165 lines
3.9 KiB
C
165 lines
3.9 KiB
C
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/*++
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Copyright (c) 1990-91 Microsoft Corporation
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Module Name:
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pathcan.c
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Abstract:
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Net path canonicalization routines:
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NetpwCanonicalize
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Notes:
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The Nt versions of these routines are kept in the NetApi Dll and are
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(usually) called locally. If the caller specifies a remote computer
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name then we try to RPC the request. If that fails the wrapper routine
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which attempts RPC will call down-level.
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OLDPATHS support has been removed from this module in keeping with the
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N-1 (this product and its immediate predecessor) philosophy of NT.
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Therefore, we always expect a down-level server to be able to handle a
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remoted canonicalization request. We don't cover for Lan Manager 1.x
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Types of paths we expect to receive in this routine:
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- relative path
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e.g. foo\bar
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- absolute path (path specified from root, but no drive or computer name)
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e.g. \foo\bar
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- UNC path
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e.g. \\computer\share\foo
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- disk path (full path specified with disk drive)
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e.g. d:\foo\bar
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Author:
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Richard L Firth (rfirth) 06-Jan-1992
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from an original script by danny glasser (dannygl)
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Revision History:
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--*/
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#include "nticanon.h"
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//
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// routines
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//
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NET_API_STATUS
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NetpwPathCanonicalize(
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IN LPTSTR PathName,
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IN LPTSTR Outbuf,
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IN DWORD OutbufLen,
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IN LPTSTR Prefix OPTIONAL,
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IN OUT LPDWORD PathType,
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IN DWORD Flags
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)
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/*++
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Routine Description:
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NetpPathCanonicalize produces the canonical version of the specified
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pathname.
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The canonical form of PRN is LPT1
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The canonical form of AUX is COM1
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If the value of <PathType> on entry has not been determined
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by a prior (successful) call to NetpPathType, it must be set to 0.
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Even if it is set to the correct non-zero value on entry, it may be
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changed by this function, since the canonicalized version of a name
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may be of a different type than the original version (e.g. if the
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prefix is used).
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Arguments:
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PathName - The pathname to canonicalize
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Outbuf - The place to store the canonicalized version of the pathname
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OutbufLen - The size, in bytes, of <Outbuf>
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Prefix - Optional prefix to use when canonicalizing a relative pathname
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PathType - The place to store the type. If the type does not contain
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zero on function entry, the function assumes that this type
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has been determined already by a call to NetpPathType
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Flags - Flags to determine operation. MBZ
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Return Value:
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NET_API_STATUS
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Success - NERR_Success
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Failure - ERROR_INVALID_PARAMETER
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ERROR_INVALID_NAME
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NERR_BufTooSmall
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--*/
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{
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DWORD rc = 0;
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BOOL noPrefix = ((Prefix == NULL) || (*Prefix == TCHAR_EOS));
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DWORD typeOfPrefix;
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DWORD typeOfPath;
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#ifdef CANONDBG
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NetpKdPrint(("NetpwPathCanonicalize\n"));
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#endif
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typeOfPath = *PathType;
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if (Flags & INPCA_FLAGS_RESERVED) {
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return ERROR_INVALID_PARAMETER;
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}
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//
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// Determine type of pathname, if it hasn't been determined yet
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// Abort on error
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//
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if (!typeOfPath) {
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if (rc = NetpwPathType(PathName, &typeOfPath, 0)) {
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return rc;
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}
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}
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//
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// Validate prefix, if there is one
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// Abort on error
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//
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if (!noPrefix) {
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if (rc = NetpwPathType(Prefix, &typeOfPrefix, 0)) {
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return rc;
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}
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}
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//
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// Set the output buffer to the null string (or return with an error, if
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// it's zero length). Note that we've already set the caller's
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// <PathType> parameter.
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//
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if (OutbufLen == 0) {
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return NERR_BufTooSmall;
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} else {
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*Outbuf = TCHAR_EOS;
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}
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rc = CanonicalizePathName(Prefix, PathName, Outbuf, OutbufLen, NULL);
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if (rc == NERR_Success) {
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rc = NetpwPathType(Outbuf, PathType, 0);
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}
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return rc;
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}
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