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 * 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 * 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 87 free_rexp(char *arg) 88 { 89 Free(arg); 90 } 91 92 static int 93 fcheck_rexp(FIELD *f, char *arg) 94 { 95 return (libform_regex(arg, field_buffer(f, 0), NULL) ? TRUE : FALSE); 96 } 97