1 /* $OpenBSD: misc.c,v 1.11 2021/11/20 03:13:37 jcs Exp $ */
2
3 /*
4 * Copyright (c) 1997 Tobias Weingartner
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27
28 #include <sys/types.h>
29
30 #include <ctype.h>
31 #include <err.h>
32 #include <stdio.h>
33 #include <stdlib.h>
34 #include <string.h>
35
36 #include "misc.h"
37
38 extern int verbose;
39
40 int
parse_cmd(cmd_t * cmd,char * lbuf)41 parse_cmd(cmd_t *cmd, char *lbuf)
42 {
43 char *cp, *buf;
44
45 lbuf[strcspn(lbuf, "\n")] = '\0';
46 if (verbose)
47 printf("%s\n", lbuf);
48
49 /* Parse input */
50 buf = lbuf;
51 buf = &buf[strspn(buf, " \t")];
52 cp = &buf[strcspn(buf, " \t")];
53 *cp++ = '\0';
54 strlcpy(cmd->cmd, buf, sizeof cmd->cmd);
55 buf = &cp[strspn(cp, " \t")];
56 strlcpy(cmd->args, buf, sizeof cmd->args);
57
58 return (0);
59 }
60
61 int
ask_cmd(cmd_t * cmd)62 ask_cmd(cmd_t *cmd)
63 {
64 char lbuf[100];
65 extern FILE *cmdfp;
66
67 /* Get input */
68 if (fgets(lbuf, sizeof lbuf, cmdfp ? cmdfp : stdin) == NULL) {
69 if (cmdfp) {
70 cmd->cmd[0] = '\0';
71 return -1;
72 }
73 errx(1, "eof");
74 }
75 if (cmdfp)
76 printf("%s", lbuf);
77 return parse_cmd(cmd, lbuf);
78 }
79
80 int
ask_yn(const char * str)81 ask_yn(const char *str)
82 {
83 extern FILE *cmdfp;
84 int ch, first;
85
86 printf("%s [n] ", str);
87 fflush(stdout);
88
89 first = ch = getc(cmdfp ? cmdfp : stdin);
90 if (verbose || (cmdfp && ch != EOF)) {
91 printf("%c", ch);
92 fflush(stdout);
93 }
94 while (ch != '\n' && ch != EOF) {
95 ch = getc(cmdfp ? cmdfp : stdin);
96 if (verbose) {
97 printf("%c\n", ch);
98 fflush(stdout);
99 } else if (cmdfp)
100 putchar('\n');
101 }
102 if (ch == EOF || first == EOF)
103 errx(1, "eof");
104
105 return (first == 'y' || first == 'Y');
106 }
107