1 /*
2 * The authors of this software are Rob Pike and Ken Thompson.
3 * Copyright (c) 2002 by Lucent Technologies.
4 * Permission to use, copy, modify, and distribute this software for any
5 * purpose without fee is hereby granted, provided that this entire notice
6 * is included in all copies of any software which is or includes a copy
7 * or modification of this software and in all copies of the supporting
8 * documentation for such software.
9 * THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR IMPLIED
10 * WARRANTY. IN PARTICULAR, NEITHER THE AUTHORS NOR LUCENT TECHNOLOGIES MAKE ANY
11 * REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING THE MERCHANTABILITY
12 * OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR PURPOSE.
13 */
14 #include <stdarg.h>
15 #include <string.h>
16 #include "utf.h"
17 #include "fmt.h"
18 #include "fmtdef.h"
19
20 int
runevsnprint(Rune * buf,int len,char * fmt,va_list args)21 runevsnprint(Rune *buf, int len, char *fmt, va_list args)
22 {
23 Fmt f;
24
25 if(len <= 0)
26 return -1;
27 f.runes = 1;
28 f.start = buf;
29 f.to = buf;
30 f.stop = buf + len - 1;
31 f.flush = nil;
32 f.farg = nil;
33 f.nfmt = 0;
34 f.args = args;
35 dofmt(&f, fmt);
36 *(Rune*)f.to = '\0';
37 return (Rune*)f.to - buf;
38 }
39