From 687f61eb77d0878d752266ace8bb8933cf5f9556 Mon Sep 17 00:00:00 2001
From: Wynn Wolf Arbor
Date: Sun, 24 May 2020 13:55:36 +0200
Subject: Add getdtablecount(2)

This was taken from https://github.com/Duncaen/lobase
---
 getdtablecount.c | 26 ++++++++++++++++++++++++++
 getdtablecount.h |  6 ++++++
 slowcgi.c        |  1 +
 3 files changed, 33 insertions(+)
 create mode 100644 getdtablecount.c
 create mode 100644 getdtablecount.h

diff --git a/getdtablecount.c b/getdtablecount.c
new file mode 100644
index 0000000..5bfa5ed
--- /dev/null
+++ b/getdtablecount.c
@@ -0,0 +1,26 @@
+#include <sys/types.h>
+#include <dirent.h>
+#include "getdtablecount.h"
+
+#ifdef __linux__
+int
+getdtablecount(void)
+{
+	struct dirent *dp;
+	DIR *dir;
+	int n;
+
+	/* XXX: return something different? */
+	if (!(dir = opendir("/proc/self/fd")))
+		return 0;
+
+	n = 0;
+	while ((dp = readdir(dir)))
+		n++;
+
+	closedir(dir);
+	return n;
+}
+#else
+#error getdtablecount(2) not supported
+#endif
diff --git a/getdtablecount.h b/getdtablecount.h
new file mode 100644
index 0000000..9174792
--- /dev/null
+++ b/getdtablecount.h
@@ -0,0 +1,6 @@
+#ifndef GETDTABLECOUNT_H
+#define GETDTABLECOUNT_H
+
+int getdtablecount(void);
+
+#endif
diff --git a/slowcgi.c b/slowcgi.c
index 2ca70ba..2ced6d1 100644
--- a/slowcgi.c
+++ b/slowcgi.c
@@ -39,6 +39,7 @@
 #include <unistd.h>
 #include <grp.h>
 
+#include "getdtablecount.h"
 #include "queue.h"
 
 #ifdef strlcpy
-- 
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