1*0Sstevel@tonic-gate /* 2*0Sstevel@tonic-gate * CDDL HEADER START 3*0Sstevel@tonic-gate * 4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*0Sstevel@tonic-gate * with the License. 8*0Sstevel@tonic-gate * 9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*0Sstevel@tonic-gate * See the License for the specific language governing permissions 12*0Sstevel@tonic-gate * and limitations under the License. 13*0Sstevel@tonic-gate * 14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*0Sstevel@tonic-gate * 20*0Sstevel@tonic-gate * CDDL HEADER END 21*0Sstevel@tonic-gate */ 22*0Sstevel@tonic-gate /* 23*0Sstevel@tonic-gate * Copyright 1993,1998,2001-2002 Sun Microsystems, Inc. 24*0Sstevel@tonic-gate * All rights reserved. 25*0Sstevel@tonic-gate * Use is subject to license terms. 26*0Sstevel@tonic-gate */ 27*0Sstevel@tonic-gate 28*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 29*0Sstevel@tonic-gate 30*0Sstevel@tonic-gate /* 31*0Sstevel@tonic-gate * Extend regular expression matching for the file objects to allow 32*0Sstevel@tonic-gate * multiple regular expressions (instead of just 1), and to not select 33*0Sstevel@tonic-gate * regular expressions starting with a "~". This will allow adminstrator 34*0Sstevel@tonic-gate * to exclude uninteresting files from the audit trail. 35*0Sstevel@tonic-gate */ 36*0Sstevel@tonic-gate 37*0Sstevel@tonic-gate #include <stdlib.h> 38*0Sstevel@tonic-gate #include <string.h> 39*0Sstevel@tonic-gate #include <libgen.h> 40*0Sstevel@tonic-gate 41*0Sstevel@tonic-gate struct exp { 42*0Sstevel@tonic-gate char *s; /* The regular is expression */ 43*0Sstevel@tonic-gate int not; /* Exclude if matched? */ 44*0Sstevel@tonic-gate char *comp; /* The compiled regular expression */ 45*0Sstevel@tonic-gate }; 46*0Sstevel@tonic-gate 47*0Sstevel@tonic-gate static char SEP = ','; /* separator used between reg exprs */ 48*0Sstevel@tonic-gate static char NOT = '~'; /* Character used to exclude rex exprs */ 49*0Sstevel@tonic-gate static int compile = 1; /* Must we compile the expressions */ 50*0Sstevel@tonic-gate 51*0Sstevel@tonic-gate static char *fexp = NULL; /* full list of regular expressions */ 52*0Sstevel@tonic-gate static int nexp = 1; /* number of regular expressions in fexp */ 53*0Sstevel@tonic-gate static struct exp *p_exp = NULL; /* list of individual expressions */ 54*0Sstevel@tonic-gate 55*0Sstevel@tonic-gate char * 56*0Sstevel@tonic-gate re_comp2(s) 57*0Sstevel@tonic-gate char *s; 58*0Sstevel@tonic-gate { 59*0Sstevel@tonic-gate char *p; 60*0Sstevel@tonic-gate int i; 61*0Sstevel@tonic-gate static char *er = "regcmp: error"; 62*0Sstevel@tonic-gate 63*0Sstevel@tonic-gate compile = 1; 64*0Sstevel@tonic-gate if (p_exp != NULL) { 65*0Sstevel@tonic-gate for (i = 0; i < nexp; i++) 66*0Sstevel@tonic-gate if (p_exp[i].comp != NULL) 67*0Sstevel@tonic-gate free(p_exp[i].comp); 68*0Sstevel@tonic-gate