duc_dir *duc_dir_openat(duc_dir *dir, const char *name)
{
if(strcmp(name, "..") == 0) {
/* Special case: go up one directory */
if(dir->devino_parent.dev && dir->devino_parent.ino) {
duc_dir *pdir = duc_dir_new(dir->duc, &dir->devino_parent);
if(pdir == NULL) return NULL;
pdir->path = duc_strdup(dir->path);
dirname(pdir->path);
return pdir;
}
} else {
/* Find given name in dir */
size_t i;
struct duc_dirent *e = dir->ent_list;
for(i=0; i<dir->ent_count; i++) {
if(strcmp(e->name, name) == 0) {
return duc_dir_openent(dir, e);
}
e++;
}
}
return NULL;
}
struct ducrc *ducrc_new(const char *section)
{
struct ducrc *ducrc;
ducrc = duc_malloc(sizeof *ducrc);
ducrc->noptions = 0;
ducrc->section = duc_strdup(section);
return ducrc;
}
int duc_dir_add_ent(struct duc_dir *dir, const char *name, off_t size_apparent, off_t size_actual, uint8_t type, dev_t dev, ino_t ino)
{
if((dir->ent_count+1) * sizeof(struct duc_dirent) > dir->ent_pool) {
dir->ent_pool *= 2;
dir->ent_list = duc_realloc(dir->ent_list, dir->ent_pool);
}
struct duc_dirent *ent = &dir->ent_list[dir->ent_count];
dir->ent_count ++;
ent->name = duc_strdup(name);
ent->size_apparent = size_apparent;
ent->size_actual = size_actual;
ent->type = type;
ent->dev = dev;
ent->ino = ino;
return 0;
}
duc_dir *duc_dir_open(struct duc *duc, const char *path)
{
/* Canonicalized path */
char *path_canon = duc_canonicalize_path(path);
if(!path_canon) {
duc->err = DUC_E_PATH_NOT_FOUND;
return NULL;
}
/* Find top path in database */
char *path_try = duc_strdup(path_canon);
int l = strlen(path_try);
struct duc_devino devino = { 0, 0 };
while(l > 0) {
path_try[l] = '\0';
struct duc_index_report *report;
report = db_read_report(duc, path_try);
if(report) {
devino = report->devino;
free(report);
break;
}
l--;
}
free(path_try);
if(l == 0) {
duc_log(duc, DUC_LOG_FTL, "Path %s not found in database", path_canon);
duc->err = DUC_E_PATH_NOT_FOUND;
free(path_canon);
return NULL;
}
struct duc_dir *dir;
dir = duc_dir_new(duc, &devino);
if(dir == NULL) {
duc->err = DUC_E_PATH_NOT_FOUND;
free(path_canon);
return NULL;
}
char rest[DUC_PATH_MAX];
strncpy(rest, path_canon+l, sizeof rest);
char *name = strtok(rest, "/");
while(dir && name) {
struct duc_dirent *ent = duc_dir_find_child(dir, name);
struct duc_dir *dir_next = NULL;
if(ent) {
dir_next = duc_dir_openent(dir, ent);
}
duc_dir_close(dir);
dir = dir_next;
name = strtok(NULL, "/");
}
if(dir) {
dir->path = strdup(path_canon);
}
free(path_canon);
return dir;
}