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Kernel: Begin fleshing out bind() syscall.

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This commit is contained in:
Andreas Kling 2019-02-14 14:38:30 +01:00
parent 2f35e54f80
commit 77177dbb76
7 changed files with 57 additions and 5 deletions
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28
Kernel/LocalSocket.cpp
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@ -1,6 +1,8 @@
#include <Kernel/LocalSocket.h>
#include <Kernel/UnixTypes.h>
#include <Kernel/Process.h>
#include <Kernel/VirtualFileSystem.h>
#include <LibC/errno_numbers.h>
RetainPtr<LocalSocket> LocalSocket::create(int type)
{
@ -17,3 +19,29 @@ LocalSocket::~LocalSocket()
{
}
bool LocalSocket::bind(const sockaddr* address, socklen_t address_size, int& error)
{
if (address_size != sizeof(sockaddr_un)) {
error = -EINVAL;
return false;
}
if (address->sa_family != AF_LOCAL) {
error = -EINVAL;
return false;
}
const sockaddr_un& local_address = *reinterpret_cast<const sockaddr_un*>(address);
char safe_address[sizeof(local_address.sun_path) + 1];
memcpy(safe_address, local_address.sun_path, sizeof(local_address.sun_path));
kprintf("%s(%u) LocalSocket{%p} bind(%s)\n", current->name().characters(), current->pid(), safe_address);
auto descriptor = VFS::the().open(safe_address, error, O_CREAT | O_EXCL, S_IFSOCK | 0666, *current->cwd_inode());
if (!descriptor) {
if (error == -EEXIST)
error = -EADDRINUSE;
return error;
}
return true;
}