add dirent wrapper

git-svn-id: http://svn2.nishi.boats/svn/milsko/trunk@344 b9cfdab3-6d41-4d17-bbe4-086880011989

src/directory.c

@@ -0,0 +1,81 @@
+/* $Id$ */
+#include <Mw/Milsko.h>
+
+#ifdef _WIN32
+#include <windows.h>
+#endif
+
+#ifdef _WIN32
+typedef struct dir {
+	HANDLE		hFind;
+	WIN32_FIND_DATA ffd;
+	int		first;
+} dir_t;
+#else
+typedef struct dir {
+	DIR* dir;
+} dir_t;
+#endif
+
+void* MwDirectoryOpen(const char* path) {
+	dir_t* dir = malloc(sizeof(*dir));
+#ifdef _WIN32
+	char* p = malloc(strlen(path) + 2 + 1);
+	strcpy(p, path);
+	strcat(p, "/*");
+	if((dir->hFind = FindFirstFile(p, &dir->ffd)) == INVALID_HANDLE_VALUE) {
+		free(p);
+		free(dir);
+		return NULL;
+	}
+	free(p);
+	dir->first = 1;
+#else
+	if((dir->dir = opendir(path)) == NULL) {
+		free(dir);
+		return NULL;
+	}
+#endif
+
+	return dir;
+}
+
+void MwDirectoryClose(void* handle) {
+	dir_t* dir = handle;
+#ifdef _WIN32
+	FindClose(dir->hFind);
+#else
+	closedir(dir->dir);
+#endif
+	free(handle);
+}
+
+MwDirectoryEntry* MwDirectoryRead(void* handle) {
+	dir_t*		  dir	= handle;
+	MwDirectoryEntry* entry = malloc(sizeof(*entry));
+#ifdef _WIN32
+	if(dir->first) {
+		dir->first = 0;
+	} else if(FindNextFile(dir->hFind, &dir->ffd) == 0) {
+		free(entry);
+		return NULL;
+	}
+	entry->name = malloc(strlen(dir->ffd.cFileName) + 1);
+	strcpy(entry->name, dir->ffd.cFileName);
+#else
+	struct dirent* d;
+	if((d = readdir(dir->dir)) == NULL) {
+		free(entry);
+		return NULL;
+	}
+	entry->name = malloc(strlen(d->d_name) + 1);
+	strcpy(entry->name, d->d_name);
+#endif
+
+	return entry;
+}
+
+void MwDirectoryFreeEntry(MwDirectoryEntry* entry) {
+	free(entry->name);
+	free(entry);
+}