57 lines
971 B
C
57 lines
971 B
C
// patch GetTickCount64 for running on Windows XP
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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int main(int argc, char** argv) {
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unsigned char* buf;
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FILE* f=fopen(argv[1],"rb");
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if (f==NULL) {
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perror("open");
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return 1;
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}
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fseek(f,0,SEEK_END);
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size_t size=ftell(f);
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buf=malloc(size);
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fseek(f,0,SEEK_SET);
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fread(buf,1,size,f);
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fclose(f);
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// patch
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size_t remain=size;
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unsigned char* buf1=buf;
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while (size>=14) {
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unsigned char* where=memchr(buf1,'G',remain);
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if (where==NULL) {
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printf("GetTickCount64 not found\n");
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break;
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}
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if (memcmp(where,"GetTickCount64",14)==0) {
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printf("found GetTickCount64 - patching...\n");
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where[12]=0;
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where[13]=0;
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break;
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}
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buf1=where+1;
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remain=size-(buf1-buf);
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}
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// write
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FILE* of=fopen(argv[1],"wb");
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if (f==NULL) {
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perror("open write");
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return 1;
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}
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fwrite(buf,1,size,of);
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fclose(of);
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return 0;
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}
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