fxlibc/src/libc/stdio/fread.c

#include <stdio.h>
#include <string.h>
#include "fileutil.h"

size_t fread(void *data, size_t membsize, size_t nmemb, FILE *fp)
{
	size_t request_size;
	if(__builtin_umul_overflow(membsize, nmemb, &request_size)) {
		fp->error = 1;
		return 0;
	}

	ssize_t read_size = __fp_fread2(fp, data, request_size, -1);
	return (read_size < 0) ? 0 : read_size;
}