io.c revision c6cc577089355345b5d6e6e70c8f0a8be55d5346 
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(tcp)
51struct tcb *tcp;
52{
53	if (entering(tcp)) {
54		tprintf("%ld, ", tcp->u_arg[0]);
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(tcp)
67struct tcb *tcp;
68{
69	if (entering(tcp)) {
70		tprintf("%ld, ", tcp->u_arg[0]);
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;
81int len;
82long addr;
83{
84	struct iovec *iov;
85	int i;
86
87
88	if (!len) {
89		tprintf("[]");
90		return;
91	}
92
93	if ((iov = (struct iovec *) malloc(len * sizeof *iov)) == NULL) {
94		fprintf(stderr, "No memory");
95		return;
96	}
97	if (umoven(tcp, addr,
98		   len * sizeof *iov, (char *) iov) < 0) {
99		tprintf("%#lx", tcp->u_arg[1]);
100	} else {
101		tprintf("[");
102		for (i = 0; i < len; i++) {
103			if (i)
104				tprintf(", ");
105			tprintf("{");
106			printstr(tcp, (long) iov[i].iov_base,
107				iov[i].iov_len);
108			tprintf(", %lu}", (unsigned long)iov[i].iov_len);
109		}
110		tprintf("]");
111	}
112	free((char *) iov);
113}
114
115int
116sys_readv(tcp)
117struct tcb *tcp;
118{
119	if (entering(tcp)) {
120		tprintf("%ld, ", tcp->u_arg[0]);
121	} else {
122		if (syserror(tcp)) {
123			tprintf("%#lx, %lu",
124					tcp->u_arg[1], tcp->u_arg[2]);
125			return 0;
126		}
127		tprint_iov(tcp, tcp->u_arg[2], tcp->u_arg[1]);
128		tprintf(", %lu", tcp->u_arg[2]);
129	}
130	return 0;
131}
132
133int
134sys_writev(tcp)
135struct tcb *tcp;
136{
137	if (entering(tcp)) {
138		tprintf("%ld, ", tcp->u_arg[0]);
139		tprint_iov(tcp, tcp->u_arg[2], tcp->u_arg[1]);
140		tprintf(", %lu", tcp->u_arg[2]);
141	}
142	return 0;
143}
144#endif
145
146#if defined(SVR4)
147
148int
149sys_pread(tcp)
150struct tcb *tcp;
151{
152	if (entering(tcp)) {
153		tprintf("%ld, ", tcp->u_arg[0]);
154	} else {
155		if (syserror(tcp))
156			tprintf("%#lx", tcp->u_arg[1]);
157		else
158			printstr(tcp, tcp->u_arg[1], tcp->u_rval);
159#if UNIXWARE
160		/* off_t is signed int */
161		tprintf(", %lu, %ld", tcp->u_arg[2], tcp->u_arg[3]);
162#else
163		tprintf(", %lu, %llu", tcp->u_arg[2],
164				(((unsigned long long) tcp->u_arg[4]) << 32
165				 | (unsigned) tcp->u_arg[3]));
166#endif
167	}
168	return 0;
169}
170
171int
172sys_pwrite(tcp)
173struct tcb *tcp;
174{
175	if (entering(tcp)) {
176		tprintf("%ld, ", tcp->u_arg[0]);
177		printstr(tcp, tcp->u_arg[1], tcp->u_arg[2]);
178#if UNIXWARE
179		/* off_t is signed int */
180		tprintf(", %lu, %ld", tcp->u_arg[2], tcp->u_arg[3]);
181#else
182		tprintf(", %lu, %llu", tcp->u_arg[2],
183				(((unsigned long long) tcp->u_arg[4]) << 32
184				 | (unsigned) tcp->u_arg[3]));
185#endif
186	}
187	return 0;
188}
189#endif /* SVR4 */
190
191#ifdef FREEBSD
192#include <sys/types.h>
193#include <sys/socket.h>
194
195int
196sys_sendfile(tcp)
197struct tcb *tcp;
198{
199	if (entering(tcp)) {
200		tprintf("%ld, %ld, %llu, %lu", tcp->u_arg[0], tcp->u_arg[1],
201			(((unsigned long long) tcp->u_arg[3]) << 32 |
202			 (unsigned) tcp->u_arg[2]), tcp->u_arg[4]);
203	} else {
204		off_t offset;
205
206		if (!tcp->u_arg[5])
207			tprintf(", NULL");
208		else {
209			struct sf_hdtr hdtr;
210
211			if (umove(tcp, tcp->u_arg[5], &hdtr) < 0)
212				tprintf(", %#lx", tcp->u_arg[5]);
213			else {
214				tprintf(", { ");
215				tprint_iov(tcp, hdtr.hdr_cnt, hdtr.headers);
216				tprintf(", %u, ", hdtr.hdr_cnt);
