Make context option NOP

su.c

@@ -442,7 +442,6 @@ static void usage(int status) {
     "Options:\n"
     "  --daemon                      start the su daemon agent\n"
     "  -c, --command COMMAND         pass COMMAND to the invoked shell\n"
-    "  --context context             Change SELinux context\n"
     "  -h, --help                    display this help message and exit\n"
     "  -, -l, --login                pretend the shell to be a login shell\n"
     "  -m, -p,\n"
@@ -540,11 +539,7 @@ static __attribute__ ((noreturn)) void allow(struct su_context *ctx) {
             arg0, PARG(0), PARG(1), PARG(2), PARG(3), PARG(4), PARG(5),
             (ctx->to.optind + 6 < ctx->to.argc) ? " ..." : "");
 
-    if(ctx->to.context) {
-        setexeccon(ctx->to.context);
-    } else {
     setexeccon("u:r:su:s0");
-    }
     
     ctx->to.argv[--argc] = arg0;
     execvp(binary, ctx->to.argv + argc);
@@ -691,7 +686,6 @@ int su_main_nodaemon(int argc, char **argv) {
             .keepenv = 0,
             .shell = NULL,
             .command = NULL,
-            .context = NULL,
             .argv = argv,
             .argc = argc,
             .optind = 0,
@@ -761,7 +755,7 @@ int su_main_nodaemon(int argc, char **argv) {
                 }
                 exit(EXIT_SUCCESS);
             case 'z':
-                ctx.to.context = optarg;
+                // Do nothing, placed here for legacy support :)
                 break;
             default:
                 /* Bionic getopt_long doesn't terminate its error output by newline */

su.h

@@ -95,7 +95,6 @@ struct su_request {
     int login;
     int keepenv;
     char *shell;
-    char *context;
     char *command;
     char **argv;
     int argc;