diff options
Diffstat (limited to 'lib')
-rw-r--r-- | lib/safe-write.h | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/lib/safe-write.h b/lib/safe-write.h index 25d1a4d48..ab1f45b4a 100644 --- a/lib/safe-write.h +++ b/lib/safe-write.h @@ -17,7 +17,9 @@ #include <stddef.h> +#define SAFE_WRITE_ERROR ((size_t) -1) + /* Write up to COUNT bytes at BUF to descriptor FD, retrying if interrupted. - Return the actual number of bytes written, zero for EOF, or (size_t) -1 - for an error. */ + Return the actual number of bytes written, zero for EOF, or SAFE_WRITE_ERROR + upon error. */ extern size_t safe_write (int fd, const void *buf, size_t count); |