1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
|
/* $OpenBSD: getcom.c,v 1.7 2000/09/17 21:28:33 pjanzen Exp $ */
/* $NetBSD: getcom.c,v 1.3 1995/03/21 15:07:30 cgd Exp $ */
/*
* Copyright (c) 1983, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef lint
#if 0
static char sccsid[] = "@(#)getcom.c 8.1 (Berkeley) 5/31/93";
#else
static char rcsid[] = "$OpenBSD: getcom.c,v 1.7 2000/09/17 21:28:33 pjanzen Exp $";
#endif
#endif /* not lint */
#include "extern.h"
char *
getcom(buf, size, prompt, error)
char *buf;
int size;
const char *prompt, *error;
{
for (;;) {
fputs(prompt, stdout);
if (fgets(buf, size, stdin) == 0) {
if (feof(stdin)) {
printf("user closed input stream, quitting...\n");
exit(0);
}
clearerr(stdin);
continue;
}
while (isspace(*buf))
buf++;
if (*buf)
break;
if (error)
puts(error);
}
return (buf);
}
/*
* shifts to UPPERCASE if flag > 0, lowercase if flag < 0,
* and leaves it unchanged if flag = 0
*/
char *
getword(buf1, buf2, flag)
char *buf1, *buf2;
int flag;
{
int cnt;
cnt = 1;
while (isspace(*buf1))
buf1++;
if (*buf1 != ',') {
if (!*buf1) {
*buf2 = 0;
return (0);
}
while (cnt < WORDLEN && *buf1 && !isspace(*buf1) && *buf1 != ',')
if (flag < 0) {
if (isupper(*buf1)) {
*buf2++ = tolower(*buf1++);
cnt++;
} else {
*buf2++ = *buf1++;
cnt++;
}
} else if (flag > 0) {
if (islower(*buf1)) {
*buf2++ = toupper(*buf1++);
cnt++;
} else {
*buf2++ = *buf1++;
cnt++;
}
} else {
*buf2++ = *buf1++;
cnt++;
}
if (cnt == WORDLEN)
while (*buf1 && !isspace(*buf1))
buf1++;
} else
*buf2++ = *buf1++;
*buf2 = '\0';
while (isspace(*buf1))
buf1++;
return (*buf1 ? buf1 : NULL);
}
|
