/* How well do you know your format specified buffer building friend?
 * Tested on RHEL 4 with gcc 3.4.3, glibc 2.3.4,  2.6.9-5.EL kernel
 * Thanks to Andrew Ryder for catching my typo in an earlier version of this code
 * satebackire
 */
#include <stdio.h>
#include <string.h>

int main(int argc, char **argv){
        char a[32];

        /* Uncomment each sprintf line and test it out */
        //sprintf(a, "%20.10s", argv[1]);             //Prints 20 bytes every time, NO overflow
        //sprintf(a, "%.20s", argv[1]);               //Prints up to 20 bytes, NO overflow
        //sprintf(a, "%.30s %.30s", argv[1], argv[1]);//Prints up to 61 bytes, CAN overflow buffer 'a'
        //sprintf(a, "%10.60s", argv[1]);             //Prints up to 60 bytes, CAN overflow buffer 'a'
        //sprintf(a, "%.*s", strlen(argv[1]), argv[1]); //Prints user specified number of bytes, CAN overflow buffer 'a'
        //sprintf(a, "%20s", argv[1]);                //Prints at least 20 bytes, CAN overflow buffer 'a'
        //sprintf(a, "%120.10s", argv[1]);            //Prints 120 bytes every time, WILL overflow buffer 'a'

        printf( "a=[%s][%d]\n", a, strlen(a));
        return 0;
}