Aren
/
NetBSD
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Input validation, from David A. Holland on #NetBSD-code

This commit is contained in:
elad 2006-10-07 18:29:02 +00:00
parent 7d7720ce94
commit 444bc3c8be
1 changed files with 18 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

24
games/atc/input.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: input.c,v 1.20 2006/06/07 09:24:26 jnemeth Exp $ */
/* $NetBSD: input.c,v 1.21 2006/10/07 18:29:02 elad Exp $ */
/*-
* Copyright (c) 1990, 1993
@ -46,7 +46,7 @@
#if 0
static char sccsid[] = "@(#)input.c 8.1 (Berkeley) 5/31/93";
#else
__RCSID("$NetBSD: input.c,v 1.20 2006/06/07 09:24:26 jnemeth Exp $");
__RCSID("$NetBSD: input.c,v 1.21 2006/10/07 18:29:02 elad Exp $");
#endif
#endif /* not lint */
@ -517,28 +517,40 @@ descend(int c __attribute__((__unused__)))
const char *
setalt(int c)
{
if ((p.altitude == c - '0') && (p.new_altitude == p.altitude))
int newalt = c - '0';
if ((p.altitude == newalt) && (p.new_altitude == p.altitude))
return ("Already at that altitude");
p.new_altitude = c - '0';
if (p.new_altitude == newalt) {
return ("Already going to that altitude");
}
p.new_altitude = newalt;
return (NULL);
}
const char *
setrelalt(int c)
{
int newalt;
if (c == 0)
return ("altitude not changed");
switch (dir) {
case D_UP:
p.new_altitude = p.altitude + c - '0';
newalt = p.altitude + c - '0';
break;
case D_DOWN:
p.new_altitude = p.altitude - (c - '0');
newalt = p.altitude - (c - '0');
break;
default:
return ("Unknown case in setrelalt! Get help!");
}
if (p.new_altitude == newalt)
return ("Already going to that altitude");
p.new_altitude = newalt;
if (p.new_altitude < 0)
return ("Altitude would be too low");
else if (p.new_altitude > 9)