snprintf.c revision 82498 
1#include <config.h>
2
3#include <sys/types.h>
4
5#ifdef __STDC__
6#include <stdarg.h>
7#else
8#include <varargs.h>
9#endif
10#include <stdio.h>
11
12#ifdef __STDC__
13int snprintf(char *str, size_t n, const char *fmt, ...)
14#else
15int snprintf(str, n, fmt, va_alist)
16	char *str;
17	size_t n;
18	const char *fmt;
19	va_dcl
20#endif
21{
22	va_list ap;
23	int rval;
24#ifdef VSPRINTF_CHARSTAR
25	char *rp;
26#endif
27#ifdef __STDC__
28	va_start(ap, fmt);
29#else
30	va_start(ap);
31#endif
32#ifdef VSPRINTF_CHARSTAR
33	rp = vsprintf(str, fmt, ap);
34	va_end(ap);
35	return (strlen(rp));
36#else
37	rval = vsprintf(str, fmt, ap);
38	va_end(ap);
39	return (rval);
40#endif
41}
42
43int
44vsnprintf(str, n, fmt, ap)
45	char *str;
46	size_t n;
47	const char *fmt;
48	va_list ap;
49{
50#ifdef VSPRINTF_CHARSTAR
51	return (strlen(vsprintf(str, fmt, ap)));
52#else
53	return (vsprintf(str, fmt, ap));
54#endif
55}
56