From f621f368002806982acaae4b5bc92ee72342d587 Mon Sep 17 00:00:00 2001
From: "Jason A. Donenfeld" <Jason@zx2c4.com>
Date: Tue, 24 Jul 2018 13:12:40 +0200
Subject: [PATCH] wg-quick: android: allow package to be overridden

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
---
 src/wg-quick/android.c | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/src/wg-quick/android.c b/src/wg-quick/android.c
index 12108c0..610e99c 100644
--- a/src/wg-quick/android.c
+++ b/src/wg-quick/android.c
@@ -7,6 +7,7 @@
  */
 
 #define _GNU_SOURCE
+#include <stddef.h>
 #include <stdlib.h>
 #include <stdio.h>
 #include <stdbool.h>
@@ -24,8 +25,11 @@
 #include <sys/wait.h>
 #include <sys/param.h>
 
+#ifndef WG_PACKAGE_NAME
+#define WG_PACKAGE_NAME "com.wireguard.android"
+#endif
 #ifndef WG_CONFIG_SEARCH_PATHS
-#define WG_CONFIG_SEARCH_PATHS "/data/misc/wireguard /data/data/com.wireguard.android/files"
+#define WG_CONFIG_SEARCH_PATHS "/data/misc/wireguard /data/data/" WG_PACKAGE_NAME "/files"
 #endif
 
 #define _printf_(x, y) __attribute__((format(printf, x, y)))
@@ -34,7 +38,7 @@
 
 static bool is_exiting = false;
 
-/* TODO: remove this once the NDK supports it. */
+#if defined(__ANDROID_API__) && __ANDROID_API__ < 24
 static char *strchrnul(const char *s, int c)
 {
 	char *x = strchr(s, c);
@@ -42,6 +46,7 @@ static char *strchrnul(const char *s, int c)
 		return (char *)s + strlen(s);
 	return x;
 }
+#endif
 
 static void *xmalloc(size_t size)
 {
@@ -598,8 +603,8 @@ static void broadcast_change(void)
 {
 	const char *pkg = getenv("CALLING_PACKAGE");
 
-	if (!pkg || strcmp(pkg, "com.wireguard.android"))
-		cmd("am broadcast -a com.wireguard.android.action.REFRESH_TUNNEL_STATES com.wireguard.android");
+	if (!pkg || strcmp(pkg, WG_PACKAGE_NAME))
+		cmd("am broadcast -a com.wireguard.android.action.REFRESH_TUNNEL_STATES " WG_PACKAGE_NAME);
 }
 
 static void print_search_paths(FILE *file, const char *prefix)