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Add listen address to proxy (C and python).

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This allows forwarding from an external port to the same port on
localhost (loopback). I.e.

./utils/wsproxy `hostname -f`:5901 localhost:5901
This commit is contained in:
Joel Martin
2010-06-16 12:37:03 -05:00
parent f755ca9631
commit f2898eabd3
5 changed files with 83 additions and 27 deletions
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44
utils/wsproxy.c
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@@ -28,7 +28,7 @@ Traffic Legend:\n\
";
void usage() {
fprintf(stderr,"Usage: <listen_port> <target_host> <target_port>\n");
fprintf(stderr,"Usage: [--record FILE] [source_addr:]source_port target_addr:target_port\n");
exit(1);
}
@@ -239,19 +239,43 @@ void proxy_handler(ws_ctx_t *ws_ctx) {
int main(int argc, char *argv[])
{
int listen_port, idx=1;
int listen_port, idx = 1;
char *listen_host;
if (strcmp(argv[idx], "--record") == 0) {
if (argc < 2) {
usage();
}
if (strncmp(argv[idx], "--record", 8) == 0) {
idx++;
record_filename = argv[idx++];
}
if ((argc-idx) != 3) { usage(); }
listen_port = strtol(argv[idx++], NULL, 10);
if (errno != 0) { usage(); }
target_host = argv[idx++];
target_port = strtol(argv[idx++], NULL, 10);
if (errno != 0) { usage(); }
if ((argc-idx) != 2) {
usage();
}
if (strstr(argv[idx], ":")) {
listen_host = strtok(argv[idx], ":");
listen_port = strtol(strtok(NULL, ":"), NULL, 10);
} else {
listen_host = NULL;
listen_port = strtol(argv[idx], NULL, 10);
}
idx++;
if ((errno != 0) || (listen_port == 0)) {
usage();
}
if (strstr(argv[idx], ":")) {
target_host = strtok(argv[idx], ":");
target_port = strtol(strtok(NULL, ":"), NULL, 10);
} else {
usage();
}
if ((errno != 0) || (target_port == 0)) {
usage();
}
/* Initialize buffers */
bufsize = 65536;
@@ -264,7 +288,7 @@ int main(int argc, char *argv[])
if (! (cbuf_tmp = malloc(bufsize)) )
{ fatal("malloc()"); }
start_server(listen_port, &proxy_handler);
start_server(listen_port, &proxy_handler, listen_host);
free(tbuf);
free(cbuf);