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| author | Erik Andersen <andersen@codepoet.org> | 2000-05-01 19:10:52 +0000 |
|---|---|---|
| committer | Erik Andersen <andersen@codepoet.org> | 2000-05-01 19:10:52 +0000 |
| commit | 94f5e0ba7ca7af260f4bf2d8c77b8e6f6f528b18 (patch) | |
| tree | 7f40ce6f49ca9ce727653928d1b9f655afb5cb66 /coreutils/id.c | |
| parent | 28c49b6c9c98dc592759063d10c49b209e849cae (diff) | |
| download | busybox-w32-94f5e0ba7ca7af260f4bf2d8c77b8e6f6f528b18.tar.gz busybox-w32-94f5e0ba7ca7af260f4bf2d8c77b8e6f6f528b18.tar.bz2 busybox-w32-94f5e0ba7ca7af260f4bf2d8c77b8e6f6f528b18.zip | |
Some accrued fixes/updates.
* cp/mv now accepts (and ignores) the -f flag, since it always
does force anyway
* tail can now accept -<num> commands (e.g. -10) for better
compatibility with the standard tail command
* added a simple id implementation; doesn't support supp. groups yet
Diffstat (limited to 'coreutils/id.c')
| -rw-r--r-- | coreutils/id.c | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/coreutils/id.c b/coreutils/id.c new file mode 100644 index 000000000..8ded0e521 --- /dev/null +++ b/coreutils/id.c | |||
| @@ -0,0 +1,92 @@ | |||
| 1 | /* vi: set sw=4 ts=4: */ | ||
| 2 | /* | ||
| 3 | * Mini id implementation for busybox | ||
| 4 | * | ||
| 5 | * | ||
| 6 | * Copyright (C) 2000 by Randolph Chung <tausq@debian.org> | ||
| 7 | * | ||
| 8 | * This program is free software; you can redistribute it and/or modify | ||
| 9 | * it under the terms of the GNU General Public License as published by | ||
| 10 | * the Free Software Foundation; either version 2 of the License, or | ||
| 11 | * (at your option) any later version. | ||
| 12 | * | ||
| 13 | * This program is distributed in the hope that it will be useful, | ||
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
| 16 | * General Public License for more details. | ||
| 17 | * | ||
| 18 | * You should have received a copy of the GNU General Public License | ||
| 19 | * along with this program; if not, write to the Free Software | ||
| 20 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
| 21 | * | ||
| 22 | */ | ||
| 23 | |||
| 24 | #include "internal.h" | ||
| 25 | #include <stdio.h> | ||
| 26 | #include <unistd.h> | ||
| 27 | #include <pwd.h> | ||
| 28 | #include <grp.h> | ||
| 29 | #include <sys/types.h> | ||
| 30 | |||
| 31 | static const char id_usage[] = | ||
| 32 | "id [OPTIONS]... [USERNAME]\n\n" | ||
| 33 | "Print information for USERNAME or the current user\n\n" | ||
| 34 | "\t-g\tprints only the group ID\n" | ||
| 35 | "\t-u\tprints only the user ID\n" | ||
| 36 | "\t-r\tprints the real user ID instead of the effective ID (with -ug)\n\n"; | ||
| 37 | |||
| 38 | extern int id_main(int argc, char **argv) | ||
| 39 | { | ||
| 40 | int no_user = 0, no_group = 0, print_real = 0; | ||
| 41 | char *cp, *user, *group; | ||
| 42 | gid_t gid; | ||
| 43 | |||
| 44 | cp = user = group = NULL; | ||
| 45 | |||
| 46 | argc--; argv++; | ||
| 47 | |||
| 48 | while (argc > 0) { | ||
| 49 | cp = *argv; | ||
| 50 | if (*cp == '-') { | ||
| 51 | switch (*++cp) { | ||
| 52 | case 'u': no_group = 1; break; | ||
| 53 | case 'g': no_user = 1; break; | ||
| 54 | case 'r': print_real = 1; break; | ||
| 55 | default: usage(id_usage); | ||
| 56 | } | ||
| 57 | } else { | ||
| 58 | user = cp; | ||
| 59 | } | ||
| 60 | argc--; argv++; | ||
| 61 | } | ||
| 62 | |||
| 63 | if (no_user && no_group) usage(id_usage); | ||
| 64 | |||
| 65 | if (user == NULL) { | ||
| 66 | user = xmalloc(9); | ||
| 67 | group = xmalloc(9); | ||
| 68 | if (print_real) { | ||
| 69 | my_getpwuid(user, getuid()); | ||
| 70 | my_getgrgid(group, getgid()); | ||
| 71 | } else { | ||
| 72 | my_getpwuid(user, geteuid()); | ||
| 73 | my_getgrgid(group, getegid()); | ||
| 74 | } | ||
| 75 | } else { | ||
| 76 | group = xmalloc(9); | ||
| 77 | gid = my_getpwnamegid(user); | ||
| 78 | my_getgrgid(group, gid); | ||
| 79 | } | ||
| 80 | |||
| 81 | if (no_group) printf("%u\n", my_getpwnam(user)); | ||
| 82 | else if (no_user) printf("%u\n", my_getgrnam(group)); | ||
| 83 | else | ||
| 84 | printf("uid=%u(%s) gid=%u(%s)\n", | ||
| 85 | my_getpwnam(user), user, my_getgrnam(group), group); | ||
| 86 | |||
| 87 | |||
| 88 | exit(0); | ||
| 89 | } | ||
| 90 | |||
| 91 | |||
| 92 | /* END CODE */ | ||