From 5c6f79744a8bdf4cfb0e91517847281739c3e624 Mon Sep 17 00:00:00 2001
From: Ian Moffett <ian@osmora.org>
Date: Mon, 11 Aug 2025 05:12:08 -0400
Subject: usr: sysctl: Add parsing for 'proc.*' nodes

Signed-off-by: Ian Moffett <ian@osmora.org>
---
 usr.bin/sysctl/sysctl.c | 35 +++++++++++++++++++++++++++++++++++
 1 file changed, 35 insertions(+)

diff --git a/usr.bin/sysctl/sysctl.c b/usr.bin/sysctl/sysctl.c
index 1e7f2c0..4a84484 100644
--- a/usr.bin/sysctl/sysctl.c
+++ b/usr.bin/sysctl/sysctl.c
@@ -46,13 +46,18 @@
 #define NAME_NCPU     "ncpu"
 #define NAME_MACHINE  "machine"
 
+/* Proc var string constants */
+#define NAME_COUNT "count"
+
 /* Name start string constants */
 #define NAME_KERN "kern"
 #define NAME_HW   "hw"
+#define NAME_PROC "proc"
 
 /* Name start int constants */
 #define NAME_DEF_KERN 0
 #define NAME_DEF_HW   1
+#define NAME_DEF_PROC 2
 
 /*
  * Print the contents read from a sysctl
@@ -104,6 +109,12 @@ name_to_def(const char *name)
             return NAME_DEF_HW;
         }
 
+        return -1;
+    case 'p':
+        if (strcmp(name, NAME_PROC) == 0) {
+            return NAME_DEF_PROC;
+        }
+
         return -1;
     }
 
@@ -177,6 +188,28 @@ hw_node(const char *node, bool *is_str)
     return -1;
 }
 
+/*
+ * Handle parsing of 'proc.*' node names
+ *
+ * @node: Node name to parse
+ * @is_str: Set to true if string
+ */
+static int
+proc_node(const char *node, bool *is_str)
+{
+    switch (*node) {
+    case 'c':
+        if (strcmp(node, NAME_COUNT) == 0) {
+            *is_str = false;
+            return PROC_COUNT;
+        }
+
+        return -1;
+    }
+
+    return -1;
+}
+
 /*
  * Convert string node to a sysctl name
  * definition.
@@ -215,6 +248,8 @@ node_to_def(int name, const char *node, bool *is_str)
         return kern_node(node, is_str);
     case NAME_DEF_HW:
         return hw_node(node, is_str);
+    case NAME_DEF_PROC:
+        return proc_node(node, is_str);
     }
 
     return -1;
-- 
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