Hello.
this is beginner programmer.
If u have more time, would you check this code.?
please give me the answer how to slove this problem...?
÷ºÎ ÆÄÀÏ ==> wtmpx.dat ·Î±× ÆÄÀÏ
************************************************** **************************
if( this.openFileDialog1.ShowDialog() == DialogResult.OK)
{
string line = null;
FileStream inStream = new FileStream(this.openFileDialog1.FileName,
FileMode.Open);
StreamReader sr = new StreamReader(inStream, Encoding.Default);
int nCols = 16;
long nBytesToRead = inStream.Length;
if( nBytesToRead > 65536/4)
nBytesToRead = 65536/4;
int nLines = (int)(nBytesToRead/nCols) + 1;
string [] Lines = new string[nLines];
int nBytesRead=0;
for( int i=0; i<nLines ; i++)
{
StringBuilder NextLine = new StringBuilder();
NextLine.Capacity = 2*nCols;
for( int j=0; j< nCols; j++)
{
int NextByte = inStream.ReadByte();
nBytesRead++;
if(NextByte < 0 || nBytesRead > 65536)
break;
char NextChar = (char)NextByte;
if(NextChar < 16)
//NextLine.Append(string.Format("{0,1:x}", (int)NextChar));
NextLine.Append(string.Format("{0,1:x}", (int)NextChar));
else if(char.IsLetterOrDigit(NextChar) || char.IsPunctuation(NextChar))
NextLine.Append(" " + NextChar + " ");
else
//NextLine.Append(string.Format("{0,2:x}", (int)NextChar));
NextLine.Append(string.Format("{0,2:x}", (int)NextChar));
}
Lines[i] = NextLine.ToString();
}
inStream.Close();
this.richTextBox1.Lines = Lines;
}
}
************************************************** **************************
*******
À¯´Ð½º c¿¡¼* wtmpx.datÆÄÀÏÀ» ÀоîµéÀÌ´Â ¼Ò½º
************************************************** **************************
*******
#include <stdio.h>
#include <utmpx.h>
#include <errno.h>
#include <time.h>
main(int argc,char *argv[])
{
FILE *fp;
struct utmpx buffer;
int count = 0;
char yn;
struct tm *wtm;
char title[1024];
if(argc != 2){
printf("Usage : %s wtmpx\n",argv[0]);
exit(-1);
}
if((fp = fopen(argv[1],"r")) == NULL){
printf("FILE OPEN FAIL errno[%d]\n",errno);
exit(-1);
}
memset(title,0x00,sizeof(title));
sprintf(title,"%10s %32s %4s %32s %4s %4s %4s %4s %32s %257s\n",
"COUNT","USER","ID","DEVICE NAME","PID",
"TYPE","TERM","EXIT","TIME","HOST");
memset(&buffer,0x00,sizeof(buffer));
printf("%s",title);
printf("========================================== ================\n");
while(fread(&buffer,sizeof(buffer),1,fp) != 0){
count++;
printf("%10d ",count);
printf("%32s ",buffer.ut_user);
printf("%4s ",buffer.ut_id);
printf("%32s ",buffer.ut_line);
printf("%4d ",buffer.ut_pid);
printf("%4d ",buffer.ut_type);
printf("%4d ",buffer.ut_exit.e_termination);
printf("%4d ",buffer.ut_exit.e_exit);
printf("%32s ",ctime((const time_t *)&buffer.ut_tv));
printf("%257s ",buffer.ut_host);
printf("\n");
if(!(count%10)){
printf("========================================== =====;
printf("continue([y]/n)?");
yn=getchar();
if(yn == 'N' || yn == 'n'){
break;
}
printf("%s",title);
}
memset(&buffer,0x00,sizeof(buffer));
}
printf("END\n");
}
************************************************** **************************
************
utmp ±¸Á¶
************************************************** **************************
************
/* Copyright (c) 1988 AT&T */
/* All Rights Reserved */
/* THIS IS UNPUBLISHED PROPRIETARY SOURCE CODE OF AT&T */
/* The copyright notice above does not evidence any */
/* actual or intended publication of such source code. */
/*
* Copyright (c) 1996-1997, by Sun Microsystems, Inc.
* All rights reserved.
*/
#ifndef _UTMP_H
#define _UTMP_H
#pragma ident "@(#)utmp.h 1.17 97/08/23 SMI" /* SVr4.0 1.5.1.7 */
/*
* Note: The getutent(3c) family of interfaces are obsolete.
