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aweimeow/gist:03043db97276e0257487

Created October 31, 2014 06:29
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gistfile1.c
#include<stdio.h>
#include<string.h>
int main() {
int flag=0;
char buf[20];
char * point= (char *) &flag;
fprintf(stderr,"How can you write on flag?\n");
fgets(buf,20,stdin);
fprintf(stderr,"Your input is ");
fprintf(stderr,"\n");
if(flag == -1) {
fprintf(stderr,"Good job.\n");
fprintf(stderr,"Your checkin key is.....");
system("/checkin");
}
else {
fprintf(stderr,"flag = %d Sorry....\n",flag);
}
return 0;
}
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