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 <stdlib.h>
15 #include <stdarg.h>
16 #include "fmt.h"
17 #include "fmtdef.h"
18
19 /*
20 * print into an allocated string buffer
21 */
22 char*
vsmprint(char * fmt,va_list args)23 vsmprint(char *fmt, va_list args)
24 {
25 Fmt f;
26 int n;
27
28 if(fmtstrinit(&f) < 0)
29 return nil;
30 f.args = args;
31 n = dofmt(&f, fmt);
32 if(n < 0)
33 return nil;
34 *(char*)f.to = '\0';
35 return (char*)f.start;
36 }
37