2 * Copyright 1997 Sean Eric Fagan
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 * 3. All advertising materials mentioning features or use of this software
13 * must display the following acknowledgement:
14 * This product includes software developed by Sean Eric Fagan
15 * 4. Neither the name of the author may be used to endorse or promote
16 * products derived from this software without specific prior written
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 static const char rcsid[] =
38 * This file has routines used to print out system calls and their
42 #include <sys/types.h>
44 #include <sys/procctl.h>
45 #include <sys/ptrace.h>
46 #include <sys/socket.h>
50 #include <netinet/in.h>
51 #include <arpa/inet.h>
52 #include <sys/ioccom.h>
53 #include <machine/atomic.h>
56 #include <sys/event.h>
58 #include <sys/resource.h>
77 /* 64-bit alignment on 32-bit platforms. */
84 /* Number of slots needed for a 64-bit argument. */
92 * This should probably be in its own file, sorted alphabetically.
94 static struct syscall syscalls[] = {
95 { .name = "fcntl", .ret_type = 1, .nargs = 3,
96 .args = { { Int, 0 } , { Fcntl, 1 }, { Fcntlflag | OUT, 2 } } },
97 { .name = "fork", .ret_type = 1, .nargs = 0 },
98 { .name = "vfork", .ret_type = 1, .nargs = 0 },
99 { .name = "rfork", .ret_type = 1, .nargs = 1,
100 .args = { { Rforkflags, 0 } } },
101 { .name = "getegid", .ret_type = 1, .nargs = 0 },
102 { .name = "geteuid", .ret_type = 1, .nargs = 0 },
103 { .name = "getgid", .ret_type = 1, .nargs = 0 },
104 { .name = "getpid", .ret_type = 1, .nargs = 0 },
105 { .name = "getpgid", .ret_type = 1, .nargs = 1,
106 .args = { { Int, 0 } } },
107 { .name = "getpgrp", .ret_type = 1, .nargs = 0 },
108 { .name = "getppid", .ret_type = 1, .nargs = 0 },
109 { .name = "getsid", .ret_type = 1, .nargs = 1,
110 .args = { { Int, 0 } } },
111 { .name = "getuid", .ret_type = 1, .nargs = 0 },
112 { .name = "readlink", .ret_type = 1, .nargs = 3,
113 .args = { { Name, 0 } , { Readlinkres | OUT, 1 }, { Int, 2 } } },
114 { .name = "lseek", .ret_type = 2, .nargs = 3,
115 .args = { { Int, 0 }, { Quad, 1 + QUAD_ALIGN }, { Whence, 1 + QUAD_SLOTS + QUAD_ALIGN } } },
116 { .name = "linux_lseek", .ret_type = 2, .nargs = 3,
117 .args = { { Int, 0 }, { Int, 1 }, { Whence, 2 } } },
118 { .name = "mmap", .ret_type = 2, .nargs = 6,
119 .args = { { Ptr, 0 }, { Int, 1 }, { Mprot, 2 }, { Mmapflags, 3 }, { Int, 4 }, { Quad, 5 + QUAD_ALIGN } } },
120 { .name = "mprotect", .ret_type = 1, .nargs = 3,
121 .args = { { Ptr, 0 }, { Int, 1 }, { Mprot, 2 } } },
122 { .name = "open", .ret_type = 1, .nargs = 3,
123 .args = { { Name | IN, 0 } , { Open, 1 }, { Octal, 2 } } },
124 { .name = "mkdir", .ret_type = 1, .nargs = 2,
125 .args = { { Name, 0 } , { Octal, 1 } } },
126 { .name = "linux_open", .ret_type = 1, .nargs = 3,
127 .args = { { Name, 0 }, { Hex, 1 }, { Octal, 2 } } },
128 { .name = "close", .ret_type = 1, .nargs = 1,
129 .args = { { Int, 0 } } },
130 { .name = "link", .ret_type = 0, .nargs = 2,
131 .args = { { Name, 0 }, { Name, 1 } } },
132 { .name = "unlink", .ret_type = 0, .nargs = 1,
133 .args = { { Name, 0 } } },
134 { .name = "chdir", .ret_type = 0, .nargs = 1,
135 .args = { { Name, 0 } } },
136 { .name = "chroot", .ret_type = 0, .nargs = 1,
137 .args = { { Name, 0 } } },
138 { .name = "mknod", .ret_type = 0, .nargs = 3,
139 .args = { { Name, 0 }, { Octal, 1 }, { Int, 3 } } },
140 { .name = "chmod", .ret_type = 0, .nargs = 2,
141 .args = { { Name, 0 }, { Octal, 1 } } },
142 { .name = "chown", .ret_type = 0, .nargs = 3,
143 .args = { { Name, 0 }, { Int, 1 }, { Int, 2 } } },
144 { .name = "mount", .ret_type = 0, .nargs = 4,
145 .args = { { Name, 0 }, { Name, 1 }, { Int, 2 }, { Ptr, 3 } } },
