about summary refs log tree commit diff
path: root/md5-crypt/md5-crypt.c
diff options
context:
space:
mode:
authorGeoff Keating <geoffk@cygnus.com>2000-03-04 00:47:31 +0000
committerGeoff Keating <geoffk@cygnus.com>2000-03-04 00:47:31 +0000
commitb11f59548803413101b72d28f42cbe997d64a144 (patch)
tree4898a19a9169c9cedd0250e0e7590dbc6058b189 /md5-crypt/md5-crypt.c
parente3d53b06cc8520c23a010909ab2f0bde93f2abfc (diff)
downloadglibc-b11f59548803413101b72d28f42cbe997d64a144.tar.gz
glibc-b11f59548803413101b72d28f42cbe997d64a144.tar.xz
glibc-b11f59548803413101b72d28f42cbe997d64a144.zip
* Makeconfig (rpath-dirs): Add crypt.
(all-subdirs): Remove md5crypt. 
* crypt/sysdeps/unix/crypt.c: Move to crypt/. 
* crypt/sysdeps/unix/crypt-entry.c: Move to crypt/. 
* sysdeps/generic/crypt-entry.c: Delete. 
* crypt/sysdeps/unix/crypt.h: Move to crypt/. 
* sysdeps/generic/crypt.h: Delete. 
* crypt/sysdeps/unix/crypt-private.h: Move to crypt/. 
* crypt/sysdeps/unix/crypt_util.c: Move to crypt/. 
* crypt/sysdeps/unix/des_impl.c: Move to sunrpc/. 
* sysdeps/generic/des_impl.c: Delete. 
* crypt/sysdeps/unix/ufc-crypt.h: Move to crypt/. 
* crypt/sysdeps: Delete. 
* crypt/crypt_util.c: Don't use `patchlevel.h'. 
* md5-crypt/Versions: Move to crypt/. 
* md5-crypt/md5-crypt.c: Move to crypt/. 
* md5-crypt/md5.c: Move to crypt/. 
* md5-crypt/md5c-test.c: Move to crypt/. 
* md5-crypt/md5test.c: Move to crypt/. 
* md5-crypt: Delete. 
* crypt/Makefile: Adjust for new structure.
2000-03-03  Geoff Keating  <geoffk@cygnus.com>

	* Makeconfig (rpath-dirs): Add crypt.
	(all-subdirs): Remove md5crypt.
	* crypt/sysdeps/unix/crypt.c: Move to crypt/.
	* crypt/sysdeps/unix/crypt-entry.c: Move to crypt/.
	* sysdeps/generic/crypt-entry.c: Delete.
	* crypt/sysdeps/unix/crypt.h: Move to crypt/.
	* sysdeps/generic/crypt.h: Delete.
	* crypt/sysdeps/unix/crypt-private.h: Move to crypt/.
	* crypt/sysdeps/unix/crypt_util.c: Move to crypt/.
	* crypt/sysdeps/unix/des_impl.c: Move to sunrpc/.
	* sysdeps/generic/des_impl.c: Delete.
	* crypt/sysdeps/unix/ufc-crypt.h: Move to crypt/.
	* crypt/sysdeps: Delete.
	* crypt/crypt_util.c: Don't use `patchlevel.h'.
	* md5-crypt/Versions: Move to crypt/.
	* md5-crypt/md5-crypt.c: Move to crypt/.
	* md5-crypt/md5.c: Move to crypt/.
	* md5-crypt/md5c-test.c: Move to crypt/.
	* md5-crypt/md5test.c: Move to crypt/.
	* md5-crypt: Delete.
	* crypt/Makefile: Adjust for new structure.
Diffstat (limited to 'md5-crypt/md5-crypt.c')
-rw-r--r--md5-crypt/md5-crypt.c223
1 files changed, 0 insertions, 223 deletions
diff --git a/md5-crypt/md5-crypt.c b/md5-crypt/md5-crypt.c
deleted file mode 100644
index 126103503c..0000000000
--- a/md5-crypt/md5-crypt.c
+++ /dev/null
@@ -1,223 +0,0 @@
-/* One way encryption based on MD5 sum.
