/*
* Class: org_mortbay_setuid_SetUID
* Method: getrlimitnofiles
* Signature: ()Lorg/mortbay/setuid/RLimit;
*/
JNIEXPORT jobject JNICALL Java_org_mortbay_setuid_SetUID_getrlimitnofiles
(JNIEnv *env, jclass j)
{
struct rlimit rlim;
int success = getrlimit(RLIMIT_NOFILE, &rlim);
if (success < 0)
{
throwNewJavaSecurityException(env, "getrlimit failed");
return NULL;
}
// get The java class org.mortbay.setuid.RLimit
jclass cls = (*env)->FindClass(env, "org/mortbay/setuid/RLimit");
if(!cls)
{
throwNewJavaSecurityException(env, "Class: org.mortbay.setuid.RLimit is not found!!!");
return NULL;
}
// get the default constructor of org.mortbay.setuid.RLimit
jmethodID constructorMethod = getJavaMethodId(env, cls, "<init>", "()V");
// construct org.mortbay.setuid.RLimit java object
jobject retVal = (*env)->NewObject(env, cls,constructorMethod);
if(!retVal)
{
throwNewJavaSecurityException(env, "Object Construction Error of Class: org.mortbay.setuid.RLimit!!!");
return NULL;
}
setJavaFieldInt(env, retVal, "_soft", rlim.rlim_cur);
setJavaFieldInt(env, retVal, "_hard", rlim.rlim_max);
(*env)->DeleteLocalRef(env, cls);
return retVal;
}
JNIEXPORT jobject JNICALL
Java_org_mortbay_setuid_SetUID_getpwuid(JNIEnv * env, jclass j, jint uid)
{
struct passwd* pw;
pw=getpwuid((uid_t) uid);
if (!pw)
{
char strErr[255];
sprintf(strErr, "User with uid %d is not found!!!", uid);
throwNewJavaSecurityException(env, strErr);
return NULL;
}
// get The java class org.mortbay.setuid.Passwd
jclass cls;
cls = (*env)->FindClass(env,"org/mortbay/setuid/Passwd");
if(!cls)
{
throwNewJavaSecurityException(env, "Class: org.mortbay.setuid.Passwd is not found!!!");
return NULL;
}
// get the default constructor of org.mortbay.setuid.Passwd
jmethodID constructorMethod = getJavaMethodId(env, cls, "<init>", "()V");
// construct org.mortbay.setuid.Passwd java object
jobject retVal = (*env)->NewObject(env, cls,constructorMethod);
if(!retVal)
{
throwNewJavaSecurityException(env, "Object Construction error of Class: org.mortbay.setuid.Passwd!!!");
return NULL;
}
// copy the struct passwd values to java object org.mortbay.setuid.Passwd
//char *pw_name;
setJavaFieldString(env, retVal, "_pwName", pw->pw_name);
//char *pw_passwd;
setJavaFieldString(env, retVal, "_pwPasswd", pw->pw_passwd);
//uid_t pw_uid;
setJavaFieldInt(env, retVal, "_pwUid", pw->pw_uid);
//gid_t pw_gid;
setJavaFieldInt(env, retVal, "_pwGid", pw->pw_gid);
//char *pw_gecos;
setJavaFieldString(env, retVal, "_pwGecos", pw->pw_gecos);
//char *pw_dir;
setJavaFieldString(env, retVal, "_pwDir", pw->pw_dir);
//char *pw_shell;
setJavaFieldString(env, retVal, "_pwShell", pw->pw_shell);
(*env)->DeleteLocalRef(env, cls);
return retVal;
}
int getJavaFieldInt(JNIEnv *env, jobject obj, const char *name)
{
jclass clazz = (*env)->GetObjectClass(env, obj);
jfieldID fieldId = (*env)->GetFieldID(env, clazz, name, "I");
if(!fieldId)
{
char strErr[255];
sprintf(strErr, "Java Object Field is not found: int %s !!!", name);
throwNewJavaSecurityException(env, strErr);
}
int val = (*env)->GetIntField(env, obj, fieldId);
(*env)->DeleteLocalRef(env, clazz);
return val;
}
jmethodID getJavaMethodId(JNIEnv *env, jclass clazz, const char *name, const char *sig)
{
jmethodID methodId = (*env)->GetMethodID(env, clazz,name,sig);
if(!methodId)
{
char strErr[255];
sprintf(strErr, "Java Method is not found: %s !!!", name);
throwNewJavaSecurityException(env, strErr);
return NULL;
}
return methodId;
}
void setJavaFieldLong(JNIEnv *env, jobject obj, const char *name, long value)
{
jclass clazz = (*env)->GetObjectClass(env, obj);
jfieldID fieldId = (*env)->GetFieldID(env, clazz, name, "L");
if(!fieldId)
{
char strErr[255];
sprintf(strErr, "Java Object Field is not found: long %s !!!", name);
throwNewJavaSecurityException(env, strErr);
}
(*env)->SetLongField(env, obj, fieldId, value);
(*env)->DeleteLocalRef(env, clazz);
}
void setJavaFieldString(JNIEnv *env, jobject obj, const char *name, const char *value)
{
jclass clazz = (*env)->GetObjectClass(env, obj);
