contact_mail_user in modules/contact.module
Personal contact page.
file_download in includes/file.inc
Call modules that implement hook_file_download() to find out if a file is accessible and what headers it should be transferred with. If a module returns -1 drupal_access_denied() will be returned. If one or more modules returned headers the download…
node_revision_delete in modules/node.module
Delete the revision with specified revision number. A "delete revision" nodeapi event is invoked when a revision is deleted.
node_revision_revert in modules/node.module
Revert to the revision with the specified revision number. A node and nodeapi "update" event is triggered (via the node_save() call) when a revision is reverted.
page_example_baz in developer/examples/page_example.module
A more complex page callback that takes arguments.
profile_browse in modules/profile.module
Menu callback; display a list of user information.