xref: /titanic_41/usr/src/cmd/ptools/pfiles/pfiles.c (revision 257873cfc1dd3337766407f80397db60a56f2f5a)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 
22 /*
23  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 #pragma ident	"%Z%%M%	%I%	%E% SMI"
28 
29 #include <stdio.h>
30 #include <stdlib.h>
31 #include <unistd.h>
32 #include <fcntl.h>
33 #include <ctype.h>
34 #include <string.h>
35 #include <signal.h>
36 #include <dirent.h>
37 #include <limits.h>
38 #include <door.h>
39 #include <sys/types.h>
40 #include <sys/socket.h>
41 #include <sys/stat.h>
42 #include <sys/mkdev.h>
43 #include <sys/stropts.h>
44 #include <sys/timod.h>
45 #include <sys/un.h>
46 #include <libproc.h>
47 #include <netinet/in.h>
48 #include <netinet/udp.h>
49 #include <arpa/inet.h>
50 
51 #define	copyflock(dst, src) \
52 	(dst).l_type = (src).l_type;		\
53 	(dst).l_whence = (src).l_whence;	\
54 	(dst).l_start = (src).l_start;		\
55 	(dst).l_len = (src).l_len;		\
56 	(dst).l_sysid = (src).l_sysid;		\
57 	(dst).l_pid = (src).l_pid;
58 
59 static char *command;
60 static volatile int interrupt;
61 static int Fflag;
62 static boolean_t nflag = B_FALSE;
63 
64 static	void	intr(int);
65 static	void	dofcntl(struct ps_prochandle *, int, int, int);
66 static	void	dosocket(struct ps_prochandle *, int);
67 static	void	dotli(struct ps_prochandle *, int);
68 static	void	show_files(struct ps_prochandle *);
69 static	void	show_fileflags(int);
70 static	void	show_door(struct ps_prochandle *, int);
71 static	int	getflock(struct ps_prochandle *, int, struct flock *);
72 
73 int
74 main(int argc, char **argv)
75 {
76 	int retc = 0;
77 	int opt;
78 	int errflg = 0;
79 	struct ps_prochandle *Pr;
80 
81 	if ((command = strrchr(argv[0], '/')) != NULL)
82 		command++;
83 	else
84 		command = argv[0];
85 
86 	/* options */
87 	while ((opt = getopt(argc, argv, "Fn")) != EOF) {
88 		switch (opt) {
89 		case 'F':		/* force grabbing (no O_EXCL) */
90 			Fflag = PGRAB_FORCE;
91 			break;
92 		case 'n':
93 			nflag = B_TRUE;
94 			break;
95 		default:
96 			errflg = 1;
97 			break;
98 		}
99 	}
100 
101 	argc -= optind;
102 	argv += optind;
103 
104 	if (errflg || argc <= 0) {
105 		(void) fprintf(stderr, "usage:\t%s [-F] pid ...\n",
106 		    command);
107 		(void) fprintf(stderr,
108 		    "  (report open files of each process)\n");
109 		(void) fprintf(stderr,
110 		    "  -F: force grabbing of the target process\n");
111 		exit(2);
112 	}
113 
114 	/* catch signals from terminal */
115 	if (sigset(SIGHUP, SIG_IGN) == SIG_DFL)
116 		(void) sigset(SIGHUP, intr);
117 	if (sigset(SIGINT, SIG_IGN) == SIG_DFL)
118 		(void) sigset(SIGINT, intr);
119 	if (sigset(SIGQUIT, SIG_IGN) == SIG_DFL)
120 		(void) sigset(SIGQUIT, intr);
121 	(void) sigset(SIGPIPE, intr);
122 	(void) sigset(SIGTERM, intr);
