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 /* 23 * Copyright (c) 2000 by Sun Microsystems, Inc. 24 * All rights reserved. 25 */ 26 27 #include <pthread.h> 28 #include <string.h> 29 #include <stdlib.h> 30 31 #include "Parser.h" 32 33 // yacc symbols 34 int fruparse(void); 35 extern int frudebug; 36 37 // global data to/from the lexer 38 pthread_mutex_t gParserLock; 39 fru_errno_t gParserErrno = FRU_SUCCESS; 40 char *gParserString = NULL; 41 Ancestor *gParserAnts = NULL; 42 PathDef *gParserHead = NULL; 43 int *gParserAbs = NULL; 44 45 // returns a NULL terminated list of PathDef objects. 46 // and a NULL terminated list of ancestor objects this path exists in 47 // NOTE: ancestors may be NULL if no tags contain a valid path. 48 fru_errno_t 49 fru_field_parser(const char *path, Ancestor **ancestors, 50 int *absolute, PathDef **pathDef) 51 { 52 // lock up the globals for the parser... 53 pthread_mutex_lock(&gParserLock); 54 55 // get out a string for the parser to play with. 56 gParserString = strdup(path); 57 if (gParserString == NULL) { 58 pthread_mutex_unlock(&gParserLock); 59 return (FRU_FAILURE); 60 } 61 // save the head pointer for delete. 62 char *delPtr = gParserString; 63 64 // frudebug = 1; 65 66 // set up for return data from lexer. 67 gParserHead = NULL; 68 gParserAnts = NULL; 69 gParserErrno = FRU_SUCCESS; 70 gParserAbs = absolute; 71 *gParserAbs = 0; 72 73 int rc = fruparse(); 74 75 // clean up the string we used for yacc. 76 free(delPtr); 77 gParserString = NULL; 78 79 // frudebug = 0; 80 if (rc != 0) { 81 delete gParserHead; 82 delete gParserAnts; 83 fru_errno_t err = gParserErrno; 84 pthread_mutex_unlock(&gParserLock); 85 return (err); 86 } 87 88 /* if ((gParserHead == NULL) || (gParserAnts == NULL)) { */ 89 /* allow ancestors to be NULL */ 90 /* some elements don't have tagged ancestors */ 91 if (gParserHead == NULL) { 92 delete gParserAnts; 93 pthread_mutex_unlock(&gParserLock); 94 return (FRU_FAILURE); 95 } 96 97 *pathDef = gParserHead; 98 *ancestors = gParserAnts; 99 100 pthread_mutex_unlock(&gParserLock); 101 return (FRU_SUCCESS); 102 } 103