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/*++
/* NAME
/* smtpd_xforward 3
/* SUMMARY
/* maintain XCLIENT information
/* SYNOPSIS
/* #include "smtpd.h"
/*
/* void smtpd_xforward_init(state)
/* SMTPD_STATE *state;
/*
/* void smtpd_xforward_preset(state)
/* SMTPD_STATE *state;
/*
/* void smtpd_xforward_reset(state)
/* SMTPD_STATE *state;
/* DESCRIPTION
/* smtpd_xforward_init() zeroes the attributes for storage of
/* XFORWARD command parameters.
/*
/* smtpd_xforward_preset() takes the result from smtpd_xforward_init()
/* and sets all fields to the same "unknown" value that regular
/* client attributes would have.
/*
/* smtpd_xforward_reset() restores the state from smtpd_xforward_init().
/* 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 <msg.h>
/* Global library. */
#include <mail_proto.h>
/* Application-specific. */
#include <smtpd.h>
/* smtpd_xforward_init - initialize xforward attributes */
void smtpd_xforward_init(SMTPD_STATE *state)
{
state->xforward.flags = 0;
state->xforward.name = 0;
state->xforward.addr = 0;
state->xforward.port = 0;
state->xforward.namaddr = 0;
state->xforward.protocol = 0;
state->xforward.helo_name = 0;
state->xforward.ident = 0;
state->xforward.domain = 0;
}
/* smtpd_xforward_preset - set xforward attributes to "unknown" */
void smtpd_xforward_preset(SMTPD_STATE *state)
{
/*
* Sanity checks.
*/
if (state->xforward.flags)
msg_panic("smtpd_xforward_preset: bad flags: 0x%x",
state->xforward.flags);
/*
* This is a temporary solution. Unknown forwarded attributes get the
* same values as unknown normal attributes, so that we don't break
* assumptions in pre-existing code.
*/
state->xforward.flags = SMTPD_STATE_XFORWARD_INIT;
state->xforward.name = mystrdup(CLIENT_NAME_UNKNOWN);
state->xforward.addr = mystrdup(CLIENT_ADDR_UNKNOWN);
state->xforward.port = mystrdup(CLIENT_PORT_UNKNOWN);
state->xforward.namaddr = mystrdup(CLIENT_NAMADDR_UNKNOWN);
state->xforward.rfc_addr = mystrdup(CLIENT_ADDR_UNKNOWN);
/* Leave helo at zero. */
state->xforward.protocol = mystrdup(CLIENT_PROTO_UNKNOWN);
/* Leave ident at zero. */
/* Leave domain context at zero. */
}
/* smtpd_xforward_reset - reset xforward attributes */
void smtpd_xforward_reset(SMTPD_STATE *state)
{
#define FREE_AND_WIPE(s) { if (s) myfree(s); s = 0; }
state->xforward.flags = 0;
FREE_AND_WIPE(state->xforward.name);
FREE_AND_WIPE(state->xforward.addr);
FREE_AND_WIPE(state->xforward.port);
FREE_AND_WIPE(state->xforward.namaddr);
FREE_AND_WIPE(state->xforward.rfc_addr);
FREE_AND_WIPE(state->xforward.protocol);
FREE_AND_WIPE(state->xforward.helo_name);
FREE_AND_WIPE(state->xforward.ident);
FREE_AND_WIPE(state->xforward.domain);
}
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