Contiki-NG
strformat.h
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 #ifndef STRFORMAT_H_
33 #define STRFORMAT_H_
34 /*---------------------------------------------------------------------------*/
35 #include "contiki.h"
36 
37 #include <stdarg.h>
38 /*---------------------------------------------------------------------------*/
39 #define STRFORMAT_OK 0
40 #define STRFORMAT_FAILED 1
41 /*---------------------------------------------------------------------------*/
42 typedef unsigned int strformat_result;
43 /*---------------------------------------------------------------------------*/
44 /* The data argument may only be considered valid during the function call */
45 typedef strformat_result (*strformat_write)(void *user_data,
46  const char *data,
47  unsigned int len);
48 
49 typedef struct strformat_context_s {
50  strformat_write write_str;
51  void *user_data;
52 } strformat_context_t;
53 /*---------------------------------------------------------------------------*/
54 int format_str(const strformat_context_t *ctxt, const char *format, ...)
55  __attribute__ ((__format__ (__printf__, 2,3)));
56 
57 int
58 format_str_v(const strformat_context_t *ctxt, const char *format, va_list ap);
59 /*---------------------------------------------------------------------------*/
60 #endif /* STRFORMAT_H_ */
61 /*---------------------------------------------------------------------------*/