ftell « size « C File Q&A

1. C-programming ftell fseek fread, read size of a file    stackoverflow.com

I have a file. I read the size of file. Then I loop reading two bytes at a time until I get to the end of the file. After every read ...

2. Using fseek and ftell to determine the size of a file has a vulnerability?    stackoverflow.com

I've read posts that show how to use fseek and ftell to determine the size of a file.

FILE *fp;
long file_size;
char *buffer;

fp = fopen("foo.bin", "r");
if (NULL == fp) {
 /* Handle ...