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#include <stdio.h>
#include <errno.h>
#include <string.h>
#include <unistd.h>
#include <stdlib.h>
#include <stdarg.h>
#include <sys/types.h>
#include <poll.h>
#include <dirent.h>
//Needs NULL as last arg!!
int run_start(char* _prog, char* _args[])
{
pid_t pid = fork();
if( pid < 0 )
return 1;
else if (pid == 0)
{
//wait(0);
return 0;
}
setsid();
if(fork())
exit(0);
close(STDOUT_FILENO);
close(STDIN_FILENO);
close(STDERR_FILENO);
execv(_prog, _args);
exit(1);
}
//Need NULL as last arg!!
int run_stdio(char* _prog, const char* _args[])
{
int fork_pipe_out[2];
int fork_pipe_in [2];
pid_t pid;
if(pipe(fork_pipe_out) == -1)
return 1;
if(pipe(fork_pipe_in) == -1)
return 1;
if((pid = fork()) == -1)
return 2;
if (pid == 0)
{
//replace STDIO
dup2(fork_pipe_out[1], STDOUT_FILENO);
dup2(fork_pipe_in [0], STDIN_FILENO );
close (fork_pipe_out[0]);
close (fork_pipe_in [1]);
execv(_prog, _args);
//Error handling
int err = errno;
printf("Fuckup %i: %s\n", err, strerror(err));
exit(1);
}
else
{
close(fork_pipe_out[1]);
close(fork_pipe_in [0]);
int ret;
struct pollfd fds[2];
fds[0].fd = STDIN_FILENO;
fds[0].events = POLLIN;
fds[1].fd = fork_pipe_out[0];
fds[1].events = POLLIN;
while(1)//Check for data while pipe is open
{
int timeout = 1; //Timeout msecs
ret = poll(fds, 2, timeout);
if(ret < 0)
break;
else if (ret == 0)
continue;
int nbytes;
char buffer[256];
if(fds[0].revents & POLLIN) //STDIN_FILENO
{
nbytes = read(STDIN_FILENO, buffer, sizeof(buffer));
write(fork_pipe_in[1], buffer, nbytes);
//write(fork_pipe_in[1], "\n", 1);
}
if(fds[1].revents & POLLIN) //PIPE
{
nbytes = read(fork_pipe_out[0], buffer, sizeof(buffer));
write(STDOUT_FILENO, buffer, nbytes);
//write(STDOUT_FILENO, "\n", 1);
}
}
wait(0);
}
}
int exists(const char *fname)
{
FILE *file;
if ((file = fopen(fname, "r")))
{
fclose(file);
return 1;
}
return 0;
}
int main(int argc, char* argv[])
{
printf("MegumInit explosion!\n");
//char* arg[] = {"/bin/bash" ,(char*)0};
//run_start(arg[0], arg);
char* arg2[] = {"/bin/toybox", "echo", "/test.asdf", NULL};
run_start(arg2[0], arg2);
sleep(2);
printf("%i\n", exists("/test.asdf"));
printf("\nEND\n");
sleep(99999);
return 0;
}
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