mirror of
https://github.com/cheat-engine/cheat-engine
synced 2026-08-15 02:26:08 -04:00
103 lines
2.1 KiB
C
Executable file
103 lines
2.1 KiB
C
Executable file
/* this program will parse the vmm file and generate a vmminfo.dat file that will
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* contain the data needed for the memorymanager inside the vmm
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* It can also be used to grow the vmm.bin to include 0's */
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#include <stdio.h>
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#include <stdlib.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <unistd.h>
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#include <string.h>
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int main(void)
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{
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int errorcode=0;
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FILE *fpVMMMAP;
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FILE *fpVMMBIN;
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char temp[256000];
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fpVMMMAP=fopen("vmm.map","r");
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if (fpVMMMAP)
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{
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unsigned int startofbss;
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unsigned int sizeofbss;
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unsigned int memorylist=0;
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temp[0]=0;
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//find the line start starts with ".bss "
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while (strcmp(temp,".bss")!=0)
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fscanf(fpVMMMAP,"%s",temp);
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fscanf(fpVMMMAP,"%x",&startofbss);
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fscanf(fpVMMMAP,"%x",&sizeofbss);
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temp[0]=0;
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while (strcmp(temp,"memorylist")!=0)
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{
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memorylist=strtol(temp,NULL,16);
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fscanf(fpVMMMAP,"%s",(char *)&temp);
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}
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fclose(fpVMMMAP);
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if ((startofbss+sizeofbss) % 0x1000)
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{
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//add a little bit more for a nice page boundary
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int difference=(startofbss+sizeofbss+0x1000) % 0x1000;
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sizeofbss+=0x1000-difference;
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}
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printf("startofbss=%x\n",startofbss);
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printf("sizeofbss=%x\n",sizeofbss);
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printf("memorylist=%x\n",memorylist);
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fpVMMBIN=fopen("vmm.bin","r+");
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if (fpVMMBIN)
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{
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unsigned char *buf=calloc(1,sizeofbss);
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unsigned long long startoffreemem=startofbss+sizeofbss;
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int count;
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startoffreemem+=4096-(startoffreemem % 4096);
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printf("startoffreemem=%x\n",(int)startoffreemem);
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*(unsigned long long *)(&buf[memorylist-startofbss])=startoffreemem+0x7f00;
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//seek to the end
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printf("Seeking to %x\n",startofbss-0x00400000);
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if (fseek(fpVMMBIN,startofbss-0x00400000,SEEK_SET)!=-1)
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{
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if (count=fwrite(buf,sizeofbss,1,fpVMMBIN)<1)
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{
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printf("fwrite failed. Count=%d\n",count);
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errorcode=1;
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}
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}
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else
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{
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printf("Seek failed\n");
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errorcode=1;
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}
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fclose(fpVMMBIN);
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free(buf);
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}
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else
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{
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printf("Failed opening vmm.bin\n");
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errorcode=1;
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}
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}
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else
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{
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printf("Failed opening vmm.map\n");
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errorcode=1;
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}
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return errorcode;
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}
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