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- /*-
- * Copyright (c) 1980, 1989 The Regents of the University of California.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by the University of
- * California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
- #ifndef lint
- char copyright[] =
- "@(#) Copyright (c) 1980, 1989 The Regents of the University of California.\n\
- All rights reserved.\n";
- #endif /* not lint */
-
- #ifndef lint
- static char sccsid[] = "@(#)umount.c 5.16 (Berkeley) 6/3/91";
- #endif /* not lint */
-
- #include <sys/param.h>
- #include <sys/stat.h>
- #include <sys/mount.h>
-
- #ifdef NFS
- #include <sys/time.h>
- #include <sys/socket.h>
- #include <sys/socketvar.h>
- #include <netdb.h>
- #include <rpc/rpc.h>
- #include <rpc/pmap_clnt.h>
- #include <rpc/pmap_prot.h>
- #include <nfs/rpcv2.h>
- #endif
-
- #include <fstab.h>
- #include <stdio.h>
- #include <string.h>
-
- #ifdef NFS
- int xdr_dir();
- char *nfshost;
- #endif
-
- int vflag, all, errs, fake;
- int fflag = MNT_NOFORCE;
- char *getmntname();
-
- #define MNTON 1
- #define MNTFROM 2
- #define MNTTYPE 3
-
- int *typelist, *maketypelist();
-
- main(argc, argv)
- int argc;
- char **argv;
- {
- extern char *optarg;
- extern int optind;
- int ch;
-
- sync();
- while ((ch = getopt(argc, argv, "afFh:t:v")) != EOF)
- switch((char)ch) {
- case 'v':
- vflag++;
- break;
- case 'f':
- fflag = MNT_FORCE;
- break;
- case 'F':
- fake++;
- break;
- case 'a':
- all++;
- break;
- case 't':
- typelist = maketypelist(optarg);
- break;
- #ifdef NFS
- case 'h':
- /* -h flag implies -a, and "-t nfs" if no -t flag */
- nfshost = optarg;
- all++;
- if (typelist == NULL)
- typelist = maketypelist("nfs");
- break;
- #endif /* NFS */
- case '?':
- default:
- usage();
- /* NOTREACHED */
- }
- argc -= optind;
- argv += optind;
-
- if (argc == 0 && !all)
- usage();
- if (all) {
- if (argc > 0)
- usage();
- if (setfsent() == 0)
- perror(FSTAB), exit(1);
- umountall(typelist);
- exit(0);
- } else
- setfsent();
- while (argc > 0) {
- if (umountfs(*argv++, 0) == 0)
- errs++;
- argc--;
- }
- exit(errs);
- }
-
- usage()
- {
- fprintf(stderr,
- "%s\n%s\n",
- "Usage: umount [-fv] special | node",
- #ifndef NFS
- " or umount -a[fv] [-t fstypelist]"
- #else
- " or umount -a[fv] [-h host] [-t fstypelist]"
- #endif
- );
- exit(1);
- }
-
- umountall(typelist)
- char **typelist;
- {
- register struct fstab *fs;
- struct fstab *allocfsent();
-
- if ((fs = getfsent()) == (struct fstab *)0)
- return;
- fs = allocfsent(fs);
- umountall(typelist);
- if (strcmp(fs->fs_file, "/") == 0) {
- freefsent(fs);
- return;
- }
- if (strcmp(fs->fs_type, FSTAB_RW) &&
- strcmp(fs->fs_type, FSTAB_RO) &&
- strcmp(fs->fs_type, FSTAB_RQ)) {
- freefsent(fs);
- return;
- }
- (void) umountfs(fs->fs_file, typelist);
- freefsent(fs);
- }
-
- struct fstab *
- allocfsent(fs)
- register struct fstab *fs;
- {
- register struct fstab *new;
- register char *cp;
-
- new = (struct fstab *)malloc((unsigned)sizeof (*fs));
- cp = (char *)malloc((unsigned)strlen(fs->fs_file) + 1);
- strcpy(cp, fs->fs_file);
- new->fs_file = cp;
- cp = (char *)malloc((unsigned)strlen(fs->fs_type) + 1);
- strcpy(cp, fs->fs_type);
- new->fs_type = cp;
- cp = (char *)malloc((unsigned)strlen(fs->fs_spec) + 1);
- strcpy(cp, fs->fs_spec);
- new->fs_spec = cp;
- new->fs_passno = fs->fs_passno;
- new->fs_freq = fs->fs_freq;
- return (new);
- }
-
- freefsent(fs)
- register struct fstab *fs;
- {
-
- if (fs->fs_file)
- free(fs->fs_file);
- if (fs->fs_spec)
- free(fs->fs_spec);
- if (fs->fs_type)
- free(fs->fs_type);
- free((char *)fs);
- }
-
- umountfs(name, typelist)
- char *name;
- int *typelist;
- {
- char *mntpt;
- struct stat stbuf;
- int type;
- #ifdef NFS
- register CLIENT *clp;
- struct hostent *hp = 0;
- struct sockaddr_in saddr;
- struct timeval pertry, try;
- enum clnt_stat clnt_stat;
- int so = RPC_ANYSOCK;
- char *hostp, *delimp;
- #endif /* NFS */
-
- if (stat(name, &stbuf) < 0) {
- if (getmntname(name, MNTFROM, &type) != 0)
- mntpt = name;
- else if ((mntpt = getmntname(name, MNTON, &type)) == 0) {
- fprintf(stderr, "%s: not currently mounted\n", name);
