mirror of
https://github.com/mpv-player/mpv
synced 2024-12-29 10:32:15 +00:00
e1309e782b
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@2358 b3059339-0415-0410-9bf9-f77b7e298cf2
55 lines
1.5 KiB
C
55 lines
1.5 KiB
C
/*
|
|
bios2dump.c - Was designed to extract BIOS of your PC and save it to file.
|
|
Usage: as argument requires DOS interrupt number in hexadecimal form.
|
|
as output - will write 64KB file which will named: SSSS_OOOO.intXX
|
|
where: SSSS - segment of BIOS interrupt handler
|
|
OOOO - offset of BIOS interrupt handler
|
|
XX - interrupt number which was passed as argument
|
|
Licence: GNU GPL v2
|
|
Copyright: Nick Kurshev <nickols_k@mail.ru>
|
|
*/
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
|
|
int main( int argc, char *argv[])
|
|
{
|
|
FILE * fd_mem, *fd_out;
|
|
unsigned short int_seg,int_off;
|
|
unsigned long bios_off;
|
|
int int_no;
|
|
size_t i;
|
|
char outname[80];
|
|
unsigned char ch;
|
|
if(argc < 2)
|
|
{
|
|
printf("Usage: %s int_no(in hex)\n",argv[0]);
|
|
return EXIT_FAILURE;
|
|
}
|
|
int_no = strtol(argv[1],NULL,16);
|
|
if(!(fd_mem = fopen("/dev/mem","rb")))
|
|
{
|
|
perror("Can't open file - /dev/mem");
|
|
return EXIT_FAILURE;
|
|
}
|
|
fseek(fd_mem,int_no*4,SEEK_SET);
|
|
fread(&int_off,sizeof(unsigned short),1,fd_mem);
|
|
fread(&int_seg,sizeof(unsigned short),1,fd_mem);
|
|
sprintf(outname,"%04X_%04X.int%02X",int_seg,int_off,int_no);
|
|
if(!(fd_out = fopen(outname,"wb")))
|
|
{
|
|
perror("Can't open output file");
|
|
fclose(fd_mem);
|
|
return EXIT_FAILURE;
|
|
}
|
|
bios_off = (int_seg << 4) + int_off;
|
|
bios_off &= 0xf0000;
|
|
fseek(fd_mem,bios_off,SEEK_SET);
|
|
for(i=0;i<0x10000;i++)
|
|
{
|
|
fread(&ch,1,1,fd_mem);
|
|
fwrite(&ch,1,1,fd_out);
|
|
}
|
|
fclose(fd_out);
|
|
fclose(fd_mem);
|
|
return EXIT_SUCCESS;
|
|
} |