146 { .name = "umount", .ret_type = 0, .nargs = 2,
147 .args = { { Name, 0 }, { Int, 2 } } },
148 { .name = "fstat", .ret_type = 1, .nargs = 2,
149 .args = { { Int, 0 }, { Stat | OUT , 1 } } },
150 { .name = "stat", .ret_type = 1, .nargs = 2,
151 .args = { { Name | IN, 0 }, { Stat | OUT, 1 } } },
152 { .name = "lstat", .ret_type = 1, .nargs = 2,
153 .args = { { Name | IN, 0 }, { Stat | OUT, 1 } } },
154 { .name = "linux_newstat", .ret_type = 1, .nargs = 2,
155 .args = { { Name | IN, 0 }, { Ptr | OUT, 1 } } },
156 { .name = "linux_newfstat", .ret_type = 1, .nargs = 2,
157 .args = { { Int, 0 }, { Ptr | OUT, 1 } } },
158 { .name = "write", .ret_type = 1, .nargs = 3,
159 .args = { { Int, 0 }, { BinString | IN, 1 }, { Int, 2 } } },
160 { .name = "ioctl", .ret_type = 1, .nargs = 3,
161 .args = { { Int, 0 }, { Ioctl, 1 }, { Hex, 2 } } },
162 { .name = "break", .ret_type = 1, .nargs = 1,
163 .args = { { Ptr, 0 } } },
164 { .name = "exit", .ret_type = 0, .nargs = 1,
165 .args = { { Hex, 0 } } },
166 { .name = "access", .ret_type = 1, .nargs = 2,
167 .args = { { Name | IN, 0 }, { Int, 1 } } },
168 { .name = "sigaction", .ret_type = 1, .nargs = 3,
169 .args = { { Signal, 0 }, { Sigaction | IN, 1 }, { Sigaction | OUT, 2 } } },
170 { .name = "accept", .ret_type = 1, .nargs = 3,
171 .args = { { Int, 0 }, { Sockaddr | OUT, 1 }, { Ptr | OUT, 2 } } },
172 { .name = "bind", .ret_type = 1, .nargs = 3,
173 .args = { { Int, 0 }, { Sockaddr | IN, 1 }, { Int, 2 } } },
174 { .name = "connect", .ret_type = 1, .nargs = 3,
175 .args = { { Int, 0 }, { Sockaddr | IN, 1 }, { Int, 2 } } },
176 { .name = "getpeername", .ret_type = 1, .nargs = 3,
177 .args = { { Int, 0 }, { Sockaddr | OUT, 1 }, { Ptr | OUT, 2 } } },
178 { .name = "getsockname", .ret_type = 1, .nargs = 3,
179 .args = { { Int, 0 }, { Sockaddr | OUT, 1 }, { Ptr | OUT, 2 } } },
180 { .name = "recvfrom", .ret_type = 1, .nargs = 6,
181 .args = { { Int, 0 }, { BinString | OUT, 1 }, { Int, 2 }, { Hex, 3 }, { Sockaddr | OUT, 4 }, { Ptr | OUT, 5 } } },
182 { .name = "sendto", .ret_type = 1, .nargs = 6,
183 .args = { { Int, 0 }, { BinString | IN, 1 }, { Int, 2 }, { Hex, 3 }, { Sockaddr | IN, 4 }, { Ptr | IN, 5 } } },
184 { .name = "execve", .ret_type = 1, .nargs = 3,
185 .args = { { Name | IN, 0 }, { StringArray | IN, 1 }, { StringArray | IN, 2 } } },
186 { .name = "linux_execve", .ret_type = 1, .nargs = 3,
187 .args = { { Name | IN, 0 }, { StringArray | IN, 1 }, { StringArray | IN, 2 } } },
188 { .name = "kldload", .ret_type = 0, .nargs = 1,
189 .args = { { Name | IN, 0 } } },
190 { .name = "kldunload", .ret_type = 0, .nargs = 1,
191 .args = { { Int, 0 } } },
192 { .name = "kldfind", .ret_type = 0, .nargs = 1,
193 .args = { { Name | IN, 0 } } },
194 { .name = "kldnext", .ret_type = 0, .nargs = 1,
195 .args = { { Int, 0 } } },
196 { .name = "kldstat", .ret_type = 0, .nargs = 2,
197 .args = { { Int, 0 }, { Ptr, 1 } } },
198 { .name = "kldfirstmod", .ret_type = 0, .nargs = 1,
199 .args = { { Int, 0 } } },
200 { .name = "nanosleep", .ret_type = 0, .nargs = 1,
201 .args = { { Timespec, 0 } } },
202 { .name = "select", .ret_type = 1, .nargs = 5,
203 .args = { { Int, 0 }, { Fd_set, 1 }, { Fd_set, 2 }, { Fd_set, 3 }, { Timeval, 4 } } },
204 { .name = "poll", .ret_type = 1, .nargs = 3,
205 .args = { { Pollfd, 0 }, { Int, 1 }, { Int, 2 } } },
206 { .name = "gettimeofday", .ret_type = 1, .nargs = 2,
207 .args = { { Timeval | OUT, 0 }, { Ptr, 1 } } },
208 { .name = "clock_gettime", .ret_type = 1, .nargs = 2,
209 .args = { { Int, 0 }, { Timespec | OUT, 1 } } },
210 { .name = "getitimer", .ret_type = 1, .nargs = 2,
211 .args = { { Int, 0 }, { Itimerval | OUT, 2 } } },
212 { .name = "setitimer", .ret_type = 1, .nargs = 3,
