kotovalexarian-likes-gitlab/sortix--sortix
1
0
Fork 0
mirror of https://gitlab.com/sortix/sortix.git synced 2023-02-13 20:55:38 -05:00
Code Releases Activity

Add dup3(2).

Browse source
This commit is contained in:
Jonas 'Sortie' Termansen 2013-09-23 20:41:31 +02:00
parent 9700623737
commit b399ece14b
7 changed files with 63 additions and 6 deletions
Download patch file Download diff file Expand all files Collapse all files

8
sortix/dtable.cpp
View file

@ -122,8 +122,10 @@ int DescriptorTable::Allocate(Ref<Descriptor> desc, int flags)
return i;
}
int DescriptorTable::Copy(int from, int to)
int DescriptorTable::Copy(int from, int to, int flags)
{
if ( flags & ~__FD_ALLOWED_FLAGS )
return errno = EINVAL, -1;
ScopedLock lock(&dtablelock);
if ( from < 0 || to < 0 )
return errno = EINVAL, -1;
@ -131,6 +133,8 @@ int DescriptorTable::Copy(int from, int to)
return errno = EBADF, -1;
if ( !entries[from].desc )
return errno = EBADF, -1;
if ( from == to )
return errno = EINVAL, -1;
while ( !(to < numentries) )
if ( !Enlargen(to+1) )
return -1;
@ -139,8 +143,8 @@ int DescriptorTable::Copy(int from, int to)
if ( entries[to].desc )
/* TODO: Should this be synced or otherwise properly closed? */{}
entries[to].desc = entries[from].desc;
entries[to].flags = entries[from].flags;
}
entries[to].flags = flags;
return to;
}