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 * Copyright 2007 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #pragma ident "%Z%%M% %I% %E% SMI" 27 28 /* 29 * smbfs umount 30 */ 31 32 #include <stdio.h> 33 #include <stdlib.h> 34 #include <string.h> 35 #include <stdarg.h> 36 #include <signal.h> 37 #include <unistd.h> 38 #include <kstat.h> 39 #include <rpc/rpc.h> 40 #include <sys/mnttab.h> 41 #include <sys/mount.h> 42 #include <sys/mntent.h> 43 #include <errno.h> 44 #include <locale.h> 45 #include <fslib.h> 46 #include <priv.h> 47 48 #define RET_OK 0 49 #define RET_ERR 32 50 51 static void pr_err(const char *fmt, ...); 52 static void usage(); 53 static int smbfs_unmount(char *, int); 54 static struct extmnttab *mnttab_find(); 55 56 static char *myname; 57 static char typename[64]; 58 59 int 60 main(int argc, char *argv[]) 61 { 62 extern int optind; 63 int c; 64 int umnt_flag = 0; 65 66 (void) setlocale(LC_ALL, ""); 67 68 #if !defined(TEXT_DOMAIN) 69 #define TEXT_DOMAIN "SYS_TEST" 70 #endif 71 (void) textdomain(TEXT_DOMAIN); 72 73 myname = strrchr(argv[0], '/'); 74 myname = myname ? myname+1 : argv[0]; 75 (void) sprintf(typename, "smbfs %s", myname); 76 argv[0] = typename; 77 78 /* 79 * Set options 80 */ 81 while ((c = getopt(argc, argv, "f")) != EOF) { 82 switch (c) { 83 case 'f': 84 umnt_flag |= MS_FORCE; /* forced unmount is desired */ 85 break; 86 default: 87 usage(); 88 exit(RET_ERR); 89 } 90 } 91 if (argc - optind != 1) { 92 usage(); 93 exit(RET_ERR); 94 } 95 96 return (smbfs_unmount(argv[optind], umnt_flag)); 97 } 98 99 static void 100 pr_err(const char *fmt, ...) 101 { 102 va_list ap; 103 104 va_start(ap, fmt); 105 (void) fprintf(stderr, "%s: ", typename); 106 (void) vfprintf(stderr, fmt, ap); 107 (void) fflush(stderr); 108 va_end(ap); 109 } 110 111 static void 112 usage() 113 { 114 (void) fprintf(stderr, 115 gettext("Usage: smbfs umount [-o opts] {//server/share | dir}\n")); 116 exit(RET_ERR); 117 } 118 119 static int 120 smbfs_unmount(char *pathname, int umnt_flag) 121 { 122 struct extmnttab *mntp; 123 124 mntp = mnttab_find(pathname); 125 if (mntp) { 126 pathname = mntp->mnt_mountp; 127 } 128 129 if (umount2(pathname, umnt_flag) < 0) { 130 pr_err(gettext("%s: %s\n"), pathname, strerror(errno)); 131 return (RET_ERR); 132 } 133 134 return (RET_OK); 135 } 136 137 /* 138 * Find the mnttab entry that corresponds to "name". 139 * We're not sure what the name represents: either 140 * a mountpoint name, or a special name (server:/path). 141 * Return the last entry in the file that matches. 142 */ 143 static struct extmnttab * 144 mnttab_find(dirname) 145 char *dirname; 146 { 147 FILE *fp; 148 struct extmnttab mnt; 149 struct extmnttab *res = NULL; 150 151 fp = fopen(MNTTAB, "r"); 152 if (fp == NULL) { 153 pr_err("%s: %s\n", MNTTAB, strerror(errno)); 154 return (NULL); 155 } 156 while (getextmntent(fp, &mnt, sizeof (struct extmnttab)) == 0) { 157 if (strcmp(mnt.mnt_mountp, dirname) == 0 || 158 strcmp(mnt.mnt_special, dirname) == 0) { 159 if (res) 160 fsfreemnttab(res); 161 res = fsdupmnttab(&mnt); 162 } 163 } 164 165 fclose(fp); 166 return (res); 167 } 168