1 files changed, 89 insertions, 0 deletions
diff --git a/filesystem-win.c b/filesystem-win.c
new file mode 100644
index 0000000..c6c64dd
--- /dev/null
+++ b/filesystem-win.c
@@ -0,0 +1,89 @@
+#include "filesystem.h"
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <io.h>
+
+FsType fs_path_type(char const *path) {
+	struct _stat statbuf = {0};
+	if (_stat(path, &statbuf) != 0)
+		return FS_NON_EXISTENT;
+	if (statbuf.st_mode & _S_IFREG)
+		return FS_FILE;
+	if (statbuf.st_mode & _S_IFDIR)
+		return FS_DIRECTORY;
+	return FS_OTHER;
+}
+
+FsPermission fs_path_permission(char const *path) {
+	FsPermission permission = 0;
+	if (_access(path, 04) == 0) permission |= FS_PERMISSION_READ;
+	if (_access(path, 02) == 0) permission |= FS_PERMISSION_WRITE;
+	return permission;
+}
+
+bool fs_file_exists(char const *path) {
+	return fs_path_type(path) == FS_FILE;
+}
+
+char **fs_list_directory(char const *dirname) {
+	char file_pattern[256] = {0};
+	char **ret = NULL;
+	WIN32_FIND_DATA find_data;
+	HANDLE fhandle;
+	assert(*dirname);
+	sprintf_s(file_pattern, sizeof file_pattern, "%s%s*", dirname,
+		dirname[strlen(dirname) - 1] == PATH_SEPARATOR ? "" : PATH_SEPARATOR_STR);
+	fhandle = FindFirstFileA(file_pattern, &find_data);
+	if (fhandle != INVALID_HANDLE_VALUE) {
+		// first, figure out number of files
+		int nfiles = 1, idx = 0;
+		char **files;
+		while (FindNextFile(fhandle, &find_data))  {
+			++nfiles;
+		}
+		FindClose(fhandle);
+		// now, fill out files array
+		files = malloc((nfiles + 1) * sizeof *files);
+		if (files) {
+			fhandle = FindFirstFileA(file_pattern, &find_data);
+			if (fhandle != INVALID_HANDLE_VALUE) {
+				do {
+					if (idx < nfiles) {
+						char *dup = _strdup(find_data.cFileName); 
+						if (dup) {
+							files[idx++] = dup;
+						} else break; // stop now
+					}
+				} while (FindNextFile(fhandle, &find_data));
+				files[idx] = NULL;
+				FindClose(fhandle);
+				ret = files;
+			}
+		}
+	}
+	return ret;
+}
+
+int fs_mkdir(char const *path) {
+	if (CreateDirectoryA(path, NULL)) {
+		// directory created successfully
+		return 1;
+	} else {
+		if (GetLastError() == ERROR_ALREADY_EXISTS) // directory already exists
+			return 0;
+		else
+			return -1; // some other error
+	}
+}
+
+int fs_get_cwd(char *buf, size_t buflen) {
+	assert(buf && buflen);
+	DWORD pathlen = GetCurrentDirectory((DWORD)buflen, buf);
+	if (pathlen == 0) {
+		return -1;
+	} else if (pathlen < buflen) { // it's confusing, but this is < and not <=
+		return 1;
+	} else {
+		return 0;
+	}
+}