xref: /illumos-gate/usr/src/cmd/lastcomm/lc_pacct.c (revision 2a8bcb4e)
1*7c478bd9Sstevel@tonic-gate /*
2*7c478bd9Sstevel@tonic-gate  * Copyright (c) 1980 Regents of the University of California.
3*7c478bd9Sstevel@tonic-gate  * All rights reserved. The Berkeley software License Agreement
4*7c478bd9Sstevel@tonic-gate  * specifies the terms and conditions for redistribution.
5*7c478bd9Sstevel@tonic-gate  *
6*7c478bd9Sstevel@tonic-gate  * Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T
7*7c478bd9Sstevel@tonic-gate  * All rights reserved.
8*7c478bd9Sstevel@tonic-gate  *
9*7c478bd9Sstevel@tonic-gate  *
10*7c478bd9Sstevel@tonic-gate  * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
11*7c478bd9Sstevel@tonic-gate  * Use is subject to license terms.
12*7c478bd9Sstevel@tonic-gate  */
13*7c478bd9Sstevel@tonic-gate 
14*7c478bd9Sstevel@tonic-gate #include "lastcomm.h"
15*7c478bd9Sstevel@tonic-gate 
16*7c478bd9Sstevel@tonic-gate /*
17*7c478bd9Sstevel@tonic-gate  * lc_pacct() provides the functionality of lastcomm when applied to the basic
18*7c478bd9Sstevel@tonic-gate  * SVR4 accounting file, /var/adm/pacct.  Definitions for this accounting file
19*7c478bd9Sstevel@tonic-gate  * format are given in <sys/acct.h>.
20*7c478bd9Sstevel@tonic-gate  */
21*7c478bd9Sstevel@tonic-gate 
22*7c478bd9Sstevel@tonic-gate extern ulong_t expand(comp_t);
23*7c478bd9Sstevel@tonic-gate 
24*7c478bd9Sstevel@tonic-gate static int
ok(int argc,char * argv[],int index,struct acct * acp)25*7c478bd9Sstevel@tonic-gate ok(int argc, char *argv[], int index, struct acct *acp)
26*7c478bd9Sstevel@tonic-gate {
27*7c478bd9Sstevel@tonic-gate 	int j;
28*7c478bd9Sstevel@tonic-gate 
29*7c478bd9Sstevel@tonic-gate 	for (j = index; j < argc; j++)
30*7c478bd9Sstevel@tonic-gate 		if (strcmp(getname(acp->ac_uid), argv[j]) &&
31*7c478bd9Sstevel@tonic-gate 		    strcmp(getdev(acp->ac_tty), argv[j]) &&
32*7c478bd9Sstevel@tonic-gate 		    strncmp(acp->ac_comm, argv[j], fldsiz(acct, ac_comm)))
33*7c478bd9Sstevel@tonic-gate 			break;
34*7c478bd9Sstevel@tonic-gate 	return (j == argc);
35*7c478bd9Sstevel@tonic-gate }
36*7c478bd9Sstevel@tonic-gate 
37*7c478bd9Sstevel@tonic-gate int
lc_pacct(char * name,int argc,char * argv[],int index)38*7c478bd9Sstevel@tonic-gate lc_pacct(char *name, int argc, char *argv[], int index)
39*7c478bd9Sstevel@tonic-gate {
40*7c478bd9Sstevel@tonic-gate 	struct acct buf[NACCT];
41*7c478bd9Sstevel@tonic-gate 	int bn, cc;
42*7c478bd9Sstevel@tonic-gate 	struct acct *acp;
43*7c478bd9Sstevel@tonic-gate 	struct stat sb;
44*7c478bd9Sstevel@tonic-gate 	time_t t;
45*7c478bd9Sstevel@tonic-gate 	int fd;
46*7c478bd9Sstevel@tonic-gate 
47*7c478bd9Sstevel@tonic-gate 	if ((fd = open(name, O_RDONLY)) < 0) {
48*7c478bd9Sstevel@tonic-gate 		perror(name);
49*7c478bd9Sstevel@tonic-gate 		return (1);
50*7c478bd9Sstevel@tonic-gate 	}
