2 * Copryight 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
43 #include <sys/types.h>
44 #include <sys/socket.h>
47 #include <netinet/in.h>
48 #include <arpa/inet.h>
49 #include <sys/ioccom.h>
50 #include <machine/atomic.h>
53 #include <sys/event.h>
55 #include <sys/resource.h>
75 * This should probably be in its own file, sorted alphabetically.
78 struct syscall syscalls[] = {
80 { { Int, 0 } , { Fcntl, 1 }, { Fcntlflag | OUT, 2 }}},
82 { { Name, 0 } , { Readlinkres | OUT, 1 }, { Int, 2 }}},
85 { { Int, 0 }, {Quad, 2 }, { Whence, 3 }}},
87 { { Int, 0 }, {Quad, 2 }, { Whence, 4 }}},
89 { "linux_lseek", 2, 3,
90 { { Int, 0 }, {Int, 1 }, { Whence, 2 }}},
93 { { Ptr, 0 }, {Int, 1}, {Mprot, 2}, {Mmapflags, 3}, {Int, 4}, {Quad, 5}}},
95 { { Ptr, 0 }, {Int, 1}, {Mprot, 2}, {Mmapflags, 3}, {Int, 4}, {Quad, 6}}},
98 { { Ptr, 0 }, {Int, 1}, {Mprot, 2}}},
100 { { Name | IN, 0} , { Open, 1}, {Octal, 2}}},
102 { { Name, 0} , {Octal, 1}}},
103 { "linux_open", 1, 3,
104 { { Name, 0 }, { Hex, 1}, { Octal, 2 }}},
108 { { Name, 0 }, { Name, 1 }}},
116 { { Name, 0 }, { Octal, 1 }, { Int, 3 }}},
118 { { Name, 0 }, { Octal, 1 }}},
120 { { Name, 0 }, { Int, 1 }, { Int, 2 }}},
122 { { Name, 0 }, { Name, 1 }, { Int, 2 }, { Ptr, 3 }}},
124 { { Name, 0 }, { Int, 2 }}},
126 { { Int, 0}, { Stat | OUT , 1 }}},
128 { { Name | IN, 0 }, { Stat | OUT, 1 }}},
130 { { Name | IN, 0 }, { Stat | OUT, 1 }}},
131 { "linux_newstat", 1, 2,
132 { { Name | IN, 0 }, { Ptr | OUT, 1 }}},
133 { "linux_newfstat", 1, 2,
134 { { Int, 0 }, { Ptr | OUT, 1 }}},
136 { { Int, 0 }, { BinString | IN, 1 }, { Int, 2 }}},
138 { { Int, 0 }, { Ioctl, 1 }, { Hex, 2 }}},
139 { "break", 1, 1, { { Hex, 0 }}},
140 { "exit", 0, 1, { { Hex, 0 }}},
141 { "access", 1, 2, { { Name | IN, 0 }, { Int, 1 }}},
143 { { Signal, 0 }, { Sigaction | IN, 1 }, { Sigaction | OUT, 2 }}},
145 { { Int, 0 }, { Sockaddr | OUT, 1 }, { Ptr | OUT, 2 } } },
147 { { Int, 0 }, { Sockaddr | IN, 1 }, { Int, 2 } } },
149 { { Int, 0 }, { Sockaddr | IN, 1 }, { Int, 2 } } },
150 { "getpeername", 1, 3,
151 { { Int, 0 }, { Sockaddr | OUT, 1 }, { Ptr | OUT, 2 } } },
152 { "getsockname", 1, 3,
153 { { Int, 0 }, { Sockaddr | OUT, 1 }, { Ptr | OUT, 2 } } },
155 { { Int, 0 }, { BinString | OUT, 1 }, { Int, 2 }, { Hex, 3 }, { Sockaddr | OUT, 4 }, { Ptr | OUT, 5 } } },
157 { { Int, 0 }, { BinString | IN, 1 }, { Int, 2 }, { Hex, 3 }, { Sockaddr | IN, 4 }, { Ptr | IN, 5 } } },
159 { { Name | IN, 0 }, { StringArray | IN, 1 }, { StringArray | IN, 2 } } },
160 { "linux_execve", 1, 3,
161 { { Name | IN, 0 }, { StringArray | IN, 1 }, { StringArray | IN, 2 } } },