213 .args = { { Int, 0 }, { Itimerval, 1 } , { Itimerval | OUT, 2 } } },
214 { .name = "kse_release", .ret_type = 0, .nargs = 1,
215 .args = { { Timespec, 0 } } },
216 { .name = "kevent", .ret_type = 0, .nargs = 6,
217 .args = { { Int, 0 }, { Kevent, 1 }, { Int, 2 }, { Kevent | OUT, 3 }, { Int, 4 }, { Timespec, 5 } } },
218 { .name = "_umtx_lock", .ret_type = 0, .nargs = 1,
219 .args = { { Umtx, 0 } } },
220 { .name = "_umtx_unlock", .ret_type = 0, .nargs = 1,
221 .args = { { Umtx, 0 } } },
222 { .name = "sigprocmask", .ret_type = 0, .nargs = 3,
223 .args = { { Sigprocmask, 0 }, { Sigset, 1 }, { Sigset | OUT, 2 } } },
224 { .name = "unmount", .ret_type = 1, .nargs = 2,
225 .args = { { Name, 0 }, { Int, 1 } } },
226 { .name = "socket", .ret_type = 1, .nargs = 3,
227 .args = { { Sockdomain, 0 }, { Socktype, 1 }, { Int, 2 } } },
228 { .name = "getrusage", .ret_type = 1, .nargs = 2,
229 .args = { { Int, 0 }, { Rusage | OUT, 1 } } },
230 { .name = "__getcwd", .ret_type = 1, .nargs = 2,
231 .args = { { Name | OUT, 0 }, { Int, 1 } } },
232 { .name = "shutdown", .ret_type = 1, .nargs = 2,
233 .args = { { Int, 0 }, { Shutdown, 1 } } },
234 { .name = "getrlimit", .ret_type = 1, .nargs = 2,
235 .args = { { Resource, 0 }, { Rlimit | OUT, 1 } } },
236 { .name = "setrlimit", .ret_type = 1, .nargs = 2,
237 .args = { { Resource, 0 }, { Rlimit | IN, 1 } } },
238 { .name = "utimes", .ret_type = 1, .nargs = 2,
239 .args = { { Name | IN, 0 }, { Timeval2 | IN, 1 } } },
240 { .name = "lutimes", .ret_type = 1, .nargs = 2,
241 .args = { { Name | IN, 0 }, { Timeval2 | IN, 1 } } },
242 { .name = "futimes", .ret_type = 1, .nargs = 2,
243 .args = { { Int, 0 }, { Timeval | IN, 1 } } },
244 { .name = "chflags", .ret_type = 1, .nargs = 2,
245 .args = { { Name | IN, 0 }, { Hex, 1 } } },
246 { .name = "lchflags", .ret_type = 1, .nargs = 2,
247 .args = { { Name | IN, 0 }, { Hex, 1 } } },
248 { .name = "pathconf", .ret_type = 1, .nargs = 2,
249 .args = { { Name | IN, 0 }, { Pathconf, 1 } } },
250 { .name = "pipe", .ret_type = 1, .nargs = 1,
251 .args = { { Ptr, 0 } } },
252 { .name = "truncate", .ret_type = 1, .nargs = 3,
253 .args = { { Name | IN, 0 }, { Int | IN, 1 }, { Quad | IN, 2 } } },
254 { .name = "ftruncate", .ret_type = 1, .nargs = 3,
255 .args = { { Int | IN, 0 }, { Int | IN, 1 }, { Quad | IN, 2 } } },
256 { .name = "kill", .ret_type = 1, .nargs = 2,
257 .args = { { Int | IN, 0 }, { Signal | IN, 1 } } },
258 { .name = "munmap", .ret_type = 1, .nargs = 2,
259 .args = { { Ptr, 0 }, { Int, 1 } } },
260 { .name = "read", .ret_type = 1, .nargs = 3,
261 .args = { { Int, 0 }, { BinString | OUT, 1 }, { Int, 2 } } },
262 { .name = "rename", .ret_type = 1, .nargs = 2,
263 .args = { { Name , 0 } , { Name, 1 } } },
264 { .name = "symlink", .ret_type = 1, .nargs = 2,
265 .args = { { Name , 0 } , { Name, 1 } } },
266 { .name = "posix_openpt", .ret_type = 1, .nargs = 1,
267 .args = { { Open, 0 } } },
268 { .name = "wait4", .ret_type = 1, .nargs = 4,
269 .args = { { Int, 0 }, { ExitStatus | OUT, 1 }, { Waitoptions, 2 },
270 { Rusage | OUT, 3 } } },
271 { .name = "wait6", .ret_type = 1, .nargs = 6,
272 .args = { { Idtype, 0 }, { Int, 1 }, { ExitStatus | OUT, 2 },
273 { Waitoptions, 3 }, { Rusage | OUT, 4 }, { Ptr, 5 } } },
274 { .name = "procctl", .ret_type = 1, .nargs = 4,
275 .args = { { Idtype, 0 }, { Int, 1 }, { Procctl, 2 }, { Ptr, 3 } } },
279 /* Xlat idea taken from strace */
285 #define X(a) { a, #a },
286 #define XEND { 0, NULL }
288 static struct xlat kevent_filters[] = {
289 X(EVFILT_READ) X(EVFILT_WRITE) X(EVFILT_AIO) X(EVFILT_VNODE)
290 X(EVFILT_PROC) X(EVFILT_SIGNAL) X(EVFILT_TIMER)
291 X(EVFILT_FS) X(EVFILT_READ) XEND
294 static struct xlat kevent_flags[] = {
