diff options
Diffstat (limited to 'win/tclWinTest.c')
| -rw-r--r-- | win/tclWinTest.c | 673 |
1 files changed, 419 insertions, 254 deletions
diff --git a/win/tclWinTest.c b/win/tclWinTest.c index a5af926..6027e32 100644 --- a/win/tclWinTest.c +++ b/win/tclWinTest.c @@ -1,50 +1,58 @@ -/* +/* * tclWinTest.c -- * * Contains commands for platform specific tests on Windows. * * Copyright (c) 1996 Sun Microsystems, Inc. * - * See the file "license.terms" for information on usage and redistribution - * of this file, and for a DISCLAIMER OF ALL WARRANTIES. - * - * RCS: @(#) $Id: tclWinTest.c,v 1.11 2004/06/05 17:31:08 kennykb Exp $ + * See the file "license.terms" for information on usage and redistribution of + * this file, and for a DISCLAIMER OF ALL WARRANTIES. */ -#define USE_COMPAT_CONST +#ifndef USE_TCL_STUBS +# define USE_TCL_STUBS +#endif #include "tclInt.h" /* - * Forward declarations of procedures defined later in this file: + * For TestplatformChmod on Windows + */ +#ifdef _WIN32 +#include <aclapi.h> +#endif + +/* + * MinGW 3.4.2 does not define this. + */ +#ifndef INHERITED_ACE +#define INHERITED_ACE (0x10) +#endif + +/* + * Forward declarations of functions defined later in this file: */ -int TclplatformtestInit _ANSI_ARGS_((Tcl_Interp *interp)); -static int TesteventloopCmd _ANSI_ARGS_((ClientData dummy, - Tcl_Interp *interp, int argc, char **argv)); -static int TestvolumetypeCmd _ANSI_ARGS_((ClientData dummy, - Tcl_Interp *interp, int objc, - Tcl_Obj *CONST objv[])); -static int TestwinclockCmd _ANSI_ARGS_(( ClientData dummy, - Tcl_Interp* interp, - int objc, - Tcl_Obj *CONST objv[] )); -static int TestwinsleepCmd _ANSI_ARGS_(( ClientData dummy, - Tcl_Interp* interp, - int objc, - Tcl_Obj *CONST objv[] )); -static Tcl_ObjCmdProc TestExceptionCmd; -static int TestwincpuidCmd _ANSI_ARGS_(( ClientData dummy, - Tcl_Interp* interp, - int objc, - Tcl_Obj *CONST objv[] )); +static int TesteventloopCmd(ClientData dummy, Tcl_Interp *interp, + int argc, const char **argv); +static int TestvolumetypeCmd(ClientData dummy, + Tcl_Interp *interp, int objc, + Tcl_Obj *const objv[]); +static int TestwinclockCmd(ClientData dummy, Tcl_Interp* interp, + int objc, Tcl_Obj *const objv[]); +static int TestwinsleepCmd(ClientData dummy, Tcl_Interp* interp, + int objc, Tcl_Obj *const objv[]); +static Tcl_ObjCmdProc TestExceptionCmd; +static int TestplatformChmod(const char *nativePath, int pmode); +static int TestchmodCmd(ClientData dummy, + Tcl_Interp *interp, int argc, const char **argv); /* *---------------------------------------------------------------------- * * TclplatformtestInit -- * - * Defines commands that test platform specific functionality for - * Windows platforms. + * Defines commands that test platform specific functionality for Windows + * platforms. * * Results: * A standard Tcl result. @@ -56,26 +64,19 @@ static int TestwincpuidCmd _ANSI_ARGS_(( ClientData dummy, */ int -TclplatformtestInit(interp) - Tcl_Interp *interp; /* Interpreter to add commands to. */ +TclplatformtestInit( + Tcl_Interp *interp) /* Interpreter to add commands to. */ { /* * Add commands for platform specific tests for Windows here. */ - Tcl_CreateCommand(interp, "testeventloop", TesteventloopCmd, - (ClientData) 0, (Tcl_CmdDeleteProc *) NULL); + Tcl_CreateCommand(interp, "testchmod", TestchmodCmd, NULL, NULL); + Tcl_CreateCommand(interp, "testeventloop", TesteventloopCmd, NULL, NULL); Tcl_CreateObjCommand(interp, "testvolumetype", TestvolumetypeCmd, - (ClientData) 0, (Tcl_CmdDeleteProc *) NULL); - Tcl_CreateObjCommand(interp, "testwinclock", TestwinclockCmd, - (ClientData) 0, (Tcl_CmdDeleteProc *) NULL); - Tcl_CreateObjCommand(interp, "testwincpuid", TestwincpuidCmd, - (ClientData) 0, (Tcl_CmdDeleteProc*) NULL ); - Tcl_CreateObjCommand( interp, - "testwinsleep", - TestwinsleepCmd, - (ClientData) 0, - (Tcl_CmdDeleteProc *) NULL ); + NULL, NULL); + Tcl_CreateObjCommand(interp, "testwinclock", TestwinclockCmd, NULL, NULL); + Tcl_CreateObjCommand(interp, "testwinsleep", TestwinsleepCmd, NULL, NULL); Tcl_CreateObjCommand(interp, "testexcept", TestExceptionCmd, NULL, NULL); return TCL_OK; } @@ -85,9 +86,9 @@ TclplatformtestInit(interp) * * TesteventloopCmd -- * - * This procedure implements the "testeventloop" command. It is - * used to test the Tcl notifier from an "external" event loop - * (i.e. not Tcl_DoOneEvent()). + * This function implements the "testeventloop" command. It is used to + * test the Tcl notifier from an "external" event loop (i.e. not + * Tcl_DoOneEvent()). * * Results: * A standard Tcl result. @@ -99,27 +100,25 @@ TclplatformtestInit(interp) */ static int -TesteventloopCmd(clientData, interp, argc, argv) - ClientData clientData; /* Not used. */ - Tcl_Interp *interp; /* Current interpreter. */ - int argc; /* Number of arguments. */ - char **argv; /* Argument strings. */ +TesteventloopCmd( + ClientData clientData, /* Not used. */ + Tcl_Interp *interp, /* Current interpreter. */ + int argc, /* Number of arguments. */ + const char **argv) /* Argument strings. */ { - static int *framePtr = NULL; /* Pointer to integer on stack frame of - * innermost invocation of the "wait" - * subcommand. */ + static int *framePtr = NULL;/* Pointer to integer on stack frame of + * innermost invocation of the "wait" + * subcommand. */ - if (argc < 2) { + if (argc < 2) { Tcl_AppendResult(interp, "wrong # arguments: should be \"", argv[0], - " option ... \"", (char *) NULL); - return TCL_ERROR; + " option ... \"", NULL); + return TCL_ERROR; } if (strcmp(argv[1], "done") == 0) { *framePtr = 1; } else if (strcmp(argv[1], "wait") == 0) { - int *oldFramePtr; - int done; - MSG msg; + int *oldFramePtr, done; int oldMode = Tcl_SetServiceMode(TCL_SERVICE_ALL); /* @@ -130,19 +129,21 @@ TesteventloopCmd(clientData, interp, argc, argv) framePtr = &done; /* - * Enter a standard Windows event loop until the flag changes. - * Note that we do not explicitly call Tcl_ServiceEvent(). + * Enter a standard Windows event loop until the flag changes. Note + * that we do not explicitly call Tcl_ServiceEvent(). */ done = 0; while (!done) { + MSG msg; + if (!GetMessage(&msg, NULL, 0, 0)) { /* - * The application is exiting, so repost the quit message - * and start unwinding. + * The application is exiting, so repost the quit message and + * start unwinding. */ - PostQuitMessage(msg.wParam); + PostQuitMessage((int) msg.wParam); break; } TranslateMessage(&msg); @@ -152,7 +153,7 @@ TesteventloopCmd(clientData, interp, argc, argv) framePtr = oldFramePtr; } else { Tcl_AppendResult(interp, "bad option \"", argv[1], - "\": must be done or wait", (char *) NULL); + "\": must be done or wait", NULL); return TCL_ERROR; } return TCL_OK; @@ -163,8 +164,8 @@ TesteventloopCmd(clientData, interp, argc, argv) * * Testvolumetype -- * - * This procedure implements the "testvolumetype" command. It is - * used to check the volume type (FAT, NTFS) of a volume. + * This function implements the "testvolumetype" command. It is used to + * check the volume type (FAT, NTFS) of a volume. * * Results: * A standard Tcl result. @@ -176,40 +177,41 @@ TesteventloopCmd(clientData, interp, argc, argv) */ static int -TestvolumetypeCmd(clientData, interp, objc, objv) - ClientData clientData; /* Not used. */ - Tcl_Interp *interp; /* Current interpreter. */ - int objc; /* Number of arguments. */ - Tcl_Obj *CONST objv[]; /* Argument objects. */ +TestvolumetypeCmd( + ClientData clientData, /* Not used. */ + Tcl_Interp *interp, /* Current interpreter. */ + int objc, /* Number of arguments. */ + Tcl_Obj *const objv[]) /* Argument objects. */ { #define VOL_BUF_SIZE 32 int found; char volType[VOL_BUF_SIZE]; - char *path; + const char *path; if (objc > 2) { Tcl_WrongNumArgs(interp, 1, objv, "?name?"); - return TCL_ERROR; + return TCL_ERROR; } if (objc == 2) { /* - * path has to be really a proper volume, but we don't - * get query APIs for that until NT5 + * path has to be really a proper volume, but we don't get query APIs + * for that until NT5 */ + path = Tcl_GetString(objv[1]); } else { path = NULL; } - found = GetVolumeInformationA(path, NULL, 0, NULL, NULL, - NULL, volType, VOL_BUF_SIZE); + found = GetVolumeInformationA(path, NULL, 0, NULL, NULL, NULL, volType, + VOL_BUF_SIZE); if (found == 0) { Tcl_AppendResult(interp, "could not get volume type for \"", - (path?path:""), "\"", (char *) NULL); + (path?path:""), "\"", NULL); TclWinConvertError(GetLastError()); return TCL_ERROR; } - Tcl_SetResult(interp, volType, TCL_VOLATILE); + Tcl_AppendResult(interp, volType, NULL); return TCL_OK; #undef VOL_BUF_SIZE } @@ -219,9 +221,9 @@ TestvolumetypeCmd(clientData, interp, objc, objv) * * TestwinclockCmd -- * - * Command that returns the seconds and microseconds portions of - * the system clock and of the Tcl clock so that they can be - * compared to validate that the Tcl clock is staying in sync. + * Command that returns the seconds and microseconds portions of the + * system clock and of the Tcl clock so that they can be compared to + * validate that the Tcl clock is staying in sync. * * Usage: * testclock @@ -230,9 +232,9 @@ TestvolumetypeCmd(clientData, interp, objc, objv) * None. * * Results: - * Returns a standard Tcl result comprising a four-element list: - * the seconds and microseconds portions of the system clock, - * and the seconds and microseconds portions of the Tcl clock. + * Returns a standard Tcl result comprising a four-element list: the + * seconds and microseconds portions of the system clock, and the seconds + * and microseconds portions of the Tcl clock. * * Side effects: * None. @@ -241,156 +243,71 @@ TestvolumetypeCmd(clientData, interp, objc, objv) */ static int -TestwinclockCmd( ClientData dummy, - /* Unused */ - Tcl_Interp* interp, - /* Tcl interpreter */ - int objc, - /* Argument count */ - Tcl_Obj *CONST objv[] ) - /* Argument vector */ +TestwinclockCmd( + ClientData dummy, /* Unused */ + Tcl_Interp* interp, /* Tcl interpreter */ + int objc, /* Argument count */ + Tcl_Obj *const objv[]) /* Argument vector */ { - CONST static FILETIME posixEpoch = { 0xD53E8000, 0x019DB1DE }; - /* The Posix epoch, expressed as a - * Windows FILETIME */ + static const FILETIME posixEpoch = { 0xD53E8000, 0x019DB1DE }; + /* The Posix epoch, expressed as a Windows + * FILETIME */ Tcl_Time tclTime; /* Tcl clock */ FILETIME sysTime; /* System clock */ - Tcl_Obj* result; /* Result of the command */ + Tcl_Obj *result; /* Result of the command */ LARGE_INTEGER t1, t2; LARGE_INTEGER p1, p2; - if ( objc != 1 ) { - Tcl_WrongNumArgs( interp, 1, objv, "" ); + if (objc != 1) { + Tcl_WrongNumArgs(interp, 1, objv, ""); return TCL_ERROR; } - QueryPerformanceCounter( &p1 ); + QueryPerformanceCounter(&p1); - Tcl_GetTime( &tclTime ); - GetSystemTimeAsFileTime( &sysTime ); + Tcl_GetTime(&tclTime); + GetSystemTimeAsFileTime(&sysTime); t1.LowPart = posixEpoch.dwLowDateTime; t1.HighPart = posixEpoch.dwHighDateTime; t2.LowPart = sysTime.dwLowDateTime; t2.HighPart = sysTime.dwHighDateTime; t2.QuadPart -= t1.QuadPart; - QueryPerformanceCounter( &p2 ); + QueryPerformanceCounter(&p2); result = Tcl_NewObj(); - Tcl_ListObjAppendElement - ( interp, result, Tcl_NewIntObj( (int) (t2.QuadPart / 10000000 ) ) ); - Tcl_ListObjAppendElement - ( interp, result, - Tcl_NewIntObj( (int) ( (t2.QuadPart / 10 ) % 1000000 ) ) ); - Tcl_ListObjAppendElement( interp, result, Tcl_NewIntObj( tclTime.sec ) ); - Tcl_ListObjAppendElement( interp, result, Tcl_NewIntObj( tclTime.usec ) ); + Tcl_ListObjAppendElement(interp, result, + Tcl_NewIntObj((int) (t2.QuadPart / 10000000))); + Tcl_ListObjAppendElement(interp, result, + Tcl_NewIntObj((int) ((t2.QuadPart / 10) % 1000000))); + Tcl_ListObjAppendElement(interp, result, Tcl_NewIntObj(tclTime.sec)); + Tcl_ListObjAppendElement(interp, result, Tcl_NewIntObj(tclTime.usec)); - Tcl_ListObjAppendElement( interp, result, Tcl_NewWideIntObj( p1.QuadPart ) ); - Tcl_ListObjAppendElement( interp, result, Tcl_NewWideIntObj( p2.QuadPart ) ); + Tcl_ListObjAppendElement(interp, result, Tcl_NewWideIntObj(p1.QuadPart)); + Tcl_ListObjAppendElement(interp, result, Tcl_NewWideIntObj(p2.QuadPart)); - Tcl_SetObjResult( interp, result ); + Tcl_SetObjResult(interp, result); return TCL_OK; } -/* - *---------------------------------------------------------------------- - * - * TestwincpuidCmd -- - * - * Retrieves CPU ID information. - * - * Usage: - * testwincpuid <eax> - * - * Parameters: - * eax - The value to pass in the EAX register to a CPUID instruction. - * - * Results: - * Returns a four-element list containing the values from the - * EAX, EBX, ECX and EDX registers returned from the CPUID instruction. - * - * Side effects: - * None. - * - *---------------------------------------------------------------------- - */ - static int -TestwincpuidCmd( ClientData dummy, - Tcl_Interp* interp, /* Tcl interpreter */ - int objc, /* Parameter count */ - Tcl_Obj *CONST * objv ) /* Parameter vector */ -{ - int status; - int index; - unsigned int regs[4]; - Tcl_Obj * regsObjs[4]; - int i; - - if ( objc != 2 ) { - Tcl_WrongNumArgs( interp, 1, objv, "eax" ); - return TCL_ERROR; - } - if ( Tcl_GetIntFromObj( interp, objv[1], &index ) != TCL_OK ) { - return TCL_ERROR; - } - status = TclWinCPUID( (unsigned int) index, regs ); - if ( status != TCL_OK ) { - Tcl_SetObjResult( interp, Tcl_NewStringObj( "operation not available", - -1 ) ); - return status; - } - for ( i = 0; i < 4; ++i ) { - regsObjs[i] = Tcl_NewIntObj( (int) regs[i] ); - } - Tcl_SetObjResult( interp, Tcl_NewListObj( 