123 
124 	(void) proc_initstdio();
125 
126 
127 	while (--argc >= 0 && !interrupt) {
128 		char *arg;
129 		psinfo_t psinfo;
130 		pid_t pid;
131 		int gret;
132 
133 		(void) proc_flushstdio();
134 
135 		/* get the specified pid and the psinfo struct */
136 		if ((pid = proc_arg_psinfo(arg = *argv++, PR_ARG_PIDS,
137 		    &psinfo, &gret)) == -1) {
138 			(void) fprintf(stderr, "%s: cannot examine %s: %s\n",
139 			    command, arg, Pgrab_error(gret));
140 			retc++;
141 		} else if ((Pr = Pgrab(pid, Fflag, &gret)) != NULL) {
142 			if (Pcreate_agent(Pr) == 0) {
143 				proc_unctrl_psinfo(&psinfo);
144 				(void) printf("%d:\t%.70s\n",
145 				    (int)pid, psinfo.pr_psargs);
146 				show_files(Pr);
147 				Pdestroy_agent(Pr);
148 			} else {
149 				(void) fprintf(stderr,
150 				    "%s: cannot control process %d\n",
151 				    command, (int)pid);
152 				retc++;
153 			}
154 			Prelease(Pr, 0);
155 			Pr = NULL;
156 		} else {
157 			switch (gret) {
158 			case G_SYS:
159 			case G_SELF:
160 				proc_unctrl_psinfo(&psinfo);
161 				(void) printf("%d:\t%.70s\n", (int)pid,
162 				    psinfo.pr_psargs);
163 				if (gret == G_SYS)
164 					(void) printf("  [system process]\n");
165 				else
166 					show_files(NULL);
167 				break;
168 			default:
169 				(void) fprintf(stderr, "%s: %s: %d\n",
170 				    command, Pgrab_error(gret), (int)pid);
171 				retc++;
172 				break;
173 			}
174 		}
175 	}
176 
177 	(void) proc_finistdio();
178 
179 	if (interrupt && retc == 0)
180 		retc++;
181 	return (retc);
182 }
183 
184 /* ARGSUSED */
185 static void
186 intr(int sig)
187 {
188 	interrupt = 1;
189 }
190 
191 /* ------ begin specific code ------ */
192 
193 static void
194 show_files(struct ps_prochandle *Pr)
195 {
196 	DIR *dirp;
197 	struct dirent *dentp;
198 	const char *dev;
199 	char pname[100];
200 	char fname[PATH_MAX];
201 	struct stat64 statb;
202 	struct rlimit rlim;
203 	pid_t pid;
204 	int fd;
205 	char *s;
206 	int ret;
207 
208 	if (pr_getrlimit(Pr, RLIMIT_NOFILE, &rlim) == 0) {
209 		ulong_t nfd = rlim.rlim_cur;
210 		if (nfd == RLIM_INFINITY)
211 			(void) printf(
212 			    "  Current rlimit: unlimited file descriptors\n");
213 		else
214 			(void) printf(
215 			    "  Current rlimit: %lu file descriptors\n", nfd);
216 	}
217 
218 	/* in case we are doing this to ourself */
219 	pid = (Pr == NULL)? getpid() : Pstatus(Pr)->pr_pid;
220 
221 	(void) sprintf(pname, "/proc/%d/fd", (int)pid);
222 	if ((dirp = opendir(pname)) == NULL) {
223 		(void) fprintf(stderr, "%s: cannot open directory %s\n",
224 		    command, pname);
225 		return;
226 	}
227 
228 	/* for each open file --- */
229 	while ((dentp = readdir(dirp)) != NULL && !interrupt) {
230 		char unknown[12];
231 		dev_t rdev;
232 
