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authorBernhard Reutner-Fischer2008-09-12 09:58:11 +0000
committerBernhard Reutner-Fischer2008-09-12 09:58:11 +0000
commit0ee1cb00849355126eb59e8f3fccb02b4db2f5ed (patch)
tree20e523022664ca62557912e6622affde7a02d8fd /coreutils
parent70de57f60a39d167870f3f59f2fa3f606e965239 (diff)
downloadbusybox-0ee1cb00849355126eb59e8f3fccb02b4db2f5ed.zip
busybox-0ee1cb00849355126eb59e8f3fccb02b4db2f5ed.tar.gz
- implement id -G (Tito Ragusa)
Diffstat (limited to 'coreutils')
-rw-r--r--coreutils/id.c47
1 files changed, 37 insertions, 10 deletions
diff --git a/coreutils/id.c b/coreutils/id.c
index 0fadd98..b2f3b20 100644
--- a/coreutils/id.c
+++ b/coreutils/id.c
@@ -7,10 +7,11 @@
* Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
*/
-/* BB_AUDIT SUSv3 _NOT_ compliant -- option -G is not currently supported. */
+/* BB_AUDIT SUSv3 compliant. */
/* Hacked by Tito Ragusa (C) 2004 to handle usernames of whatever length and to
* be more similar to GNU id.
* -Z option support: by Yuichi Nakamura <ynakam@hitachisoft.jp>
+ * Added -G option Tito Ragusa (C) 2008 for SUSv3.
*/
#include "libbb.h"
@@ -19,17 +20,18 @@
#define NAME_NOT_NUMBER 2
#define JUST_USER 4
#define JUST_GROUP 8
+#define JUST_ALL_GROUPS 16
#if ENABLE_SELINUX
-#define JUST_CONTEXT 16
+#define JUST_CONTEXT 32
#endif
-static int printf_full(unsigned int id, const char *arg, const char prefix)
+static int printf_full(unsigned int id, const char *arg, const char *prefix)
{
- const char *fmt = "%cid=%u";
+ const char *fmt = "%s%u";
int status = EXIT_FAILURE;
if (arg) {
- fmt = "%cid=%u(%s)";
+ fmt = "%s%u(%s)";
status = EXIT_SUCCESS;
}
printf(fmt, prefix, id, arg);
@@ -42,6 +44,8 @@ int id_main(int argc UNUSED_PARAM, char **argv)
struct passwd *p;
uid_t uid;
gid_t gid;
+ gid_t *groups;
+ int grp;
unsigned long flags;
short status;
#if ENABLE_SELINUX
@@ -49,8 +53,8 @@ int id_main(int argc UNUSED_PARAM, char **argv)
#endif
/* Don't allow -n -r -nr -ug -rug -nug -rnug */
/* Don't allow more than one username */
- opt_complementary = "?1:u--g:g--u:r?ug:n?ug" USE_SELINUX(":u--Z:Z--u:g--Z:Z--g");
- flags = getopt32(argv, "rnug" USE_SELINUX("Z"));
+ opt_complementary = "?1:u--g:g--u:G--u:u--G:g--G:G--g:r?ugG:n?ugG" USE_SELINUX(":u--Z:Z--u:g--Z:Z--g");
+ flags = getopt32(argv, "rnugG" USE_SELINUX("Z"));
/* This values could be overwritten later */
uid = geteuid();
@@ -68,6 +72,22 @@ int id_main(int argc UNUSED_PARAM, char **argv)
/* in this case PRINT_REAL is the same */
}
+ grp = getgroups(0, 0);
+ groups = (gid_t *)xmalloc(sizeof(gid_t) * grp);
+ getgroups(grp, (gid_t *)groups);
+
+ if (flags & (JUST_ALL_GROUPS)) {
+ while (grp--) {
+ if (flags & NAME_NOT_NUMBER)
+ printf("%s", bb_getgrgid(NULL, 0, *groups++));
+ else
+ printf("%d", *groups++);
+ bb_putchar((grp > 0) ? ' ' : '\n');
+ }
+ /* exit */
+ fflush_stdout_and_exit(EXIT_SUCCESS);
+ }
+
if (flags & (JUST_GROUP | JUST_USER USE_SELINUX(| JUST_CONTEXT))) {
/* JUST_GROUP and JUST_USER are mutually exclusive */
if (flags & NAME_NOT_NUMBER) {
@@ -101,10 +121,17 @@ int id_main(int argc UNUSED_PARAM, char **argv)
/* Print full info like GNU id */
/* bb_getpwuid(0) doesn't exit on failure (returns NULL) */
- status = printf_full(uid, bb_getpwuid(NULL, 0, uid), 'u');
+ status = printf_full(uid, bb_getpwuid(NULL, 0, uid), "uid=");
bb_putchar(' ');
- status |= printf_full(gid, bb_getgrgid(NULL, 0, gid), 'g');
-
+ status |= printf_full(gid, bb_getgrgid(NULL, 0, gid), "gid=");
+ printf(" groups=");
+ while (grp--) {
+ status |= printf_full(*groups, bb_getgrgid(NULL, 0, *groups), "");
+ if (grp > 0)
+ bb_putchar(',');
+ groups++;
+ }
+ /* Don't free groups */
#if ENABLE_SELINUX
if (is_selinux_enabled()) {
security_context_t mysid;