update make-appimage

test/appimage/main.c

@@ -1,3 +1,60 @@
+/*
+ * Copyright (C) 2014-2025 Firejail Authors
+ *
+ * This file is part of firejail project
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+/* How to build an appimage type 2 based on this program (Debian 13 stable):
+   
+   $ wget https://github.com/AppImage/appimagetool/releases/download/continuous/appimagetool-x86_64.AppImage
+   $ mv appimagetool-x86_64.AppImage ~/tmp/.
+   $ cd ~/tmp
+   $ sudo apt-get install zsync
+   $ mkdir -p AppDir/usr/bin
+
+   create a hello-world.png in AppDir/.
+
+   $ cat AppDir/AppRun
+   #!/bin/bash
+   exec $APPDIR/usr/bin/hello-world $@
+   $ chmod +x AppDir/AppRun
+ 
+   $ gcc -o hello-world main.c
+   $ cp hello-world AppDir/usr/bin/.
+   $ ARCH=x86_64 ./appimagetool-x86_64.AppImage AppDir HelloWorld.AppImage
+   $ firejail --appimage HelloWorld.AppImage arg1 arg2 arg3
+   [...]
+   Mounting appimage type 2
+   Base filesystem installed in 32.00 ms
+   Child process initialized in 74.17 ms
+   Hello, Firejail!
+   1 - arg1
+   2 - arg2
+   3 - arg3
+
+   *** container firejail ***
+   *** NoNewPrivs 1 ***
+   *** Seccomp 2 ***
+
+   Parent is shutting down, bye...
+   AppImage detached
+   $
+*/
+
 #include <stdio.h>
 #include <stdlib.h>
 #include <unistd.h>
@@ -7,12 +64,14 @@
 
 int main(int argc, char **argv) {
 	printf("Hello, Firejail!\n");
-
+	
 	// test args
 	int i;
 	for (i = 1; i < argc; i++)
 		printf("%d - %s\n", i, argv[i]);
 
+
+    
 	char *cont = getenv("container");
 	if (cont)
 		printf("\n*** container %s ***\n", cont);
@@ -29,7 +88,7 @@ int main(int argc, char **argv) {
 			char *ptr = strchr(buf, '\n');
 			if (ptr)
 				*ptr = '\0';
-
+		    
 			if (strncmp(buf, "NoNewPrivs:", 11) == 0) {
 				ptr = buf + 11;
 				while (*ptr == ' ' || *ptr == '\t')
@@ -37,7 +96,7 @@ int main(int argc, char **argv) {
 				printf("*** NoNewPrivs %s ***\n", ptr);
 				sleep(1);
 			}
-
+			
 			if (strncmp(buf, "Seccomp:", 8) == 0) {
 				ptr = buf + 8;
 				while (*ptr == ' ' || *ptr == '\t')
@@ -47,6 +106,6 @@ int main(int argc, char **argv) {
 		}
 		fclose(fp);
 	}
-
+	    
 	return 0;
 }