/** %l: link target */
static int bfs_printf_l(FILE *file, const struct bfs_printf *directive, struct BFTW *ftwbuf) {
if (ftwbuf->typeflag != BFTW_LNK) {
return 0;
}
char *target = xreadlinkat(ftwbuf->at_fd, ftwbuf->at_path, 0);
if (!target) {
return -1;
}
int ret = fprintf(file, directive->str, target);
free(target);
return ret;
}
struct dirtree *dirtree_add_node(struct dirtree *parent, char *name, int flags)
{
struct dirtree *dt = NULL;
struct stat st;
int len = 0, linklen = 0;
if (name) {
// open code this because haven't got node to call dirtree_parentfd() on yet
int fd = parent ? parent->data : AT_FDCWD;
if (xfstatat(fd, name, &st, AT_SYMLINK_NOFOLLOW*!(flags&DIRTREE_SYMFOLLOW)))
goto error;
if (S_ISLNK(st.st_mode)) {
if (0>(linklen = xreadlinkat(fd, name, libbuf, 4095))) goto error;
libbuf[linklen++]=0;
}
len = strlen(name);
}
dt = xzalloc((len = sizeof(struct dirtree)+len+1)+linklen);
dt->parent = parent;
if (name) {
memcpy(&(dt->st), &st, sizeof(struct stat));
strcpy(dt->name, name);
if (linklen) {
dt->symlink = memcpy(len+(char *)dt, libbuf, linklen);
dt->data = --linklen;
}
}
return dt;
error:
if (!(flags&DIRTREE_SHUTUP) && notdotdot(name)) {
char *path = parent ? dirtree_path(parent, 0) : "";
perror_msg("%s%s%s", path, parent ? "/" : "", name);
if (parent) free(path);
}
if (parent) parent->symlink = (char *)1;
free(dt);
return 0;
}
