libfstools: remove dead source file

Signed-off-by: Jo-Philipp Wich <jow@openwrt.org>

diff --git a/libfstools/jffs2.c b/libfstools/jffs2.c
deleted file mode 100644 (file)
index 1b8e1d9..0000000
--- a/libfstools/jffs2.c
+++ /dev/null
@@ -1,236 +0,0 @@
-/*
- * Copyright (C) 2014 John Crispin <blogic@openwrt.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License version 2.1
- * as published by the Free Software Foundation
- *
- * 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.
- */
-
-#include <sys/stat.h>
-#include <sys/types.h>
-#include <sys/mount.h>
-
-#include <asm/byteorder.h>
-
-#include <errno.h>
-#include <string.h>
-#include <stdio.h>
-#include <unistd.h>
-#include <stdlib.h>
-#include <glob.h>
-#include <errno.h>
-#include <dirent.h>
-#include <fcntl.h>
-
-#include "libfstools.h"
-#include "volume.h"
-
-#define SWITCH_JFFS2 "/tmp/.switch_jffs2"
-
-void
-foreachdir(const char *dir, int (*cb)(const char*))
-{
-       char globdir[256];
-       glob_t gl;
-       int j;
-
-       if (dir[strlen(dir) - 1] == '/')
-               snprintf(globdir, 256, "%s*", dir);
-       else
-               snprintf(globdir, 256, "%s/*", dir);
-
-       if (!glob(globdir, GLOB_NOESCAPE | GLOB_MARK | GLOB_ONLYDIR, NULL, &gl))
-               for (j = 0; j < gl.gl_pathc; j++)
-                       foreachdir(gl.gl_pathv[j], cb);
-
-       cb(dir);
-}
-
-static int
-jffs2_mount(struct volume *v)
-{
-       if (mkdir("/tmp/overlay", 0755)) {
-               fprintf(stderr, "failed to mkdir /tmp/overlay: %s\n", strerror(errno));
-               return -1;
-       }
-
-       if (mount(v->blk, "/tmp/overlay", "jffs2", MS_NOATIME, NULL)) {
-               fprintf(stderr, "failed to mount -t jffs2 %s /tmp/overlay: %s\n", v->blk, strerror(errno));
-               return -1;
-       }
-
-       return volume_init(v);
-}
-
-static int
-switch2jffs(struct volume *v)
-{
-       struct stat s;
-       int ret;
-
-       if (!stat(SWITCH_JFFS2, &s)) {
-               fprintf(stderr, "jffs2 switch already running\n");
-               return -1;
-       }
-
-       creat("/tmp/.switch_jffs2", 0600);
-       ret = mount(v->blk, "/rom/overlay", "jffs2", MS_NOATIME, NULL);
-       unlink("/tmp/.switch_jffs2");
-       if (ret) {
-               fprintf(stderr, "failed - mount -t jffs2 %s /rom/overlay: %s\n", v->blk, strerror(errno));
-               return -1;
-       }
-
-       if (mount("none", "/", NULL, MS_NOATIME | MS_REMOUNT, 0)) {
-               fprintf(stderr, "failed - mount -o remount,ro none: %s\n", strerror(errno));
-               return -1;
-       }
-
-       system("cp -a /tmp/root/* /rom/overlay");
-
-       if (pivot("/rom", "/mnt")) {
-               fprintf(stderr, "failed - pivot /rom /mnt: %s\n", strerror(errno));
-               return -1;
-       }
-
-       if (mount_move("/mnt", "/tmp/root", "")) {
-               fprintf(stderr, "failed - mount -o move /mnt /tmp/root %s\n", strerror(errno));
-               return -1;
-       }
-
-       return fopivot("/overlay", "/rom");
-}
-
-int
-handle_whiteout(const char *dir)
-{
-       struct stat s;
-       char link[256];
-       ssize_t sz;
-       struct dirent **namelist;
-       int n;
-
-       n = scandir(dir, &namelist, NULL, NULL);
-
-       if (n < 1)
-               return -1;
-
-       while (n--) {
-               char file[256];
-
-               snprintf(file, sizeof(file), "%s%s", dir, namelist[n]->d_name);
-               if (!lstat(file, &s) && S_ISLNK(s.st_mode)) {
-                       sz = readlink(file, link, sizeof(link) - 1);
-                       if (sz > 0) {
-                               char *orig;
-
-                               link[sz] = '\0';
-                               orig = strstr(&file[1], "/");
-                               if (orig && !strcmp(link, "(overlay-whiteout)"))
-                                       unlink(orig);
-                       }
-               }
-               free(namelist[n]);
-       }
-       free(namelist);
-
-       return 0;
-}
-
-int
-jffs2_switch(struct volume *v)
-{
-       char *mp;
-       int ret = -1;
-
-       if (find_mount_overlay("overlayfs:/tmp/root"))
-               return -1;
-
-       if (find_filesystem("overlay")) {
-               fprintf(stderr, "overlayfs not found\n");
-               return ret;
-       }
-
-       mp = find_mount_point(v->blk, 0);
-       if (mp) {
-               fprintf(stderr, "rootfs_data:%s is already mounted as %s\n", v->blk, mp);
-               return -1;
-       }
-
-       switch (volume_identify(v)) {
-       case FS_NONE:
-               fprintf(stderr, "no jffs2 marker found\n");
-               /* fall through */
-
-       case FS_DEADCODE:
-               ret = switch2jffs(v);
-               if (!ret) {
-                       fprintf(stderr, "doing fo cleanup\n");
-                       umount2("/tmp/root", MNT_DETACH);
-                       foreachdir("/overlay/", handle_whiteout);
-               }
-               break;
-
-       case FS_JFFS2:
-               ret = jffs2_mount(v);
-               if (ret)
-                       break;
-               if (mount_move("/tmp", "", "/overlay") || fopivot("/overlay", "/rom")) {
-                       fprintf(stderr, "switching to jffs2 failed\n");
-                       ret = -1;
-               }
-               break;
-       }
-
-       return ret;
-}
-
-static int mount_overlay_fs(struct volume *v)
-{
-       if (mkdir("/tmp/overlay", 0755)) {
-               fprintf(stderr, "failed to mkdir /tmp/overlay: %s\n", strerror(errno));
-               return -1;
-       }
-
-       if (mount(v->blk, "/tmp/overlay", "jffs2", MS_NOATIME, NULL)) {
-               fprintf(stderr, "failed to mount -t jffs2 %s /tmp/overlay: %s\n",
-                               v->blk, strerror(errno));
-               return -1;
-       }
-
-       volume_init(v);
-
-       return -1;
-}
-
-int mount_overlay(struct volume *v)
-{
-       char *mp;
-
-       mp = find_mount_point(v->blk, 0);
-       if (mp) {
-               fprintf(stderr, "rootfs_data:%s is already mounted as %s\n", v->blk, mp);
-               return -1;
-       }
-
-       mount_overlay_fs(v);
-
-       extroot_prefix = "/tmp/overlay";
-       if (!mount_extroot()) {
-               fprintf(stderr, "fs-state: switched to extroot\n");
-               return 0;
-       }
-
-       fprintf(stderr, "switching to jffs2\n");
-       if (mount_move("/tmp", "", "/overlay") || fopivot("/overlay", "/rom")) {
-               fprintf(stderr, "switching to jffs2 failed - fallback to ramoverlay\n");
-               return ramoverlay();
-       }
-
-       return -1;
-}