Mercurial > hg > toybox
annotate toys/id.c @ 430:74f152c5fa30
This id implementation is not remotely SUSv4 compliant, default n until I get a chance to finish it.
| author | Rob Landley <rob@landley.net> |
|---|---|
| date | Sun, 05 Feb 2012 15:25:17 -0600 |
| parents | 12add511705e |
| children | 42a322adbd17 |
| rev | line source |
|---|---|
| 413 | 1 /* vi: set sw=4 ts=4: |
| 2 * | |
| 3 * id.c - print real and effective user and group IDs | |
| 4 * | |
| 5 * Copyright 2012 Sony Network Entertainment, Inc. | |
| 6 * | |
| 7 * by Tim Bird <tim.bird@am.sony.com> | |
| 8 * | |
| 9 * See http://www.opengroup.org/onlinepubs/009695399/utilities/id.html | |
| 10 | |
| 11 USE_ID(NEWTOY(id, "gru", TOYFLAG_BIN)) | |
| 12 | |
| 13 config ID | |
| 14 bool "id" | |
|
430
74f152c5fa30
This id implementation is not remotely SUSv4 compliant, default n until I get a chance to finish it.
Rob Landley <rob@landley.net>
parents:
413
diff
changeset
|
15 default n |
| 413 | 16 help |
| 17 usage: id [-gru] | |
| 18 | |
| 19 Print user and group ID. | |
| 20 | |
| 21 -g Show only the effective group ID | |
| 22 -r Show real ID instead of effective ID | |
| 23 -u Show only the effective user ID | |
| 24 */ | |
| 25 | |
| 26 #include "toys.h" | |
| 27 | |
| 28 #define FLAG_g (1<<2) | |
| 29 #define FLAG_r (1<<1) | |
| 30 #define FLAG_u 1 | |
| 31 | |
| 32 void id_main(void) | |
| 33 { | |
| 34 int flags = toys.optflags; | |
| 35 | |
| 36 uid_t uid; | |
| 37 gid_t gid; | |
| 38 | |
| 39 /* show effective, unless user specifies real */ | |
| 40 uid = geteuid(); | |
| 41 gid = getegid(); | |
| 42 | |
| 43 if (flags & FLAG_r) { | |
| 44 uid = getuid(); | |
| 45 gid = getgid(); | |
| 46 } | |
| 47 if (flags & FLAG_u) { | |
| 48 printf("%d\n", uid); | |
| 49 return; | |
| 50 } | |
| 51 if (flags & FLAG_g) { | |
| 52 printf("%d\n", gid); | |
| 53 return; | |
| 54 } | |
| 55 printf("%d %d\n", uid, gid); | |
| 56 } |