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 2015 Nexenta Systems, Inc. All rights reserved. 24 */ 25 26 /* 27 * Copyright 2007 Sun Microsystems, Inc. All rights reserved. 28 * Use is subject to license terms. 29 */ 30 31 /* Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T */ 32 /* All Rights Reserved */ 33 34 /* 35 * Portions of this source code were derived from Berkeley 4.3 BSD 36 * under license from the Regents of the University of California. 37 */ 38 39 #include <stdio.h> 40 #include <stdlib.h> 41 #include <string.h> 42 #include <unistd.h> 43 #include <sharefs/share.h> 44 #include "sharetab.h" 45 46 /* 47 * Get an entry from the share table. 48 * There should be at least 4 fields: 49 * 50 * pathname resource fstype options [ description ] 51 * 52 * A fifth field (description) is optional. 53 * 54 * Returns: 55 * > 1 valid entry 56 * = 0 end of file 57 * < 0 error 58 */ 59 int 60 getshare(FILE *fd, share_t **shp) 61 { 62 static char *line = NULL; 63 static share_t *sh = NULL; 64 char *p; 65 char *lasts; 66 char *w = " \t"; 67 68 if (line == NULL) { 69 line = (char *)malloc(MAXBUFSIZE+1); 70 if (line == NULL) 71 return (-1); 72 } 73 if (sh == NULL) { 74 sh = (share_t *)malloc(sizeof (*sh)); 75 if (sh == NULL) 76 return (-1); 77 } 78 79 p = fgets(line, MAXBUFSIZE, fd); 80 if (p == NULL) 81 return (0); 82 line[strlen(line) - 1] = '\0'; 83 84 sh->sh_path = (char *)strtok_r(p, w, &lasts); 85 if (sh->sh_path == NULL) 86 return (-3); 87 sh->sh_res = (char *)strtok_r(NULL, w, &lasts); 88 if (sh->sh_res == NULL) 89 return (-3); 90 sh->sh_fstype = (char *)strtok_r(NULL, w, &lasts); 91 if (sh->sh_fstype == NULL) 92 return (-3); 93 sh->sh_opts = (char *)strtok_r(NULL, w, &lasts); 94 if (sh->sh_opts == NULL) 95 return (-3); 96 sh->sh_descr = (char *)strtok_r(NULL, "", &lasts); 97 if (sh->sh_descr == NULL) 98 sh->sh_descr = ""; 99 100 *shp = sh; 101 return (1); 102 } 103 104 share_t * 105 sharedup(share_t *sh) 106 { 107 share_t *nsh; 108 109 nsh = (share_t *)calloc(1, sizeof (*nsh)); 110 if (nsh == NULL) 111 return (NULL); 112 113 if (sh->sh_path) { 114 nsh->sh_path = strdup(sh->sh_path); 115 if (nsh->sh_path == NULL) 116 goto alloc_failed; 117 } 118 119 if (sh->sh_res) { 120 nsh->sh_res = strdup(sh->sh_res); 121 if (nsh->sh_res == NULL) 122 goto alloc_failed; 123 } 124 if (sh->sh_fstype) { 125 nsh->sh_fstype = strdup(sh->sh_fstype); 126 if (nsh->sh_fstype == NULL) 127 goto alloc_failed; 128 } 129 if (sh->sh_opts) { 130 nsh->sh_opts = strdup(sh->sh_opts); 131 if (nsh->sh_opts == NULL) 132 goto alloc_failed; 133 } 134 if (sh->sh_descr) { 135 nsh->sh_descr = strdup(sh->sh_descr); 136 if (nsh->sh_descr == NULL) 137 goto alloc_failed; 138 } 139 return (nsh); 140 141 alloc_failed: 142 sharefree(nsh); 143 return (NULL); 144 } 145 146 void 147 sharefree(share_t *sh) 148 { 149 if (sh->sh_path != NULL) 150 free(sh->sh_path); 151 if (sh->sh_res != NULL) 152 free(sh->sh_res); 153 if (sh->sh_fstype != NULL) 154 free(sh->sh_fstype); 155 if (sh->sh_opts != NULL) 156 free(sh->sh_opts); 157 if (sh->sh_descr != NULL) 158 free(sh->sh_descr); 159 free(sh); 160 } 161 162 /* 163 * Return the value after "=" for option "opt" 164 * in option string "optlist". Caller must 165 * free returned value. 166 */ 167 char * 168 getshareopt(char *optlist, char *opt) 169 { 170 char *p, *pe; 171 char *b; 172 char *bb; 173 char *lasts; 174 char *val = NULL; 175 176 b = bb = strdup(optlist); 177 if (b == NULL) 178 return (NULL); 179 180 while ((p = strtok_r(b, ",", &lasts)) != NULL) { 181 b = NULL; 182 if ((pe = strchr(p, '=')) != NULL) { 183 *pe = '\0'; 184 if (strcmp(opt, p) == 0) { 185 val = strdup(pe + 1); 186 goto done; 187 } 188 } 189 if (strcmp(opt, p) == 0) { 190 val = strdup(""); 191 goto done; 192 } 193 } 194 done: 195 free(bb); 196 return (val); 197 } 198