*
* Copyright (C) 2000 by Randolph Chung <tausq@debian.org>
*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
+ * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
*/
/* BB_AUDIT SUSv3 _NOT_ compliant -- option -G is not currently supported. */
/* 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>
*/
#include "busybox.h"
-#include "pwd_.h"
#include <stdio.h>
#include <unistd.h>
#include <sys/types.h>
-#ifdef CONFIG_SELINUX
-#include <selinux/selinux.h> /* for is_selinux_enabled() */
-#endif
-
#define PRINT_REAL 1
#define NAME_NOT_NUMBER 2
#define JUST_USER 4
#define JUST_GROUP 8
+#if ENABLE_SELINUX
+#define JUST_CONTEXT 16
+#endif
static short printf_full(unsigned int id, const char *arg, const char prefix)
{
const char *fmt = "%cid=%u";
- short status=EXIT_FAILURE;
+ short status = EXIT_FAILURE;
- if(arg) {
+ if (arg) {
fmt = "%cid=%u(%s)";
- status=EXIT_SUCCESS;
+ status = EXIT_SUCCESS;
}
- bb_printf(fmt, prefix, id, arg);
+ printf(fmt, prefix, id, arg);
return status;
}
-extern int id_main(int argc, char **argv)
+int id_main(int argc, char **argv);
+int id_main(int argc, char **argv)
{
struct passwd *p;
uid_t uid;
gid_t gid;
unsigned long flags;
short status;
-
+#if ENABLE_SELINUX
+ security_context_t scontext;
+#endif
/* Don't allow -n -r -nr -ug -rug -nug -rnug */
- bb_opt_complementally = "?u~g:g~u:r?ug:n?ug";
- flags = bb_getopt_ulflags(argc, argv, "rnug");
-
/* Don't allow more than one username */
- if (argc > (optind + 1))
- bb_show_usage();
+ opt_complementary = "?1:?:u--g:g--u:r?ug:n?ug" USE_SELINUX(":u--Z:Z--u:g--Z:Z--g");
+ flags = getopt32(argc, argv, "rnug" USE_SELINUX("Z"));
/* This values could be overwritten later */
uid = geteuid();
gid = getgid();
}
- if(argv[optind]) {
- p=getpwnam(argv[optind]);
- /* bb_xgetpwnam is needed because it exits on failure */
- uid = bb_xgetpwnam(argv[optind]);
+ if (argv[optind]) {
+ p = getpwnam(argv[optind]);
+ /* xuname2uid is needed because it exits on failure */
+ uid = xuname2uid(argv[optind]);
gid = p->pw_gid;
/* in this case PRINT_REAL is the same */
}
- if(flags & (JUST_GROUP | JUST_USER)) {
+ if (flags & (JUST_GROUP | JUST_USER USE_SELINUX(| JUST_CONTEXT))) {
/* JUST_GROUP and JUST_USER are mutually exclusive */
- if(flags & NAME_NOT_NUMBER) {
+ if (flags & NAME_NOT_NUMBER) {
/* bb_getpwuid and bb_getgrgid exit on failure so puts cannot segfault */
puts((flags & JUST_USER) ? bb_getpwuid(NULL, uid, -1 ) : bb_getgrgid(NULL, gid, -1 ));
} else {
- bb_printf("%u\n",(flags & JUST_USER) ? uid : gid);
- }
+ if (flags & JUST_USER) {
+ printf("%u\n", uid);
+ }
+ if (flags & JUST_GROUP) {
+ printf("%u\n", gid);
+ }
+ }
+
+#if ENABLE_SELINUX
+ if (flags & JUST_CONTEXT) {
+ selinux_or_die();
+ if (argc - optind == 1) {
+ bb_error_msg_and_die("can't print security context when user specified");
+ }
+
+ if (getcon(&scontext)) {
+ bb_error_msg_and_die("can't get process context");
+ }
+ printf("%s\n", scontext);
+ }
+#endif
/* exit */
- bb_fflush_stdout_and_exit(EXIT_SUCCESS);
+ fflush_stdout_and_exit(EXIT_SUCCESS);
}
/* Print full info like GNU id */
/* bb_getpwuid doesn't exit on failure here */
- status=printf_full(uid, bb_getpwuid(NULL, uid, 0), 'u');
+ status = printf_full(uid, bb_getpwuid(NULL, uid, 0), 'u');
putchar(' ');
/* bb_getgrgid doesn't exit on failure here */
- status|=printf_full(gid, bb_getgrgid(NULL, gid, 0), 'g');
-
-#ifdef CONFIG_SELINUX
- if ( is_selinux_enabled() ) {
- security_context_t mysid;
- char context[80];
- int len = sizeof(context);
-
- getcon(&mysid);
- context[0] = '\0';
- if (mysid) {
- len = strlen(mysid)+1;
- safe_strncpy(context, mysid, len);
- freecon(mysid);
- }else{
- safe_strncpy(context, "unknown",8);
- }
- bb_printf(" context=%s", context);
+ status |= printf_full(gid, bb_getgrgid(NULL, gid, 0), 'g');
+
+#if ENABLE_SELINUX
+ if (is_selinux_enabled()) {
+ security_context_t mysid;
+ const char *context;
+
+ context = "unknown";
+ getcon(&mysid);
+ if (mysid) {
+ context = alloca(strlen(mysid) + 1);
+ strcpy((char*)context, mysid);
+ freecon(mysid);
+ }
+ printf(" context=%s", context);
}
#endif
putchar('\n');
- bb_fflush_stdout_and_exit(status);
+ fflush_stdout_and_exit(status);
}
-
-/* END CODE */
-/*
-Local Variables:
-c-file-style: "linux"
-c-basic-offset: 4
-tab-width: 4
-End:
-*/
-
projects / oweals / busybox.git / blobdiff