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
49 int
sys_read(struct tcb * tcp)50 sys_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
65 int
sys_write(struct tcb * tcp)66 sys_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
78 void
tprint_iov(tcp,len,addr)79 tprint_iov(tcp, len, addr)
80 struct tcb * tcp;
81 unsigned long len;
82 unsigned 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
149 int
sys_readv(struct tcb * tcp)150 sys_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
167 int
sys_writev(struct tcb * tcp)168 sys_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
182 int
sys_pread(struct tcb * tcp)183 sys_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
204 int
sys_pwrite(struct tcb * tcp)205 sys_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
227 int
sys_sendfile(struct tcb * tcp)228 sys_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
280 int
sys_pread(struct tcb * tcp)281 sys_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
297 int
sys_pwrite(struct tcb * tcp)298 sys_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
310 int
sys_sendfile(struct tcb * tcp)311 sys_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
331 int
sys_sendfile64(struct tcb * tcp)332 sys_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
355 int
sys_pread64(struct tcb * tcp)356 sys_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
372 int
sys_pwrite64(struct tcb * tcp)373 sys_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
386 int
sys_ioctl(struct tcb * tcp)387 sys_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