1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License, Version 1.0 only
6 * (the "License"). You may not use this file except in compliance
7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22 /* Copyright (c) 1988 AT&T */
23 /* All Rights Reserved */
24
25
26 /*
27 * Copyright 2004 Sun Microsystems, Inc. All rights reserved.
28 * Use is subject to license terms.
29 */
30
31 /*LINTLIBRARY*/
32
33 #include <sys/types.h>
34 #include <stdlib.h>
35 #include "utility.h"
36
37 /*
38 * TYPE_REGEXP standard type
39 *
40 * usage:
41 * set_field_type(f, TYPE_REGEXP, expression);
42 *
43 * char * expression; regular expression regcmp(3C)
44 */
45 extern char *libform_regcmp(char *, char *);
46 extern char *libform_regex(char *, char *, char *);
47 static char *make_rexp(va_list *);
48 static char *copy_rexp(char *);
49 static void free_rexp(char *);
50 static int fcheck_rexp(FIELD *, char *);
51
52 static FIELDTYPE typeREGEXP =
53 {
54 ARGS, /* status */
55 1, /* ref */
56 (FIELDTYPE *) 0, /* left */
57 (FIELDTYPE *) 0, /* right */
58 make_rexp, /* makearg */
59 copy_rexp, /* copyarg */
60 free_rexp, /* freearg */
61 fcheck_rexp, /* fcheck */
62 (PTF_int) 0, /* ccheck */
63 (PTF_int) 0, /* next */
64 (PTF_int) 0, /* prev */
65 };
66
67 FIELDTYPE * TYPE_REGEXP = &typeREGEXP;
68
69 static char *
make_rexp(va_list * ap)70 make_rexp(va_list *ap)
71 {
72 return (libform_regcmp(va_arg(*ap, char *), NULL));
73 /* (...)$n will dump core */
74 }
75
76 static char *
copy_rexp(char * arg)77 copy_rexp(char *arg)
78 {
79 char *rexp;
80
81 if (arrayAlloc(rexp, (strlen(arg) + 1), char))
82 (void) strcpy(rexp, arg);
83 return (rexp);
84 }
85
86 static void
free_rexp(char * arg)87 free_rexp(char *arg)
88 {
89 Free(arg);
90 }
91
92 static int
fcheck_rexp(FIELD * f,char * arg)93 fcheck_rexp(FIELD *f, char *arg)
94 {
95 return (libform_regex(arg, field_buffer(f, 0), NULL) ? TRUE : FALSE);
96 }
97