1 /*
2 * Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 #include <jni.h>
27 #include "com_sun_security_auth_module_SolarisSystem.h"
28 #include <stdio.h>
29 #include <pwd.h>
30 #include <unistd.h>
31 #include <stdlib.h>
32 #include <string.h>
33 #include <pwd.h>
34
throwIllegalArgumentException(JNIEnv * env,const char * msg)35 static void throwIllegalArgumentException(JNIEnv *env, const char *msg) {
36 jclass clazz = (*env)->FindClass(env, "java/lang/IllegalArgumentException");
37 if (clazz != NULL)
38 (*env)->ThrowNew(env, clazz, msg);
39 }
40
41 JNIEXPORT void JNICALL
Java_com_sun_security_auth_module_SolarisSystem_getSolarisInfo(JNIEnv * env,jobject obj)42 Java_com_sun_security_auth_module_SolarisSystem_getSolarisInfo
43 (JNIEnv *env, jobject obj) {
44
45 int i;
46 char pwd_buf[1024];
47 struct passwd pwd;
48 jsize numSuppGroups = getgroups(0, NULL);
49 jfieldID fid;
50 jstring jstr;
51 jlongArray jgroups;
52 jlong *jgroupsAsArray;
53 gid_t *groups;
54 jclass cls;
55
56 groups = (gid_t *)calloc(numSuppGroups, sizeof(gid_t));
57
58 if (groups == NULL) {
59 jclass cls = (*env)->FindClass(env,"java/lang/OutOfMemoryError");
60 if (cls != NULL)
61 (*env)->ThrowNew(env, cls, NULL);
62 return;
63 }
64
65 cls = (*env)->GetObjectClass(env, obj);
66
67 memset(pwd_buf, 0, sizeof(pwd_buf));
68 if (getpwuid_r(getuid(), &pwd, pwd_buf, sizeof(pwd_buf)) != NULL &&
69 getgroups(numSuppGroups, groups) != -1) {
70
71 /*
72 * set username
73 */
74 fid = (*env)->GetFieldID(env, cls, "username", "Ljava/lang/String;");
75 if (fid == 0) {
76 (*env)->ExceptionClear(env);
77 throwIllegalArgumentException(env, "invalid field: username");
78 return;
79 }
80 jstr = (*env)->NewStringUTF(env, pwd.pw_name);
81 if (jstr == NULL)
82 return;
83 (*env)->SetObjectField(env, obj, fid, jstr);
84
85 /*
86 * set uid
87 */
88 fid = (*env)->GetFieldID(env, cls, "uid", "J");
89 if (fid == 0) {
90 (*env)->ExceptionClear(env);
91 throwIllegalArgumentException(env, "invalid field: uid");
92 return;
93 }
94 (*env)->SetLongField(env, obj, fid, pwd.pw_uid);
95
96 /*
97 * set gid
98 */
99 fid = (*env)->GetFieldID(env, cls, "gid", "J");
100 if (fid == 0) {
101 (*env)->ExceptionClear(env);
102 throwIllegalArgumentException(env, "invalid field: gid");
103 return;
104 }
105 (*env)->SetLongField(env, obj, fid, pwd.pw_gid);
106
107 /*
108 * set supplementary groups
109 */
110 fid = (*env)->GetFieldID(env, cls, "groups", "[J");
111 if (fid == 0) {
112 (*env)->ExceptionClear(env);
113 throwIllegalArgumentException(env, "invalid field: groups");
114 return;
115 }
116
117 jgroups = (*env)->NewLongArray(env, numSuppGroups);
118 if (jgroups == NULL)
119 return;
120 jgroupsAsArray = (*env)->GetLongArrayElements(env, jgroups, 0);
121 if (jgroupsAsArray == NULL)
122 return;
123 for (i = 0; i < numSuppGroups; i++)
124 jgroupsAsArray[i] = groups[i];
125 (*env)->ReleaseLongArrayElements(env, jgroups, jgroupsAsArray, 0);
126 (*env)->SetObjectField(env, obj, fid, jgroups);
127 }
128 return;
129 }
130