Add a helper module for simple regular files

* procfs_file.h: New file, declares procfs_file_make_node.
* procfs_file.c: New file, implements procfs_file_make_node.
* main.c: Use them.
* Makefile: Add the procfs_file module.

1 files changed, 6 insertions, 0 deletions

diff --git a/procfs_file.h b/procfs_file.h
new file mode 100644
index 00000000..b615db93
--- /dev/null
+++ b/procfs_file.h
@@ -0,0 +1,6 @@
+/* Create a new regular file with the given CONTENTS. If LEN is negative,
+   CONTENTS is considered as a string and the file stops at the first
+   nul char.  If CLEANUP is non-NULL, it is passed CONTENTS when the
+   node is destroyed.  */
+struct node *
+procfs_file_make_node (void *contents, ssize_t len, void (*cleanup)(void *));