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-rw-r--r--support/Makefile1
-rw-r--r--support/xaccept4.c32
-rw-r--r--support/xsocket.h1
3 files changed, 34 insertions, 0 deletions
diff --git a/support/Makefile b/support/Makefile
index 1f33fa0c74..38dbd832e9 100644
--- a/support/Makefile
+++ b/support/Makefile
@@ -50,6 +50,7 @@ libsupport-routines = \
temp_file \
write_message \
xaccept \
+ xaccept4 \
xasprintf \
xbind \
xcalloc \
diff --git a/support/xaccept4.c b/support/xaccept4.c
new file mode 100644
index 0000000000..67dd95e9fb
--- /dev/null
+++ b/support/xaccept4.c
@@ -0,0 +1,32 @@
+/* accept4 with error checking.
+ Copyright (C) 2017 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <support/xsocket.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <support/check.h>
+
+int
+xaccept4 (int fd, struct sockaddr *sa, socklen_t *salen, int flags)
+{
+ int clientfd = accept4 (fd, sa, salen, flags);
+ if (clientfd < 0)
+ FAIL_EXIT1 ("accept4 (%d, 0x%x): %m", fd, flags);
+ return clientfd;
+}
diff --git a/support/xsocket.h b/support/xsocket.h
index 0dbf13ace9..d6724948d8 100644
--- a/support/xsocket.h
+++ b/support/xsocket.h
@@ -30,6 +30,7 @@ void xconnect (int, const struct sockaddr *, socklen_t);
void xbind (int, const struct sockaddr *, socklen_t);
void xlisten (int, int);
int xaccept (int, struct sockaddr *, socklen_t *);
+int xaccept4 (int, struct sockaddr *, socklen_t *, int);
void xsendto (int, const void *, size_t, int,
const struct sockaddr *, socklen_t);
size_t xrecvfrom (int, void *, size_t, int, struct sockaddr *, socklen_t *);