1 /* @(#)getcom.c 8.1 (Berkeley) 5/31/93 */
2 /* $NetBSD: getcom.c,v 1.14 2012/01/16 17:38:16 christos 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. Neither the name of the University nor the names of its contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 */
32
33 #include "extern.h"
34
35 char *
getcom(char * buf,int size,const char * prompt,const char * error)36 getcom(char *buf, int size, const char *prompt, const char *error)
37 {
38 for (;;) {
39 fputs(prompt, stdout);
40 if (fgets(buf, size, stdin) == NULL) {
41 if (feof(stdin))
42 die();
43 clearerr(stdin);
44 continue;
45 }
46 while (isspace((unsigned char)*buf))
47 buf++;
48 if (*buf)
49 break;
50 if (error)
51 puts(error);
52 }
53 /* If we didn't get to the end of line, don't read it in next time. */
54 if (buf[strlen(buf) - 1] != '\n') {
55 int i;
56 while ((i = getchar()) != '\n' && i != EOF)
57 continue;
58 }
59 return (buf);
60 }
61
62
63 /*
64 * shifts to UPPERCASE if flag > 0, lowercase if flag < 0,
65 * and leaves it unchanged if flag = 0
66 */
67 char *
getword(char * buf1,char * buf2,int flag)68 getword(char *buf1, char *buf2, int flag)
69 {
70 int cnt;
71
72 cnt = 1;
73 while (isspace((unsigned char)*buf1))
74 buf1++;
75 if (*buf1 != ',') {
76 if (!*buf1) {
77 *buf2 = 0;
78 return (0);
79 }
80 while (cnt < WORDLEN && *buf1 &&
81 !isspace((unsigned char)*buf1) && *buf1 != ',')
82 if (flag < 0) {
83 if (isupper((unsigned char)*buf1)) {
84 *buf2++ =
85 tolower((unsigned char)*buf1++);
86 cnt++;
87 } else {
88 *buf2++ = *buf1++;
89 cnt++;
90 }
91 } else if (flag > 0) {
92 if (islower((unsigned char)*buf1)) {
93 *buf2++ =
94 toupper((unsigned char)*buf1++);
95 cnt++;
96 } else {
97 *buf2++ = *buf1++;
98 cnt++;
99 }
100 } else {
101 *buf2++ = *buf1++;
102 cnt++;
103 }
104 if (cnt == WORDLEN)
105 while (*buf1 && !isspace((unsigned char)*buf1))
106 buf1++;
107 } else
108 *buf2++ = *buf1++;
109 *buf2 = '\0';
110 while (isspace((unsigned char)*buf1))
111 buf1++;
112 return (*buf1 ? buf1 : NULL);
113 }
114