/*++ /* NAME /* domain_list 3 /* SUMMARY /* match a host or domain name against a pattern list /* SYNOPSIS /* #include <domain_list.h> /* /* DOMAIN_LIST *domain_list_init(flags, pattern_list) /* int flags; /* const char *pattern_list; /* /* int domain_list_match(list, name) /* DOMAIN_LIST *list; /* const char *name; /* /* void domain_list_free(list) /* DOMAIN_LIST *list; /* DESCRIPTION /* This is a convenience wrapper around the match_list module. /* /* This module implements tests for list membership of a host or /* domain name. /* /* Patterns are separated by whitespace and/or commas. A pattern /* is either a string, a file name (in which case the contents /* of the file are substituted for the file name) or a type:name /* lookup table specification. /* /* A host name matches a domain list when its name appears in the /* list of domain patterns, or when any of its parent domains appears /* in the list of domain patterns. The matching process is case /* insensitive. In order to reverse the result, precede a /* pattern with an exclamation point (!). /* /* domain_list_init() performs initializations. The first argument /* is the bit-wise OR of zero or more of the following: /* .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. /* .IP MATCH_FLAG_RETURN /* Request that domain_list_match() logs a warning and returns /* zero, with list->error set to a non-zero dictionary error /* code, instead of raising a fatal error. /* .PP /* Specify MATCH_FLAG_NONE to request none of the above. /* The second argument is a list of domain patterns, or the name of /* a file containing domain patterns. /* /* domain_list_match() matches the specified host or domain name /* against the specified pattern list. /* /* domain_list_free() releases storage allocated by domain_list_init(). /* DIAGNOSTICS /* Fatal error: unable to open or read a domain_list file; invalid /* domain_list pattern. /* SEE ALSO /* match_list(3) generic list matching /* match_ops(3) match hosts 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 "domain_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] patterns hostname", progname); } int main(int argc, char **argv) { DOMAIN_LIST *list; char *host; 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 + 2) usage(argv[0]); list = domain_list_init(MATCH_FLAG_PARENT | MATCH_FLAG_RETURN, argv[optind]); host = argv[optind + 1]; vstream_printf("%s: %s\n", host, domain_list_match(list, host) ? "YES" : list->error == 0 ? "NO" : "ERROR"); vstream_fflush(VSTREAM_OUT); domain_list_free(list); return (0); } #endif