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authornobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2015-08-27 04:01:37 +0000
committernobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2015-08-27 04:01:37 +0000
commit262b10210fd597d467d88bdc0a2f3a1efdb80a53 (patch)
treefa238ae5c2459498d399425117b84d8a6b93777c /win32/win32.c
parenta2da0f7e4295115680491abce9f6dc533db11f8a (diff)
win32.c: fchmod
* win32/win32.c (fchmod): implement by using SetFileInformationByHandle. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@51704 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'win32/win32.c')
-rw-r--r--win32/win32.c41
1 files changed, 41 insertions, 0 deletions
diff --git a/win32/win32.c b/win32/win32.c
index a3a76c1..70e95d1 100644
--- a/win32/win32.c
+++ b/win32/win32.c
@@ -7315,6 +7315,47 @@ rb_w32_uchmod(const char *path, int mode)
/* License: Ruby's */
int
+fchmod(int fd, int mode)
+{
+ typedef BOOL (WINAPI *set_file_information_by_handle_func)
+ (HANDLE, int, void*, DWORD);
+ static set_file_information_by_handle_func set_file_info =
+ (set_file_information_by_handle_func)-1;
+
+ /* from winbase.h of the mingw-w64 runtime package. */
+ struct {
+ LARGE_INTEGER CreationTime;
+ LARGE_INTEGER LastAccessTime;
+ LARGE_INTEGER LastWriteTime;
+ LARGE_INTEGER ChangeTime;
+ DWORD FileAttributes;
+ } info = {0, 0, 0}; /* fields with 0 are unchanged */
+ HANDLE h = (HANDLE)_get_osfhandle(fd);
+
+ if (h == INVALID_HANDLE_VALUE) {
+ errno = EBADF;
+ return -1;
+ }
+ if (set_file_info == (set_file_information_by_handle_func)-1) {
+ set_file_info = (set_file_information_by_handle_func)
+ get_proc_address("kernel32", "SetFileInformationByHandle", NULL);
+ }
+ if (!set_file_info) {
+ errno = ENOSYS;
+ return -1;
+ }
+
+ info.FileAttributes = FILE_ATTRIBUTE_NORMAL;
+ if (!(mode & 0200)) info.FileAttributes |= FILE_ATTRIBUTE_READONLY;
+ if (!set_file_info(h, 0, &info, sizeof(info))) {
+ errno = map_errno(GetLastError());
+ return -1;
+ }
+ return 0;
+}
+
+/* License: Ruby's */
+int
rb_w32_isatty(int fd)
{
DWORD mode;