free(p_exp); 69*0Sstevel@tonic-gate } 70*0Sstevel@tonic-gate if (fexp != NULL) { 71*0Sstevel@tonic-gate free(fexp); 72*0Sstevel@tonic-gate } 73*0Sstevel@tonic-gate fexp = strdup(s); 74*0Sstevel@tonic-gate for (p = fexp, nexp = 1; *p != '\0'; p++) { 75*0Sstevel@tonic-gate if (*p == SEP) { 76*0Sstevel@tonic-gate nexp++; 77*0Sstevel@tonic-gate } 78*0Sstevel@tonic-gate } 79*0Sstevel@tonic-gate p_exp = (struct exp *)malloc(nexp * sizeof (struct exp)); 80*0Sstevel@tonic-gate for (i = 0, p = fexp; *p != '\0'; i++) { 81*0Sstevel@tonic-gate p_exp[i].comp = NULL; 82*0Sstevel@tonic-gate if (*p == NOT) { 83*0Sstevel@tonic-gate p++; 84*0Sstevel@tonic-gate p_exp[i].not = 1; 85*0Sstevel@tonic-gate } else { 86*0Sstevel@tonic-gate p_exp[i].not = 0; 87*0Sstevel@tonic-gate } 88*0Sstevel@tonic-gate p_exp[i].s = p; 89*0Sstevel@tonic-gate while (*p != SEP && *p != '\0') 90*0Sstevel@tonic-gate p++; 91*0Sstevel@tonic-gate if (*p == SEP) { 92*0Sstevel@tonic-gate *p = '\0'; 93*0Sstevel@tonic-gate p++; 94*0Sstevel@tonic-gate } 95*0Sstevel@tonic-gate if (regcmp(p_exp[i].s, NULL) == NULL) 96*0Sstevel@tonic-gate return (er); 97*0Sstevel@tonic-gate } 98*0Sstevel@tonic-gate return (NULL); 99*0Sstevel@tonic-gate } 100*0Sstevel@tonic-gate 101*0Sstevel@tonic-gate int 102*0Sstevel@tonic-gate re_exec2(s) 103*0Sstevel@tonic-gate char *s; 104*0Sstevel@tonic-gate { 105*0Sstevel@tonic-gate int i; 106*0Sstevel@tonic-gate char *ret; 107*0Sstevel@tonic-gate 108*0Sstevel@tonic-gate if (compile) { 109*0Sstevel@tonic-gate for (i = 0; i < nexp; i++) { 110*0Sstevel@tonic-gate if ((p_exp[i].comp = regcmp(p_exp[i].s, NULL)) == NULL) 111*0Sstevel@tonic-gate return (-1); 112*0Sstevel@tonic-gate } 113*0Sstevel@tonic-gate compile = 0; 114*0Sstevel@tonic-gate } 115*0Sstevel@tonic-gate for (i = 0; i < nexp; i++) { 116*0Sstevel@tonic-gate ret = regex(p_exp[i].comp, s); 117*0Sstevel@tonic-gate if (ret != NULL) { 118*0Sstevel@tonic-gate return (!p_exp[i].not); 119*0Sstevel@tonic-gate } 120*0Sstevel@tonic-gate } 121*0Sstevel@tonic-gate 122*0Sstevel@tonic-gate /* no match and no more to check */ 123*0Sstevel@tonic-gate return (0); 124*0Sstevel@tonic-gate 125*0Sstevel@tonic-gate } 126*0Sstevel@tonic-gate 127*0Sstevel@tonic-gate #ifdef DEBUG 128*0Sstevel@tonic-gate re_debug_print() 129*0Sstevel@tonic-gate { 130*0Sstevel@tonic-gate int i; 131*0Sstevel@tonic-gate 132*0Sstevel@tonic-gate if (p_exp == NULL) { 133*0Sstevel@tonic-gate (void) printf("Expression is NULL\n"); 134*0Sstevel@tonic-gate return; 135*0Sstevel@tonic-gate } 136*0Sstevel@tonic-gate for (i = 0; i < nexp; i++) { 137*0Sstevel@tonic-gate (void) printf("exp #%d:", i+1); 138*0Sstevel@tonic-gate if (p_exp[i].not) 139*0Sstevel@tonic-gate (void) putchar('~'); 140*0Sstevel@tonic-gate (void) printf("%s\n", p_exp[i].s); 141*0Sstevel@tonic-gate } 142*0Sstevel@tonic-gate } 143*0Sstevel@tonic-gate #endif /* DEBUG */ 144