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 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 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 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