217				tprint_iov(tcp, hdtr.trl_cnt, hdtr.trailers);
218				tprintf(", %u }", hdtr.hdr_cnt);
219			}
220		}
221		if (!tcp->u_arg[6])
222			tprintf(", NULL");
223		else if (umove(tcp, tcp->u_arg[6], &offset) < 0)
224			tprintf(", %#lx", tcp->u_arg[6]);
225		else
226			tprintf(", [%llu]", offset);
227		tprintf(", %lu", tcp->u_arg[7]);
228	}
229	return 0;
230}
231#endif /* FREEBSD */
232
233#ifdef LINUX
234int
235sys_pread(tcp)
236struct tcb *tcp;
237{
238	if (entering(tcp)) {
239		tprintf("%ld, ", tcp->u_arg[0]);
240	} else {
241		if (syserror(tcp))
242			tprintf("%#lx", tcp->u_arg[1]);
243		else
244			printstr(tcp, tcp->u_arg[1], tcp->u_rval);
245		ALIGN64 (tcp, 3); /* PowerPC alignment restriction */
246		tprintf(", %lu, %llu", tcp->u_arg[2],
247			*(unsigned long long *)&tcp->u_arg[3]);
248	}
249	return 0;
250}
251
252int
253sys_pwrite(tcp)
254struct tcb *tcp;
255{
256	if (entering(tcp)) {
257		tprintf("%ld, ", tcp->u_arg[0]);
258		printstr(tcp, tcp->u_arg[1], tcp->u_arg[2]);
259		ALIGN64 (tcp, 3); /* PowerPC alignment restriction */
260		tprintf(", %lu, %llu", tcp->u_arg[2],
261			*(unsigned long long *)&tcp->u_arg[3]);
262	}
263	return 0;
264}
265
266int
267sys_sendfile(tcp)
268struct tcb *tcp;
269{
270	if (entering(tcp)) {
271		off_t offset;
272
273		tprintf("%ld, %ld, ", tcp->u_arg[0], tcp->u_arg[1]);
274		if (!tcp->u_arg[2])
275			tprintf("NULL");
276		else if (umove(tcp, tcp->u_arg[2], &offset) < 0)
277			tprintf("%#lx", tcp->u_arg[2]);
278		else
279			tprintf("[%lu]", offset);
280		tprintf(", %lu", tcp->u_arg[3]);
281	}
282	return 0;
283}
284
285int
286sys_sendfile64(tcp)
287struct tcb *tcp;
288{
289	if (entering(tcp)) {
290		loff_t offset;
291
292		tprintf("%ld, %ld, ", tcp->u_arg[0], tcp->u_arg[1]);
293		if (!tcp->u_arg[2])
294			tprintf("NULL");
295		else if (umove(tcp, tcp->u_arg[2], &offset) < 0)
296			tprintf("%#lx", tcp->u_arg[2]);
297		else
298			tprintf("[%llu]", (unsigned long long int) offset);
299		tprintf(", %lu", tcp->u_arg[3]);
300	}
301	return 0;
302}
303
304#endif /* LINUX */
305
306#if _LFS64_LARGEFILE || HAVE_LONG_LONG_OFF_T
307int
308sys_pread64(tcp)
309struct tcb *tcp;
310{
311	if (entering(tcp)) {
312		tprintf("%ld, ", tcp->u_arg[0]);
313	} else {
314		ALIGN64 (tcp, 3);
315		if (syserror(tcp))
316			tprintf("%#lx", tcp->u_arg[1]);
317		else
318			printstr(tcp, tcp->u_arg[1], tcp->u_rval);
319		tprintf(", %lu, %#llx", tcp->u_arg[2],
320			LONG_LONG(tcp->u_arg[3], tcp->u_arg[4]));
321	}
322	return 0;
323}
324
325int
326sys_pwrite64(tcp)
327struct tcb *tcp;
328{
329	if (entering(tcp)) {
330		ALIGN64 (tcp, 3);
331		tprintf("%ld, ", tcp->u_arg[0]);
332		printstr(tcp, tcp->u_arg[1], tcp->u_arg[2]);
333		tprintf(", %lu, %#llx", tcp->u_arg[2],
334			LONG_LONG(tcp->u_arg[3], tcp->u_arg[4]));
335	}
336	return 0;
337}
338#endif
339
340int
341sys_ioctl(tcp)
342struct tcb *tcp;
343{
344	char *symbol;
345
346	if (entering(tcp)) {
347		tprintf("%ld, ", tcp->u_arg[0]);
348		symbol = ioctl_lookup(tcp->u_arg[1]);
349		if (symbol)
350			tprintf("%s", symbol);
351		else
352			tprintf("%#lx", tcp->u_arg[1]);
353		ioctl_decode(tcp, tcp->u_arg[1], tcp->u_arg[2]);
354	}
355	else {
356		int ret;
357		if (!(ret = ioctl_decode(tcp, tcp->u_arg[1], tcp->u_arg[2])))
358			tprintf(", %#lx", tcp->u_arg[2]);
359		else
360			return ret - 1;
361	}
362	return 0;
363}
364