Don't block writing to child's stdin

1 files changed, 2 insertions, 2 deletions

diff --git a/qarshd.c b/qarshd.c
index 8d1a798..daead85 100644
--- a/qarshd.c
+++ b/qarshd.c
@@ -103,7 +103,7 @@ run_cmd(const char *cmd)
 	pid_t pid;
 	int pipefds[2], parentfds[3];
 
-	pipe(pipefds);
+	pipe2(pipefds, O_NONBLOCK);
 	childfds[0] = pipefds[1]; parentfds[0] = pipefds[0]; /* stdin */
 	pipe(pipefds);
 	childfds[1] = pipefds[0]; parentfds[1] = pipefds[1]; /* stdout */
@@ -412,7 +412,7 @@ handle_qarsh()
 					memmove(buf_in, buf_in+nbytes, z_in - nbytes);
 					z_in -= nbytes;
 				}
-				if (!eof_in) {
+				if (!eof_in && nbytes > 0) {
 					qp = make_qp_data_allow(0, nbytes);
 					send_packet(qoutfd, qp);
 					qpfree(qp);