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-rw-r--r--getdtablecount.c26
1 files changed, 26 insertions, 0 deletions
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