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Diffstat (limited to 'contrib/mount/mntent.c')
| -rw-r--r-- | contrib/mount/mntent.c | 163 |
1 files changed, 163 insertions, 0 deletions
diff --git a/contrib/mount/mntent.c b/contrib/mount/mntent.c new file mode 100644 index 00000000000..5ab5ac19e84 --- /dev/null +++ b/contrib/mount/mntent.c @@ -0,0 +1,163 @@ +/* + * 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) 2014 + * Red Hat, Inc. <http://www.redhat.com> + * + * 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. + */ + +#ifdef GF_DARWIN_HOST_OS +#include <stdlib.h> +#include <string.h> +#include <sys/param.h> +#include <sys/ucred.h> +#include <sys/mount.h> +#include "mntent_compat.h" + +static int pos = -1; +static int mntsize = -1; +static struct mntent _mntent; + +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 * +concatopt (char *s0, const char *s1) +{ + size_t i; + char *cp; + + if (s1 == NULL || *s1 == '\0') + return s0; + if (s0 && *s0) { + i = strlen(s0) + strlen(s1) + 1 + 1; + if ((cp = (char *)malloc(i)) == NULL) + return (NULL); + (void)snprintf(cp, i, "%s %s", s0, s1); + } else + cp = strdup(s1); + + if (s0) + free(s0); + return (cp); +} + + +static char * +flags2opts (int flags) +{ + char *res; + res = NULL; + res = concatopt(res, (flags & MNT_RDONLY) ? "ro" : "rw"); + if (flags & MNT_SYNCHRONOUS) res = concatopt(res, "sync"); + if (flags & MNT_NOEXEC) res = concatopt(res, "noexec"); + if (flags & MNT_NOSUID) res = concatopt(res, "nosuid"); + if (flags & MNT_NODEV) res = concatopt(res, "nodev"); + if (flags & MNT_UNION) res = concatopt(res, "union"); + if (flags & MNT_ASYNC) res = concatopt(res, "async"); +#if !defined(GF_DARWIN_HOST_OS) + if (flags & MNT_NOATIME) res = concatopt(res, "noatime"); + if (flags & MNT_NOCLUSTERR) res = concatopt(res, "noclusterr"); + if (flags & MNT_NOCLUSTERW) res = concatopt(res, "noclusterw"); + if (flags & MNT_NOSYMFOLLOW) res = concatopt(res, "nosymfollow"); + if (flags & MNT_SUIDDIR) res = concatopt(res, "suiddir"); +#endif + 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])); +} + +/* Dummy functions */ +FILE * +setmntent(const char *filename, const char *type) +{ + return (FILE *)0x1; +} + +int +endmntent (FILE *fp) +{ + return 1; +} +#endif /* GF_DARWIN_HOST_OS */ |