extern char *sysroot_path (const char *path);
-extern int xwrite (int sock, const void *buf, size_t len);
-extern int xread (int sock, void *buf, size_t len);
+extern int xwrite (int sock, const void *buf, size_t len)
+ __attribute__((__warn_unused_result__));
+extern int xread (int sock, void *buf, size_t len)
+ __attribute__((__warn_unused_result__));
extern int add_string (char ***argv, int *size, int *alloc, const char *str);
extern int count_strings (char *const *argv);
* Note max write size if GUESTFS_MAX_CHUNK_SIZE.
*/
extern int send_file_write (const void *buf, int len);
-extern void send_file_end (int cancel);
+extern int send_file_end (int cancel);
/* only call this if there is a FileOut parameter */
extern void reply (xdrproc_t xdrp, char *ret);