// https://syzkaller.appspot.com/bug?id=0a52da0bbfd5ff2cd097edb1607fd2bda63a1c4d
// autogenerated by syzkaller (https://github.com/google/syzkaller)

#define _GNU_SOURCE

#include <dirent.h>
#include <endian.h>
#include <errno.h>
#include <fcntl.h>
#include <setjmp.h>
#include <signal.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/ioctl.h>
#include <sys/mman.h>
#include <sys/mount.h>
#include <sys/prctl.h>
#include <sys/stat.h>
#include <sys/syscall.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <time.h>
#include <unistd.h>

#include <linux/loop.h>

#ifndef __NR_memfd_create
#define __NR_memfd_create 319
#endif

static unsigned long long procid;

static void sleep_ms(uint64_t ms)
{
  usleep(ms * 1000);
}

static uint64_t current_time_ms(void)
{
  struct timespec ts;
  if (clock_gettime(CLOCK_MONOTONIC, &ts))
    exit(1);
  return (uint64_t)ts.tv_sec * 1000 + (uint64_t)ts.tv_nsec / 1000000;
}

static void use_temporary_dir(void)
{
  char tmpdir_template[] = "./syzkaller.XXXXXX";
  char* tmpdir = mkdtemp(tmpdir_template);
  if (!tmpdir)
    exit(1);
  if (chmod(tmpdir, 0777))
    exit(1);
  if (chdir(tmpdir))
    exit(1);
}

static bool write_file(const char* file, const char* what, ...)
{
  char buf[1024];
  va_list args;
  va_start(args, what);
  vsnprintf(buf, sizeof(buf), what, args);
  va_end(args);
  buf[sizeof(buf) - 1] = 0;
  int len = strlen(buf);
  int fd = open(file, O_WRONLY | O_CLOEXEC);
  if (fd == -1)
    return false;
  if (write(fd, buf, len) != len) {
    int err = errno;
    close(fd);
    errno = err;
    return false;
  }
  close(fd);
  return true;
}

//% This code is derived from puff.{c,h}, found in the zlib development. The
//% original files come with the following copyright notice:

//% Copyright (C) 2002-2013 Mark Adler, all rights reserved
//% version 2.3, 21 Jan 2013
//% This software is provided 'as-is', without any express or implied
//% warranty.  In no event will the author be held liable for any damages
//% arising from the use of this software.
//% Permission is granted to anyone to use this software for any purpose,
//% including commercial applications, and to alter it and redistribute it
//% freely, subject to the following restrictions:
//% 1. The origin of this software must not be misrepresented; you must not
//%    claim that you wrote the original software. If you use this software
//%    in a product, an acknowledgment in the product documentation would be
//%    appreciated but is not required.
//% 2. Altered source versions must be plainly marked as such, and must not be
//%    misrepresented as being the original software.
//% 3. This notice may not be removed or altered from any source distribution.
//% Mark Adler    madler@alumni.caltech.edu

//% BEGIN CODE DERIVED FROM puff.{c,h}

#define MAXBITS 15
#define MAXLCODES 286
#define MAXDCODES 30
#define MAXCODES (MAXLCODES + MAXDCODES)
#define FIXLCODES 288

