1#ifndef _STDIO_H
2#define _STDIO_H
3
4FILE_LICENCE ( GPL2_OR_LATER );
5
6#include <stdint.h>
7#include <stdarg.h>
8
9extern int __attribute__ (( format ( printf, 1, 2 ) ))
10printf ( const char *fmt, ... );
11
12extern int __attribute__ (( format ( printf, 3, 4 ) ))
13snprintf ( char *buf, size_t size, const char *fmt, ... );
14
15extern int __attribute__ (( format ( printf, 2, 3 ) ))
16asprintf ( char **strp, const char *fmt, ... );
17
18extern int vprintf ( const char *fmt, va_list args );
19
20extern int vsnprintf ( char *buf, size_t size, const char *fmt, va_list args );
21
22extern int vasprintf ( char **strp, const char *fmt, va_list args );
23
24/**
25 * Write a formatted string to a buffer
26 *
27 * @v buf		Buffer into which to write the string
28 * @v fmt		Format string
29 * @v ...		Arguments corresponding to the format string
30 * @ret len		Length of formatted string
31 */
32#define sprintf( buf, fmt, ... ) \
33	snprintf ( (buf), ~( ( size_t ) 0 ), (fmt), ## __VA_ARGS__ )
34
35/**
36 * Write a formatted string to a buffer
37 *
38 * @v buf		Buffer into which to write the string
39 * @v fmt		Format string
40 * @v args		Arguments corresponding to the format string
41 * @ret len		Length of formatted string
42 */
43static inline int vsprintf ( char *buf, const char *fmt, va_list args ) {
44	return vsnprintf ( buf, ~( ( size_t ) 0 ), fmt, args );
45}
46
47#endif /* _STDIO_H */
48