233 		/* skip '.' and '..' */
234 		if (!isdigit(dentp->d_name[0]))
235 			continue;
236 
237 		fd = atoi(dentp->d_name);
238 		if (pr_fstat64(Pr, fd, &statb) == -1) {
239 			s = unknown;
240 			(void) sprintf(s, "%4d", fd);
241 			perror(s);
242 			continue;
243 		}
244 
245 		rdev = NODEV;
246 		switch (statb.st_mode & S_IFMT) {
247 		case S_IFCHR: s = "S_IFCHR"; rdev = statb.st_rdev; break;
248 		case S_IFBLK: s = "S_IFBLK"; rdev = statb.st_rdev; break;
249 		case S_IFIFO: s = "S_IFIFO"; break;
250 		case S_IFDIR: s = "S_IFDIR"; break;
251 		case S_IFREG: s = "S_IFREG"; break;
252 		case S_IFLNK: s = "S_IFLNK"; break;
253 		case S_IFSOCK: s = "S_IFSOCK"; break;
254 		case S_IFDOOR: s = "S_IFDOOR"; break;
255 		case S_IFPORT: s = "S_IFPORT"; break;
256 		default:
257 			s = unknown;
258 			(void) sprintf(s, "0x%.4x ",
259 			    (int)statb.st_mode & S_IFMT);
260 			break;
261 		}
262 
263 		(void) printf("%4d: %s mode:0%.3o", fd, s,
264 		    (int)statb.st_mode & ~S_IFMT);
265 
266 		if (major(statb.st_dev) != (major_t)NODEV &&
267 		    minor(statb.st_dev) != (minor_t)NODEV)
268 			(void) printf(" dev:%lu,%lu",
269 			    (ulong_t)major(statb.st_dev),
270 			    (ulong_t)minor(statb.st_dev));
271 		else
272 			(void) printf(" dev:0x%.8lX", (long)statb.st_dev);
273 
274 		if ((statb.st_mode & S_IFMT) == S_IFPORT) {
275 			(void) printf(" uid:%d gid:%d",
276 			    (int)statb.st_uid,
277 			    (int)statb.st_gid);
278 			(void) printf(" size:%lld\n",
279 			    (longlong_t)statb.st_size);
280 			continue;
281 		}
282 
283 		(void) printf(" ino:%llu uid:%d gid:%d",
284 		    (u_longlong_t)statb.st_ino,
285 		    (int)statb.st_uid, (int)statb.st_gid);
286 
287 		if (rdev == NODEV)
288 			(void) printf(" size:%lld\n",
289 			    (longlong_t)statb.st_size);
290 		else if (major(rdev) != (major_t)NODEV &&
291 		    minor(rdev) != (minor_t)NODEV)
292 			(void) printf(" rdev:%lu,%lu\n",
293 			    (ulong_t)major(rdev), (ulong_t)minor(rdev));
294 		else
295 			(void) printf(" rdev:0x%.8lX\n", (long)rdev);
296 
297 		if (!nflag) {
298 			dofcntl(Pr, fd,
299 			    (statb.st_mode & (S_IFMT|S_ENFMT|S_IXGRP))
300 			    == (S_IFREG|S_ENFMT),
301 			    (statb.st_mode & S_IFMT) == S_IFDOOR);
302 
303 			if ((statb.st_mode & S_IFMT) == S_IFSOCK)
304 				dosocket(Pr, fd);
305 
306 			(void) sprintf(pname, "/proc/%d/path/%d", (int)pid, fd);
307 
308 			if ((ret = readlink(pname, fname, PATH_MAX - 1)) <= 0)
309 				continue;
310 
311 			fname[ret] = '\0';
312 
313 			if ((statb.st_mode & S_IFMT) == S_IFCHR &&
314 			    (dev = strrchr(fname, ':')) != NULL) {
315 				/*
316 				 * There's no elegant way to determine if a
317 				 * character device supports TLI, so we lame
318 				 * out and just check a hardcoded list of
319 				 * known TLI devices.
