diff options
| author | Lorry Tar Creator <lorry-tar-importer@baserock.org> | 2014-12-02 09:01:21 +0000 |
|---|---|---|
| committer | <> | 2014-12-04 16:11:25 +0000 |
| commit | bdab5265fcbf3f472545073a23f8999749a9f2b9 (patch) | |
| tree | c6018dd03dea906f8f1fb5f105f05b71a7dc250a /util/byteorder.c | |
| download | ntp-dev-4.2.7p482.tar.gz | |
Imported from /home/lorry/working-area/delta_ntp/ntp-dev-4.2.7p482.tar.gz.ntp-dev-4.2.7p482
Diffstat (limited to 'util/byteorder.c')
| -rw-r--r-- | util/byteorder.c | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/util/byteorder.c b/util/byteorder.c new file mode 100644 index 0000000..188536f --- /dev/null +++ b/util/byteorder.c @@ -0,0 +1,56 @@ +/* + * This works on: + * Crays + * Conven + * sparc's + * Dec mip machines + * Dec alpha machines + * RS6000 + * SGI's + */ + +#include <stdio.h> + +int +main( + int argc, + char *argv[] + ) +{ + int i; + int big; + union { + unsigned long l; + char c[sizeof(long)]; + } u; + +#if defined(LONG8) + u.l = (((long)0x08070605) << 32) | (long)0x04030201; +#else + u.l = 0x04030201; +#endif + if (sizeof(long) > 4) { + if (u.c[0] == 0x08) big = 1; + else big = 0; + } else { + if (u.c[0] == 0x04) big = 1; + else big = 0; + } + for (i=0; i< sizeof(long); i++) { + if (big == 1 && (u.c[i] == (sizeof(long) - i))) { + continue; + } else if (big == 0 && (u.c[i] == (i+1))) { + continue; + } else { + big = -1; + break; + } + } + + if (big == 1) { + printf("XNTP_BIG_ENDIAN\n"); + } else if (big == 0) { + printf("XNTP_LITTLE_ENDIAN\n"); + } + exit(0); +} |