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
fru_field_parser(const char * path,Ancestor ** ancestors,int * absolute,PathDef ** pathDef)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