os_test.c revision 9bea4c13fca0e3bb4b719dcb3ed63d47d479294e 
1
2#include <stdio.h>
3#include <stdlib.h>
4#include <string.h>
5
6// This program determines which OS that this Valgrind installation
7// supports, which depends on what was chosen at configure-time.
8//
9// We return:
10// - 0 if the machine matches the asked-for OS
11// - 1 if it doesn't match but does match the name of another OS
12// - 2 if it doesn't match the name of any OS
13// - 3 if there was a usage error (it also prints an error message)
14
15// Nb: When updating this file for a new OS, add the name to
16// 'all_OSes' as well as adding go().
17
18#define False  0
19#define True   1
20typedef int    Bool;
21
22char* all_OSes[] = {
23   "linux",
24   "aix5",
25   "darwin",
26   NULL
27};
28
29static Bool go(char* OS)
30{
31#if defined(VGO_linux)
32   if ( 0 == strcmp( OS, "linux" ) ) return True;
33
34#elif defined(VGO_aix5)
35   if ( 0 == strcmp( OS, "aix5" ) ) return True;
36
37#elif defined(VGO_darwin)
38   if ( 0 == strcmp( OS, "darwin" ) ) return True;
39
40#else
41#  error Unknown OS
42#endif   // VGO_*
43
44   return False;
45}
46
47//---------------------------------------------------------------------------
48// main
49//---------------------------------------------------------------------------
50int main(int argc, char **argv)
51{
52   int i;
53   if ( argc != 2 ) {
54      fprintf( stderr, "usage: os_test <OS-type>\n" );
55      exit(3);             // Usage error.
56   }
57   if (go( argv[1] )) {
58      return 0;            // Matched.
59   }
60   for (i = 0; NULL != all_OSes[i]; i++) {
61      if ( 0 == strcmp( argv[1], all_OSes[i] ) )
62         return 1;         // Didn't match, but named another OS.
63   }
64   return 2;               // Didn't match any OSes.
65}
66
67