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Detect infinite alias self-recursion mixed with other commands, such as in the case of alias a "echo test; a"; a.

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(Unfortunately, this does not work if "wait" is used instead of "echo", but oh well)
This commit is contained in:
Monster Iestyn 2019-04-14 16:39:14 +01:00
parent 6d95f3ceb2
commit 797ca99f42
1 changed files with 5 additions and 8 deletions
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13
src/command.c
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@ -514,7 +514,6 @@ static void COM_ExecuteString(char *ptext)
{ {
if (!stricmp(com_argv[0], cmd->name)) //case insensitive now that we have lower and uppercase! if (!stricmp(com_argv[0], cmd->name)) //case insensitive now that we have lower and uppercase!
{ {
recursion = 0;
cmd->function(); cmd->function();
return; return;
} }
@ -526,19 +525,17 @@ static void COM_ExecuteString(char *ptext)
if (!stricmp(com_argv[0], a->name)) if (!stricmp(com_argv[0], a->name))
{ {
if (recursion > MAX_ALIAS_RECURSION) if (recursion > MAX_ALIAS_RECURSION)
{
CONS_Alert(CONS_WARNING, M_GetText("Alias recursion cycle detected!\n")); CONS_Alert(CONS_WARNING, M_GetText("Alias recursion cycle detected!\n"));
recursion = 0; else
return; { // Monster Iestyn: keep track of how many levels of recursion we're in
recursion++;
COM_BufInsertText(a->value);
recursion--;
} }
recursion++;
COM_BufInsertText(a->value);
return; return;
} }
} }
recursion = 0;
// check cvars // check cvars
// Hurdler: added at Ebola's request ;) // Hurdler: added at Ebola's request ;)
// (don't flood the console in software mode with bad gr_xxx command) // (don't flood the console in software mode with bad gr_xxx command)