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freebsd-ports/net/freerdp/files/mntent_compat.c
Kyle Evans 6e99cb1aa7 net/freerdp: fix build on FreeBSD 11.x
Apparently this hadn't been caught in my test matrix -- it seems that later
versions of FreeBSD have a getmntent() definition that masked this error.

mntent_compat.c has been adopted from devel/fam, though a better solution
should be sought out going into the future.

Approved by:	koobs (mentor, implicit, just-fix-it)
MFH:		2020Q2 (blanket: build fix)
2020-06-09 17:09:40 +00:00

175 lines
4.5 KiB
C

/*
* Copyright (c) 1980, 1989, 1993, 1994
* The Regents of the University of California. All rights reserved.
* Copyright (c) 2001
* David Rufino <daverufino@btinternet.com>
* Copyright (c) 2006
* Stanislav Sedov <ssedov@mbsd.msk.ru>
*
* 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.
*/
/* most of this was ripped from the mount(3) source */
#include "config.h"
#include "mntent.h"
#include <stdlib.h>
#include <string.h>
#include <sys/param.h>
#include <sys/ucred.h>
#include <sys/mount.h>
static int pos = -1;
static int mntsize = -1;
static struct mntent _mntent;
struct {
int m_flag;
const char *m_option;
} mntoptions[] = {
{ MNT_ASYNC, "async" },
{ MNT_NOATIME, "noatime"},
{ MNT_NOEXEC, "noexec"},
{ MNT_NOSUID, "nosuid"},
{ MNT_NOSYMFOLLOW, "nosymfollow"},
{ MNT_SYNCHRONOUS, "sync"},
{ MNT_UNION, "union"},
{ MNT_NOCLUSTERR, "noclusterr"},
{ MNT_NOCLUSTERW, "noclusterw"},
{ MNT_SUIDDIR, "suiddir"},
#ifdef MNT_SNAPSHOT
{ MNT_SNAPSHOT, "snapshot"},
#endif
#ifdef MNT_MULTILABEL
{ MNT_MULTILABEL, "multilabel"},
#endif
#ifdef MNT_ACLS
{ MNT_ACLS, "acls"},
#endif
#ifdef MNT_NODEV
{ MNT_NODEV, "nodev"},
#endif
};
#define N_OPTS (sizeof(mntoptions) / sizeof(*mntoptions))
char *
hasmntopt (const struct mntent *mnt, const char *option)
{
int found;
char *opt, *optbuf;
optbuf = strdup(mnt->mnt_opts);
found = 0;
for (opt = optbuf; (opt = strtok(opt, " ")) != NULL; opt = NULL) {
if (!strcasecmp(opt, option)) {
opt = opt - optbuf + mnt->mnt_opts;
free (optbuf);
return (opt);
}
}
free (optbuf);
return (NULL);
}
static char *
catopt (char *s0, const char *s1)
{
size_t newlen;
char *cp;
if (s1 == NULL || *s1 == '\0')
return s0;
if (s0 != NULL) {
newlen = strlen(s0) + strlen(s1) + 1 + 1;
if ((cp = (char *)realloc(s0, newlen)) == NULL)
return (NULL);
(void)strcat(cp, " ");
(void)strcat(cp, s1);
} else
cp = strdup(s1);
return (cp);
}
static char *
flags2opts (int flags)
{
char *res = NULL;
int i;
res = catopt(res, (flags & MNT_RDONLY) ? "ro" : "rw");
for (i = 0; i < N_OPTS; i++)
if (flags & mntoptions[i].m_flag)
res = catopt(res, mntoptions[i].m_option);
return res;
}
static struct mntent *
statfs_to_mntent (struct statfs *mntbuf)
{
static char opts_buf[40], *tmp;
_mntent.mnt_fsname = mntbuf->f_mntfromname;
_mntent.mnt_dir = mntbuf->f_mntonname;
_mntent.mnt_type = mntbuf->f_fstypename;
tmp = flags2opts (mntbuf->f_flags);
if (tmp) {
opts_buf[sizeof(opts_buf) - 1] = '\0';
strncpy (opts_buf, tmp, sizeof(opts_buf)-1);
free (tmp);
} else {
*opts_buf = '\0';
}
_mntent.mnt_opts = opts_buf;
_mntent.mnt_freq = _mntent.mnt_passno = 0;
return (&_mntent);
}
struct mntent *
getmntent (FILE *fp)
{
struct statfs *mntbuf;
if (pos == -1 || mntsize == -1)
mntsize = getmntinfo (&mntbuf, MNT_NOWAIT);
++pos;
if (pos == mntsize) {
pos = mntsize = -1;
return (NULL);
}
return (statfs_to_mntent (&mntbuf[pos]));
}