295 X(EV_ADD) X(EV_DELETE) X(EV_ENABLE) X(EV_DISABLE) X(EV_ONESHOT)
296 X(EV_CLEAR) X(EV_FLAG1) X(EV_ERROR) X(EV_EOF) XEND
299 static struct xlat poll_flags[] = {
300 X(POLLSTANDARD) X(POLLIN) X(POLLPRI) X(POLLOUT) X(POLLERR)
301 X(POLLHUP) X(POLLNVAL) X(POLLRDNORM) X(POLLRDBAND)
302 X(POLLWRBAND) X(POLLINIGNEOF) XEND
305 static struct xlat mmap_flags[] = {
306 X(MAP_SHARED) X(MAP_PRIVATE) X(MAP_FIXED) X(MAP_RENAME)
307 X(MAP_NORESERVE) X(MAP_RESERVED0080) X(MAP_RESERVED0100)
308 X(MAP_HASSEMAPHORE) X(MAP_STACK) X(MAP_NOSYNC) X(MAP_ANON)
309 X(MAP_NOCORE) X(MAP_PREFAULT_READ)
316 static struct xlat mprot_flags[] = {
317 X(PROT_NONE) X(PROT_READ) X(PROT_WRITE) X(PROT_EXEC) XEND
320 static struct xlat whence_arg[] = {
321 X(SEEK_SET) X(SEEK_CUR) X(SEEK_END) XEND
324 static struct xlat sigaction_flags[] = {
325 X(SA_ONSTACK) X(SA_RESTART) X(SA_RESETHAND) X(SA_NOCLDSTOP)
326 X(SA_NODEFER) X(SA_NOCLDWAIT) X(SA_SIGINFO) XEND
329 static struct xlat fcntl_arg[] = {
330 X(F_DUPFD) X(F_GETFD) X(F_SETFD) X(F_GETFL) X(F_SETFL)
331 X(F_GETOWN) X(F_SETOWN) X(F_GETLK) X(F_SETLK) X(F_SETLKW) XEND
334 static struct xlat fcntlfd_arg[] = {
338 static struct xlat fcntlfl_arg[] = {
339 X(O_APPEND) X(O_ASYNC) X(O_FSYNC) X(O_NONBLOCK) X(O_NOFOLLOW)
343 static struct xlat sockdomain_arg[] = {
344 X(PF_UNSPEC) X(PF_LOCAL) X(PF_UNIX) X(PF_INET) X(PF_IMPLINK)
345 X(PF_PUP) X(PF_CHAOS) X(PF_NETBIOS) X(PF_ISO) X(PF_OSI)
346 X(PF_ECMA) X(PF_DATAKIT) X(PF_CCITT) X(PF_SNA) X(PF_DECnet)
347 X(PF_DLI) X(PF_LAT) X(PF_HYLINK) X(PF_APPLETALK) X(PF_ROUTE)
348 X(PF_LINK) X(PF_XTP) X(PF_COIP) X(PF_CNT) X(PF_SIP) X(PF_IPX)
349 X(PF_RTIP) X(PF_PIP) X(PF_ISDN) X(PF_KEY) X(PF_INET6)
350 X(PF_NATM) X(PF_ATM) X(PF_NETGRAPH) X(PF_SLOW) X(PF_SCLUSTER)
351 X(PF_ARP) X(PF_BLUETOOTH) XEND
354 static struct xlat socktype_arg[] = {
355 X(SOCK_STREAM) X(SOCK_DGRAM) X(SOCK_RAW) X(SOCK_RDM)
356 X(SOCK_SEQPACKET) XEND
359 static struct xlat open_flags[] = {
360 X(O_RDONLY) X(O_WRONLY) X(O_RDWR) X(O_ACCMODE) X(O_NONBLOCK)
361 X(O_APPEND) X(O_SHLOCK) X(O_EXLOCK) X(O_ASYNC) X(O_FSYNC)
362 X(O_NOFOLLOW) X(O_CREAT) X(O_TRUNC) X(O_EXCL) X(O_NOCTTY)
363 X(O_DIRECT) X(O_DIRECTORY) X(O_EXEC) X(O_TTY_INIT) X(O_CLOEXEC) XEND
366 static struct xlat shutdown_arg[] = {
367 X(SHUT_RD) X(SHUT_WR) X(SHUT_RDWR) XEND
370 static struct xlat resource_arg[] = {
371 X(RLIMIT_CPU) X(RLIMIT_FSIZE) X(RLIMIT_DATA) X(RLIMIT_STACK)
372 X(RLIMIT_CORE) X(RLIMIT_RSS) X(RLIMIT_MEMLOCK) X(RLIMIT_NPROC)
373 X(RLIMIT_NOFILE) X(RLIMIT_SBSIZE) X(RLIMIT_VMEM) XEND
376 static struct xlat pathconf_arg[] = {
377 X(_PC_LINK_MAX) X(_PC_MAX_CANON) X(_PC_MAX_INPUT)
378 X(_PC_NAME_MAX) X(_PC_PATH_MAX) X(_PC_PIPE_BUF)
379 X(_PC_CHOWN_RESTRICTED) X(_PC_NO_TRUNC) X(_PC_VDISABLE)
380 X(_PC_ASYNC_IO) X(_PC_PRIO_IO) X(_PC_SYNC_IO)
381 X(_PC_ALLOC_SIZE_MIN) X(_PC_FILESIZEBITS)
382 X(_PC_REC_INCR_XFER_SIZE) X(_PC_REC_MAX_XFER_SIZE)
383 X(_PC_REC_MIN_XFER_SIZE) X(_PC_REC_XFER_ALIGN)
384 X(_PC_SYMLINK_MAX) X(_PC_ACL_EXTENDED) X(_PC_ACL_PATH_MAX)
385 X(_PC_CAP_PRESENT) X(_PC_INF_PRESENT) X(_PC_MAC_PRESENT)
389 static struct xlat rfork_flags[] = {
390 X(RFPROC) X(RFNOWAIT) X(RFFDG) X(RFCFDG) X(RFTHREAD) X(RFMEM)
391 X(RFSIGSHARE) X(RFTSIGZMB) X(RFLINUXTHPN) XEND
394 static struct xlat wait_options[] = {
395 X(WNOHANG) X(WUNTRACED) X(WCONTINUED) X(WNOWAIT) X(WEXITED)
399 static struct xlat idtype_arg[] = {
400 X(P_PID) X(P_PPID) X(P_PGID) X(P_SID) X(P_CID) X(P_UID) X(P_GID)
401 X(P_ALL) X(P_LWPID) X(P_TASKID) X(P_PROJID) X(P_POOLID) X(P_JAILID)
402 X(P_CTID) X(P_CPUID) X(P_PSETID) XEND
405 static struct xlat procctl_arg[] = {
406 X(PROC_SPROTECT) XEND
413 * Searches an xlat array for a value, and returns it if found. Otherwise
414 * return a string representation.
