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process.c
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process.c
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/*
* process.c
* This file is part of str2hex project.
*
* Copyright 2005 Dzmitry Plashchynski <plashchynski@gmail.com>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "main.h"
#include "process.h"
#include "md5.h"
#include "b64.h"
char *process(unsigned char *buf, size_t *out_size, size_t len, struct _config *config, int mode)
{
static int gcount = 0;
register int i = 0;
char *out_buffer = NULL;
static int ide=0;
gcount++;
/* Base64 */
if (config->mode == 7)
{
static base64_state_t b64_state;
if (gcount == 1)
base64_init(&b64_state);
if (mode)
out_buffer = base64_append(&b64_state, (char*) buf, len, out_size, 1);
else
out_buffer = base64_append(&b64_state, (char*) buf, len, out_size, 0);
return out_buffer;
}
/* Base10 number to Base16 numbers */
if (config->mode == 10) /* -n and -no options */
{
int num = atoi((char*)buf);
switch (config->mode2)
{
case 1: /* -n and -no options */
out_buffer = malloc(strlen((char*)buf) * 2); /* -no options */
*out_size += sprintf(out_buffer+*out_size,"%o", num);
break;
default:
out_buffer = malloc(strlen((char*)buf) * 2); /* -n options */
*out_size += sprintf(out_buffer+*out_size,"%x", num);
break;
}
return out_buffer;
}
#ifdef md5_INCLUDED
/* MD5 */
if (config->mode == 11)
{
// MD5 state structure
static md5_state_t md5_state;
static int md5_mode = 0;
static md5_byte_t digest[16];
if (!md5_mode) /* first time true */
{
md5_init(&md5_state);
mode = 1;
}
md5_append(&md5_state, (unsigned char*) buf, len);
if (mode) /* true at the end of computation */
{
out_buffer = malloc(sizeof(digest)*2+sizeof(char));
md5_finish(&md5_state, digest);
int wrote=0;
/* write binary hash in hex format */
for (i = 0; i < 16; ++i)
wrote += sprintf(out_buffer+wrote,"%02x", digest[i]);
/* size of the result */
*out_size = wrote;
return out_buffer;
}
return NULL;
}
#else
if (config->mode == 11)
{
exit_error("MD5 encoding has been disabled on compilation time.");
return NULL;
}
#endif
int alloc_size = len;
int calc_alloc = 0;
out_buffer = malloc(alloc_size *= 2);
calc_alloc = alloc_size / 5 * 4; /* 4/5 of the allocated memspace */
/* char convertion alhoritm */
for (i=0; i < len; i++)
{
if (*out_size > calc_alloc) /* if used 4/5 of the allocated memspace */
{
alloc_size += calc_alloc/4; /* increase 1/5 of the allocated memspace */
out_buffer = realloc(out_buffer, alloc_size);
calc_alloc = alloc_size / 5 * 4; /* 4/5 of the allocated memspace */
}
/* include and exclude chars */
if (config->exclude_symbols_size)
if (memchr(config->exclude_symbols, buf[i],
config->exclude_symbols_size))
continue;
if (config->include_symbols_size)
if (!memchr(config->include_symbols, buf[i],
config->include_symbols_size))
{
*out_size += sprintf(out_buffer+*out_size, "%c", buf[i]);
continue;
}
/* Sort by CR. */
if (config->nlign)
{
#ifdef WIN32
if ((buf[i] == '\n' && buf[i+1] == '\r') || (buf[i] == '\r' && buf[i+1] == '\n') )
#else
if (buf[i] == '\n')
#endif
{
#ifdef WIN32
*out_size+=sprintf(out_buffer+*out_size,"\r\n");
#else
*out_size+=sprintf(out_buffer+*out_size,"\n");
#endif
continue;
}
}
/* Primary convertion method analys */
switch(config->mode)
{
/* Plain hex style convertion */
case 9:
*out_size += sprintf(out_buffer+*out_size,"%02x",buf[i]);
