/*++ /* NAME /* namadr_list 3 /* SUMMARY /* name/address list membership /* SYNOPSIS /* #include <namadr_list.h> /* /* NAMADR_LIST *namadr_list_init(flags, pattern_list) /* int flags; /* 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 is a convenience wrapper around the match_list module. /* /* 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 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 first /* argument is the bit-wise OR of zero or more of the /* following: /* .RS /* .IP MATCH_FLAG_PARENT /* The hostname pattern foo.com matches itself and any name below /* the domain foo.com. If this flag is cleared, foo.com matches itself /* only, and .foo.com matches any name below the domain foo.com. /* .RE /* Specify MATCH_FLAG_NONE to request none of the above. /* The second 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> /* Global library. */ #include "namadr_list.h" #ifdef TEST #include <msg.h> #include <stdlib.h> #include <unistd.h> #include <vstream.h> #include <msg_vstream.h> static void usage(char *progname) { msg_fatal("usage: %s [-v] pattern_list hostname address", progname); } int 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(MATCH_FLAG_PARENT, 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); return (0); } #endif