struct puff_state {
  unsigned char* out;
  unsigned long outlen;
  unsigned long outcnt;
  const unsigned char* in;
  unsigned long inlen;
  unsigned long incnt;
  int bitbuf;
  int bitcnt;
  jmp_buf env;
};
static int puff_bits(struct puff_state* s, int need)
{
  long val = s->bitbuf;
  while (s->bitcnt < need) {
    if (s->incnt == s->inlen)
      longjmp(s->env, 1);
    val |= (long)(s->in[s->incnt++]) << s->bitcnt;
    s->bitcnt += 8;
  }
  s->bitbuf = (int)(val >> need);
  s->bitcnt -= need;
  return (int)(val & ((1L << need) - 1));
}
static int puff_stored(struct puff_state* s)
{
  s->bitbuf = 0;
  s->bitcnt = 0;
  if (s->incnt + 4 > s->inlen)
    return 2;
  unsigned len = s->in[s->incnt++];
  len |= s->in[s->incnt++] << 8;
  if (s->in[s->incnt++] != (~len & 0xff) ||
      s->in[s->incnt++] != ((~len >> 8) & 0xff))
    return -2;
  if (s->incnt + len > s->inlen)
    return 2;
  if (s->outcnt + len > s->outlen)
    return 1;
  for (; len--; s->outcnt++, s->incnt++) {
    if (s->in[s->incnt])
      s->out[s->outcnt] = s->in[s->incnt];
  }
  return 0;
}
struct puff_huffman {
  short* count;
  short* symbol;
};
static int puff_decode(struct puff_state* s, const struct puff_huffman* h)
{
  int first = 0;
  int index = 0;
  int bitbuf = s->bitbuf;
  int left = s->bitcnt;
  int code = first = index = 0;
  int len = 1;
  short* next = h->count + 1;
  while (1) {
    while (left--) {
      code |= bitbuf & 1;
      bitbuf >>= 1;
      int count = *next++;
      if (code - count < first) {
        s->bitbuf = bitbuf;
        s->bitcnt = (s->bitcnt - len) & 7;
        return h->symbol[index + (code - first)];
      }
      index += count;
      first += count;
      first <<= 1;
      code <<= 1;
      len++;
    }
    left = (MAXBITS + 1) - len;
    if (left == 0)
      break;
    if (s->incnt == s->inlen)
      longjmp(s->env, 1);
    bitbuf = s->in[s->incnt++];
    if (left > 8)
      left = 8;
  }
  return -10;
}
static int puff_construct(struct puff_huffman* h, const short* length, int n)
{
  int len;
  for (len = 0; len <= MAXBITS; len++)
    h->count[len] = 0;
  int symbol;
  for (symbol = 0; symbol < n; symbol++)
    (h->count[length[symbol]])++;
  if (h->count[0] == n)
    return 0;
  int left = 1;
  for (len = 1; len <= MAXBITS; len++) {
    left <<= 1;
    left -= h->count[len];
    if (left < 0)
      return left;
  }
  short offs[MAXBITS + 1];
  offs[1] = 0;
  for (len = 1; len < MAXBITS; len++)
    offs[len + 1] = offs[len] + h->count[len];
  for (symbol = 0; symbol < n; symbol++)
    if (length[symbol] != 0)
      h->symbol[offs[length[symbol]]++] = symbol;
  return left;
}
static int puff_codes(struct puff_state* s, const struct puff_huffman* lencode,
                      const struct puff_huffman* distcode)
{
  static const short lens[29] = {3,  4,  5,  6,   7,   8,   9,   10,  11, 13,
                                 15, 17, 19, 23,  27,  31,  35,  43,  51, 59,
                                 67, 83, 99, 115, 131, 163, 195, 227, 258};
  static const short lext[29] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2,
                                 2, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 0};
  static const short dists[30] = {
      1,    2,    3,    4,    5,    7,    9,    13,    17,    25,
      33,   49,   65,   97,   129,  193,  257,  385,   513,   769,
      1025, 1537, 2049, 3073, 4097, 6145, 8193, 12289, 16385, 24577};
  static const short dext[30] = {0, 0, 0,  0,  1,  1,  2,  2,  3,  3,
                                 4, 4, 5,  5,  6,  6,  7,  7,  8,  8,
                                 9, 9, 10, 10, 11, 11, 12, 12, 13, 13};
  int symbol;
  do {
    symbol = puff_decode(s, lencode);
    if (symbol < 0)
      return symbol;
    if (symbol < 256) {
      if (s->outcnt == s->outlen)
        return 1;
      if (symbol)
        s->out[s->outcnt] = symbol;
      s->outcnt++;
    } else if (symbol > 256) {
      symbol -= 257;
      if (symbol >= 29)
        return -10;
      int len = lens[symbol] + puff_bits(s, lext[symbol]);
      symbol = puff_decode(s, distcode);
      if (symbol < 0)
        return symbol;
      unsigned dist = dists[symbol] + puff_bits(s, dext[symbol]);
      if (dist > s->outcnt)
        return -11;
      if (s->outcnt + len > s->outlen)
        return 1;
      while (len--) {
        if (dist <= s->outcnt && s->out[s->outcnt - dist])
          s->out[s->outcnt] = s->out[s->outcnt - dist];
        s->outcnt++;
      }
    }
  } while (symbol != 256);
  return 0;
}
static int puff_fixed(struct puff_state* s)
{
  static int virgin = 1;
  static short lencnt[MAXBITS + 1], lensym[FIXLCODES];
  static short distcnt[MAXBITS + 1], distsym[MAXDCODES];
  static struct puff_huffman lencode, distcode;
  if (virgin) {
    lencode.count = lencnt;
    lencode.symbol = lensym;
    distcode.count = distcnt;
    distcode.symbol = distsym;
    short lengths[FIXLCODES];
    int symbol;
    for (symbol = 0; symbol < 144; symbol++)
      lengths[symbol] = 8;
    for (; symbol < 256; symbol++)
      lengths[symbol] = 9;
    for (; symbol < 280; symbol++)
      lengths[symbol] = 7;
    for (; symbol < FIXLCODES; symbol++)
      lengths[symbol] = 8;
    puff_construct(&lencode, lengths, FIXLCODES);
    for (symbol = 0; symbol < MAXDCODES; symbol++)
      lengths[symbol] = 5;
    puff_construct(&distcode, lengths, MAXDCODES);
    virgin = 0;
  }
  return puff_codes(s, &lencode, &distcode);
}
static int puff_dynamic(struct puff_state* s)
{
  static const short order[19] = {16, 17, 18, 0, 8,  7, 9,  6, 10, 5,
                                  11, 4,  12, 3, 13, 2, 14, 1, 15};
  int nlen = puff_bits(s, 5) + 257;
  int ndist = puff_bits(s, 5) + 1;
  int ncode = puff_bits(s, 4) + 4;
  if (nlen > MAXLCODES || ndist > MAXDCODES)
    return -3;
  short lengths[MAXCODES];
  int index;
  for (index = 0; index < ncode; index++)
    lengths[order[index]] = puff_bits(s, 3);
  for (; index < 19; index++)
    lengths[order[index]] = 0;
  short lencnt[MAXBITS + 1], lensym[MAXLCODES];
  struct puff_huffman lencode = {lencnt, lensym};
  int err = puff_construct(&lencode, lengths, 19);
  if (err != 0)
    return -4;
  index = 0;
  while (index < nlen + ndist) {
    int symbol;
    int len;
    symbol = puff_decode(s, &lencode);
    if (symbol < 0)
      return symbol;
    if (symbol < 16)
      lengths[index++] = symbol;
    else {
      len = 0;
      if (symbol == 16) {
        if (index == 0)
          return -5;
        len = lengths[index - 1];
        symbol = 3 + puff_bits(s, 2);
      } else if (symbol == 17)
        symbol = 3 + puff_bits(s, 3);
      else
        symbol = 11 + puff_bits(s, 7);
      if (index + symbol > nlen + ndist)
        return -6;
      while (symbol--)
        lengths[index++] = len;
    }
  }
  if (lengths[256] == 0)
    return -9;
  err = puff_construct(&lencode, lengths, nlen);
  if (err && (err < 0 || nlen != lencode.count[0] + lencode.count[1]))
    return -7;
  short distcnt[MAXBITS + 1], distsym[MAXDCODES];
  struct puff_huffman distcode = {distcnt, distsym};
  err = puff_construct(&distcode, lengths + nlen, ndist);
  if (err && (err < 0 || ndist != distcode.count[0] + distcode.count[1]))
    return -8;
  return puff_codes(s, &lencode, &distcode);
}
static int puff(unsigned char* dest, unsigned long* destlen,
                const unsigned char* source, unsigned long sourcelen)
{
  struct puff_state s = {
      .out = dest,
      .outlen = *destlen,
      .outcnt = 0,
      .in = source,
      .inlen = sourcelen,
      .incnt = 0,
      .bitbuf = 0,
      .bitcnt = 0,
  };
  int err;
  if (setjmp(s.env) != 0)
    err = 2;
  else {
    int last;
    do {
      last = puff_bits(&s, 1);
      int type = puff_bits(&s, 2);
      err = type == 0 ? puff_stored(&s)
                      : (type == 1 ? puff_fixed(&s)
                                   : (type == 2 ? puff_dynamic(&s) : -1));
      if (err != 0)
        break;
    } while (!last);
  }
  *destlen = s.outcnt;
  return err;
}

