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/*++
/* NAME
/* namadr_list 3
/* SUMMARY
/* name/address list membership
/* SYNOPSIS
/* #include <namadr_list.h>
/*
/* NAMADR_LIST *namadr_list_init(pattern_list)
/* const char *pattern_list;
/*
/* int namadr_list_match(list, name, addr)
/* NAMADR_LIST *list;
/* const char *name;
/* const char *addr;
/*
/* void namadr_list_free(list)
/* NAMADR_LIST *list;
/* DESCRIPTION
/* This module implements tests for list membership of a
/* hostname or network address.
/*
/* A list pattern specifies a host name, a domain name,
/* an internet address, or a network/mask pattern, where the
/* mask specifies the number of bits in the network part.
/* When a pattern specifies a file name, its contents are
/* substituted for the file name; when a pattern is a
/* type:name table specification, table lookup is used
/* instead.
/* Patterns are separated by whitespace and/or commas. In
/* order to reverse the result, precede a non-file name
/* pattern with an exclamation point (!).
/*
/* A host matches a list when its name or address matches
/* a pattern, or when any of its parent domains matches a
/* pattern. The matching process is case insensitive.
/*
/* namadr_list_init() performs initializations. The argument
/* is a list of patterns, or the absolute pathname of a file
/* with patterns.
/*
/* namadr_list_match() matches the specified host name and
/* address against the specified list of patterns.
/*
/* namadr_list_free() releases storage allocated by namadr_list_init().
/* DIAGNOSTICS
/* Fatal errors: unable to open or read a pattern file; invalid
/* pattern. Panic: interface violations.
/* SEE ALSO
/* match_list(3) generic list matching
/* match_ops(3) match host by name or by address
/* 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 <match_list.h>
#include <match_ops.h>
/* Global library. */
#include "namadr_list.h"
/* namadr_list_init - initialize domain list */
NAMADR_LIST *namadr_list_init(const char *patterns)
{
return (match_list_init(patterns, 2, match_hostaddr, match_hostname));
}
/* namadr_list_match - match host against set of namadr_list patterns */
int namadr_list_match(NAMADR_LIST *list, const char *name, const char *addr)
{
return (match_list_match(list, addr, name));
}
/* namadr_list_free - release storage */
void namadr_list_free(NAMADR_LIST *list)
{
match_list_free(list);
}
#ifdef TEST
#include <msg.h>
#include <stdlib.h>
#include <vstream.h>
#include <msg_vstream.h>
static void usage(char *progname)
{
msg_fatal("usage: %s [-v] pattern_list hostname address", progname);
}
main(int argc, char **argv)
{
NAMADR_LIST *list;
char *host;
char *addr;
int ch;
msg_vstream_init(argv[0], VSTREAM_ERR);
while ((ch = GETOPT(argc, argv, "v")) > 0) {
switch (ch) {
case 'v':
msg_verbose++;
break;
default:
usage(argv[0]);
}
}
if (argc != optind + 3)
usage(argv[0]);
list = namadr_list_init(argv[optind]);
host = argv[optind + 1];
addr = argv[optind + 2];
vstream_printf("%s/%s: %s\n", host, addr,
namadr_list_match(list, host, addr) ?
"YES" : "NO");
vstream_fflush(VSTREAM_OUT);
namadr_list_free(list);
}
#endif
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