Grayshell

Some basic shell code, when I learn <Gray Hat Hacking>

#How to run

##Example1 : Buffer_overflow //notice we start out at user privileges "$"

gcc overflow.c -ggdb -mpreferred-stack-boundary=2 -fno-stack-protector -o overflow

$gdb -g overflow 
(gdb) run
(gdb) info req eip
(gdb) q

##Example2 : Meet.c //notice we start out at user privileges "$"

gcc meet.c -ggdb -mpreferred-stack-boundary=2 -fno-stack-protector -z execstack -o meet

$gdb -g overflow 
(gdb) run
(gdb) info req eip
(gdb) q