//% END CODE DERIVED FROM puff.{c,h}

#define ZLIB_HEADER_WIDTH 2

static int puff_zlib_to_file(const unsigned char* source,
                             unsigned long sourcelen, int dest_fd)
{
  if (sourcelen < ZLIB_HEADER_WIDTH)
    return 0;
  source += ZLIB_HEADER_WIDTH;
  sourcelen -= ZLIB_HEADER_WIDTH;
  const unsigned long max_destlen = 132 << 20;
  void* ret = mmap(0, max_destlen, PROT_WRITE | PROT_READ,
                   MAP_PRIVATE | MAP_ANON, -1, 0);
  if (ret == MAP_FAILED)
    return -1;
  unsigned char* dest = (unsigned char*)ret;
  unsigned long destlen = max_destlen;
  int err = puff(dest, &destlen, source, sourcelen);
  if (err) {
    munmap(dest, max_destlen);
    errno = -err;
    return -1;
  }
  if (write(dest_fd, dest, destlen) != (ssize_t)destlen) {
    munmap(dest, max_destlen);
    return -1;
  }
  return munmap(dest, max_destlen);
}

static int setup_loop_device(unsigned char* data, unsigned long size,
                             const char* loopname, int* loopfd_p)
{
  int err = 0, loopfd = -1;
  int memfd = syscall(__NR_memfd_create, "syzkaller", 0);
  if (memfd == -1) {
    err = errno;
    goto error;
  }
  if (puff_zlib_to_file(data, size, memfd)) {
    err = errno;
    goto error_close_memfd;
  }
  loopfd = open(loopname, O_RDWR);
  if (loopfd == -1) {
    err = errno;
    goto error_close_memfd;
  }
  if (ioctl(loopfd, LOOP_SET_FD, memfd)) {
    if (errno != EBUSY) {
      err = errno;
      goto error_close_loop;
    }
    ioctl(loopfd, LOOP_CLR_FD, 0);
    usleep(1000);
    if (ioctl(loopfd, LOOP_SET_FD, memfd)) {
      err = errno;
      goto error_close_loop;
    }
  }
  close(memfd);
  *loopfd_p = loopfd;
  return 0;

error_close_loop:
  close(loopfd);
error_close_memfd:
  close(memfd);
error:
  errno = err;
  return -1;
}

static void reset_loop_device(const char* loopname)
{
  int loopfd = open(loopname, O_RDWR);
  if (loopfd == -1) {
    return;
  }
  if (ioctl(loopfd, LOOP_CLR_FD, 0)) {
  }
  close(loopfd);
}

static long syz_mount_image(volatile long fsarg, volatile long dir,
                            volatile long flags, volatile long optsarg,
                            volatile long change_dir,
                            volatile unsigned long size, volatile long image)
{
  unsigned char* data = (unsigned char*)image;
  int res = -1, err = 0, need_loop_device = !!size;
  char* mount_opts = (char*)optsarg;
  char* target = (char*)dir;
  char* fs = (char*)fsarg;
  char* source = NULL;
  char loopname[64];
  if (need_loop_device) {
    int loopfd;
    memset(loopname, 0, sizeof(loopname));
    snprintf(loopname, sizeof(loopname), "/dev/loop%llu", procid);
    if (setup_loop_device(data, size, loopname, &loopfd) == -1)
      return -1;
    close(loopfd);
    source = loopname;
  }
  mkdir(target, 0777);
  char opts[256];
  memset(opts, 0, sizeof(opts));
  if (strlen(mount_opts) > (sizeof(opts) - 32)) {
  }
  strncpy(opts, mount_opts, sizeof(opts) - 32);
  if (strcmp(fs, "iso9660") == 0) {
    flags |= MS_RDONLY;
  } else if (strncmp(fs, "ext", 3) == 0) {
    bool has_remount_ro = false;
    char* remount_ro_start = strstr(opts, "errors=remount-ro");
    if (remount_ro_start != NULL) {
      char after = *(remount_ro_start + strlen("errors=remount-ro"));
      char before = remount_ro_start == opts ? '\0' : *(remount_ro_start - 1);
      has_remount_ro = ((before == '\0' || before == ',') &&
                        (after == '\0' || after == ','));
    }
    if (strstr(opts, "errors=panic") || !has_remount_ro)
      strcat(opts, ",errors=continue");
  } else if (strcmp(fs, "xfs") == 0) {
    strcat(opts, ",nouuid");
  }
  res = mount(source, target, fs, flags, opts);
  if (res == -1) {
    err = errno;
    goto error_clear_loop;
  }
  res = open(target, O_RDONLY | O_DIRECTORY);
  if (res == -1) {
    err = errno;
    goto error_clear_loop;
  }
  if (change_dir) {
    res = chdir(target);
    if (res == -1) {
      err = errno;
    }
  }

error_clear_loop:
  if (need_loop_device)
    reset_loop_device(loopname);
  errno = err;
  return res;
}

