fix memory leak from reading nsswitch.conf

MFC after:	1 week

2 files changed, 7 insertions, 0 deletions

diff --git a/lib/libc/net/nsdispatch.c b/lib/libc/net/nsdispatch.c
index 0e3c419..ad3f208 100644
--- a/lib/libc/net/nsdispatch.c
+++ b/lib/libc/net/nsdispatch.c
@@ -412,6 +412,8 @@ static void
 ns_dbt_free(ns_dbt *dbt)
 {
 	ns_src_free(&dbt->srclist, dbt->srclistsize);
+	if (dbt->name)
+		free((void *)dbt->name);
 }
 
 
diff --git a/lib/libc/net/nsparser.y b/lib/libc/net/nsparser.y
index 1f0fff1..730458a 100644
--- a/lib/libc/net/nsparser.y
+++ b/lib/libc/net/nsparser.y
@@ -82,6 +82,9 @@ Lines
 Entry
 	: NL
 	| Database ':' NL
+		{
+			free((char*)curdbt.name);
+		}
 	| Database ':' Srclist NL
 		{
 			_nsdbtput(&curdbt);
@@ -163,6 +166,7 @@ _nsaddsrctomap(elem)
 			syslog(LOG_ERR,
 	    "NSSWITCH(nsparser): %s line %d: 'compat' used with sources, other than 'cache'",
 			    _PATH_NS_CONF, lineno);
+			free((void*)elem);
 			return;
 		}
 	}
@@ -171,6 +175,7 @@ _nsaddsrctomap(elem)
 			syslog(LOG_ERR,
 		       "NSSWITCH(nsparser): %s line %d: duplicate source '%s'",
 			    _PATH_NS_CONF, lineno, elem);
+			free((void*)elem);
 			return;
 		}
 	}