320 				 */
321 				int i;
322 				const char *tlidevs[] =
323 				    { "tcp", "tcp6", "udp", "udp6", NULL };
324 
325 				dev++; /* skip past the `:' */
326 				for (i = 0; tlidevs[i] != NULL; i++) {
327 					if (strcmp(dev, tlidevs[i]) == 0) {
328 						dotli(Pr, fd);
329 						break;
330 					}
331 				}
332 			}
333 			(void) printf("      %s\n", fname);
334 		}
335 	}
336 	(void) closedir(dirp);
337 }
338 
339 
340 static int
341 getflock(struct ps_prochandle *Pr, int fd, struct flock *flock_native)
342 {
343 	int ret;
344 #ifdef _LP64
345 	struct flock64_32 flock_target;
346 
347 	if (Pstatus(Pr)->pr_dmodel == PR_MODEL_ILP32) {
348 		copyflock(flock_target, *flock_native);
349 		ret = pr_fcntl(Pr, fd, F_GETLK, &flock_target);
350 		copyflock(*flock_native, flock_target);
351 		return (ret);
352 	}
353 #endif /* _LP64 */
354 	ret = pr_fcntl(Pr, fd, F_GETLK, flock_native);
355 	return (ret);
356 }
357 
358 /* examine open file with fcntl() */
359 static void
360 dofcntl(struct ps_prochandle *Pr, int fd, int mandatory, int isdoor)
361 {
362 	struct flock flock;
363 	int fileflags;
364 	int fdflags;
365 
366 	fileflags = pr_fcntl(Pr, fd, F_GETXFL, 0);
367 	fdflags = pr_fcntl(Pr, fd, F_GETFD, 0);
368 
369 	if (fileflags != -1 || fdflags != -1) {
370 		(void) printf("      ");
371 		if (fileflags != -1)
372 			show_fileflags(fileflags);
373 		if (fdflags != -1 && (fdflags & FD_CLOEXEC))
374 			(void) printf(" FD_CLOEXEC");
375 		if (isdoor)
376 			show_door(Pr, fd);
377 		(void) fputc('\n', stdout);
378 	} else if (isdoor) {
379 		(void) printf("    ");
380 		show_door(Pr, fd);
381 		(void) fputc('\n', stdout);
382 	}
383 
384 	flock.l_type = F_WRLCK;
385 	flock.l_whence = 0;
386 	flock.l_start = 0;
387 	flock.l_len = 0;
388 	flock.l_sysid = 0;
389 	flock.l_pid = 0;
390 	if (getflock(Pr, fd, &flock) != -1) {
391 		if (flock.l_type != F_UNLCK && (flock.l_sysid || flock.l_pid)) {
392 			unsigned long sysid = flock.l_sysid;
393 
394 			(void) printf("      %s %s lock set by",
395 			    mandatory ? "mandatory" : "advisory",
396 			    flock.l_type == F_RDLCK? "read" : "write");
397 			if (sysid)
398 				(void) printf(" system 0x%lX", sysid);
399 			if (flock.l_pid)
400 				(void) printf(" process %d", (int)flock.l_pid);
401 			(void) fputc('\n', stdout);
402 		}
403 	}
404 }
405 
406 #ifdef O_PRIV
407 #define	ALL_O_FLAGS	O_ACCMODE | O_NDELAY | O_NONBLOCK | O_APPEND | \
408 			O_PRIV | O_SYNC | O_DSYNC | O_RSYNC | O_XATTR | \
409 			O_CREAT | O_TRUNC | O_EXCL | O_NOCTTY | O_LARGEFILE
410 #else
411 #define	ALL_O_FLAGS	O_ACCMODE | O_NDELAY | O_NONBLOCK | O_APPEND | \
412 			O_SYNC | O_DSYNC | O_RSYNC | O_XATTR | \
413 			O_CREAT | O_TRUNC | O_EXCL | O_NOCTTY | O_LARGEFILE
414 #endif
415 
416 static void
417 show_fileflags(int flags)
418 {
419 	char buffer[136];
420 	char *str = buffer;
