diff --git a/src/desock.c b/src/desock.c
index 85a28c7..1b121f2 100644
--- a/src/desock.c
+++ b/src/desock.c
@@ -1,6 +1,8 @@
 #define _GNU_SOURCE
 
+#include <assert.h>
 #include <netinet/in.h>
+#include <sys/stat.h>
 #include <sys/socket.h>
 #include <sys/types.h>
 #include <pthread.h>
@@ -8,6 +10,7 @@
 #include <unistd.h>
 #include <string.h>
 #include <signal.h>
+#include <fcntl.h>
 #include <dlfcn.h>
 #include <errno.h>
 #include <stdio.h>
@@ -18,11 +21,12 @@
 #define PREENY_MAX_FD 8192
 #define PREENY_SOCKET_OFFSET 500
 #define READ_BUF_SIZE 65536
+#define INPUT_FILE_PATH_ENV "PREENY_DESOCK_INFILE"
 
 #define PREENY_SOCKET(x) (x+PREENY_SOCKET_OFFSET)
 
 int preeny_desock_shutdown_flag = 0;
-int preeny_desock_did_accept = 0;
+int in_fd = 0;
 
 pthread_t *preeny_socket_threads_to_front[PREENY_MAX_FD] = { 0 };
 pthread_t *preeny_socket_threads_to_back[PREENY_MAX_FD] = { 0 };
@@ -36,6 +40,7 @@ int preeny_socket_sync(int from, int to, int timeout)
 	int n;
 	int r;
 
+
 	r = poll(&poll_in, 1, timeout);
 	if (r < 0)
 	{
@@ -141,7 +146,8 @@ void *preeny_socket_sync_to_front(void *fd)
 {
 	int front_fd = (int)fd;
 	int back_fd = PREENY_SOCKET(front_fd);
-	preeny_socket_sync_loop(0, back_fd);
+	/* Read fd here */
+	preeny_socket_sync_loop(in_fd, back_fd);
 	return NULL;
 }
 
@@ -160,6 +166,11 @@ __attribute__((constructor)) void preeny_desock_orig()
 	original_accept = dlsym(RTLD_NEXT, "accept");
 	original_bind = dlsym(RTLD_NEXT, "bind");
 	original_connect = dlsym(RTLD_NEXT, "connect");
+
+	if (getenv(INPUT_FILE_PATH_ENV) != NULL) {
+		in_fd = open(getenv(INPUT_FILE_PATH_ENV), O_RDONLY);
+		assert(in_fd != -1 && "Input file not found");
+	}
 }
 
 int socket(int domain, int type, int protocol)
@@ -187,6 +198,7 @@ int socket(int domain, int type, int protocol)
 
 	front_socket = fds[0];
 	back_socket = dup2(fds[1], PREENY_SOCKET(front_socket));
+	printf("front = %d, back = %d\n", front_socket, back_socket);
 	close(fds[1]);
 
 	preeny_debug("... dup into socketpair (%d, %d)\n", fds[0], back_socket);
@@ -213,10 +225,6 @@ int socket(int domain, int type, int protocol)
 
 int accept(int sockfd, struct sockaddr *addr, socklen_t *addrlen)
 {
-	if (preeny_desock_did_accept)
-		exit(0);
-	preeny_desock_did_accept = 1;
-
 	//initialize a sockaddr_in for the peer
 	 struct sockaddr_in peer_addr;
 	 memset(&peer_addr, '0', sizeof(struct sockaddr_in));