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-rw-r--r--lib/libautofs/libautofs.c479
1 files changed, 0 insertions, 479 deletions
diff --git a/lib/libautofs/libautofs.c b/lib/libautofs/libautofs.c
deleted file mode 100644
index 459b32d..0000000
--- a/lib/libautofs/libautofs.c
+++ /dev/null
@@ -1,479 +0,0 @@
-/*
- * Copyright (c) 2004 Alfred Perlstein <alfred@FreeBSD.org>
- * 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.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
- *
- * $FreeBSD$
- * $Id: libautofs.c,v 1.5 2004/09/08 08:44:12 bright Exp $
- */
-#include <err.h>
-#include <ctype.h>
-#include <err.h>
-#include <errno.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-#include <fcntl.h>
-
-#include <sys/types.h>
-#include <sys/param.h>
-#include <sys/mount.h>
-#include <sys/poll.h>
-#include <sys/stat.h>
-#include <sys/sysctl.h>
-
-#ifdef AUTOFSSTANDALONE
-#include "../autofs/autofs.h"
-#else
-#include <fs/autofs/autofs.h>
-#endif
-
-#include "libautofs.h"
-
-struct auto_handle {
- char ah_mp[MNAMELEN];
- fsid_t ah_fsid;
- int ah_fd;
-};
-
-static int autofs_sysctl(int, fsid_t *, void *, size_t *, void *, size_t);
-static void safe_free(void *ptr);
-static int getmntlst(struct statfs **sfsp, int *cntp);
-
-static void
-safe_free(void *ptr)
-{
- int saved_errno;
-
- saved_errno = errno;
- free(ptr);
- errno = saved_errno;
-}
-
-int
-getmntlst(struct statfs **sfsp, int *cntp)
-{
- int cnt;
- long bufsize;
-
- *sfsp = NULL;
- cnt = getfsstat(NULL, 0, MNT_NOWAIT);
- bufsize = cnt * sizeof(**sfsp);
- /*fprintf(stderr, "getmntlst bufsize %ld, cnt %d\n", bufsize, cnt);*/
- *sfsp = malloc(bufsize);
- if (sfsp == NULL)
- goto err;
- cnt = getfsstat(*sfsp, bufsize, MNT_NOWAIT);
- if (cnt == -1)
- goto err;
- *cntp = cnt;
- /*fprintf(stderr, "getmntlst ok, cnt %d\n", cnt);*/
- return (0);
-err:
- safe_free(sfsp);
- *sfsp = NULL;
- /*fprintf(stderr, "getmntlst bad\n");*/
- return (-1);
-}
-
-/* get a handle based on a path. */
-int
-autoh_get(const char *path, autoh_t *ahp)
-{
- struct statfs *sfsp, *sp;
- int cnt, fd, i;
- autoh_t ret;
-
- ret = NULL;
- /*
- * We use getfsstat to prevent avoid the lookups on the mountpoints
- * that statfs(2) would do.
- */
- if (getmntlst(&sfsp, &cnt))
- goto err;
- for (i = 0; i < cnt; i++) {
- if (strcmp(sfsp[i].f_mntonname, path) == 0)
- break;
- }
- if (i == cnt) {
- /*fprintf(stderr, "autoh_get bad %d %d\n", i, cnt);*/
- errno = ENOENT;
- goto err;
- }
- sp = &sfsp[i];
- if (strcmp(sp->f_fstypename, "autofs")) {
- errno = ENOTTY;
- goto err;
- }
- fd = open(sp->f_mntonname, O_RDONLY);
- if (fd == -1)
- goto err;
- ret = malloc(sizeof(*ret));
- if (ret == NULL)
- goto err;
-
- ret->ah_fsid = sp->f_fsid;
- ret->ah_fd = fd;
- strlcpy(ret->ah_mp, sp->f_mntonname, sizeof(ret->ah_mp));
- safe_free(sfsp);
- *ahp = ret;
- return (0);
-err:
- safe_free(ret);
- safe_free(sfsp);
- return (-1);
-}
-
-/* release. */
-void
-autoh_free(autoh_t ah)
-{
- int saved_errno;
-
- saved_errno = errno;
- close(ah->ah_fd);
- free(ah);
- errno = saved_errno;
-}
-
-/*
- * Get an array of pointers to all the currently mounted autofs
- * instances.
