2 * Copyright (c) 1989, 1993
3 * The Regents of the University of California. All rights reserved.
5 * This code is derived from software contributed to Berkeley by
6 * Herb Hasler and Rick Macklem at The University of Guelph.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. All advertising materials mentioning features or use of this software
17 * must display the following acknowledgement:
18 * This product includes software developed by the University of
19 * California, Berkeley and its contributors.
20 * 4. Neither the name of the University nor the names of its contributors
21 * may be used to endorse or promote products derived from this software
22 * without specific prior written permission.
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36 * @(#) Copyright (c) 1989, 1993 The Regents of the University of California. All rights reserved.
37 * @(#)mountd.c 8.15 (Berkeley) 5/1/95
38 * $FreeBSD: src/sbin/mountd/mountd.c,v 1.39.2.5 2002/09/13 15:57:43 joerg Exp $
39 * $DragonFly: src/sbin/mountd/mountd.c,v 1.8 2005/11/06 12:43:47 swildner Exp $
42 #include <sys/param.h>
43 #include <sys/mount.h>
45 #include <sys/syslog.h>
46 #include <sys/sysctl.h>
49 #include <rpc/pmap_clnt.h>
50 #include <vfs/nfs/rpcv2.h>
51 #include <vfs/nfs/nfsproto.h>
52 #include <vfs/nfs/nfs.h>
53 #include <vfs/ufs/ufsmount.h>
54 #include <vfs/msdosfs/msdosfsmount.h>
55 #include <vfs/ntfs/ntfsmount.h>
56 #include <vfs/isofs/cd9660/cd9660_mount.h> /* XXX need isofs in include */
58 #include <arpa/inet.h>
71 #include "pathnames.h"
78 * Structures for keeping the mount list and export list
81 struct mountlist *ml_next;
82 char ml_host[RPCMNT_NAMELEN+1];
83 char ml_dirp[RPCMNT_PATHLEN+1];
87 struct dirlist *dp_left;
88 struct dirlist *dp_right;
90 struct hostlist *dp_hosts; /* List of hosts this dir exported to */
91 char dp_dirp[1]; /* Actually malloc'd to size of dir */
95 #define DP_HOSTSET 0x2
99 struct exportlist *ex_next;
100 struct dirlist *ex_dirl;
101 struct dirlist *ex_defdir;
108 #define EX_LINKED 0x1
117 struct hostent *gt_hostent;
118 struct netmsk gt_net;
123 union grouptypes gr_ptr;
124 struct grouplist *gr_next;
130 #define GT_IGNORE 0x5
133 int ht_flag; /* Uses DP_xx bits */
134 struct grouplist *ht_grp;
135 struct hostlist *ht_next;
145 char *add_expdir(struct dirlist **, char *, int);
146 void add_dlist(struct dirlist **, struct dirlist *,
147 struct grouplist *, int);
148 void add_mlist(char *, char *);
149 int check_dirpath(char *);
150 int check_options(struct dirlist *);
151 int chk_host(struct dirlist *, u_int32_t, int *, int *);
152 void del_mlist(char *, char *);
153 struct dirlist *dirp_search(struct dirlist *, char *);
154 int do_mount(struct exportlist *, struct grouplist *, int,
155 struct ucred *, char *, int, struct statfs *);
156 int do_opt(char **, char **, struct exportlist *, struct grouplist *,
157 int *, int *, struct ucred *);
158 struct exportlist *ex_search(fsid_t *);
159 struct exportlist *get_exp(void);
160 void free_dir(struct dirlist *);
161 void free_exp(struct exportlist *);
162 void free_grp(struct grouplist *);
163 void free_host(struct hostlist *);
164 void get_exportlist(void);
165 int get_host(char *, struct grouplist *, struct grouplist *);
167 struct hostlist *get_ht(void);
169 void get_mountlist(void);
170 int get_net(char *, struct netmsk *, int);
171 void getexp_err(struct exportlist *, struct grouplist *);
172 struct grouplist *get_grp(void);
173 void hang_dirp(struct dirlist *, struct grouplist *,
174 struct exportlist *, int);
175 void mntsrv(struct svc_req *, SVCXPRT *);
176 void nextfield(char **, char **);
177 void out_of_mem(void);
178 void parsecred(char *, struct ucred *);
179 int put_exlist(struct dirlist *, XDR *, struct dirlist *, int *);
180 int scan_tree(struct dirlist *, u_int32_t);
181 static void usage(void);
182 int xdr_dir(XDR *, char *);
183 int xdr_explist(XDR *, caddr_t);
184 int xdr_fhs(XDR *, caddr_t);
185 int xdr_mlist(XDR *, caddr_t);
187 struct exportlist *exphead;
188 struct mountlist *mlhead;
189 struct grouplist *grphead;
190 char exname[MAXPATHLEN];
191 struct ucred def_anon = {
198 int resvport_only = 1;
203 #define OP_MAPROOT 0x01
204 #define OP_MAPALL 0x02
208 #define OP_ALLDIRS 0x40
209 /* 0x80 is OP_HAVEMASK in FreeBSD 5+ */
210 #define OP_QUIET 0x100
214 void SYSLOG(int, const char *, ...);
215 #define syslog SYSLOG
221 * Mountd server for NFS mount protocol as described in:
222 * NFS: Network File System Protocol Specification, RFC1094, Appendix A
223 * The optional arguments are the exports file name
224 * default: _PATH_EXPORTS
225 * and "-n" to allow nonroot mount.
