1 files changed, 0 insertions, 355 deletions
diff --git a/contrib/libs/postgresql/src/port/dirmod.c b/contrib/libs/postgresql/src/port/dirmod.c
deleted file mode 100644
index 46c9c235c8..0000000000
--- a/contrib/libs/postgresql/src/port/dirmod.c
+++ /dev/null
@@ -1,355 +0,0 @@
-/*-------------------------------------------------------------------------
- *
- * dirmod.c
- *	  directory handling functions
- *
- * Portions Copyright (c) 1996-2021, PostgreSQL Global Development Group
- * Portions Copyright (c) 1994, Regents of the University of California
- *
- *	This includes replacement versions of functions that work on
- *	Win32 (NT4 and newer).
- *
- * IDENTIFICATION
- *	  src/port/dirmod.c
- *
- *-------------------------------------------------------------------------
- */
-
-#ifndef FRONTEND
-#include "postgres.h"
-#else
-#include "postgres_fe.h"
-#endif
-
-/* Don't modify declarations in system headers */
-#if defined(WIN32) || defined(__CYGWIN__)
-#undef rename
-#undef unlink
-#endif
-
-#include <unistd.h>
-#include <sys/stat.h>
-
-#if defined(WIN32) || defined(__CYGWIN__)
-#ifndef __CYGWIN__
-#include <winioctl.h>
-#else
-#include <windows.h>
-#error #include <w32api/winioctl.h>
-#endif
-#endif
-
-#if defined(WIN32) || defined(__CYGWIN__)
-
-/*
- *	pgrename
- */
-int
-pgrename(const char *from, const char *to)
-{
-	int			loops = 0;
-
-	/*
-	 * We need to loop because even though PostgreSQL uses flags that allow
-	 * rename while the file is open, other applications might have the file
-	 * open without those flags.  However, we won't wait indefinitely for
-	 * someone else to close the file, as the caller might be holding locks
-	 * and blocking other backends.
-	 */
-#if defined(WIN32) && !defined(__CYGWIN__)
-	while (!MoveFileEx(from, to, MOVEFILE_REPLACE_EXISTING))
-#else
-	while (rename(from, to) < 0)
-#endif
-	{
-#if defined(WIN32) && !defined(__CYGWIN__)
-		DWORD		err = GetLastError();
-
-		_dosmaperr(err);
-
-		/*
-		 * Modern NT-based Windows versions return ERROR_SHARING_VIOLATION if
-		 * another process has the file open without FILE_SHARE_DELETE.
-		 * ERROR_LOCK_VIOLATION has also been seen with some anti-virus
-		 * software. This used to check for just ERROR_ACCESS_DENIED, so
-		 * presumably you can get that too with some OS versions. We don't
-		 * expect real permission errors where we currently use rename().
-		 */
-		if (err != ERROR_ACCESS_DENIED &&
-			err != ERROR_SHARING_VIOLATION &&
-			err != ERROR_LOCK_VIOLATION)
-			return -1;
-#else
-		if (errno != EACCES)
-			return -1;
-#endif
-
-		if (++loops > 100)		/* time out after 10 sec */
-			return -1;
-		pg_usleep(100000);		/* us */
-	}
-	return 0;
-}
-
-
-/*
- *	pgunlink
- */
-int
-pgunlink(const char *path)
-{
-	int			loops = 0;
-
-	/*
-	 * We need to loop because even though PostgreSQL uses flags that allow
-	 * unlink while the file is open, other applications might have the file
-	 * open without those flags.  However, we won't wait indefinitely for
-	 * someone else to close the file, as the caller might be holding locks
-	 * and blocking other backends.
-	 */
-	while (unlink(path))
-	{
-		if (errno != EACCES)
-			return -1;
-		if (++loops > 100)		/* time out after 10 sec */
-			return -1;
-		pg_usleep(100000);		/* us */
-	}
-	return 0;
-}
-
-/* We undefined these above; now redefine for possible use below */
-#define rename(from, to)		pgrename(from, to)
-#define unlink(path)			pgunlink(path)
-#endif							/* defined(WIN32) || defined(__CYGWIN__) */
-
-
-#if defined(WIN32) && !defined(__CYGWIN__)	/* Cygwin has its own symlinks */
-
-/*
- *	pgsymlink support:
- *
- *	This struct is a replacement for REPARSE_DATA_BUFFER which is defined in VC6 winnt.h
- *	but omitted in later SDK functions.
