// https://syzkaller.appspot.com/bug?id=bda19bf6b14e7fddccf28ac6f0205c7df6d8c32e
// autogenerated by syzkaller (https://github.com/google/syzkaller)

#define _GNU_SOURCE

#include <sys/types.h>

#include <pwd.h>
#include <signal.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/endian.h>
#include <sys/syscall.h>
#include <sys/wait.h>
#include <time.h>
#include <unistd.h>

static unsigned long long procid;

static void kill_and_wait(int pid, int* status)
{
  kill(pid, SIGKILL);
  while (waitpid(-1, status, 0) != pid) {
  }
}

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 execute_one(void);

#define WAIT_FLAGS 0

static void loop(void)
{
  int iter = 0;
  for (;; iter++) {
    int pid = fork();
    if (pid < 0)
      exit(1);
    if (pid == 0) {
      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;
    }
  }
}

uint64_t r[1] = {0xffffffffffffffff};

void execute_one(void)
{
  intptr_t res = 0;
  if (write(1, "executing program\n", sizeof("executing program\n") - 1)) {
  }
  *(uint8_t*)0x20000140 = 0x10;
  *(uint8_t*)0x20000141 = 2;
  *(uint16_t*)0x20000142 = htobe16(0x4e20 + procid * 4);
  *(uint8_t*)0x20000144 = 0xac;
  *(uint8_t*)0x20000145 = 0x14;
  *(uint8_t*)0x20000146 = 0 + procid * 1;
  *(uint8_t*)0x20000147 = 0xbb;
  memset((void*)0x20000148, 0, 8);
  syscall(SYS_connect, /*fd=*/-1, /*addr=*/0x20000140ul, /*addrlen=*/0x10ul);
  res = syscall(SYS_dup2, /*oldfd=*/-1, /*newfd=*/-1);
  if (res != -1)
    r[0] = res;
  *(uint32_t*)0x20001700 = 0;
  syscall(SYS_getsockopt, /*fd=*/r[0], /*level=*/0x84, /*opt=*/0x105,
          /*val=*/0ul, /*len=*/0x20001700ul);
  syscall(SYS_socket, /*domain=*/0ul, /*type=*/0ul, /*proto=*/0);
  syscall(SYS_sendto, /*fd=*/-1, /*buf=*/0ul, /*len=*/0ul, /*f=*/0ul,
          /*addr=*/0ul, /*addrlen=*/0ul);
  *(uint64_t*)0x20000040 = 0;
  *(uint16_t*)0x20000048 = 0xfff9;
  *(uint16_t*)0x2000004a = 9;
  *(uint32_t*)0x2000004c = 8;
  *(uint64_t*)0x20000050 = 0xe8c5;
  *(uint64_t*)0x20000058 = 0;
  *(uint64_t*)0x20000060 = 0;
  *(uint64_t*)0x20000068 = 0;
  *(uint64_t*)0x20000070 = 7;
  *(uint64_t*)0x20000078 = 0x40000000000000;
  syscall(SYS_kevent, /*kqueue=*/-1, /*changelist=*/0x20000040ul,
          /*nchanges=*/1ul, /*eventlist=*/0ul, /*nevents=*/0ul,
          /*timeout=*/0ul);
  *(uint32_t*)0x20000140 = -1;
  *(uint64_t*)0x20000148 = 0x174;
  *(uint64_t*)0x20000150 = 0;
  *(uint64_t*)0x20000158 = 0;
  *(uint32_t*)0x20000160 = 0xe;
  *(uint32_t*)0x20000164 = 4;
  *(uint64_t*)0x20000168 = 0x711204cb;
  *(uint32_t*)0x20000170 = 6;
  *(uint32_t*)0x20000174 = 8;
  *(uint64_t*)0x20000178 = 0xb7;
  *(uint64_t*)0x20000180 = 3;
  *(uint64_t*)0x20000188 = 0x20000100;
  memcpy((void*)0x20000100,
         "\x0b\x89\x84\xca\x23\x6a\x77\x38\xa8\x58\x34\x18\x8a\xb3\x0e\xc4\xdd"
         "\x97\xd9\xeb\x1a\x61\x20",
         23);
  *(uint32_t*)0x20000190 = 3;
  *(uint32_t*)0x20000194 = 0xf;
  *(uint32_t*)0x20000198 = 0xe0aa;
  *(uint64_t*)0x200001a0 = 0x7fff;
  *(uint64_t*)0x200001a8 = 2;
  *(uint64_t*)0x200001b0 = 0xb;
  *(uint64_t*)0x200001b8 = 0;
  *(uint64_t*)0x200001c0 = 0;
  *(uint64_t*)0x200001c8 = 0x100;
  *(uint64_t*)0x200001d0 = 1;
  *(uint64_t*)0x200001d8 = 4;
  syscall(SYS_aio_write, /*iocb=*/0x20000140ul);
  *(uint32_t*)0x20000180 = 0x13;
  *(uint32_t*)0x20000184 = 1;
  *(uint32_t*)0x20000188 = -1;
  *(uint32_t*)0x2000018c = 0;
  *(uint32_t*)0x20000190 = 0;
  memset((void*)0x20000194, 0, 60);
  syscall(SYS_procctl, /*idtype=*/0ul, /*id=*/0, /*cmd=*/6ul,
          /*data=*/0x20000180ul);
  *(uint8_t*)0x200000c0 = 0x10;
  *(uint8_t*)0x200000c1 = 2;
  *(uint16_t*)0x200000c2 = htobe16(0x4e20 + procid * 4);
  *(uint32_t*)0x200000c4 = htobe32(5);
  memset((void*)0x200000c8, 0, 8);
  syscall(SYS_sendto, /*fd=*/-1, /*buf=*/0ul, /*len=*/0ul, /*f=*/0ul,
          /*addr=*/0x200000c0ul, /*addrlen=*/0x10ul);
}
int main(void)
{
  syscall(SYS_mmap, /*addr=*/0x20000000ul, /*len=*/0x1000000ul,
          /*prot=PROT_WRITE|PROT_READ|PROT_EXEC*/ 7ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x1012ul, /*fd=*/-1,
          /*offset=*/0ul);
  const char* reason;
  (void)reason;
  for (procid = 0; procid < 4; procid++) {
    if (fork() == 0) {
      loop();
    }
  }
  sleep(1000000);
  return 0;
}