From a63643a5b65463553dcb5f2dd4e911bd5a22be6b Mon Sep 17 00:00:00 2001
From: netblue30 <netblue30@protonmail.com>
Date: Mon, 29 Nov 2021 17:11:25 -0500
Subject: [PATCH] fix: allow tilde (home directory) in --netfilter file name

---
 src/firejail/main.c | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/src/firejail/main.c b/src/firejail/main.c
index b4117bb70..af2c603df 100644
--- a/src/firejail/main.c
+++ b/src/firejail/main.c
@@ -2661,6 +2661,15 @@ int main(int argc, char **argv, char **envp) {
 			if (checkcfg(CFG_NETWORK)) {
 				arg_netfilter = 1;
 				arg_netfilter_file = argv[i] + 12;
+
+				// expand tilde
+				if (*arg_netfilter_file == '~') {
+					char *tmp;
+					if (asprintf(&tmp, "%s%s", cfg.homedir, arg_netfilter_file + 1) == -1)
+						errExit("asprintf");
+					arg_netfilter_file = tmp;
+				}
+
 				check_netfilter_file(arg_netfilter_file);
 			}
 			else
@@ -2671,6 +2680,15 @@ int main(int argc, char **argv, char **envp) {
 			if (checkcfg(CFG_NETWORK)) {
 				arg_netfilter6 = 1;
 				arg_netfilter6_file = argv[i] + 13;
+
+				// expand tilde
+				if (*arg_netfilter6_file == '~') {
+					char *tmp;
+					if (asprintf(&tmp, "%s%s", cfg.homedir, arg_netfilter6_file + 1) == -1)
+						errExit("asprintf");
+					arg_netfilter6_file = tmp;
+				}
+
 				check_netfilter_file(arg_netfilter6_file);
 			}
 			else