1 files changed, 28 insertions, 0 deletions
diff --git a/src/librandom/randomegd_readnb.c b/src/librandom/randomegd_readnb.c
new file mode 100644
index 0000000..29165c4
--- /dev/null
+++ b/src/librandom/randomegd_readnb.c
@@ -0,0 +1,28 @@
+/* ISC license. */
+
+#include <skalibs/allreadwrite.h>
+#include <skalibs/randomegd.h>
+
+unsigned int randomegd_readnb (int s, char *x, unsigned int n)
+{
+  unsigned int w = 0 ;
+  while ((n - w) >= 255)
+  {
+    char c[2] = { 0x01, 0xFF } ;
+    register unsigned char wtmp ;
+    if (allwrite(s, c, 2) < 2) return w ;
+    if (sanitize_read(fd_read(s, c+1, 1)) < 1) return w ;
+    wtmp = allread(s, x + w, c[1]) ;
+    w += wtmp ;
+    if ((wtmp < (unsigned char)c[1]) || ((unsigned char)c[1] < 0xFF)) return w ;
+  }
+  if (w < n)
+  {
+    char c[2] = "\001" ;
+    c[1] = n - w ;
+    if (allwrite(s, c, 2) < 2) return w ;
+    if (sanitize_read(fd_read(s, c+1, 1)) < 1) return w ;
+    w += allread(s, x + w, c[1]) ;
+  }
+  return w ;
+}