hookingread.c

#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include <dlfcn.h>

ssize_t read(int fd, void *buf, size_t count) {
    ssize_t (*orig_read)(int fd, void *buf, size_t count);
    ssize_t result;

    orig_read = dlsym(RTLD_NEXT, "read");

    result = orig_read(fd, buf, count);

    return result;
}