jfieldID fieldId = (*env)->GetFieldID(env, clazz, name, "Ljava/lang/String;");
if(!fieldId)
{
char strErr[255];
sprintf(strErr, "Java Object Field is not found: String %s !!!", name);
throwNewJavaSecurityException(env, strErr);
}
jstring jstr = (*env)->NewStringUTF(env, value);
(*env)->SetObjectField(env, obj, fieldId, jstr);
(*env)->DeleteLocalRef(env, clazz);
}
JNIEXPORT jobject JNICALL
Java_org_mortbay_setuid_SetUID_getgrgid(JNIEnv * env, jclass j, jint gid)
{
struct group* gr;
gr=getgrgid(gid);
if (!gr)
{
char strErr[255];
sprintf(strErr, "Group with gid %d is not found!!!", gid);
throwNewJavaSecurityException(env, strErr);
return NULL;
}
// get The java class org.mortbay.setuid.Passwd
jclass cls;
cls = (*env)->FindClass(env,"org/mortbay/setuid/Group");
if(!cls)
{
throwNewJavaSecurityException(env, "Class: org.mortbay.setuid.Group is not found!!!");
return NULL;
}
// get the default constructor of org.mortbay.setuid.Group
jmethodID constructorMethod = getJavaMethodId(env, cls, "<init>", "()V");
// construct org.mortbay.setuid.Group java object
jobject retVal = (*env)->NewObject(env, cls,constructorMethod);
if(!retVal)
{
throwNewJavaSecurityException(env, "Object Construction Error of Class: org.mortbay.setuid.Group!!!");
return NULL;
}
// copy the struct grpup values to java object org.mortbay.setuid.Group
//char *gr_name;
setJavaFieldString(env, retVal, "_grName", gr->gr_name);
//char *gr_passwd;
setJavaFieldString(env, retVal, "_grPasswd", gr->gr_passwd);
//gid_t gr_gid;
setJavaFieldInt(env, retVal, "_grGid", gr->gr_gid);
if (gr->gr_mem != NULL)
{
int array_size, i;
jobjectArray gr_mems;
for(array_size =0; gr->gr_mem[array_size] != NULL; array_size++);
if(array_size)
{
jobjectArray strArr = (*env)->NewObjectArray(env, array_size,
(*env)->FindClass(env, "java/lang/String"),
(*env)->NewStringUTF(env, ""));
for(i=0;i<array_size;i++)
{
(*env)->SetObjectArrayElement(env,strArr,i,
(*env)->NewStringUTF(env, gr->gr_mem[i]));
}
// set string array field;
// find field
jfieldID fieldId = (*env)->GetFieldID(env, cls, "_grMem", "[Ljava/lang/String;");
if(!fieldId)
{
throwNewJavaSecurityException(env, "Java Object Field is not found: String _grMem!!!");
}
(*env)->SetObjectField(env, retVal, fieldId, strArr);
}
}
(*env)->DeleteLocalRef(env, cls);
return retVal;
}
JNIEXPORT jobject JNICALL
Java_org_eclipse_jetty_setuid_SetUID_getpwnam(JNIEnv * env, jclass j, jstring name)
{
struct passwd* pw;
jboolean iscopy;
char *pname;
pname = (char*) (*env)->GetStringUTFChars(env, name, &iscopy);
pw=getpwnam((char *) pname);
if (!pw)
{
char strErr[255];
sprintf(strErr, "User %s is not found!!!", pname);
throwNewJavaSecurityException(env, strErr);
return NULL;
}
// free as in amnesty
(*env)->ReleaseStringUTFChars( env, name, pname );
// get The java class org.eclipse.jetty.setuid.Passwd
jclass cls;
cls = (*env)->FindClass(env,"org/eclipse/jetty/setuid/Passwd");
if(!cls)
{
throwNewJavaSecurityException(env, "Class: org.eclipse.jetty.setuid.Passwd is not found!!!");
return NULL;
}
// get the default constructor of org.eclipse.jetty.setuid.Passwd
jmethodID constructorMethod = getJavaMethodId(env, cls, "<init>", "()V");
// construct org.eclipse.jetty.setuid.Passwd java object
jobject retVal = (*env)->NewObject(env, cls,constructorMethod);
if(!retVal)
{
throwNewJavaSecurityException(env, "Object Construction error of Class: org.eclipse.jetty.setuid.Passwd!!!");
return NULL;
}
// copy the struct passwd values to java object org.eclipse.jetty.setuid.Passwd
//char *pw_name;
setJavaFieldString(env, retVal, "_pwName", pw->pw_name);
//char *pw_passwd;
setJavaFieldString(env, retVal, "_pwPasswd", pw->pw_passwd);
//uid_t pw_uid;
setJavaFieldInt(env, retVal, "_pwUid", pw->pw_uid);
//gid_t pw_gid;
setJavaFieldInt(env, retVal, "_pwGid", pw->pw_gid);
//char *pw_gecos;
setJavaFieldString(env, retVal, "_pwGecos", pw->pw_gecos);
//char *pw_dir;
setJavaFieldString(env, retVal, "_pwDir", pw->pw_dir);
//char *pw_shell;
setJavaFieldString(env, retVal, "_pwShell", pw->pw_shell);
(*env)->DeleteLocalRef(env, cls);
return retVal;
}