421 
422 	switch (flags & O_ACCMODE) {
423 	case O_RDONLY:
424 		(void) strcpy(str, "O_RDONLY");
425 		break;
426 	case O_WRONLY:
427 		(void) strcpy(str, "O_WRONLY");
428 		break;
429 	case O_RDWR:
430 		(void) strcpy(str, "O_RDWR");
431 		break;
432 	default:
433 		(void) sprintf(str, "0x%x", flags & O_ACCMODE);
434 		break;
435 	}
436 
437 	if (flags & O_NDELAY)
438 		(void) strcat(str, "|O_NDELAY");
439 	if (flags & O_NONBLOCK)
440 		(void) strcat(str, "|O_NONBLOCK");
441 	if (flags & O_APPEND)
442 		(void) strcat(str, "|O_APPEND");
443 #ifdef O_PRIV
444 	if (flags & O_PRIV)
445 		(void) strcat(str, "|O_PRIV");
446 #endif
447 	if (flags & O_SYNC)
448 		(void) strcat(str, "|O_SYNC");
449 	if (flags & O_DSYNC)
450 		(void) strcat(str, "|O_DSYNC");
451 	if (flags & O_RSYNC)
452 		(void) strcat(str, "|O_RSYNC");
453 	if (flags & O_CREAT)
454 		(void) strcat(str, "|O_CREAT");
455 	if (flags & O_TRUNC)
456 		(void) strcat(str, "|O_TRUNC");
457 	if (flags & O_EXCL)
458 		(void) strcat(str, "|O_EXCL");
459 	if (flags & O_NOCTTY)
460 		(void) strcat(str, "|O_NOCTTY");
461 	if (flags & O_LARGEFILE)
462 		(void) strcat(str, "|O_LARGEFILE");
463 	if (flags & O_XATTR)
464 		(void) strcat(str, "|O_XATTR");
465 	if (flags & ~(ALL_O_FLAGS))
466 		(void) sprintf(str + strlen(str), "|0x%x",
467 		    flags & ~(ALL_O_FLAGS));
468 
469 	(void) printf("%s", str);
470 }
471 
472 /* show door info */
473 static void
474 show_door(struct ps_prochandle *Pr, int fd)
475 {
476 	door_info_t door_info;
477 	psinfo_t psinfo;
478 
479 	if (pr_door_info(Pr, fd, &door_info) != 0)
480 		return;
481 
482 	if (proc_get_psinfo(door_info.di_target, &psinfo) != 0)
483 		psinfo.pr_fname[0] = '\0';
484 
485 	(void) printf("  door to ");
486 	if (psinfo.pr_fname[0] != '\0')
487 		(void) printf("%s[%d]", psinfo.pr_fname,
488 		    (int)door_info.di_target);
489 	else
490 		(void) printf("pid %d", (int)door_info.di_target);
491 }
492 
493 /*
494  * Print out the socket address pointed to by `sa'.  `len' is only
495  * needed for AF_UNIX sockets.
496  */
497 static void
498 show_sockaddr(const char *str, struct sockaddr *sa, socklen_t len)
499 {
500 	struct sockaddr_in *so_in = (struct sockaddr_in *)(void *)sa;
501 	struct sockaddr_in6 *so_in6 = (struct sockaddr_in6 *)(void *)sa;
502 	struct sockaddr_un *so_un = (struct sockaddr_un *)sa;
503 	char  abuf[INET6_ADDRSTRLEN];
504 	const char *p;
505 
506 	switch (sa->sa_family) {
507 	default:
508 		return;
509 	case AF_INET:
510 		(void) printf("\t%s: AF_INET %s  port: %u\n", str,
511 		    inet_ntop(AF_INET, &so_in->sin_addr, abuf, sizeof (abuf)),
512 		    ntohs(so_in->sin_port));
513 		return;
514 	case AF_INET6:
515 		(void) printf("\t%s: AF_INET6 %s  port: %u\n", str,
516 		    inet_ntop(AF_INET6, &so_in6->sin6_addr,
517 		    abuf, sizeof (abuf)),
