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