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-rw-r--r--src/global/rcpt_buf.c136
1 files changed, 136 insertions, 0 deletions
diff --git a/src/global/rcpt_buf.c b/src/global/rcpt_buf.c
new file mode 100644
index 0000000..d679050
--- /dev/null
+++ b/src/global/rcpt_buf.c
@@ -0,0 +1,136 @@
+/*++
+/* 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_MASTER_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
+/*--*/
+
+/* 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_MASTER_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);
+}