518 		    ntohs(so_in->sin_port));
519 		return;
520 	case AF_UNIX:
521 		if (len >= sizeof (so_un->sun_family)) {
522 			/* Null terminate */
523 			len -= sizeof (so_un->sun_family);
524 			so_un->sun_path[len] = '\0';
525 			(void) printf("\t%s: AF_UNIX %s\n",
526 			    str, so_un->sun_path);
527 		}
528 		return;
529 	case AF_IMPLINK:	p = "AF_IMPLINK";	break;
530 	case AF_PUP:		p = "AF_PUP";		break;
531 	case AF_CHAOS:		p = "AF_CHAOS";		break;
532 	case AF_NS:		p = "AF_NS";		break;
533 	case AF_NBS:		p = "AF_NBS";		break;
534 	case AF_ECMA:		p = "AF_ECMA";		break;
535 	case AF_DATAKIT:	p = "AF_DATAKIT";	break;
536 	case AF_CCITT:		p = "AF_CCITT";		break;
537 	case AF_SNA:		p = "AF_SNA";		break;
538 	case AF_DECnet:		p = "AF_DECnet";	break;
539 	case AF_DLI:		p = "AF_DLI";		break;
540 	case AF_LAT:		p = "AF_LAT";		break;
541 	case AF_HYLINK:		p = "AF_HYLINK";	break;
542 	case AF_APPLETALK:	p = "AF_APPLETALK";	break;
543 	case AF_NIT:		p = "AF_NIT";		break;
544 	case AF_802:		p = "AF_802";		break;
545 	case AF_OSI:		p = "AF_OSI";		break;
546 	case AF_X25:		p = "AF_X25";		break;
547 	case AF_OSINET:		p = "AF_OSINET";	break;
548 	case AF_GOSIP:		p = "AF_GOSIP";		break;
549 	case AF_IPX:		p = "AF_IPX";		break;
550 	case AF_ROUTE:		p = "AF_ROUTE";		break;
551 	case AF_LINK:		p = "AF_LINK";		break;
552 	}
553 
554 	(void) printf("\t%s: %s\n", str, p);
555 }
556 
557 static void
558 show_socktype(uint_t type)
559 {
560 	static const char *types[] = {
561 		NULL, "DGRAM", "STREAM", NULL, "RAW", "RDM", "SEQPACKET"
562 	};
563 
564 	if (type < sizeof (types) / sizeof (*types) && types[type] != NULL)
565 		(void) printf("\tSOCK_%s\n", types[type]);
566 	else
567 		(void) printf("\tunknown socket type %u\n", type);
568 }
569 
570 #define	BUFSIZE	200
571 static void
572 show_sockopts(struct ps_prochandle *Pr, int fd)
573 {
574 	int val, vlen;
575 	char buf[BUFSIZE];
576 	char buf1[32];
577 	char ipaddr[INET_ADDRSTRLEN];
578 	int i;
579 	in_addr_t nexthop_val;
580 	struct boolopt {
581 		int		level;
582 		int		opt;
583 		const char	*name;
584 	};
585 	static struct boolopt boolopts[] = {
586 	    { SOL_SOCKET, SO_DEBUG,		"SO_DEBUG,"	},
587 	    { SOL_SOCKET, SO_REUSEADDR,		"SO_REUSEADDR,"	},
588 	    { SOL_SOCKET, SO_KEEPALIVE,		"SO_KEEPALIVE,"	},
589 	    { SOL_SOCKET, SO_DONTROUTE,		"SO_DONTROUTE,"	},
590 	    { SOL_SOCKET, SO_BROADCAST,		"SO_BROADCAST,"	},
591 	    { SOL_SOCKET, SO_OOBINLINE,		"SO_OOBINLINE,"	},
592 	    { SOL_SOCKET, SO_DGRAM_ERRIND,	"SO_DGRAM_ERRIND,"},
593 	    { SOL_SOCKET, SO_ALLZONES,		"SO_ALLZONES,"	},
594 	    { SOL_SOCKET, SO_EXCLBIND,		"SO_EXCLBIND," },
595 	    { IPPROTO_UDP, UDP_NAT_T_ENDPOINT,	"UDP_NAT_T_ENDPOINT," },
596 	};
597 	struct linger l;
598 
599 	buf[0] = '!';		/* sentinel value, never printed */
600 	buf[1] = '\0';
601 
