1 files changed, 21 insertions, 0 deletions
diff --git a/src/librandom/rrandom_read.c b/src/librandom/rrandom_read.c
new file mode 100644
index 0000000..57ff920
--- /dev/null
+++ b/src/librandom/rrandom_read.c
@@ -0,0 +1,21 @@
+/* ISC license. */
+
+#include <errno.h>
+#include <skalibs/allreadwrite.h>
+#include <skalibs/error.h>
+#include <skalibs/unirandom.h>
+#include <skalibs/rrandom.h>
+
+unsigned int rrandom_read (rrandom_ref z, char *s, unsigned int n, unsigned int (*f) (unirandom_ref, char *, unsigned int))
+{
+  unsigned int i = 0 ;
+  for (; i < 3 ; i++)
+  {
+    int r ;
+    if (!z->tries[i].ok) continue ;
+    r = sanitize_read((*f)(&z->tries[i].it, s, n)) ;
+    if (r > 0) return r ;
+    z->tries[i].ok = error_temp(errno) ? z->tries[i].ok - 1 : 0 ;
+  }
+  return (errno = ENOENT, 0) ;
+}