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 #ifdef __cplusplus 35 extern "C" { 36 #endif 37 int fruparse(void); 38 extern int frudebug; 39 #ifdef __cplusplus 40 } 41 #endif 42 43 // global data to/from the lexer 44 pthread_mutex_t gParserLock; 45 fru_errno_t gParserErrno = FRU_SUCCESS; 46 char *gParserString = NULL; 47 Ancestor *gParserAnts = NULL; 48 PathDef *gParserHead = NULL; 49 int *gParserAbs = NULL; 50 51 // returns a NULL terminated list of PathDef objects. 52 // and a NULL terminated list of ancestor objects this path exists in 53 // NOTE: ancestors may be NULL if no tags contain a valid path. 54 fru_errno_t 55 fru_field_parser(const char *path, Ancestor **ancestors, 56 int *absolute, PathDef **pathDef) 57 { 58 // lock up the globals for the parser... 59 pthread_mutex_lock(&gParserLock); 60 61 // get out a string for the parser to play with. 62 gParserString = strdup(path); 63 if (gParserString == NULL) { 64 pthread_mutex_unlock(&gParserLock); 65 return (FRU_FAILURE); 66 } 67 // save the head pointer for delete. 68 char *delPtr = gParserString; 69 70 // frudebug = 1; 71 72 // set up for return data from lexer. 73 gParserHead = NULL; 74 gParserAnts = NULL; 75 gParserErrno = FRU_SUCCESS; 76 gParserAbs = absolute; 77 *gParserAbs = 0; 78 79 int rc = fruparse(); 80 81 // clean up the string we used for yacc. 82 free(delPtr); 83 gParserString = NULL; 84 85 // frudebug = 0; 86 if (rc != 0) { 87 delete gParserHead; 88 delete gParserAnts; 89 fru_errno_t err = gParserErrno; 90 pthread_mutex_unlock(&gParserLock); 91 return (err); 92 } 93 94 /* if ((gParserHead == NULL) || (gParserAnts == NULL)) { */ 95 /* allow ancestors to be NULL */ 96 /* some elements don't have tagged ancestors */ 97 if (gParserHead == NULL) { 98 delete gParserAnts; 99 pthread_mutex_unlock(&gParserLock); 100 return (FRU_FAILURE); 101 } 102 103 *pathDef = gParserHead; 104 *ancestors = gParserAnts; 105 106 pthread_mutex_unlock(&gParserLock); 107 return (FRU_SUCCESS); 108 } 109