new files

git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@885 ec53bebd-3082-4978-b11e-865c3cabbd6b

lib/otp/otp_verify.c

@@ -0,0 +1,41 @@
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+RCSID("$Id$");
+#endif
+
+#include "otp_locl.h"
+
+int
+otp_verify_user_1 (OtpContext *ctx, char *passwd)
+{
+  OtpKey key1, key2;
+
+  if (otp_parse (key1, passwd, ctx->alg))
+    return -1;
+  memcpy (key2, key1, sizeof(key1));
+  ctx->alg->next (key2);
+  if (memcmp (ctx->key, key2, sizeof(key2)) == 0) {
+    --ctx->n;
+    memcpy (ctx->key, key1, sizeof(key1));
+    return 0;
+  } else
+    return -1;
+}
+
+int
+otp_verify_user (OtpContext *ctx, char *passwd)
+{
+  void *dbm;
+  int ret;
+
+  otp_verify_user_1 (ctx, passwd);
+  dbm = otp_db_open ();
+  if (dbm == NULL) {
+    free(ctx->user);
+    return -1;
+  }
+  ret = otp_put (dbm, ctx);
+  free(ctx->user);
+  otp_db_close (dbm);
+  return ret;
+}