From d71cd194393a9615674b1a7c2433cfd290f6d8f0 Mon Sep 17 00:00:00 2001
From: Dante Catalfamo
Date: Fri, 28 May 2021 16:00:14 -0400
Subject: bsd-auth: add func def for last function mentioned so far

---
 .../posts/WIP-how-bsd-authentication-works/index.org    | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

(limited to 'content/posts')

diff --git a/content/posts/WIP-how-bsd-authentication-works/index.org b/content/posts/WIP-how-bsd-authentication-works/index.org
index b2e3da1..678ef6b 100644
--- a/content/posts/WIP-how-bsd-authentication-works/index.org
+++ b/content/posts/WIP-how-bsd-authentication-works/index.org
@@ -2106,6 +2106,23 @@
   :CUSTOM_ID: _auth_validuser
   :END:
 
+  @@html: <details> <summary> @@
+  #+begin_src c
+  int _auth_validuser(const char *name)
+  #+end_src
+  @@html: </summary> @@
+  #+begin_src c
+  {
+      /* User name must be specified and may not start with a '-'. */
+      if (*name == '\0' || *name == '-') {
+          syslog(LOG_ERR, "invalid user name %s", name);
+          return 0;
+      }
+      return 1;
+  }
+  #+end_src
+  @@html: </details> @@
+
 
 * COMMENT note                                                     :noexport:
 
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