// $Id$ --*- c -*--
-// Copyright (C) 2004 Enrico Scholz <enrico.scholz@informatik.tu-chemnitz.de>
+// Copyright (C) 2004-2006 Enrico Scholz <enrico.scholz@informatik.tu-chemnitz.de>
//
// 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
#include <sys/un.h>
#include <assert.h>
#include <signal.h>
+#include <sys/types.h>
+#include <pwd.h>
+#include <grp.h>
#include <linux/personality.h>
uint_least32_t personality_type;
int verbosity;
bool do_chroot;
- uid_t uid;
+ char const * uid;
xid_t xid;
char const * sync_sock;
char const * sync_msg;
WRITE_MSG(1,
"vcontext " VERSION " -- manages the creation of security contexts\n"
"This program is part of " PACKAGE_STRING "\n\n"
- "Copyright (C) 2004 Enrico Scholz\n"
+ "Copyright (C) 2004-2006 Enrico Scholz\n"
VERSION_COPYRIGHT_DISCLAIMER);
exit(0);
}
if (args->do_migrate && !args->do_migrateself)
Evc_ctx_migrate(xid);
- if (args->uid!=(uid_t)(-1) && getuid()!=args->uid) {
- Esetuid(args->uid);
- if (getuid()!=args->uid) {
+ if (args->uid != NULL) {
+ uid_t uid = 0;
+ unsigned long tmp;
+
+ if (!isNumberUnsigned(args->uid, &tmp, false)) {
+#ifdef __dietlibc__
+ struct passwd *pw;
+ pw = getpwnam(args->uid);
+ if (pw == NULL) {
+ WRITE_MSG(2, ENSC_WRAPPERS_PREFIX "Username '");
+ WRITE_STR(2, args->uid);
+ WRITE_MSG(2, "' does not exist\n");
+ return wrapper_exit_code;
+ }
+ uid = pw->pw_uid;
+ Einitgroups(args->uid, pw->pw_gid);
+ Esetgid(pw->pw_gid);
+#else
+ WRITE_MSG(2, ENSC_WRAPPERS_PREFIX "Uid '");
+ WRITE_STR(2, args->uid);
+ WRITE_MSG(2, "' is not a number\n");
+ return wrapper_exit_code;
+#endif
+ }
+ else
+ uid = (uid_t) tmp;
+
+ Esetuid((uid_t) uid);
+ if (getuid()!=uid) {
WRITE_MSG(2, ENSC_WRAPPERS_PREFIX "Something went wrong while changing the UID\n");
exit(wrapper_exit_code);
}
.is_silentexist = false,
.set_namespace = false,
.verbosity = 1,
- .uid = -1,
+ .uid = NULL,
.xid = VC_DYNAMIC_XID,
.personality_type = VC_BAD_PERSONALITY,
.personality_flags = 0,
case CMD_SILENTEXIST : args.is_silentexist = true; break;
case CMD_SYNCSOCK : args.sync_sock = optarg; break;
case CMD_SYNCMSG : args.sync_msg = optarg; break;
- case CMD_UID : args.uid = atol(optarg); break;
+ case CMD_UID : args.uid = optarg; break;
case CMD_XID : args.xid = Evc_xidopt2xid(optarg,true); break;
case CMD_SILENT : --args.verbosity; break;
case CMD_PERSTYPE :