uhttpd: properly initialize sigaction, restore SIGTERM for childs

3 files changed, 19 insertions, 2 deletions

diff --git a/contrib/package/uhttpd/src/uhttpd-cgi.c b/contrib/package/uhttpd/src/uhttpd-cgi.c
index a239c8bc99..5565197ca7 100644
--- a/contrib/package/uhttpd/src/uhttpd-cgi.c
+++ b/contrib/package/uhttpd/src/uhttpd-cgi.c
@@ -155,6 +155,7 @@ void uh_cgi_request(struct client *cl, struct http_request *req, struct path_inf
 	fd_set reader;
 	fd_set writer;
 
+	struct sigaction sa;
 	struct timeval timeout;
 	struct http_response *res;
 
@@ -184,7 +185,13 @@ void uh_cgi_request(struct client *cl, struct http_request *req, struct path_inf
 
 		/* exec child */
 		case 0:
-			/* child */
+			/* restore SIGTERM */
+			sa.sa_flags = 0;
+			sa.sa_handler = SIG_DFL;
+			sigemptyset(&sa.sa_mask);
+			sigaction(SIGTERM, &sa, NULL);
+
+			/* close loose pipe ends */
 			close(rfd[0]);
 			close(wfd[1]);
 
diff --git a/contrib/package/uhttpd/src/uhttpd-lua.c b/contrib/package/uhttpd/src/uhttpd-lua.c
index 1334aeeb41..db14eda450 100644
--- a/contrib/package/uhttpd/src/uhttpd-lua.c
+++ b/contrib/package/uhttpd/src/uhttpd-lua.c
@@ -229,6 +229,7 @@ void uh_lua_request(struct client *cl, struct http_request *req, lua_State *L)
 	fd_set reader;
 	fd_set writer;
 
+	struct sigaction sa;
 	struct timeval timeout;
 
 
@@ -255,7 +256,13 @@ void uh_lua_request(struct client *cl, struct http_request *req, lua_State *L)
 			break;
 
 		case 0:
-			/* child */
+			/* restore SIGTERM */
+			sa.sa_flags = 0;
+			sa.sa_handler = SIG_DFL;
+			sigemptyset(&sa.sa_mask);
+			sigaction(SIGTERM, &sa, NULL);
+
+			/* close loose pipe ends */
 			close(rfd[0]);
 			close(wfd[1]);
 
diff --git a/contrib/package/uhttpd/src/uhttpd.c b/contrib/package/uhttpd/src/uhttpd.c
index ea4ca00c0a..401749faee 100644
--- a/contrib/package/uhttpd/src/uhttpd.c
+++ b/contrib/package/uhttpd/src/uhttpd.c
@@ -423,6 +423,9 @@ int main (int argc, char **argv)
 	FD_ZERO(&read_fds);
 
 	/* handle SIGPIPE, SIGCHILD */
+	sa.sa_flags = 0;
+	sigemptyset(&sa.sa_mask);
+
 	sa.sa_handler = SIG_IGN;
 	sigaction(SIGPIPE, &sa, NULL);
 	sigaction(SIGCHLD, &sa, NULL);