1/*
2 * Copyright (c) 1991, 1992 Paul Kranenburg <pk@cs.few.eur.nl>
3 * Copyright (c) 1993 Branko Lankester <branko@hacktic.nl>
4 * Copyright (c) 1993, 1994, 1995, 1996 Rick Sladkey <jrs@world.std.com>
5 * Copyright (c) 1996-1999 Wichert Akkerman <wichert@cistron.nl>
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in the
15 *    documentation and/or other materials provided with the distribution.
16 * 3. The name of the author may not be used to endorse or promote products
17 *    derived from this software without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
20 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
21 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
22 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
24 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
28 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 *
30 *	$Id$
31 */
32
33#include "defs.h"
34
35#include <fcntl.h>
36#if HAVE_SYS_UIO_H
37#include <sys/uio.h>
38#endif
39
40#ifdef HAVE_LONG_LONG_OFF_T
41/*
42 * Hacks for systems that have a long long off_t
43 */
44
45#define sys_pread64	sys_pread
46#define sys_pwrite64	sys_pwrite
47#endif
48
49int
50sys_read(struct tcb *tcp)
51{
52	if (entering(tcp)) {
53		printfd(tcp, tcp->u_arg[0]);
54		tprintf(", ");
55	} else {
56		if (syserror(tcp))
57			tprintf("%#lx", tcp->u_arg[1]);
58		else
59			printstr(tcp, tcp->u_arg[1], tcp->u_rval);
60		tprintf(", %lu", tcp->u_arg[2]);
61	}
62	return 0;
63}
64
65int
66sys_write(struct tcb *tcp)
67{
68	if (entering(tcp)) {
69		printfd(tcp, tcp->u_arg[0]);
70		tprintf(", ");
71		printstr(tcp, tcp->u_arg[1], tcp->u_arg[2]);
72		tprintf(", %lu", tcp->u_arg[2]);
73	}
74	return 0;
75}
76
77#if HAVE_SYS_UIO_H
78void
79tprint_iov(tcp, len, addr)
80struct tcb * tcp;
81unsigned long len;
82unsigned long addr;
83{
84#if defined(LINUX) && SUPPORTED_PERSONALITIES > 1
85	union {
86		struct { u_int32_t base; u_int32_t len; } iov32;
87		struct { u_int64_t base; u_int64_t len; } iov64;
88	} iov;
89#define sizeof_iov \
90  (personality_wordsize[current_personality] == 4 \
91   ? sizeof(iov.iov32) : sizeof(iov.iov64))
92#define iov_iov_base \
93  (personality_wordsize[current_personality] == 4 \
94   ? (u_int64_t) iov.iov32.base : iov.iov64.base)
95#define iov_iov_len \
96  (personality_wordsize[current_personality] == 4 \
97   ? (u_int64_t) iov.iov32.len : iov.iov64.len)
98#else
99	struct iovec iov;
100#define sizeof_iov sizeof(iov)
101#define iov_iov_base iov.iov_base
102#define iov_iov_len iov.iov_len
103#endif
104	unsigned long size, cur, end, abbrev_end;
105	int failed = 0;
106
107	if (!len) {
108		tprintf("[]");
109		return;
110	}
111	size = len * sizeof_iov;
112	end = addr + size;
113	if (!verbose(tcp) || size / sizeof_iov != len || end < addr) {
114		tprintf("%#lx", addr);
115		return;
116	}
117	if (abbrev(tcp)) {
118		abbrev_end = addr + max_strlen * sizeof_iov;
119		if (abbrev_end < addr)
120			abbrev_end = end;
121	} else {
122		abbrev_end = end;
123	}
124	tprintf("[");
125	for (cur = addr; cur < end; cur += sizeof_iov) {
126		if (cur > addr)
127			tprintf(", ");
128		if (cur >= abbrev_end) {
129			tprintf("...");
130			break;
131		}
132		if (umoven(tcp, cur, sizeof_iov, (char *) &iov) < 0) {
