[PATCH] procfs: set d_type on returned direntries

[dnietoc]

From: Diego Nieto Cid <dnietoc@gmail.com>

Hello,

This sets d_type to DT_DIR in those entries of procfs
which are actually directories; which allows libgtop
to list processes using the linux port code.

Hope this is what you had in mind Samuel. It's not
very robust, but I couldn't find other way to do it.

Regards,
Diego

-- >8 -- >8 -- >8 --

---
 procfs/netfs.c | 25 ++++++++++++++++++++++++-
 1 file changed, 24 insertions(+), 1 deletion(-)

diff --git a/procfs/netfs.c b/procfs/netfs.c
index 4ed5eab6..3cf7a8e2 100644
--- a/procfs/netfs.c
+++ b/procfs/netfs.c
@@ -115,6 +115,29 @@ error_t netfs_attempt_readlink (struct iouser *user, 
struct node *np,
   return 0;
 }
 
+static unsigned char entry_type(char *name)
+{
+  char c;
+  int only_numbers;
+
+  if (name[0] == '.' && name[1] == 0)
+    return DT_DIR;
+
+  if (name[0] == '.' && name[1] == '.' && name[2] == 0)
+    return DT_DIR;
+
+  if (strcmp(name, "self") == 0)
+    return DT_DIR;
+
+  for(only_numbers = 1, c = *name; only_numbers && c; c = *++name)
+    {
+      if (c < '0' || c > '9')
+        only_numbers = 0;
+    }
+
+  return only_numbers ? DT_DIR : DT_UNKNOWN;
+}
+
 /* Helper function for netfs_get_dirents() below.  CONTENTS is an argz
    vector of directory entry names, as returned by procfs_get_contents().
    Convert at most NENTRIES of them to dirent structures, put them in
@@ -142,7 +165,7 @@ static int putentries (char *contents, size_t contents_len, 
int nentries,
          d->d_fileno = 42; /* XXX */
          d->d_namlen = namlen;
          d->d_reclen = reclen;
-         d->d_type = DT_UNKNOWN;
+         d->d_type = entry_type(contents);
          memcpy (d->d_name, contents, namlen + 1);
          if (pad)
            memset(d->d_name + namlen + 1, 0, pad);
-- 
2.47.1