228 main(int argc, char **argv)
230 SVCXPRT *udptransp, *tcptransp;
231 int c, error, mib[3];
234 error = getvfsbyname("nfs", &vfc);
235 if (error && vfsisloadable("nfs")) {
237 err(1, "vfsload(nfs)");
238 endvfsent(); /* flush cache */
239 error = getvfsbyname("nfs", &vfc);
242 errx(1, "NFS support is not available in the running kernel");
244 while ((c = getopt(argc, argv, "2dlnr")) != -1)
256 debug = debug ? 0 : 1;
266 grphead = (struct grouplist *)NULL;
267 exphead = (struct exportlist *)NULL;
268 mlhead = (struct mountlist *)NULL;
270 strncpy(exname, *argv, MAXPATHLEN-1);
271 exname[MAXPATHLEN-1] = '\0';
273 strcpy(exname, _PATH_EXPORTS);
274 openlog("mountd", LOG_PID, LOG_DAEMON);
276 warnx("getting export list");
279 warnx("getting mount list");
285 signal(SIGINT, SIG_IGN);
286 signal(SIGQUIT, SIG_IGN);
288 signal(SIGHUP, (void (*)(int)) get_exportlist);
289 { FILE *pidfile = fopen(_PATH_MOUNTDPID, "w");
290 if (pidfile != NULL) {
291 fprintf(pidfile, "%d\n", getpid());
295 if (!resvport_only) {
297 mib[1] = vfc.vfc_typenum;
298 mib[2] = NFS_NFSPRIVPORT;
299 if (sysctl(mib, 3, NULL, NULL, &resvport_only,
300 sizeof(resvport_only)) != 0 && errno != ENOENT) {
301 syslog(LOG_ERR, "sysctl: %m");
305 if ((udptransp = svcudp_create(RPC_ANYSOCK)) == NULL ||
306 (tcptransp = svctcp_create(RPC_ANYSOCK, 0, 0)) == NULL) {
307 syslog(LOG_ERR, "can't create socket");
310 pmap_unset(RPCPROG_MNT, 1);
311 pmap_unset(RPCPROG_MNT, 3);
313 if (!svc_register(udptransp, RPCPROG_MNT, 3, mntsrv, IPPROTO_UDP) ||
314 !svc_register(tcptransp, RPCPROG_MNT, 3, mntsrv, IPPROTO_TCP)) {
315 syslog(LOG_ERR, "can't register mount");
318 if (!svc_register(udptransp, RPCPROG_MNT, 1, mntsrv, IPPROTO_UDP) ||
319 !svc_register(tcptransp, RPCPROG_MNT, 1, mntsrv, IPPROTO_TCP)) {
320 syslog(LOG_ERR, "can't register mount");
324 syslog(LOG_ERR, "mountd died");
332 "usage: mountd [-2] [-d] [-l] [-n] [-r] [export_file]\n");
337 * The mount rpc service
340 mntsrv(struct svc_req *rqstp, SVCXPRT *transp)
342 struct exportlist *ep;
348 struct in_addr saddrin;
351 char rpcpath[RPCMNT_PATHLEN + 1], dirpath[MAXPATHLEN];
352 int bad = 0, defset, hostset;
353 sigset_t sighup_mask;
355 sigemptyset(&sighup_mask);
356 sigaddset(&sighup_mask, SIGHUP);
357 saddr = transp->xp_raddr.sin_addr.s_addr;
358 saddrin = transp->xp_raddr.sin_addr;
359 sport = ntohs(transp->xp_raddr.sin_port);
360 hp = (struct hostent *)NULL;
361 switch (rqstp->rq_proc) {
363 if (!svc_sendreply(transp, xdr_void, (caddr_t)NULL))
364 syslog(LOG_ERR, "can't send reply");
367 if (sport >= IPPORT_RESERVED && resvport_only) {
369 "mount request from %s from unprivileged port",
371 svcerr_weakauth(transp);
374 if (!svc_getargs(transp, xdr_dir, rpcpath)) {
375 syslog(LOG_NOTICE, "undecodable mount request from %s",
377 svcerr_decode(transp);
382 * Get the real pathname and make sure it is a directory
383 * or a regular file if the -r option was specified
386 if (realpath(rpcpath, dirpath) == NULL ||
387 stat(dirpath, &stb) < 0 ||
388 (!S_ISDIR(stb.st_mode) &&
389 (dir_only || !S_ISREG(stb.st_mode))) ||
390 statfs(dirpath, &fsb) < 0) {
391 chdir("/"); /* Just in case realpath doesn't */
393 "mount request from %s for non existent path %s",
394 inet_ntoa(saddrin), dirpath);
396 warnx("stat failed on %s", dirpath);
397 bad = ENOENT; /* We will send error reply later */
400 /* Check in the exports list */
401 sigprocmask(SIG_BLOCK, &sighup_mask, NULL);
402 ep = ex_search(&fsb.f_fsid);
403 hostset = defset = 0;
404 if (ep && (chk_host(ep->ex_defdir, saddr, &defset, &hostset) ||
405 ((dp = dirp_search(ep->ex_dirl, dirpath)) &&
406 chk_host(dp, saddr, &defset, &hostset)) ||
407 (defset && scan_tree(ep->ex_defdir, saddr) == 0 &&
408 scan_tree(ep->ex_dirl, saddr) == 0))) {
410 if (!svc_sendreply(transp, xdr_long,
412 syslog(LOG_ERR, "can't send reply");
413 sigprocmask(SIG_UNBLOCK, &sighup_mask, NULL);
416 if (hostset & DP_HOSTSET)
417 fhr.fhr_flag = hostset;
419 fhr.fhr_flag = defset;
420 fhr.fhr_vers = rqstp->rq_vers;
421 /* Get the file handle */
422 memset(&fhr.fhr_fh, 0, sizeof(nfsfh_t));
423 if (getfh(dirpath, (fhandle_t *)&fhr.fhr_fh) < 0) {
425 syslog(LOG_ERR, "can't get fh for %s", dirpath);
426 if (!svc_sendreply(transp, xdr_long,
428 syslog(LOG_ERR, "can't send reply");
429 sigprocmask(SIG_UNBLOCK, &sighup_mask, NULL);
432 if (!svc_sendreply(transp, xdr_fhs, (caddr_t)&fhr))
433 syslog(LOG_ERR, "can't send reply");
435 hp = gethostbyaddr((caddr_t)&saddr,
436 sizeof(saddr), AF_INET);
438 add_mlist(hp->h_name, dirpath);
440 add_mlist(inet_ntoa(saddrin),
443 warnx("mount successful");
446 "mount request succeeded from %s for %s",
447 inet_ntoa(saddrin), dirpath);
451 "mount request denied from %s for %s",