- *	We only need the SymbolicLinkReparseBuffer part of the original struct's union.
- */
-typedef struct
-{
-	DWORD		ReparseTag;
-	WORD		ReparseDataLength;
-	WORD		Reserved;
-	/* SymbolicLinkReparseBuffer */
-	WORD		SubstituteNameOffset;
-	WORD		SubstituteNameLength;
-	WORD		PrintNameOffset;
-	WORD		PrintNameLength;
-	WCHAR		PathBuffer[FLEXIBLE_ARRAY_MEMBER];
-} REPARSE_JUNCTION_DATA_BUFFER;
-
-#define REPARSE_JUNCTION_DATA_BUFFER_HEADER_SIZE   \
-		FIELD_OFFSET(REPARSE_JUNCTION_DATA_BUFFER, SubstituteNameOffset)
-
-
-/*
- *	pgsymlink - uses Win32 junction points
- *
- *	For reference:	http://www.codeproject.com/KB/winsdk/junctionpoints.aspx
- */
-int
-pgsymlink(const char *oldpath, const char *newpath)
-{
-	HANDLE		dirhandle;
-	DWORD		len;
-	char		buffer[MAX_PATH * sizeof(WCHAR) + offsetof(REPARSE_JUNCTION_DATA_BUFFER, PathBuffer)];
-	char		nativeTarget[MAX_PATH];
-	char	   *p = nativeTarget;
-	REPARSE_JUNCTION_DATA_BUFFER *reparseBuf = (REPARSE_JUNCTION_DATA_BUFFER *) buffer;
-
-	CreateDirectory(newpath, 0);
-	dirhandle = CreateFile(newpath, GENERIC_READ | GENERIC_WRITE,
-						   0, 0, OPEN_EXISTING,
-						   FILE_FLAG_OPEN_REPARSE_POINT | FILE_FLAG_BACKUP_SEMANTICS, 0);
-
-	if (dirhandle == INVALID_HANDLE_VALUE)
-		return -1;
-
-	/* make sure we have an unparsed native win32 path */
-	if (memcmp("\\??\\", oldpath, 4) != 0)
-		snprintf(nativeTarget, sizeof(nativeTarget), "\\??\\%s", oldpath);
-	else
-		strlcpy(nativeTarget, oldpath, sizeof(nativeTarget));
-
-	while ((p = strchr(p, '/')) != NULL)
-		*p++ = '\\';
-
-	len = strlen(nativeTarget) * sizeof(WCHAR);
-	reparseBuf->ReparseTag = IO_REPARSE_TAG_MOUNT_POINT;
-	reparseBuf->ReparseDataLength = len + 12;
-	reparseBuf->Reserved = 0;
-	reparseBuf->SubstituteNameOffset = 0;
-	reparseBuf->SubstituteNameLength = len;
-	reparseBuf->PrintNameOffset = len + sizeof(WCHAR);
-	reparseBuf->PrintNameLength = 0;
-	MultiByteToWideChar(CP_ACP, 0, nativeTarget, -1,
-						reparseBuf->PathBuffer, MAX_PATH);
-
-	/*
-	 * FSCTL_SET_REPARSE_POINT is coded differently depending on SDK version;
-	 * we use our own definition
-	 */
-	if (!DeviceIoControl(dirhandle,
-						 CTL_CODE(FILE_DEVICE_FILE_SYSTEM, 41, METHOD_BUFFERED, FILE_ANY_ACCESS),
-						 reparseBuf,
-						 reparseBuf->ReparseDataLength + REPARSE_JUNCTION_DATA_BUFFER_HEADER_SIZE,
-						 0, 0, &len, 0))
-	{
-		LPSTR		msg;
-
-		errno = 0;
-		FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER |
-					  FORMAT_MESSAGE_IGNORE_INSERTS |
-					  FORMAT_MESSAGE_FROM_SYSTEM,
-					  NULL, GetLastError(),
-					  MAKELANGID(LANG_ENGLISH, SUBLANG_DEFAULT),
-					  (LPSTR) &msg, 0, NULL);
-#ifndef FRONTEND
-		ereport(ERROR,
-				(errcode_for_file_access(),
-				 errmsg("could not set junction for \"%s\": %s",
-						nativeTarget, msg)));
-#else
-		fprintf(stderr, _("could not set junction for \"%s\": %s\n"),