162 { "kldload", 0, 1, { { Name | IN, 0 }}},
163 { "kldunload", 0, 1, { { Int, 0 }}},
164 { "kldfind", 0, 1, { { Name | IN, 0 }}},
165 { "kldnext", 0, 1, { { Int, 0 }}},
166 { "kldstat", 0, 2, { { Int, 0 }, { Ptr, 1 }}},
167 { "kldfirstmod", 0, 1, { { Int, 0 }}},
168 { "nanosleep", 0, 1, { { Timespec, 0 }}},
169 { "select", 1, 5, { { Int, 0 }, { Fd_set, 1 }, { Fd_set, 2 }, { Fd_set, 3 }, { Timeval, 4 }}},
170 { "poll", 1, 3, { { Pollfd, 0 }, { Int, 1 }, { Int, 2 }}},
171 { "gettimeofday", 1, 2, { { Timeval | OUT, 0 }, { Ptr, 1 }}},
172 { "clock_gettime", 1, 2, { { Int, 0 }, { Timespec | OUT, 1 }}},
173 { "getitimer", 1, 2, { { Int, 0 }, { Itimerval | OUT, 2 }}},
174 { "setitimer", 1, 3, { { Int, 0 }, { Itimerval, 1} , { Itimerval | OUT, 2 }}},
175 { "kse_release", 0, 1, { { Timespec, 0 }}},
176 { "kevent", 0, 6, { { Int, 0 }, { Kevent, 1 }, { Int, 2 }, { Kevent | OUT, 3 }, { Int, 4 }, { Timespec, 5 }}},
177 { "_umtx_lock", 0, 1, { { Umtx, 0 }}},
178 { "_umtx_unlock", 0, 1, { { Umtx, 0 }}},
179 { "sigprocmask", 0, 3, { { Sigprocmask, 0 }, { Sigset, 1 }, { Sigset | OUT, 2 }}},
180 { "unmount", 1, 2, { { Name, 0 }, { Int, 1 }}},
181 { "socket", 1, 3, { { Sockdomain, 0}, { Socktype, 1}, {Int, 2 }}},
182 { "getrusage", 1, 2, { { Int, 0 }, { Rusage | OUT, 1 }}},
183 { "__getcwd", 1, 2, { { Name | OUT, 0}, { Int, 1 }}},
184 { "shutdown", 1, 2, { { Int, 0}, { Shutdown, 1}}},
185 { "getrlimit", 1, 2, { { Resource, 0}, {Rlimit | OUT, 1}}},
186 { "setrlimit", 1, 2, { { Resource, 0}, {Rlimit | IN, 1}}},
188 { { Name | IN, 0 }, { Timeval2 | IN, 1 }}},
190 { { Name | IN, 0 }, { Timeval2 | IN, 1 }}},
192 { { Int, 0 }, { Timeval | IN, 1 }}},
194 { { Name | IN, 0 }, { Hex, 1 }}},
196 { { Name | IN, 0 }, { Hex, 1 }}},
198 { { Name | IN, 0 }, { Pathconf, 1 }}},
200 { { Name | IN, 0 }, { Int | IN, 1 }, { Quad | IN, 2 }}},
202 { { Int | IN, 0 }, { Int | IN, 1 }, { Quad | IN, 2 }}},
204 { { Int | IN, 0 }, { Signal | IN, 1}}},
206 { { Ptr, 0 }, { Int, 1 }}},
208 { { Int, 0}, { BinString | OUT, 1}, { Int, 2}}},
210 { { Name , 0} , { Name, 1}}},
212 { { Name , 0} , { Name, 1}}},
213 { 0, 0, 0, { { 0, 0 }}},
216 /* Xlat idea taken from strace */
222 #define X(a) { a, #a },
223 #define XEND { 0, NULL }
225 static struct xlat kevent_filters[] = {
226 X(EVFILT_READ) X(EVFILT_WRITE) X(EVFILT_AIO) X(EVFILT_VNODE)
227 X(EVFILT_PROC) X(EVFILT_SIGNAL) X(EVFILT_TIMER)
228 X(EVFILT_NETDEV) X(EVFILT_FS) X(EVFILT_READ) XEND
231 static struct xlat kevent_flags[] = {
232 X(EV_ADD) X(EV_DELETE) X(EV_ENABLE) X(EV_DISABLE) X(EV_ONESHOT)
