platform_system_core.patch

From 6c6cdbafc58925f2bef26c49088ca332c4d74584 Mon Sep 17 00:00:00 2001
From: Daniel Zhang <danielzhang130@gmail.com>
Date: Wed, 3 Jan 2024 16:23:50 -0500
Subject: [PATCH] add force option in run-as

Change-Id: I9f929e85fed6414e474cc312b09ad709c20ab105
Signed-off-by: Daniel Zhang <danielzhang130@gmail.com>
---
 run-as/run-as.cpp | 32 +++++++++++++++++++++-----------
 1 file changed, 21 insertions(+), 11 deletions(-)

diff --git a/run-as/run-as.cpp b/run-as/run-as.cpp
index 32057b4..6a80653 100644
--- a/run-as/run-as.cpp
+++ b/run-as/run-as.cpp
@@ -181,10 +181,18 @@ int main(int argc, char* argv[]) {
 
   // Get user_id from command line if provided.
   int userId = 0;
-  if ((argc >= 4) && !strcmp(argv[2], "--user")) {
-    userId = atoi(argv[3]);
-    if (userId < 0) error(1, 0, "negative user id: %d", userId);
-    cmd_argv_offset += 2;
+  bool force = false;
+  for (int arg = 2; arg < argc; ++arg) {
+    if (arg + 1 < argc && !strcmp(argv[arg], "--user")) {
+      userId = atoi(argv[++arg]);
+      if (userId < 0) error(1, 0, "negative user id: %d", userId);
+      cmd_argv_offset += 2;
+    } else if (!strcmp(argv[arg], "-f")) {
+      force = true;
+      ++cmd_argv_offset;
+    } else {
+        break;
+    }
   }
 
   // Retrieve package information from system, switching egid so we can read the file.
@@ -208,14 +216,16 @@ int main(int argc, char* argv[]) {
   // Calculate user app ID.
   uid_t userAppId = (AID_USER_OFFSET * userId) + info.uid;
 
-  // Reject system packages.
-  if (userAppId < AID_APP) {
-    error(1, 0, "package not an application: %s", pkgname);
-  }
+  if (!force) {
+      // Reject system packages.
+      if (userAppId < AID_APP) {
+        error(1, 0, "package not an application: %s", pkgname);
+      }
 
-  // Reject any non-debuggable package.
-  if (!info.debuggable) {
-    error(1, 0, "package not debuggable: %s", pkgname);
+      // Reject any non-debuggable package.
+      if (!info.debuggable) {
+        error(1, 0, "package not debuggable: %s", pkgname);
+      }
   }
 
   // Ensure we have the right data path for the specific user.
-- 
2.34.1