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Make df(1) exit with non-success status if something went wrong.

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PR:		bin/4415
This commit is contained in:
Joerg Wunsch 1997-10-12 13:55:43 +00:00
parent b394198484
commit b8904f2acb
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=30340
1 changed files with 18 additions and 11 deletions
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29
bin/df/df.c
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@ -47,7 +47,7 @@ static const char copyright[] =
static char sccsid[] = "@(#)df.c 8.9 (Berkeley) 5/8/95";
#else
static const char rcsid[] =
"$Id: df.c,v 1.16 1997/03/28 15:24:17 imp Exp $";
"$Id: df.c,v 1.17 1997/08/07 21:31:00 steve Exp $";
#endif
#endif /* not lint */
@ -70,7 +70,7 @@ long regetmntinfo __P((struct statfs **, long, char **));
int bread __P((off_t, void *, int));
char *getmntpt __P((char *));
void prtstat __P((struct statfs *, int));
void ufs_df __P((char *, int));
int ufs_df __P((char *, int));
void usage __P((void));
int iflag, nflag;
@ -84,7 +84,7 @@ main(argc, argv)
struct stat stbuf;
struct statfs statfsbuf, *mntbuf;
long mntsize;
int ch, err, i, maxwidth, width;
int ch, err, i, maxwidth, width, rv;
char *mntpt, **vfslist;
vfslist = NULL;
@ -119,6 +119,7 @@ main(argc, argv)
maxwidth = width;
}
rv = 0;
if (!*argv) {
mntsize = regetmntinfo(&mntbuf, mntsize, vfslist);
if (vfslist != NULL) {
@ -131,7 +132,7 @@ main(argc, argv)
}
for (i = 0; i < mntsize; i++)
prtstat(&mntbuf[i], maxwidth);
exit(0);
exit(rv);
}
for (; *argv; argv++) {
@ -139,10 +140,11 @@ main(argc, argv)
err = errno;
if ((mntpt = getmntpt(*argv)) == 0) {
warn("%s", *argv);
rv = 1;
continue;
}
} else if ((stbuf.st_mode & S_IFMT) == S_IFCHR) {
ufs_df(*argv, maxwidth);
rv = ufs_df(*argv, maxwidth) || rv;
continue;
} else if ((stbuf.st_mode & S_IFMT) == S_IFBLK) {
if ((mntpt = getmntpt(*argv)) == 0) {
@ -150,18 +152,21 @@ main(argc, argv)
mdev.fspec = *argv;
if (mkdir(mntpt, DEFFILEMODE) != 0) {
warn("%s", mntpt);
rv = 1;
continue;
}
if (mount("ufs", mntpt, MNT_RDONLY,
&mdev) != 0) {
ufs_df(*argv, maxwidth);
rv = ufs_df(*argv, maxwidth) || rv;
(void)rmdir(mntpt);
continue;
} else if (statfs(mntpt, &statfsbuf) == 0) {
statfsbuf.f_mntonname[0] = '\0';
prtstat(&statfsbuf, maxwidth);
} else
} else {
warn("%s", *argv);
rv = 1;
}
(void)unmount(mntpt, 0);
(void)rmdir(mntpt);
continue;
@ -174,13 +179,14 @@ main(argc, argv)
*/
if (statfs(mntpt, &statfsbuf) < 0) {
warn("%s", mntpt);
rv = 1;
continue;
}
if (argc == 1)
maxwidth = strlen(statfsbuf.f_mntfromname) + 1;
prtstat(&statfsbuf, maxwidth);
}
return (0);
return (rv);
}
char *
@ -295,7 +301,7 @@ union {
int rfd;
void
int
ufs_df(file, maxwidth)
char *file;
int maxwidth;
@ -310,11 +316,11 @@ ufs_df(file, maxwidth)
if ((rfd = open(file, O_RDONLY)) < 0) {
warn("%s", file);
return;
return 1;
}
if (bread((off_t)SBOFF, &sblock, SBSIZE) == 0) {
(void)close(rfd);
return;
return 1;
}
sfsp = &statfsbuf;
sfsp->f_type = 1;
@ -336,6 +342,7 @@ ufs_df(file, maxwidth)
memmove(&sfsp->f_mntfromname[0], file, MNAMELEN);
prtstat(sfsp, maxwidth);
(void)close(rfd);
return 0;
}
int