51*7c478bd9Sstevel@tonic-gate 
52*7c478bd9Sstevel@tonic-gate 	(void) fstat(fd, &sb);
53*7c478bd9Sstevel@tonic-gate 
54*7c478bd9Sstevel@tonic-gate 	if (sb.st_size % sizeof (struct acct)) {
55*7c478bd9Sstevel@tonic-gate 		(void) fprintf(stderr, gettext("lastcomm: accounting file"
56*7c478bd9Sstevel@tonic-gate 		    " is corrupted\n"));
57*7c478bd9Sstevel@tonic-gate 		return (1);
58*7c478bd9Sstevel@tonic-gate 	}
59*7c478bd9Sstevel@tonic-gate 
60*7c478bd9Sstevel@tonic-gate 	for (bn = ((unsigned)sb.st_size / BUF_SIZ) + 1; bn >= 0; bn--) {
61*7c478bd9Sstevel@tonic-gate 		if (lseek(fd, (unsigned)bn * BUF_SIZ, 0) == -1) {
62*7c478bd9Sstevel@tonic-gate 			perror("lseek");
63*7c478bd9Sstevel@tonic-gate 			return (1);
64*7c478bd9Sstevel@tonic-gate 		}
65*7c478bd9Sstevel@tonic-gate 		cc = read(fd, buf, BUF_SIZ);
66*7c478bd9Sstevel@tonic-gate 		if (cc < 0) {
67*7c478bd9Sstevel@tonic-gate 			perror("read");
68*7c478bd9Sstevel@tonic-gate 			return (1);
69*7c478bd9Sstevel@tonic-gate 		}
70*7c478bd9Sstevel@tonic-gate 		acp = buf + (cc / sizeof (buf[0])) - 1;
71*7c478bd9Sstevel@tonic-gate 		for (; acp >= buf; acp--) {
72*7c478bd9Sstevel@tonic-gate 			char *cp;
73*7c478bd9Sstevel@tonic-gate 			ulong_t x;
74*7c478bd9Sstevel@tonic-gate 
75*7c478bd9Sstevel@tonic-gate 			if (acp->ac_flag > 0100) {
76*7c478bd9Sstevel@tonic-gate 				(void) fprintf(stderr, gettext("lastcomm: "
77*7c478bd9Sstevel@tonic-gate 				    "accounting file is corrupted\n"));
78*7c478bd9Sstevel@tonic-gate 				return (1);
79*7c478bd9Sstevel@tonic-gate 			}
80*7c478bd9Sstevel@tonic-gate 			if (acp->ac_comm[0] == '\0')
81*7c478bd9Sstevel@tonic-gate 				(void) strcpy(acp->ac_comm, "?");
82*7c478bd9Sstevel@tonic-gate 			for (cp = &acp->ac_comm[0];
83*7c478bd9Sstevel@tonic-gate 			    cp < &acp->ac_comm[fldsiz(acct, ac_comm)] && *cp;
84*7c478bd9Sstevel@tonic-gate 			    cp++)
85*7c478bd9Sstevel@tonic-gate 				if (!isascii(*cp) || iscntrl(*cp))
86*7c478bd9Sstevel@tonic-gate 					*cp = '?';
87*7c478bd9Sstevel@tonic-gate 			if (argc > index && !ok(argc, argv, index, acp))
88*7c478bd9Sstevel@tonic-gate 				continue;
89*7c478bd9Sstevel@tonic-gate 			x = expand(acp->ac_utime) + expand(acp->ac_stime);
90*7c478bd9Sstevel@tonic-gate 			t = acp->ac_btime;
91*7c478bd9Sstevel@tonic-gate 			(void) printf("%-*.*s %s %-*s %-*s %6.2f secs %.16s\n",
92*7c478bd9Sstevel@tonic-gate 			    fldsiz(acct, ac_comm), fldsiz(acct, ac_comm),
93*7c478bd9Sstevel@tonic-gate 			    acp->ac_comm,
94*7c478bd9Sstevel@tonic-gate 			    flagbits(acp->ac_flag),
95*7c478bd9Sstevel@tonic-gate 			    NMAX, getname(acp->ac_uid),
96*7c478bd9Sstevel@tonic-gate 			    LMAX, getdev(acp->ac_tty),
97*7c478bd9Sstevel@tonic-gate 			    x / (double)HZ, ctime(&t));
98*7c478bd9Sstevel@tonic-gate 		}
99*7c478bd9Sstevel@tonic-gate 	}
100*7c478bd9Sstevel@tonic-gate 	return (0);
101*7c478bd9Sstevel@tonic-gate }
102