diff options
| -rw-r--r-- | netfs/daemon/daemonFile.cpp | 18 |
1 files changed, 10 insertions, 8 deletions
diff --git a/netfs/daemon/daemonFile.cpp b/netfs/daemon/daemonFile.cpp index fb146a4..cf34b7d 100644 --- a/netfs/daemon/daemonFile.cpp +++ b/netfs/daemon/daemonFile.cpp @@ -44,14 +44,16 @@ NetFS::Buffer FileServer::read(Ice::Long offset, Ice::Long size, const Ice::Current &) { NetFS::Buffer buf; - buf.resize(safe {size}); - errno = 0; - auto r = pread(fd, &buf[0], safe {size}, offset); - if (r == -1) { - throw NetFS::SystemError(errno); - } - else if (std::cmp_not_equal(r, size)) { - buf.resize(safe {r}); + if (size) { + buf.resize(safe {size}); + errno = 0; + auto r = pread(fd, buf.data(), safe {size}, offset); + if (r == -1) { + throw NetFS::SystemError(errno); + } + else if (std::cmp_not_equal(r, size)) { + buf.resize(safe {r}); + } } return buf; } |