db/hash.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * Copyright (c) 2000-2001,2005 Silicon Graphics, Inc.
   4  * All Rights Reserved.
   5  */
   6
   7 #include "libxfs.h"
   8 #include "addr.h"
   9 #include "command.h"
  10 #include "type.h"
  11 #include "io.h"
  12 #include "output.h"
  13
  14 static int hash_f(int argc, char **argv);
  15 static void hash_help(void);
  16
  17 static const cmdinfo_t hash_cmd =
  18         { "hash", NULL, hash_f, 1, 1, 0, N_("string"),
  19           N_("calculate hash value"), hash_help };
  20
  21 static void
  22 hash_help(void)
  23 {
  24         dbprintf(_(
  25 "\n"
  26 " 'hash' prints out the calculated hash value for a string using the\n"
  27 "directory/attribute code hash function.\n"
  28 "\n"
  29 " Usage:  \"hash <string>\"\n"
  30 "\n"
  31 ));
  32
  33 }
  34
  35 /* ARGSUSED */
  36 static int
  37 hash_f(
  38         int             argc,
  39         char            **argv)
  40 {
  41         xfs_dahash_t    hashval;
  42
  43         hashval = libxfs_da_hashname((unsigned char *)argv[1], (int)strlen(argv[1]));
  44         dbprintf("0x%x\n", hashval);
  45         return 0;
  46 }
  47
  48 void
  49 hash_init(void)
  50 {
  51         add_command(&hash_cmd);
  52 }