Kernel: "Succeed" quietly for zero-length read() and write().

This commit is contained in:
Andreas Kling 2019-04-27 16:17:24 +02:00
commit 679ac386eb
Notes: sideshowbarker 2024-07-19 14:34:30 +09:00

View file

@ -822,6 +822,8 @@ ssize_t Process::sys$write(int fd, const byte* data, ssize_t size)
{
if (size < 0)
return -EINVAL;
if (size == 0)
return 0;
if (!validate_read(data, size))
return -EFAULT;
#ifdef DEBUG_IO
@ -876,6 +878,8 @@ ssize_t Process::sys$read(int fd, byte* buffer, ssize_t size)
{
if (size < 0)
return -EINVAL;
if (size == 0)
return 0;
if (!validate_write(buffer, size))
return -EFAULT;
#ifdef DEBUG_IO