misc: Rename libssh/ to src/

src/gcrypt_missing.c

@@ -0,0 +1,99 @@
+/*
+ * gcrypt_missing.c - routines that are in OpenSSL but not in libgcrypt.
+ *
+ * This file is part of the SSH Library
+ *
+ * Copyright (c) 2003-2006 by Aris Adamantiadis
+ *
+ * The SSH Library is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2.1 of the License, or (at your
+ * option) any later version.
+ *
+ * The SSH Library is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
+ * License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with the SSH Library; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
+ * MA 02111-1307, USA.
+ */
+
+#include <stdlib.h>
+#include "libssh/priv.h"
+
+#ifdef HAVE_LIBGCRYPT
+int my_gcry_dec2bn(bignum *bn, const char *data) {
+  int count;
+
+  *bn = bignum_new();
+  if (*bn == NULL) {
+    return 0;
+  }
+  gcry_mpi_set_ui(*bn, 0);
+  for (count = 0; data[count]; count++) {
+    gcry_mpi_mul_ui(*bn, *bn, 10);
+    gcry_mpi_add_ui(*bn, *bn, data[count] - '0');
+  }
+
+  return count;
+}
+
+char *my_gcry_bn2dec(bignum bn) {
+  bignum bndup, num, ten;
+  char *ret;
+  int count, count2;
+  int size, rsize;
+  char decnum;
+
+  size = gcry_mpi_get_nbits(bn) * 3;
+  rsize = size / 10 + size / 1000 + 2;
+
+  ret = malloc(rsize + 1);
+  if (ret == NULL) {
+    return NULL;
+  }
+
+  if (!gcry_mpi_cmp_ui(bn, 0)) {
+    strcpy(ret, "0");
+  } else {
+    ten = bignum_new();
+    if (ten == NULL) {
+      SAFE_FREE(ret);
+      return NULL;
+    }
+
+    num = bignum_new();
+    if (num == NULL) {
+      SAFE_FREE(ret);
+      bignum_free(ten);
+      return NULL;
+    }
+
+    for (bndup = gcry_mpi_copy(bn), bignum_set_word(ten, 10), count = rsize;
+        count; count--) {
+      gcry_mpi_div(bndup, num, bndup, ten, 0);
+      for (decnum = 0, count2 = gcry_mpi_get_nbits(num); count2;
+          decnum *= 2, decnum += (gcry_mpi_test_bit(num, count2 - 1) ? 1 : 0),
+          count2--)
+        ;
+      ret[count - 1] = decnum + '0';
+    }
+    for (count = 0; count < rsize && ret[count] == '0'; count++)
+      ;
+    for (count2 = 0; count2 < rsize - count; ++count2) {
+      ret[count2] = ret[count2 + count];
+    }
+    ret[count2] = 0;
+    bignum_free(num);
+    bignum_free(bndup);
+    bignum_free(ten);
+  }
+
+  return ret;
+}
+
+#endif
+/* vim: set ts=2 sw=2 et cindent: */