417 lookup(struct xlat *xlat, int val, int base)
421 for (; xlat->str != NULL; xlat++)
422 if (xlat->val == val)
426 sprintf(tmp, "0%o", val);
429 sprintf(tmp, "0x%x", val);
432 sprintf(tmp, "%u", val);
435 errx(1,"Unknown lookup base");
442 xlookup(struct xlat *xlat, int val)
445 return (lookup(xlat, val, 16));
448 /* Searches an xlat array containing bitfield values. Remaining bits
449 set after removing the known ones are printed at the end:
452 xlookup_bits(struct xlat *xlat, int val)
455 static char str[512];
459 for (; xlat->str != NULL; xlat++) {
460 if ((xlat->val & rem) == xlat->val) {
461 /* don't print the "all-bits-zero" string unless all
462 bits are really zero */
463 if (xlat->val == 0 && val != 0)
465 len += sprintf(str + len, "%s|", xlat->str);
469 /* if we have leftover bits or didn't match anything */
471 len += sprintf(str + len, "0x%x", rem);
472 if (len && str[len - 1] == '|')
479 * If/when the list gets big, it might be desirable to do it
480 * as a hash table or binary search.
484 get_syscall(const char *name)
492 if (strcmp(name, sc->name) == 0)
502 * Copy a fixed amount of bytes from the process.
506 get_struct(pid_t pid, void *offset, void *buf, int len)
508 struct ptrace_io_desc iorequest;
510 iorequest.piod_op = PIOD_READ_D;
511 iorequest.piod_offs = offset;
512 iorequest.piod_addr = buf;
513 iorequest.piod_len = len;
514 if (ptrace(PT_IO, pid, (caddr_t)&iorequest, 0) < 0)
520 #define BLOCKSIZE 1024
523 * Copy a string from the process. Note that it is
524 * expected to be a C string, but if max is set, it will
525 * only get that much.
529 get_string(pid_t pid, void *offset, int max)
531 struct ptrace_io_desc iorequest;
533 int diff, i, size, totalsize;
536 totalsize = size = max ? (max + 1) : BLOCKSIZE;
537 buf = malloc(totalsize);
541 diff = totalsize - size;
542 iorequest.piod_op = PIOD_READ_D;
543 iorequest.piod_offs = (char *)offset + diff;
544 iorequest.piod_addr = buf + diff;
545 iorequest.piod_len = size;
546 if (ptrace(PT_IO, pid, (caddr_t)&iorequest, 0) < 0) {
550 for (i = 0 ; i < size; i++) {
551 if (buf[diff + i] == '\0')
554 if (totalsize < MAXSIZE - BLOCKSIZE && max == 0) {
555 totalsize += BLOCKSIZE;
556 buf = realloc(buf, totalsize);
559 buf[totalsize - 1] = '\0';
572 asprintf(&tmp, "%d", sig);
578 * Converts a syscall argument into a string. Said string is
579 * allocated via malloc(), so needs to be free()'d. The file
580 * descriptor is for the process' memory (via /proc), and is used
581 * to get any data (where the argument is a pointer). sc is
582 * a pointer to the syscall description (see above); args is
583 * an array of all of the system call arguments.
587 print_arg(struct syscall_args *sc, unsigned long *args, long retval,
588 struct trussinfo *trussinfo)
594 pid = trussinfo->pid;
595 switch (sc->type & ARG_MASK) {
597 asprintf(&tmp, "0x%x", (int)args[sc->offset]);
600 asprintf(&tmp, "0%o", (int)args[sc->offset]);
603 asprintf(&tmp, "%d", (int)args[sc->offset]);
606 /* NULL-terminated string. */
608 tmp2 = get_string(pid, (void*)args[sc->offset], 0);
609 asprintf(&tmp, "\"%s\"", tmp2);
614 /* Binary block of data that might have printable characters.
615 XXX If type|OUT, assume that the length is the syscall's
616 return value. Otherwise, assume that the length of the block
617 is in the next syscall argument. */
618 int max_string = trussinfo->strsize;
619 char tmp2[max_string+1], *tmp3;
626 len = args[sc->offset + 1];
628 /* Don't print more than max_string characters, to avoid word
629 wrap. If we have to truncate put some ... after the string.
631 if (len > max_string) {
635 if (len && get_struct(pid, (void*)args[sc->offset], &tmp2, len)
637 tmp3 = malloc(len * 4 + 1);
639 if (strvisx(tmp3, tmp2, len,
640 VIS_CSTYLE|VIS_TAB|VIS_NL) <= max_string)
645 asprintf(&tmp, "\"%s\"%s", tmp3, truncated ?