233 X(EV_CLEAR) X(EV_FLAG1) X(EV_ERROR) X(EV_EOF) XEND
236 struct xlat poll_flags[] = {
237 X(POLLSTANDARD) X(POLLIN) X(POLLPRI) X(POLLOUT) X(POLLERR)
238 X(POLLHUP) X(POLLNVAL) X(POLLRDNORM) X(POLLRDBAND)
239 X(POLLWRBAND) X(POLLINIGNEOF) XEND
242 static struct xlat mmap_flags[] = {
243 X(MAP_SHARED) X(MAP_PRIVATE) X(MAP_FIXED) X(MAP_RENAME)
244 X(MAP_NORESERVE) X(MAP_RESERVED0080) X(MAP_RESERVED0100)
245 X(MAP_HASSEMAPHORE) X(MAP_STACK) X(MAP_NOSYNC) X(MAP_ANON)
249 static struct xlat mprot_flags[] = {
250 X(PROT_NONE) X(PROT_READ) X(PROT_WRITE) X(PROT_EXEC) XEND
253 static struct xlat whence_arg[] = {
254 X(SEEK_SET) X(SEEK_CUR) X(SEEK_END) XEND
257 static struct xlat sigaction_flags[] = {
258 X(SA_ONSTACK) X(SA_RESTART) X(SA_RESETHAND) X(SA_NOCLDSTOP)
259 X(SA_NODEFER) X(SA_NOCLDWAIT) X(SA_SIGINFO) XEND
262 static struct xlat fcntl_arg[] = {
263 X(F_DUPFD) X(F_GETFD) X(F_SETFD) X(F_GETFL) X(F_SETFL)
264 X(F_GETOWN) X(F_SETOWN) X(F_GETLK) X(F_SETLK) X(F_SETLKW) XEND
267 static struct xlat fcntlfd_arg[] = {
271 static struct xlat fcntlfl_arg[] = {
272 X(O_APPEND) X(O_ASYNC) X(O_FSYNC) X(O_NONBLOCK) X(O_NOFOLLOW)
276 static struct xlat sockdomain_arg[] = {
277 X(PF_UNSPEC) X(PF_LOCAL) X(PF_UNIX) X(PF_INET) X(PF_IMPLINK)
278 X(PF_PUP) X(PF_CHAOS) X(PF_NETBIOS) X(PF_ISO) X(PF_OSI)
279 X(PF_ECMA) X(PF_DATAKIT) X(PF_CCITT) X(PF_SNA) X(PF_DECnet)
280 X(PF_DLI) X(PF_LAT) X(PF_HYLINK) X(PF_APPLETALK) X(PF_ROUTE)
281 X(PF_LINK) X(PF_XTP) X(PF_COIP) X(PF_CNT) X(PF_SIP) X(PF_IPX)
282 X(PF_RTIP) X(PF_PIP) X(PF_ISDN) X(PF_KEY) X(PF_INET6)
283 X(PF_NATM) X(PF_ATM) X(PF_NETGRAPH) X(PF_SLOW) X(PF_SCLUSTER)
284 X(PF_ARP) X(PF_BLUETOOTH) XEND
287 static struct xlat socktype_arg[] = {
288 X(SOCK_STREAM) X(SOCK_DGRAM) X(SOCK_RAW) X(SOCK_RDM)
289 X(SOCK_SEQPACKET) XEND
292 static struct xlat open_flags[] = {
293 X(O_RDONLY) X(O_WRONLY) X(O_RDWR) X(O_ACCMODE) X(O_NONBLOCK)
294 X(O_APPEND) X(O_SHLOCK) X(O_EXLOCK) X(O_ASYNC) X(O_FSYNC)
295 X(O_NOFOLLOW) X(O_CREAT) X(O_TRUNC) X(O_EXCL) X(O_NOCTTY)
299 static struct xlat shutdown_arg[] = {
300 X(SHUT_RD) X(SHUT_WR) X(SHUT_RDWR) XEND
303 static struct xlat resource_arg[] = {
304 X(RLIMIT_CPU) X(RLIMIT_FSIZE) X(RLIMIT_DATA) X(RLIMIT_STACK)
305 X(RLIMIT_CORE) X(RLIMIT_RSS) X(RLIMIT_MEMLOCK) X(RLIMIT_NPROC)
306 X(RLIMIT_NOFILE) X(RLIMIT_SBSIZE) X(RLIMIT_VMEM) XEND
309 static struct xlat pathconf_arg[] = {
310 X(_PC_LINK_MAX) X(_PC_MAX_CANON) X(_PC_MAX_INPUT)
311 X(_PC_NAME_MAX) X(_PC_PATH_MAX) X(_PC_PIPE_BUF)
312 X(_PC_CHOWN_RESTRICTED) X(_PC_NO_TRUNC) X(_PC_VDISABLE)
313 X(_PC_ASYNC_IO) X(_PC_PRIO_IO) X(_PC_SYNC_IO)
