Skip to content

Commit

Permalink
Merge pull request #398 from giuseppe/fix-check-for-proc
Browse files Browse the repository at this point in the history
main: fix check for writeable /proc
giuseppe authored Jun 8, 2023
2 parents bcea6c9 + 06f8a69 commit 6452d53
Showing 1 changed file with 5 additions and 7 deletions.
12 changes: 5 additions & 7 deletions main.c
Original file line number Diff line number Diff line change
@@ -296,25 +296,23 @@ inode_to_node (struct ovl_data *lo, ino_t n)
static void
check_writeable_proc ()
{
struct statvfs svfs;
struct statfs sfs;

struct statfs svfs;
int ret;

ret = statfs ("/proc", &sfs);
ret = statfs ("/proc", &svfs);
if (ret < 0)
{
fprintf (stderr, "error stating /proc: %m\n");
return;
}

if (sfs.f_type != PROC_SUPER_MAGIC)
if (svfs.f_type != PROC_SUPER_MAGIC)
{
fprintf (stderr, "invalid file system type found on /proc: %m\n");
fprintf (stderr, "invalid file system type found on /proc: %d, expected %d\n", svfs.f_fsid, PROC_SUPER_MAGIC);
return;
}

if (svfs.f_flag & ST_RDONLY)
if (svfs.f_flags & ST_RDONLY)
{
fprintf (stderr, "/proc seems to be mounted as readonly, it can lead to unexpected failures");
return;

0 comments on commit 6452d53

Please sign in to comment.