From 5bb7065c734d427cfc3f9156c930d08ddbf4b05a Mon Sep 17 00:00:00 2001
From: Dante Catalfamo
Date: Fri, 30 Oct 2020 00:39:35 -0400
Subject: _auth_next_arg and more on auth_call

---
 .../WIP-how-bsd-authentication-works/index.org     | 34 +++++++++++++++-------
 1 file changed, 23 insertions(+), 11 deletions(-)

(limited to 'content/posts/WIP-how-bsd-authentication-works/index.org')

diff --git a/content/posts/WIP-how-bsd-authentication-works/index.org b/content/posts/WIP-how-bsd-authentication-works/index.org
index 3e2d76f..c06596b 100644
--- a/content/posts/WIP-how-bsd-authentication-works/index.org
+++ b/content/posts/WIP-how-bsd-authentication-works/index.org
@@ -406,8 +406,6 @@
   =auth_call= is responsible for setting up the environment,
   calling the modules, and communicating with them.
 
-  First, the variable arguments are placed in =as->ap0=.
-
   An array of char pointers called =argv= is allocated to hold the arguments for the
   auth module.
 
@@ -415,18 +413,19 @@
   char *argv[64];		/* 64 args should be more than enough */
   #+END_SRC
 
-  - =auth_next_arg=
-    #+BEGIN_SRC c
-    static char * _auth_next_arg(auth_session_t *as)
-    #+END_SRC
+  First, the variable arguments are placed in =as->ap0=.
 
-    First goes through =as->ap0=, returning one argument at a time
-    until it hits the =NULL= character pointer. At which point it
-    calls =va_end(as->ap0)= and =explicit_bzero='s it.
+  =_auth_next_arg= is called once, with the result being set as the
+  first element in =argv=. If =as->fd= is set, add =-v= and =fd=4= to
+  =argv=.
 
-    Moves on to do the same thing for =as->ap=.
+  Then it loops through the =optlist= and appends =-v= followed the
+  option for each of them.
 
-    Finally when it's gone through both lists, returns =NULL=
+  After that the rest of the arguments are retrieved from
+  =_auth_next_arg= and added to the end of =argv=.
+
+  If there are any extra options left over
 
   <<here>>
 
@@ -588,6 +587,19 @@
   after reading both the man page and source.
   ---
 
+** _auth_next_arg
+   #+BEGIN_SRC c
+   static char * _auth_next_arg(auth_session_t *as)
+   #+END_SRC
+
+   First goes through =as->ap0=, returning one argument at a time
+   until it hits the =NULL= character pointer. At which point it
+   calls =va_end(as->ap0)= and =explicit_bzero='s it.
+
+   Moves on to do the same thing for =as->ap=.
+
+   Finally when it's gone through both lists, returns =NULL=
+
 ** _auth_spool
 
 ** _recv_fd
-- 
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