- */
-int
-autoh_getall(autoh_t **arrayp, int *cntp)
-{
- struct statfs *sfsp;
- int cnt, i, pos;
- autoh_t *array;
-
- array = NULL;
- /*
- * We use getfsstat to prevent avoid the lookups on the mountpoints
- * that statfs(2) would do.
- */
- if (getmntlst(&sfsp, &cnt))
- goto err;
- array = *arrayp = calloc(cnt + 1, sizeof(**arrayp));
- if (array == NULL)
- goto err;
- for (i = 0, pos = 0; i < cnt; i++) {
- if (autoh_get(sfsp[i].f_mntonname, &array[pos]) == -1) {
- /* not an autofs entry, that's ok, otherwise bail */
- if (errno == ENOTTY)
- continue;
- goto err;
- }
- pos++;
- }
- if (pos == 0) {
- errno = ENOENT;
- goto err;
- }
- *arrayp = array;
- *cntp = pos;
- safe_free(sfsp);
- return (0);
-err:
- safe_free(sfsp);
- if (array)
- autoh_freeall(array);
- return (-1);
-}
-
-/* release. */
-void
-autoh_freeall(autoh_t *ah)
-{
- autoh_t *ahp;
-
- ahp = ah;
-
- while (*ahp != NULL) {
- autoh_free(*ahp);
- ahp++;
- }
- safe_free(ah);
-}
-
-/* return fd to select on. */
-int
-autoh_fd(autoh_t ah)
-{
-
- return (ah->ah_fd);
-}
-
-const char *
-autoh_mp(autoh_t ah)
-{
-
- return (ah->ah_mp);
-}
-
-static int do_autoreq_get(autoh_t ah, autoreq_t *reqp, int *cntp);
-
-/* get an array of pending requests */
-int
-autoreq_get(autoh_t ah, autoreq_t **reqpp, int *cntp)
-{
- int cnt, i;
- autoreq_t req, *reqp;
-
- if (do_autoreq_get(ah, &req, &cnt))
- return (-1);
-
- reqp = calloc(cnt + 1, sizeof(*reqp));
- if (reqp == NULL) {
- safe_free(req);
- return (-1);
- }
- for (i = 0; i < cnt; i++)
- reqp[i] = &req[i];
- *reqpp = reqp;
- *cntp = cnt;
- return (0);
-}
-
-int
-do_autoreq_get(autoh_t ah, autoreq_t *reqp, int *cntp)
-{
- size_t olen;
- struct autofs_userreq *reqs;
- int cnt, error;
- int vers;
-
- vers = AUTOFS_PROTOVERS;
-
- error = 0;
- reqs = NULL;
- olen = 0;
- cnt = 0;
- error = autofs_sysctl(AUTOFS_CTL_GETREQS, &ah->ah_fsid, NULL, &olen,
- &vers, sizeof(vers));
- if (error == -1)
- goto out;
- if (olen == 0)
- goto out;
-
- reqs = malloc(olen);
- if (reqs == NULL)
- goto out;
- error = autofs_sysctl(AUTOFS_CTL_GETREQS, &ah->ah_fsid, reqs, &olen,
- &vers, sizeof(vers));
- if (error == -1)
- goto out;
-out:
- if (error) {
- safe_free(reqs);
- return (-1);
- }
- cnt = olen / sizeof(*reqs);
- *cntp = cnt;
- *reqp = reqs;
- return (0);
-}
-
-/* free an array of requests */
-void
-autoreq_free(autoh_t ah __unused, autoreq_t *req)
-{
-
- free(*req);
- free(req);
-}
-
-/* serve a request */
-int
-autoreq_serv(autoh_t ah, autoreq_t req)
-{
- int error;
-
- error = autofs_sysctl(AUTOFS_CTL_SERVREQ, &ah->ah_fsid, NULL, NULL,
- req, sizeof(*req));
- return (error);
-}
-
-enum autoreq_op
-autoreq_getop(autoreq_t req)
-{
-
- switch (req->au_op) {
- case AREQ_LOOKUP:
- return (AUTOREQ_OP_LOOKUP);
