/* the Music Player Daemon (MPD) * Copyright (C) 2003-2007 by Warren Dukes (warren.dukes@gmail.com) * This project's homepage is: http://www.musicpd.org * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include "directory_save.h" #include "directory.h" #include "song.h" #include "path.h" #include "song_save.h" #include <assert.h> #include <string.h> #define DIRECTORY_MTIME "mtime: " #define DIRECTORY_BEGIN "begin: " #define DIRECTORY_END "end: " /** * The quark used for GError.domain. */ static inline GQuark directory_quark(void) { return g_quark_from_static_string("directory"); } /* TODO error checking */ int directory_save(FILE *fp, struct directory *directory) { struct dirvec *children = &directory->children; size_t i; int retv; if (!directory_is_root(directory)) { fprintf(fp, DIRECTORY_MTIME "%lu\n", (unsigned long)directory->mtime); retv = fprintf(fp, "%s%s\n", DIRECTORY_BEGIN, directory_get_path(directory)); if (retv < 0) return -1; } for (i = 0; i < children->nr; ++i) { struct directory *cur = children->base[i]; char *base = g_path_get_basename(cur->path); retv = fprintf(fp, DIRECTORY_DIR "%s\n", base); g_free(base); if (retv < 0) return -1; if (directory_save(fp, cur) < 0) return -1; } songvec_save(fp, &directory->songs); if (!directory_is_root(directory) && fprintf(fp, DIRECTORY_END "%s\n", directory_get_path(directory)) < 0) return -1; return 0; } bool directory_load(FILE *fp, struct directory *directory, GError **error) { char buffer[MPD_PATH_MAX * 2]; char key[MPD_PATH_MAX * 2]; char *name; bool success; while (fgets(buffer, sizeof(buffer), fp) && !g_str_has_prefix(buffer, DIRECTORY_END)) { if (g_str_has_prefix(buffer, DIRECTORY_DIR)) { struct directory *subdir; g_strchomp(buffer); strcpy(key, &(buffer[strlen(DIRECTORY_DIR)])); if (!fgets(buffer, sizeof(buffer), fp)) { g_set_error(error, directory_quark(), 0, "Unexpected end of file"); return false; } if (g_str_has_prefix(buffer, DIRECTORY_MTIME)) { directory->mtime = g_ascii_strtoull(buffer + sizeof(DIRECTORY_MTIME) - 1, NULL, 10); if (!fgets(buffer, sizeof(buffer), fp)) { g_set_error(error, directory_quark(), 0, "Unexpected end of file"); return false; } } if (!g_str_has_prefix(buffer, DIRECTORY_BEGIN)) { g_set_error(error, directory_quark(), 0, "Malformed line: %s", buffer); return false; } g_strchomp(buffer); name = &(buffer[strlen(DIRECTORY_BEGIN)]); if (!g_str_has_prefix(name, directory->path) != 0) { g_set_error(error, directory_quark(), 0, "Wrong path in database: '%s' in '%s'", name, directory->path); return false; } subdir = directory_get_child(directory, name); if (subdir != NULL) { assert(subdir->parent == directory); } else { subdir = directory_new(name, directory); dirvec_add(&directory->children, subdir); } success = directory_load(fp, subdir, error); if (!success) return false; } else if (g_str_has_prefix(buffer, SONG_BEGIN)) { readSongInfoIntoList(fp, &directory->songs, directory); } else { g_set_error(error, directory_quark(), 0, "Malformed line: %s", buffer); return false; } } return true; }