Bugzilla Bug #688225 - (dogtagIPAv2.1) TRACKER: of the Dogtag fixes for freeIPA 2.1IPA_v2_RHEL_6_2_20111003

git-svn-id: svn+ssh://svn.fedorahosted.org/svn/pki/tags/IPA_v2_RHEL_6_2_20111003@2252 c9f7a03b-bd48-0410-a16d-cbbf54688b0b

1 files changed, 166 insertions, 0 deletions

diff --git a/pki/base/osutil/src/com/netscape/osutil/UserID.c b/pki/base/osutil/src/com/netscape/osutil/UserID.c
new file mode 100644
index 000000000..456fe10fd
--- /dev/null
+++ b/pki/base/osutil/src/com/netscape/osutil/UserID.c
@@ -0,0 +1,166 @@
+// --- BEGIN COPYRIGHT BLOCK ---
+// 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; version 2 of the License.
+//
+// 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.,
+// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+//
+// (C) 2007 Red Hat, Inc.
+// All rights reserved.
+// --- END COPYRIGHT BLOCK ---
+
+/*
+ * Native wrappers for setuid/getuid
+ */
+
+#include <jni.h>
+#include "com_netscape_osutil_UserID.h"
+#include "unixdefs.h"
+#include <unistd.h>
+#include <sys/types.h>
+#include <pwd.h>
+#include <errno.h>
+#include <stdlib.h>
+
+/*
+ * Throw an IllegalArgumentException 
+ */
+void
+unix_throw_exception(JNIEnv *env, const char *exception, const char *reason)
+{
+	jclass exc;
+
+	exc = (*env)->FindClass(env, exception);
+	if (exc) /* If unable to find the new exception class, give up. */
+		(*env)->ThrowNew(env, exc, reason);
+}
+
+/*
+ * Convert a jstring name into a uid_t value
+ */
+static uid_t
+name_to_uid(JNIEnv *env, jstring name) 
+{
+	const char *username = (*env)->GetStringUTFChars(env, name, 0);
+	struct passwd *pw;
+	int ret;
+
+	if (NULL == username) {
+		unix_throw_exception(env, ILLARG, "can't convert username");
+		return -1;
+	}
+
+	pw = getpwnam(username);
+
+	if (NULL == pw) {
+		/* XXX I suppose the failed user name would be useful here */
+		unix_throw_exception(env, ILLARG, "no such user");
+		return -1;
+	}
+
+	ret = pw->pw_uid;
+	free(pw);
+	return ret;
+}
+
+/*
+ * Class:     com_netscape_osutil_UserID
+ * Method:    get
+ * Signature: ()I
+ */
+JNIEXPORT jint JNICALL
+Java_com_netscape_osutil_UserID_get(JNIEnv *env, jclass cls)
+{
+	return getuid();
+}
+
+/*
+ * Class:     com_netscape_certsrv_unix_UserID
+ * Method:    getEffective
+ * Signature: ()I
+ */
+JNIEXPORT jint JNICALL
+Java_com_netscape_osutil_UserID_getEffective(JNIEnv *env, jclass cls)
+{
+	return geteuid();
+}
+
+/*
+ * Class:     com_netscape_certsrv_unix_UserID
+ * Method:    set
+ * Signature: (I)Z
+ */
+JNIEXPORT void JNICALL
+Java_com_netscape_osutil_UserID_set__I(JNIEnv *env, jclass cls, jint id)
+{
+	int status = setuid(id);
+
+	if (status != 0) {
+		switch (errno) {
+		case EINVAL:
+			unix_throw_exception(env, ILLARG, "bad uid value");
+			break;
+		case EPERM:
+			unix_throw_exception(env, SECURITY, "permission denied");
+			break;
+		} 
+	}
+}
+
+/*
+ * Class:     com_netscape_certsrv_unix_UserID
+ * Method:    set
+ * Signature: (Ljava/lang/String;)Z
+ */
+JNIEXPORT void JNICALL
+Java_com_netscape_osutil_UserID_set__Ljava_lang_String_2(JNIEnv *env, jclass cls, jstring name)
+{
+	int id = name_to_uid(env, name);
+
+	if (id >= 0)
+		Java_com_netscape_osutil_UserID_set__I(env, cls, id);
+}
+
+/*
+ * Class:     com_netscape_certsrv_unix_UserID
+ * Method:    setEffective
+ * Signature: (I)Z
+ */
+JNIEXPORT void JNICALL
+Java_com_netscape_osutil_UserID_setEffective__I(JNIEnv *env, jclass cls, jint id)
+{
+	int status = seteuid(id);
+
+	if (status != 0) {
+		switch (errno) {
+		case EINVAL:
+			unix_throw_exception(env, ILLARG, "bad uid value");
+			break;
+		case EPERM:
+			unix_throw_exception(env, SECURITY, "permission denied");
+			break;
+		} 
+	}
+}
+
+/*
+ * Class:     com_netscape_certsrv_unix_UserID
+ * Method:    setEffective
+ * Signature: (Ljava/lang/String;)Z
+ */
+JNIEXPORT void JNICALL
+Java_com_netscape_osutil_UserID_setEffective__Ljava_lang_String_2(JNIEnv *env, jclass cls, jstring name)
+{
+	int id = name_to_uid(env, name);
+
+	if (id >= 0)
+		Java_com_netscape_osutil_UserID_setEffective__I(env, cls, id);
+}
+