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Remove cgo as a dependency added by #48

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Signed-off-by: Darren Stahl <darst@microsoft.com>
This commit is contained in:
Darren Stahl
2017-05-05 16:39:41 -07:00
parent 13736c3252
commit de045f765f
2 changed files with 20 additions and 6 deletions
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pipe.go
+7 -6
View File
@@ -2,9 +2,6 @@
package winio package winio
// #include <stdlib.h>
import "C"
import ( import (
"errors" "errors"
"io" "io"
@@ -21,10 +18,12 @@ import (
//sys waitNamedPipe(name string, timeout uint32) (err error) = WaitNamedPipeW //sys waitNamedPipe(name string, timeout uint32) (err error) = WaitNamedPipeW
//sys getNamedPipeInfo(pipe syscall.Handle, flags *uint32, outSize *uint32, inSize *uint32, maxInstances *uint32) (err error) = GetNamedPipeInfo //sys getNamedPipeInfo(pipe syscall.Handle, flags *uint32, outSize *uint32, inSize *uint32, maxInstances *uint32) (err error) = GetNamedPipeInfo
//sys getNamedPipeHandleState(pipe syscall.Handle, state *uint32, curInstances *uint32, maxCollectionCount *uint32, collectDataTimeout *uint32, userName *uint16, maxUserNameSize uint32) (err error) = GetNamedPipeHandleStateW //sys getNamedPipeHandleState(pipe syscall.Handle, state *uint32, curInstances *uint32, maxCollectionCount *uint32, collectDataTimeout *uint32, userName *uint16, maxUserNameSize uint32) (err error) = GetNamedPipeHandleStateW
//sys localAlloc(uFlags uint32, length uint32) (ptr uintptr) = LocalAlloc
//sys copyMemory(dst uintptr, src uintptr, length uint32) = RtlCopyMemory
type securityAttributes struct { type securityAttributes struct {
Length uint32 Length uint32
SecurityDescriptor unsafe.Pointer SecurityDescriptor uintptr
InheritHandle uint32 InheritHandle uint32
} }
@@ -237,8 +236,10 @@ func makeServerPipeHandle(path string, securityDescriptor []byte, c *PipeConfig,
sa := &securityAttributes{} sa := &securityAttributes{}
sa.Length = uint32(unsafe.Sizeof(*sa)) sa.Length = uint32(unsafe.Sizeof(*sa))
if securityDescriptor != nil { if securityDescriptor != nil {
sa.SecurityDescriptor = C.CBytes(securityDescriptor) len := uint32(len(securityDescriptor))
defer C.free(sa.SecurityDescriptor) sa.SecurityDescriptor = localAlloc(0, len)
defer localFree(sa.SecurityDescriptor)
copyMemory(sa.SecurityDescriptor, uintptr(unsafe.Pointer(&securityDescriptor[0])), len)
} }
h, err := createNamedPipe(path, flags, mode, cPIPE_UNLIMITED_INSTANCES, uint32(c.OutputBufferSize), uint32(c.InputBufferSize), 0, sa) h, err := createNamedPipe(path, flags, mode, cPIPE_UNLIMITED_INSTANCES, uint32(c.OutputBufferSize), uint32(c.InputBufferSize), 0, sa)
if err != nil { if err != nil {
zsyscall_windows.go
+13
View File
@@ -52,6 +52,8 @@ var (
procWaitNamedPipeW = modkernel32.NewProc("WaitNamedPipeW") procWaitNamedPipeW = modkernel32.NewProc("WaitNamedPipeW")
procGetNamedPipeInfo = modkernel32.NewProc("GetNamedPipeInfo") procGetNamedPipeInfo = modkernel32.NewProc("GetNamedPipeInfo")
procGetNamedPipeHandleStateW = modkernel32.NewProc("GetNamedPipeHandleStateW") procGetNamedPipeHandleStateW = modkernel32.NewProc("GetNamedPipeHandleStateW")
procLocalAlloc = modkernel32.NewProc("LocalAlloc")
procRtlCopyMemory = modkernel32.NewProc("RtlCopyMemory")
procLookupAccountNameW = modadvapi32.NewProc("LookupAccountNameW") procLookupAccountNameW = modadvapi32.NewProc("LookupAccountNameW")
procConvertSidToStringSidW = modadvapi32.NewProc("ConvertSidToStringSidW") procConvertSidToStringSidW = modadvapi32.NewProc("ConvertSidToStringSidW")
procConvertStringSecurityDescriptorToSecurityDescriptorW = modadvapi32.NewProc("ConvertStringSecurityDescriptorToSecurityDescriptorW") procConvertStringSecurityDescriptorToSecurityDescriptorW = modadvapi32.NewProc("ConvertStringSecurityDescriptorToSecurityDescriptorW")
@@ -228,6 +230,17 @@ func getNamedPipeHandleState(pipe syscall.Handle, state *uint32, curInstances *u
return return
} }
func localAlloc(uFlags uint32, length uint32) (ptr uintptr) {
r0, _, _ := syscall.Syscall(procLocalAlloc.Addr(), 2, uintptr(uFlags), uintptr(length), 0)
ptr = uintptr(r0)
return
}
func copyMemory(dst uintptr, src uintptr, length uint32) {
syscall.Syscall(procRtlCopyMemory.Addr(), 3, uintptr(dst), uintptr(src), uintptr(length))
return
}
func lookupAccountName(systemName *uint16, accountName string, sid *byte, sidSize *uint32, refDomain *uint16, refDomainSize *uint32, sidNameUse *uint32) (err error) { func lookupAccountName(systemName *uint16, accountName string, sid *byte, sidSize *uint32, refDomain *uint16, refDomainSize *uint32, sidNameUse *uint32) (err error) {
var _p0 *uint16 var _p0 *uint16
_p0, err = syscall.UTF16PtrFromString(accountName) _p0, err = syscall.UTF16PtrFromString(accountName)