Sanity fixes for input buffer handling. From OpenBSD

This commit is contained in:
dholland 2008-02-23 20:12:15 +00:00
parent eb54cecf5a
commit ff1acb6483
1 changed files with 7 additions and 11 deletions

View File

@ -1,4 +1,4 @@
/* $NetBSD: getinp.c,v 1.16 2008/02/19 09:45:02 dholland Exp $ */
/* $NetBSD: getinp.c,v 1.17 2008/02/23 20:12:15 dholland Exp $ */
/*
* Copyright (c) 1980, 1993
@ -34,7 +34,7 @@
#if 0
static char sccsid[] = "@(#)getinp.c 8.1 (Berkeley) 5/31/93";
#else
__RCSID("$NetBSD: getinp.c,v 1.16 2008/02/19 09:45:02 dholland Exp $");
__RCSID("$NetBSD: getinp.c,v 1.17 2008/02/23 20:12:15 dholland Exp $");
#endif
#endif /* not lint */
@ -55,18 +55,13 @@ getinp(prompt, lst)
{
int i, n_match, match = 0;
char *sp;
int c;
for (;;) {
printf("%s", prompt);
for (sp = buf; (c = getchar()) != '\n'; ) {
if (c == -1)
return 0;
*sp = c;
if (sp != buf || *sp != ' ')
sp++;
fgets(buf, sizeof(buf), stdin);
if (feof(stdin)) {
return 0;
}
*sp = c;
if (buf[0] == '?' && buf[1] == '\n') {
printf("Valid inputs are: ");
for (i = 0, match = 18; lst[i]; i++) {
@ -88,7 +83,8 @@ getinp(prompt, lst)
}
continue;
}
*sp = '\0';
if ((sp = strchr(buf, '\n')) != NULL)
*sp = '\0';
for (sp = buf; *sp; sp++)
*sp = tolower((unsigned char)*sp);
for (i = n_match = 0; lst[i]; i++)