Prevent open FIFO prom leaking to subprocess

This fix previews window staying open after nnn exits, because they
inherited open FIFO (in write mode) from parent nnn process, and never
close it.

diff --git a/src/nnn.c b/src/nnn.c
index 069599b3e18a4dfbf45d8e1f88a23a5f31d1d9f9..73e656ce2b14d3645c025b7b0fa5266ce0b2cc09 100644 (file)
--- a/src/nnn.c
+++ b/src/nnn.c
@@ -4679,7 +4679,7 @@ static void populate(char *path, char *lastname)
 static void notify_fifo()
 {
        if (fifofd == -1) {
-               fifofd = open(fifopath, O_WRONLY|O_NONBLOCK);
+               fifofd = open(fifopath, O_WRONLY|O_NONBLOCK|O_CLOEXEC);
                if (fifofd == -1) {
                        if (errno != ENXIO)
                                /* Unexpected error, the FIFO file might have been removed */