merge with 0.30.213

[util-vserver.git] / src / testsuite / hashcalc-plain.c

diff --git a/src/testsuite/hashcalc-plain.c b/src/testsuite/hashcalc-plain.c
new file mode 100644 (file)
index 0000000..5b6ff47
--- /dev/null
+++ b/src/testsuite/hashcalc-plain.c
@@ -0,0 +1,92 @@
+// $Id: hashcalc-plain.c 2245 2006-01-04 17:28:42Z ensc $    --*- c -*--
+
+// Copyright (C) 2006 Enrico Scholz <enrico.scholz@informatik.tu-chemnitz.de>
+//  
+// This program is free software; you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation; version 2 of the License.
+//  
+// This program 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 General Public License for more details.
+//  
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#include <beecrypt/beecrypt.h>
+#include <stdbool.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <sys/mman.h>
+
+#define ENSC_TESTSUITE
+#include "lib_internal/coreassert.h"
+
+#define HASH_BLOCKSIZE         0x10000000u
+
+static bool
+convertDigest(char res[], hashFunctionContext * h_ctx)
+{
+  static char const            HEX_DIGIT[] = "0123456789abcdef";
+  size_t                       d_size   = h_ctx->algo->digestsize;
+    
+  unsigned char                        digest[d_size];
+  size_t                       out = 0;
+
+  if (hashFunctionContextDigest(h_ctx, digest)==-1)
+    return false;
+  
+  for (size_t in=0; in<d_size; ++in) {
+    res[out++]  = HEX_DIGIT[digest[in] >>    4];
+    res[out++]  = HEX_DIGIT[digest[in] &  0x0f];
+  }
+  res[out++] = '\0';
+  
+  return true;
+}
+
+int main(int UNUSED argc, char *argv[])
+{
+  int                  fd = open(argv[1], O_NOFOLLOW|O_NONBLOCK|O_RDONLY|O_NOCTTY);
+  hashFunctionContext  hash_context;
+  hashFunction const   *method;
+  struct stat          st;
+  off_t                        size;
+  loff_t               offset = 0;
+  char                 digest[1024];
+
+  assert((method = hashFunctionFind(argv[2]))!=0);
+  assert(hashFunctionContextInit(&hash_context, method)!=-1);
+
+  assert(fstat(fd, &st)!=-1);
+  assert(hashFunctionContextReset(&hash_context)!=-1);
+
+  size = st.st_size;
+
+  while (offset < size) {
+    loff_t volatile            buf_size = size-offset;
+    void const *               buf;
+    if (buf_size>HASH_BLOCKSIZE) buf_size = HASH_BLOCKSIZE;
+
+    assert((buf=mmap(0, buf_size, PROT_READ, MAP_SHARED, fd, offset))!=0);
+    offset += buf_size;
+    assert(hashFunctionContextUpdate(&hash_context, buf, buf_size)!=-1);
+    munmap((void *)(buf), buf_size);
+  }
+    
+  assert(convertDigest(digest, &hash_context));
+  
+  Vwrite(1, digest, strlen(digest));
+  Vwrite(1, "\n", 1);
+  
+  hashFunctionContextFree(&hash_context);
+  
+  return 0;
+}