314 X(_PC_ALLOC_SIZE_MIN) X(_PC_FILESIZEBITS)
315 X(_PC_REC_INCR_XFER_SIZE) X(_PC_REC_MAX_XFER_SIZE)
316 X(_PC_REC_MIN_XFER_SIZE) X(_PC_REC_XFER_ALIGN)
317 X(_PC_SYMLINK_MAX) X(_PC_ACL_EXTENDED) X(_PC_ACL_PATH_MAX)
318 X(_PC_CAP_PRESENT) X(_PC_INF_PRESENT) X(_PC_MAC_PRESENT)
325 /* Searches an xlat array for a value, and returns it if found. Otherwise
326 return a string representation. */
327 char *lookup(struct xlat *xlat, int val, int base)
330 for (; xlat->str != NULL; xlat++)
331 if (xlat->val == val)
335 sprintf(tmp, "0%o", val);
338 sprintf(tmp, "0x%x", val);
341 sprintf(tmp, "%u", val);
344 errx(1,"Unknown lookup base");
350 char *xlookup(struct xlat *xlat, int val)
352 return lookup(xlat, val, 16);
355 /* Searches an xlat array containing bitfield values. Remaining bits
356 set after removing the known ones are printed at the end:
358 char *xlookup_bits(struct xlat *xlat, int val)
360 static char str[512];
364 for (; xlat->str != NULL; xlat++)
366 if ((xlat->val & rem) == xlat->val)
368 /* don't print the "all-bits-zero" string unless all
369 bits are really zero */
370 if (xlat->val == 0 && val != 0)
372 len += sprintf(str + len, "%s|", xlat->str);
376 /* if we have leftover bits or didn't match anything */
378 len += sprintf(str + len, "0x%x", rem);
379 if (len && str[len - 1] == '|')
386 * If/when the list gets big, it might be desirable to do it
387 * as a hash table or binary search.
391 get_syscall(const char *name) {
392 struct syscall *sc = syscalls;
397 if (!strcmp(name, sc->name))
407 * Copy a fixed amount of bytes from the process.
411 get_struct(int procfd, void *offset, void *buf, int len) {
413 if (pread(procfd, buf, len, (uintptr_t)offset) != len)
420 * Copy a string from the process. Note that it is
421 * expected to be a C string, but if max is set, it will
422 * only get that much.
426 get_string(int procfd, void *offset, int max) {
428 int size, len, c, fd;
431 if ((fd = dup(procfd)) == -1)
433 if ((p = fdopen(fd, "r")) == NULL)
435 buf = malloc( size = (max ? max + 1 : 64 ) );
438 if (fseeko(p, (uintptr_t)offset, SEEK_SET) == 0) {
439 while ((c = fgetc(p)) != EOF) {
441 if (c == 0 || len == max)
445 tmp = realloc(buf, size+64);
463 * Converts a syscall argument into a string. Said string is
464 * allocated via malloc(), so needs to be free()'d. The file
465 * descriptor is for the process' memory (via /proc), and is used
466 * to get any data (where the argument is a pointer). sc is
467 * a pointer to the syscall description (see above); args is
468 * an array of all of the system call arguments.
