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-rw-r--r--src/util/unix_pass_fd_fix.c67
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diff --git a/src/util/unix_pass_fd_fix.c b/src/util/unix_pass_fd_fix.c
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+/*++
+/* 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 workarouds 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);
+}