progenv.gperf revision 304210 
1%{
2/*
3 * Copyright is disclaimed as to the contents of this file.
4 *
5 * $FreeBSD: stable/10/usr.bin/getconf/progenv.gperf 304210 2016-08-16 08:30:28Z ngie $
6 */
7
8#include <sys/types.h>
9
10#include <string.h>
11#include <unistd.h>
12
13#include "getconf.h"
14
15/*
16 * Override gperf's built-in external scope.
17 */
18static const struct map *in_word_set(const char *str);
19
20/*
21 * The Standard seems a bit ambiguous over whether the POSIX_V6_*
22 * are specified with or without a leading underscore, so we just
23 * use both.
24 */
25/*
26 * The alt_path member gives the path containing another `getconf'
27 * executable which was compiled using the specified programming
28 * environment.  If it is NULL, the current executable is good enough.
29 * If we ever support multiple environments, this table will need to
30 * be updated.  (We cheat here and define the supported environments
31 * statically.)
32 */
33#if defined(__sparc64__) || defined(__amd64__)
34#define	have_LP64_OFF64		NULL
35#endif
36
37#if defined(__i386__) || defined(__powerpc__)
38#define	have_ILP32_OFFBIG	NULL
39#endif
40
41%}
42struct map { const char *name; const char *alt_path; int valid; };
43%%
44POSIX_V6_ILP32_OFF32, notdef
45POSIX_V6_ILP32_OFFBIG, have_ILP32_OFFBIG
46POSIX_V6_LP64_OFF64, have_LP64_OFF64
47POSIX_V6_LPBIG_OFFBIG, notdef
48_POSIX_V6_ILP32_OFF32, notdef
49_POSIX_V6_ILP32_OFFBIG, have_ILP32_OFFBIG
50_POSIX_V6_LP64_OFF64, have_LP64_OFF64
51_POSIX_V6_LPBIG_OFFBIG, notdef
52%%
53int
54find_progenv(const char *name, const char **alt_path)
55{
56	const struct map *rv;
57
58	rv = in_word_set(name);
59	if (rv != NULL) {
60		if (rv->valid) {
61			*alt_path = rv->alt_path;
62			return 1;
63		}
64		return -1;
65	}
66	return 0;
67}
68