warnings in 'des' module

[Bruno Haible]

Hi Simon,

When compiling all of gnulib with SunPRO C 5.9 on Linux/x86, there is only
one file with warnings.

c89 -Xa -DHAVE_CONFIG_H -DEXEEXT=\"\" -DEXEEXT=\"\" 
-DLIBDIR=\"/packages/inst-sunpro/lib\" -I. -I. -I..  -I../intl   -xO5 -c des.c
"des.c", line 450: warning: assignment type mismatch:
        pointer to const unsigned char "=" pointer to const char
"des.c", line 562: warning: assignment type mismatch:
        pointer to const unsigned char "=" pointer to const char
"des.c", line 563: warning: assignment type mismatch:
        pointer to unsigned char "=" pointer to char
"des.c", line 635: warning: assignment type mismatch:
        pointer to const unsigned char "=" pointer to const char
"des.c", line 636: warning: assignment type mismatch:
        pointer to unsigned char "=" pointer to char

Here is a fix: Add casts.

Bruno


*** lib/des.c.bak       2005-10-21 14:28:18.000000000 +0200
--- lib/des.c   2006-05-07 16:50:07.000000000 +0200
***************
*** 1,5 ****
  /* des.c --- DES and Triple-DES encryption/decryption Algorithm
!  * Copyright (C) 1998, 1999, 2001, 2002, 2003, 2004, 2005
   *    Free Software Foundation, Inc.
   *
   * This file is free software; you can redistribute it and/or modify
--- 1,5 ----
  /* des.c --- DES and Triple-DES encryption/decryption Algorithm
!  * Copyright (C) 1998, 1999, 2001, 2002, 2003, 2004, 2005, 2006
   *    Free Software Foundation, Inc.
   *
   * This file is free software; you can redistribute it and/or modify
***************
*** 447,453 ****
  static void
  des_key_schedule (const char * _rawkey, uint32_t * subkey)
  {
!   const unsigned char *rawkey = _rawkey;
    uint32_t left, right, work;
    int round;
  
--- 447,453 ----
  static void
  des_key_schedule (const char * _rawkey, uint32_t * subkey)
  {
!   const unsigned char *rawkey = (const unsigned char *) _rawkey;
    uint32_t left, right, work;
    int round;
  
***************
*** 559,566 ****
  void
  des_ecb_crypt (des_ctx *ctx, const char * _from, char * _to, int mode)
  {
!   const unsigned char *from = _from;
!   unsigned char *to = _to;
    uint32_t left, right, work;
    uint32_t *keys;
  
--- 559,566 ----
  void
  des_ecb_crypt (des_ctx *ctx, const char * _from, char * _to, int mode)
  {
!   const unsigned char *from = (const unsigned char *) _from;
!   unsigned char *to = (unsigned char *) _to;
    uint32_t left, right, work;
    uint32_t *keys;
  
***************
*** 632,639 ****
                     const char * _from,
                     char * _to, int mode)
  {
!   const unsigned char *from = _from;
!   unsigned char *to = _to;
    uint32_t left, right, work;
    uint32_t *keys;
  
--- 632,639 ----
                     const char * _from,
                     char * _to, int mode)
  {
!   const unsigned char *from = (const unsigned char *) _from;
!   unsigned char *to = (unsigned char *) _to;
    uint32_t left, right, work;
    uint32_t *keys;