syscalls.c revision 304150
1/* 2 * Copyright 1997 Sean Eric Fagan 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 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 17 * permission. 18 * 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 29 * SUCH DAMAGE. 30 */ 31 32#include <sys/cdefs.h> 33__FBSDID("$FreeBSD: stable/10/usr.bin/truss/syscalls.c 304150 2016-08-15 11:54:29Z bdrewery $"); 34 35/* 36 * This file has routines used to print out system calls and their 37 * arguments. 38 */ 39 40#include <sys/types.h> 41#include <sys/event.h> 42#include <sys/ioccom.h> 43#include <sys/mman.h> 44#include <sys/mount.h> 45#include <sys/procctl.h> 46#include <sys/ptrace.h> 47#include <sys/resource.h> 48#include <sys/socket.h> 49#include <sys/stat.h> 50#include <machine/atomic.h> 51#include <errno.h> 52#include <sys/umtx.h> 53#include <sys/un.h> 54#include <sys/wait.h> 55#include <machine/sysarch.h> 56#include <netinet/in.h> 57#include <arpa/inet.h> 58 59#include <ctype.h> 60#include <err.h> 61#include <fcntl.h> 62#include <poll.h> 63#include <signal.h> 64#include <stddef.h> 65#include <stdint.h> 66#include <stdio.h> 67#include <stdlib.h> 68#include <string.h> 69#include <time.h> 70#include <unistd.h> 71#include <vis.h> 72 73#include "truss.h" 74#include "extern.h" 75#include "syscall.h" 76 77/* 64-bit alignment on 32-bit platforms. */ 78#if !defined(__LP64__) && defined(__powerpc__) 79#define QUAD_ALIGN 1 80#else 81#define QUAD_ALIGN 0 82#endif 83 84/* Number of slots needed for a 64-bit argument. */ 85#ifdef __LP64__ 86#define QUAD_SLOTS 1 87#else 88#define QUAD_SLOTS 2 89#endif 90 91/* 92 * This should probably be in its own file, sorted alphabetically. 93 */ 94static struct syscall decoded_syscalls[] = { 95 /* Native ABI */ 96 { .name = "__getcwd", .ret_type = 1, .nargs = 2, 97 .args = { { Name | OUT, 0 }, { Int, 1 } } }, 98 { .name = "_umtx_lock", .ret_type = 1, .nargs = 1, 99 .args = { { Umtx, 0 } } }, 100 { .name = "_umtx_op", .ret_type = 1, .nargs = 5, 101 .args = { { Ptr, 0 }, { Umtxop, 1 }, { LongHex, 2 }, { Ptr, 3 }, 102 { Ptr, 4 } } }, 103 { .name = "_umtx_unlock", .ret_type = 1, .nargs = 1, 104 .args = { { Umtx, 0 } } }, 105 { .name = "accept", .ret_type = 1, .nargs = 3, 106 .args = { { Int, 0 }, { Sockaddr | OUT, 1 }, { Ptr | OUT, 2 } } }, 107 { .name = "access", .ret_type = 1, .nargs = 2, 108 .args = { { Name | IN, 0 }, { Accessmode, 1 } } }, 109 { .name = "bind", .ret_type = 1, .nargs = 3, 110 .args = { { Int, 0 }, { Sockaddr | IN, 1 }, { Int, 2 } } }, 111 { .name = "bindat", .ret_type = 1, .nargs = 4, 112 .args = { { Atfd, 0 }, { Int, 1 }, { Sockaddr | IN, 2 }, 113 { Int, 3 } } }, 114 { .name = "break", .ret_type = 1, .nargs = 1, 115 .args = { { Ptr, 0 } } }, 116 { .name = "chdir", .ret_type = 1, .nargs = 1, 117 .args = { { Name, 0 } } }, 118 { .name = "chflags", .ret_type = 1, .nargs = 2, 