User:Remark/dec-flipbook.c - Revision history

The2Banned2One at 00:42, 8 September 2010

2010-09-07T22:42:33Z

← Older revision		Revision as of 02:42, 8 September 2010
Line 40:		Line 40:

	int len = fsize(f);		int len = fsize(f);
	char* buf = malloc(len);		//char* buf = malloc(len);
			char* buf = (char*) malloc(len);
	if(!buf)		if(!buf)
	{		{

Ludo6431 at 23:41, 15 August 2009

2009-08-15T21:41:36Z

← Older revision		Revision as of 01:41, 16 August 2009
Line 36:		Line 36:

	FILE* f = fopen(argv[1], "rb");		FILE* f = fopen(argv[1], "rb");
	if(f ~~== NULL~~)		if(!f)
	PERR("fopen");		PERR("fopen");

	int len = fsize(f);		int len = fsize(f);
	char* buf = malloc(len);		char* buf = malloc(len);
	if(buf ~~== NULL~~)		if(!buf)
			{
			fclose(f);
	PERR("malloc");		PERR("malloc");
			}

	if(fread(buf,len,1,f) != 1)		if(fread(buf,len,1,f) != 1)
			{
			fclose(f);
			free(buf);
	PERR("fread");		PERR("fread");
			}

	int i;		int i;
Line 54:		Line 61:

	FILE* fout = fopen(argv[2], "wb+");		FILE* fout = fopen(argv[2], "wb+");
	if(fout ~~== NULL~~)		if(!fout)
			{
			fclose(f);
			free(buf);
	PERR("fopen");		PERR("fopen");
			}

	if(fwrite(buf, len, 1, fout) != 1)		if(fwrite(buf, len, 1, fout) != 1)
			{
			fclose(f);
			free(buf);
			fclose(fout);
	PERR("fwrite");		PERR("fwrite");
			}

	free(buf);		free(buf);

Remark at 23:21, 15 August 2009

2009-08-15T21:21:29Z

← Older revision		Revision as of 01:21, 16 August 2009
Line 7:		Line 7:
	#include <stdlib.h>		#include <stdlib.h>

	~~// misses last 5 bytes atm~~
	char key [0x40] = {		char key [0x40] = {
	0xF7, 0x4C, 0x6A, 0x3A, 0xFB, 0x82, 0xA6, 0x37, 0x6E, 0x11, 0x38, 0xCF, 0xA0, 0xDD, 0x85, 0xC0,		0xF7, 0x4C, 0x6A, 0x3A, 0xFB, 0x82, 0xA6, 0x37, 0x6E, 0x11, 0x38, 0xCF, 0xA0, 0xDD, 0x85, 0xC0,

Remark at 23:01, 15 August 2009

2009-08-15T21:01:47Z

← Older revision		Revision as of 01:01, 16 August 2009
Line 12:		Line 12:
	0xC7, 0x9B, 0xC4, 0xD8, 0xDD, 0x28, 0x8A, 0x87, 0x53, 0x20, 0xEE, 0xE0, 0x0B, 0xEB, 0x43, 0xA0,		0xC7, 0x9B, 0xC4, 0xD8, 0xDD, 0x28, 0x8A, 0x87, 0x53, 0x20, 0xEE, 0xE0, 0x0B, 0xEB, 0x43, 0xA0,
	0xDB, 0x55, 0x0F, 0x75, 0x36, 0x37, 0xEB, 0x35, 0x6A, 0x34, 0x7F, 0xB5, 0x0F, 0x99, 0xF7, 0xEF,		0xDB, 0x55, 0x0F, 0x75, 0x36, 0x37, 0xEB, 0x35, 0x6A, 0x34, 0x7F, 0xB5, 0x0F, 0x99, 0xF7, 0xEF,
	0x43, 0x25, 0xCE, 0xA0, 0x29, 0x46, 0xD9, 0xD4, 0x4D, 0xBB, 0x04, ~~0x00~~, ~~0x00~~, ~~0x00~~, ~~0x00~~, ~~0x00~~		0x43, 0x25, 0xCE, 0xA0, 0x29, 0x46, 0xD9, 0xD4, 0x4D, 0xBB, 0x04, 0x66, 0x68, 0x08, 0xF1, 0xF8
	};		};

Remark: New page: // dec_flipbook // written by remark // thanks to steven & ludo #include #include // misses last 5 bytes atm char key [0x40] = { 0xF7, 0x4C, 0x6A, ...

2009-08-15T20:56:23Z

New page: <source lang="c"> // dec_flipbook // written by remark // thanks to steven & ludo #include <stdio.h> #include <stdlib.h> // misses last 5 bytes atm char key [0x40] = { 0xF7, 0x4C, 0x6A, ...

New page

<source lang="c">
// dec_flipbook
// written by remark
// thanks to steven & ludo

#include <stdio.h>
#include <stdlib.h>

// misses last 5 bytes atm
char key [0x40] = {
0xF7, 0x4C, 0x6A, 0x3A, 0xFB, 0x82, 0xA6, 0x37, 0x6E, 0x11, 0x38, 0xCF, 0xA0, 0xDD, 0x85, 0xC0,
0xC7, 0x9B, 0xC4, 0xD8, 0xDD, 0x28, 0x8A, 0x87, 0x53, 0x20, 0xEE, 0xE0, 0x0B, 0xEB, 0x43, 0xA0,
0xDB, 0x55, 0x0F, 0x75, 0x36, 0x37, 0xEB, 0x35, 0x6A, 0x34, 0x7F, 0xB5, 0x0F, 0x99, 0xF7, 0xEF,
0x43, 0x25, 0xCE, 0xA0, 0x29, 0x46, 0xD9, 0xD4, 0x4D, 0xBB, 0x04, 0x00, 0x00, 0x00, 0x00, 0x00
};

#define ERR(x ...) { printf(x); exit(1); }
#define PERR(x) { perror(x); exit(1); }

int fsize(FILE *f)
{
int pos = ftell (f);
fseek (f, 0, SEEK_END);
int end = ftell (f);
fseek (f, pos, SEEK_SET);
return end;
}

int main(int argc, char* argv[])
{
if(argc != 3)
{
printf("usage: %s <file_in> <file_out>\n", argv[0]);
return 0;
}

FILE* f = fopen(argv[1], "rb");
if(f == NULL)
PERR("fopen");

int len = fsize(f);
char* buf = malloc(len);
if(buf == NULL)
PERR("malloc");

if(fread(buf,len,1,f) != 1)
PERR("fread");

int i;
for(i=0; i<len; i++)
{
buf[i] ^= key[i%0x40];
}

FILE* fout = fopen(argv[2], "wb+");
if(fout == NULL)
PERR("fopen");

if(fwrite(buf, len, 1, fout) != 1)
PERR("fwrite");

free(buf);
fclose(f);
fclose(fout);

return 0;
}
</source>