xref: /plan9/sys/src/ape/lib/ap/stdio/vsnprintf.c (revision ff8c3af2f44d95267f67219afa20ba82ff6cf7e4)
1 /*
2  * pANS stdio -- vsnprintf
3  */
4 #include "iolib.h"
5 int vsnprintf(char *buf, size_t nbuf, const char *fmt, va_list args){
6 	int n;
7 	char *v;
8 	FILE *f=_IO_sopenw();
9 	if(f==NULL)
10 		return 0;
11 	setvbuf(f, buf, _IOFBF, nbuf);
12 	n=vfprintf(f, fmt, args);
13 	_IO_sclose(f);
14 	return n;
15 }
16