goutmp/go_login.go
2018-06-08 20:30:00 -07:00

113 lines
2.7 KiB
Go

// Golang bindings for basic login/utmp accounting
package go_login
//#include <stdio.h>
//#include <stdlib.h>
//#include <sys/file.h>
//#include <string.h>
//#include <bsd/string.h>
//#include <unistd.h>
//#include <stdint.h>
//#include <time.h>
//#include <pwd.h>
//
//#include <utmp.h>
//#include <utmpx.h>
//#include <lastlog.h>
//
//typedef char char_t;
//
//
//void pututmp(struct utmpx* entry, char* name, char* host) {
// int32_t stat = system("echo ---- pre ----;who");
//
// entry->ut_type = USER_PROCESS;
// entry->ut_pid = getpid();
// strcpy(entry->ut_line, ttyname(STDIN_FILENO) + strlen("/dev/"));
// /* only correct for ptys named /dev/tty[pqr][0-9a-z] */
//
// strcpy(entry->ut_id, ttyname(STDIN_FILENO) + strlen("/dev/tty"));
// entry->ut_time = time(NULL);
// strcpy(entry->ut_user, name);
// strcpy(entry->ut_host, host);
// entry->ut_addr = 0;
// setutxent();
// pututxline(entry);
//
// stat = system("echo ---- post ----;who");
//}
//
//void unpututmp(struct utmpx* entry) {
// entry->ut_type = DEAD_PROCESS;
// memset(entry->ut_line, 0, UT_LINESIZE);
// entry->ut_time = 0;
// memset(entry->ut_user, 0, UT_NAMESIZE);
// setutxent();
// pututxline(entry);
//
// int32_t stat = system("echo ---- cleanup ----;who; lastlog");
//
// endutxent();
//}
//
//int putlastlogentry(int64_t t, int uid, char* line, char* host) {
// int retval = 0;
// FILE *f;
// struct lastlog l;
//
// strncpy(l.ll_line, line, UT_LINESIZE);
// l.ll_line[UT_LINESIZE-1] = '\0';
// strncpy(l.ll_host, host, UT_HOSTSIZE);
// l.ll_host[UT_HOSTSIZE-1] = '\0';
//
// l.ll_time = (time_t)t;
// printf("l: ll_line '%s', ll_host '%s', ll_time %d\n", l.ll_line, l.ll_host, l.ll_time);
//
// /* Write lastlog entry at fixed offset (uid * sizeof(struct lastlog) */
// if( NULL != (f = fopen("/var/log/lastlog", "rw+")) ) {
// if( !fseek(f, (uid * sizeof(struct lastlog)), SEEK_SET) ) {
// int fd = fileno(f);
// if( write(fd, &l, sizeof(l)) == sizeof(l) ) {
// retval = 1;
// int32_t stat = system("echo ---- lastlog ----; lastlog");
// }
// }
// fclose(f);
// }
// return retval;
//}
import "C"
import (
"fmt"
"os/user"
"time"
)
type UtmpEntry struct {
entry C.struct_utmpx
}
func Put_utmp(user string, host string) (UtmpEntry) {
var entry UtmpEntry
C.pututmp(&entry.entry, C.CString(user), C.CString(host))
return entry
}
func Unput_utmp(entry UtmpEntry) {
C.unpututmp(&entry.entry)
}
func Put_lastlog_entry(app string, usr string, host string) {
u, e := user.Lookup(usr)
if e != nil {
return
}
var uid uint32
fmt.Sscanf(u.Uid, "%d", &uid)
t := time.Now().Unix()
stat := C.putlastlogentry(C.int64_t(t), C.int(uid), C.CString(app), C.CString(host))
fmt.Println("stat was:",stat)
}