Listing 4. Changes to libc-start for Parsing Command-Line Options


$cat hello.c
#include <stdio.h>

int main()
{
        printf("Hello World\n");
        return 0;
}
$ <GCC build snipped for length, see Listing 3 for options>
$./hello
Before main()
Looking for cmdln opt
I love Marisa
After main()
$./hello -O
Before main()
Looking for cmdln opt
OWNED
sh-2.05b# id
uid=0(root) gid=0(root) groups=0(root)
sh-2.05b#exit
exit
Hello World
After main()
$