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| author | Ron Yorston <rmy@pobox.com> | 2019-01-05 14:16:50 +0000 |
|---|---|---|
| committer | Ron Yorston <rmy@pobox.com> | 2019-01-05 14:16:50 +0000 |
| commit | fa96aa8d70eb1dfd7b3550fab417a43b3a507a6d (patch) | |
| tree | 2b7d4c0a4a56175018f28e7e116a3dcdfb78e06a /win32 | |
| parent | da7d205446459dfa1ba7bb46206955383dc6a420 (diff) | |
| download | busybox-w32-fa96aa8d70eb1dfd7b3550fab417a43b3a507a6d.tar.gz busybox-w32-fa96aa8d70eb1dfd7b3550fab417a43b3a507a6d.tar.bz2 busybox-w32-fa96aa8d70eb1dfd7b3550fab417a43b3a507a6d.zip | |
busybox: add --uninstall option
Add an option to allow hard links to be removed.
busybox --uninstall file
removes all hard links to the given file (including the file itself.)
Since Microsoft Windows refuses to delete a running executable a
BusyBox binary is unable to remove links to itself.
busybox --uninstall -n file
displays the names of all hard links to the given file.
Although this feature is couched in terms of uninstalling BusyBox
it's actually quite general: it can be used to delete or display
hard links to any file.
Diffstat (limited to 'win32')
| -rw-r--r-- | win32/mingw.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/win32/mingw.c b/win32/mingw.c index c420992d5..8d1da5199 100644 --- a/win32/mingw.c +++ b/win32/mingw.c | |||
| @@ -1289,3 +1289,42 @@ ULONGLONG CompatGetTickCount64(void) | |||
| 1289 | return GetTickCount64(); | 1289 | return GetTickCount64(); |
| 1290 | } | 1290 | } |
| 1291 | #endif | 1291 | #endif |
| 1292 | |||
| 1293 | #if ENABLE_FEATURE_INSTALLER | ||
| 1294 | /* | ||
| 1295 | * Enumerate the names of all hard links to a file. The first call | ||
| 1296 | * provides the file name as the first argument; subsequent calls must | ||
| 1297 | * set the first argument to NULL. Returns 0 on error or when there are | ||
| 1298 | * no more links. | ||
| 1299 | */ | ||
| 1300 | int enumerate_links(const char *file, char *name) | ||
| 1301 | { | ||
| 1302 | static HANDLE h = INVALID_HANDLE_VALUE; | ||
| 1303 | char aname[PATH_MAX]; | ||
| 1304 | wchar_t wname[PATH_MAX]; | ||
| 1305 | DWORD length = PATH_MAX; | ||
| 1306 | DECLARE_PROC_ADDR(HANDLE, FindFirstFileNameW, LPCWSTR, DWORD, LPDWORD, | ||
| 1307 | PWSTR); | ||
| 1308 | DECLARE_PROC_ADDR(BOOL, FindNextFileNameW, HANDLE, LPDWORD, PWSTR); | ||
| 1309 | |||
| 1310 | if (!INIT_PROC_ADDR(kernel32.dll, FindFirstFileNameW) || | ||
| 1311 | !INIT_PROC_ADDR(kernel32.dll, FindNextFileNameW)) | ||
| 1312 | return 0; | ||
| 1313 | |||
| 1314 | if (file != NULL) { | ||
| 1315 | wchar_t wfile[PATH_MAX]; | ||
| 1316 | MultiByteToWideChar(CP_ACP, 0, file, -1, wfile, PATH_MAX); | ||
| 1317 | h = FindFirstFileNameW(wfile, 0, &length, wname); | ||
| 1318 | if (h == INVALID_HANDLE_VALUE) | ||
| 1319 | return 0; | ||
| 1320 | } | ||
| 1321 | else if (!FindNextFileNameW(h, &length, wname)) { | ||
| 1322 | FindClose(h); | ||
| 1323 | h = INVALID_HANDLE_VALUE; | ||
| 1324 | return 0; | ||
| 1325 | } | ||
| 1326 | WideCharToMultiByte(CP_ACP, 0, wname, -1, aname, PATH_MAX, NULL, NULL); | ||
| 1327 | realpath(aname, name); | ||
| 1328 | return 1; | ||
| 1329 | } | ||
| 1330 | #endif | ||