warden/early-roguelike
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

UltraRogue: prevent bad array accesses in call().

Browse source 
Marking non-magic items caused segfaults because item_color was set to
NULL.  item_type could also be used as an out-of-bounds index.  These
problems have been fixed by only using these variables when the mark
argument is false, in which case they are properly initialized.

A fall-through case statement was also fixed.
This commit is contained in:
John "Elwin" Edwards 2017-09-10 21:04:22 -04:00
parent b521be16e8
commit 6164897cfc
1 changed files with 5 additions and 4 deletions
Download patch file Download diff file Expand all files Collapse all files

9
urogue/command.c
View file

@ -1303,6 +1303,7 @@ call(int mark)
case STICK:
item_type = TYP_STICK;
item_color = ws_made;
break;
default:
if (!mark)
{
@ -1312,10 +1313,7 @@ call(int mark)
break;
}
elsewise = (guess_items[item_type][obj->o_which] != NULL ?
guess_items[item_type][obj->o_which] : item_color[obj->o_which]);
if (know_items[item_type][obj->o_which] && !mark)
if (!mark && know_items[item_type][obj->o_which])
{
msg("That has already been identified.");
return;
@ -1331,6 +1329,9 @@ call(int mark)
}
else
{
elsewise = (guess_items[item_type][obj->o_which] != NULL ?
guess_items[item_type][obj->o_which] : item_color[obj->o_which]);
msg("Was called \"%s\".", elsewise);
msg("What do you want to call it? ");