452 inet_ntoa(saddrin), dirpath);
455 if (bad && !svc_sendreply(transp, xdr_long, (caddr_t)&bad))
456 syslog(LOG_ERR, "can't send reply");
457 sigprocmask(SIG_UNBLOCK, &sighup_mask, NULL);
460 if (!svc_sendreply(transp, xdr_mlist, (caddr_t)NULL))
461 syslog(LOG_ERR, "can't send reply");
464 "dump request succeeded from %s",
468 if (sport >= IPPORT_RESERVED && resvport_only) {
470 "umount request from %s from unprivileged port",
472 svcerr_weakauth(transp);
475 if (!svc_getargs(transp, xdr_dir, rpcpath)) {
476 syslog(LOG_NOTICE, "undecodable umount request from %s",
478 svcerr_decode(transp);
481 if (realpath(rpcpath, dirpath) == NULL) {
482 syslog(LOG_NOTICE, "umount request from %s "
483 "for non existent path %s",
484 inet_ntoa(saddrin), dirpath);
486 if (!svc_sendreply(transp, xdr_void, (caddr_t)NULL))
487 syslog(LOG_ERR, "can't send reply");
488 hp = gethostbyaddr((caddr_t)&saddr, sizeof(saddr), AF_INET);
490 del_mlist(hp->h_name, dirpath);
491 del_mlist(inet_ntoa(saddrin), dirpath);
494 "umount request succeeded from %s for %s",
495 inet_ntoa(saddrin), dirpath);
498 if (sport >= IPPORT_RESERVED && resvport_only) {
500 "umountall request from %s from unprivileged port",
502 svcerr_weakauth(transp);
505 if (!svc_sendreply(transp, xdr_void, (caddr_t)NULL))
506 syslog(LOG_ERR, "can't send reply");
507 hp = gethostbyaddr((caddr_t)&saddr, sizeof(saddr), AF_INET);
509 del_mlist(hp->h_name, (char *)NULL);
510 del_mlist(inet_ntoa(saddrin), (char *)NULL);
513 "umountall request succeeded from %s",
517 if (!svc_sendreply(transp, xdr_explist, (caddr_t)NULL))
518 syslog(LOG_ERR, "can't send reply");
521 "export request succeeded from %s",
525 svcerr_noproc(transp);
531 * Xdr conversion for a dirpath string
534 xdr_dir(XDR *xdrsp, char *dirp)
536 return (xdr_string(xdrsp, &dirp, RPCMNT_PATHLEN));
540 * Xdr routine to generate file handle reply
543 xdr_fhs(XDR *xdrsp, caddr_t cp)
545 struct fhreturn *fhrp = (struct fhreturn *)cp;
546 u_long ok = 0, len, auth;
548 if (!xdr_long(xdrsp, &ok))
550 switch (fhrp->fhr_vers) {
552 return (xdr_opaque(xdrsp, (caddr_t)&fhrp->fhr_fh, NFSX_V2FH));
555 if (!xdr_long(xdrsp, &len))
557 if (!xdr_opaque(xdrsp, (caddr_t)&fhrp->fhr_fh, len))
559 if (fhrp->fhr_flag & DP_KERB)
560 auth = RPCAUTH_KERB4;
564 if (!xdr_long(xdrsp, &len))
566 return (xdr_long(xdrsp, &auth));
572 xdr_mlist(XDR *xdrsp, caddr_t cp)
574 struct mountlist *mlp;
581 if (!xdr_bool(xdrsp, &true))
583 strp = &mlp->ml_host[0];
584 if (!xdr_string(xdrsp, &strp, RPCMNT_NAMELEN))
586 strp = &mlp->ml_dirp[0];
587 if (!xdr_string(xdrsp, &strp, RPCMNT_PATHLEN))
591 if (!xdr_bool(xdrsp, &false))
597 * Xdr conversion for export list
600 xdr_explist(XDR *xdrsp, caddr_t cp)
602 struct exportlist *ep;
605 sigset_t sighup_mask;
607 sigemptyset(&sighup_mask);
608 sigaddset(&sighup_mask, SIGHUP);
609 sigprocmask(SIG_BLOCK, &sighup_mask, NULL);
613 if (put_exlist(ep->ex_dirl, xdrsp, ep->ex_defdir, &putdef))
615 if (ep->ex_defdir && putdef == 0 &&
616 put_exlist(ep->ex_defdir, xdrsp, (struct dirlist *)NULL,
621 sigprocmask(SIG_UNBLOCK, &sighup_mask, NULL);
622 if (!xdr_bool(xdrsp, &false))
626 sigprocmask(SIG_UNBLOCK, &sighup_mask, NULL);
631 * Called from xdr_explist() to traverse the tree and export the
635 put_exlist(struct dirlist *dp, XDR *xdrsp, struct dirlist *adp, int *putdefp)
637 struct grouplist *grp;
645 if (put_exlist(dp->dp_left, xdrsp, adp, putdefp))
647 if (!xdr_bool(xdrsp, &true))
650 if (!xdr_string(xdrsp, &strp, RPCMNT_PATHLEN))
652 if (adp && !strcmp(dp->dp_dirp, adp->dp_dirp)) {
656 if ((dp->dp_flag & DP_DEFSET) == 0 &&
657 (gotalldir == 0 || (adp->dp_flag & DP_DEFSET) == 0)) {
661 if (grp->gr_type == GT_HOST) {
662 if (!xdr_bool(xdrsp, &true))
664 strp = grp->gr_ptr.gt_hostent->h_name;
665 if (!xdr_string(xdrsp, &strp,
668 } else if (grp->gr_type == GT_NET) {
669 if (!xdr_bool(xdrsp, &true))
671 strp = grp->gr_ptr.gt_net.nt_name;
672 if (!xdr_string(xdrsp, &strp,
677 if (gotalldir && hp == (struct hostlist *)NULL) {
683 if (!xdr_bool(xdrsp, &false))
685 if (put_exlist(dp->dp_right, xdrsp, adp, putdefp))
691 #define LINESIZ 10240
696 * Get the export list
701 struct exportlist *ep, *ep2;
702 struct grouplist *grp, *tgrp;
703 struct exportlist **epp;
704 struct dirlist *dirhead;
705 struct statfs fsb, *fsp;
708 char *cp, *endcp, *dirp, *hst, *usr, *dom, savedc;
709 int len, has_host, exflags, got_nondir, dirplen, num, i, netgrp;
715 * First, get rid of the old list
723 exphead = (struct exportlist *)NULL;
731 grphead = (struct grouplist *)NULL;
734 * And delete exports that are in the kernel for all local
736 * XXX: Should know how to handle all local exportable file systems
737 * instead of just "ufs".
