interface: allocate and free memory for jail name

Memory returned by blogmsg_get_string() is volatile, hence use strdup()
to have a permanent copy of the returned string and free it when no
longer needed.

Fixes: 1321c1b ("add basic support for jail network namespaces")
Signed-off-by: Daniel Golle <daniel@makrotopia.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/interface.h b/interface.h
index 0d384ef..cd09812 100644
--- a/interface.h
+++ b/interface.h
@@ -108,7 +108,7 @@ struct interface {
 
 	const char *name;
 	const char *ifname;
-	const char *jail;
+	char *jail;
 	int netns_fd;
 
 	bool available;