diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/os_win32.c | 180 | ||||
| -rw-r--r-- | src/version.c | 2 |
2 files changed, 182 insertions, 0 deletions
diff --git a/src/os_win32.c b/src/os_win32.c index 972f10da5..7c2051f7f 100644 --- a/src/os_win32.c +++ b/src/os_win32.c @@ -33,6 +33,7 @@ // cproto fails on missing include files #ifndef PROTO # include <process.h> +# include <winternl.h> #endif #undef chdir @@ -7254,6 +7255,184 @@ copy_infostreams(char_u *from, char_u *to) } /* + * ntdll.dll definitions + */ +#define FileEaInformation 7 +#ifndef STATUS_SUCCESS +# define STATUS_SUCCESS ((NTSTATUS) 0x00000000L) +#endif + +typedef struct _FILE_FULL_EA_INFORMATION_ { + ULONG NextEntryOffset; + UCHAR Flags; + UCHAR EaNameLength; + USHORT EaValueLength; + CHAR EaName[1]; +} FILE_FULL_EA_INFORMATION_, *PFILE_FULL_EA_INFORMATION_; + +typedef struct _FILE_EA_INFORMATION_ { + ULONG EaSize; +} FILE_EA_INFORMATION_, *PFILE_EA_INFORMATION_; + +typedef NTSTATUS (NTAPI *PfnNtOpenFile)( + PHANDLE FileHandle, + ACCESS_MASK DesiredAccess, + POBJECT_ATTRIBUTES ObjectAttributes, + PIO_STATUS_BLOCK IoStatusBlock, + ULONG ShareAccess, + ULONG OpenOptions); +typedef NTSTATUS (NTAPI *PfnNtClose)( + HANDLE Handle); +typedef NTSTATUS (NTAPI *PfnNtSetEaFile)( + HANDLE FileHandle, + PIO_STATUS_BLOCK IoStatusBlock, + PVOID Buffer, + ULONG Length); +typedef NTSTATUS (NTAPI *PfnNtQueryEaFile)( + HANDLE FileHandle, + PIO_STATUS_BLOCK IoStatusBlock, + PVOID Buffer, + ULONG Length, + BOOLEAN ReturnSingleEntry, + PVOID EaList, + ULONG EaListLength, + PULONG EaIndex, + BOOLEAN RestartScan); +typedef NTSTATUS (NTAPI *PfnNtQueryInformationFile)( + HANDLE FileHandle, + PIO_STATUS_BLOCK IoStatusBlock, + PVOID FileInformation, + ULONG Length, + FILE_INFORMATION_CLASS FileInformationClass); +typedef VOID (NTAPI *PfnRtlInitUnicodeString)( + PUNICODE_STRING DestinationString, + PCWSTR SourceString); + +PfnNtOpenFile pNtOpenFile = NULL; +PfnNtClose pNtClose = NULL; +PfnNtSetEaFile pNtSetEaFile = NULL; +PfnNtQueryEaFile pNtQueryEaFile = NULL; +PfnNtQueryInformationFile pNtQueryInformationFile = NULL; +PfnRtlInitUnicodeString pRtlInitUnicodeString = NULL; + +/* + * Load ntdll.dll functions. + */ + static BOOL +load_ntdll(void) +{ + static int loaded = -1; + + if (loaded == -1) + { + HMODULE hNtdll = GetModuleHandle("ntdll.dll"); + if (hNtdll != NULL) + { + pNtOpenFile = (PfnNtOpenFile) GetProcAddress(hNtdll, "NtOpenFile"); + pNtClose = (PfnNtClose) GetProcAddress(hNtdll, "NtClose"); + pNtSetEaFile = (PfnNtSetEaFile) + GetProcAddress(hNtdll, "NtSetEaFile"); + pNtQueryEaFile = (PfnNtQueryEaFile) + GetProcAddress(hNtdll, "NtQueryEaFile"); + pNtQueryInformationFile = (PfnNtQueryInformationFile) + GetProcAddress(hNtdll, "NtQueryInformationFile"); + pRtlInitUnicodeString = (PfnRtlInitUnicodeString) + GetProcAddress(hNtdll, "RtlInitUnicodeString"); + } + if (pNtOpenFile == NULL + || pNtClose == NULL + || pNtSetEaFile == NULL + || pNtQueryEaFile == NULL + || pNtQueryInformationFile == NULL + || pRtlInitUnicodeString == NULL) + loaded = FALSE; + else + loaded = TRUE; + } + return (BOOL) loaded; +} + +/* + * Copy extended attributes (EA) from file "from" to file "to". + */ + static void +copy_extattr(char_u *from, char_u *to) +{ + char_u *fromf = NULL; + char_u *tof = NULL; + WCHAR *fromw = NULL; + WCHAR *tow = NULL; + UNICODE_STRING u; + HANDLE h; + OBJECT_ATTRIBUTES oa; + IO_STATUS_BLOCK iosb; + FILE_EA_INFORMATION_ eainfo = {0}; + void *ea = NULL; + + if (!load_ntdll()) + return; + + // Convert the file names to the fully qualified object names. + fromf = alloc(STRLEN(from) + 5); + tof = alloc(STRLEN(to) + 5); + if (fromf == NULL || tof == NULL) + goto theend; + STRCPY(fromf, "\\??\\"); + STRCAT(fromf, from); + STRCPY(tof, "\\??\\"); + STRCAT(tof, to); + + // Convert the names to wide characters. + fromw = enc_to_utf16(fromf, NULL); + tow = enc_to_utf16(tof, NULL); + if (fromw == NULL || tow == NULL) + goto theend; + + // Get the EA. + pRtlInitUnicodeString(&u, fromw); + InitializeObjectAttributes(&oa, &u, 0, NULL, NULL); + if (pNtOpenFile(&h, FILE_READ_EA, &oa, &iosb, 0, + FILE_NON_DIRECTORY_FILE) != STATUS_SUCCESS) + goto theend; + pNtQueryInformationFile(h, &iosb, &eainfo, sizeof(eainfo), + FileEaInformation); + if (eainfo.EaSize != 0) + { + ea = alloc(eainfo.EaSize); + if (ea != NULL) + { + if (pNtQueryEaFile(h, &iosb, ea, eainfo.EaSize, FALSE, + NULL, 0, NULL, TRUE) != STATUS_SUCCESS) + { + vim_free(ea); + ea = NULL; + } + } + } + pNtClose(h); + + // Set the EA. + if (ea != NULL) + { + pRtlInitUnicodeString(&u, tow); + InitializeObjectAttributes(&oa, &u, 0, NULL, NULL); + if (pNtOpenFile(&h, FILE_WRITE_EA, &oa, &iosb, 0, + FILE_NON_DIRECTORY_FILE) != STATUS_SUCCESS) + goto theend; + + pNtSetEaFile(h, &iosb, ea, eainfo.EaSize); + pNtClose(h); + } + +theend: + vim_free(fromf); + vim_free(tof); + vim_free(fromw); + vim_free(tow); + vim_free(ea); +} + +/* * Copy file attributes from file "from" to file "to". * For Windows NT and later we copy info streams. * Always returns zero, errors are ignored. @@ -7263,6 +7442,7 @@ mch_copy_file_attribute(char_u *from, char_u *to) { // File streams only work on Windows NT and later. copy_infostreams(from, to); + copy_extattr(from, to); return 0; } diff --git a/src/version.c b/src/version.c index 2ae792c87..cc8c728f9 100644 --- a/src/version.c +++ b/src/version.c @@ -751,6 +751,8 @@ static char *(features[]) = static int included_patches[] = { /* Add new patch number below this line */ /**/ + 2451, +/**/ 2450, /**/ 2449, |