From db67cc2f4b5b1282cb2be719ebb6bfd5a52f9169 Mon Sep 17 00:00:00 2001
From: Daniel Shahaf <d.s@daniel.shahaf.name>
Date: Tue, 18 Sep 2018 18:57:12 +0000
Subject: 43489: Add error checking on a new write() call.

Silences a compiler warning (write(2) is declared with warn_unused_result
in current Debian Unstable).
---
 Src/exec.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

(limited to 'Src/exec.c')

diff --git a/Src/exec.c b/Src/exec.c
index a667b078d..1d537af24 100644
--- a/Src/exec.c
+++ b/Src/exec.c
@@ -2745,7 +2745,10 @@ execcmd_fork(Estate state, int how, int type, Wordcode varspc,
 	flags |= ESUB_JOB_CONTROL;
     *filelistp = jobtab[thisjob].filelist;
     entersubsh(flags, &esret);
-    write(synch[1], &esret, sizeof(esret));
+    if (write_loop(synch[1], (const void *) &esret, sizeof(esret)) != sizeof(esret)) {
+	zerr("Failed to send entersubsh_ret report: %e", errno);
+	return -1;
+    }
     close(synch[1]);
     zclose(close_if_forked);
 
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