472 print_arg(int fd, struct syscall_args *sc, unsigned long *args, long retval, struct trussinfo *trussinfo) {
475 switch (sc->type & ARG_MASK) {
477 asprintf(&tmp, "0x%lx", args[sc->offset]);
480 asprintf(&tmp, "0%lo", args[sc->offset]);
483 asprintf(&tmp, "%ld", args[sc->offset]);
487 /* NULL-terminated string. */
489 tmp2 = get_string(fd, (void*)args[sc->offset], 0);
490 asprintf(&tmp, "\"%s\"", tmp2);
496 /* Binary block of data that might have printable characters.
497 XXX If type|OUT, assume that the length is the syscall's
498 return value. Otherwise, assume that the length of the block
499 is in the next syscall argument. */
500 int max_string = trussinfo->strsize;
501 char tmp2[max_string+1], *tmp3;
508 len = args[sc->offset + 1];
510 /* Don't print more than max_string characters, to avoid word
511 wrap. If we have to truncate put some ... after the string.
513 if (len > max_string) {
517 if (len && get_struct(fd, (void*)args[sc->offset], &tmp2, len) != -1) {
518 tmp3 = malloc(len * 4 + 1);
520 if (strvisx(tmp3, tmp2, len, VIS_CSTYLE|VIS_TAB|VIS_NL) <= max_string)
525 asprintf(&tmp, "\"%s\"%s", tmp3, truncated?"...":"");
528 asprintf(&tmp, "0x%lx", args[sc->offset]);
536 char *strarray[100]; /* XXX This is ugly. */
538 if (get_struct(fd, (void *)args[sc->offset], (void *)&strarray,
539 sizeof(strarray)) == -1) {
540 err(1, "get_struct %p", (void *)args[sc->offset]);
545 /* Find out how large of a buffer we'll need. */
546 while (strarray[num] != NULL) {
547 string = get_string(fd, (void*)strarray[num], 0);
548 size += strlen(string);
552 size += 4 + (num * 4);
553 tmp = (char *)malloc(size);
556 tmp2 += sprintf(tmp2, " [");
557 for (i = 0; i < num; i++) {
558 string = get_string(fd, (void*)strarray[i], 0);
559 tmp2 += sprintf(tmp2, " \"%s\"%c", string, (i+1 == num) ? ' ' : ',');
562 tmp2 += sprintf(tmp2, "]");
567 asprintf(&tmp, "0x%lx", args[sc->offset]);
572 unsigned long long ll;
573 ll = *(unsigned long long *)(args + sc->offset);
574 asprintf(&tmp, "0x%llx", ll);
579 asprintf(&tmp, "0x%lx", args[sc->offset]);
588 tmp2 = get_string(fd, (void*)args[sc->offset], retval);
589 asprintf(&tmp, "\"%s\"", tmp2);
595 const char *temp = ioctlname(args[sc->offset]);
600 unsigned long arg = args[sc->offset];
601 asprintf(&tmp, "0x%lx { IO%s%s 0x%lx('%c'), %lu, %lu}", arg,
602 arg&IOC_OUT?"R":"", arg&IOC_IN?"W":"",
603 IOCGROUP(arg), isprint(IOCGROUP(arg))?(char)IOCGROUP(arg):'?',
604 arg & 0xFF, IOCPARM_LEN(arg));
611 if (get_struct(fd, (void *)args[sc->offset], &umtx, sizeof(umtx)) != -1)
612 asprintf(&tmp, "{0x%lx}", (long)umtx.u_owner);
614 asprintf(&tmp, "0x%lx", args[sc->offset]);
620 if (get_struct(fd, (void *)args[sc->offset], &ts, sizeof(ts)) != -1)
621 asprintf(&tmp, "{%ld.%09ld}", (long)ts.tv_sec, ts.tv_nsec);
623 asprintf(&tmp, "0x%lx", args[sc->offset]);
629 if (get_struct(fd, (void *)args[sc->offset], &tv, sizeof(tv)) != -1)
630 asprintf(&tmp, "{%ld.%06ld}", (long)tv.tv_sec, tv.tv_usec);
632 asprintf(&tmp, "0x%lx", args[sc->offset]);
637 struct timeval tv[2];
638 if (get_struct(fd, (void *)args[sc->offset], &tv, sizeof(tv)) != -1)
639 asprintf(&tmp, "{%ld.%06ld, %ld.%06ld}",
640 (long)tv[0].tv_sec, tv[0].tv_usec,
641 (long)tv[1].tv_sec, tv[1].tv_usec);
643 asprintf(&tmp, "0x%lx", args[sc->offset]);
648 struct itimerval itv;
649 if (get_struct(fd, (void *)args[sc->offset], &itv, sizeof(itv)) != -1)
650 asprintf(&tmp, "{%ld.%06ld, %ld.%06ld}",
651 (long)itv.it_interval.tv_sec,
652 itv.it_interval.tv_usec,
653 (long)itv.it_value.tv_sec,
654 itv.it_value.tv_usec);
656 asprintf(&tmp, "0x%lx", args[sc->offset]);
662 * XXX: A Pollfd argument expects the /next/ syscall argument to be
663 * the number of fds in the array. This matches the poll syscall.
