1 files changed, 66 insertions, 0 deletions
diff --git a/src/smtpd/smtpd_proxy.h b/src/smtpd/smtpd_proxy.h
new file mode 100644
index 0000000..3d35d07
--- /dev/null
+++ b/src/smtpd/smtpd_proxy.h
@@ -0,0 +1,66 @@
+/*++
+/* NAME
+/*	smtpd_proxy 3h
+/* SUMMARY
+/*	SMTP server pass-through proxy client
+/* SYNOPSIS
+/*	#include <smtpd.h>
+/*	#include <smtpd_proxy.h>
+/* DESCRIPTION
+/* .nf
+
+ /*
+  * Utility library.
+  */
+#include <vstream.h>
+#include <vstring.h>
+
+ /*
+  * Application-specific.
+  */
+typedef int PRINTFPTRLIKE(3, 4) (*SMTPD_PROXY_CMD_FN) (SMTPD_STATE *, int, const char *,...);
+typedef int PRINTFPTRLIKE(3, 4) (*SMTPD_PROXY_REC_FPRINTF_FN) (VSTREAM *, int, const char *,...);
+typedef int (*SMTPD_PROXY_REC_PUT_FN) (VSTREAM *, int, const char *, ssize_t);
+
+typedef struct SMTPD_PROXY {
+    /* Public. */
+    VSTREAM *stream;
+    VSTRING *request;			/* proxy request buffer */
+    VSTRING *reply;			/* proxy reply buffer */
+    SMTPD_PROXY_CMD_FN cmd;
+    SMTPD_PROXY_REC_FPRINTF_FN rec_fprintf;
+    SMTPD_PROXY_REC_PUT_FN rec_put;
+    /* Private. */
+    int     flags;
+    VSTREAM *service_stream;
+    const char *service_name;
+    int     timeout;
+    const char *ehlo_name;
+    const char *mail_from;
+} SMTPD_PROXY;
+
+#define SMTPD_PROXY_FLAG_SPEED_ADJUST	(1<<0)
+
+#define SMTPD_PROXY_NAME_SPEED_ADJUST	"speed_adjust"
+
+#define SMTPD_PROX_WANT_BAD	0xff	/* Do not use */
+#define SMTPD_PROX_WANT_NONE	'\0'	/* Do not receive reply */
+#define SMTPD_PROX_WANT_ANY	'0'	/* Expect any reply */
+#define SMTPD_PROX_WANT_OK	'2'	/* Expect 2XX reply */
+#define SMTPD_PROX_WANT_MORE	'3'	/* Expect 3XX reply */
+
+extern int smtpd_proxy_create(SMTPD_STATE *, int, const char *, int, const char *, const char *);
+extern void smtpd_proxy_close(SMTPD_STATE *);
+extern void smtpd_proxy_free(SMTPD_STATE *);
+extern int smtpd_proxy_parse_opts(const char *, const char *);
+
+/* 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
+/*--*/