* The getutxent(3c) family provide a superset of this functionality
* and should be used in place of getutent(3c).
*/
#include <sys/types.h>
#ifdef __cplusplus
extern "C" {
#endif
#if !defined(_XPG4_2) || defined(__EXTENSIONS__)
#define UTMP_FILE "/var/adm/utmp"
#define WTMP_FILE "/var/adm/wtmp"
#endif
#define ut_name ut_user
#if !defined(_XPG4_2) || defined(__EXTENSIONS__)
struct exit_status {
short e_termination; /* Process termination status */
short e_exit; /* Process exit status */
};
#else
struct ut_exit_status {
short ut_e_termination; /* Process termination status */
short ut_e_exit; /* Process exit status */
};
#endif /* !defined(_XPG4_2) || defined(__EXTENSIONS__) */
#if !defined(_XPG4_2) || defined(__EXTENSIONS__)
/*
* This data structure describes the utmp entries returned by
* the getutent(3c) family of APIs. It does not (necessarily)
* correspond to the contents of the utmp or wtmp files.
*
* Applications should only interact with this subsystem via
* the getutxent(3c) family of APIs, as the getutent(3c) family
* are obsolete.
*/
struct utmp {
char ut_user[8]; /* User login name */
char ut_id[4]; /* /etc/inittab id(usually line #)
*/
char ut_line[12]; /* device name (console, lnxx) */
short ut_pid; /* short for compat. - process id */
short ut_type; /* type of entry */
struct exit_status ut_exit; /* The exit status of a process */
/* marked as DEAD_PROCESS. */
time_t ut_time; /* time entry was made */
};
#include <sys/types32.h>
#include <inttypes.h>
/*
* This data structure describes the utmp *file* contents using
* fixed-width data types. It should only be used by the implementation.
*
* Applications should use the getutxent(3c) family of routines to interact
* with this database.
*/
struct futmp {
char ut_user[8]; /* User login name */
char ut_id[4]; /* /etc/inittab id */
char ut_line[12]; /* device name (console, lnxx) */
int16_t ut_pid; /* process id */
int16_t ut_type; /* type of entry */
struct {
int16_t e_termination; /* Process termination status */
int16_t e_exit; /* Process exit status */
} ut_exit; /* The exit status of a process */
time32_t ut_time; /* time entry was made */
};
#endif /* !defined(_XPG4_2) || defined(__EXTENSIONS__) */
/* Definitions for ut_type */
#define EMPTY 0
#define RUN_LVL 1
#define BOOT_TIME 2
#define OLD_TIME 3
#define NEW_TIME 4
#define INIT_PROCESS 5 /* Process spawned by "init" */
#define LOGIN_PROCESS 6 /* A "getty" process waiting for login */
#define USER_PROCESS 7 /* A user process */
#define DEAD_PROCESS 8
#if !defined(_XPG4_2) || defined(__EXTENSIONS__)
#define ACCOUNTING 9
#define UTMAXTYPE ACCOUNTING /* Largest legal value of ut_type */
/* Special strings or formats used in the "ut_line" field when */
/* accounting for something other than a process. */
/* No string for the ut_line field can be more than 11 chars + */
/* a NULL in length. */
#define RUNLVL_MSG "run-level %c"
#define BOOT_MSG "system boot"
#define OTIME_MSG "old time"
#define NTIME_MSG "new time"
#define PSRADM_MSG "%03d %s" /* processor on or off */
/* Define and macro for determing if a normal user wrote the entry */
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************************************************** **************************
***
/* and marking the utmpx entry as a normal user */
#define NONROOT_USR 2
#define nonuser(ut) ((ut).ut_exit.e_exit == NONROOT_USR ? 1 : 0)
#define setuser(ut) ((ut).ut_exit.e_exit = NONROOT_USR)
#if defined(__STDC__)
extern void endutent(void);
extern struct utmp *getutent(void);
extern struct utmp *getutid(const struct utmp *);
extern struct utmp *getutline(const struct utmp *);
extern struct utmp *pututline(const struct utmp *);
extern void setutent(void);
extern int utmpname(const char *);
#else
extern void endutent();
extern struct utmp *getutent();
extern struct utmp *getutid();
extern struct utmp *getutline();
extern struct utmp *pututline();
extern void setutent();
extern int utmpname();
#endif
#endif /* !defined(_XPG4_2) || defined(__EXTENSIONS__) */
#ifdef __cplusplus
}
#endif
#endif /* _UTMP_H */
