release/src/router/busybox/e2fsprogs/e2p/ostype.c

   1 /* vi: set sw=4 ts=4: */
   2 /*
   3  * getostype.c          - Get the Filesystem OS type
   4  *
   5  * Copyright (C) 2004,2005  Theodore Ts'o <tytso@mit.edu>
   6  *
   7  * This file can be redistributed under the terms of the GNU Library General
   8  * Public License
   9  */
  10
  11 #include "e2p.h"
  12 #include <string.h>
  13 #include <stdlib.h>
  14
  15 static const char *const os_tab[] =
  16         { "Linux",
  17           "Hurd",
  18           "Masix",
  19           "FreeBSD",
  20           "Lites",
  21           0 };
  22
  23 /*
  24  * Convert an os_type to a string
  25  */
  26 char *e2p_os2string(int os_type)
  27 {
  28         const char *os;
  29         char *ret;
  30
  31         if (os_type <= EXT2_OS_LITES)
  32                 os = os_tab[os_type];
  33         else
  34                 os = "(unknown os)";
  35
  36         ret = xstrdup(os);
  37         return ret;
  38 }
  39
  40 /*
  41  * Convert an os_type to a string
  42  */
  43 int e2p_string2os(char *str)
  44 {
  45         const char *const *cpp;
  46         int i = 0;
  47
  48         for (cpp = os_tab; *cpp; cpp++, i++) {
  49                 if (!strcasecmp(str, *cpp))
  50                         return i;
  51         }
  52         return -1;
  53 }
  54
  55 #ifdef TEST_PROGRAM
  56 int main(int argc, char **argv)
  57 {
  58         char    *s;
  59         int     i, os;
  60
  61         for (i=0; i <= EXT2_OS_LITES; i++) {
  62                 s = e2p_os2string(i);
  63                 os = e2p_string2os(s);
  64                 printf("%d: %s (%d)\n", i, s, os);
  65                 if (i != os) {
  66                         fprintf(stderr, "Failure!\n");
  67                         exit(1);
  68                 }
  69         }
  70         exit(0);
  71 }
  72 #endif