649 asprintf(&tmp, "0x%lx", args[sc->offset]);
657 char *strarray[100]; /* XXX This is ugly. */
659 if (get_struct(pid, (void *)args[sc->offset],
660 (void *)&strarray, sizeof(strarray)) == -1)
661 err(1, "get_struct %p", (void *)args[sc->offset]);
665 /* Find out how large of a buffer we'll need. */
666 while (strarray[num] != NULL) {
667 string = get_string(pid, (void*)strarray[num], 0);
668 size += strlen(string);
672 size += 4 + (num * 4);
673 tmp = (char *)malloc(size);
676 tmp2 += sprintf(tmp2, " [");
677 for (i = 0; i < num; i++) {
678 string = get_string(pid, (void*)strarray[i], 0);
679 tmp2 += sprintf(tmp2, " \"%s\"%c", string,
680 (i + 1 == num) ? ' ' : ',');
683 tmp2 += sprintf(tmp2, "]");
688 asprintf(&tmp, "0x%lx", args[sc->offset]);
692 unsigned long long ll;
693 ll = *(unsigned long long *)(args + sc->offset);
694 asprintf(&tmp, "0x%llx", ll);
699 asprintf(&tmp, "0x%lx", args[sc->offset]);
707 tmp2 = get_string(pid, (void*)args[sc->offset], retval);
708 asprintf(&tmp, "\"%s\"", tmp2);
713 const char *temp = ioctlname(args[sc->offset]);
717 unsigned long arg = args[sc->offset];
718 asprintf(&tmp, "0x%lx { IO%s%s 0x%lx('%c'), %lu, %lu }",
719 arg, arg & IOC_OUT ? "R" : "",
720 arg & IOC_IN ? "W" : "", IOCGROUP(arg),
721 isprint(IOCGROUP(arg)) ? (char)IOCGROUP(arg) : '?',
722 arg & 0xFF, IOCPARM_LEN(arg));
728 if (get_struct(pid, (void *)args[sc->offset], &umtx,
730 asprintf(&tmp, "{ 0x%lx }", (long)umtx.u_owner);
732 asprintf(&tmp, "0x%lx", args[sc->offset]);
737 if (get_struct(pid, (void *)args[sc->offset], &ts,
739 asprintf(&tmp, "{%ld.%09ld }", (long)ts.tv_sec,
742 asprintf(&tmp, "0x%lx", args[sc->offset]);
747 if (get_struct(pid, (void *)args[sc->offset], &tv, sizeof(tv))
749 asprintf(&tmp, "{%ld.%06ld }", (long)tv.tv_sec,
752 asprintf(&tmp, "0x%lx", args[sc->offset]);
756 struct timeval tv[2];
757 if (get_struct(pid, (void *)args[sc->offset], &tv, sizeof(tv))
759 asprintf(&tmp, "{%ld.%06ld, %ld.%06ld }",
760 (long)tv[0].tv_sec, tv[0].tv_usec,
761 (long)tv[1].tv_sec, tv[1].tv_usec);
763 asprintf(&tmp, "0x%lx", args[sc->offset]);
767 struct itimerval itv;
768 if (get_struct(pid, (void *)args[sc->offset], &itv,
770 asprintf(&tmp, "{%ld.%06ld, %ld.%06ld }",
771 (long)itv.it_interval.tv_sec,
772 itv.it_interval.tv_usec,
773 (long)itv.it_value.tv_sec,
774 itv.it_value.tv_usec);
776 asprintf(&tmp, "0x%lx", args[sc->offset]);
781 * XXX: A Pollfd argument expects the /next/ syscall argument
782 * to be the number of fds in the array. This matches the poll
786 int numfds = args[sc->offset+1];
787 int bytes = sizeof(struct pollfd) * numfds;
788 int i, tmpsize, u, used;
789 const int per_fd = 100;
791 if ((pfd = malloc(bytes)) == NULL)
792 err(1, "Cannot malloc %d bytes for pollfd array",
794 if (get_struct(pid, (void *)args[sc->offset], pfd, bytes)
797 tmpsize = 1 + per_fd * numfds + 2;
798 if ((tmp = malloc(tmpsize)) == NULL)
799 err(1, "Cannot alloc %d bytes for poll output",
803 for (i = 0; i < numfds; i++) {
805 u = snprintf(tmp + used, per_fd, "%s%d/%s",
806 i > 0 ? " " : "", pfd[i].fd,
807 xlookup_bits(poll_flags, pfd[i].events));
809 used += u < per_fd ? u : per_fd;
814 asprintf(&tmp, "0x%lx", args[sc->offset]);
821 * XXX: A Fd_set argument expects the /first/ syscall argument
822 * to be the number of fds in the array. This matches the
826 int numfds = args[0];
827 int bytes = _howmany(numfds, _NFDBITS) * _NFDBITS;
828 int i, tmpsize, u, used;
829 const int per_fd = 20;
831 if ((fds = malloc(bytes)) == NULL)
832 err(1, "Cannot malloc %d bytes for fd_set array",
834 if (get_struct(pid, (void *)args[sc->offset], fds, bytes)
837 tmpsize = 1 + numfds * per_fd + 2;
838 if ((tmp = malloc(tmpsize)) == NULL)
839 err(1, "Cannot alloc %d bytes for fd_set "
843 for (i = 0; i < numfds; i++) {
844 if (FD_ISSET(i, fds)) {
845 u = snprintf(tmp + used, per_fd, "%d ",
848 used += u < per_fd ? u : per_fd;
851 if (tmp[used-1] == ' ')
856 asprintf(&tmp, "0x%lx", args[sc->offset]);
861 tmp = strsig2(args[sc->offset]);
869 sig = args[sc->offset];
870 if (get_struct(pid, (void *)args[sc->offset], (void *)&ss,
872 asprintf(&tmp, "0x%lx", args[sc->offset]);
875 tmp = malloc(sys_nsig * 8); /* 7 bytes avg per signal name */
877 for (i = 1; i < sys_nsig; i++) {
878 if (sigismember(&ss, i)) {
880 used += sprintf(tmp + used, "%s|", signame);
891 switch (args[sc->offset]) {
892 #define S(a) case a: tmp = strdup(#a); break;
899 asprintf(&tmp, "0x%lx", args[sc->offset]);
903 /* XXX output depends on the value of the previous argument */
904 switch (args[sc->offset-1]) {
906 tmp = strdup(xlookup_bits(fcntlfd_arg,
910 tmp = strdup(xlookup_bits(fcntlfl_arg,
919 asprintf(&tmp, "0x%lx", args[sc->offset]);
925 tmp = strdup(xlookup_bits(open_flags, args[sc->offset]));
928 tmp = strdup(xlookup(fcntl_arg, args[sc->offset]));
931 tmp = strdup(xlookup_bits(mprot_flags, args[sc->offset]));
934 char *base, *alignstr;
938 * MAP_ALIGNED can't be handled by xlookup_bits(), so
939 * generate that string manually and prepend it to the
940 * string from xlookup_bits(). Have to be careful to
941 * avoid outputting MAP_ALIGNED|0 if MAP_ALIGNED is
944 flags = args[sc->offset] & ~MAP_ALIGNMENT_MASK;
945 align = args[sc->offset] & MAP_ALIGNMENT_MASK;
947 if (align == MAP_ALIGNED_SUPER)
948 alignstr = strdup("MAP_ALIGNED_SUPER");
950 asprintf(&alignstr, "MAP_ALIGNED(%d)",
951 align >> MAP_ALIGNMENT_SHIFT);
958 base = strdup(xlookup_bits(mmap_flags, flags));
959 if (alignstr == NULL) {
963 asprintf(&tmp, "%s|%s", alignstr, base);
969 tmp = strdup(xlookup(whence_arg, args[sc->offset]));
972 tmp = strdup(xlookup(sockdomain_arg, args[sc->offset]));
975 tmp = strdup(xlookup(socktype_arg, args[sc->offset]));
978 tmp = strdup(xlookup(shutdown_arg, args[sc->offset]));
981 tmp = strdup(xlookup(resource_arg, args[sc->offset]));
984 tmp = strdup(xlookup(pathconf_arg, args[sc->offset]));
987 tmp = strdup(xlookup_bits(rfork_flags, args[sc->offset]));
990 struct sockaddr_storage ss;
992 struct sockaddr_in *lsin;
993 struct sockaddr_in6 *lsin6;
994 struct sockaddr_un *sun;
1000 if (args[sc->offset] == 0) {
1001 asprintf(&tmp, "NULL");
1005 /* yuck: get ss_len */
1006 if (get_struct(pid, (void *)args[sc->offset], (void *)&ss,
1007 sizeof(ss.ss_len) + sizeof(ss.ss_family)) == -1)
1008 err(1, "get_struct %p", (void *)args[sc->offset]);
1010 * If ss_len is 0, then try to guess from the sockaddr type.
