dimaryaz · August 15, 2018 07:28 · otherguy · Apr 23, 2020
diff --git a/dropbox_ext4.c b/dropbox_ext4.c
 /*
 * dropbox_ext4.c
 *
 * Compile like this:
 *   gcc -shared -fPIC -ldl -o libdropbox_ext4.so dropbox_ext4.c
 *
 * Run Dropbox like this:
 *   LD_PRELOAD=./libdropbox_ext4.so ~/.dropbox-dist/dropboxd
 */
 
 #define _GNU_SOURCE
 
 #include <stdlib.h>
 #include <sys/vfs.h>
 #include <linux/magic.h>
 #include <dlfcn.h>
 
 int (*orig_statfs)(const char *path, struct statfs64 *buf) = NULL;
 
 int statfs64(const char *path, struct statfs64 *buf) {
  if (orig_statfs == NULL) {
    orig_statfs = dlsym(RTLD_NEXT, "statfs64");
  }
  int retval = orig_statfs(path, buf);
  if (retval == 0) {
    buf->f_type = EXT4_SUPER_MAGIC;
  }
  return retval;
 }
	/*
	* dropbox_ext4.c
	*
	* Compile like this:
	* gcc -shared -fPIC -ldl -o libdropbox_ext4.so dropbox_ext4.c
	*
	* Run Dropbox like this:
	* LD_PRELOAD=./libdropbox_ext4.so ~/.dropbox-dist/dropboxd
	*/

	#define _GNU_SOURCE

	#include <stdlib.h>
	#include <sys/vfs.h>
	#include <linux/magic.h>
	#include <dlfcn.h>

	int (orig_statfs)(const char path, struct statfs64 *buf) = NULL;

	int statfs64(const char path, struct statfs64 buf) {
	if (orig_statfs == NULL) {
	orig_statfs = dlsym(RTLD_NEXT, "statfs64");
	}
	int retval = orig_statfs(path, buf);
	if (retval == 0) {
	buf->f_type = EXT4_SUPER_MAGIC;
	}
	return retval;
	}