diff options
| -rw-r--r-- | src/lib/os/os_file.go | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/src/lib/os/os_file.go b/src/lib/os/os_file.go index ee4deef72..2667a1e21 100644 --- a/src/lib/os/os_file.go +++ b/src/lib/os/os_file.go @@ -57,7 +57,10 @@ func (fd *FD) Read(b *[]byte) (ret int, err *Error) { if fd == nil { return -1, EINVAL } - r, e := syscall.read(fd.fd, &b[0], int64(len(b))); + var r, e int64; + if len(b) > 0 { // because we access b[0] + r, e = syscall.read(fd.fd, &b[0], int64(len(b))); + } return int(r), ErrnoToError(e) } @@ -65,7 +68,10 @@ func (fd *FD) Write(b *[]byte) (ret int, err *Error) { if fd == nil { return -1, EINVAL } - r, e := syscall.write(fd.fd, &b[0], int64(len(b))); + var r, e int64; + if len(b) > 0 { // because we access b[0] + r, e = syscall.write(fd.fd, &b[0], int64(len(b))); + } return int(r), ErrnoToError(e) } |