httpd: restore HUP, CHLD and PIPE to SIG_DFL prior to execing CGI.

function                                             old     new   delta
send_cgi_and_exit                                    856     869     +13

diff --git a/networking/httpd.c b/networking/httpd.c
index b4a8d27..ed699df 100644 (file)
--- a/networking/httpd.c
+++ b/networking/httpd.c
@@ -1457,6 +1457,13 @@ static void send_cgi_and_exit(
                                }
                        }
 #endif
+                       /* restore default signal dispositions for CGI process */
+                       bb_signals(0
+                               | (1 << SIGCHLD)
+                               | (1 << SIGPIPE)
+                               | (1 << SIGHUP)
+                               , SIG_DFL);
+
                        execv(fullpath, argv);
                        if (verbose)
                                bb_perror_msg("exec %s", fullpath);