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diff --git a/src/global/trace.c b/src/global/trace.c
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+/*++
+/* NAME
+/* trace 3
+/* SUMMARY
+/* user requested delivery tracing
+/* SYNOPSIS
+/* #include <trace.h>
+/*
+/* int trace_append(flags, id, stats, rcpt, relay, dsn)
+/* int flags;
+/* const char *id;
+/* MSG_STATS *stats;
+/* RECIPIENT *rcpt;
+/* const char *relay;
+/* DSN *dsn;
+/*
+/* int trace_flush(flags, queue, id, encoding, sender,
+/* dsn_envid, dsn_ret)
+/* int flags;
+/* const char *queue;
+/* const char *id;
+/* const char *encoding;
+/* const char *sender;
+/* const char *dsn_envid;
+/* int dsn_ret;
+/* DESCRIPTION
+/* trace_append() updates the message delivery record that is
+/* mailed back to the originator. In case of a trace-only
+/* message, the recipient status is also written to the
+/* mailer logfile.
+/*
+/* trace_flush() returns the specified message to the specified
+/* sender, including the message delivery record log that was built
+/* with vtrace_append().
+/*
+/* Arguments:
+/* .IP flags
+/* The bitwise OR of zero or more of the following (specify
+/* BOUNCE_FLAG_NONE to request no special processing):
+/* .RS
+/* .IP BOUNCE_FLAG_CLEAN
+/* Delete the logfile in case of an error (as in: pretend
+/* that we never even tried to deliver this message).
+/* .RE
+/* .IP queue
+/* The message queue name of the original message file.
+/* .IP id
+/* The message queue id.
+/* .IP encoding
+/* The body content encoding: MAIL_ATTR_ENC_{7BIT,8BIT,NONE}.
+/* .IP sender
+/* The sender envelope address.
+/* .IP dsn_envid
+/* Optional DSN envelope ID.
+/* .IP dsn_ret
+/* Optional DSN return full/headers option.
+/* .IP stats
+/* Time stamps from different message delivery stages
+/* and session reuse count.
+/* .IP rcpt
+/* Recipient information. See recipient_list(3).
+/* .IP relay
+/* The host we sent the mail to.
+/* .IP dsn
+/* Delivery status information. See dsn(3).
+/* DIAGNOSTICS
+/* A non-zero result means the operation failed.
+/*
+/* Fatal: out of memory.
+/* BUGS
+/* Should be replaced by routines with an attribute-value based
+/* interface instead of an interface that uses a rigid argument list.
+/* 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>
+#include <stdio.h>
+#include <string.h>
+
+/* Utility library. */
+
+#include <msg.h>
+#include <vstring.h>
+
+/* Global library. */
+
+#include <mail_params.h>
+#include <mail_proto.h>
+#include <log_adhoc.h>
+#include <rcpt_print.h>
+#include <dsn_print.h>
+#include <trace.h>
+
+/* trace_append - append to message delivery record */
+
+int trace_append(int flags, const char *id, MSG_STATS *stats,
+ RECIPIENT *rcpt, const char *relay,
+ DSN *dsn)
+{
+ VSTRING *why = vstring_alloc(100);
+ DSN my_dsn = *dsn;
+ int req_stat;
+
+ /*
+ * User-requested address verification, verbose delivery, or DSN SUCCESS
+ * notification.
+ */
+ if (strcmp(relay, NO_RELAY_AGENT) != 0)
+ vstring_sprintf(why, "delivery via %s: ", relay);
+ vstring_strcat(why, my_dsn.reason);
+ my_dsn.reason = vstring_str(why);
+
+ if (mail_command_client(MAIL_CLASS_PRIVATE, var_trace_service,
+ SEND_ATTR_INT(MAIL_ATTR_NREQ, BOUNCE_CMD_APPEND),
+ SEND_ATTR_INT(MAIL_ATTR_FLAGS, flags),
+ SEND_ATTR_STR(MAIL_ATTR_QUEUEID, id),
+ SEND_ATTR_FUNC(rcpt_print, (void *) rcpt),
+ SEND_ATTR_FUNC(dsn_print, (void *) &my_dsn),
+ ATTR_TYPE_END) != 0) {
+ msg_warn("%s: %s service failure", id, var_trace_service);
+ req_stat = -1;
+ } else {
+ if (flags & DEL_REQ_FLAG_USR_VRFY)
+ log_adhoc(id, stats, rcpt, relay, dsn, my_dsn.action);
+ req_stat = 0;
+ }
+ vstring_free(why);
+ return (req_stat);
+}
+
+/* trace_flush - deliver delivery record to the sender */
+
+int trace_flush(int flags, const char *queue, const char *id,
+ const char *encoding, const char *sender,
+ const char *dsn_envid, int dsn_ret)
+{
+ if (mail_command_client(MAIL_CLASS_PRIVATE, var_trace_service,
+ SEND_ATTR_INT(MAIL_ATTR_NREQ, BOUNCE_CMD_TRACE),
+ SEND_ATTR_INT(MAIL_ATTR_FLAGS, flags),
+ SEND_ATTR_STR(MAIL_ATTR_QUEUE, queue),
+ SEND_ATTR_STR(MAIL_ATTR_QUEUEID, id),
+ SEND_ATTR_STR(MAIL_ATTR_ENCODING, encoding),
+ SEND_ATTR_STR(MAIL_ATTR_SENDER, sender),
+ SEND_ATTR_STR(MAIL_ATTR_DSN_ENVID, dsn_envid),
+ SEND_ATTR_INT(MAIL_ATTR_DSN_RET, dsn_ret),
+ ATTR_TYPE_END) == 0) {
+ return (0);
+ } else {
+ return (-1);
+ }
+}