xref: /illumos-gate/usr/src/cmd/ptools/pwdx/pwdx.c (revision 2a8bcb4e)
1*7c478bd9Sstevel@tonic-gate /*
2*7c478bd9Sstevel@tonic-gate  * CDDL HEADER START
3*7c478bd9Sstevel@tonic-gate  *
4*7c478bd9Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
5*7c478bd9Sstevel@tonic-gate  * Common Development and Distribution License, Version 1.0 only
6*7c478bd9Sstevel@tonic-gate  * (the "License").  You may not use this file except in compliance
7*7c478bd9Sstevel@tonic-gate  * with the License.
8*7c478bd9Sstevel@tonic-gate  *
9*7c478bd9Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*7c478bd9Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
11*7c478bd9Sstevel@tonic-gate  * See the License for the specific language governing permissions
12*7c478bd9Sstevel@tonic-gate  * and limitations under the License.
13*7c478bd9Sstevel@tonic-gate  *
14*7c478bd9Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
15*7c478bd9Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*7c478bd9Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
17*7c478bd9Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
18*7c478bd9Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
19*7c478bd9Sstevel@tonic-gate  *
20*7c478bd9Sstevel@tonic-gate  * CDDL HEADER END
21*7c478bd9Sstevel@tonic-gate  */
22*7c478bd9Sstevel@tonic-gate /*
23*7c478bd9Sstevel@tonic-gate  * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
24*7c478bd9Sstevel@tonic-gate  * Use is subject to license terms.
25*7c478bd9Sstevel@tonic-gate  */
26*7c478bd9Sstevel@tonic-gate 
27*7c478bd9Sstevel@tonic-gate #include <stdio.h>
28*7c478bd9Sstevel@tonic-gate #include <unistd.h>
29*7c478bd9Sstevel@tonic-gate #include <string.h>
30*7c478bd9Sstevel@tonic-gate #include <errno.h>
31*7c478bd9Sstevel@tonic-gate #include <libproc.h>
32*7c478bd9Sstevel@tonic-gate #include <sys/param.h>
33*7c478bd9Sstevel@tonic-gate 
34*7c478bd9Sstevel@tonic-gate static char *command;
35*7c478bd9Sstevel@tonic-gate 
36*7c478bd9Sstevel@tonic-gate static int
show_cwd(const char * arg)37*7c478bd9Sstevel@tonic-gate show_cwd(const char *arg)
38*7c478bd9Sstevel@tonic-gate {
39*7c478bd9Sstevel@tonic-gate 	char cwd[MAXPATHLEN], proc[128];
40*7c478bd9Sstevel@tonic-gate 	psinfo_t p;
41*7c478bd9Sstevel@tonic-gate 	int gcode;
42*7c478bd9Sstevel@tonic-gate 	int ret;
43*7c478bd9Sstevel@tonic-gate 
44*7c478bd9Sstevel@tonic-gate 	if (proc_arg_psinfo(arg, PR_ARG_PIDS, &p, &gcode) == -1) {
45*7c478bd9Sstevel@tonic-gate 		(void) fprintf(stderr, "%s: cannot examine %s: %s\n",
46*7c478bd9Sstevel@tonic-gate 		    command, arg, Pgrab_error(gcode));
47*7c478bd9Sstevel@tonic-gate 		return (1);
48*7c478bd9Sstevel@tonic-gate 	}
49*7c478bd9Sstevel@tonic-gate 
50*7c478bd9Sstevel@tonic-gate 	(void) snprintf(proc, sizeof (proc), "/proc/%d/path/cwd",
51*7c478bd9Sstevel@tonic-gate 	    (int)p.pr_pid);
52*7c478bd9Sstevel@tonic-gate 
53*7c478bd9Sstevel@tonic-gate 	if ((ret = readlink(proc, cwd, sizeof (cwd) - 1)) <= 0) {
54*7c478bd9Sstevel@tonic-gate 		(void) fprintf(stderr, "%s: cannot resolve cwd for %s: %s\n",
55*7c478bd9Sstevel@tonic-gate 		    command, arg, strerror(errno));
56*7c478bd9Sstevel@tonic-gate 		return (1);
57*7c478bd9Sstevel@tonic-gate 	}
58*7c478bd9Sstevel@tonic-gate 
59*7c478bd9Sstevel@tonic-gate 	cwd[ret] = '\0';
60*7c478bd9Sstevel@tonic-gate 
61*7c478bd9Sstevel@tonic-gate 	(void) printf("%d:\t%s\n", (int)p.pr_pid, cwd);
62*7c478bd9Sstevel@tonic-gate 	return (0);
63*7c478bd9Sstevel@tonic-gate }
64*7c478bd9Sstevel@tonic-gate 
65*7c478bd9Sstevel@tonic-gate int
main(int argc,char ** argv)66*7c478bd9Sstevel@tonic-gate main(int argc, char **argv)
67*7c478bd9Sstevel@tonic-gate {
68*7c478bd9Sstevel@tonic-gate 	int retc = 0;
69*7c478bd9Sstevel@tonic-gate 
70*7c478bd9Sstevel@tonic-gate 	if ((command = strrchr(argv[0], '/')) != NULL)
71*7c478bd9Sstevel@tonic-gate 		command++;
72*7c478bd9Sstevel@tonic-gate 	else
73*7c478bd9Sstevel@tonic-gate 		command = argv[0];
74*7c478bd9Sstevel@tonic-gate 
75*7c478bd9Sstevel@tonic-gate 	if (argc <= 1) {
76*7c478bd9Sstevel@tonic-gate 		(void) fprintf(stderr, "usage:\t%s pid ...\n", command);
77*7c478bd9Sstevel@tonic-gate 		(void) fprintf(stderr, "  (show process working directory)\n");
78*7c478bd9Sstevel@tonic-gate 	}
79*7c478bd9Sstevel@tonic-gate 
80*7c478bd9Sstevel@tonic-gate 	while (--argc >= 1)
81*7c478bd9Sstevel@tonic-gate 		retc += show_cwd(*++argv);
82*7c478bd9Sstevel@tonic-gate 
83*7c478bd9Sstevel@tonic-gate 	return (retc);
84*7c478bd9Sstevel@tonic-gate }
85