16 static ssize_t cookie_read(void *cookie, char *buf, size_t size) {  in cookie_read()  argument
17   assert((uintptr_t)cookie == kMagicCookie);  in cookie_read()
22 static ssize_t cookie_write(void *cookie, const char *buf, size_t size) {  in cookie_write()  argument
23   assert((uintptr_t)cookie == kMagicCookie);  in cookie_write()
28 static int cookie_seek(void *cookie, off64_t *offset, int whence) {  in cookie_seek()  argument
29   assert((uintptr_t)cookie == kMagicCookie);  in cookie_seek()
34 static int cookie_close(void *cookie) {  in cookie_close()  argument
35   assert((uintptr_t)cookie == kMagicCookie);  in cookie_close()
49   void *cookie = (void *)kMagicCookie;  in main()  local
50   FILE *f = fopencookie(cookie, "rw",  in main()
60   f = fopencookie(cookie, "rw", {nullptr, nullptr, nullptr, nullptr});  in main()