#define SAFE_READ_ERROR ((size_t) -1)
/* Read up to COUNT bytes at BUF from descriptor FD, retrying if interrupted.
Return the actual number of bytes read, zero for EOF, or SAFE_READ_ERROR
upon error. */
extern size_t safe_read (int fd, void *buf, size_t count);
#define SAFE_READ_ERROR ((size_t) -1)
/* Read up to COUNT bytes at BUF from descriptor FD, retrying if interrupted.
Return the actual number of bytes read, zero for EOF, or SAFE_READ_ERROR
upon error. */
extern size_t safe_read (int fd, void *buf, size_t count);