739 num = getmntinfo(&fsp, MNT_NOWAIT);
740 for (i = 0; i < num; i++) {
745 struct msdosfs_args da;
749 if (!strcmp(fsp->f_fstypename, "mfs") ||
750 !strcmp(fsp->f_fstypename, "ufs") ||
751 !strcmp(fsp->f_fstypename, "msdos") ||
752 !strcmp(fsp->f_fstypename, "ntfs") ||
753 !strcmp(fsp->f_fstypename, "cd9660")) {
754 targs.ua.fspec = NULL;
755 targs.ua.export.ex_flags = MNT_DELEXPORT;
756 if (mount(fsp->f_fstypename, fsp->f_mntonname,
757 fsp->f_flags | MNT_UPDATE,
758 (caddr_t)&targs) < 0)
759 syslog(LOG_ERR, "can't delete exports for %s",
766 * Read in the exports file and build the list, calling
767 * mount() as we go along to push the export rules into the kernel.
769 if ((exp_file = fopen(exname, "r")) == NULL) {
770 syslog(LOG_ERR, "can't open %s", exname);
773 dirhead = (struct dirlist *)NULL;
776 warnx("got line %s", line);
778 nextfield(&cp, &endcp);
787 exflags = MNT_EXPORTED;
790 ep = (struct exportlist *)NULL;
793 * Create new exports list entry
796 tgrp = grp = get_grp();
798 if (len > RPCMNT_NAMELEN) {
799 getexp_err(ep, tgrp);
803 if (ep == (struct exportlist *)NULL) {
804 getexp_err(ep, tgrp);
808 warnx("doing opt %s", cp);
810 if (do_opt(&cp, &endcp, ep, grp, &has_host,
812 getexp_err(ep, tgrp);
815 } else if (*cp == '/') {
818 if (check_dirpath(cp) &&
819 statfs(cp, &fsb) >= 0) {
821 syslog(LOG_ERR, "dirs must be first");
822 getexp_err(ep, tgrp);
826 if (ep->ex_fs.val[0] != fsb.f_fsid.val[0] ||
827 ep->ex_fs.val[1] != fsb.f_fsid.val[1]) {
828 getexp_err(ep, tgrp);
833 * See if this directory is already
836 ep = ex_search(&fsb.f_fsid);
837 if (ep == (struct exportlist *)NULL) {
839 ep->ex_fs = fsb.f_fsid;
840 ep->ex_fsdir = (char *)
841 malloc(strlen(fsb.f_mntonname) + 1);
848 warnx("making new ep fs=0x%x,0x%x",
852 warnx("found ep fs=0x%x,0x%x",
858 * Add dirpath to export mount point.
860 dirp = add_expdir(&dirhead, cp, len);
863 getexp_err(ep, tgrp);
871 if (ep == (struct exportlist *)NULL) {
872 getexp_err(ep, tgrp);
877 * Get the host or netgroup.
880 netgrp = getnetgrent(&hst, &usr, &dom);
883 grp->gr_next = get_grp();
889 "null hostname in netgroup %s, skipping", cp);
890 grp->gr_type = GT_IGNORE;
891 } else if (get_host(hst, grp, tgrp)) {
893 "bad host %s in netgroup %s, skipping", hst, cp);
894 grp->gr_type = GT_IGNORE;
896 } else if (get_host(cp, grp, tgrp)) {
897 syslog(LOG_ERR, "bad host %s, skipping", cp);
898 grp->gr_type = GT_IGNORE;
901 } while (netgrp && getnetgrent(&hst, &usr, &dom));
906 nextfield(&cp, &endcp);
909 if (check_options(dirhead)) {
910 getexp_err(ep, tgrp);
914 grp->gr_type = GT_HOST;
916 warnx("adding a default entry");
917 /* add a default group and make the grp list NULL */
918 hpe = (struct hostent *)malloc(sizeof(struct hostent));
919 if (hpe == (struct hostent *)NULL)
921 hpe->h_name = strdup("Default");
922 hpe->h_addrtype = AF_INET;
923 hpe->h_length = sizeof (u_int32_t);
924 hpe->h_addr_list = (char **)NULL;
925 grp->gr_ptr.gt_hostent = hpe;
928 * Don't allow a network export coincide with a list of
929 * host(s) on the same line.
931 } else if ((opt_flags & OP_NET) && tgrp->gr_next) {
932 getexp_err(ep, tgrp);
936 * If an export list was specified on this line, make sure
937 * that we have at least one valid entry, otherwise skip it.
941 while (grp && grp->gr_type == GT_IGNORE)
944 getexp_err(ep, tgrp);
950 * Loop through hosts, pushing the exports into the kernel.
951 * After loop, tgrp points to the start of the list and
952 * grp points to the last entry in the list.
956 if (do_mount(ep, grp, exflags, &anon, dirp,
958 getexp_err(ep, tgrp);
961 } while (grp->gr_next && (grp = grp->gr_next));
964 * Success. Update the data structures.
967 hang_dirp(dirhead, tgrp, ep, opt_flags);
968 grp->gr_next = grphead;
971 hang_dirp(dirhead, (struct grouplist *)NULL, ep,
975 dirhead = (struct dirlist *)NULL;
976 if ((ep->ex_flag & EX_LINKED) == 0) {
981 * Insert in the list in alphabetical order.
983 while (ep2 && strcmp(ep2->ex_fsdir, ep->ex_fsdir) < 0) {
990 ep->ex_flag |= EX_LINKED;
995 dirhead = (struct dirlist *)NULL;
1002 * Allocate an export list element
1007 struct exportlist *ep;
1009 ep = (struct exportlist *)malloc(sizeof (struct exportlist));
1010 if (ep == (struct exportlist *)NULL)
1012 memset(ep, 0, sizeof(struct exportlist));
1017 * Allocate a group list element
1022 struct grouplist *gp;
1024 gp = (struct grouplist *)malloc(sizeof (struct grouplist));
1025 if (gp == (struct grouplist *)NULL)
1027 memset(gp, 0, sizeof(struct grouplist));
1032 * Clean up upon an error in get_exportlist().
