ViaThinkSoft CodeLib
Dieser Artikel befindet sich in der Kategorie:
CodeLib → Programmierhilfen → C / C++
int binary_replace_file(const char* filename, unsigned int search, unsigned int replace) {
unsigned int srecord = 0;
int found = 0;
FILE* fptr = fopen(filename, "rb+");
if (fptr == NULL) return -1;
while ((fread(&srecord, sizeof(srecord), 1, fptr) == 1))
{
if (srecord == search) {
srecord = replace;
fseek(fptr, -1*(long)sizeof(srecord), SEEK_CUR);
fwrite(&srecord, (int)sizeof(srecord), 1, fptr);
fseek(fptr, 0, SEEK_CUR); // important!
found++;
}
else {
fseek(fptr, -1*(long)(sizeof(srecord) - 1), SEEK_CUR);
}
}
fclose(fptr);
return found;
}Daniel Marschall
ViaThinkSoft Mitbegründer
ViaThinkSoft Mitbegründer