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root/i-scream/projects/libukcprog/src/strnf.c
Revision: 1.1
Committed: Sat Mar 29 16:30:33 2003 UTC (21 years, 8 months ago) by tdb
Content type: text/plain
Branch: MAIN
CVS Tags: LIBUKCPROG_1_0_2, LIBUKCPROG_1_0_1, LIBUKCPROG_1_0, HEAD
Error occurred while calculating annotation data.
Log Message:
libukcprog is now a seperate package. I doubt this will be much use to
anyone other than us, but I see no reason why we can't package it up
and distribute it. Obviously we can't attach the GPL to this, as we
don't own it.

File Contents

# Content
1 /* strnf.c -- like sprintf, but with a buffer size argument */
2
3 /* Copyright 1992 Mark Russell, University of Kent at Canterbury.
4 *
5 * You can do what you like with this source code as long as
6 * you don't try to make money out of it and you include an
7 * unaltered copy of this message (including the copyright).
8 */
9
10 char ukcprog_strnf_sccsid[] = "$Id: strnf.c,v 1.7 1993/10/25 11:40:55 mtr Exp $ UKC";
11
12 #ifdef __STDC__
13 #include <stdarg.h>
14 #else
15 #include <varargs.h>
16 #endif
17
18 #include <stdio.h>
19 #include <stdlib.h>
20 #include <string.h>
21 #ifndef __STDC__
22 #include <memory.h>
23 #endif
24
25 #include "ukcprog.h"
26
27
28 #ifdef __STDC__
29 void
30 strnf(char *buf, size_t bufsize, const char *fmt, ...)
31 {
32
33 #else /* !__STDC__ */
34 void
35 strnf(va_alist)
36 va_dcl
37 {
38 char *buf;
39 int bufsize;
40 char *fmt;
41 #endif /* !__STDC__ */
42 va_list args;
43 char *s;
44
45 #ifdef __STDC__
46 va_start(args, fmt);
47 #else
48 va_start(args);
49 buf = va_arg(args, char *);
50 bufsize = va_arg(args, size_t);
51 fmt = va_arg(args, char *);
52 #endif
53
54 s = formf(buf, (int)bufsize, fmt, args);
55
56 va_end(args);
57
58 /* If formf had to allocate a buffer then the supplied buf
59 * was too small. Copy what will fit and free the formf buffer.
60 */
61 if (s != buf) {
62 memcpy(buf, s, (size_t)(bufsize - 1));
63 buf[bufsize - 1] = '\0';
64 free(s);
65 }
66 }