#define FS_IOC_SETFLAGS _IOW('f', 2, long)
static void remove_dir(const char* dir)
{
  int iter = 0;
  DIR* dp = 0;
  const int umount_flags = MNT_FORCE | UMOUNT_NOFOLLOW;

retry:
  while (umount2(dir, umount_flags) == 0) {
  }
  dp = opendir(dir);
  if (dp == NULL) {
    if (errno == EMFILE) {
      exit(1);
    }
    exit(1);
  }
  struct dirent* ep = 0;
  while ((ep = readdir(dp))) {
    if (strcmp(ep->d_name, ".") == 0 || strcmp(ep->d_name, "..") == 0)
      continue;
    char filename[FILENAME_MAX];
    snprintf(filename, sizeof(filename), "%s/%s", dir, ep->d_name);
    while (umount2(filename, umount_flags) == 0) {
    }
    struct stat st;
    if (lstat(filename, &st))
      exit(1);
    if (S_ISDIR(st.st_mode)) {
      remove_dir(filename);
      continue;
    }
    int i;
    for (i = 0;; i++) {
      if (unlink(filename) == 0)
        break;
      if (errno == EPERM) {
        int fd = open(filename, O_RDONLY);
        if (fd != -1) {
          long flags = 0;
          if (ioctl(fd, FS_IOC_SETFLAGS, &flags) == 0) {
          }
          close(fd);
          continue;
        }
      }
      if (errno == EROFS) {
        break;
      }
      if (errno != EBUSY || i > 100)
        exit(1);
      if (umount2(filename, umount_flags))
        exit(1);
    }
  }
  closedir(dp);
  for (int i = 0;; i++) {
    if (rmdir(dir) == 0)
      break;
    if (i < 100) {
      if (errno == EPERM) {
        int fd = open(dir, O_RDONLY);
        if (fd != -1) {
          long flags = 0;
          if (ioctl(fd, FS_IOC_SETFLAGS, &flags) == 0) {
          }
          close(fd);
          continue;
        }
      }
      if (errno == EROFS) {
        break;
      }
      if (errno == EBUSY) {
        if (umount2(dir, umount_flags))
          exit(1);
        continue;
      }
      if (errno == ENOTEMPTY) {
        if (iter < 100) {
          iter++;
          goto retry;
        }
      }
    }
    exit(1);
  }
}

static void kill_and_wait(int pid, int* status)
{
  kill(-pid, SIGKILL);
  kill(pid, SIGKILL);
  for (int i = 0; i < 100; i++) {
    if (waitpid(-1, status, WNOHANG | __WALL) == pid)
      return;
    usleep(1000);
  }
  DIR* dir = opendir("/sys/fs/fuse/connections");
  if (dir) {
    for (;;) {
      struct dirent* ent = readdir(dir);
      if (!ent)
        break;
      if (strcmp(ent->d_name, ".") == 0 || strcmp(ent->d_name, "..") == 0)
        continue;
      char abort[300];
      snprintf(abort, sizeof(abort), "/sys/fs/fuse/connections/%s/abort",
               ent->d_name);
      int fd = open(abort, O_WRONLY);
      if (fd == -1) {
        continue;
      }
      if (write(fd, abort, 1) < 0) {
      }
      close(fd);
    }
    closedir(dir);
  } else {
  }
  while (waitpid(-1, status, __WALL) != pid) {
  }
}

static void reset_loop()
{
  char buf[64];
  snprintf(buf, sizeof(buf), "/dev/loop%llu", procid);
  int loopfd = open(buf, O_RDWR);
  if (loopfd != -1) {
    ioctl(loopfd, LOOP_CLR_FD, 0);
    close(loopfd);
  }
}

static void setup_test()
{
  prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0);
  setpgrp();
  write_file("/proc/self/oom_score_adj", "1000");
  if (symlink("/dev/binderfs", "./binderfs")) {
  }
}

static void execute_one(void);

#define WAIT_FLAGS __WALL

static void loop(void)
{
  int iter = 0;
  for (;; iter++) {
    char cwdbuf[32];
    sprintf(cwdbuf, "./%d", iter);
    if (mkdir(cwdbuf, 0777))
      exit(1);
    reset_loop();
    int pid = fork();
    if (pid < 0)
      exit(1);
    if (pid == 0) {
      if (chdir(cwdbuf))
        exit(1);
      setup_test();
      execute_one();
      exit(0);
    }
    int status = 0;
    uint64_t start = current_time_ms();
    for (;;) {
      sleep_ms(10);
      if (waitpid(-1, &status, WNOHANG | WAIT_FLAGS) == pid)
        break;
      if (current_time_ms() - start < 5000)
        continue;
      kill_and_wait(pid, &status);
      break;
    }
    remove_dir(cwdbuf);
  }
}

