1 files changed, 141 insertions, 0 deletions
diff --git a/src/global/rcpt_buf.c b/src/global/rcpt_buf.c
new file mode 100644
index 0000000..8a3ae0f
--- /dev/null
+++ b/src/global/rcpt_buf.c
@@ -0,0 +1,141 @@
+/*++
+/* NAME
+/*	rcpt_buf
+/* SUMMARY
+/*	recipient buffer manager
+/* SYNOPSIS
+/*	#include <rcpt_buf.h>
+/*
+/*	typedef struct {
+/*		RECIPIENT rcpt;		/* convenience */
+/* .in +4
+/*		VSTRING *address;	/* final recipient */
+/*		VSTRING *orig_addr;	/* original recipient */
+/*		VSTRING *dsn_orcpt;	/* dsn original recipient */
+/*		int     dsn_notify;	/* DSN notify flags */
+/*		long    offset;		/* REC_TYPE_RCPT byte */
+/* .in -4
+/*	} RCPT_BUF;
+/*
+/*	RECIPIENT *RECIPIENT_FROM_RCPT_BUF(rcpb)
+/*	RCPT_BUF *rcpb;
+/*
+/*	RCPT_BUF *rcpb_create(void)
+/*
+/*	void	rcpb_reset(rcpb)
+/*	RCPT_BUF *rcpb;
+/*
+/*	void	rcpb_free(rcpb)
+/*	RCPT_BUF *rcpb;
+/*
+/*	int	rcpb_scan(scan_fn, stream, flags, ptr)
+/*	ATTR_SCAN_COMMON_FN scan_fn;
+/*	VSTREAM *stream;
+/*	int	flags;
+/*	void	*ptr;
+/* DESCRIPTION
+/*	RECIPIENT_FROM_RCPT_BUF() populates the rcpt member with
+/*	a shallow copy of the contents of the other fields.
+/*
+/*	rcpb_scan() reads a recipient buffer from the named stream
+/*	using the specified attribute scan routine. rcpb_scan()
+/*	is meant to be passed as a call-back to attr_scan(), thusly:
+/*
+/*	... ATTR_TYPE_FUNC, rcpb_scan, (void *) rcpt_buf, ...
+/*
+/*	rcpb_create(), rcpb_reset() and rcpb_free() create, wipe
+/*	and destroy recipient buffer instances.
+/* DIAGNOSTICS
+/*	Fatal: out of memory.
+/* 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
+/*
+/*	Wietse Venema
+/*	Google, Inc.
+/*	111 8th Avenue
+/*	New York, NY 10011, USA
+/*--*/
+
+/* System library. */
+
+#include <sys_defs.h>
+
+/* Utility library. */
+
+#include <mymalloc.h>
+#include <vstring.h>
+#include <vstream.h>
+
+/* Global library. */
+
+#include <mail_proto.h>
+#include <rcpt_buf.h>
+
+/* Application-specific. */
+
+/* rcpb_create - create recipient buffer */
+
+RCPT_BUF *rcpb_create(void)
+{
+    RCPT_BUF *rcpt;
+
+    rcpt = (RCPT_BUF *) mymalloc(sizeof(*rcpt));
+    rcpt->offset = 0;
+    rcpt->dsn_orcpt = vstring_alloc(10);
+    rcpt->dsn_notify = 0;
+    rcpt->orig_addr = vstring_alloc(10);
+    rcpt->address = vstring_alloc(10);
+    return (rcpt);
+}
+
+/* rcpb_reset - reset recipient buffer */
+
+void    rcpb_reset(RCPT_BUF *rcpt)
+{
+#define BUF_TRUNCATE(s) (vstring_str(s)[0] = 0)
+
+    rcpt->offset = 0;
+    BUF_TRUNCATE(rcpt->dsn_orcpt);
+    rcpt->dsn_notify = 0;
+    BUF_TRUNCATE(rcpt->orig_addr);
+    BUF_TRUNCATE(rcpt->address);
+}
+
+/* rcpb_free - destroy recipient buffer */
+
+void    rcpb_free(RCPT_BUF *rcpt)
+{
+    vstring_free(rcpt->dsn_orcpt);
+    vstring_free(rcpt->orig_addr);
+    vstring_free(rcpt->address);
+    myfree((void *) rcpt);
+}
+
+/* rcpb_scan - receive recipient buffer */
+
+int     rcpb_scan(ATTR_SCAN_COMMON_FN scan_fn, VSTREAM *fp,
+		          int flags, void *ptr)
+{
+    RCPT_BUF *rcpt = (RCPT_BUF *) ptr;
+    int     ret;
+
+    /*
+     * The order of attributes is determined by historical compatibility and
+     * can be fixed after all the ad-hoc read/write code is replaced.
+     */
+    ret = scan_fn(fp, flags | ATTR_FLAG_MORE,
+		  RECV_ATTR_STR(MAIL_ATTR_ORCPT, rcpt->orig_addr),
+		  RECV_ATTR_STR(MAIL_ATTR_RECIP, rcpt->address),
+		  RECV_ATTR_LONG(MAIL_ATTR_OFFSET, &rcpt->offset),
+		  RECV_ATTR_STR(MAIL_ATTR_DSN_ORCPT, rcpt->dsn_orcpt),
+		  RECV_ATTR_INT(MAIL_ATTR_DSN_NOTIFY, &rcpt->dsn_notify),
+		  ATTR_TYPE_END);
+    return (ret == 5 ? 1 : -1);
+}