1 /* $NetBSD: addr_match_list.c,v 1.2 2017/02/14 01:16:45 christos Exp $ */
2
3 /*++
4 /* NAME
5 /* addr_match_list 3
6 /* SUMMARY
7 /* address list membership
8 /* SYNOPSIS
9 /* #include <addr_match_list.h>
10 /*
11 /* ADDR_MATCH_LIST *addr_match_list_init(pname, flags, pattern_list)
12 /* const char *pname;
13 /* int flags;
14 /* const char *pattern_list;
15 /*
16 /* int addr_match_list_match(list, addr)
17 /* ADDR_MATCH_LIST *list;
18 /* const char *addr;
19 /*
20 /* void addr_match_list_free(list)
21 /* ADDR_MATCH_LIST *list;
22 /* DESCRIPTION
23 /* This is a convenience wrapper around the match_list module.
24 /*
25 /* This module implements tests for list membership of a
26 /* network address.
27 /*
28 /* A list pattern specifies an internet address, or a network/mask
29 /* pattern, where the mask specifies the number of bits in the
30 /* network part. When a pattern specifies a file name, its
31 /* contents are substituted for the file name; when a pattern
32 /* is a type:name table specification, table lookup is used
33 /* instead. Patterns are separated by whitespace and/or commas.
34 /* In order to reverse the result, precede a pattern with an
35 /* exclamation point (!).
36 /*
37 /* A host matches a list when its address matches a pattern.
38 /* The matching process is case insensitive.
39 /*
40 /* addr_match_list_init() performs initializations. The pname
41 /* argument specifies error reporting context. The flags
42 /* argument is the bit-wise OR of zero or more of the following:
43 /* .IP MATCH_FLAG_RETURN
44 /* Request that addr_match_list_match() logs a warning and
45 /* returns zero with list->error set to a non-zero dictionary
46 /* error code, instead of raising a fatal error.
47 /* .PP
48 /* Specify MATCH_FLAG_NONE to request none of the above.
49 /* The last argument is a list of patterns, or the absolute
50 /* pathname of a file with patterns.
51 /*
52 /* addr_match_list_match() matches the specified host address
53 /* against the specified list of patterns.
54 /*
55 /* addr_match_list_free() releases storage allocated by
56 /* addr_match_list_init().
57 /* DIAGNOSTICS
58 /* Fatal errors: unable to open or read a pattern file; invalid
59 /* pattern. Panic: interface violations.
60 /* SEE ALSO
61 /* match_list(3) generic list matching
62 /* match_ops(3) match host by name or by address
63 /* LICENSE
64 /* .ad
65 /* .fi
66 /* The Secure Mailer license must be distributed with this software.
67 /* AUTHOR(S)
68 /* Wietse Venema
69 /* IBM T.J. Watson Research
70 /* P.O. Box 704
71 /* Yorktown Heights, NY 10598, USA
72 /*--*/
73
74 /* System library. */
75
76 #include <sys_defs.h>
77
78 /* Utility library. */
79
80 #include <match_list.h>
81
82 /* Global library. */
83
84 #include "addr_match_list.h"
85
86 #ifdef TEST
87
88 #include <stdlib.h>
89 #include <unistd.h>
90 #include <string.h>
91 #include <msg.h>
92 #include <vstream.h>
93 #include <vstring_vstream.h>
94 #include <msg_vstream.h>
95 #include <dict.h>
96 #include <stringops.h> /* util_utf8_enable */
97
usage(char * progname)98 static void usage(char *progname)
99 {
100 msg_fatal("usage: %s [-v] pattern_list address", progname);
101 }
102
main(int argc,char ** argv)103 int main(int argc, char **argv)
104 {
105 ADDR_MATCH_LIST *list;
106 char *addr;
107 int ch;
108
109 msg_vstream_init(argv[0], VSTREAM_ERR);
110
111 while ((ch = GETOPT(argc, argv, "v")) > 0) {
112 switch (ch) {
113 case 'v':
114 msg_verbose++;
115 break;
116 default:
117 usage(argv[0]);
118 }
119 }
120 if (argc != optind + 2)
121 usage(argv[0]);
122 dict_allow_surrogate = 1;
123 util_utf8_enable = 1;
124 list = addr_match_list_init("command line", MATCH_FLAG_PARENT
125 | MATCH_FLAG_RETURN, argv[optind]);
126 addr = argv[optind + 1];
127 if (strcmp(addr, "-") == 0) {
128 VSTRING *buf = vstring_alloc(100);
129
130 while (vstring_get_nonl(buf, VSTREAM_IN) != VSTREAM_EOF)
131 vstream_printf("%s: %s\n", vstring_str(buf),
132 addr_match_list_match(list, vstring_str(buf)) ?
133 "YES" : list->error == 0 ? "NO" : "ERROR");
134 vstring_free(buf);
135 } else {
136 vstream_printf("%s: %s\n", addr,
137 addr_match_list_match(list, addr) > 0 ?
138 "YES" : list->error == 0 ? "NO" : "ERROR");
139 }
140 vstream_fflush(VSTREAM_OUT);
141 addr_match_list_free(list);
142 return (0);
143 }
144
145 #endif
146