1035 getexp_err(struct exportlist *ep, struct grouplist *grp)
1037 struct grouplist *tgrp;
1039 if (!(opt_flags & OP_QUIET))
1040 syslog(LOG_ERR, "bad exports list line %s", line);
1041 if (ep && (ep->ex_flag & EX_LINKED) == 0)
1051 * Search the export list for a matching fs.
1054 ex_search(fsid_t *fsid)
1056 struct exportlist *ep;
1060 if (ep->ex_fs.val[0] == fsid->val[0] &&
1061 ep->ex_fs.val[1] == fsid->val[1])
1069 * Add a directory path to the list.
1072 add_expdir(struct dirlist **dpp, char *cp, int len)
1076 dp = (struct dirlist *)malloc(sizeof (struct dirlist) + len);
1077 if (dp == (struct dirlist *)NULL)
1080 dp->dp_right = (struct dirlist *)NULL;
1082 dp->dp_hosts = (struct hostlist *)NULL;
1083 strcpy(dp->dp_dirp, cp);
1085 return (dp->dp_dirp);
1089 * Hang the dir list element off the dirpath binary tree as required
1090 * and update the entry for host.
1093 hang_dirp(struct dirlist *dp, struct grouplist *grp, struct exportlist *ep,
1096 struct hostlist *hp;
1097 struct dirlist *dp2;
1099 if (flags & OP_ALLDIRS) {
1104 if (grp == (struct grouplist *)NULL) {
1105 ep->ex_defdir->dp_flag |= DP_DEFSET;
1106 if (flags & OP_KERB)
1107 ep->ex_defdir->dp_flag |= DP_KERB;
1108 } else while (grp) {
1110 if (flags & OP_KERB)
1111 hp->ht_flag |= DP_KERB;
1113 hp->ht_next = ep->ex_defdir->dp_hosts;
1114 ep->ex_defdir->dp_hosts = hp;
1120 * Loop through the directories adding them to the tree.
1124 add_dlist(&ep->ex_dirl, dp, grp, flags);
1131 * Traverse the binary tree either updating a node that is already there
1132 * for the new directory or adding the new node.
1135 add_dlist(struct dirlist **dpp, struct dirlist *newdp, struct grouplist *grp,
1139 struct hostlist *hp;
1144 cmp = strcmp(dp->dp_dirp, newdp->dp_dirp);
1146 add_dlist(&dp->dp_left, newdp, grp, flags);
1148 } else if (cmp < 0) {
1149 add_dlist(&dp->dp_right, newdp, grp, flags);
1152 free((caddr_t)newdp);
1155 dp->dp_left = (struct dirlist *)NULL;
1161 * Hang all of the host(s) off of the directory point.
1165 if (flags & OP_KERB)
1166 hp->ht_flag |= DP_KERB;
1168 hp->ht_next = dp->dp_hosts;
1173 dp->dp_flag |= DP_DEFSET;
1174 if (flags & OP_KERB)
1175 dp->dp_flag |= DP_KERB;
1180 * Search for a dirpath on the export point.
1183 dirp_search(struct dirlist *dp, char *dirpath)
1188 cmp = strcmp(dp->dp_dirp, dirpath);
1190 return (dirp_search(dp->dp_left, dirpath));
1192 return (dirp_search(dp->dp_right, dirpath));
1200 * Scan for a host match in a directory tree.
1203 chk_host(struct dirlist *dp, u_int32_t saddr, int *defsetp, int *hostsetp)
1205 struct hostlist *hp;
1206 struct grouplist *grp;
1210 if (dp->dp_flag & DP_DEFSET)
1211 *defsetp = dp->dp_flag;
1215 switch (grp->gr_type) {
1217 addrp = (u_int32_t **)
1218 grp->gr_ptr.gt_hostent->h_addr_list;
1220 if (**addrp == saddr) {
1221 *hostsetp = (hp->ht_flag | DP_HOSTSET);
1228 if ((saddr & grp->gr_ptr.gt_net.nt_mask) ==
1229 grp->gr_ptr.gt_net.nt_net) {
1230 *hostsetp = (hp->ht_flag | DP_HOSTSET);
1242 * Scan tree for a host that matches the address.
1245 scan_tree(struct dirlist *dp, u_int32_t saddr)
1247 int defset, hostset;
1250 if (scan_tree(dp->dp_left, saddr))
1252 if (chk_host(dp, saddr, &defset, &hostset))
1254 if (scan_tree(dp->dp_right, saddr))
1261 * Traverse the dirlist tree and free it up.
1264 free_dir(struct dirlist *dp)
1268 free_dir(dp->dp_left);
1269 free_dir(dp->dp_right);
1270 free_host(dp->dp_hosts);
1276 * Parse the option string and update fields.