void execute_one(void)
{
  if (write(1, "executing program\n", sizeof("executing program\n") - 1)) {
  }
  memcpy((void*)0x200000000040, "ext4\000", 5);
  memcpy((void*)0x200000000180, "./file0\000", 8);
  memcpy((void*)0x2000000001c0, "mb_optimize_scan", 16);
  *(uint8_t*)0x2000000001d0 = 0x3d;
  sprintf((char*)0x2000000001d1, "0x%016llx", (long long)1);
  *(uint8_t*)0x2000000001e3 = 0x2c;
  memcpy((void*)0x2000000001e4, "data=writeback", 14);
  *(uint8_t*)0x2000000001f2 = 0x2c;
  memcpy((void*)0x2000000001f3, "nojournal_checksum", 18);
  *(uint8_t*)0x200000000205 = 0x2c;
  memcpy((void*)0x200000000206, "noblock_validity", 16);
  *(uint8_t*)0x200000000216 = 0x2c;
  memcpy((void*)0x200000000217, "noblock_validity", 16);
  *(uint8_t*)0x200000000227 = 0x2c;
  memcpy((void*)0x200000000228, "max_batch_time", 14);
  *(uint8_t*)0x200000000236 = 0x3d;
  sprintf((char*)0x200000000237, "0x%016llx", (long long)0x80);
  *(uint8_t*)0x200000000249 = 0x2c;
  memcpy((void*)0x20000000024a, "inlinecrypt", 11);
  *(uint8_t*)0x200000000255 = 0x2c;
  memcpy((void*)0x200000000256, "i_version", 9);
  *(uint8_t*)0x20000000025f = 0x2c;
  *(uint8_t*)0x200000000260 = 0;
  memcpy(
      (void*)0x200000000cc0,
      "\x78\x9c\xec\xdd\xc1\x6f\x23\x57\x19\x00\xf0\x6f\x1c\x3b\xbb\xd9\x64\x9b"
      "\x14\x38\x40\x25\xba\x85\x16\x65\x23\x58\x3b\x69\xd4\x36\x70\x28\x45\x42"
      "\x70\xaa\x04\x94\xfb\x12\x12\x27\x8a\xe2\xc4\xab\xd8\x69\x37\xd1\x8a\x66"
      "\xc5\x1f\x80\x84\x10\x20\x71\x82\x0b\x17\x24\xfe\x00\x24\x54\x89\x0b\x47"
      "\x84\x54\x09\xce\x20\x40\x20\x04\x29\x1c\x40\x82\x1d\x64\x7b\xec\xcd\x3a"
      "\x76\x92\x0d\xde\x38\x4d\x7e\x3f\x69\x32\xef\xcd\x78\xfc\x7d\x2f\xce\x8c"
      "\xe7\xcd\x4c\x66\x02\xb8\xb4\x5e\xcb\x86\x07\x69\x9a\xce\x44\xc4\x64\x36"
      "\x3d\x97\x0d\x1f\x6f\x54\xf6\x22\x9e\x8b\x88\x1b\xfb\xf7\x96\xde\xdb\xbf"
      "\xb7\x94\x44\x9a\xbe\xf1\xb7\x24\x92\x88\x68\xd4\xdb\xef\x95\x36\x5d\x89"
      "\xf1\xd6\x22\x11\xf9\x88\xaf\x7c\x31\xe2\xeb\xc9\xe1\xb8\xb5\x9d\xdd\xf5"
      "\xc5\x4a\xa5\xbc\x95\xd5\x4b\xf5\x8d\x3b\xa5\xda\xce\xee\xad\xb5\x8d\xc5"
      "\xd5\xf2\x6a\x79\x73\x7e\x7e\xee\xe5\x85\x57\x16\x5e\x5a\x98\xed\x9f\xfc"
      "\xa7\x47\x8f\x6b\xde\xca\x78\x56\xb8\x1e\x11\xaf\x7e\xfe\x4f\xdf\xfd\xd6"
      "\x8f\xbf\xf0\xea\xcf\x3f\xf5\xd6\xef\x6f\xff\xe5\xe6\x37\x92\x56\xce\x6f"
      "\x47\x57\x3b\x1e\x53\xfe\xa8\x99\xad\xa6\x17\xe2\x6a\x56\x9f\xc9\xc6\x5b"
      "\xa7\x0c\x76\x1e\xe5\x0f\x16\xc6\x4e\xb6\xcc\xfd\xec\x4f\x04\x00\x80\xb3"
      "\xd5\xd8\x2f\xfd\x40\xb6\x9f\x3f\x13\x93\x31\x12\x23\xc3\x4e\x09\x00\x00"
      "\x00\x18\xb0\xf4\xb3\x13\xf1\x9f\xa4\x7d\xee\xee\x90\xd1\x3e\xd3\x01\x00"
      "\x00\x80\xf7\x91\x5c\x44\x4c\x44\x92\x2b\x66\xd7\xfb\x4e\x44\x2e\x57\x2c"
      "\x46\xf3\x1a\xde\x0f\xc5\xb5\x5c\xa5\x5a\xab\x7f\x72\xa5\xba\xbd\xb9\xdc"
      "\x98\x17\x31\x15\x85\xdc\xca\x5a\xa5\x3c\x9b\x5d\x2b\x3c\x15\x85\xa4\x51"
      "\x9f\x6b\x96\x1f\xd6\x5f\xec\xaa\xcf\x47\xc4\xd3\x11\xf1\x9d\xc9\xb1\x66"
      "\xbd\xb8\x54\xad\x2c\x0f\xfb\xe0\x07\x00\x00\x00\x5c\x12\xe3\x5d\xfd\xff"
      "\x7f\x4e\xb6\xfa\xff\x00\x00\x00\xc0\x05\x33\x35\xec\x04\x00\x00\x00\x80"
      "\x27\x4e\xff\x1f\x00\x00\x00\x2e\x3e\xfd\x7f\x00\x00\x00\xb8\xd0\xbe\xf4"