119 .args = { { Name | IN, 0 }, { Hex, 1 } } }, 120 { .name = "chmod", .ret_type = 1, .nargs = 2, 121 .args = { { Name, 0 }, { Octal, 1 } } }, 122 { .name = "chown", .ret_type = 1, .nargs = 3, 123 .args = { { Name, 0 }, { Int, 1 }, { Int, 2 } } }, 124 { .name = "chroot", .ret_type = 1, .nargs = 1, 125 .args = { { Name, 0 } } }, 126 { .name = "clock_gettime", .ret_type = 1, .nargs = 2, 127 .args = { { Int, 0 }, { Timespec | OUT, 1 } } }, 128 { .name = "close", .ret_type = 1, .nargs = 1, 129 .args = { { Int, 0 } } }, 130 { .name = "connect", .ret_type = 1, .nargs = 3, 131 .args = { { Int, 0 }, { Sockaddr | IN, 1 }, { Int, 2 } } }, 132 { .name = "connectat", .ret_type = 1, .nargs = 4, 133 .args = { { Atfd, 0 }, { Int, 1 }, { Sockaddr | IN, 2 }, 134 { Int, 3 } } }, 135 { .name = "eaccess", .ret_type = 1, .nargs = 2, 136 .args = { { Name | IN, 0 }, { Accessmode, 1 } } }, 137 { .name = "execve", .ret_type = 1, .nargs = 3, 138 .args = { { Name | IN, 0 }, { ExecArgs | IN, 1 }, 139 { ExecEnv | IN, 2 } } }, 140 { .name = "exit", .ret_type = 0, .nargs = 1, 141 .args = { { Hex, 0 } } }, 142 { .name = "faccessat", .ret_type = 1, .nargs = 4, 143 .args = { { Atfd, 0 }, { Name | IN, 1 }, { Accessmode, 2 }, 144 { Atflags, 3 } } }, 145 { .name = "fchmod", .ret_type = 1, .nargs = 2, 146 .args = { { Int, 0 }, { Octal, 1 } } }, 147 { .name = "fchmodat", .ret_type = 1, .nargs = 4, 148 .args = { { Atfd, 0 }, { Name, 1 }, { Octal, 2 }, { Atflags, 3 } } }, 149 { .name = "fchown", .ret_type = 1, .nargs = 3, 150 .args = { { Int, 0 }, { Int, 1 }, { Int, 2 } } }, 151 { .name = "fchownat", .ret_type = 1, .nargs = 5, 152 .args = { { Atfd, 0 }, { Name, 1 }, { Int, 2 }, { Int, 3 }, 153 { Atflags, 4 } } }, 154 { .name = "fcntl", .ret_type = 1, .nargs = 3, 155 .args = { { Int, 0 }, { Fcntl, 1 }, { Fcntlflag, 2 } } }, 156 { .name = "fstat", .ret_type = 1, .nargs = 2, 157 .args = { { Int, 0 }, { Stat | OUT, 1 } } }, 158 { .name = "fstatat", .ret_type = 1, .nargs = 4, 159 .args = { { Atfd, 0 }, { Name | IN, 1 }, { Stat | OUT, 2 }, 160 { Atflags, 3 } } }, 161 { .name = "fstatfs", .ret_type = 1, .nargs = 2, 162 .args = { { Int, 0 }, { StatFs | OUT, 1 } } }, 163 { .name = "ftruncate", .ret_type = 1, .nargs = 2, 164 .args = { { Int | IN, 0 }, { QuadHex | IN, 1 + QUAD_ALIGN } } }, 165 { .name = "futimens", .ret_type = 1, .nargs = 2, 166 .args = { { Int, 0 }, { Timespec2 | IN, 1 } } }, 167 { .name = "futimes", .ret_type = 1, .nargs = 2, 168 .args = { { Int, 0 }, { Timeval2 | IN, 1 } } }, 169 { .name = "futimesat", .ret_type = 1, .nargs = 3, 170 .args = { { Atfd, 0 }, { Name | IN, 1 }, { Timeval2 | IN, 2 } } }, 171 { .name = "getitimer", .ret_type = 1, .nargs = 2, 172 .args = { { Int, 0 }, { Itimerval | OUT, 2 } } }, 173 { .name = "getpeername", .ret_type = 1, .nargs = 3, 174 .args = { { Int, 0 }, { Sockaddr | OUT, 1 }, { Ptr | OUT, 2 } } }, 175 { .name = "getpgid", .ret_type = 1, .nargs = 1, 176 .args = { { Int, 0 } } }, 177 { .name = "getrlimit", .ret_type = 1, .nargs = 2, 178 .args = { { Resource, 0 }, { Rlimit | OUT, 1 } } }, 179 { .name = "getrusage", .ret_type = 1, .nargs = 2, 180 .args = { { Int, 0 }, { Rusage | OUT, 1 } } }, 181 { .name = "getsid", .ret_type = 1, .nargs = 1, 182 .args = { { Int, 0 } } }, 183 { .name = "getsockname", .ret_type = 1, .nargs = 3, 184 .args = { { Int, 0 }, { Sockaddr | OUT, 1 }, { Ptr | OUT, 2 } } }, 185 { .name = "gettimeofday", .ret_type = 1, .nargs = 2, 186 .args = { { Timeval | OUT, 0 }, { Ptr, 1 } } }, 187 { .name = "ioctl", .ret_type = 1, .nargs = 3, 188 .args = { { Int, 0 }, { Ioctl, 1 }, { Hex, 2 } } }, 189 { .name = "kevent", .ret_type = 1, .nargs = 6, 190 .args = { { Int, 0 }, { Kevent, 1 }, { Int, 2 }, { Kevent | OUT, 3 }, 191 { Int, 4 }, { Timespec, 5 } } }, 192 { .name = "kill", .ret_type = 1, .nargs = 2, 193 .args = { { Int | IN, 0 }, { Signal | IN, 1 } } }, 194 { .name = "kldfind", .ret_type = 1, .nargs = 1, 195 .args = { { Name | IN, 0 } } }, 196 { .name = "kldfirstmod", .ret_type = 1, .nargs = 1, 197 .args = { { Int, 0 } } }, 198 { .name = "kldload", .ret_type = 1, .nargs = 1, 199 .args = { { Name | IN, 0 } } }, 200 { .name = "kldnext", .ret_type = 1, .nargs = 1, 201 .args = { { Int, 0 } } }, 202 { .name = "kldstat", .ret_type = 1, .nargs = 2, 203 .args = { { Int, 0 }, { Ptr, 1 } } }, 204 { .name = "kldunload", .ret_type = 1, .nargs = 1, 205 .args = { { Int, 0 } } }, 206 { .name = "kse_release", .ret_type = 0, .nargs = 1, 207 .args = { { Timespec, 0 } } }, 208 { .name = "lchflags", .ret_type = 1, .nargs = 2, 209 .args = { { Name | IN, 0 }, { Hex, 1 } } }, 210 { .name = "lchmod", .ret_type = 1, .nargs = 2, 211 .args = { { Name, 0 }, { Octal, 1 } } }, 212 { .name = "lchown", .ret_type = 1, .nargs = 3, 213 .args = { { Name, 0 }, { Int, 1 }, { Int, 2 } } }, 214 { .name = "link", .ret_type = 1, .nargs = 2, 215 .args = { { Name, 0 }, { Name, 1 } } }, 216 { .name = "linkat", .ret_type = 1, .nargs = 5, 217 .args = { { Atfd, 0 }, { Name, 1 }, { Atfd, 2 }, { Name, 3 }, 218 { Atflags, 4 } } }, 219 { .name = "lseek", .ret_type = 2, .nargs = 3, 220 .args = { { Int, 0 }, { QuadHex, 1 + QUAD_ALIGN }, 221 { Whence, 1 + QUAD_SLOTS + QUAD_ALIGN } } }, 222 { .name = "lstat", .ret_type = 1, .nargs = 2, 223 .args = { { Name | IN, 0 }, { Stat | OUT, 1 } } }, 224 { .name = "lutimes", .ret_type = 1, .nargs = 2, 225 .args = { { Name | IN, 0 }, { Timeval2 | IN, 1 } } }, 226 { .name = "mkdir", .ret_type = 1, .nargs = 2, 227 .args = { { Name, 0 }, { Octal, 1 } } }, 228 { .name = "mkdirat", .ret_type = 1, .nargs = 3, 229 .args = { { Atfd, 0 }, { Name, 1 }, { Octal, 2 } } }, 230 { .name = "mkfifo", .ret_type = 1, .nargs = 2, 231 .args = { { Name, 0 }, { Octal, 1 } } }, 232 { .name = "mkfifoat", .ret_type = 1, .nargs = 3, 233 .args = { { Atfd, 0 }, { Name, 1 }, { Octal, 2 } } }, 234 { .name = "mknod", .ret_type = 1, .nargs = 3, 235 .args = { { Name, 0 }, { Octal, 1 }, { Int, 2 } } }, 236 { .name = "mknodat", .ret_type = 1, .nargs = 4, 237 .args = { { Atfd, 0 }, { Name, 1 }, { Octal, 2 }, { Int, 3 } } }, 238 { .name = "mmap", .ret_type = 1, .nargs = 6, 239 .args = { { Ptr, 0 }, { Int, 1 }, { Mprot, 2 }, { Mmapflags, 3 }, 240 { Int, 4 }, { QuadHex, 5 + QUAD_ALIGN } } }, 241 { .name = "modfind", .ret_type = 1, .nargs = 1, 242 .args = { { Name | IN, 0 } } }, 243 { .name = "mount", .ret_type = 1, .nargs = 4, 244 .args = { { Name, 0 }, { Name, 1 }, { Int, 2 }, { Ptr, 3 } } }, 245 { .name = "mprotect", .ret_type = 1, .nargs = 3, 246 .args = { { Ptr, 0 }, { Int, 1 }, { Mprot, 2 } } }, 247 { .name = "munmap", .ret_type = 1, .nargs = 2, 248 .args = { { Ptr, 0 }, { Int, 1 } } }, 249 { .name = "nanosleep", .ret_type = 1, .nargs = 1, 250 .args = { { Timespec, 0 } } }, 251 { .name = "open", .ret_type = 1, .nargs = 3, 252 .args = { { Name | IN, 0 }, { Open, 1 }, { Octal, 2 } } }, 253 { .name = "openat", .ret_type = 1, .nargs = 4, 254 .args = { { Atfd, 0 }, { Name | IN, 1 }, { Open, 2 }, 255 { Octal, 3 } } }, 256 { .name = "pathconf", .ret_type = 1, .nargs = 2, 257 .args = { { Name | IN, 0 }, { Pathconf, 1 } } }, 258 { .name = "pipe", .ret_type = 1, .nargs = 1, 259 .args = { { PipeFds | OUT, 0 } } }, 260 { .name = "pipe2", .ret_type = 1, .nargs = 2, 261 .args = { { Ptr, 0 }, { Open, 1 } } }, 262 { .name = "poll", .ret_type = 1, .nargs = 3, 263 .args = { { Pollfd, 0 }, { Int, 1 }, { Int, 2 } } }, 264 { .name = "posix_openpt", .ret_type = 1, .nargs = 1, 265 .args = { { Open, 0 } } }, 266 { .name = "procctl", .ret_type = 1, .nargs = 4, 267 .args = { { Idtype, 0 }, { Quad, 1 + QUAD_ALIGN }, 268 { Procctl, 1 + QUAD_ALIGN + QUAD_SLOTS }, 269 { Ptr, 2 + QUAD_ALIGN + QUAD_SLOTS } } }, 270 { .name = "read", .ret_type = 1, .nargs = 3, 271 .args = { { Int, 0 }, { BinString | OUT, 1 }, { Int, 2 } } }, 272 { .name = "readlink", .ret_type = 1, .nargs = 3, 273 .args = { { Name, 0 }, { Readlinkres | OUT, 1 }, { Int, 2 } } }, 274 { .name = "readlinkat", .ret_type = 1, .nargs = 4, 275 .args = { { Atfd, 0 }, { Name, 1 }, { Readlinkres | OUT, 2 }, 276 { Int, 3 } } }, 277 { .name = "recvfrom", .ret_type = 1, .nargs = 6, 278 .args = { { Int, 0 }, { BinString | OUT, 1 }, { Int, 2 }, { Hex, 3 }, 279 { Sockaddr | OUT, 4 }, { Ptr | OUT, 5 } } }, 280 { .name = "rename", .ret_type = 1, .nargs = 2, 281 .args = { { Name, 0 }, { Name, 1 } } }, 282 { .name = "renameat", .ret_type = 1, .nargs = 4, 283 .args = { { Atfd, 0 }, { Name, 1 }, { Atfd, 2 }, { Name, 3 } } }, 284 { .name = "rfork", .ret_type = 1, .nargs = 1, 285 .args = { { Rforkflags, 0 } } }, 286 { .name = "rmdir", .ret_type = 1, .nargs = 1, 287 .args = { { Name, 0 } } }, 288 { .name = "select", .ret_type = 1, .nargs = 