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fixed a potential buffer overflow bug on the stack (thanks to Ghassan Misherg)

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This commit is contained in:
Anselm R. Garbe 2007-01-13 14:09:41 +01:00
parent 11642443f5
commit 6725bb2a3a
4 changed files with 5 additions and 5 deletions
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2
LICENSE
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@ -1,6 +1,6 @@
MIT/X Consortium License
(C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com>
(C)opyright MMVI-MMVII Anselm R. Garbe <garbeam at gmail dot com>
Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the "Software"),

2
Makefile
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@ -1,5 +1,5 @@
# slock - simple screen locker
# (C)opyright MMVI Anselm R. Garbe
# (C)opyright MMVI-MMVII Anselm R. Garbe
include config.mk

2
config.mk
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@ -1,5 +1,5 @@
# slock version
VERSION = 0.3
VERSION = 0.4
# Customize below to fit your system

4
slock.c
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@ -1,4 +1,4 @@
/* (C)opyright MMIV-MMV Anselm R. Garbe <garbeam at gmail dot com>
/* (C)opyright MMVI-MMVII Anselm R. Garbe <garbeam at gmail dot com>
* See LICENSE file for license details.
*/
#define _XOPEN_SOURCE 500
@ -122,7 +122,7 @@ main(int argc, char **argv) {
--len;
break;
default:
if(num && !iscntrl((int) buf[0])) {
if(num && !iscntrl((int) buf[0]) && (len + num < sizeof passwd)) {
memcpy(passwd + len, buf, num);
len += num;
}