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4 Commits

Author SHA1 Message Date
330e6fd27b Added Usage section to README 2023-02-23 00:20:06 -06:00
70b6b6b604 Added support for cli args 2023-02-22 23:57:15 -06:00
5f11a3294b Added Makefile 2023-02-22 23:57:03 -06:00
b7b3911c4d Added .gitignore 2023-02-22 23:56:56 -06:00
4 changed files with 27 additions and 4 deletions

2
.gitignore vendored Normal file
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@@ -0,0 +1,2 @@
proxy
easysock.o

5
Makefile Normal file
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@@ -0,0 +1,5 @@
CC=gcc
main: main.c easysock.c
$(CC) main.c easysock.c -o proxy
allwarn: main.c easysock.c
$(CC) -Wall main.c easysock.c -o proxy

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@@ -7,3 +7,6 @@ It is written in C, and has a small file size and memory footprint.
## Installation
TODO
## Usage
./proxy <local-address> <local-port> <remote-address> <remote-port>

21
main.c
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@@ -3,6 +3,7 @@
#include <unistd.h>
#include <stdlib.h>
#include "easysock.h"
void forward_data(int from_fd, int to_fd) {
int n = 0;
char* buffer = malloc(3000*sizeof(char));
@@ -11,20 +12,32 @@ void forward_data(int from_fd, int to_fd) {
}
}
int main() {
int main(int argc,char* argv[]) {
/* argv[1] = local address
argv[2] = local port
argv[3] = remote address
argv[4] = remote port */
char* local_addr = argv[1];
int local_port = strtol(argv[2],NULL,10);
char* remote_addr = argv[3];
int remote_port = strtol(argv[4],NULL,10);
int preferred_network = 4;
char preferred_transport = 'T';
struct sockaddr addr_struct;
int server_sock = create_local(preferred_network,preferred_transport,"127.0.0.1",3000,&addr_struct);
int server_sock = create_local(preferred_network,preferred_transport,local_addr,local_port,&addr_struct);
int addrlen = sizeof(addr_struct);
listen(server_sock,50); /* Arbitrary number, change later */
printf("Listening on %s:%d\n",local_addr,local_port);
while (1) {
int from_client = accept(server_sock,&addr_struct,(socklen_t *)&addrlen);
int to_server = create_remote(preferred_network,preferred_transport,"127.0.0.1",5000);
int to_server = create_remote(preferred_network,preferred_transport,remote_addr,remote_port);
printf("Connection established to %s:%d\n",remote_addr,remote_port);
if (fork() == 0) {
/* fork returns 0 for a child, so we're in the child's execution