Mercurial > hg > toybox
annotate toys/posix/uname.c @ 656:6df4ccc0acbe
Regularize command headers, update links to standards documents.
| author | Rob Landley <rob@landley.net> |
|---|---|
| date | Sat, 25 Aug 2012 18:08:51 -0500 |
| parents | 2986aa63a021 |
| children | 7e846e281e38 |
| rev | line source |
|---|---|
| 326 | 1 /* vi: set sw=4 ts=4: |
| 2 * | |
| 3 * uname.c - return system name | |
| 4 * | |
| 5 * Copyright 2008 Rob Landley <rob@landley.net> | |
| 6 * | |
|
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6df4ccc0acbe
Regularize command headers, update links to standards documents.
Rob Landley <rob@landley.net>
parents:
653
diff
changeset
|
7 * See http://opengroup.org/onlinepubs/9699919799/utilities/uname.html |
| 326 | 8 |
| 9 USE_UNAME(NEWTOY(uname, "amvrns", TOYFLAG_BIN)) | |
| 10 | |
| 11 config UNAME | |
| 12 bool "uname" | |
| 13 default y | |
| 14 help | |
| 15 usage: uname [-asnrvmpio] | |
| 16 | |
| 17 Print system information. | |
| 18 | |
| 19 -s System name | |
| 20 -n Network (domain) name | |
| 21 -r Release number | |
| 22 -v Version (build date) | |
| 23 -m Machine (hardware) name | |
| 24 -a All of the above | |
| 25 */ | |
| 26 | |
| 27 #include "toys.h" | |
| 28 | |
| 29 // If a 32 bit x86 build environment working in a chroot under an x86-64 | |
| 30 // kernel returns x86_64 for -m it confuses ./configure. Special case it. | |
| 31 | |
| 32 #if defined(__i686__) | |
| 33 #define GROSS "i686" | |
| 34 #elif defined(__i586__) | |
| 35 #define GROSS "i586" | |
| 36 #elif defined(__i486__) | |
| 37 #define GROSS "i486" | |
| 38 #elif defined(__i386__) | |
| 39 #define GROSS "i386" | |
| 40 #endif | |
| 41 | |
| 42 #define FLAG_a (1<<5) | |
| 43 | |
| 44 void uname_main(void) | |
| 45 { | |
| 46 int i, flags = toys.optflags, needspace=0; | |
| 47 | |
| 48 uname((void *)toybuf); | |
| 49 | |
| 50 if (!flags) flags=1; | |
| 51 for (i=0; i<5; i++) { | |
| 52 char *c = toybuf+(65*i); | |
| 53 | |
| 54 if (flags & ((1<<i)|FLAG_a)) { | |
| 55 int len = strlen(c); | |
| 56 | |
| 57 // This problem originates in autoconf, so of course the solution | |
| 58 // is horribly ugly. | |
| 59 #ifdef GROSS | |
| 327 | 60 if (i==4 && !strcmp(c,"x86_64")) printf(GROSS); |
| 326 | 61 else |
| 62 #endif | |
| 63 | |
| 64 if (needspace++) { | |
| 65 // We can't decrement on the first entry, because | |
| 66 // needspace would be 0 | |
| 67 *(--c)=' '; | |
| 68 len++; | |
| 69 } | |
| 70 xwrite(1, c, len); | |
| 71 } | |
| 72 } | |
| 73 putchar('\n'); | |
| 74 } |