Find and replace a text string in a binary file

[wey97]

I have code to read the file and print it out. I need to search for a string and replace it so I figured it would be better to do it in C++.

	unsigned char ch;
	int linecounter=0;
	FILE *in;
	in = fopen("myfile.bin","rb");
	if(ferror(in) ){
		perror("Error opening input file:");
		exit(1);
	}
	while (!feof(in) ){
		if(  fread(&ch,sizeof(ch),1,in) ==1){
			/* do stuff with the character you just read */
			printf("%c",ch);
			linecounter++;
			if ( !(linecounter%30) ) 
				printf("\n");
		}
	}
	fclose(in);

Can this be done in C++ to get the data in a string?