1 files changed, 122 insertions, 0 deletions
diff --git a/src/util/win32/dir.c b/src/util/win32/dir.c
new file mode 100644
index 000000000..44052caf0
--- /dev/null
+++ b/src/util/win32/dir.c
@@ -0,0 +1,122 @@
+/*
+ * Copyright (C) the libgit2 contributors. All rights reserved.
+ *
+ * This file is part of libgit2, distributed under the GNU GPL v2 with
+ * a Linking Exception. For full terms see the included COPYING file.
+ */
+
+#include "dir.h"
+
+#define GIT__WIN32_NO_WRAP_DIR
+#include "posix.h"
+
+git__DIR *git__opendir(const char *dir)
+{
+	git_win32_path filter_w;
+	git__DIR *new = NULL;
+	size_t dirlen, alloclen;
+
+	if (!dir || !git_win32__findfirstfile_filter(filter_w, dir))
+		return NULL;
+
+	dirlen = strlen(dir);
+
+	if (GIT_ADD_SIZET_OVERFLOW(&alloclen, sizeof(*new), dirlen) ||
+		GIT_ADD_SIZET_OVERFLOW(&alloclen, alloclen, 1) ||
+		!(new = git__calloc(1, alloclen)))
+		return NULL;
+
+	memcpy(new->dir, dir, dirlen);
+
+	new->h = FindFirstFileW(filter_w, &new->f);
+
+	if (new->h == INVALID_HANDLE_VALUE) {
+		git_error_set(GIT_ERROR_OS, "could not open directory '%s'", dir);
+		git__free(new);
+		return NULL;
+	}
+
+	new->first = 1;
+	return new;
+}
+
+int git__readdir_ext(
+	git__DIR *d,
+	struct git__dirent *entry,
+	struct git__dirent **result,
+	int *is_dir)
+{
+	if (!d || !entry || !result || d->h == INVALID_HANDLE_VALUE)
+		return -1;
+
+	*result = NULL;
+
+	if (d->first)
+		d->first = 0;
+	else if (!FindNextFileW(d->h, &d->f)) {
+		if (GetLastError() == ERROR_NO_MORE_FILES)
+			return 0;
+		git_error_set(GIT_ERROR_OS, "could not read from directory '%s'", d->dir);
+		return -1;
+	}
+
+	/* Convert the path to UTF-8 */
+	if (git_win32_path_to_utf8(entry->d_name, d->f.cFileName) < 0)
+		return -1;
+
+	entry->d_ino = 0;
+
+	*result = entry;
+
+	if (is_dir != NULL)
+		*is_dir = ((d->f.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) != 0);
+
+	return 0;
+}
+
+struct git__dirent *git__readdir(git__DIR *d)
+{
+	struct git__dirent *result;
+	if (git__readdir_ext(d, &d->entry, &result, NULL) < 0)
+		return NULL;
+	return result;
+}
+
+void git__rewinddir(git__DIR *d)
+{
+	git_win32_path filter_w;
+
+	if (!d)
+		return;
+
+	if (d->h != INVALID_HANDLE_VALUE) {
+		FindClose(d->h);
+		d->h = INVALID_HANDLE_VALUE;
+		d->first = 0;
+	}
+
+	if (!git_win32__findfirstfile_filter(filter_w, d->dir))
+		return;
+
+	d->h = FindFirstFileW(filter_w, &d->f);
+
+	if (d->h == INVALID_HANDLE_VALUE)
+		git_error_set(GIT_ERROR_OS, "could not open directory '%s'", d->dir);
+	else
+		d->first = 1;
+}
+
+int git__closedir(git__DIR *d)
+{
+	if (!d)
+		return 0;
+
+	if (d->h != INVALID_HANDLE_VALUE) {
+		FindClose(d->h);
+		d->h = INVALID_HANDLE_VALUE;
+	}
+
+	git__free(d);
+	return 0;
+}
+