      "\xfa\xeb\x8d\x21\x6d\x3f\xff\x7a\xf9\xcd\x9d\xed\xf5\xea\x9b\xb7\x96\xcb"
      "\xb5\xf5\xe2\xc6\xf6\x52\x71\xa9\xba\x75\xa7\xb8\x5a\xad\xae\x36\xef\xd9"
      "\xb7\x71\xe4\x9b\x75\x1e\x04\xbd\xb9\x7d\xb7\x54\x2f\xd7\xea\xa5\xda\xce"
      "\xee\xed\x8d\xea\xf6\x66\xfd\xf6\x5a\xe7\x11\xd8\x00\x00\x00\xc0\x19\x7b"
      "\xfa\xc6\x3b\xbf\x4d\x22\x62\xef\x33\x63\xcd\xa1\x61\xf4\xc0\xfc\x7f\x67"
      "\xcf\x09\x18\x5a\x82\xc0\x13\xd3\x39\x64\x17\x49\x36\x1e\x3d\xfc\xa2\xdf"
      "\x3d\xd5\x1a\xff\xf1\x8c\x92\x02\xce\xc4\xc8\xb0\x13\x00\x86\x26\x3f\xec"
      "\x04\x80\xa1\x29\x0c\x3b\x01\x60\xe8\x92\xee\x09\x57\x1e\xad\xf6\xbd\x78"
      "\xe7\x57\xd9\xf8\x63\x83\xcf\x09\x00\x00\x18\xac\xe9\x8f\xf4\x3f\xff\x9f"
      "\x3b\x72\xc9\xbd\xa3\x67\x03\xe7\x9e\x95\x18\x2e\x2f\xe7\xff\xe1\xf2\x6a"
      "\x9e\xff\xef\x71\xc9\x5f\x4f\x76\x16\xe0\x42\x29\xd8\x03\x80\x4b\xef\xd0"
      "\xf9\xff\x2e\xc7\x9e\xff\x3f\x96\xff\x21\x02\x00\x80\x61\x9b\x68\x0e\x49"
      "\xae\x98\x1d\xde\x9b\x88\x5c\xae\x58\x8c\xb8\xde\x7c\x2c\x40\x21\x59\x59"
      "\xab\x94\x67\x23\xe2\xa9\x88\xf8\xcd\x64\xe1\x4a\xa3\x3e\xd7\x5c\x32\x39"
      "\xb6\xcf\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\xb4\xa4\x69\x12\x29\x00\x00\x00\x70\xa1\x45\xe4\xfe\x9c"
      "\xfc\xa2\x75\x2f\xff\xe9\xc9\x17\x26\xba\x8f\x0f\x8c\x26\xff\x9a\x8c\xec"
      "\x11\xa1\x6f\xfd\xe0\x8d\xef\xdd\x5d\xac\xd7\xb7\xe6\x1a\xd3\xff\xde\x99"
      "\x5e\xff\x7e\x36\xfd\xc5\x61\x1c\xc1\x00\x00\x00\x00\xba\xb5\xfb\xe9\xed"
      "\x7e\x3c\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x0c\xd2\x7b\xfb\xf7\x96\xda\xc3\x59\xc6\xfd\xeb\xe7\x22\x62"
      "\xaa\x57\xfc\x7c\x5c\x6d\x8e\xaf\x46\x21\x22\xae\xfd\x23\x89\xfc\x81\xe5"
      "\x92\x88\x18\x19\x40\xfc\xbd\xfb\x11\xf1\xe1\x5e\xf1\x93\x46\x5a\x9d\x90"
      "\xbd\xe2\x8f\x3d\xf9\xf8\x31\x95\xfd\x16\x7a\xc5\x1f\x1f\x40\x7c\xb8\xcc"
      "\xde\x69\x6c\x7f\x5e\xeb\xb5\xfe\xe5\xe2\xb9\xe6\xb8\xf7\xfa\x97\x8f\x78"
      "\xa4\x7e\x5a\xfd\xb7\x7f\xd1\xd9\xfe\x8d\xf4\x59\xff\xaf\x9f\x30\xc6\x33"
      "\xef\xfe\xb4\xd4\x37\xfe\xfd\x88\x67\xf2\xbd\xb7\x3f\xed\xf8\x49\x9f\xf8"
      "\xcf\x9f\x30\xfe\xd7\xbe\xba\xbb\xdb\x6f\x5e\xfa\xc3\x88\xe9\x9e\xdf\x3f"
      "\xc9\x23\xb1\x4a\xf5\x8d\x3b\xa5\xda\xce\xee\xad\xb5\x8d\xc5\xd5\xf2\x6a"
      "\x79\x73\x7e\x7e\xee\xe5\x85\x57\x16\x5e\x5a\x98\x2d\xad\xac\x55\xca\xd9"
      "\xcf\x9e\x31\xbe\xfd\xd1\x9f\x3d\x38\xaa\xfd\xd7\xfa\xc4\x9f\x3a\xa6\xfd"
      "\x2f\x9c\xb0\xfd\xff\x7d\xf7\xee\xfe\x07\x5b\xc5\x42\xaf\xf8\x37\x9f\xef"
      "\x11\xff\x97\x3f\xca\x5e\x71\x38\x7e\x2e\xfb\xee\xfb\x44\x56\x6e\xcc\x9f"
      "\x6e\x97\xf7\x5a\xe5\x83\x9e\xfd\xc9\xaf\x9f\x3d\xaa\xfd\xcb\x7d\xda\x7f"
      "\xdc\xe7\x7f\xf3\x84\xed\x9f\xf9\xf2\x37\xff\x70\xc2\x97\x02\x00\x67\xa0"
      "\xb6\xb3\xbb\xbe\x58\xa9\x94\xb7\x2e\x6c\xa1\xd1\x4b\x3f\x07\x69\x3c\x5e"
      "\x61\x34\xfb\x78\xce\x4b\x3e\x17\xb4\xf0\xf6\xe1\x59\x37\xe2\xd4\x6f\x98"
      "\xa6\x69\xda\xf8\xd0\xfe\x8f\xc4\x92\xd3\x47\x1f\x4c\x21\xe9\x4c\x19\xee"
      "\x76\x09\x00\x00\x18\xbc\x87\x7b\xff\xc3\xce\x04\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x2e\xaf\xb3\xb8\xaf\x58\x77\xcc\xbd"
      "\x4e\x29\x19\xc4\x2d\xb4\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x06\xe2\x7f\x01\x00\x00\xff"
