diff --git a/sys/init_sysent.pas b/sys/init_sysent.pas
index e7863d1d..206ddfbf 100644
--- a/sys/init_sysent.pas
+++ b/sys/init_sysent.pas
@@ -564,7 +564,7 @@ var
   ),
   (//[101]
      sy_narg:2;
-     sy_call:nil;
+     sy_call:@sys_netabort;
      sy_name:'sys_netabort'
   ),
   (//[102]
diff --git a/sys/kern/uipc_syscalls.pas b/sys/kern/uipc_syscalls.pas
index 7fb6bd08..a952a65b 100644
--- a/sys/kern/uipc_syscalls.pas
+++ b/sys/kern/uipc_syscalls.pas
@@ -5,14 +5,15 @@ unit uipc_syscalls;
 
 interface
 
-function sys_socket(domain,stype,protocol:Integer):Integer;
-function sys_socketex(name:pchar;domain,stype,protocol:Integer):Integer;
+function sys_socket     (domain,stype,protocol:Integer):Integer;
+function sys_socketex   (name:pchar;domain,stype,protocol:Integer):Integer;
 function sys_socketclose(fd:Integer):Integer;
-function sys_bind(s:Integer;name:Pointer;namelen:Integer):Integer;
-function sys_listen(s,backlog:Integer):Integer;
-function sys_accept(s:Integer;aname,anamelen:Pointer):Integer;
-function sys_connect(fd:Integer;name:Pointer;namelen:Integer):Integer;
-function sys_setsockopt(s,level,name:Integer;val:Pointer;valsize:Integer):Integer;
+function sys_bind       (s:Integer;name:Pointer;namelen:Integer):Integer;
+function sys_listen     (s,backlog:Integer):Integer;
+function sys_accept     (s:Integer;aname,anamelen:Pointer):Integer;
+function sys_connect    (fd:Integer;name:Pointer;namelen:Integer):Integer;
+function sys_setsockopt (s,level,name:Integer;val:Pointer;valsize:Integer):Integer;
+function sys_netabort   (fd,flags:Integer):Integer;
 
 implementation
 
@@ -608,6 +609,34 @@ begin
  Result:=kern_setsockopt(s,level,name,val,UIO_USERSPACE,valsize);
 end;
 
+const
+ SOCKET_ABORT_FLAG_RCV      =$00000001;
+ SOCKET_ABORT_FLAG_SND      =$00000002;
+ SOCKET_ABORT_FLAG_SND_AGAIN=$00000004;
+
+function sys_netabort(fd,flags:Integer):Integer;
+var
+ error:Integer;
+ fp:p_file;
+begin
+
+ if ((flags and $1000000)=0) then
+ begin
+  error:=getsock_cap(fd, flags, @fp, nil);
+  if (error=0) then
+  begin
+   //error:=bnet_netabort(td,fp->f_data,flags);
+   fdrop(fp);
+  end;
+ end else
+ begin
+  flags:=flags and $feffffff;
+  error:=0;
+  //error:=kern_epollabort(td,fd,flags);
+ end;
+
+ Exit(error);
+end;
 
 end.
 
diff --git a/sys/syscalls.pas b/sys/syscalls.pas
index a5e22d2d..0cef1525 100644
--- a/sys/syscalls.pas
+++ b/sys/syscalls.pas
@@ -65,6 +65,7 @@ function  socket(domain,stype,protocol:Integer):Integer;
 function  _connect(fd:Integer;name:Pointer;namelen:Integer):Integer;
 function  __sys_netcontrol(fd,op:Integer;buf:Pointer;nbuf:DWORD):Integer;
 function  getpriority(which,who:Integer):Integer;
+function  __sys_netabort(fd,flags:Integer):Integer;
 function  _bind(s:Integer;name:Pointer;namelen:Integer):Integer;
 function  _setsockopt(s,level,name:Integer;val:Pointer;valsize:Integer):Integer;
 function  _listen(s,backlog:Integer):Integer;
@@ -675,6 +676,13 @@ asm
  jmp   cerror
 end;
 
+function __sys_netabort(fd,flags:Integer):Integer; assembler; nostackframe;
+asm
+ movq  $101,%rax
+ call  fast_syscall
+ jmp   cerror
+end;
+
 function _bind(s:Integer;name:Pointer;namelen:Integer):Integer; assembler; nostackframe;
 asm
  movq  $104,%rax