160 lines
3.7 KiB
C
160 lines
3.7 KiB
C
/*++
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/* NAME
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/* local_transport 3
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/* SUMMARY
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/* determine if transport delivers locally
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/* SYNOPSIS
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/* #include <local_transport.h>
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/*
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/* const char *get_def_local_transport()
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/*
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/* int match_def_local_transport(transport)
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/* const char *transport;
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/*
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/* int match_any_local_transport(transport)
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/* const char *transport;
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/* DESCRIPTION
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/* This module uses the information kept in the "local_transports"
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/* configuration parameter, which lists the name of the default
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/* local transport, followed by the names of zero or more other
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/* transports that deliver locally.
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/*
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/* get_def_local_transport() returns the name of the default local
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/* transport, that is, the first transport name specified with
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/* the "local_transports" configuration parameter.
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/*
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/* match_def_local_transport() determines if the named transport is
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/* identical to the default local transport.
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/*
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/* match_any_local_transport() determines if the named transport is
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/* listed in the "local_transports" configuration parameter.
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/* SEE ALSO
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/* resolve_local(3), see if address resolves locally
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/* LICENSE
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/* .ad
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/* .fi
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/* The Secure Mailer license must be distributed with this software.
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/* AUTHOR(S)
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/* Wietse Venema
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/* IBM T.J. Watson Research
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/* P.O. Box 704
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/* Yorktown Heights, NY 10598, USA
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/*--*/
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/* System library. */
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#include <sys_defs.h>
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#include <string.h>
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/* Utility library. */
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#include <msg.h>
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#include <mymalloc.h>
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#include <string_list.h>
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/* Global library. */
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#include <mail_params.h>
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#include <local_transport.h>
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/* Application-specific */
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static STRING_LIST *local_transport_list;
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static char *local_transport_name;
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/* local_transport_init - initialize lookup table */
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static void local_transport_init(void)
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{
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char *myname = "local_transport_init";
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/*
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* Sanity check.
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*/
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if (local_transport_list || local_transport_name)
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msg_panic("local_transport_init: duplicate initialization");
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/*
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* Initialize.
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*/
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local_transport_list = string_list_init(var_local_transports);
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local_transport_name = mystrndup(var_local_transports,
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strcspn(var_local_transports, ", \t\r\n"));
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/*
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* Sanity check.
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*/
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if (!match_any_local_transport(local_transport_name)
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|| !match_def_local_transport(local_transport_name))
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msg_panic("%s: unable to intialize", myname);
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}
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/* get_def_local_transport - determine default local transport */
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const char *get_def_local_transport(void)
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{
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/*
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* Initialize on the fly.
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*/
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if (local_transport_name == 0)
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local_transport_init();
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/*
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* Return the first transport listed.
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*/
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return (local_transport_name);
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}
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/* match_def_local_transport - match against default local transport */
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int match_def_local_transport(const char *transport)
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{
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/*
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* Initialize on the fly.
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*/
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if (local_transport_list == 0)
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local_transport_init();
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/*
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* Compare the transport against the list of transports that are listed
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* as delivering locally.
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*/
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return (strcmp(transport, local_transport_name) == 0);
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}
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/* match_any_local_transport - match against list of local transports */
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int match_any_local_transport(const char *transport)
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{
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/*
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* Initialize on the fly.
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*/
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if (local_transport_list == 0)
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local_transport_init();
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/*
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* Compare the transport against the list of transports that are listed
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* as delivering locally.
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*/
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return (string_list_match(local_transport_list, transport));
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}
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#ifdef TEST
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#include <vstream.h>
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#include <mail_conf.h>
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int main(int argc, char **argv)
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{
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if (argc != 2)
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msg_fatal("usage: %s transport", argv[0]);
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mail_conf_read();
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vstream_printf("%s\n", match_any_local_transport(argv[1]) ? "yes" : "no");
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vstream_fflush(VSTREAM_OUT);
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}
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#endif
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