break;
/* AT&T asm style convertion */
case 1:
if (i)
switch (config->mode2)
{
case 1:
*out_size += sprintf(out_buffer+*out_size," 0x%02x", buf[i]);
break;
case 2:
*out_size += sprintf(out_buffer+*out_size,"0x%02x", buf[i]);
break;
default:
*out_size += sprintf(out_buffer+*out_size,", 0x%02x", buf[i]);
}
else
*out_size += sprintf(out_buffer+*out_size,"0x%02x", buf[i]);
break;
/* Microsoft assembler hex style */
case 2:
if (i)
switch (config->mode2)
{
case 1:
*out_size += sprintf(out_buffer+*out_size," %02xh", buf[i]);
break;
case 2:
*out_size += sprintf(out_buffer+*out_size,"%02xh", buf[i]);
break;
default:
*out_size += sprintf(out_buffer+*out_size,", %02xh", buf[i]);
}
else
*out_size += sprintf(out_buffer+*out_size,"%02xh", buf[i]);
break;
/* MySQL Style convertion */
case 3:
switch(config->mode2)
{
case 1:
if (ide)
{
if (i == len-1)
*out_size += sprintf(out_buffer+*out_size,",%02x)", buf[i]);
else
*out_size += sprintf(out_buffer+*out_size,",%02x", buf[i]);
} else
*out_size += sprintf(out_buffer+*out_size,"CHAR(%02x", buf[i]);
ide++;
break;
default:
if (ide)
*out_size += sprintf(out_buffer+*out_size,"%02x", buf[i]);
else
*out_size += sprintf(out_buffer+*out_size,"0x%02x", buf[i]);
ide++;
}
break;
/* URL format */
case 4:
*out_size += sprintf(out_buffer+*out_size,"%%%02x",buf[i]);
break;
/* HTML Style char convertion */
case 5:
switch (config->mode2)
{
case 1: // as HTML escape codes: ¡x©...
switch (buf[i])
{
case 0x20:
*out_size += sprintf(out_buffer+*out_size, " ");
break;
case 0x22:
*out_size += sprintf(out_buffer+*out_size, """);
break;
case 0x26:
*out_size += sprintf(out_buffer+*out_size, "&");
break;
case 0x2F:
*out_size += sprintf(out_buffer+*out_size, "⁄");
break;
case 0x3C:
*out_size += sprintf(out_buffer+*out_size, "<");
break;
case 0x3E:
*out_size += sprintf(out_buffer+*out_size, "&qt;");
break;
case 0x89:
*out_size += sprintf(out_buffer+*out_size, "‰");
break;
case 0x8B:
*out_size += sprintf(out_buffer+*out_size, "‹");
break;
case 0x96:
*out_size += sprintf(out_buffer+*out_size, "–");
break;
case 0x97:
*out_size += sprintf(out_buffer+*out_size, "—");
break;
case 0x99:
*out_size += sprintf(out_buffer+*out_size, "™");
break;
case 0x9B:
*out_size += sprintf(out_buffer+*out_size, "›");
break;
case 0xA1:
*out_size += sprintf(out_buffer+*out_size, "¡");
break;
case 0xA2:
*out_size += sprintf(out_buffer+*out_size, "¢");
break;
case 0xA3:
*out_size += sprintf(out_buffer+*out_size, "£");
break;
case 0xA4:
*out_size += sprintf(out_buffer+*out_size, "¤");
break;
case 0xA5:
*out_size += sprintf(out_buffer+*out_size, "¥");
break;
case 0xA6:
*out_size += sprintf(out_buffer+*out_size, "¦");
break;
case 0xA7:
*out_size += sprintf(out_buffer+*out_size, "§");
break;
case 0xA8:
*out_size += sprintf(out_buffer+*out_size, "¨");
break;
case 0xA9:
*out_size += sprintf(out_buffer+*out_size, "¥");
break;
case 0xAA:
*out_size += sprintf(out_buffer+*out_size, "ª");
break;
case 0xAB:
*out_size += sprintf(out_buffer+*out_size, "«");
break;
case 0xAC:
*out_size += sprintf(out_buffer+*out_size, "¬");
break;
case 0xAD:
*out_size += sprintf(out_buffer+*out_size, "­");
break;
case 0xAE:
*out_size += sprintf(out_buffer+*out_size, "®");
break;
case 0xAF:
*out_size += sprintf(out_buffer+*out_size, "¯");
break;
case 0xB0:
*out_size += sprintf(out_buffer+*out_size, "°");
break;
case 0xB1:
*out_size += sprintf(out_buffer+*out_size, "±");
