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#include <node.h>
#include <nan.h>
#include <syslog.h>
using v8::Function;
using v8::Int32;
using v8::Isolate;
using v8::Local;
using v8::Number;
using v8::Object;
using v8::String;
using v8::Value;
namespace {
class Worker: public Nan::AsyncWorker {
public:
Worker(Nan::Callback *callback, int priority, char* message)
: Nan::AsyncWorker(callback), priority(priority), message(message) {
}
~Worker() {
delete[] message;
}
void Execute() {
if(message)
syslog(priority, "%s", message);
}
void HandleOKCallback() {
Nan::HandleScope scope;
if(callback)
callback->Call(0, NULL, async_resource);
};
private:
int priority;
char* message;
};
static char ident[1024];
// wrap: void openlog(const char *ident, int option, int facility);
NAN_METHOD(OpenLog) {
const Nan::Utf8String arg0(info[0]);
Local<Int32> arg1 = Nan::To<Int32>(info[1]).ToLocalChecked();
Local<Int32> arg2 = Nan::To<Int32>(info[2]).ToLocalChecked();
// openlog() requires ident be statically allocated.
size_t length = arg0.length();
if(length) {
if(length > sizeof(ident)-1)
length = sizeof(ident)-1;
strncpy(ident, *arg0, length);
}
int option = arg1->Value();
int facility = arg2->Value();
openlog(ident, option, facility);
return;
}
static char* dupBuf(const Local<Value>& arg) {
const char* mem = node::Buffer::Data(arg);
size_t memsz = node::Buffer::Length(arg);
char* s = new char[memsz + 1];
memcpy(s, mem, memsz);
s[memsz] = 0;
return s;
}
static char* dupStr(const Local<Value>& arg) {
const Nan::Utf8String str(arg);
const char* mem = *str;
size_t memsz = str.length();
char* s = new char[memsz + 1];
memcpy(s, mem, memsz);
s[memsz] = 0;
return s;
}
// wrap: void syslog(int priority, const char *format, ...);
NAN_METHOD(SysLog) {
Local<Int32> arg0 = Nan::To<Int32>(info[0]).ToLocalChecked();
int priority = arg0->Value();
char* message = NULL;
Nan::Callback *callback = NULL;
if(info[2]->IsFunction())
callback = new Nan::Callback(info[2].As<Function>());
if(node::Buffer::HasInstance(info[1])) {
message = dupBuf(info[1]);
} else {
message = dupStr(info[1]);
}
if(message || callback) {
Nan::AsyncQueueWorker(new Worker(callback, priority, message));
}
return;
}
// wrap: int setlogmask(int mask);
NAN_METHOD(SetLogMask) {
Local<Int32> arg0 = Nan::To<Int32>(info[0]).ToLocalChecked();
int mask = arg0->Value();
int last = setlogmask(mask);
info.GetReturnValue().Set(Nan::New<Number>(last));
}
// wrap: void closelog(void);
NAN_METHOD(CloseLog) {
closelog();
return;
}
NAN_MODULE_INIT(Init) {
Nan::Export(target, "openlog", OpenLog);
Nan::Export(target, "syslog", SysLog);
Nan::Export(target, "setlogmask", SetLogMask);
Nan::Export(target, "closelog", CloseLog);
Local<Object> where = Nan::New<Object>();
#define DEFINE(N) Nan::Set(where, Nan::New<String>(#N).ToLocalChecked(), Nan::New<Number>(N))
// option argument to openlog() is an OR of any of these:
Nan::Set(target, Nan::New<String>("option").ToLocalChecked(), where = Nan::New<Object>());
DEFINE(LOG_CONS);
DEFINE(LOG_NDELAY);
DEFINE(LOG_ODELAY);
#ifndef LOG_PERROR
// not defined on Solaris but we want the exported object to be consistent
#define LOG_PERROR 0x0 // no-op
#endif
DEFINE(LOG_PERROR);
DEFINE(LOG_PID);
DEFINE(LOG_NOWAIT);
// facility argument to openlog() is any ONE of these:
Nan::Set(target, Nan::New<String>("facility").ToLocalChecked(), where = Nan::New<Object>());
DEFINE(LOG_AUTH);
#ifdef LOG_AUTHPRIV
DEFINE(LOG_AUTHPRIV);
#endif
DEFINE(LOG_CRON);
DEFINE(LOG_DAEMON);
#ifdef LOG_FTP
DEFINE(LOG_FTP);
#endif
DEFINE(LOG_KERN);
DEFINE(LOG_LOCAL0);
DEFINE(LOG_LOCAL1);
DEFINE(LOG_LOCAL2);
DEFINE(LOG_LOCAL3);
DEFINE(LOG_LOCAL4);
DEFINE(LOG_LOCAL5);
DEFINE(LOG_LOCAL6);
DEFINE(LOG_LOCAL7);
DEFINE(LOG_LPR);
DEFINE(LOG_MAIL);
DEFINE(LOG_NEWS);
DEFINE(LOG_SYSLOG);
DEFINE(LOG_USER);
DEFINE(LOG_UUCP);
// priority argument to syslog() is an OR of a facility and ONE log level:
Nan::Set(target, Nan::New<String>("level").ToLocalChecked(), where = Nan::New<Object>());
DEFINE(LOG_EMERG);
DEFINE(LOG_ALERT);
DEFINE(LOG_CRIT);
DEFINE(LOG_ERR);
DEFINE(LOG_WARNING);
DEFINE(LOG_NOTICE);
DEFINE(LOG_INFO);
DEFINE(LOG_DEBUG);
}
}
NODE_MODULE(core, Init);
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