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/* $NetBSD: getinp.c,v 1.4 1995/04/24 12:24:20 cgd Exp $ */
/*
* Copyright (c) 1980, 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[] = "@(#)getinp.c 8.1 (Berkeley) 5/31/93";
#else
static char rcsid[] = "$NetBSD: getinp.c,v 1.4 1995/04/24 12:24:20 cgd Exp $";
#endif
#endif /* not lint */
# include <stdio.h>
# include <string.h>
# include <ctype.h>
# define reg register
# define LINE 70
static char buf[257];
getinp(prompt, list)
char *prompt, *list[]; {
reg int i, n_match, match;
char *sp;
int c;
int plen;
static int comp();
for (;;) {
inter:
printf(prompt);
for (sp = buf; (c=getchar()) != '\n'; ) {
*sp = c;
if (c == -1) /* check for interupted system call */
goto inter;
else if (sp != buf || *sp != ' ')
sp++;
}
*sp = c;
if (buf[0] == '?' && buf[1] == '\n') {
printf("Valid inputs are: ");
for (i = 0, match = 18; list[i]; i++) {
if ((match+=(n_match=strlen(list[i]))) > LINE) {
printf("\n\t");
match = n_match + 8;
}
if (*list[i] == '\0') {
match += 8;
printf("<RETURN>");
}
else
printf(list[i]);
if (list[i+1])
printf(", ");
else
putchar('\n');
match += 2;
}
continue;
}
*sp = '\0';
for (sp = buf; *sp; sp++)
if (isupper(*sp))
*sp = tolower(*sp);
for (i = n_match = 0; list[i]; i++)
if (comp(list[i])) {
n_match++;
match = i;
}
if (n_match == 1)
return match;
else if (buf[0] != '\0')
printf("Illegal response: \"%s\". Use '?' to get list of valid answers\n", buf);
}
}
static
comp(s1)
char *s1; {
reg char *sp, *tsp, c;
if (buf[0] != '\0')
for (sp = buf, tsp = s1; *sp; ) {
c = isupper(*tsp) ? tolower(*tsp) : *tsp;
tsp++;
if (c != *sp++)
return 0;
}
else if (*s1 != '\0')
return 0;
return 1;
}
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