break;
case 0xB2:
*out_size += sprintf(out_buffer+*out_size, "²");
break;
case 0xB3:
*out_size += sprintf(out_buffer+*out_size, "³");
break;
case 0xB4:
*out_size += sprintf(out_buffer+*out_size, "´");
break;
case 0xB5:
*out_size += sprintf(out_buffer+*out_size, "µ");
break;
case 0xB6:
*out_size += sprintf(out_buffer+*out_size, "¶");
break;
case 0xB7:
*out_size += sprintf(out_buffer+*out_size, "·");
break;
case 0xB8:
*out_size += sprintf(out_buffer+*out_size, "¸");
break;
case 0xB9:
*out_size += sprintf(out_buffer+*out_size, "¹");
break;
case 0xBA:
*out_size += sprintf(out_buffer+*out_size, "º");
break;
case 0xBB:
*out_size += sprintf(out_buffer+*out_size, "»");
break;
case 0xBC:
*out_size += sprintf(out_buffer+*out_size, "¼");
break;
case 0xBD:
*out_size += sprintf(out_buffer+*out_size, "½");
break;
case 0xBE:
*out_size += sprintf(out_buffer+*out_size, "¾");
break;
case 0xBF:
*out_size += sprintf(out_buffer+*out_size, "¿");
break;
case 0xC0:
*out_size += sprintf(out_buffer+*out_size, "à");
break;
case 0xC1:
*out_size += sprintf(out_buffer+*out_size, "Á");
break;
case 0xC2:
*out_size += sprintf(out_buffer+*out_size, "Â");
break;
case 0xC3:
*out_size += sprintf(out_buffer+*out_size, "Ã");
break;
case 0xC4:
*out_size += sprintf(out_buffer+*out_size, "Ä");
break;
case 0xC5:
*out_size += sprintf(out_buffer+*out_size, "Å");
break;
case 0xC6:
*out_size += sprintf(out_buffer+*out_size, "Æ");
break;
case 0xC7:
*out_size += sprintf(out_buffer+*out_size, "Ç");
break;
case 0xC8:
*out_size += sprintf(out_buffer+*out_size, "È");
break;
case 0xC9:
*out_size += sprintf(out_buffer+*out_size, "É");
break;
case 0xCA:
*out_size += sprintf(out_buffer+*out_size, "Ê");
break;
case 0xCB:
*out_size += sprintf(out_buffer+*out_size, "Ë");
break;
case 0xCC:
*out_size += sprintf(out_buffer+*out_size, "Ì");
break;
case 0xCD:
*out_size += sprintf(out_buffer+*out_size, "Í");
break;
case 0xCE:
*out_size += sprintf(out_buffer+*out_size, "Î");
break;
case 0xCF:
*out_size += sprintf(out_buffer+*out_size, "Ï");
break;
case 0xD0:
*out_size += sprintf(out_buffer+*out_size, "Ð");
break;
case 0xD1:
*out_size += sprintf(out_buffer+*out_size, "Ñ");
break;
case 0xD2:
*out_size += sprintf(out_buffer+*out_size, "Ò");
break;
case 0xD3:
*out_size += sprintf(out_buffer+*out_size, "Ó");
break;
case 0xD4:
*out_size += sprintf(out_buffer+*out_size, "Ô");
break;
case 0xD5:
*out_size += sprintf(out_buffer+*out_size, "Õ");
break;
case 0xD6:
*out_size += sprintf(out_buffer+*out_size, "Ö");
break;
case 0xD7:
*out_size += sprintf(out_buffer+*out_size, "×");
break;
case 0xD8:
*out_size += sprintf(out_buffer+*out_size, "Ø");
break;
case 0xD9:
*out_size += sprintf(out_buffer+*out_size, "Ù");
break;
case 0xDA:
*out_size += sprintf(out_buffer+*out_size, "Ú");
break;
case 0xDB:
*out_size += sprintf(out_buffer+*out_size, "Û");
break;
case 0xDC:
*out_size += sprintf(out_buffer+*out_size, "Ü");
break;
case 0xDD:
*out_size += sprintf(out_buffer+*out_size, "Ý");
break;
case 0xDE:
*out_size += sprintf(out_buffer+*out_size, "Þ");
break;
case 0xDF:
*out_size += sprintf(out_buffer+*out_size, "ß");
break;
case 0xE0:
*out_size += sprintf(out_buffer+*out_size, "à");
break;
case 0xE1:
*out_size += sprintf(out_buffer+*out_size, "á");
break;
case 0xE2:
*out_size += sprintf(out_buffer+*out_size, "â");
break;
case 0xE3:
*out_size += sprintf(out_buffer+*out_size, "ã");
break;
case 0xE4:
*out_size += sprintf(out_buffer+*out_size, "ä");
break;
case 0xE5:
*out_size += sprintf(out_buffer+*out_size, "å");
break;
case 0xE6:
*out_size += sprintf(out_buffer+*out_size, "æ");
break;
case 0xE7:
*out_size += sprintf(out_buffer+*out_size, "ç");
break;
case 0xE8:
*out_size += sprintf(out_buffer+*out_size, "è");
break;
case 0xE9:
*out_size += sprintf(out_buffer+*out_size, "é");
break;
case 0xEA:
*out_size += sprintf(out_buffer+*out_size, "ê");
break;
case 0xEB:
*out_size += sprintf(out_buffer+*out_size, "ë");
break;
case 0xEC:
*out_size += sprintf(out_buffer+*out_size, "ì");
break;
case 0xED:
*out_size += sprintf(out_buffer+*out_size, "í");
break;
case 0xEE:
*out_size += sprintf(out_buffer+*out_size, "î");
break;
case 0xEF:
*out_size += sprintf(out_buffer+*out_size, "ï");
break;
case 0xF0:
*out_size += sprintf(out_buffer+*out_size, "ð");
break;
case 0xF1:
*out_size += sprintf(out_buffer+*out_size, "ñ");
break;
case 0xF2:
*out_size += sprintf(out_buffer+*out_size, "ò");
break;
case 0xF3:
*out_size += sprintf(out_buffer+*out_size, "ó");
break;
case 0xF4:
*out_size += sprintf(out_buffer+*out_size, "ô");
break;
case 0xF5:
*out_size += sprintf(out_buffer+*out_size, "õ");
break;
case 0xF6:
*out_size += sprintf(out_buffer+*out_size, "ö");
break;
case 0xF7:
*out_size += sprintf(out_buffer+*out_size, "÷");
break;
case 0xF8:
*out_size += sprintf(out_buffer+*out_size, "ø");
break;
case 0xF9:
*out_size += sprintf(out_buffer+*out_size, "ù");
break;
case 0xFA:
*out_size += sprintf(out_buffer+*out_size, "ú");
break;
case 0xFB:
*out_size += sprintf(out_buffer+*out_size, "û");
break;
case 0xFC:
*out_size += sprintf(out_buffer+*out_size, "ü");
break;
case 0xFD:
*out_size += sprintf(out_buffer+*out_size, "ý");
break;
case 0xFE:
*out_size += sprintf(out_buffer+*out_size, "þ");
break;
case 0xFF:
*out_size += sprintf(out_buffer+*out_size, "ÿ");
break;
default:
*out_size += sprintf(out_buffer+*out_size,"&#%d;",buf[i]);
}
break;
case 2:
*out_size += sprintf(out_buffer+*out_size,"&#%d",buf[i]);
break;
default:
*out_size += sprintf(out_buffer+*out_size,"&#x%x",buf[i]); /* HTML hex-format */
}
break;
/* C-style char convertion */
case 8:
switch (config->mode2)
{
case 1:
case 2:
switch (buf[i])
{
case '\n':
*out_size += sprintf(out_buffer+*out_size, "\\n");
break;
case '"':
*out_size += sprintf(out_buffer+*out_size, "\\\"");
break;
case '\'':
*out_size += sprintf(out_buffer+*out_size, "\\\'");
break;
case '%':
*out_size += sprintf(out_buffer+*out_size, "%%");
break;
case '\\' :
*out_size += sprintf(out_buffer+*out_size, "\\\\");
break;
case '\t':
*out_size += sprintf(out_buffer+*out_size, "\\t");
break;
case '\v':
*out_size += sprintf(out_buffer+*out_size, "\\v");
break;
case '\b':
*out_size += sprintf(out_buffer+*out_size, "\\b");
break;
case '\r':
*out_size += sprintf(out_buffer+*out_size, "\\r");
break;
case '\f':
*out_size += sprintf(out_buffer+*out_size, "\\f");
break;
case '\a':
*out_size += sprintf(out_buffer+*out_size, "\\a");
break;
default:
if (config->mode2 == 1)
*out_size += sprintf(out_buffer+*out_size,"\\%o",buf[i]);
else
*out_size += sprintf(out_buffer+*out_size, "%c", buf[i]);
}
break;
case 3:
*out_size += sprintf(out_buffer+*out_size,"\\x%x",buf[i]);
break;
default:
*out_size += sprintf(out_buffer+*out_size,"\\%o",buf[i]);
}
break;
default:
*out_size += sprintf(out_buffer+*out_size,"%02x", buf[i]);
}
}
return out_buffer;
}