lib/roken/parse_bytes.c

   1 /*
   2  * Copyright (c) 1999 Kungliga Tekniska Högskolan
   3  * (Royal Institute of Technology, Stockholm, Sweden).
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  *
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  *
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  *
  17  * 3. Neither the name of the Institute nor the names of its contributors
  18  *    may be used to endorse or promote products derived from this software
  19  *    without specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
  22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
  25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  31  * SUCH DAMAGE.
  32  */
  33
  34 #ifdef HAVE_CONFIG_H
  35 #include <config.h>
  36 RCSID("$Id$");
  37 #endif
  38
  39 #include <parse_units.h>
  40 #include "parse_bytes.h"
  41
  42 static struct units bytes_units[] = {
  43     { "gigabyte", 1024 * 1024 * 1024 },
  44     { "gbyte", 1024 * 1024 * 1024 },
  45     { "GB", 1024 * 1024 * 1024 },
  46     { "megabyte", 1024 * 1024 },
  47     { "mbyte", 1024 * 1024 },
  48     { "MB", 1024 * 1024 },
  49     { "kilobyte", 1024 },
  50     { "KB", 1024 },
  51     { "byte", 1 },
  52     { NULL, 0 }
  53 };
  54
  55 static struct units bytes_short_units[] = {
  56     { "GB", 1024 * 1024 * 1024 },
  57     { "MB", 1024 * 1024 },
  58     { "KB", 1024 },
  59     { NULL, 0 }
  60 };
  61
  62 int ROKEN_LIB_FUNCTION
  63 parse_bytes (const char *s, const char *def_unit)
  64 {
  65     return parse_units (s, bytes_units, def_unit);
  66 }
  67
  68 int ROKEN_LIB_FUNCTION
  69 unparse_bytes (int t, char *s, size_t len)
  70 {
  71     return unparse_units (t, bytes_units, s, len);
  72 }
  73
  74 int ROKEN_LIB_FUNCTION
  75 unparse_bytes_short (int t, char *s, size_t len)
  76 {
  77     return unparse_units_approx (t, bytes_short_units, s, len);
  78 }