1011 * AF_UNIX may be initialized incorrectly, so always frob
1012 * it by using the "right" size.
1014 if (ss.ss_len == 0 || ss.ss_family == AF_UNIX) {
1015 switch (ss.ss_family) {
1017 ss.ss_len = sizeof(*lsin);
1020 ss.ss_len = sizeof(*sun);
1027 if (get_struct(pid, (void *)args[sc->offset], (void *)&ss,
1029 err(2, "get_struct %p", (void *)args[sc->offset]);
1032 switch (ss.ss_family) {
1034 lsin = (struct sockaddr_in *)&ss;
1035 inet_ntop(AF_INET, &lsin->sin_addr, addr, sizeof addr);
1036 asprintf(&tmp, "{ AF_INET %s:%d }", addr,
1037 htons(lsin->sin_port));
1040 lsin6 = (struct sockaddr_in6 *)&ss;
1041 inet_ntop(AF_INET6, &lsin6->sin6_addr, addr,
1043 asprintf(&tmp, "{ AF_INET6 [%s]:%d }", addr,
1044 htons(lsin6->sin6_port));
1047 sun = (struct sockaddr_un *)&ss;
1048 asprintf(&tmp, "{ AF_UNIX \"%s\" }", sun->sun_path);
1051 sa = (struct sockaddr *)&ss;
1052 asprintf(&tmp, "{ sa_len = %d, sa_family = %d, sa_data "
1053 "= {%n%*s } }", (int)sa->sa_len, (int)sa->sa_family,
1054 &i, 6 * (int)(sa->sa_len - ((char *)&sa->sa_data -
1058 for (q = (u_char *)&sa->sa_data;
1059 q < (u_char *)sa + sa->sa_len; q++)
1060 p += sprintf(p, " %#02x,", *q);
1066 struct sigaction sa;
1070 if (get_struct(pid, (void *)args[sc->offset], &sa, sizeof(sa))
1072 asprintf(&hand, "%p", sa.sa_handler);
1073 if (sa.sa_handler == SIG_DFL)
1075 else if (sa.sa_handler == SIG_IGN)
1080 asprintf(&tmp, "{ %s %s ss_t }", h,
1081 xlookup_bits(sigaction_flags, sa.sa_flags));
1084 asprintf(&tmp, "0x%lx", args[sc->offset]);
1089 * XXX XXX: the size of the array is determined by either the
1090 * next syscall argument, or by the syscall returnvalue,
1091 * depending on which argument number we are. This matches the
1092 * kevent syscall, but luckily that's the only syscall that uses
1098 int i, tmpsize, u, used;
1099 const int per_ke = 100;
1101 if (sc->offset == 1)
1102 numevents = args[sc->offset+1];
1103 else if (sc->offset == 3 && retval != -1)
1107 bytes = sizeof(struct kevent) * numevents;
1108 if ((ke = malloc(bytes)) == NULL)
1109 err(1, "Cannot malloc %d bytes for kevent array",
1111 if (numevents >= 0 && get_struct(pid, (void *)args[sc->offset],
1114 tmpsize = 1 + per_ke * numevents + 2;
1115 if ((tmp = malloc(tmpsize)) == NULL)
1116 err(1, "Cannot alloc %d bytes for kevent "
1120 for (i = 0; i < numevents; i++) {
1121 u = snprintf(tmp + used, per_ke,
1122 "%s%p,%s,%s,%d,%p,%p",
1124 (void *)ke[i].ident,
1125 xlookup(kevent_filters, ke[i].filter),
1126 xlookup_bits(kevent_flags, ke[i].flags),
1129 (void *)ke[i].udata);
1131 used += u < per_ke ? u : per_ke;
1136 asprintf(&tmp, "0x%lx", args[sc->offset]);
1143 if (get_struct(pid, (void *)args[sc->offset], &st, sizeof(st))
1146 strmode(st.st_mode, mode);
1148 "{ mode=%s,inode=%jd,size=%jd,blksize=%ld }", mode,
1149 (intmax_t)st.st_ino, (intmax_t)st.st_size,
1150 (long)st.st_blksize);
1152 asprintf(&tmp, "0x%lx", args[sc->offset]);
1158 if (get_struct(pid, (void *)args[sc->offset], &ru, sizeof(ru))
1161 "{ u=%ld.%06ld,s=%ld.%06ld,in=%ld,out=%ld }",
1162 (long)ru.ru_utime.tv_sec, ru.ru_utime.tv_usec,
1163 (long)ru.ru_stime.tv_sec, ru.ru_stime.tv_usec,
1164 ru.ru_inblock, ru.ru_oublock);
1166 asprintf(&tmp, "0x%lx", args[sc->offset]);
1171 if (get_struct(pid, (void *)args[sc->offset], &rl, sizeof(rl))
1173 asprintf(&tmp, "{ cur=%ju,max=%ju }",
1174 rl.rlim_cur, rl.rlim_max);
1176 asprintf(&tmp, "0x%lx", args[sc->offset]);
1183 if (get_struct(pid, (void *)args[sc->offset], &status,
1184 sizeof(status)) != -1) {
1185 if (WIFCONTINUED(status))
1186 tmp = strdup("{ CONTINUED }");
1187 else if (WIFEXITED(status))
