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crash in bigsay (#20)

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* crash in bigsay
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joonicks 2018-03-22 16:43:20 +01:00 committed by GitHub
parent 7aba5eddf4
commit 67695c7ad9
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 15 additions and 10 deletions
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1
VERSIONS
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@ -1,5 +1,6 @@
3.0.99p4 -- WORK IN PROGRESS (~March, 2018)
* Fixed: Crash bug in BIGSAY
* Added: Signal handlers for SIGILL and SIGABRT ifdef DEBUG
* Added: New command: CRASH, for debugging/development...
* Changed: configure now defaults to optimizing for code size.

24
src/toybox.c
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@ -1,7 +1,7 @@
/*
EnergyMech, IRC bot software
Copyright (c) 2000-2004 proton
Copyright (c) 2000-2018 proton
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
@ -199,7 +199,7 @@ void do_bigsay(COMMAND_ARGS)
BigC *bigc;
Strp *sp;
char output[MSGLEN];
char *pt,*tail,*temp;
char *pt,*tail,*temp,*temp2;
int i,x,sz;
#ifdef DEBUG
@ -214,6 +214,7 @@ void do_bigsay(COMMAND_ARGS)
return;
}
#define OEND (output + MSGLEN - 1)
for(i=0;i<charheight;i++)
{
sz = 0;
@ -225,7 +226,7 @@ void do_bigsay(COMMAND_ARGS)
if (*pt == ' ')
{
x = spacewidth;
while(x--)
while(x-- && tail < OEND)
*(tail++) = ' ';
*tail = 0;
continue;
@ -237,17 +238,20 @@ void do_bigsay(COMMAND_ARGS)
sp = bigc->data;
for(x=0;x<i;x++)
if (sp) sp = sp->next;
temp = Strcat(tail,sp->p);
while(temp < (tail + bigc->width))
*(temp++) = ' ';
temp = sp->p;
temp2 = tail;
while(*temp && tail < OEND)
*(tail++) = *(temp++);
//temp = Strcat(tail,sp->p);
while(tail < (temp2 + bigc->width) && tail < OEND)
*(tail++) = ' ';
if (pt[1])
{
x = kerning;
while(x--)
*(temp++) = ' ';
while(x-- && tail < OEND)
*(tail++) = ' ';
}
*temp = 0;
tail = temp;
*tail = 0;
break;
}
}