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 (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright 2007 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 /* Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T */ 28 /* All Rights Reserved */ 29 30 /* 31 * Portions of this source code were derived from Berkeley 4.3 BSD 32 * under license from the Regents of the University of California. 33 */ 34 35 #pragma ident "%Z%%M% %I% %E% SMI" 36 37 #include <stdio.h> 38 #include <stdlib.h> 39 #include <string.h> 40 #include <unistd.h> 41 #include <sharefs/share.h> 42 #include "sharetab.h" 43 44 /* 45 * Get an entry from the share table. 46 * There should be at least 4 fields: 47 * 48 * pathname resource fstype options [ description ] 49 * 50 * A fifth field (description) is optional. 51 * 52 * Returns: 53 * > 1 valid entry 54 * = 0 end of file 55 * < 0 error 56 */ 57 int 58 getshare(FILE *fd, share_t **shp) 59 { 60 static char *line = NULL; 61 static share_t *sh = NULL; 62 char *p; 63 char *lasts; 64 char *w = " \t"; 65 66 if (line == NULL) { 67 line = (char *)malloc(MAXBUFSIZE+1); 68 if (line == NULL) 69 return (-1); 70 } 71 if (sh == NULL) { 72 sh = (share_t *)malloc(sizeof (*sh)); 73 if (sh == NULL) 74 return (-1); 75 } 76 77 p = fgets(line, MAXBUFSIZE, fd); 78 if (p == NULL) 79 return (0); 80 line[strlen(line) - 1] = '\0'; 81 82 sh->sh_path = (char *)strtok_r(p, w, &lasts); 83 if (sh->sh_path == NULL) 84 return (-3); 85 sh->sh_res = (char *)strtok_r(NULL, w, &lasts); 86 if (sh->sh_res == NULL) 87 return (-3); 88 sh->sh_fstype = (char *)strtok_r(NULL, w, &lasts); 89 if (sh->sh_fstype == NULL) 90 return (-3); 91 sh->sh_opts = (char *)strtok_r(NULL, w, &lasts); 92 if (sh->sh_opts == NULL) 93 return (-3); 94 sh->sh_descr = (char *)strtok_r(NULL, "", &lasts); 95 if (sh->sh_descr == NULL) 96 sh->sh_descr = ""; 97 98 *shp = sh; 99 return (1); 100 } 101 102 share_t * 103 sharedup(share_t *sh) 104 { 105 share_t *nsh; 106 107 nsh = (share_t *)calloc(1, sizeof (*nsh)); 108 if (nsh == NULL) 109 return (NULL); 110 111 if (sh->sh_path) { 112 nsh->sh_path = strdup(sh->sh_path); 113 if (nsh->sh_path == NULL) 114 goto alloc_failed; 115 } 116 117 if (sh->sh_res) { 118 nsh->sh_res = strdup(sh->sh_res); 119 if (nsh->sh_res == NULL) 120 goto alloc_failed; 121 } 122 if (sh->sh_fstype) { 123 nsh->sh_fstype = strdup(sh->sh_fstype); 124 if (nsh->sh_fstype == NULL) 125 goto alloc_failed; 126 } 127 if (sh->sh_opts) { 128 nsh->sh_opts = strdup(sh->sh_opts); 129 if (nsh->sh_opts == NULL) 130 goto alloc_failed; 131 } 132 if (sh->sh_descr) { 133 nsh->sh_descr = strdup(sh->sh_descr); 134 if (nsh->sh_descr == NULL) 135 goto alloc_failed; 136 } 137 return (nsh); 138 139 alloc_failed: 140 sharefree(nsh); 141 return (NULL); 142 } 143 144 void 145 sharefree(share_t *sh) 146 { 147 if (sh->sh_path != NULL) 148 free(sh->sh_path); 149 if (sh->sh_res != NULL) 150 free(sh->sh_res); 151 if (sh->sh_fstype != NULL) 152 free(sh->sh_fstype); 153 if (sh->sh_opts != NULL) 154 free(sh->sh_opts); 155 if (sh->sh_descr != NULL) 156 free(sh->sh_descr); 157 free(sh); 158 } 159 160 /* 161 * Return the value after "=" for option "opt" 162 * in option string "optlist". Caller must 163 * free returned value. 164 */ 165 char * 166 getshareopt(char *optlist, char *opt) 167 { 168 char *p, *pe; 169 char *b; 170 char *bb; 171 char *lasts; 172 char *val = NULL; 173 174 b = bb = strdup(optlist); 175 if (b == NULL) 176 return (NULL); 177 178 while (p = (char *)strtok_r(b, ",", &lasts)) { 179 b = NULL; 180 if (pe = strchr(p, '=')) { 181 *pe = '\0'; 182 if (strcmp(opt, p) == 0) { 183 val = strdup(pe + 1); 184 goto done; 185 } 186 } 187 if (strcmp(opt, p) == 0) { 188 val = strdup(""); 189 goto done; 190 } 191 } 192 done: 193 free(bb); 194 return (val); 195 } 196