Encapsulate access to node->nn_stat

* procfs.c, procfs.h (procfs_node_chown,
  procfs_node_chmod, procfs_node_chtype): New functions, encapsulate
  access to some nn_stat fields.
* process.c (process_lookup_pid): Use procfs_node_chown instead
  of direct access.

1 files changed, 19 insertions, 0 deletions

diff --git a/procfs.c b/procfs.c
index 0a235a76..5396ecf7 100644
--- a/procfs.c
+++ b/procfs.c
@@ -67,6 +67,25 @@ fail:
   return NULL;
 }
 
+void procfs_node_chown (struct node *np, uid_t owner)
+{
+  np->nn_stat.st_uid = owner;
+}
+
+void procfs_node_chmod (struct node *np, mode_t mode)
+{
+  np->nn_stat.st_mode = (np->nn_stat.st_mode & S_IFMT) | mode;
+  np->nn_translated = np->nn_stat.st_mode;
+}
+
+void procfs_node_chtype (struct node *np, mode_t type)
+{
+  np->nn_stat.st_mode = (np->nn_stat.st_mode & ~S_IFMT) | type;
+  np->nn_translated = np->nn_stat.st_mode;
+  if (type == S_IFLNK)
+    procfs_node_chmod (np, 0777);
+}
+
 /* FIXME: possibly not the fastest hash function... */
 ino64_t
 procfs_make_ino (struct node *np, const char *filename)