- return lbx_open(f, &lbx_default_fops, NULL, name);
+ return fclose((FILE *)f);
+}
+
+static int pipe_close(void *f)
+{
+ struct lbx_pipe_state *p = f;
+ int rc;
+
+ rc = fclose(p->f);
+ free(p);
+ return rc;
+}
+
+static char *last_component(const char *name)
+{
+ char *c;
+
+ /* TODO: Handle other path separators. */
+ c = strrchr(name, '/');
+ if (!c)
+ return (char *)name;
+ return c+1;
+}
+
+struct lbx_state *lbx_fopen(const char *file)
+{
+ const char *name = last_component(file);
+ struct lbx_pipe_state *p;
+ FILE *f;
+
+ f = fopen(file, "rb");
+ if (!f)
+ return NULL;
+
+ if (fseek(f, 0, SEEK_CUR) == 0)
+ return lbx_open(f, &lbx_default_fops, file_close, name);
+
+ p = malloc(sizeof *p);
+ if (!p) {
+ fclose(f);
+ return NULL;
+ }
+
+ *p = (struct lbx_pipe_state) { .f = f };
+ return lbx_open(p, &lbx_pipe_fops, pipe_close, name);