1 files changed, 24 insertions, 0 deletions
diff --git a/src/libstdcrypto/sha1_feed.c b/src/libstdcrypto/sha1_feed.c
new file mode 100644
index 0000000..208cebd
--- /dev/null
+++ b/src/libstdcrypto/sha1_feed.c
@@ -0,0 +1,24 @@
+/* ISC license. */
+
+#include <skalibs/uint32.h>
+#include <skalibs/bytestr.h>
+#include <skalibs/sha1.h>
+#include "sha1-internal.h"
+
+void sha1_feed (SHA1Schedule_ref ctx, unsigned char inb)
+{
+  register uint32 tmp ;
+
+  ctx->in[ctx->b>>2] <<= 8 ;
+  ctx->in[ctx->b>>2] |= T8(inb) ;
+  if (++ctx->b >= 64)
+  {
+    register unsigned int i = 0 ;
+    sha1_transform(ctx->buf, ctx->in) ;
+    ctx->b = 0 ;
+    for (i = 0 ; i < 16 ; i++) ctx->in[i] = 0 ;
+  }
+  tmp = ctx->bits[0] ;
+  ctx->bits[0] += 8 ;
+  if (tmp > ctx->bits[0]) ctx->bits[1]++ ;
+}