diff options
author | Tom Gundersen <teg@jklm.no> | 2015-05-16 01:07:45 +0200 |
---|---|---|
committer | Sven Eden <yamakuzure@gmx.net> | 2017-03-14 09:57:15 +0100 |
commit | 6ec9b87c4ecf5144b5ea845a53a352dd9f2d173a (patch) | |
tree | 74fc8ed312d38c3f69b2914e5c99c9eef110008a /src/shared/util.c | |
parent | d2febf7f92eba0919773ce93d80df50fd3faeb5d (diff) |
util: loop_write - accept 0-length message
write() can send empty messages, so make sure loop_write() can do the same.
Diffstat (limited to 'src/shared/util.c')
-rw-r--r-- | src/shared/util.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/src/shared/util.c b/src/shared/util.c index d7a5b2094..d3dacfcfb 100644 --- a/src/shared/util.c +++ b/src/shared/util.c @@ -1665,7 +1665,7 @@ int loop_write(int fd, const void *buf, size_t nbytes, bool do_poll) { errno = 0; - while (nbytes > 0) { + do { ssize_t k; k = write(fd, p, nbytes); @@ -1685,12 +1685,12 @@ int loop_write(int fd, const void *buf, size_t nbytes, bool do_poll) { return -errno; } - if (k == 0) /* Can't really happen */ + if (nbytes > 0 && k == 0) /* Can't really happen */ return -EIO; p += k; nbytes -= k; - } + } while (nbytes > 0); return 0; } |