133			tprintf("?");
134			failed = 1;
135			break;
136		}
137		tprintf("{");
138		printstr(tcp, (long) iov_iov_base, iov_iov_len);
139		tprintf(", %lu}", (unsigned long)iov_iov_len);
140	}
141	tprintf("]");
142	if (failed)
143		tprintf(" %#lx", addr);
144#undef sizeof_iov
145#undef iov_iov_base
146#undef iov_iov_len
147}
148
149int
150sys_readv(struct tcb *tcp)
151{
152	if (entering(tcp)) {
153		printfd(tcp, tcp->u_arg[0]);
154		tprintf(", ");
155	} else {
156		if (syserror(tcp)) {
157			tprintf("%#lx, %lu",
158					tcp->u_arg[1], tcp->u_arg[2]);
159			return 0;
160		}
161		tprint_iov(tcp, tcp->u_arg[2], tcp->u_arg[1]);
162		tprintf(", %lu", tcp->u_arg[2]);
163	}
164	return 0;
165}
166
167int
168sys_writev(struct tcb *tcp)
169{
170	if (entering(tcp)) {
171		printfd(tcp, tcp->u_arg[0]);
172		tprintf(", ");
173		tprint_iov(tcp, tcp->u_arg[2], tcp->u_arg[1]);
174		tprintf(", %lu", tcp->u_arg[2]);
175	}
176	return 0;
177}
178#endif
179
180#if defined(SVR4)
181
182int
183sys_pread(struct tcb *tcp)
184{
185	if (entering(tcp)) {
186		printfd(tcp, tcp->u_arg[0]);
187		tprintf(", ");
188	} else {
189		if (syserror(tcp))
190			tprintf("%#lx", tcp->u_arg[1]);
191		else
192			printstr(tcp, tcp->u_arg[1], tcp->u_rval);
193#if UNIXWARE
194		/* off_t is signed int */
195		tprintf(", %lu, %ld", tcp->u_arg[2], tcp->u_arg[3]);
196#else
197		tprintf(", %lu, %llu", tcp->u_arg[2],
198			LONG_LONG(tcp->u_arg[3], tcp->u_arg[4]));
199#endif
200	}
201	return 0;
202}
203
204int
205sys_pwrite(struct tcb *tcp)
206{
207	if (entering(tcp)) {
208		printfd(tcp, tcp->u_arg[0]);
209		tprintf(", ");
210		printstr(tcp, tcp->u_arg[1], tcp->u_arg[2]);
211#if UNIXWARE
212		/* off_t is signed int */
213		tprintf(", %lu, %ld", tcp->u_arg[2], tcp->u_arg[3]);
214#else
215		tprintf(", %lu, %llu", tcp->u_arg[2],
216			LONG_LONG(tcp->u_arg[3], tcp->u_arg[4]));
217#endif
218	}
219	return 0;
220}
221#endif /* SVR4 */
222
223#ifdef FREEBSD
224#include <sys/types.h>
225#include <sys/socket.h>
226
227int
228sys_sendfile(struct tcb *tcp)
229{
230	if (entering(tcp)) {
231		printfd(tcp, tcp->u_arg[0]);
232		tprintf(", ");
233		printfd(tcp, tcp->u_arg[1]);
234		tprintf(", %llu, %lu",
235			LONG_LONG(tcp->u_arg[2], tcp->u_arg[3]),
236			tcp->u_arg[4]);
237	} else {
238		off_t offset;
239
240		if (!tcp->u_arg[5])
241			tprintf(", NULL");
242		else {
243			struct sf_hdtr hdtr;
244
245			if (umove(tcp, tcp->u_arg[5], &hdtr) < 0)
246				tprintf(", %#lx", tcp->u_arg[5]);
247			else {
248				tprintf(", { ");
249				tprint_iov(tcp, hdtr.hdr_cnt, hdtr.headers);
250				tprintf(", %u, ", hdtr.hdr_cnt);
251				tprint_iov(tcp, hdtr.trl_cnt, hdtr.trailers);
252				tprintf(", %u }", hdtr.hdr_cnt);
253			}
254		}
255		if (!tcp->u_arg[6])
256			tprintf(", NULL");
257		else if (umove(tcp, tcp->u_arg[6], &offset) < 0)
258			tprintf(", %#lx", tcp->u_arg[6]);
259		else
260			tprintf(", [%llu]", offset);
261		tprintf(", %lu", tcp->u_arg[7]);
262	}
263	return 0;
264}
265#endif /* FREEBSD */
266
267#ifdef LINUX
268
269/* The SH4 ABI does allow long longs in odd-numbered registers, but
270   does not allow them to be split between registers and memory - and
271   there are only four argument registers for normal functions.  As a
