1  /*
       2   * Copyright (c) 2016-2020 The strace developers.
       3   * All rights reserved.
       4   *
       5   * SPDX-License-Identifier: GPL-2.0-or-later
       6   */
       7  
       8  #include "tests.h"
       9  #include "scno.h"
      10  
      11  #ifdef __NR_mknod
      12  
      13  # include <stdio.h>
      14  # include <sys/stat.h>
      15  # include <sys/sysmacros.h>
      16  # include <unistd.h>
      17  
      18  static const char *sample;
      19  
      20  static long
      21  call_mknod(unsigned short mode, unsigned long dev)
      22  {
      23  	unsigned long lmode = (unsigned long) 0xffffffffffff0000ULL | mode;
      24  	return syscall(__NR_mknod, sample, lmode, dev);
      25  }
      26  
      27  int
      28  main(int ac, char **av)
      29  {
      30  	unsigned long dev = (unsigned long) 0xdeadbeefbadc0dedULL;
      31  	sample = av[0];
      32  
      33  	long rc = call_mknod(0, dev);
      34  	printf("mknod(\"%s\", 000) = %s\n",
      35  	       sample, sprintrc(rc));
      36  
      37  	rc = call_mknod(0xffff, dev);
      38  	printf("mknod(\"%s\", %#03ho) = %s\n",
      39  	       sample, (unsigned short) -1, sprintrc(rc));
      40  
      41  	rc = call_mknod(S_IFREG, 0);
      42  	printf("mknod(\"%s\", S_IFREG|000) = %s\n",
      43  	       sample, sprintrc(rc));
      44  
      45  	rc = call_mknod(S_IFDIR | 06, 0);
      46  	printf("mknod(\"%s\", S_IFDIR|006) = %s\n",
      47  	       sample, sprintrc(rc));
      48  
      49  	rc = call_mknod(S_IFLNK | 060, 0);
      50  	printf("mknod(\"%s\", S_IFLNK|060) = %s\n",
      51  	       sample, sprintrc(rc));
      52  
      53  	rc = call_mknod(S_IFIFO | 0600, 0);
      54  	printf("mknod(\"%s\", S_IFIFO|0600) = %s\n",
      55  	       sample, sprintrc(rc));
      56  
      57  	dev = (unsigned long) 0xdeadbeef00000000ULL | makedev(1, 7);
      58  
      59  	rc = call_mknod(S_IFCHR | 024, dev);
      60  	printf("mknod(\"%s\", S_IFCHR|024, makedev(0x1, 0x7)) = %s\n",
      61  	       sample, sprintrc(rc));
      62  
      63  	const unsigned short mode = (0xffff & ~S_IFMT) | S_IFBLK;
      64  	dev = (unsigned long) 0xdeadbeefbadc0dedULL;
      65  
      66  	rc = call_mknod(mode, dev);
      67  	printf("mknod(\"%s\", S_IFBLK|S_ISUID|S_ISGID|S_ISVTX|%#03ho"
      68  	       ", makedev(%#x, %#x)) = %s\n",
      69  	       sample, (short) (mode & ~(S_IFMT|S_ISUID|S_ISGID|S_ISVTX)),
      70  	       major((unsigned) dev), minor((unsigned) dev),
      71  	       sprintrc(rc));
      72  
      73  	puts("+++ exited with 0 +++");
      74  	return 0;
      75  }
      76  
      77  #else
      78  
      79  SKIP_MAIN_UNDEFINED("__NR_mknod")
      80  
      81  #endif