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Add option -p [n] for setting network ports (use behind a firewall)

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This commit is contained in:
fduncanh
2021-08-01 23:25:04 -04:00
parent 5aa5420a5e
commit 4c6c58d192
1 changed files with 40 additions and 7 deletions
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45
uxplay.cpp
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@@ -40,6 +40,8 @@
#define DEFAULT_HW_ADDRESS { (char) 0x48, (char) 0x5d, (char) 0x60, (char) 0x7c, (char) 0xee, (char) 0x22 }
#define DEFAULT_DISPLAY_WIDTH 1920
#define DEFAULT_DISPLAY_HEIGHT 1080
#define LOWEST_ALLOWED_PORT 1023
#define HIGHEST_PORT 65535
int start_server(std::vector<char> hw_addr, std::string name, unsigned short display_size[2],
@@ -93,13 +95,15 @@ std::string find_mac() {
}
void print_info(char *name) {
printf("RPiPlay %s: An open-source AirPlay mirroring server for Raspberry Pi\n", VERSION);
printf("Usage: %s [-n name]\n", name);
printf("UxPlay %s: An open-source AirPlay mirroring server based on RPiPlay\n", VERSION);
printf("Usage: %s [-n name] [-s wxh] [-p [n]]\n", name);
printf("Options:\n");
printf("-n name Specify the network name of the AirPlay server\n");
printf("-s wxh Set display size: width w height h default 1920x1080\n");
printf("-p n Use fixed UDP+TCP network ports n:n+1:n+2 > 1023\n");
printf("-p Use legacy UDP 6000:6001:7011 TCP 7000:7001:7100\n");
printf("-a Turn audio off. Only video output\n");
printf("-d Enable debug logging\n");
printf("-d Enable debug logging\n");
printf("-v/-h Displays this help and version information\n");
}
@@ -123,6 +127,16 @@ bool get_display_size(char *str, unsigned short *w, unsigned short *h) {
return valid_size;
}
bool get_lowest_port(char *str, unsigned short *n) {
if (strlen(str) > 5) return false;
char *end;
long l = strtoul(str, &end, 10);
if (*end) return false;
if (l < LOWEST_ALLOWED_PORT || l > HIGHEST_PORT - 2 ) return false;
*n = (unsigned short) l;
return true;
}
int main(int argc, char *argv[]) {
init_signals();
@@ -131,7 +145,7 @@ int main(int argc, char *argv[]) {
bool use_audio = true;
bool debug_log = DEFAULT_DEBUG_LOG;
unsigned short display_size[2] = { (unsigned short) DEFAULT_DISPLAY_WIDTH, (unsigned short) DEFAULT_DISPLAY_HEIGHT };
unsigned short tcp[2] = {0}, udp[3] = {0};
#ifdef AVAHI_COMPAT_NOWARN
//suppress avahi_compat nag message
@@ -152,11 +166,27 @@ int main(int argc, char *argv[]) {
}
std::string value(argv[++i]);
if (!get_display_size(argv[i], &display_size[1], &display_size[2])) {
fprintf(stderr, "Error: \"-s %s\" is invalid; format is \"-s 1920x1080\" (numbers <= 4 digits)\n",value.c_str());
fprintf(stderr, "invalid \"-s %s\"; default is \"-s 1920x1080\" (< 5 digits)\n",
value.c_str());
exit(1);
}
} else if (arg == "-p") {
if (i == argc - 1 || argv[i + 1][0] == '-') {
tcp[0] = 7100; tcp[1] = 7000;
udp[0] = 7011; udp[1] = 6001; udp[2] = 6000;
continue;
}
unsigned short n;
if(get_lowest_port(argv[++i], &n)) {
for (int i = 0; i < 3; i++) {
udp[i] = n++;
if (i < 2) tcp[i] = udp[i];
}
} else {
fprintf(stderr, "Error: \"-p %s\" is invalid (%d-%d is allowed)\n",
argv[i], LOWEST_ALLOWED_PORT, HIGHEST_PORT);
exit(1);
}
} else if (arg == "-a") {
use_audio = false;
} else if (arg == "-d") {
@@ -167,6 +197,9 @@ int main(int argc, char *argv[]) {
}
}
if (udp[0]) LOGI("using network ports UDP %d %d %d TCP %d %d %d\n",
udp[0],udp[1], udp[2], tcp[0], tcp[1], tcp[1] + 1);
std::string mac_address = find_mac();
if (!mac_address.empty()) {
server_hw_addr.clear();