-   Copyright (C) 1996, 1997, 1999 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Library General Public License as
-   published by the Free Software Foundation; either version 2 of the
-   License, or (at your option) any later version.
-
-   The GNU C 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
-   Library General Public License for more details.
-
-   You should have received a copy of the GNU Library General Public
-   License along with the GNU C Library; see the file COPYING.LIB.  If not,
-   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-   Boston, MA 02111-1307, USA.  */
-
-#include <errno.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/param.h>
-
-#include "md5.h"
-
-
-/* Define our magic string to mark salt for MD5 "encryption"
-   replacement.  This is meant to be the same as for other MD5 based
-   encryption implementations.  */
-static const char md5_salt_prefix[] = "$1$";
-
-/* Table with characters for base64 transformation.  */
-static const char b64t[64] =
-"./0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
-
-
-/* Prototypes for local functions.  */
-extern char *__md5_crypt_r __P ((const char *key, const char *salt,
-				 char *buffer, int buflen));
-extern char *__md5_crypt __P ((const char *key, const char *salt));
-
-
-/* This entry point is equivalent to the `crypt' function in Unix
-   libcs.  */
-char *
-__md5_crypt_r (key, salt, buffer, buflen)
-     const char *key;
-     const char *salt;
-     char *buffer;
-     int buflen;
-{
-  unsigned char alt_result[16];
-  struct md5_ctx ctx;
-  struct md5_ctx alt_ctx;
-  size_t salt_len;
-  size_t key_len;
-  size_t cnt;
-  char *cp;
-
-  /* Find beginning of salt string.  The prefix should normally always
-     be present.  Just in case it is not.  */
-  if (strncmp (md5_salt_prefix, salt, sizeof (md5_salt_prefix) - 1) == 0)
-    /* Skip salt prefix.  */
-    salt += sizeof (md5_salt_prefix) - 1;
-
-  salt_len = MIN (strcspn (salt, "$"), 8);
-  key_len = strlen (key);
-
-  /* Prepare for the real work.  */
-  __md5_init_ctx (&ctx);
-
-  /* Add the key string.  */
-  __md5_process_bytes (key, key_len, &ctx);
-
-  /* Because the SALT argument need not always have the salt prefix we
-     add it separately.  */
-  __md5_process_bytes (md5_salt_prefix, sizeof (md5_salt_prefix) - 1, &ctx);
-
-  /* The last part is the salt string.  This must be at most 8
-     characters and it ends at the first `$' character (for
-     compatibility which existing solutions).  */
-  __md5_process_bytes (salt, salt_len, &ctx);
-
-
-  /* Compute alternate MD5 sum with input KEY, SALT, and KEY.  The
-     final result will be added to the first context.  */
-  __md5_init_ctx (&alt_ctx);
-
-  /* Add key.  */
-  __md5_process_bytes (key, key_len, &alt_ctx);
-
-  /* Add salt.  */
-  __md5_process_bytes (salt, salt_len, &alt_ctx);
-
-  /* Add key again.  */
-  __md5_process_bytes (key, key_len, &alt_ctx);
-
-  /* Now get result of this (16 bytes) and add it to the other
-     context.  */
-  __md5_finish_ctx (&alt_ctx, alt_result);
-
-  /* Add for any character in the key one byte of the alternate sum.  */
-  for (cnt = key_len; cnt > 16; cnt -= 16)
-    __md5_process_bytes (alt_result, 16, &ctx);
-  __md5_process_bytes (alt_result, cnt, &ctx);
-
-  /* For the following code we need a NUL byte.  */
-  *alt_result = '\0';
-
-  /* The original implementation now does something weird: for every 1
