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 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 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 goto cleanupAndReturn; 79 } 80 jstr = (*env)->NewStringUTF(env, pwd.pw_name); 81 if (jstr == NULL) { 82 goto cleanupAndReturn; 83 } 84 (*env)->SetObjectField(env, obj, fid, jstr); 85 86 /* 87 * set uid 88 */ 89 fid = (*env)->GetFieldID(env, cls, "uid", "J"); 90 if (fid == 0) { 91 (*env)->ExceptionClear(env); 92 throwIllegalArgumentException(env, "invalid field: uid"); 93 goto cleanupAndReturn; 94 } 95 (*env)->SetLongField(env, obj, fid, pwd.pw_uid); 96 97 /* 98 * set gid 99 */ 100 fid = (*env)->GetFieldID(env, cls, "gid", "J"); 101 if (fid == 0) { 102 (*env)->ExceptionClear(env); 103 throwIllegalArgumentException(env, "invalid field: gid"); 104 goto cleanupAndReturn; 105 } 106 (*env)->SetLongField(env, obj, fid, pwd.pw_gid); 107 108 /* 109 * set supplementary groups 110 */ 111 fid = (*env)->GetFieldID(env, cls, "groups", "[J"); 112 if (fid == 0) { 113 (*env)->ExceptionClear(env); 114 throwIllegalArgumentException(env, "invalid field: groups"); 115 goto cleanupAndReturn; 116 } 117 118 jgroups = (*env)->NewLongArray(env, numSuppGroups); 119 if (jgroups == NULL) { 120 goto cleanupAndReturn; 121 } 122 jgroupsAsArray = (*env)->GetLongArrayElements(env, jgroups, 0); 123 if (jgroupsAsArray == NULL) { 124 goto cleanupAndReturn; 125 } 126 for (i = 0; i < numSuppGroups; i++) 127 jgroupsAsArray[i] = groups[i]; 128 (*env)->ReleaseLongArrayElements(env, jgroups, jgroupsAsArray, 0); 129 (*env)->SetObjectField(env, obj, fid, jgroups); 130 } 131 cleanupAndReturn: 132 free(groups); 133 134 return; 135 }