666 int numfds = args[sc->offset+1];
667 int bytes = sizeof(struct pollfd) * numfds;
668 int i, tmpsize, u, used;
669 const int per_fd = 100;
671 if ((pfd = malloc(bytes)) == NULL)
672 err(1, "Cannot malloc %d bytes for pollfd array", bytes);
673 if (get_struct(fd, (void *)args[sc->offset], pfd, bytes) != -1) {
676 tmpsize = 1 + per_fd * numfds + 2;
677 if ((tmp = malloc(tmpsize)) == NULL)
678 err(1, "Cannot alloc %d bytes for poll output", tmpsize);
681 for (i = 0; i < numfds; i++) {
683 u = snprintf(tmp + used, per_fd,
687 xlookup_bits(poll_flags, pfd[i].events) );
689 used += u < per_fd ? u : per_fd;
694 asprintf(&tmp, "0x%lx", args[sc->offset]);
701 * XXX: A Fd_set argument expects the /first/ syscall argument to be
702 * the number of fds in the array. This matches the select syscall.
705 int numfds = args[0];
706 int bytes = _howmany(numfds, _NFDBITS) * _NFDBITS;
707 int i, tmpsize, u, used;
708 const int per_fd = 20;
710 if ((fds = malloc(bytes)) == NULL)
711 err(1, "Cannot malloc %d bytes for fd_set array", bytes);
712 if (get_struct(fd, (void *)args[sc->offset], fds, bytes) != -1) {
714 tmpsize = 1 + numfds * per_fd + 2;
715 if ((tmp = malloc(tmpsize)) == NULL)
716 err(1, "Cannot alloc %d bytes for fd_set output", tmpsize);
719 for (i = 0; i < numfds; i++) {
720 if (FD_ISSET(i, fds)) {
721 u = snprintf(tmp + used, per_fd, "%d ", i);
723 used += u < per_fd ? u : per_fd;
726 if (tmp[used-1] == ' ')
731 asprintf(&tmp, "0x%lx", args[sc->offset]);
739 sig = args[sc->offset];
742 asprintf(&tmp, "%ld", sig);
751 sig = args[sc->offset];
752 if (get_struct(fd, (void *)args[sc->offset], (void *)&ss,
755 asprintf(&tmp, "0x%lx", args[sc->offset]);
758 tmp = malloc(sys_nsig * 8); /* 7 bytes avg per signal name */
760 for (i = 1; i < sys_nsig; i++)
762 if (sigismember(&ss, i))
764 used += sprintf(tmp + used, "%s|", strsig(i));
775 switch (args[sc->offset]) {
776 #define S(a) case a: tmp = strdup(#a); break;
783 asprintf(&tmp, "0x%lx", args[sc->offset]);
789 /* XXX output depends on the value of the previous argument */
790 switch (args[sc->offset-1]) {
792 tmp = strdup(xlookup_bits(fcntlfd_arg, args[sc->offset]));
795 tmp = strdup(xlookup_bits(fcntlfl_arg, args[sc->offset]));
803 asprintf(&tmp, "0x%lx", args[sc->offset]);
809 tmp = strdup(xlookup_bits(open_flags, args[sc->offset]));
812 tmp = strdup(xlookup(fcntl_arg, args[sc->offset]));
815 tmp = strdup(xlookup_bits(mprot_flags, args[sc->offset]));
818 tmp = strdup(xlookup_bits(mmap_flags, args[sc->offset]));
821 tmp = strdup(xlookup(whence_arg, args[sc->offset]));
824 tmp = strdup(xlookup(sockdomain_arg, args[sc->offset]));
827 tmp = strdup(xlookup(socktype_arg, args[sc->offset]));
830 tmp = strdup(xlookup(shutdown_arg, args[sc->offset]));
833 tmp = strdup(xlookup(resource_arg, args[sc->offset]));
836 tmp = strdup(xlookup(pathconf_arg, args[sc->offset]));
840 struct sockaddr_storage ss;
842 struct sockaddr_in *lsin;
843 struct sockaddr_in6 *lsin6;
844 struct sockaddr_un *sun;
850 if (args[sc->offset] == 0) {
851 asprintf(&tmp, "NULL");
855 /* yuck: get ss_len */
856 if (get_struct(fd, (void *)args[sc->offset], (void *)&ss,
857 sizeof(ss.ss_len) + sizeof(ss.ss_family)) == -1)
858 err(1, "get_struct %p", (void *)args[sc->offset]);
860 * If ss_len is 0, then try to guess from the sockaddr type.