1188 asprintf(&tmp, "{ EXITED,val=%d }",
1189 WEXITSTATUS(status));
1190 else if (WIFSIGNALED(status))
1191 asprintf(&tmp, "{ SIGNALED,sig=%s%s }",
1192 signame = strsig2(WTERMSIG(status)),
1193 WCOREDUMP(status) ? ",cored" : "");
1195 asprintf(&tmp, "{ STOPPED,sig=%s }",
1196 signame = strsig2(WTERMSIG(status)));
1198 asprintf(&tmp, "0x%lx", args[sc->offset]);
1203 tmp = strdup(xlookup_bits(wait_options, args[sc->offset]));
1206 tmp = strdup(xlookup(idtype_arg, args[sc->offset]));
1209 tmp = strdup(xlookup(procctl_arg, args[sc->offset]));
1212 errx(1, "Invalid argument type %d\n", sc->type & ARG_MASK);
1219 * Print (to outfile) the system call and its arguments. Note that
1220 * nargs is the number of arguments (not the number of words; this is
1221 * potentially confusing, I know).
1225 print_syscall(struct trussinfo *trussinfo, const char *name, int nargs,
1228 struct timespec timediff;
1232 if (trussinfo->flags & FOLLOWFORKS)
1233 len += fprintf(trussinfo->outfile, "%5d: ", trussinfo->pid);
1235 if (name != NULL && (strcmp(name, "execve") == 0 ||
1236 strcmp(name, "exit") == 0)) {
1237 clock_gettime(CLOCK_REALTIME, &trussinfo->curthread->after);
1240 if (trussinfo->flags & ABSOLUTETIMESTAMPS) {
1241 timespecsubt(&trussinfo->curthread->after,
1242 &trussinfo->start_time, &timediff);
1243 len += fprintf(trussinfo->outfile, "%ld.%09ld ",
1244 (long)timediff.tv_sec, timediff.tv_nsec);
1247 if (trussinfo->flags & RELATIVETIMESTAMPS) {
1248 timespecsubt(&trussinfo->curthread->after,
1249 &trussinfo->curthread->before, &timediff);
1250 len += fprintf(trussinfo->outfile, "%ld.%09ld ",
1251 (long)timediff.tv_sec, timediff.tv_nsec);
1254 len += fprintf(trussinfo->outfile, "%s(", name);
1256 for (i = 0; i < nargs; i++) {
1258 len += fprintf(trussinfo->outfile, "%s", s_args[i]);
1260 len += fprintf(trussinfo->outfile,
1261 "<missing argument>");
1262 len += fprintf(trussinfo->outfile, "%s", i < (nargs - 1) ?
1265 len += fprintf(trussinfo->outfile, ")");
1266 for (i = 0; i < 6 - (len / 8); i++)
1267 fprintf(trussinfo->outfile, "\t");
1271 print_syscall_ret(struct trussinfo *trussinfo, const char *name, int nargs,
1272 char **s_args, int errorp, long retval, struct syscall *sc)
1274 struct timespec timediff;
1276 if (trussinfo->flags & COUNTONLY) {
1279 clock_gettime(CLOCK_REALTIME, &trussinfo->curthread->after);
1280 timespecsubt(&trussinfo->curthread->after,
1281 &trussinfo->curthread->before, &timediff);
1282 timespecadd(&sc->time, &timediff, &sc->time);
1289 print_syscall(trussinfo, name, nargs, s_args);
1290 fflush(trussinfo->outfile);
1292 fprintf(trussinfo->outfile, " ERR#%ld '%s'\n", retval,
1296 * Because pipe(2) has a special assembly glue to provide the
1297 * libc API, we have to adjust retval.
1299 if (name != NULL && strcmp(name, "pipe") == 0)
1301 fprintf(trussinfo->outfile, " = %ld (0x%lx)\n", retval, retval);
1306 print_summary(struct trussinfo *trussinfo)
1308 struct timespec total = {0, 0};
1312 fprintf(trussinfo->outfile, "%-20s%15s%8s%8s\n",
1313 "syscall", "seconds", "calls", "errors");
1315 for (sc = syscalls; sc->name != NULL; sc++)
1317 fprintf(trussinfo->outfile, "%-20s%5jd.%09ld%8d%8d\n",
1318 sc->name, (intmax_t)sc->time.tv_sec,
1319 sc->time.tv_nsec, sc->ncalls, sc->nerror);
1320 timespecadd(&total, &sc->time, &total);
1321 ncall += sc->ncalls;
1322 nerror += sc->nerror;
1324 fprintf(trussinfo->outfile, "%20s%15s%8s%8s\n",
1325 "", "-------------", "-------", "-------");
1326 fprintf(trussinfo->outfile, "%-20s%5jd.%09ld%8d%8d\n",
1327 "", (intmax_t)total.tv_sec, total.tv_nsec, ncall, nerror);