236 lines
3.9 KiB
C
236 lines
3.9 KiB
C
/*++
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Copyright (c) 1991 Microsoft Corporation
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Module Name:
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crtsup.c
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Abstract:
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This module contains support routines used by the Posix C runtimes.
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Author:
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Ellen Aycock-Wright (ellena) 07-Aug-1991
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Environment:
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User Mode only
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Revision History:
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--*/
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#include "psxmsg.h"
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#include "psxdll.h"
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char *
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__cdecl
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__PdxGetCmdLine(
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VOID
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)
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/*++
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Routine Description:
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The command line of the current process is available using this
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API.
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Arguments:
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None.
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Return Value:
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The address of the current processes command line is returned. The
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return value is a pointer to null terminate string.
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--*/
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{
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return PsxAnsiCommandLine.Buffer;
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}
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int
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PdxStatusToErrno(
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IN NTSTATUS Status
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)
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/*++
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Routine Description:
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This procedure converts an NT status code to an
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equivalent errno value. BUG BUG it is duplicated in the
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server as PsxStatusToErrno to avoid calling the server.
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The conversion is a function of the status code class.
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Arguments:
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Class - Supplies the status code class to use.
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Status - Supplies the status code to convert.
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Return Value:
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Returns an equivalent error code to the supplied status code.
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--*/
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{
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ULONG Error;
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switch (Status) {
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case STATUS_INVALID_PARAMETER:
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Error = EINVAL;
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break;
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case STATUS_DIRECTORY_NOT_EMPTY:
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// Error = ENOTEMPTY;
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Error = EEXIST;
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break;
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case STATUS_OBJECT_PATH_INVALID:
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case STATUS_NOT_A_DIRECTORY:
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Error = ENOTDIR;
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break;
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case STATUS_OBJECT_PATH_SYNTAX_BAD:
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// this for the rename test; 'old' has component too long.
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Error = ENAMETOOLONG;
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break;
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case STATUS_OBJECT_NAME_COLLISION:
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Error = EEXIST;
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break;
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case STATUS_OBJECT_PATH_NOT_FOUND:
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case STATUS_OBJECT_NAME_NOT_FOUND:
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case STATUS_DELETE_PENDING:
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Error = ENOENT;
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break;
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case STATUS_NO_MEMORY:
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case STATUS_INSUFFICIENT_RESOURCES:
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Error = ENOMEM;
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break;
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case STATUS_CANNOT_DELETE:
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Error = ETXTBUSY;
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break;
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case STATUS_DISK_FULL:
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Error = ENOSPC;
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break;
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case STATUS_MEDIA_WRITE_PROTECTED:
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Error = EROFS;
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break;
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case STATUS_OBJECT_NAME_INVALID:
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Error = ENAMETOOLONG;
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break;
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case STATUS_FILE_IS_A_DIRECTORY:
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Error = EISDIR;
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break;
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case STATUS_NOT_SAME_DEVICE:
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Error = EXDEV;
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break;
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default :
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Error = EACCES;
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}
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return Error;
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}
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//
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// Copied from the server side.
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//
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int
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PdxStatusToErrnoPath(
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PUNICODE_STRING Path
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)
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{
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NTSTATUS Status;
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OBJECT_ATTRIBUTES Obj;
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HANDLE FileHandle;
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ULONG DesiredAccess;
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IO_STATUS_BLOCK Iosb;
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ULONG Options;
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PWCHAR pwc, pwcSav;
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ULONG MinLen;
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PSX_GET_SIZEOF(DOSDEVICE_X_W,MinLen);
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DesiredAccess = SYNCHRONIZE;
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Options = FILE_SYNCHRONOUS_IO_NONALERT | FILE_DIRECTORY_FILE;
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pwcSav = NULL;
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for (;;) {
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//
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// Remove trailing component.
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//
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pwc = wcsrchr(Path->Buffer, L'\\');
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if (pwcSav)
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*pwcSav = L'\\';
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if (NULL == pwc) {
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break;
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}
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*pwc = UNICODE_NULL;
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pwcSav = pwc;
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Path->Length = wcslen(Path->Buffer) * sizeof(WCHAR);
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if (Path->Length <= MinLen) {
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*pwcSav = L'\\';
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break;
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}
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InitializeObjectAttributes(&Obj, Path, 0, NULL, NULL);
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Status = NtOpenFile(&FileHandle, DesiredAccess, &Obj,
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&Iosb,
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FILE_SHARE_READ|FILE_SHARE_WRITE|FILE_SHARE_DELETE,
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Options);
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if (NT_SUCCESS(Status)) {
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NtClose(FileHandle);\
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}
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if (STATUS_NOT_A_DIRECTORY == Status) {
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*pwcSav = L'\\';
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Path->Length = wcslen(Path->Buffer) * sizeof(WCHAR);
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return ENOTDIR;
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}
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}
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Path->Length = wcslen(Path->Buffer) * sizeof(WCHAR);
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return ENOENT;
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}
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int __cdecl
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raise(int sig)
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{
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return kill(getpid(), sig);
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}
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/*
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* This routine is called by heapinit(), in crt32psx/winheap. We
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* would have a reference forwarder in psxdll.def, except RtlProcessHeap
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* is a macro and can't be forwarded.
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*/
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void *
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GetProcessHeap(void)
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{
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return (void *)RtlProcessHeap();
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}
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