last.c File Reference

#include <sys/types.h>
#include <signal.h>
#include <string.h>
#include <utmp.h>
#include <time.h>
#include <stdlib.h>
#include <stdio.h>
#include <errno.h>
#include <minix/paths.h>

Include dependency graph for last.c:

Go to the source code of this file.

Data Structures
struct	logout
Defines
#define	FALSE   0
#define	TRUE   1
#define	RLOGIN   1
#define	BUFFER_SIZE   4096
#define	MAX_WTMP_COUNT   ( BUFFER_SIZE / sizeof(struct utmp) )
#define	min(a, b)   ( (a < b) ? a : b )
#define	max(a, b)   ( (a > b) ? a : b )
#define	NLOADS   3
Functions
	_PROTOTYPE (int main,(int argc, char **argv))
	_PROTOTYPE (void Sigint,(int sig))
	_PROTOTYPE (void usage,(void))
	_PROTOTYPE (void Process,(struct utmp *wtmp))
	_PROTOTYPE (int Print_Record,(struct utmp *wtmp))
	_PROTOTYPE (void Print_Duration,(long from, long to))
void	Sigint (int sig)
void	Sigquit (int sig)
void	usage ()
void	Process (struct utmp *wtmp)
int	Print_Record (struct utmp *wtmp)
void	Print_Duration (long from, long to)
void	Print_Uptime ()
void	Record_Logout_Time (struct utmp *wtmp)
int	main (int argc, argv)
Variables
static char *	Version = "@(#) LAST 1.7 (10/24/92)"
char	boot_limit = FALSE
char	count_limit = FALSE
char	tell_uptime = FALSE
int	print_count
char *	prog
int	arg_count
char **	args
long	boot_time = 0
char *	boot_down
logout *	first_link = NULL
int	interrupt = FALSE

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Define Documentation

#define BUFFER_SIZE   4096

Definition at line 66 of file last.c.

#define FALSE   0

Definition at line 62 of file last.c.

#define max (  a, b   )     ( (a > b) ? a : b )

Definition at line 70 of file last.c.

#define MAX_WTMP_COUNT   ( BUFFER_SIZE / sizeof(struct utmp) )

Definition at line 67 of file last.c. Referenced by main().

#define min (  a, b   )     ( (a < b) ? a : b )

Definition at line 69 of file last.c.

#define NLOADS   3

Referenced by Print_Uptime(), and showtop().

#define RLOGIN   1

Definition at line 64 of file last.c. Referenced by Print_Record().

#define TRUE   1

Definition at line 63 of file last.c.

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Function Documentation

_PROTOTYPE (  void  Print_Duration, (long from, long to)  )

_PROTOTYPE (  int  Print_Record, (struct utmp *wtmp)  )

_PROTOTYPE (  void  Process, (struct utmp *wtmp)  )

_PROTOTYPE (  void  usage, (void)  )

_PROTOTYPE (  void  Sigint, (int sig)  )

_PROTOTYPE (  int  main, (int argc, char **argv)  )

int main (  int  argc, argv  )

Definition at line 390 of file last.c. References _PATH_WTMP, arg_count, args, atoi, boot_limit, count_limit, ctime(), exit(), f, FALSE, fopen(), fprintf(), fread(), fseek(), ftell(), int(), interrupt, L, long(), MAX_WTMP_COUNT, min, NULL, perror(), print_count, printf, Process(), prog, SIG_IGN, SIGINT, signal(), SIGQUIT, size, stderr, strcmp, strrchr(), tell_uptime, time, time_t, TRUE, usage, and utmp::ut_time.

void Print_Duration (  long  from, long  to )

Definition at line 284 of file last.c. References days, L, max, and printf.

int Print_Record (  struct utmp *  wtmp  )

Definition at line 248 of file last.c. References arg_count, args, count_limit, ctime(), exit(), FALSE, i, if(), print_count, printf, RLOGIN, strncmp(), tell_uptime, and TRUE. Referenced by Process().

void Print_Uptime (   )

Definition at line 309 of file last.c. References _PATH_UTMP, boot_time, days, errno, exit(), fclose(), fopen(), fprintf(), fread(), getloadavg(), i, L, localtime(), NLOADS, now, NULL, printf, prog, stderr, strerror(), time, time_t, tm::tm_hour, tm::tm_min, and USER_PROCESS. Referenced by Process().

void Process (  struct utmp *  wtmp  )

Definition at line 175 of file last.c. References boot_down, boot_limit, boot_time, exit(), first_link, fprintf(), free, link, NULL, Print_Record(), Print_Uptime(), prog, putchar, stderr, strcmp, strncmp(), strncpy(), and tell_uptime.

void Record_Logout_Time (  struct utmp *  wtmp  )

Definition at line 365 of file last.c. References first_link, link, NULL, and strncmp().

void Sigint (  int  sig  )

Definition at line 109 of file last.c. References interrupt, and SIGINT.

void Sigquit (  int  sig  )

Definition at line 116 of file last.c. References interrupt, and SIGQUIT.

void usage (  void   )

Definition at line 123 of file last.c. References exit(), fprintf(), and stderr.

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Variable Documentation

int arg_count

Definition at line 89 of file last.c. Referenced by do_up(), main(), and Print_Record().

char** args

Definition at line 90 of file last.c.

char* boot_down

Definition at line 94 of file last.c. Referenced by Process().

char boot_limit = FALSE

Definition at line 84 of file last.c. Referenced by main(), and Process().

long boot_time = 0

Definition at line 93 of file last.c. Referenced by Print_Uptime(), and Process().

char count_limit = FALSE

Definition at line 85 of file last.c. Referenced by main(), and Print_Record().

logout* first_link = NULL

Definition at line 95 of file last.c. Referenced by Process(), and Record_Logout_Time().

int interrupt = FALSE

Definition at line 96 of file last.c.

int print_count

Definition at line 87 of file last.c. Referenced by main(), and Print_Record().

char* prog

Definition at line 88 of file last.c.

char tell_uptime = FALSE

Definition at line 86 of file last.c. Referenced by main(), Print_Record(), and Process().

char* Version = "@(#) LAST 1.7 (10/24/92)" [static]

Definition at line 80 of file last.c.

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