861 * AF_UNIX may be initialized incorrectly, so always frob
862 * it by using the "right" size.
864 if (ss.ss_len == 0 || ss.ss_family == AF_UNIX) {
865 switch (ss.ss_family) {
867 ss.ss_len = sizeof(*lsin);
870 ss.ss_len = sizeof(*sun);
877 if (get_struct(fd, (void *)args[sc->offset], (void *)&ss, ss.ss_len)
879 err(2, "get_struct %p", (void *)args[sc->offset]);
882 switch (ss.ss_family) {
884 lsin = (struct sockaddr_in *)&ss;
885 inet_ntop(AF_INET, &lsin->sin_addr, addr, sizeof addr);
886 asprintf(&tmp, "{ AF_INET %s:%d }", addr, htons(lsin->sin_port));
889 lsin6 = (struct sockaddr_in6 *)&ss;
890 inet_ntop(AF_INET6, &lsin6->sin6_addr, addr, sizeof addr);
891 asprintf(&tmp, "{ AF_INET6 [%s]:%d }", addr, htons(lsin6->sin6_port));
894 sun = (struct sockaddr_un *)&ss;
895 asprintf(&tmp, "{ AF_UNIX \"%s\" }", sun->sun_path);
898 sa = (struct sockaddr *)&ss;
899 asprintf(&tmp, "{ sa_len = %d, sa_family = %d, sa_data = {%n%*s } }",
900 (int)sa->sa_len, (int)sa->sa_family, &i,
901 6 * (int)(sa->sa_len - ((char *)&sa->sa_data - (char *)sa)), "");
904 for (q = (u_char *)&sa->sa_data; q < (u_char *)sa + sa->sa_len; q++)
905 p += sprintf(p, " %#02x,", *q);
916 if (get_struct(fd, (void *)args[sc->offset], &sa, sizeof(sa)) != -1) {
918 asprintf(&hand, "%p", sa.sa_handler);
919 if (sa.sa_handler == SIG_DFL)
921 else if (sa.sa_handler == SIG_IGN)
926 asprintf(&tmp, "{ %s %s ss_t }",
928 xlookup_bits(sigaction_flags, sa.sa_flags));
931 asprintf(&tmp, "0x%lx", args[sc->offset]);
938 * XXX XXX: the size of the array is determined by either the
939 * next syscall argument, or by the syscall returnvalue,
940 * depending on which argument number we are. This matches the
941 * kevent syscall, but luckily that's the only syscall that uses
947 int i, tmpsize, u, used;
948 const int per_ke = 100;
951 numevents = args[sc->offset+1];
952 else if (sc->offset == 3 && retval != -1)
956 bytes = sizeof(struct kevent) * numevents;
957 if ((ke = malloc(bytes)) == NULL)
958 err(1, "Cannot malloc %d bytes for kevent array", bytes);
959 if (numevents >= 0 && get_struct(fd, (void *)args[sc->offset], ke, bytes) != -1) {
961 tmpsize = 1 + per_ke * numevents + 2;
962 if ((tmp = malloc(tmpsize)) == NULL)
963 err(1, "Cannot alloc %d bytes for kevent output", tmpsize);
966 for (i = 0; i < numevents; i++) {
967 u = snprintf(tmp + used, per_ke,
968 "%s%p,%s,%s,%d,%p,%p",
971 xlookup(kevent_filters, ke[i].filter),
972 xlookup_bits(kevent_flags, ke[i].flags),
975 (void *)ke[i].udata);
977 used += u < per_ke ? u : per_ke;
982 asprintf(&tmp, "0x%lx", args[sc->offset]);