      "\xff\xa6\x4c\xe5\x71",
      1319);
  syz_mount_image(/*fs=*/0x200000000040, /*dir=*/0x200000000180,
                  /*flags=MS_SYNCHRONOUS|MS_SILENT|MS_RDONLY*/ 0x8011,
                  /*opts=*/0x2000000001c0, /*chdir=*/0, /*size=*/0x527,
                  /*img=*/0x200000000cc0);
  memcpy((void*)0x2000000004c0, "ext4\000", 5);
  memcpy((void*)0x2000000000c0, "./file0\000", 8);
  *(uint8_t*)0x200000000040 = 0;
  memcpy(
      (void*)0x200000000500,
      "\x78\x9c\xec\xdd\x4d\x6c\x23\x57\x1d\x00\xf0\xff\x4c\x3e\xec\x4d\xd3\x26"
      "\x85\x1e\x00\x15\xba\x94\xc2\x82\x56\x6b\x27\xde\x36\xaa\x7a\x61\x39\x55"
      "\x08\x55\x42\xf4\xc8\x61\x1b\x12\x27\x8a\xd6\x89\xa3\xd8\x29\x4d\x58\xa4"
      "\xec\x91\x3b\x12\x95\x38\xc1\x89\x33\x07\x24\x0e\x48\x3d\x71\x47\xe2\x00"
      "\x37\x2e\xe5\x80\x54\x60\x05\x6a\x90\x38\xb8\xf2\x78\x9c\xcd\x97\x1b\x6b"
      "\x1b\xdb\xbb\xf1\xef\x27\x8d\xe6\xcd\x7b\xe3\xf9\xbf\xb7\xb3\xf3\x9e\xf5"
      "\xac\xcc\x0b\x60\x6c\x5d\x8f\x88\x83\x88\x98\x8e\x88\x77\x22\x62\x2e\xcf"
      "\x4f\xf2\x2d\xee\x74\xb6\xf6\x79\x1f\x3f\xbc\xbf\x72\xf8\xf0\xfe\x4a\x12"
      "\xad\xd6\xdb\xff\x4a\xb2\xf2\x76\x5e\xf6\x81\xda\x4f\x3b\xe7\x47\xc4\x33"
      "\xf9\x35\x8b\x11\xf1\x83\x37\x23\x7e\x94\x9c\x0a\xfa\xe7\x88\xc6\xde\xfe"
      "\xbd\xe5\x5a\xad\xba\x93\x67\x95\x9b\x9b\xdb\xe5\xc6\xde\xfe\xad\x8d\xcd"
      "\xe5\xf5\xea\x7a\x75\xab\x52\x59\x5a\x5c\x5a\x78\xfd\xf6\x6b\x95\x4b\x6b"
      "\xeb\x4b\x9b\xbf\xfd\xe8\x5a\x44\xfc\xe1\xf7\x5f\xfe\xf0\x4f\x07\xdf\xfa"
      "\x49\xbb\x5a\xb3\x79\xd9\x51\x3b\x2e\x59\xa7\xe9\x53\x47\x71\xda\x26\x23"
      "\xe2\x7b\x83\x08\x36\x02\x13\x79\x7b\xa6\x1f\xe7\xc3\x8f\xf5\x21\x2e\x53"
      "\x1a\x11\x9f\x8b\x88\x97\xb3\xe7\x7f\x2e\x26\xb2\xbb\x79\xd2\xc9\xdb\xf4"
      "\xed\x21\xd6\x0e\x00\x18\x84\x56\x6b\x2e\x5a\x73\xc7\x8f\x01\x80\xab\x2e"
      "\xcd\xe6\xc0\x92\xb4\x94\xcf\x05\xcc\x46\x9a\x96\x4a\x9d\x39\xbc\x17\x62"
      "\x26\xad\xd5\x1b\xcd\x9b\x6b\xf5\xdd\xad\xd5\xce\x5c\xd9\x7c\x4c\xa5\x6b"
      "\x1b\xb5\xea\x42\x3e\x57\x38\x1f\x53\xc9\xda\xc6\x64\x75\x31\x4b\x77\x8f"
      "\x6b\xd5\xca\xa9\xe3\xdb\x11\xf1\x7c\x44\xfc\xbc\x70\x2d\x3b\x2e\xad\xd4"
      "\x6b\xab\xa3\xfc\xe2\x03\x00\x63\xec\x99\x53\xe3\xff\x7f\x0b\x9d\xf1\x1f"
      "\x00\xb8\xe2\x8a\x8f\x92\x85\x51\xd6\x03\x00\x18\x9e\xe2\xa8\x2b\x00\x00"
      "\x0c\x9d\xf1\x1f\x00\xc6\x8f\xf1\x1f\x00\xc6\x8f\xf1\x1f\x00\xc6\x8f\xf1"
      "\x1f\x00\xc6\x8f\xf1\x1f\x00\xc6\xca\xf7\xdf\x7a\xab\xbd\xb5\x0e\xf3\xf7"
      "\x5f\xaf\xbe\xbb\xb7\x7b\xaf\xfe\xee\xad\xd5\x6a\xe3\x4e\x7e\xca\xce\x76"
      "\x69\xbd\x5e\x5f\xcf\xde\xd9\xb3\x79\xd1\xf5\x6a\xf5\xfa\xf6\xe2\xab\xb1"
      "\xfb\x5e\xb9\x59\x6d\x34\xcb\x8d\xbd\xfd\xbb\x9b\xf5\xdd\xad\xe6\xdd\xec"
      "\xbd\xde\x77\xab\x53\x03\x6f\x11\x00\x70\x91\xe7\x5f\xfa\xe0\xaf\x49\x44"
      "\x1c\xbc\x71\x2d\xdb\xe2\xd8\xfb\xfe\x2f\x1c\xab\x5f\x1c\x74\xed\x80\x41"
      "\x4a\x47\x5d\x01\x60\x64\x26\x46\x5d\x01\x60\x64\xce\xae\xf6\x05\x8c\x0b"
      "\xf3\xf1\xc0\xb1\x25\x7a\x1f\x1c\xcb\x2e\x9e\x49\x9c\xf6\x7e\x5f\x97\x4f"
      "\xad\x1b\x0a\x4f\x9e\x1b\x5f\xfc\x0c\xf3\xff\xc0\x53\xcd\xfc\x3f\x8c\xaf"
      "\xc7\x9b\xff\xf7\x5d\x1e\xae\x02\xf3\xff\x30\xbe\x5a\xad\xc4\x9a\xff\x00"