4, regsObjs ) ); - return TCL_OK; - -} - -/* - *---------------------------------------------------------------------- - * - * TestwinsleepCmd -- - * - * Causes this process to wait for the given number of milliseconds - * by means of a direct call to Sleep. - * - * Usage: - * testwinsleep <n> - * - * Parameters: - * n - the number of milliseconds to sleep - * - * Results: - * None. - * - * Side effects: - * Sleeps for the requisite number of milliseconds. - * - *---------------------------------------------------------------------- - */ - -static int -TestwinsleepCmd( ClientData clientData, - /* Unused */ - Tcl_Interp* interp, - /* Tcl interpreter */ - int objc, - /* Parameter count */ - Tcl_Obj * CONST * objv ) - /* Parameter vector */ +TestwinsleepCmd( + ClientData clientData, /* Unused */ + Tcl_Interp* interp, /* Tcl interpreter */ + int objc, /* Parameter count */ + Tcl_Obj *const * objv) /* Parameter vector */ { int ms; - if ( objc != 2 ) { - Tcl_WrongNumArgs( interp, 1, objv, "ms" ); + + if (objc != 2) { + Tcl_WrongNumArgs(interp, 1, objv, "ms"); return TCL_ERROR; } - if ( Tcl_GetIntFromObj( interp, objv[1], &ms ) != TCL_OK ) { + if (Tcl_GetIntFromObj(interp, objv[1], &ms) != TCL_OK) { return TCL_ERROR; } - Sleep( (DWORD) ms ); + Sleep((DWORD) ms); return TCL_OK; } @@ -399,8 +316,8 @@ TestwinsleepCmd( ClientData clientData, * * TestExceptionCmd -- * - * Causes this process to end with the named exception. Used for - * testing Tcl_WaitPid(). + * Causes this process to end with the named exception. Used for testing + * Tcl_WaitPid(). * * Usage: * testexcept <type> @@ -422,58 +339,32 @@ TestExceptionCmd( ClientData dummy, /* Unused */ Tcl_Interp* interp, /* Tcl interpreter */ int objc, /* Argument count */ - Tcl_Obj *CONST objv[]) /* Argument vector */ + Tcl_Obj *const objv[]) /* Argument vector */ { - static char *cmds[] = { - "access_violation", - "datatype_misalignment", - "array_bounds", - "float_denormal", - "float_divbyzero", - "float_inexact", - "float_invalidop", - "float_overflow", - "float_stack", - "float_underflow", - "int_divbyzero", - "int_overflow", - "private_instruction", - "inpageerror", - "illegal_instruction", - "noncontinue", - "stack_overflow", - "invalid_disp", - "guard_page", - "invalid_handle", - "ctrl+c", - NULL + static const char *const cmds[] = { + "access_violation", "datatype_misalignment", "array_bounds", + "float_denormal", "float_divbyzero", "float_inexact", + "float_invalidop", "float_overflow", "float_stack", "float_underflow", + "int_divbyzero", "int_overflow", "private_instruction", "inpageerror", + "illegal_instruction", "noncontinue", "stack_overflow", + "invalid_disp", "guard_page", "invalid_handle", "ctrl+c", + NULL }; - static DWORD exceptions[] = { - EXCEPTION_ACCESS_VIOLATION, - EXCEPTION_DATATYPE_MISALIGNMENT, - EXCEPTION_ARRAY_BOUNDS_EXCEEDED, - EXCEPTION_FLT_DENORMAL_OPERAND, - EXCEPTION_FLT_DIVIDE_BY_ZERO, - EXCEPTION_FLT_INEXACT_RESULT, - EXCEPTION_FLT_INVALID_OPERATION, - EXCEPTION_FLT_OVERFLOW, - EXCEPTION_FLT_STACK_CHECK, - EXCEPTION_FLT_UNDERFLOW, - EXCEPTION_INT_DIVIDE_BY_ZERO, - EXCEPTION_INT_OVERFLOW, - EXCEPTION_PRIV_INSTRUCTION, - EXCEPTION_IN_PAGE_ERROR, - EXCEPTION_ILLEGAL_INSTRUCTION, - EXCEPTION_NONCONTINUABLE_EXCEPTION, - EXCEPTION_STACK_OVERFLOW, - EXCEPTION_INVALID_DISPOSITION, - EXCEPTION_GUARD_PAGE, - EXCEPTION_INVALID_HANDLE, - CONTROL_C_EXIT + static const DWORD exceptions[] = { + EXCEPTION_ACCESS_VIOLATION, EXCEPTION_DATATYPE_MISALIGNMENT, + EXCEPTION_ARRAY_BOUNDS_EXCEEDED, EXCEPTION_FLT_DENORMAL_OPERAND, + EXCEPTION_FLT_DIVIDE_BY_ZERO, EXCEPTION_FLT_INEXACT_RESULT, + EXCEPTION_FLT_INVALID_OPERATION, EXCEPTION_FLT_OVERFLOW, + EXCEPTION_FLT_STACK_CHECK, EXCEPTION_FLT_UNDERFLOW, + EXCEPTION_INT_DIVIDE_BY_ZERO, EXCEPTION_INT_OVERFLOW, + EXCEPTION_PRIV_INSTRUCTION, EXCEPTION_IN_PAGE_ERROR, + EXCEPTION_ILLEGAL_INSTRUCTION, EXCEPTION_NONCONTINUABLE_EXCEPTION, + EXCEPTION_STACK_OVERFLOW, EXCEPTION_INVALID_DISPOSITION, + EXCEPTION_GUARD_PAGE, EXCEPTION_INVALID_HANDLE, CONTROL_C_EXIT }; int cmd; - if ( objc != 2 ) { + if (objc != 2) { Tcl_WrongNumArgs(interp, 0, objv, "<type-of-exception>"); return TCL_ERROR; } @@ -501,3 +392,277 @@ TestExceptionCmd( /* NOTREACHED */ return TCL_OK; } + +static int +TestplatformChmod( + const char *nativePath, + int pmode) +{ + static const SECURITY_INFORMATION infoBits = OWNER_SECURITY_INFORMATION + | GROUP_SECURITY_INFORMATION | DACL_SECURITY_INFORMATION; + static const DWORD readOnlyMask = FILE_DELETE_CHILD | FILE_ADD_FILE + | FILE_ADD_SUBDIRECTORY | FILE_WRITE_EA | FILE_APPEND_DATA + | FILE_WRITE_DATA | DELETE; + + /* + * References to security functions (only available on NT and later). + */ + + const BOOL set_readOnly = !(pmode & 0222); + BOOL acl_readOnly_found = FALSE, curAclPresent, curAclDefaulted; + SID_IDENTIFIER_AUTHORITY userSidAuthority = { + SECURITY_WORLD_SID_AUTHORITY + }; + BYTE *secDesc = 0; + DWORD secDescLen, attr, newAclSize; + ACL_SIZE_INFORMATION ACLSize; + PACL curAcl, newAcl = 0; + WORD j; + SID *userSid = 0; + char *userDomain = 0; + int res = 0; + + /* + * Process the chmod request. + */ + + attr = GetFileAttributesA(nativePath); + + /* + * nativePath not found + */ + + if (attr == 0xffffffff) { + res = -1; + goto done; + } + + /* + * If nativePath is not a directory, there is no special handling. + */ + + if (!(attr & FILE_ATTRIBUTE_DIRECTORY)) { + goto done; + } + + /* + * Set the result to error, if the ACL change is successful it will be + * reset to 0. + */ + + res = -1; + + /* + * Read the security descriptor for the directory. Note the first call + * obtains the size of the security descriptor. + */ + + if (!GetFileSecurityA(nativePath, infoBits, NULL, 0, &secDescLen)) { + DWORD secDescLen2 = 0; + + if (GetLastError() != ERROR_INSUFFICIENT_BUFFER) { + goto done; + } + + secDesc = ckalloc(secDescLen); + if (!GetFileSecurityA(nativePath, infoBits, + (PSECURITY_DESCRIPTOR) secDesc, secDescLen, &secDescLen2) + || (secDescLen < secDescLen2)) { + goto done; + } + } + + /* + * Get the World SID. + */ + + userSid = ckalloc(GetSidLengthRequired((UCHAR) 1)); + InitializeSid(userSid, &userSidAuthority, (BYTE) 1); + *(GetSidSubAuthority(userSid, 0)) = SECURITY_WORLD_RID; + + /* + * If curAclPresent == false then curAcl and curAclDefaulted not valid. + */ + + if (!GetSecurityDescriptorDacl((PSECURITY_DESCRIPTOR) secDesc, + &curAclPresent, &curAcl, &curAclDefaulted)) { + goto done; + } + if (!curAclPresent || !curAcl) { + ACLSize.AclBytesInUse = 0; + ACLSize.AceCount = 0; + } else if (!GetAclInformation(curAcl, &ACLSize, sizeof(ACLSize), + AclSizeInformation)) { + goto done; + } + + /* + * Allocate memory for the new ACL. + */ + + newAclSize = ACLSize.AclBytesInUse + sizeof(ACCESS_DENIED_ACE) + + GetLengthSid(userSid) - sizeof(DWORD); + newAcl = ckalloc(newAclSize); + + /* + * Initialize the new ACL. + */ + + if (!InitializeAcl(newAcl, newAclSize, ACL_REVISION)) { + goto done; + } + + /* + * Add denied to make readonly, this will be known as a "read-only tag". + */ + + if (set_readOnly && !AddAccessDeniedAce(newAcl, ACL_REVISION, + readOnlyMask, userSid)) { + goto done; + } + + acl_readOnly_found = FALSE; + for (j = 0; j < ACLSize.AceCount; j++) { + LPVOID pACE2; + ACE_HEADER *phACE2; + + if (!GetAce(curAcl, j, &pACE2)) { + goto done; + } + + phACE2 = (ACE_HEADER *) pACE2; + + /* + * Do NOT propagate inherited ACEs. + */ + + if (phACE2->AceFlags & INHERITED_ACE) { + continue; + } + + /* + * Skip the "read-only tag" restriction (either added above, or it is + * being removed). + */ + + if (phACE2->AceType == ACCESS_DENIED_ACE_TYPE) { + ACCESS_DENIED_ACE *pACEd = (ACCESS_DENIED_ACE *) phACE2; + + if (pACEd->Mask == readOnlyMask + && EqualSid(userSid, (PSID) &pACEd->SidStart)) { + acl_readOnly_found = TRUE; + continue; + } + } + + /* + * Copy the current ACE from the old to the new ACL. + */ + + if (!AddAce(newAcl, ACL_REVISION, MAXDWORD, (PACL *) pACE2, + ((PACE_HEADER) pACE2)->AceSize)) { + goto done; + } + } + + /* + * Apply the new ACL. + */ + + if (set_readOnly == acl_readOnly_found || SetNamedSecurityInfoA( + (LPSTR) nativePath, SE_FILE_OBJECT, DACL_SECURITY_INFORMATION, + NULL, NULL, newAcl, NULL) == ERROR_SUCCESS) { + res = 0; + } + + done: + if (secDesc) { + ckfree(secDesc); + } + if (newAcl) { + ckfree(newAcl); + } + if (userSid) { + ckfree(userSid); + } + if (userDomain) { + ckfree(userDomain); + } + + if (res != 0) { + return res; + } + + /* + * Run normal chmod command. + */ + + return chmod(nativePath, pmode); +} + +/* + *--------------------------------------------------------------------------- + * + * TestchmodCmd -- + * + * Implements the "testchmod" cmd. Used when testing "file" command. The + * only attribute used by the Windows platform is the user write flag; if + * this is not set, the file is made read-only. Otherwise, the file is + * made read-write. + * + * Results: + * A standard Tcl result. + * + * Side effects: + * Changes permissions of specified files. + * + *--------------------------------------------------------------------------- + */ + +static int +TestchmodCmd( + ClientData dummy, /* Not used. */ + Tcl_Interp *interp, /* Current interpreter. */ + int argc, /* Number of arguments. */ + const char **argv) /* Argument strings. */ +{ + int i, mode; + char *rest; + + if (argc < 2) { + usage: + Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0], + " mode file ?file ...?", NULL); + return TCL_ERROR; + } + + mode = (int) strtol(argv[1], &rest, 8); + if ((rest == argv[1]) || (*rest != '\0')) { + goto usage; + } + + for (i = 2; i < argc; i++) { + Tcl_DString buffer; + const char *translated; + + translated = Tcl_TranslateFileName(interp, argv[i], &buffer); + if (translated == NULL) { + return TCL_ERROR; + } + if (TestplatformChmod(translated, mode) != 0) { + Tcl_AppendResult(interp, translated, ": ", Tcl_PosixError(interp), + NULL); + return TCL_ERROR; + } + Tcl_DStringFree(&buffer); + } + return TCL_OK; +} + +/* + * Local Variables: + * mode: c + * c-basic-offset: 4 + * fill-column: 78 + * End: + */ |