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Add export capability through the new -w flag.

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Discussed in: -arch
MFC after:	8 days
This commit is contained in:
Diomidis Spinellis 2007-04-18 08:55:54 +00:00
parent 545f17a3c8
commit 947ef7f187
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=168835
2 changed files with 57 additions and 7 deletions
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17
usr.bin/lastcomm/lastcomm.1
View File

@ -32,7 +32,7 @@
.\" From: @(#)lastcomm.1 8.1 (Berkeley) 6/6/93
.\" $FreeBSD$
.\"
.Dd April 4, 2007
.Dd April 18, 2007
.Dt LASTCOMM 1
.Os
.Sh NAME
@ -40,7 +40,11 @@
.Nd show last commands executed
.Sh SYNOPSIS
.Nm
.Oo
.Op Fl EScesu
|
.Op Fl w
.Oc
.Op Fl f Ar file
.Op Ar command ...\&
.Op Ar user ...\&
@ -68,6 +72,17 @@ Print the amount of elapsed time used by the process.
Print the amount of system time used by the process.
.It Fl u
Print the amount of user time used by the process.
.It Fl w
Write out the complete contents of each accounting record in a text format
that can be parsed by programs.
The elements are written in the order defined in
.Xr acct 5 .
Time intervals are printed in seconds using the C
.Xr printf 3
.Ql %g
format specifier,
the starting time is printed in seconds since the epoch,
and the various identifiers are printed using their symbolic names.
.It Fl f Ar file
Read from
.Ar file

47
usr.bin/lastcomm/lastcomm.c
View File

@ -67,6 +67,7 @@ char *flagbits(int);
const char *getdev(dev_t);
int requested(char *[], struct acct *);
static void usage(void);
static void write_record(struct acct *acp);
#define AC_UTIME 1 /* user */
#define AC_STIME 2 /* system */
@ -90,17 +91,20 @@ main(int argc, char *argv[])
int ch;
const char *acctfile;
int flags = 0;
int write_text = 0;
acctfile = _PATH_ACCT;
while ((ch = getopt(argc, argv, "f:usecSE")) != -1)
while ((ch = getopt(argc, argv, "f:uwsecSE")) != -1)
switch((char)ch) {
case 'f':
acctfile = optarg;
break;
case 'u':
flags |= AC_UTIME; /* user time */
break;
case 'w':
write_text = 1; /* user time */
break;
case 's':
flags |= AC_STIME; /* system time */
break;
@ -125,9 +129,11 @@ main(int argc, char *argv[])
}
/* default user + system time and starting time */
if (!flags) {
if (!flags && !write_text)
flags = AC_CTIME | AC_BTIME;
}
if (flags && write_text)
usage();
argc -= optind;
argv += optind;
@ -154,7 +160,7 @@ main(int argc, char *argv[])
do {
int rv;
if (fp != stdin) {
if (fp != stdin && !write_text) {
size -= sizeof(struct acct);
if (fseeko(fp, size, SEEK_SET) == -1)
err(1, "seek %s failed", acctfile);
@ -178,6 +184,11 @@ main(int argc, char *argv[])
if (*argv && !requested(argv, &ab))
continue;
if (write_text) {
write_record(&ab);
continue;
}
(void)printf("%-*.*s %-7s %-*s %-*s",
AC_COMM_LEN, AC_COMM_LEN, ab.ac_comm,
flagbits(ab.ac_flag),
@ -292,6 +303,30 @@ static void
usage(void)
{
(void)fprintf(stderr,
"usage: lastcomm [-EScesu] [-f file] [command ...] [user ...] [terminal ...]\n");
"usage: lastcomm [[-EScesu] | [-w]] [-f file] [command ...] [user ...] [terminal ...]\n");
exit(1);
}
static void
write_record(struct acct *acp)
{
(void)printf("%s %g %g %g",
acp->ac_comm,
expand(acp->ac_utime) / AC_HZ,
expand(acp->ac_stime) / AC_HZ,
expand(acp->ac_etime) / AC_HZ);
/* See if time_t is signed and use appropriate format. */
if ((time_t)-1 < 0)
(void)printf(" %ld", (long)(acp->ac_btime));
else
(void)printf(" %lu", (unsigned long)(acp->ac_btime));
(void)printf(" %s %s %d %g %s %s\n",
user_from_uid(acp->ac_uid, 0),
group_from_gid(acp->ac_gid, 0),
acp->ac_mem,
expand(acp->ac_io) / AC_HZ,
getdev(acp->ac_tty),
flagbits(acp->ac_flag));
}