1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/os/ossrv/ssl/libcrypto/src/crypto/comp/c_rle.c Fri Jun 15 03:10:57 2012 +0200
1.3 @@ -0,0 +1,111 @@
1.4 +/*
1.5 +Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). All rights reserved.
1.6 +
1.7 +Redistribution and use in source and binary forms, with or without
1.8 +modification, are permitted provided that the following conditions are met:
1.9 +
1.10 +* Redistributions of source code must retain the above copyright notice, this
1.11 + list of conditions and the following disclaimer.
1.12 +* Redistributions in binary form must reproduce the above copyright notice,
1.13 + this list of conditions and the following disclaimer in the documentation
1.14 + and/or other materials provided with the distribution.
1.15 +* Neither the name of Nokia Corporation nor the names of its contributors
1.16 + may be used to endorse or promote products derived from this software
1.17 + without specific prior written permission.
1.18 +
1.19 +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
1.20 +AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
1.21 +IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
1.22 +DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
1.23 +FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
1.24 +DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
1.25 +SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
1.26 +CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
1.27 +OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
1.28 +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
1.29 +
1.30 +Description:
1.31 +*/
1.32 +
1.33 +
1.34 +#include <stdio.h>
1.35 +#include <stdlib.h>
1.36 +#include <string.h>
1.37 +#include <openssl/objects.h>
1.38 +#include <openssl/comp.h>
1.39 +#if (defined(SYMBIAN) && (defined(__WINSCW__) || defined(__WINS__)))
1.40 +#include "libcrypto_wsd_macros.h"
1.41 +#include "libcrypto_wsd.h"
1.42 +#endif
1.43 +
1.44 +static int rle_compress_block(COMP_CTX *ctx, unsigned char *out,
1.45 + unsigned int olen, unsigned char *in, unsigned int ilen);
1.46 +static int rle_expand_block(COMP_CTX *ctx, unsigned char *out,
1.47 + unsigned int olen, unsigned char *in, unsigned int ilen);
1.48 +
1.49 +#ifndef EMULATOR
1.50 +static COMP_METHOD rle_method={
1.51 + NID_rle_compression,
1.52 + LN_rle_compression,
1.53 + NULL,
1.54 + NULL,
1.55 + rle_compress_block,
1.56 + rle_expand_block,
1.57 + NULL,
1.58 + NULL,
1.59 + };
1.60 +#else
1.61 + GET_STATIC_VAR_FROM_TLS(rle_method,c_rle,COMP_METHOD)
1.62 + #define rle_method (*GET_WSD_VAR_NAME(rle_method,c_rle,s)())
1.63 + const COMP_METHOD temp_s_rle_method={
1.64 + NID_rle_compression,
1.65 + LN_rle_compression,
1.66 + NULL,
1.67 + NULL,
1.68 + rle_compress_block,
1.69 + rle_expand_block,
1.70 + NULL,
1.71 + NULL,
1.72 + };
1.73 +#endif
1.74 +
1.75 +EXPORT_C COMP_METHOD *COMP_rle(void)
1.76 + {
1.77 + return(&rle_method);
1.78 + }
1.79 +
1.80 +static int rle_compress_block(COMP_CTX *ctx, unsigned char *out,
1.81 + unsigned int olen, unsigned char *in, unsigned int ilen)
1.82 + {
1.83 + /* int i; */
1.84 +
1.85 + if (olen < (ilen+1))
1.86 + {
1.87 + /* ZZZZZZZZZZZZZZZZZZZZZZ */
1.88 + return(-1);
1.89 + }
1.90 +
1.91 + *(out++)=0;
1.92 + memcpy(out,in,ilen);
1.93 + return(ilen+1);
1.94 + }
1.95 +
1.96 +static int rle_expand_block(COMP_CTX *ctx, unsigned char *out,
1.97 + unsigned int olen, unsigned char *in, unsigned int ilen)
1.98 + {
1.99 + int i;
1.100 +
1.101 + if (olen < (ilen-1))
1.102 + {
1.103 + /* ZZZZZZZZZZZZZZZZZZZZZZ */
1.104 + return(-1);
1.105 + }
1.106 +
1.107 + i= *(in++);
1.108 + if (i == 0)
1.109 + {
1.110 + memcpy(out,in,ilen-1);
1.111 + }
1.112 + return(ilen-1);
1.113 + }
1.114 +