602 	for (i = 0; i < sizeof (boolopts) / sizeof (boolopts[0]); i++) {
603 		vlen = sizeof (val);
604 		if (pr_getsockopt(Pr, fd, boolopts[i].level, boolopts[i].opt,
605 		    &val, &vlen) == 0 && val != 0)
606 			(void) strlcat(buf, boolopts[i].name, sizeof (buf));
607 	}
608 
609 	vlen = sizeof (l);
610 	if (pr_getsockopt(Pr, fd, SOL_SOCKET, SO_LINGER, &l, &vlen) == 0 &&
611 	    l.l_onoff != 0) {
612 		(void) snprintf(buf1, sizeof (buf1), "SO_LINGER(%d),",
613 		    l.l_linger);
614 		(void) strlcat(buf, buf1, sizeof (buf));
615 	}
616 
617 	vlen = sizeof (val);
618 	if (pr_getsockopt(Pr, fd, SOL_SOCKET, SO_SNDBUF, &val, &vlen) == 0) {
619 		(void) snprintf(buf1, sizeof (buf1), "SO_SNDBUF(%d),", val);
620 		(void) strlcat(buf, buf1, sizeof (buf));
621 	}
622 	vlen = sizeof (val);
623 	if (pr_getsockopt(Pr, fd, SOL_SOCKET, SO_RCVBUF, &val, &vlen) == 0) {
624 		(void) snprintf(buf1, sizeof (buf1), "SO_RCVBUF(%d),", val);
625 		(void) strlcat(buf, buf1, sizeof (buf));
626 	}
627 	vlen = sizeof (nexthop_val);
628 	if (pr_getsockopt(Pr, fd, IPPROTO_IP, IP_NEXTHOP, &nexthop_val,
629 	    &vlen) == 0) {
630 		if (vlen > 0) {
631 			(void) inet_ntop(AF_INET, (void *) &nexthop_val,
632 			    ipaddr, sizeof (ipaddr));
633 			(void) snprintf(buf1, sizeof (buf1), "IP_NEXTHOP(%s),",
634 			    ipaddr);
635 			(void) strlcat(buf, buf1, sizeof (buf));
636 		}
637 	}
638 
639 	buf[strlen(buf) - 1] = '\0'; /* overwrites sentinel if no options */
640 	if (buf[1] != '\0')
641 		(void) printf("\t%s\n", buf+1);
642 }
643 
644 /* the file is a socket */
645 static void
646 dosocket(struct ps_prochandle *Pr, int fd)
647 {
648 	/* A buffer large enough for PATH_MAX size AF_UNIX address */
649 	long buf[(sizeof (short) + PATH_MAX + sizeof (long) - 1)
650 	    / sizeof (long)];
651 	struct sockaddr *sa = (struct sockaddr *)buf;
652 	socklen_t len;
653 	int type, tlen;
654 
655 	tlen = sizeof (type);
656 	if (pr_getsockopt(Pr, fd, SOL_SOCKET, SO_TYPE, &type, &tlen) == 0)
657 		show_socktype((uint_t)type);
658 
659 	show_sockopts(Pr, fd);
660 
661 	len = sizeof (buf);
662 	if (pr_getsockname(Pr, fd, sa, &len) == 0)
663 		show_sockaddr("sockname", sa, len);
664 
665 	len = sizeof (buf);
666 	if (pr_getpeername(Pr, fd, sa, &len) == 0)
667 		show_sockaddr("peername", sa, len);
668 }
669 
670 /* the file is a TLI endpoint */
671 static void
672 dotli(struct ps_prochandle *Pr, int fd)
673 {
674 	struct strcmd strcmd;
675 
676 	strcmd.sc_len = STRCMDBUFSIZE;
677 	strcmd.sc_timeout = 5;
678 
679 	strcmd.sc_cmd = TI_GETMYNAME;
680 	if (pr_ioctl(Pr, fd, _I_CMD, &strcmd, sizeof (strcmd)) == 0)
681 		show_sockaddr("sockname", (void *)&strcmd.sc_buf, 0);
682 
683 	strcmd.sc_cmd = TI_GETPEERNAME;
684 	if (pr_ioctl(Pr, fd, _I_CMD, &strcmd, sizeof (strcmd)) == 0)
685 		show_sockaddr("peername", (void *)&strcmd.sc_buf, 0);
686 }
687