1277 * Option arguments may either be -<option>=<value> or
1281 do_opt(char **cpp, char **endcpp, struct exportlist *ep, struct grouplist *grp,
1282 int *has_hostp, int *exflagsp, struct ucred *cr)
1284 char *cpoptarg, *cpoptend;
1285 char *cp, *endcp, *cpopt, savedc, savedc2;
1286 int allflag, usedarg;
1294 while (cpopt && *cpopt) {
1297 if ((cpoptend = strchr(cpopt, ','))) {
1299 if ((cpoptarg = strchr(cpopt, '=')))
1302 if ((cpoptarg = strchr(cpopt, '=')))
1306 nextfield(&cp, &endcp);
1308 if (endcp > cp && *cp != '-') {
1316 if (!strcmp(cpopt, "ro") || !strcmp(cpopt, "o")) {
1317 *exflagsp |= MNT_EXRDONLY;
1318 } else if (cpoptarg && (!strcmp(cpopt, "maproot") ||
1319 !(allflag = strcmp(cpopt, "mapall")) ||
1320 !strcmp(cpopt, "root") || !strcmp(cpopt, "r"))) {
1322 parsecred(cpoptarg, cr);
1324 *exflagsp |= MNT_EXPORTANON;
1325 opt_flags |= OP_MAPALL;
1327 opt_flags |= OP_MAPROOT;
1328 } else if (!strcmp(cpopt, "kerb") || !strcmp(cpopt, "k")) {
1329 *exflagsp |= MNT_EXKERB;
1330 opt_flags |= OP_KERB;
1331 } else if (cpoptarg && (!strcmp(cpopt, "mask") ||
1332 !strcmp(cpopt, "m"))) {
1333 if (get_net(cpoptarg, &grp->gr_ptr.gt_net, 1)) {
1334 syslog(LOG_ERR, "bad mask: %s", cpoptarg);
1338 opt_flags |= OP_MASK;
1339 } else if (cpoptarg && (!strcmp(cpopt, "network") ||
1340 !strcmp(cpopt, "n"))) {
1341 if (grp->gr_type != GT_NULL) {
1342 syslog(LOG_ERR, "network/host conflict");
1344 } else if (get_net(cpoptarg, &grp->gr_ptr.gt_net, 0)) {
1345 syslog(LOG_ERR, "bad net: %s", cpoptarg);
1348 grp->gr_type = GT_NET;
1351 opt_flags |= OP_NET;
1352 } else if (!strcmp(cpopt, "alldirs")) {
1353 opt_flags |= OP_ALLDIRS;
1354 } else if (!strcmp(cpopt, "public")) {
1355 *exflagsp |= MNT_EXPUBLIC;
1356 } else if (!strcmp(cpopt, "webnfs")) {
1357 *exflagsp |= (MNT_EXPUBLIC|MNT_EXRDONLY|MNT_EXPORTANON);
1358 opt_flags |= OP_MAPALL;
1359 } else if (cpoptarg && !strcmp(cpopt, "index")) {
1360 ep->ex_indexfile = strdup(cpoptarg);
1361 } else if (!strcmp(cpopt, "quiet")) {
1362 opt_flags |= OP_QUIET;
1364 syslog(LOG_ERR, "bad opt %s", cpopt);
1383 * Translate a character string to the corresponding list of network
1384 * addresses for a hostname.
1387 get_host(char *cp, struct grouplist *grp, struct grouplist *tgrp)
1389 struct grouplist *checkgrp;
1390 struct hostent *hp, *nhp;
1391 char **addrp, **naddrp;
1392 struct hostent t_host;
1397 if (grp->gr_type != GT_NULL)
1399 if ((hp = gethostbyname(cp)) == NULL) {
1401 saddr = inet_addr(cp);
1403 syslog(LOG_ERR, "inet_addr failed for %s", cp);
1406 if ((hp = gethostbyaddr((caddr_t)&saddr, sizeof (saddr),
1407 AF_INET)) == NULL) {
1410 hp->h_addrtype = AF_INET;
1411 hp->h_length = sizeof (u_int32_t);
1412 hp->h_addr_list = aptr;
1413 aptr[0] = (char *)&saddr;
1414 aptr[1] = (char *)NULL;
1417 syslog(LOG_ERR, "gethostbyname failed for %s", cp);
1422 * Sanity check: make sure we don't already have an entry
1423 * for this host in the grouplist.
1426 while (checkgrp != NULL) {
1427 if (checkgrp->gr_type == GT_HOST &&
1428 checkgrp->gr_ptr.gt_hostent != NULL &&
1429 (!strcmp(checkgrp->gr_ptr.gt_hostent->h_name, hp->h_name)
1430 || *(u_int32_t *)checkgrp->gr_ptr.gt_hostent->h_addr ==
1431 *(u_int32_t *)hp->h_addr)) {
1432 grp->gr_type = GT_IGNORE;
1435 checkgrp = checkgrp->gr_next;
1438 grp->gr_type = GT_HOST;
1439 nhp = grp->gr_ptr.gt_hostent = (struct hostent *)
1440 malloc(sizeof(struct hostent));
1441 if (nhp == (struct hostent *)NULL)
1443 memmove(nhp, hp, sizeof(struct hostent));
1444 i = strlen(hp->h_name)+1;
1445 nhp->h_name = (char *)malloc(i);
1446 if (nhp->h_name == (char *)NULL)
1448 memmove(nhp->h_name, hp->h_name, i);
1449 addrp = hp->h_addr_list;
1453 naddrp = nhp->h_addr_list = (char **)malloc(i*sizeof(char *));
1454 if (naddrp == (char **)NULL)
1456 addrp = hp->h_addr_list;
1458 *naddrp = (char *)malloc(hp->h_length);
1459 if (*naddrp == (char *)NULL)
1461 memmove(*naddrp, *addrp, hp->h_length);
1465 *naddrp = (char *)NULL;
1467 warnx("got host %s", hp->h_name);
1472 * Free up an exports list component
1475 free_exp(struct exportlist *ep)
1478 if (ep->ex_defdir) {
1479 free_host(ep->ex_defdir->dp_hosts);
1480 free((caddr_t)ep->ex_defdir);
1484 if (ep->ex_indexfile)
1485 free(ep->ex_indexfile);
1486 free_dir(ep->ex_dirl);
1494 free_host(struct hostlist *hp)
1496 struct hostlist *hp2;
1508 struct hostlist *hp;
1510 hp = (struct hostlist *)malloc(sizeof (struct hostlist));
1511 if (hp == (struct hostlist *)NULL)
1513 hp->ht_next = (struct hostlist *)NULL;
1519 * Out of memory, fatal
1525 syslog(LOG_ERR, "out of memory");
1530 * Do the mount syscall with the update flag to push the export info into
1534 do_mount(struct exportlist *ep, struct grouplist *grp, int exflags,
1535 struct ucred *anoncrp, char *dirp, int dirplen, struct statfs *fsb)
1542 struct sockaddr_in sin, imask;
1548 struct msdosfs_args da;
1550 struct ntfs_args na;
1555 args.ua.export.ex_flags = exflags;
1556 args.ua.export.ex_anon = *anoncrp;
1557 args.ua.export.ex_indexfile = ep->ex_indexfile;
1558 memset(&sin, 0, sizeof(sin));
1559 memset(&imask, 0, sizeof(imask));
1560 sin.sin_family = AF_INET;
1561 sin.sin_len = sizeof(sin);
1562 imask.sin_family = AF_INET;
1563 imask.sin_len = sizeof(sin);
1564 if (grp->gr_type == GT_HOST)
1565 addrp = (u_int32_t **)grp->gr_ptr.gt_hostent->h_addr_list;
1567 addrp = (u_int32_t **)NULL;
1570 switch (grp->gr_type) {
1573 sin.sin_addr.s_addr = **addrp;
1574 args.ua.export.ex_addrlen = sizeof(sin);
1576 args.ua.export.ex_addrlen = 0;
1577 args.ua.export.ex_addr = (struct sockaddr *)&sin;
1578 args.ua.export.ex_masklen = 0;
1581 if (grp->gr_ptr.gt_net.nt_mask)
1582 imask.sin_addr.s_addr = grp->gr_ptr.gt_net.nt_mask;
1584 net = ntohl(grp->gr_ptr.gt_net.nt_net);
1586 imask.sin_addr.s_addr = inet_addr("255.0.0.0");
1587 else if (IN_CLASSB(net))
1588 imask.sin_addr.s_addr =
1589 inet_addr("255.255.0.0");
1591 imask.sin_addr.s_addr =
1592 inet_addr("255.255.255.0");
1593 grp->gr_ptr.gt_net.nt_mask = imask.sin_addr.s_addr;
1595 sin.sin_addr.s_addr = grp->gr_ptr.gt_net.nt_net;
1596 args.ua.export.ex_addr = (struct sockaddr *)&sin;
1597 args.ua.export.ex_addrlen = sizeof (sin);
1598 args.ua.export.ex_mask = (struct sockaddr *)&imask;
1599 args.ua.export.ex_masklen = sizeof (imask);
1605 syslog(LOG_ERR, "bad grouptype");
1613 * Maybe I should just use the fsb->f_mntonname path instead
1614 * of looping back up the dirp to the mount point??