- return (0);
- }
- } else if ((stbuf.st_mode & S_IFMT) == S_IFBLK) {
- if ((mntpt = getmntname(name, MNTON, &type)) == 0) {
- fprintf(stderr, "%s: not currently mounted\n", name);
- return (0);
- }
- } else if ((stbuf.st_mode & S_IFMT) == S_IFDIR) {
- mntpt = name;
- if (getmntname(mntpt, MNTFROM, &type) == 0) {
- fprintf(stderr, "%s: not currently mounted\n", name);
- return (0);
- }
- } else {
- fprintf(stderr, "%s: not a directory or special device\n",
- name);
- return (0);
- }
-
- if (badtype(type, typelist))
- return(1);
- #ifdef NFS
- if ((delimp = index(name, '@')) != NULL) {
- hostp = delimp + 1;
- *delimp = '\0';
- hp = gethostbyname(hostp);
- *delimp = '@';
- } else if ((delimp = index(name, ':')) != NULL) {
- *delimp = '\0';
- hostp = name;
- hp = gethostbyname(hostp);
- name = delimp+1;
- *delimp = ':';
- }
-
- if (!namematch(hp, nfshost))
- return(1);
- #endif /* NFS */
- if (!fake && unmount(mntpt, fflag) < 0) {
- perror(mntpt);
- return (0);
- }
- if (vflag)
- fprintf(stderr, "%s: Unmounted from %s\n", name, mntpt);
-
- #ifdef NFS
- if (!fake && hp != NULL && (fflag & MNT_FORCE) == 0) {
- *delimp = '\0';
- bcopy(hp->h_addr,(caddr_t)&saddr.sin_addr,hp->h_length);
- saddr.sin_family = AF_INET;
- saddr.sin_port = 0;
- pertry.tv_sec = 3;
- pertry.tv_usec = 0;
- if ((clp = clntudp_create(&saddr, RPCPROG_MNT, RPCMNT_VER1,
- pertry, &so)) == NULL) {
- clnt_pcreateerror("Cannot MNT PRC");
- return (1);
- }
- clp->cl_auth = authunix_create_default();
- try.tv_sec = 20;
- try.tv_usec = 0;
- clnt_stat = clnt_call(clp, RPCMNT_UMOUNT, xdr_dir, name,
- xdr_void, (caddr_t)0, try);
- if (clnt_stat != RPC_SUCCESS) {
- clnt_perror(clp, "Bad MNT RPC");
- return (1);
- }
- auth_destroy(clp->cl_auth);
- clnt_destroy(clp);
- }
- #endif /* NFS */
- return (1);
- }
-
- char *
- getmntname(name, what, type)
- char *name;
- int what;
- int *type;
- {
- int mntsize, i;
- struct statfs *mntbuf;
-
- if ((mntsize = getmntinfo(&mntbuf, MNT_NOWAIT)) == 0) {
- perror("umount");
- return (0);
- }
- for (i = 0; i < mntsize; i++) {
- if (what == MNTON && !strcmp(mntbuf[i].f_mntfromname, name)) {
- if (type)
- *type = mntbuf[i].f_type;
- return (mntbuf[i].f_mntonname);
- }
- if (what == MNTFROM && !strcmp(mntbuf[i].f_mntonname, name)) {
- if (type)
- *type = mntbuf[i].f_type;
- return (mntbuf[i].f_mntfromname);
- }
- }
- return (0);
- }
-
- static int skipvfs;
-
- badtype(type, typelist)
- int type;
- int *typelist;
- {
- if (typelist == 0)
- return(0);
- while (*typelist) {
- if (type == *typelist)
- return(skipvfs);
- typelist++;
- }
- return(!skipvfs);
- }
-
- int *
- maketypelist(fslist)
- char *fslist;
- {
- register char *nextcp;
- register int *av, i;
-
- if (fslist == NULL)
- return(NULL);
- if (fslist[0] == 'n' && fslist[1] == 'o') {
- fslist += 2;
- skipvfs = 1;
- } else
- skipvfs = 0;
- for (i = 0, nextcp = fslist; *nextcp; nextcp++)
- if (*nextcp == ',')
- i++;
- av = (int *)malloc((i+2) * sizeof(int));
- if (av == NULL)
- return(NULL);
- for (i = 0; fslist; fslist = nextcp) {
- if (nextcp = index(fslist, ','))
- *nextcp++ = '\0';
- if (strcmp(fslist, "ufs") == 0)
- av[i++] = MOUNT_UFS;
- else if (strcmp(fslist, "nfs") == 0)
- av[i++] = MOUNT_NFS;
- else if (strcmp(fslist, "mfs") == 0)
- av[i++] = MOUNT_MFS;
- else if (strcmp(fslist, "pc") == 0)
- av[i++] = MOUNT_PC;
- }
- av[i++] = 0;
- return(av);
- }
-
- #ifdef NFS
- namematch(hp, nfshost)
- struct hostent *hp;
- char *nfshost;
- {
- register char *cp;
- register char **np;
-
- if (hp == NULL || nfshost == NULL)
- return(1);
- if (strcasecmp(nfshost, hp->h_name) == 0)
- return(1);
- if (cp = index(hp->h_name, '.')) {
- *cp = '\0';
- if (strcasecmp(nfshost, hp->h_name) == 0)
- return(1);
- }
- for (np = hp->h_aliases; *np; np++) {
- if (strcasecmp(nfshost, *np) == 0)
- return(1);
- if (cp = index(*np, '.')) {
- *cp = '\0';
- if (strcasecmp(nfshost, *np) == 0)
- return(1);
- }
- }
- return(0);
- }
-
- /*
- * xdr routines for mount rpc's
- */
- xdr_dir(xdrsp, dirp)
- XDR *xdrsp;
- char *dirp;
- {
- return (xdr_string(xdrsp, &dirp, RPCMNT_PATHLEN));
- }
- #endif /* NFS */
-