1 files changed, 67 insertions, 0 deletions
diff --git a/src/util/unix_pass_fd_fix.c b/src/util/unix_pass_fd_fix.c
new file mode 100644
index 0000000..9522e61
--- /dev/null
+++ b/src/util/unix_pass_fd_fix.c
@@ -0,0 +1,67 @@
+/*++
+/* NAME
+/*	unix_pass_fd_fix 3
+/* SUMMARY
+/*	file descriptor passing bug workarounds
+/* SYNOPSIS
+/*	#include <iostuff.h>
+/*
+/*	void	set_unix_pass_fd_fix(workarounds)
+/*	const char *workarounds;
+/* DESCRIPTION
+/*	This module supports programmatic control over workarounds
+/*	for sending or receiving file descriptors over UNIX-domain
+/*	sockets.
+/*
+/*	set_unix_pass_fd_fix() takes a list of workarounds in external
+/*	form, and stores their internal representation. The result
+/*	is used by unix_send_fd() and unix_recv_fd().
+/*
+/*	Arguments:
+/* .IP workarounds
+/*	List of zero or more of the following, separated by comma
+/*	or whitespace.
+/* .RS
+/* .IP cmsg_len
+/*	Send the CMSG_LEN of the file descriptor, instead of
+/*	the total message buffer length.
+/* .RE
+/* SEE ALSO
+/*	unix_send_fd(3) send file descriptor
+/*	unix_recv_fd(3) receive file descriptor
+/* DIAGNOSTICS
+/*	Fatal errors: non-existent workaround.
+/* LICENSE
+/* .ad
+/* .fi
+/*	The Secure Mailer license must be distributed with this software.
+/* AUTHOR(S)
+/*	Wietse Venema
+/*	IBM T.J. Watson Research
+/*	P.O. Box 704
+/*	Yorktown Heights, NY 10598, USA
+/*--*/
+
+/* System library. */
+
+#include <sys_defs.h>
+
+/* Utility library. */
+
+#include <iostuff.h>
+#include <name_mask.h>
+
+int     unix_pass_fd_fix = 0;
+
+/* set_unix_pass_fd_fix - set workaround programmatically */
+
+void    set_unix_pass_fd_fix(const char *workarounds)
+{
+    const static NAME_MASK table[] = {
+	"cmsg_len", UNIX_PASS_FD_FIX_CMSG_LEN,
+	0,
+    };
+
+    unix_pass_fd_fix = name_mask("descriptor passing workarounds",
+				 table, workarounds);
+}