- case AREQ_STAT:
- return (AUTOREQ_OP_STAT);
- case AREQ_READDIR:
- return (AUTOREQ_OP_READDIR);
- default:
- return (AUTOREQ_OP_UNKNOWN);
- }
-}
-
-/* get a request's file name. */
-const char *
-autoreq_getpath(autoreq_t req)
-{
-
- return (req->au_name);
-}
-
-/* get a request's inode. a indirect mount may return AUTO_INODE_NONE. */
-autoino_t
-autoreq_getino(autoreq_t req)
-{
-
- return (req->au_ino);
-}
-
-void
-autoreq_setino(autoreq_t req, autoino_t ino)
-{
-
- req->au_ino = ino;
-}
-
-/* get a request's directory inode. */
-autoino_t
-autoreq_getdirino(autoreq_t req)
-{
-
- return (req->au_dino);
-}
-
-void
-autoreq_seterrno(autoreq_t req, int error)
-{
-
- req->au_errno = error;
-}
-
-void
-autoreq_setaux(autoreq_t req, void *auxdata, size_t auxlen)
-{
-
- req->au_auxdata = auxdata;
- req->au_auxlen = auxlen;
-}
-
-void
-autoreq_getaux(autoreq_t req, void **auxdatap, size_t *auxlenp)
-{
-
- *auxdatap = req->au_auxdata;
- *auxlenp = req->au_auxlen;
-}
-
-void
-autoreq_seteof(autoreq_t req, int eof)
-{
-
- req->au_eofflag = eof;
-}
-
-void
-autoreq_getoffset(autoreq_t req, off_t *offp)
-{
-
- *offp = req->au_offset - AUTOFS_USEROFF;
-}
-
-void
-autoreq_getxid(autoreq_t req, int *xid)
-{
-
- *xid = req->au_xid;
-}
-
-/* toggle by path. args = handle, AUTO_?, pid (-1 to disable), path. */
-int
-autoh_togglepath(autoh_t ah, int op, pid_t pid, const char *path)
-{
- int fd, ret;
-
- fd = open(path, O_RDONLY);
- if (fd == -1)
- return (-1);
- ret = autoh_togglefd(ah, op, pid, fd);
- close(fd);
- return (ret);
-}
-
-/* toggle by fd. args = handle, AUTO_?, pid (-1 to disable), fd. */
-int
-autoh_togglefd(autoh_t ah, int op, pid_t pid, int fd)
-{
- struct stat sb;
- struct autofs_mounterreq mr;
- int error, realop;
-
- switch (op) {
- case AUTO_DIRECT:
- realop = AUTOFS_CTL_TRIGGER;
- break;
- case AUTO_INDIRECT:
- realop = AUTOFS_CTL_SUBTRIGGER;
- break;
- case AUTO_MOUNTER:
- realop = AUTOFS_CTL_MOUNTER;
- break;
- case AUTO_BROWSE:
- realop = AUTOFS_CTL_BROWSE;
- break;
- default:
- errno = ENOTTY;
- return (-1);
- }
-
- if (fstat(fd, &sb))
- return (-1);
- bzero(&mr, sizeof(mr));
- mr.amu_ino = sb.st_ino;
- mr.amu_pid = pid;
- error = autofs_sysctl(realop, &ah->ah_fsid, NULL, NULL,
- &mr, sizeof(mr));
- return (error);
-}
-
-int
-autofs_sysctl(op, fsid, oldp, oldlenp, newp, newlen)
- int op;
- fsid_t *fsid;
- void *oldp;
- size_t *oldlenp;
- void *newp;
- size_t newlen;
-{
- struct vfsidctl vc;
-
- bzero(&vc, sizeof(vc));
- vc.vc_op = op;
- strcpy(vc.vc_fstypename, "*");
- vc.vc_vers = VFS_CTL_VERS1;
- vc.vc_fsid = *fsid;
- vc.vc_ptr = newp;
- vc.vc_len = newlen;
- return (sysctlbyname("vfs.autofs.ctl", oldp, oldlenp, &vc, sizeof(vc)));
-}
-
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