2 * Copyright (c) 2006 Pawel Jakub Dawidek <pjd@FreeBSD.org>
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 * This file implements Solaris compatible getmntany() and hasmntopt()
32 #include <sys/cdefs.h>
33 __FBSDID("$FreeBSD$");
35 #include <sys/param.h>
36 #include <sys/mount.h>
37 #include <sys/mntent.h>
38 #include <sys/mnttab.h>
52 while (*cp && isspace(*cp))
56 while (*cp && *cp != ',')
69 hasmntopt(struct mnttab *mnt, char *opt)
71 char tmpopts[MNT_LINE_MAX];
72 char *f, *opts = tmpopts;
74 if (mnt->mnt_mntopts == NULL)
76 (void) strcpy(opts, mnt->mnt_mntopts);
78 for (; *f; f = mntopt(&opts)) {
79 if (strncmp(opt, f, strlen(opt)) == 0)
80 return (f - tmpopts + mnt->mnt_mntopts);
86 optadd(char *mntopts, size_t size, const char *opt)
89 if (mntopts[0] != '\0')
90 strlcat(mntopts, ",", size);
91 strlcat(mntopts, opt, size);
95 statfs2mnttab(struct statfs *sfs, struct mnttab *mp)
97 static char mntopts[MNTMAXSTR];
102 flags = sfs->f_flags;
103 #define OPTADD(opt) optadd(mntopts, sizeof(mntopts), (opt))
104 if (flags & MNT_RDONLY)
108 if (flags & MNT_NOSUID)
109 OPTADD(MNTOPT_NOSUID);
111 OPTADD(MNTOPT_SETUID);
112 if (flags & MNT_UPDATE)
113 OPTADD(MNTOPT_REMOUNT);
114 if (flags & MNT_NOATIME)
115 OPTADD(MNTOPT_NOATIME);
117 OPTADD(MNTOPT_ATIME);
118 OPTADD(MNTOPT_NOXATTR);
119 if (flags & MNT_NOEXEC)
120 OPTADD(MNTOPT_NOEXEC);
124 mp->mnt_special = sfs->f_mntfromname;
125 mp->mnt_mountp = sfs->f_mntonname;
126 mp->mnt_fstype = sfs->f_fstypename;
127 mp->mnt_mntopts = mntopts;
130 static struct statfs *gsfs = NULL;
131 static int allfs = 0;
143 allfs = getfsstat(NULL, 0, MNT_WAIT);
146 gsfs = malloc(sizeof(gsfs[0]) * allfs * 2);
149 allfs = getfsstat(gsfs, (long)(sizeof(gsfs[0]) * allfs * 2),
153 sfs = realloc(gsfs, allfs * sizeof(gsfs[0]));
167 getmntany(FILE *fd __unused, struct mnttab *mgetp, struct mnttab *mrefp)
172 error = statfs_init();
176 for (i = 0; i < allfs; i++) {
177 if (mrefp->mnt_special != NULL &&
178 strcmp(mrefp->mnt_special, gsfs[i].f_mntfromname) != 0) {
181 if (mrefp->mnt_mountp != NULL &&
182 strcmp(mrefp->mnt_mountp, gsfs[i].f_mntonname) != 0) {
185 if (mrefp->mnt_fstype != NULL &&
186 strcmp(mrefp->mnt_fstype, gsfs[i].f_fstypename) != 0) {
189 statfs2mnttab(&gsfs[i], mgetp);
196 getmntent(FILE *fp, struct mnttab *mp)
201 nfs = (int)lseek(fileno(fp), 0, SEEK_CUR);
204 /* If nfs is 0, we want to refresh out cache. */
205 if (nfs == 0 || gsfs == NULL) {
206 error = statfs_init();
212 statfs2mnttab(&gsfs[nfs], mp);
213 if (lseek(fileno(fp), 1, SEEK_CUR) == -1)