      "\x30\x66\xcc\xf1\x03\xc9\x05\xe5\xc7\x7f\xff\x5f\x68\x1d\x3b\xe8\xef\xf7"
      "\x7f\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\xb8\x92\x66\xb3\x2d\x49\x4b\xf9\x5a\xe0\xb3"
      "\x91\xa6\xa5\x52\xc4\xb3\x11\x31\x1f\x53\xc9\xda\x46\xad\xba\x10\x11\xcf"
      "\x45\xc4\x5f\x0a\x53\x85\xf6\xf1\x62\x44\x58\x37\x08\x00\x9e\x66\xe9\x3f"
      "\x92\x7c\xfd\xaf\x1b\x73\xaf\xcc\x9e\x2e\x9d\x2e\xfc\xaf\x90\xed\x23\xe2"
      "\xc7\xbf\x7c\xfb\x17\xef\x2d\x37\x9b\x3b\x8b\x11\xd3\xc9\xbf\x8f\xf2\x9b"
      "\xef\xe7\xf9\x95\x51\xd4\x1f\x00\xb8\x48\x77\x9c\xee\x8e\xe3\x5d\x1f\x3f"
      "\xbc\xbf\xd2\xdd\x86\x59\x9f\x8f\xbe\xd3\x59\x5c\xb4\x1d\xf7\x30\xdf\x3a"
      "\x25\x93\x31\x99\xed\x8b\xd9\x5c\xc3\xcc\x7f\x92\xfc\xb8\xa3\xfd\x7d\x65"
      "\xe2\x12\xe2\x1f\x3c\x88\x88\x2f\x9c\xd7\xfe\x24\x9b\x1b\x99\xcf\x57\x3e"
      "\x3d\x1d\xbf\x1d\xfb\xd9\xa1\xc6\x4f\x4f\xc4\x4f\xb3\xb2\xce\xbe\xfd\x6f"
      "\xf1\xf9\x4b\xa8\x0b\x8c\x9b\x0f\xda\xfd\x4f\xeb\xbc\xe7\x2f\x8d\xeb\xd9"
      "\xfe\xfc\xe7\xbf\x98\xf5\x50\x9f\x5d\xb7\xff\x3b\x3c\xd3\xff\xa5\x47\xfd"
      "\xdf\x44\x8f\xfe\xef\x7a\xbf\x31\x5e\xfd\xe3\x77\xcf\x64\xb6\xe6\x3a\x65"
      "\x0f\x22\xbe\x34\x19\x71\xd8\xbd\xf8\xb1\xfe\xa7\x1b\x3f\xe9\x11\xff\x95"
      "\x3e\xe3\xff\xed\xc5\xaf\xbc\xdc\xab\xac\xf5\xab\x88\x1b\x71\x5e\xfb\x93"
      "\x13\xb1\xca\xcd\xcd\xed\x72\x63\x6f\xff\xd6\xc6\xe6\xf2\x7a\x75\xbd\xba"
      "\x55\xa9\x2c\x2d\x2e\x2d\xbc\x7e\xfb\xb5\x4a\x39\x9b\xa3\x2e\x77\x67\xaa"
      "\xcf\xfa\xe7\x1b\x37\x9f\xeb\x15\xbf\xdd\xfe\x99\x1e\xf1\x8b\x17\xb4\xff"
      "\xeb\x7d\xb6\xff\xd7\xff\x7f\xe7\x87\x5f\xfd\x94\xf8\xdf\xfc\xda\xf9\xf7"
      "\xff\x85\x4f\x89\xdf\x1e\x13\xbf\xd1\x67\xfc\xe5\x99\xdf\x15\x7b\x95\xb5"
      "\xe3\xaf\xf6\x68\xff\x45\xf7\xff\x66\x9f\xf1\x3f\xfc\xfb\xfe\x6a\x9f\xa7"
      "\x02\x00\x43\xd0\xd8\xdb\xbf\xb7\x5c\xbb\x53\xdd\xe9\x24\x6a\x03\x4b\xa4"
      "\x83\x0f\x91\x25\x92\x88\x83\x01\x87\x78\x94\x28\xfc\xe6\x67\x6f\x0e\x2b"
      "\xd6\x00\x13\x71\x94\xd3\xfd\x6f\xf1\x84\x54\x4c\x62\x74\x89\xd1\xf6\x4b"
      "\xc0\xe0\x3d\x7a\xe8\x47\x5d\x13\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\xa0\x97\x61\xfc\x39\xd1\xa8\xdb\x08\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xc0\xd5\xf5"
      "\x49\x00\x00\x00\xff\xff\x80\x82\xcf\xd9",
      1288);
  syz_mount_image(/*fs=*/0x2000000004c0, /*dir=*/0x2000000000c0,
                  /*flags=MS_RELATIME*/ 0x200000, /*opts=*/0x200000000040,
                  /*chdir=*/1, /*size=*/0x508, /*img=*/0x200000000500);
  memcpy((void*)0x200000000300, "./bus\000", 6);
  syscall(__NR_mkdir, /*path=*/0x200000000300ul, /*mode=*/0ul);
}
int main(void)
{
  syscall(__NR_mmap, /*addr=*/0x1ffffffff000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul,
          /*fd=*/(intptr_t)-1, /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x200000000000ul, /*len=*/0x1000000ul,
          /*prot=PROT_WRITE|PROT_READ|PROT_EXEC*/ 7ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul,
          /*fd=*/(intptr_t)-1, /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x200001000000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul,
          /*fd=*/(intptr_t)-1, /*offset=*/0ul);
  const char* reason;
  (void)reason;
  use_temporary_dir();
  loop();
  return 0;
}