-				nativeTarget, msg);
-#endif
-		LocalFree(msg);
-
-		CloseHandle(dirhandle);
-		RemoveDirectory(newpath);
-		return -1;
-	}
-
-	CloseHandle(dirhandle);
-
-	return 0;
-}
-
-/*
- *	pgreadlink - uses Win32 junction points
- */
-int
-pgreadlink(const char *path, char *buf, size_t size)
-{
-	DWORD		attr;
-	HANDLE		h;
-	char		buffer[MAX_PATH * sizeof(WCHAR) + offsetof(REPARSE_JUNCTION_DATA_BUFFER, PathBuffer)];
-	REPARSE_JUNCTION_DATA_BUFFER *reparseBuf = (REPARSE_JUNCTION_DATA_BUFFER *) buffer;
-	DWORD		len;
-	int			r;
-
-	attr = GetFileAttributes(path);
-	if (attr == INVALID_FILE_ATTRIBUTES)
-	{
-		_dosmaperr(GetLastError());
-		return -1;
-	}
-	if ((attr & FILE_ATTRIBUTE_REPARSE_POINT) == 0)
-	{
-		errno = EINVAL;
-		return -1;
-	}
-
-	h = CreateFile(path,
-				   GENERIC_READ,
-				   FILE_SHARE_READ | FILE_SHARE_WRITE,
-				   NULL,
-				   OPEN_EXISTING,
-				   FILE_FLAG_OPEN_REPARSE_POINT | FILE_FLAG_BACKUP_SEMANTICS,
-				   0);
-	if (h == INVALID_HANDLE_VALUE)
-	{
-		_dosmaperr(GetLastError());
-		return -1;
-	}
-
-	if (!DeviceIoControl(h,
-						 FSCTL_GET_REPARSE_POINT,
-						 NULL,
-						 0,
-						 (LPVOID) reparseBuf,
-						 sizeof(buffer),
-						 &len,
-						 NULL))
-	{
-		LPSTR		msg;
-
-		errno = 0;
-		FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER |
-					  FORMAT_MESSAGE_IGNORE_INSERTS |
-					  FORMAT_MESSAGE_FROM_SYSTEM,
-					  NULL, GetLastError(),
-					  MAKELANGID(LANG_ENGLISH, SUBLANG_DEFAULT),
-					  (LPSTR) &msg, 0, NULL);
-#ifndef FRONTEND
-		ereport(ERROR,
-				(errcode_for_file_access(),
-				 errmsg("could not get junction for \"%s\": %s",
-						path, msg)));
-#else
-		fprintf(stderr, _("could not get junction for \"%s\": %s\n"),
-				path, msg);
-#endif
-		LocalFree(msg);
-		CloseHandle(h);
-		errno = EINVAL;
-		return -1;
-	}
-	CloseHandle(h);
-
-	/* Got it, let's get some results from this */
-	if (reparseBuf->ReparseTag != IO_REPARSE_TAG_MOUNT_POINT)
-	{
-		errno = EINVAL;
-		return -1;
-	}
-
-	r = WideCharToMultiByte(CP_ACP, 0,
-							reparseBuf->PathBuffer, -1,
-							buf,
-							size,
-							NULL, NULL);
-
-	if (r <= 0)
-	{
-		errno = EINVAL;
-		return -1;
-	}
-
-	/*
-	 * If the path starts with "\??\", which it will do in most (all?) cases,
-	 * strip those out.
-	 */
-	if (r > 4 && strncmp(buf, "\\??\\", 4) == 0)
-	{
-		memmove(buf, buf + 4, strlen(buf + 4) + 1);
-		r -= 4;
-	}
-	return r;
-}
-
-/*
- * Assumes the file exists, so will return false if it doesn't
- * (since a nonexistent file is not a junction)
- */
-bool
-pgwin32_is_junction(const char *path)
-{
-	DWORD		attr = GetFileAttributes(path);
-
-	if (attr == INVALID_FILE_ATTRIBUTES)
-	{
-		_dosmaperr(GetLastError());
-		return false;
-	}
-	return ((attr & FILE_ATTRIBUTE_REPARSE_POINT) == FILE_ATTRIBUTE_REPARSE_POINT);
-}
-#endif							/* defined(WIN32) && !defined(__CYGWIN__) */