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 /*---------------------------------------------------------------------------*/
38 static strformat_result
39 buffer_str(void *user_data, const char *data, unsigned int len)
40 {
41  memcpy(*(char **)user_data, data, len);
42  (*(char **)user_data) += len;
43  return STRFORMAT_OK;
44 }
45 /*---------------------------------------------------------------------------*/
46 int
47 sprintf(char *str, const char *format, ...)
48 {
49  strformat_context_t ctxt;
50  int res;
51  va_list ap;
52  va_start(ap, format);
53  ctxt.write_str = buffer_str;
54  ctxt.user_data = &str;
55  res = format_str_v(&ctxt, format, ap);
56  *str = '\0';
57  va_end(ap);
58  return res;
59 }
60 /*---------------------------------------------------------------------------*/