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Fix operation of df on unmounted filesystems, and add the ability to run df

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on unmounted non-UFS filesystem using '-t'

Submitted by:	bde
This commit is contained in:
Kris Kennaway 2001-05-09 08:44:15 +00:00
parent e58c2d0ce4
commit f3895a821a
1 changed files with 38 additions and 4 deletions
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40
bin/df/df.c
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@ -119,7 +119,9 @@ main(argc, argv)
struct statfs statfsbuf, *mntbuf;
long mntsize;
int ch, err, i, maxwidth, rv, width;
char *mntpt, **vfslist;
char *fstype, *mntpath, *mntpt, **vfslist;
fstype = "ufs";
vfslist = NULL;
while ((ch = getopt(argc, argv, "abgHhikmnPt:")) != -1)
@ -162,6 +164,7 @@ main(argc, argv)
case 't':
if (vfslist != NULL)
errx(1, "only one -t option may be specified.");
fstype = optarg;
vfslist = makevfslist(optarg);
break;
case '?':
@ -205,9 +208,40 @@ main(argc, argv)
rv = 1;
continue;
}
} else if ((stbuf.st_mode & S_IFMT) == S_IFCHR) {
rv = ufs_df(*argv, maxwidth) || rv;
} else if (S_ISCHR(stbuf.st_mode)) {
if ((mntpt = getmntpt(*argv)) == 0) {
mdev.fspec = *argv;
mntpath = strdup("/tmp/df.XXXXXX");
if (mntpath == NULL) {
warn("strdup failed");
rv = 1;
continue;
}
mntpt = mkdtemp(mntpath);
if (mntpt == NULL) {
warn("mkdtemp(\"%s\") failed", mntpath);
rv = 1;
free(mntpath);
continue;
}
if (mount(fstype, mntpt, MNT_RDONLY,
&mdev) != 0) {
rv = ufs_df(*argv, maxwidth) || rv;
(void)rmdir(mntpt);
free(mntpath);
continue;
} else if (statfs(mntpt, &statfsbuf) == 0) {
statfsbuf.f_mntonname[0] = '\0';
prtstat(&statfsbuf, maxwidth);
} else {
warn("%s", *argv);
rv = 1;
}
(void)unmount(mntpt, 0);
(void)rmdir(mntpt);
free(mntpath);
continue;
}
} else
mntpt = *argv;
/*