static void check_firejail_comm(ProcessHandle process) {
	// open /proc/pid/comm
	// note: comm value is under control of the target process
	FILE *fp = process_fopen(process, "comm");

	char comm[16];
	if (fscanf(fp, "%15s", comm) != 1) {
		fprintf(stderr, "Error: cannot read /proc file\n");
		exit(1);
	}
	fclose(fp);

	if (strcmp(comm, "firejail") != 0) {
		fprintf(stderr, "Error: no valid sandbox\n");
		exit(1);
	}

	return;
}
static void check_firejail_comm(ProcessHandle process) {
	 
	 
	FILE *fp = process_fopen(process, "comm");

	char comm[16];
	if (fscanf(fp, "%15s", comm) != 1) {
		fprintf(stderr, "Error: cannot read /proc file\n");
		exit(1);
	}
	fclose(fp);

	if (strcmp(comm, "firejail") != 0) {
		fprintf(stderr, "Error: no valid sandbox\n");
		exit(1);
	}

	return;
}