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-rw-r--r--util-linux/mount.c45
1 files changed, 24 insertions, 21 deletions
diff --git a/util-linux/mount.c b/util-linux/mount.c
index 5219842ef..bc9759e81 100644
--- a/util-linux/mount.c
+++ b/util-linux/mount.c
@@ -101,7 +101,7 @@ struct {
/* Append mount options to string */
static void append_mount_options(char **oldopts, char *newopts)
{
- if(*oldopts && **oldopts) {
+ if (*oldopts && **oldopts) {
char *temp = xasprintf("%s,%s",*oldopts,newopts);
free(*oldopts);
*oldopts = temp;
@@ -128,7 +128,7 @@ static int parse_mount_options(char *options, char **unrecognized)
for (i = 0; i < (sizeof(mount_options) / sizeof(*mount_options)); i++) {
if (!strcasecmp(mount_options[i].name, options)) {
long fl = mount_options[i].flags;
- if(fl < 0) flags &= fl;
+ if (fl < 0) flags &= fl;
else flags |= fl;
break;
}
@@ -147,7 +147,7 @@ static int parse_mount_options(char *options, char **unrecognized)
}
// Advance to next option, or finish
- if(comma) {
+ if (comma) {
*comma = ',';
options = ++comma;
} else break;
@@ -166,17 +166,18 @@ static llist_t *get_block_backed_filesystems(void)
int i;
FILE *f;
- for(i = 0; filesystems[i]; i++) {
- if(!(f = fopen(filesystems[i], "r"))) continue;
+ for (i = 0; filesystems[i]; i++) {
+ f = fopen(filesystems[i], "r");
+ if (!f) continue;
- for(fs = buf = 0; (fs = buf = bb_get_chomped_line_from_file(f));
+ for (fs = buf = 0; (fs = buf = bb_get_chomped_line_from_file(f));
free(buf))
{
- if(!strncmp(buf,"nodev",5) && isspace(buf[5])) continue;
+ if (!strncmp(buf,"nodev",5) && isspace(buf[5])) continue;
- while(isspace(*fs)) fs++;
- if(*fs=='#' || *fs=='*') continue;
- if(!*fs) continue;
+ while (isspace(*fs)) fs++;
+ if (*fs=='#' || *fs=='*') continue;
+ if (!*fs) continue;
llist_add_to_end(&list,xstrdup(fs));
}
@@ -206,18 +207,19 @@ static int fakeIt;
#endif
// Perform actual mount of specific filesystem at specific location.
+// NB: mp->xxx fields may be trashed on exit
static int mount_it_now(struct mntent *mp, int vfsflags, char *filteropts)
{
int rc;
- if (fakeIt) { return 0; }
+ if (fakeIt) return 0;
// Mount, with fallback to read-only if necessary.
- for(;;) {
+ for (;;) {
rc = mount(mp->mnt_fsname, mp->mnt_dir, mp->mnt_type,
vfsflags, filteropts);
- if(!rc || (vfsflags&MS_RDONLY) || (errno!=EACCES && errno!=EROFS))
+ if (!rc || (vfsflags&MS_RDONLY) || (errno!=EACCES && errno!=EROFS))
break;
bb_error_msg("%s is write-protected, mounting read-only",
mp->mnt_fsname);
@@ -440,7 +442,6 @@ enum {
#endif
};
-
/*
* We want to be able to compile mount on old kernels in such a way
* that the binary will work well on more recent kernels.
@@ -1283,7 +1284,7 @@ static int singlemount(struct mntent *mp, int ignore_busy)
// Might this be an CIFS filesystem?
- if(ENABLE_FEATURE_MOUNT_CIFS &&
+ if (ENABLE_FEATURE_MOUNT_CIFS &&
(!mp->mnt_type || !strcmp(mp->mnt_type,"cifs")) &&
(mp->mnt_fsname[0]==mp->mnt_fsname[1] && (mp->mnt_fsname[0]=='/' || mp->mnt_fsname[0]=='\\')))
{
@@ -1345,7 +1346,7 @@ static int singlemount(struct mntent *mp, int ignore_busy)
if (ENABLE_FEATURE_MOUNT_LOOP && S_ISREG(st.st_mode)) {
loopFile = bb_simplify_path(mp->mnt_fsname);
mp->mnt_fsname = 0;
- switch(set_loop(&(mp->mnt_fsname), loopFile, 0)) {
+ switch (set_loop(&(mp->mnt_fsname), loopFile, 0)) {
case 0:
case 1:
break;
@@ -1385,7 +1386,8 @@ static int singlemount(struct mntent *mp, int ignore_busy)
for (fl = fslist; fl; fl = fl->link) {
mp->mnt_type = fl->data;
- if (!(rc = mount_it_now(mp,vfsflags, filteropts))) break;
+ rc = mount_it_now(mp,vfsflags, filteropts);
+ if (!rc) break;
mp->mnt_type = 0;
}
@@ -1474,7 +1476,7 @@ int mount_main(int argc, char **argv)
if (!all) {
FILE *mountTable = setmntent(bb_path_mtab_file, "r");
- if(!mountTable) bb_error_msg_and_die("no %s",bb_path_mtab_file);
+ if (!mountTable) bb_error_msg_and_die("no %s",bb_path_mtab_file);
while (getmntent_r(mountTable,mtpair,bb_common_bufsiz1,
sizeof(bb_common_bufsiz1)))
@@ -1521,14 +1523,15 @@ int mount_main(int argc, char **argv)
fstabname = bb_path_mtab_file;
else fstabname="/etc/fstab";
- if (!(fstab=setmntent(fstabname,"r")))
+ fstab = setmntent(fstabname,"r");
+ if (!fstab)
bb_perror_msg_and_die("cannot read %s",fstabname);
// Loop through entries until we find what we're looking for.
memset(mtpair,0,sizeof(mtpair));
for (;;) {
- struct mntent *mtnext = mtpair + (mtcur==mtpair ? 1 : 0);
+ struct mntent *mtnext = (mtcur==mtpair ? mtpair+1 : mtpair);
// Get next fstab entry
@@ -1565,7 +1568,7 @@ int mount_main(int argc, char **argv)
// Is this what we're looking for?
- if(strcmp(argv[optind],mtcur->mnt_fsname) &&
+ if (strcmp(argv[optind],mtcur->mnt_fsname) &&
strcmp(storage_path,mtcur->mnt_fsname) &&
strcmp(argv[optind],mtcur->mnt_dir) &&
strcmp(storage_path,mtcur->mnt_dir)) continue;