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-rw-r--r--erts/emulator/sys/unix/sys_uds.c15
1 files changed, 13 insertions, 2 deletions
diff --git a/erts/emulator/sys/unix/sys_uds.c b/erts/emulator/sys/unix/sys_uds.c
index 278c6b6ba1..39a4866065 100644
--- a/erts/emulator/sys/unix/sys_uds.c
+++ b/erts/emulator/sys/unix/sys_uds.c
@@ -1,7 +1,7 @@
/*
* %CopyrightBegin%
*
- * Copyright Ericsson AB 2002-2016. All Rights Reserved.
+ * Copyright Ericsson AB 2002-2018. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@@ -132,7 +132,7 @@ sys_uds_writev(int fd, struct iovec *iov, size_t iov_len,
struct msghdr msg;
struct cmsghdr *cmsg = NULL;
- int res, i;
+ int res, i, error;
/* initialize socket message */
memset(&msg, 0, sizeof(struct msghdr));
@@ -173,11 +173,22 @@ sys_uds_writev(int fd, struct iovec *iov, size_t iov_len,
res = sendmsg(fd, &msg, flags);
+#ifdef ETOOMANYREFS
+ /* Linux may give ETOOMANYREFS when there are too many fds in transit.
+ We map this to EMFILE as bsd and other use this error code and we want
+ the behaviour to be the same on all OSs */
+ if (errno == ETOOMANYREFS)
+ errno = EMFILE;
+#endif
+ error = errno;
+
if (iov_len > MAXIOV)
free(iov[0].iov_base);
free(msg.msg_control);
+ errno = error;
+
return res;
}