getcom.c revision 1.3 
1/*	$OpenBSD: getcom.c,v 1.3 1997/08/24 21:55:08 deraadt Exp $	*/
2/*	$NetBSD: getcom.c,v 1.3 1995/03/21 15:07:30 cgd Exp $	*/
3
4/*
5 * Copyright (c) 1983, 1993
6 *	The Regents of the University of California.  All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in the
15 *    documentation and/or other materials provided with the distribution.
16 * 3. All advertising materials mentioning features or use of this software
17 *    must display the following acknowledgement:
18 *	This product includes software developed by the University of
19 *	California, Berkeley and its contributors.
20 * 4. Neither the name of the University nor the names of its contributors
21 *    may be used to endorse or promote products derived from this software
22 *    without specific prior written permission.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * SUCH DAMAGE.
35 */
36
37#ifndef lint
38#if 0
39static char sccsid[] = "@(#)getcom.c	8.1 (Berkeley) 5/31/93";
40#else
41static char rcsid[] = "$NetBSD: getcom.c,v 1.3 1995/03/21 15:07:30 cgd Exp $";
42#endif
43#endif /* not lint */
44
45#include <stdio.h>
46#include <ctype.h>
47#include "extern.h"
48
49char *
50getcom(buf, size, prompt, error)
51	char *buf;
52	int size;
53	char *prompt, *error;
54{
55	for (;;) {
56		fputs(prompt, stdout);
57		if (fgets(buf, size, stdin) == 0) {
58			clearerr(stdin);
59			continue;
60		}
61		while (isspace(*buf))
62			buf++;
63		if (*buf)
64			break;
65		if (error)
66			puts(error);
67	}
68	return (buf);
69}
70
71
72/*
73 * shifts to UPPERCASE if flag > 0, lowercase if flag < 0,
74 * and leaves it unchanged if flag = 0
75 */
76char *
77getword(buf1, buf2, flag)
78	register char *buf1, *buf2;
79	register int flag;
80{
81	while (isspace(*buf1))
82		buf1++;
83	if (*buf1 != ',') {
84		if (!*buf1) {
85			*buf2 = 0;
86			return (0);
87		}
88		while (*buf1 && !isspace(*buf1) && *buf1 != ',')
89			if (flag < 0)
90				if (isupper(*buf1))
91					*buf2++ = tolower(*buf1++);
92				else
93					*buf2++ = *buf1++;
94			else if (flag > 0)
95				if (islower(*buf1))
96					*buf2++ = toupper(*buf1++);
97				else
98					*buf2++ = *buf1++;
99			else
100				*buf2++ = *buf1++;
101	} else
102		*buf2++ = *buf1++;
103	*buf2 = 0;
104	while (isspace(*buf1))
105		buf1++;
106	return (*buf1 ? buf1 : 0);
107}
108