1615 * Also, needs to know how to export all types of local
1616 * exportable file systems and not just "ufs".
1618 while (mount(fsb->f_fstypename, dirp,
1619 fsb->f_flags | MNT_UPDATE, (caddr_t)&args) < 0) {
1623 cp = dirp + dirplen - 1;
1624 if (opt_flags & OP_QUIET)
1626 if (errno == EPERM) {
1628 "can't change attributes for %s", dirp);
1631 if (opt_flags & OP_ALLDIRS) {
1632 if (errno == EINVAL)
1634 "-alldirs requested but %s is not a filesystem mountpoint",
1638 "could not remount %s: %m",
1642 /* back up over the last component */
1643 while (*cp == '/' && cp > dirp)
1645 while (*(cp - 1) != '/' && cp > dirp)
1649 warnx("mnt unsucc");
1650 syslog(LOG_ERR, "can't export %s", dirp);
1655 /* Check that we're still on the same filesystem. */
1656 if (statfs(dirp, &fsb1) != 0 || bcmp(&fsb1.f_fsid,
1657 &fsb->f_fsid, sizeof(fsb1.f_fsid)) != 0) {
1659 syslog(LOG_ERR, "can't export %s", dirp);
1665 if (*addrp == (u_int32_t *)NULL)
1676 * Translate a net address.
1679 get_net(char *cp, struct netmsk *net, int maskflg)
1683 struct in_addr inetaddr, inetaddr2;
1686 if (isdigit(*cp) && ((netaddr = inet_network(cp)) != -1)) {
1687 inetaddr = inet_makeaddr(netaddr, 0);
1689 * Due to arbitrary subnet masks, you don't know how many
1690 * bits to shift the address to make it into a network,
1691 * however you do know how to make a network address into
1692 * a host with host == 0 and then compare them.
1697 while ((np = getnetent())) {
1698 inetaddr2 = inet_makeaddr(np->n_net, 0);
1699 if (inetaddr2.s_addr == inetaddr.s_addr)
1704 } else if ((np = getnetbyname(cp)) != NULL) {
1705 inetaddr = inet_makeaddr(np->n_net, 0);
1710 net->nt_mask = inetaddr.s_addr;
1715 name = inet_ntoa(inetaddr);
1716 net->nt_name = (char *)malloc(strlen(name) + 1);
1717 if (net->nt_name == (char *)NULL)
1719 strcpy(net->nt_name, name);
1720 net->nt_net = inetaddr.s_addr;
1726 * Parse out the next white space separated field
1729 nextfield(char **cp, char **endcp)
1734 while (*p == ' ' || *p == '\t')
1736 if (*p == '\n' || *p == '\0')
1740 while (*p != ' ' && *p != '\t' && *p != '\n' && *p != '\0')
1747 * Get an exports file line. Skip over blank lines and handle line
1755 int totlen, cont_line;
1758 * Loop around ignoring blank lines and getting all continuation lines.
1763 if (fgets(p, LINESIZ - totlen, exp_file) == NULL)
1769 (*cp == ' ' || *cp == '\t' || *cp == '\n' || *cp == '\\')) {
1782 if (totlen >= LINESIZ) {
1783 syslog(LOG_ERR, "exports line too long");
1788 } while (totlen == 0 || cont_line);
1793 * Parse a description of a credential.
1796 parsecred(char *namelist, struct ucred *cr)
1803 int ngroups, groups[NGROUPS + 1];
1806 * Set up the unprivileged user.
1810 cr->cr_groups[0] = -2;
1813 * Get the user's password table entry.
1815 names = strsep(&namelist, " \t\n");
1816 name = strsep(&names, ":");
1817 if (isdigit(*name) || *name == '-')
1818 pw = getpwuid(atoi(name));
1820 pw = getpwnam(name);
1822 * Credentials specified as those of a user.
