>
37#undef sprintf
38/*---------------------------------------------------------------------------*/
39static strformat_result
40buffer_str(void *user_data, const char *data, unsigned int len)
41{
42 memcpy(*(char **)user_data, data, len);
43 (*(char **)user_data) += len;
44 return STRFORMAT_OK;
45}
46/*---------------------------------------------------------------------------*/
47int
48sprintf(char *str, const char *format, ...)
49{
50 strformat_context_t ctxt;
51 int res;
52 va_list ap;
53 va_start(ap, format);
54 ctxt.write_str = buffer_str;
55 ctxt.user_data = &str;
56 res = format_str_v(&ctxt, format, ap);
57 *str = '\0';
58 va_end(ap);
59 return res;
60}
61
62#if defined(CONTIKI_TARGET_COOJA) && !defined(__APPLE__)
63extern int __wrap_sprintf(char *str, const char *format, ...) __attribute__((nonnull, nothrow, alias("sprintf")));
64#endif
65/*---------------------------------------------------------------------------*/