Author: jilles
Date: Sat Jun 2 20:18:34 2012
New Revision: 236490
URL: http://svn.freebsd.org/changeset/base/236490
Log:
MFC r236193: libfetch: Avoid SIGPIPE on network connections.
To avoid unexpected process termination from SIGPIPE when writing to a
closed network connection, enable SO_NOSIGPIPE on all network connections.
The POSIX standard MSG_NOSIGNAL is not used since it requires modifying all
send calls to add this flag. This is particularly nasty for SSL connections.
Modified:
stable/9/lib/libfetch/common.c
Directory Properties:
stable/9/lib/libfetch/ (props changed)
Modified: stable/9/lib/libfetch/common.c
==============================================================================
--- stable/9/lib/libfetch/common.c Sat Jun 2 20:00:52 2012
(r236489)
+++ stable/9/lib/libfetch/common.c Sat Jun 2 20:18:34 2012
(r236490)
@@ -209,11 +209,13 @@ conn_t *
fetch_reopen(int sd)
{
conn_t *conn;
+ int opt = 1;
/* allocate and fill connection structure */
if ((conn = calloc(1, sizeof(*conn))) == NULL)
return (NULL);
fcntl(sd, F_SETFD, FD_CLOEXEC);
+ setsockopt(sd, SOL_SOCKET, SO_NOSIGPIPE, &opt, sizeof opt);
conn->sd = sd;
++conn->ref;
return (conn);
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