-     bit in the key the first 0 is added to the buffer, for every 0
-     bit the first character of the key.  This does not seem to be
-     what was intended but we have to follow this to be compatible.  */
-  for (cnt = key_len; cnt > 0; cnt >>= 1)
-    __md5_process_bytes ((cnt & 1) != 0 ? (const char *) alt_result : key, 1,
-			 &ctx);
-
-  /* Create intermediate result.  */
-  __md5_finish_ctx (&ctx, alt_result);
-
-  /* Now comes another weirdness.  In fear of password crackers here
-     comes a quite long loop which just processes the output of the
-     previous round again.  We cannot ignore this here.  */
-  for (cnt = 0; cnt < 1000; ++cnt)
-    {
-      /* New context.  */
-      __md5_init_ctx (&ctx);
-
-      /* Add key or last result.  */
-      if ((cnt & 1) != 0)
-	__md5_process_bytes (key, key_len, &ctx);
-      else
-	__md5_process_bytes (alt_result, 16, &ctx);
-
-      /* Add salt for numbers not divisible by 3.  */
-      if (cnt % 3 != 0)
-	__md5_process_bytes (salt, salt_len, &ctx);
-
-      /* Add key for numbers not divisible by 7.  */
-      if (cnt % 7 != 0)
-	__md5_process_bytes (key, key_len, &ctx);
-
-      /* Add key or last result.  */
-      if ((cnt & 1) != 0)
-	__md5_process_bytes (alt_result, 16, &ctx);
-      else
-	__md5_process_bytes (key, key_len, &ctx);
-
-      /* Create intermediate result.  */
-      __md5_finish_ctx (&ctx, alt_result);
-    }
-
-  /* Now we can construct the result string.  It consists of three
-     parts.  */
-  cp = __stpncpy (buffer, md5_salt_prefix, MAX (0, buflen));
-  buflen -= sizeof (md5_salt_prefix);
-
-  cp = __stpncpy (cp, salt, MIN ((size_t) buflen, salt_len));
-  buflen -= MIN ((size_t) buflen, salt_len);
-
-  if (buflen > 0)
-    {
-      *cp++ = '$';
-      --buflen;
-    }
-
-#define b64_from_24bit(B2, B1, B0, N)					      \
-  do {									      \
-    unsigned int w = ((B2) << 16) | ((B1) << 8) | (B0);			      \
-    int n = (N);							      \
-    while (n-- > 0 && buflen > 0)					      \
-      {									      \
-	*cp++ = b64t[w & 0x3f];						      \
-	--buflen;							      \
-	w >>= 6;							      \
-      }									      \
-  } while (0)
-
-
-  b64_from_24bit (alt_result[0], alt_result[6], alt_result[12], 4);
-  b64_from_24bit (alt_result[1], alt_result[7], alt_result[13], 4);
-  b64_from_24bit (alt_result[2], alt_result[8], alt_result[14], 4);
-  b64_from_24bit (alt_result[3], alt_result[9], alt_result[15], 4);
-  b64_from_24bit (alt_result[4], alt_result[10], alt_result[5], 4);
-  b64_from_24bit (0, 0, alt_result[11], 2);
-  if (buflen <= 0)
-    {
-      __set_errno (ERANGE);
-      buffer = NULL;
-    }
-  else
-    *cp = '\0';		/* Terminate the string.  */
-
-  /* Clear the buffer for the intermediate result so that people
-     attaching to processes or reading core dumps cannot get any
-     information.  */
-  memset (alt_result, '\0', sizeof (alt_result));
-
-  return buffer;
-}
-
-
-char *
-__md5_crypt (const char *key, const char *salt)
-{
-  /* We don't want to have an arbitrary limit in the size of the
-     password.  We can compute the size of the result in advance and
-     so we can prepare the buffer we pass to `md5_crypt_r'.  */
-  static char *buffer = NULL;
-  static int buflen = 0;
-  int needed = 3 + strlen (salt) + 1 + 26 + 1;
-
-  if (buflen < needed)
-    {
-      buflen = needed;
-      if ((buffer = realloc (buffer, buflen)) == NULL)
-	return NULL;
-    }
-
-  return __md5_crypt_r (key, salt, buffer, buflen);
-}