272   result pread takes an extra padding argument before the offset.  This
273   was changed late in the 2.4 series (around 2.4.20).  */
274#if defined(SH)
275#define PREAD_OFFSET_ARG 4
276#else
277#define PREAD_OFFSET_ARG 3
278#endif
279
280int
281sys_pread(struct tcb *tcp)
282{
283	if (entering(tcp)) {
284		printfd(tcp, tcp->u_arg[0]);
285		tprintf(", ");
286	} else {
287		if (syserror(tcp))
288			tprintf("%#lx", tcp->u_arg[1]);
289		else
290			printstr(tcp, tcp->u_arg[1], tcp->u_rval);
291		tprintf(", %lu, ", tcp->u_arg[2]);
292		printllval(tcp, "%llu", PREAD_OFFSET_ARG);
293	}
294	return 0;
295}
296
297int
298sys_pwrite(struct tcb *tcp)
299{
300	if (entering(tcp)) {
301		printfd(tcp, tcp->u_arg[0]);
302		tprintf(", ");
303		printstr(tcp, tcp->u_arg[1], tcp->u_arg[2]);
304		tprintf(", %lu, ", tcp->u_arg[2]);
305		printllval(tcp, "%llu", PREAD_OFFSET_ARG);
306	}
307	return 0;
308}
309
310int
311sys_sendfile(struct tcb *tcp)
312{
313	if (entering(tcp)) {
314		off_t offset;
315
316		printfd(tcp, tcp->u_arg[0]);
317		tprintf(", ");
318		printfd(tcp, tcp->u_arg[1]);
319		tprintf(", ");
320		if (!tcp->u_arg[2])
321			tprintf("NULL");
322		else if (umove(tcp, tcp->u_arg[2], &offset) < 0)
323			tprintf("%#lx", tcp->u_arg[2]);
324		else
325			tprintf("[%lu]", offset);
326		tprintf(", %lu", tcp->u_arg[3]);
327	}
328	return 0;
329}
330
331int
332sys_sendfile64(struct tcb *tcp)
333{
334	if (entering(tcp)) {
335		loff_t offset;
336
337		printfd(tcp, tcp->u_arg[0]);
338		tprintf(", ");
339		printfd(tcp, tcp->u_arg[1]);
340		tprintf(", ");
341		if (!tcp->u_arg[2])
342			tprintf("NULL");
343		else if (umove(tcp, tcp->u_arg[2], &offset) < 0)
344			tprintf("%#lx", tcp->u_arg[2]);
345		else
346			tprintf("[%llu]", (unsigned long long int) offset);
347		tprintf(", %lu", tcp->u_arg[3]);
348	}
349	return 0;
350}
351
352#endif /* LINUX */
353
354#if _LFS64_LARGEFILE || HAVE_LONG_LONG_OFF_T
355int
356sys_pread64(struct tcb *tcp)
357{
358	if (entering(tcp)) {
359		printfd(tcp, tcp->u_arg[0]);
360		tprintf(", ");
361	} else {
362		if (syserror(tcp))
363			tprintf("%#lx", tcp->u_arg[1]);
364		else
365			printstr(tcp, tcp->u_arg[1], tcp->u_rval);
366		tprintf(", %lu, ", tcp->u_arg[2]);
367		printllval(tcp, "%#llx", 3);
368	}
369	return 0;
370}
371
372int
373sys_pwrite64(struct tcb *tcp)
374{
375	if (entering(tcp)) {
376		printfd(tcp, tcp->u_arg[0]);
377		tprintf(", ");
378		printstr(tcp, tcp->u_arg[1], tcp->u_arg[2]);
379		tprintf(", %lu, ", tcp->u_arg[2]);
380		printllval(tcp, "%#llx", 3);
381	}
382	return 0;
383}
384#endif
385
386int
387sys_ioctl(struct tcb *tcp)
388{
389	const struct ioctlent *iop;
390
391	if (entering(tcp)) {
392		printfd(tcp, tcp->u_arg[0]);
393		tprintf(", ");
394		iop = ioctl_lookup(tcp->u_arg[1]);
395		if (iop) {
396			tprintf("%s", iop->symbol);
397			while ((iop = ioctl_next_match(iop)))
398				tprintf(" or %s", iop->symbol);
399		} else
400			tprintf("%#lx", tcp->u_arg[1]);
401		ioctl_decode(tcp, tcp->u_arg[1], tcp->u_arg[2]);
402	}
403	else {
404		int ret;
405		if (!(ret = ioctl_decode(tcp, tcp->u_arg[1], tcp->u_arg[2])))
406			tprintf(", %#lx", tcp->u_arg[2]);
407		else
408			return ret - 1;
409	}
410	return 0;
411}
412