989 if (get_struct(fd, (void *)args[sc->offset], &st, sizeof(st)) != -1) {
991 strmode(st.st_mode, mode);
992 asprintf(&tmp, "{mode=%s,inode=%jd,size=%jd,blksize=%ld}",
994 (intmax_t)st.st_ino,(intmax_t)st.st_size,(long)st.st_blksize);
996 asprintf(&tmp, "0x%lx", args[sc->offset]);
1002 if (get_struct(fd, (void *)args[sc->offset], &ru, sizeof(ru)) != -1)
1003 asprintf(&tmp, "{u=%ld.%06ld,s=%ld.%06ld,in=%ld,out=%ld}",
1004 (long)ru.ru_utime.tv_sec, ru.ru_utime.tv_usec,
1005 (long)ru.ru_stime.tv_sec, ru.ru_stime.tv_usec,
1006 ru.ru_inblock, ru.ru_oublock);
1008 asprintf(&tmp, "0x%lx", args[sc->offset]);
1014 if (get_struct(fd, (void *)args[sc->offset], &rl, sizeof(rl)) != -1)
1015 asprintf(&tmp, "{cur=%ju,max=%ju}",
1016 rl.rlim_cur, rl.rlim_max);
1018 asprintf(&tmp, "0x%lx", args[sc->offset]);
1022 errx(1, "Invalid argument type %d\n", sc->type & ARG_MASK);
1030 * Print (to outfile) the system call and its arguments. Note that
1031 * nargs is the number of arguments (not the number of words; this is
1032 * potentially confusing, I know).
1036 print_syscall(struct trussinfo *trussinfo, const char *name, int nargs, char **s_args) {
1039 struct timespec timediff;
1041 if (trussinfo->flags & FOLLOWFORKS)
1042 len += fprintf(trussinfo->outfile, "%5d: ", trussinfo->pid);
1044 if (name != NULL && (!strcmp(name, "execve") || !strcmp(name, "exit"))) {
1045 clock_gettime(CLOCK_REALTIME, &trussinfo->after);
1048 if (trussinfo->flags & ABSOLUTETIMESTAMPS) {
1049 timespecsubt(&trussinfo->after, &trussinfo->start_time, &timediff);
1050 len += fprintf(trussinfo->outfile, "%ld.%09ld ",
1051 (long)timediff.tv_sec, timediff.tv_nsec);
1054 if (trussinfo->flags & RELATIVETIMESTAMPS) {
1055 timespecsubt(&trussinfo->after, &trussinfo->before, &timediff);
1056 len += fprintf(trussinfo->outfile, "%ld.%09ld ",
1057 (long)timediff.tv_sec, timediff.tv_nsec);
1060 len += fprintf(trussinfo->outfile, "%s(", name);
1062 for (i = 0; i < nargs; i++) {
1064 len += fprintf(trussinfo->outfile, "%s", s_args[i]);
1066 len += fprintf(trussinfo->outfile, "<missing argument>");
1067 len += fprintf(trussinfo->outfile, "%s", i < (nargs - 1) ? "," : "");
1069 len += fprintf(trussinfo->outfile, ")");
1070 for (i = 0; i < 6 - (len / 8); i++)
1071 fprintf(trussinfo->outfile, "\t");
1075 print_syscall_ret(struct trussinfo *trussinfo, const char *name, int nargs,
1076 char **s_args, int errorp, long retval)
1078 print_syscall(trussinfo, name, nargs, s_args);
1079 fflush(trussinfo->outfile);
1081 fprintf(trussinfo->outfile, " ERR#%ld '%s'\n", retval, strerror(retval));
1083 fprintf(trussinfo->outfile, " = %ld (0x%lx)\n", retval, retval);