1 /* $OpenBSD: snprintf.c,v 1.16 2009/10/22 01:23:16 guenther Exp $ */
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39 #include "ust_snprintf.h"
41 int ust_safe_vsnprintf(char *str
, size_t n
, const char *fmt
, va_list ap
)
46 struct __sfileext fext
;
48 /* While snprintf(3) specifies size_t stdio uses an int internally */
51 /* Stdio internals do not deal correctly with zero length buffer */
56 _FILEEXT_SETUP(&f
, &fext
);
58 f
._flags
= __SWR
| __SSTR
;
59 f
._bf
._base
= f
._p
= (unsigned char *)str
;
60 f
._bf
._size
= f
._w
= n
- 1;
61 ret
= ust_safe_vfprintf(&f
, fmt
, ap
);
66 int ust_safe_snprintf(char *str
, size_t n
, const char *fmt
, ...)
72 ret
= ust_safe_vsnprintf(str
, n
, fmt
, ap
);
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