1824 if (names == NULL) {
1826 syslog(LOG_ERR, "unknown user: %s", name);
1829 cr->cr_uid = pw->pw_uid;
1830 ngroups = NGROUPS + 1;
1831 if (getgrouplist(pw->pw_name, pw->pw_gid, groups, &ngroups))
1832 syslog(LOG_ERR, "too many groups");
1834 * Convert from int's to gid_t's and compress out duplicate
1836 cr->cr_ngroups = ngroups - 1;
1837 cr->cr_groups[0] = groups[0];
1838 for (cnt = 2; cnt < ngroups; cnt++)
1839 cr->cr_groups[cnt - 1] = groups[cnt];
1843 * Explicit credential specified as a colon separated list:
1847 cr->cr_uid = pw->pw_uid;
1848 else if (isdigit(*name) || *name == '-')
1849 cr->cr_uid = atoi(name);
1851 syslog(LOG_ERR, "unknown user: %s", name);
1855 while (names != NULL && *names != '\0' && cr->cr_ngroups < NGROUPS) {
1856 name = strsep(&names, ":");
1857 if (isdigit(*name) || *name == '-') {
1858 cr->cr_groups[cr->cr_ngroups++] = atoi(name);
1860 if ((gr = getgrnam(name)) == NULL) {
1861 syslog(LOG_ERR, "unknown group: %s", name);
1864 cr->cr_groups[cr->cr_ngroups++] = gr->gr_gid;
1867 if (names != NULL && *names != '\0' && cr->cr_ngroups == NGROUPS)
1868 syslog(LOG_ERR, "too many groups");
1871 #define STRSIZ (RPCMNT_NAMELEN+RPCMNT_PATHLEN+50)
1873 * Routines that maintain the remote mounttab
1878 struct mountlist *mlp, **mlpp;
1879 char *host, *dirp, *cp;
1883 if ((mlfile = fopen(_PATH_RMOUNTLIST, "r")) == NULL) {
1884 if (errno == ENOENT)
1887 syslog(LOG_ERR, "can't open %s", _PATH_RMOUNTLIST);
1892 while (fgets(str, STRSIZ, mlfile) != NULL) {
1894 host = strsep(&cp, " \t\n");
1895 dirp = strsep(&cp, " \t\n");
1896 if (host == NULL || dirp == NULL)
1898 mlp = (struct mountlist *)malloc(sizeof (*mlp));
1899 if (mlp == (struct mountlist *)NULL)
1901 strncpy(mlp->ml_host, host, RPCMNT_NAMELEN);
1902 mlp->ml_host[RPCMNT_NAMELEN] = '\0';
1903 strncpy(mlp->ml_dirp, dirp, RPCMNT_PATHLEN);
1904 mlp->ml_dirp[RPCMNT_PATHLEN] = '\0';
1905 mlp->ml_next = (struct mountlist *)NULL;
1907 mlpp = &mlp->ml_next;
1913 del_mlist(char *hostp, char *dirp)
1915 struct mountlist *mlp, **mlpp;
1916 struct mountlist *mlp2;
1923 if (!strcmp(mlp->ml_host, hostp) &&
1924 (!dirp || !strcmp(mlp->ml_dirp, dirp))) {
1927 *mlpp = mlp = mlp->ml_next;
1928 free((caddr_t)mlp2);
1930 mlpp = &mlp->ml_next;
1935 if ((mlfile = fopen(_PATH_RMOUNTLIST, "w")) == NULL) {
1936 syslog(LOG_ERR,"can't update %s", _PATH_RMOUNTLIST);
1941 fprintf(mlfile, "%s %s\n", mlp->ml_host, mlp->ml_dirp);
1949 add_mlist(char *hostp, char *dirp)
1951 struct mountlist *mlp, **mlpp;
1957 if (!strcmp(mlp->ml_host, hostp) && !strcmp(mlp->ml_dirp, dirp))
1959 mlpp = &mlp->ml_next;
1962 mlp = (struct mountlist *)malloc(sizeof (*mlp));
1963 if (mlp == (struct mountlist *)NULL)
1965 strncpy(mlp->ml_host, hostp, RPCMNT_NAMELEN);
1966 mlp->ml_host[RPCMNT_NAMELEN] = '\0';
1967 strncpy(mlp->ml_dirp, dirp, RPCMNT_PATHLEN);
1968 mlp->ml_dirp[RPCMNT_PATHLEN] = '\0';
1969 mlp->ml_next = (struct mountlist *)NULL;
1971 if ((mlfile = fopen(_PATH_RMOUNTLIST, "a")) == NULL) {
1972 syslog(LOG_ERR, "can't update %s", _PATH_RMOUNTLIST);
1975 fprintf(mlfile, "%s %s\n", mlp->ml_host, mlp->ml_dirp);
1980 * Free up a group list.
1983 free_grp(struct grouplist *grp)
1987 if (grp->gr_type == GT_HOST) {
1988 if (grp->gr_ptr.gt_hostent->h_name) {
1989 addrp = grp->gr_ptr.gt_hostent->h_addr_list;
1990 while (addrp && *addrp)
1992 free((caddr_t)grp->gr_ptr.gt_hostent->h_addr_list);
1993 free(grp->gr_ptr.gt_hostent->h_name);
1995 free((caddr_t)grp->gr_ptr.gt_hostent);
1996 } else if (grp->gr_type == GT_NET) {
1997 if (grp->gr_ptr.gt_net.nt_name)
1998 free(grp->gr_ptr.gt_net.nt_name);
2005 SYSLOG(int pri, const char *fmt, ...)
2010 vfprintf(stderr, fmt, ap);
2016 * Check options for consistency.
2019 check_options(struct dirlist *dp)
2022 if (dp == (struct dirlist *)NULL)
2024 if ((opt_flags & (OP_MAPROOT | OP_MAPALL)) == (OP_MAPROOT | OP_MAPALL) ||
2025 (opt_flags & (OP_MAPROOT | OP_KERB)) == (OP_MAPROOT | OP_KERB) ||
2026 (opt_flags & (OP_MAPALL | OP_KERB)) == (OP_MAPALL | OP_KERB)) {
2027 syslog(LOG_ERR, "-mapall, -maproot and -kerb mutually exclusive");
2030 if ((opt_flags & OP_MASK) && (opt_flags & OP_NET) == 0) {
2031 syslog(LOG_ERR, "-mask requires -network");
2034 if ((opt_flags & OP_ALLDIRS) && dp->dp_left) {
2035 syslog(LOG_ERR, "-alldirs has multiple directories");
2042 * Check an absolute directory path for any symbolic links. Return true
2043 * if no symbolic links are found.
2046 check_dirpath(char *dirp)
2053 while (*cp && ret) {
2056 if (lstat(dirp, &sb) < 0 || !S_ISDIR(sb.st_mode))
2062 if (lstat(dirp, &sb) < 0 || !S_ISDIR(sb.st_mode))
2068 * Just translate an ascii string to an integer.
2076 if (*cp < '0' || *cp > '9')
2078 res = res * 10 + (*cp++ - '0');