Fixed: Fix termux-api commands hanging indefinitely on Android 14 by always using TermuxAm to send intents instead of the socket server that is run by the app

This is currently only done for Android `>= 14` and is a temporary patch until termux-app release is made with finalized support for termux-am-socket to send intents

Closes termux/termux-api#638, termux/termux-app#3754
Related termux/termux-app#3647, termux/TermuxAm@8b9844ab

Author: agnostic-apollo

termux-api.c

@@ -16,6 +16,10 @@
 #include <time.h>
 #include <unistd.h>
 
+#ifdef __ANDROID__
+#include <android/api-level.h>
+#endif
+
 #include "termux-api.h"
 
 #ifndef PREFIX
@@ -44,8 +48,21 @@ _Noreturn void contact_plugin(int argc, char** argv,
     };
     sigaction(SIGPIPE, &sigpipe_action, NULL);
 
-    // try to connect over the listen socket first
-    int listenfd = socket(AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC, 0);
+    // Try to connect over the listen socket first if running on Android `< 14`.
+    // On Android `>= 14`, if termux-api app process was started previously
+    // and it started the socket server, but later Android froze the
+    // process, the socket will still be connectable, but no response
+    // will be received until the app process is unfrozen agin and
+    // `read()` call below will hang indefinitely until that happens,
+    // so use legacy `am broadcast` command, which will also unfreeze
+    // the app process to deliver the intent.
+    // - https://github.com/termux/termux-api/issues/638#issuecomment-1813233924
+    int listenfd = -1;
+    #ifdef __ANDROID__
+        if (android_get_device_api_level() < 34) {
+            listenfd = socket(AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC, 0);
+        }
+    #endif
     if (listenfd != -1) {
         struct sockaddr_un listen_addr = { .sun_family = AF_UNIX };
         memcpy(listen_addr.sun_path+1, LISTEN_SOCKET_ADDRESS, strlen(LISTEN_SOCKET_ADDRESS));