5, 289 .args = { { Int, 0 }, { Fd_set, 1 }, { Fd_set, 2 }, { Fd_set, 3 }, 290 { Timeval, 4 } } }, 291 { .name = "sendto", .ret_type = 1, .nargs = 6, 292 .args = { { Int, 0 }, { BinString | IN, 1 }, { Int, 2 }, { Hex, 3 }, 293 { Sockaddr | IN, 4 }, { Ptr | IN, 5 } } }, 294 { .name = "setitimer", .ret_type = 1, .nargs = 3, 295 .args = { { Int, 0 }, { Itimerval, 1 }, { Itimerval | OUT, 2 } } }, 296 { .name = "setrlimit", .ret_type = 1, .nargs = 2, 297 .args = { { Resource, 0 }, { Rlimit | IN, 1 } } }, 298 { .name = "shutdown", .ret_type = 1, .nargs = 2, 299 .args = { { Int, 0 }, { Shutdown, 1 } } }, 300 { .name = "sigaction", .ret_type = 1, .nargs = 3, 301 .args = { { Signal, 0 }, { Sigaction | IN, 1 }, 302 { Sigaction | OUT, 2 } } }, 303 { .name = "sigpending", .ret_type = 1, .nargs = 1, 304 .args = { { Sigset | OUT, 0 } } }, 305 { .name = "sigprocmask", .ret_type = 1, .nargs = 3, 306 .args = { { Sigprocmask, 0 }, { Sigset, 1 }, { Sigset | OUT, 2 } } }, 307 { .name = "sigqueue", .ret_type = 1, .nargs = 3, 308 .args = { { Int, 0 }, { Signal, 1 }, { LongHex, 2 } } }, 309 { .name = "sigreturn", .ret_type = 1, .nargs = 1, 310 .args = { { Ptr, 0 } } }, 311 { .name = "sigsuspend", .ret_type = 1, .nargs = 1, 312 .args = { { Sigset | IN, 0 } } }, 313 { .name = "sigtimedwait", .ret_type = 1, .nargs = 3, 314 .args = { { Sigset | IN, 0 }, { Ptr, 1 }, { Timespec | IN, 2 } } }, 315 { .name = "sigwait", .ret_type = 1, .nargs = 2, 316 .args = { { Sigset | IN, 0 }, { Ptr, 1 } } }, 317 { .name = "sigwaitinfo", .ret_type = 1, .nargs = 2, 318 .args = { { Sigset | IN, 0 }, { Ptr, 1 } } }, 319 { .name = "socket", .ret_type = 1, .nargs = 3, 320 .args = { { Sockdomain, 0 }, { Socktype, 1 }, { Int, 2 } } }, 321 { .name = "stat", .ret_type = 1, .nargs = 2, 322 .args = { { Name | IN, 0 }, { Stat | OUT, 1 } } }, 323 { .name = "statfs", .ret_type = 1, .nargs = 2, 324 .args = { { Name | IN, 0 }, { StatFs | OUT, 1 } } }, 325 { .name = "symlink", .ret_type = 1, .nargs = 2, 326 .args = { { Name, 0 }, { Name, 1 } } }, 327 { .name = "symlinkat", .ret_type = 1, .nargs = 3, 328 .args = { { Name, 0 }, { Atfd, 1 }, { Name, 2 } } }, 329 { .name = "sysarch", .ret_type = 1, .nargs = 2, 330 .args = { { Sysarch, 0 }, { Ptr, 1 } } }, 331 { .name = "thr_kill", .ret_type = 1, .nargs = 2, 332 .args = { { Long, 0 }, { Signal, 1 } } }, 333 { .name = "thr_self", .ret_type = 1, .nargs = 1, 334 .args = { { Ptr, 0 } } }, 335 { .name = "truncate", .ret_type = 1, .nargs = 2, 336 .args = { { Name | IN, 0 }, { QuadHex | IN, 1 + QUAD_ALIGN } } }, 337#if 0 338 /* Does not exist */ 339 { .name = "umount", .ret_type = 1, .nargs = 2, 340 .args = { { Name, 0 }, { Int, 2 } } }, 341#endif 342 { .name = "unlink", .ret_type = 1, .nargs = 1, 343 .args = { { Name, 0 } } }, 344 { .name = "unlinkat", .ret_type = 1, .nargs = 3, 345 .args = { { Atfd, 0 }, { Name, 1 }, { Atflags, 2 } } }, 346 { .name = "unmount", .ret_type = 1, .nargs = 2, 347 .args = { { Name, 0 }, { Int, 1 } } }, 348 { .name = "utimensat", .ret_type = 1, .nargs = 4, 349 .args = { { Atfd, 0 }, { Name | IN, 1 }, { Timespec2 | IN, 2 }, 350 { Atflags, 3 } } }, 351 { .name = "utimes", .ret_type = 1, .nargs = 2, 352 .args = { { Name | IN, 0 }, { Timeval2 | IN, 1 } } }, 353 { .name = "wait4", .ret_type = 1, .nargs = 4, 354 .args = { { Int, 0 }, { ExitStatus | OUT, 1 }, { Waitoptions, 2 }, 355 { Rusage | OUT, 3 } } }, 356 { .name = "wait6", .ret_type = 1, .nargs = 6, 357 .args = { { Idtype, 0 }, { Quad, 1 + QUAD_ALIGN }, 358 { ExitStatus | OUT, 1 + QUAD_ALIGN + QUAD_SLOTS }, 359 { Waitoptions, 2 + QUAD_ALIGN + QUAD_SLOTS }, 360 { Rusage | OUT, 3 + QUAD_ALIGN + QUAD_SLOTS }, 361 { Ptr, 4 + QUAD_ALIGN + QUAD_SLOTS } } }, 362 { .name = "write", .ret_type = 1, .nargs = 3, 363 .args = { { Int, 0 }, { BinString | IN, 1 }, { Int, 2 } } }, 364 365 /* Linux ABI */ 366 { .name = "linux_access", .ret_type = 1, .nargs = 2, 367 .args = { { Name, 0 }, { Accessmode, 1 } } }, 368 { .name = "linux_execve", .ret_type = 1, .nargs = 3, 369 .args = { { Name | IN, 0 }, { ExecArgs | IN, 1 }, 370 { ExecEnv | IN, 2 } } }, 371 { .name = "linux_lseek", .ret_type = 2, .nargs = 3, 372 .args = { { Int, 0 }, { Int, 1 }, { Whence, 2 } } }, 373 { .name = "linux_mkdir", .ret_type = 1, .nargs = 2, 374 .args = { { Name | IN, 0 }, { Int, 1 } } }, 375 { .name = "linux_newfstat", .ret_type = 1, .nargs = 2, 376 .args = { { Int, 0 }, { Ptr | OUT, 1 } } }, 377 { .name = "linux_newstat", .ret_type = 1, .nargs = 2, 378 .args = { { Name | IN, 0 }, { Ptr | OUT, 1 } } }, 379 { .name = "linux_open", .ret_type = 1, .nargs = 3, 380 .args = { { Name, 0 }, { Hex, 1 }, { Octal, 2 } } }, 381 { .name = "linux_readlink", .ret_type = 1, .nargs = 3, 382 .args = { { Name, 0 }, { Name | OUT, 1 }, { Int, 2 } } }, 383 { .name = "linux_socketcall", .ret_type = 1, .nargs = 2, 384 .args = { { Int, 0 }, { LinuxSockArgs, 1 } } }, 385 { .name = "linux_stat64", .ret_type = 1, .nargs = 3, 386 .args = { { Name | IN, 0 }, { Ptr | OUT, 1 }, { Ptr | IN, 1 } } }, 387 388 { .name = 0 }, 389}; 390static STAILQ_HEAD(, syscall) syscalls; 391 392/* Xlat idea taken from strace */ 393struct xlat { 394 int val; 395 const char *str; 396}; 397 398#define X(a) { a, #a }, 399#define XEND { 0, NULL } 400 401static struct xlat kevent_filters[] = { 402 X(EVFILT_READ) X(EVFILT_WRITE) X(EVFILT_AIO) X(EVFILT_VNODE) 403 X(EVFILT_PROC) X(EVFILT_SIGNAL) X(EVFILT_TIMER) 404 X(EVFILT_FS) X(EVFILT_LIO) X(EVFILT_USER) XEND 405}; 406 407static struct xlat kevent_flags[] = { 408 X(EV_ADD) X(EV_DELETE) X(EV_ENABLE) X(EV_DISABLE) X(EV_ONESHOT) 409 X(EV_CLEAR) X(EV_RECEIPT) X(EV_DISPATCH) 410 X(EV_DROP) X(EV_FLAG1) X(EV_ERROR) X(EV_EOF) XEND 411}; 412 413static struct xlat kevent_user_ffctrl[] = { 414 X(NOTE_FFNOP) X(NOTE_FFAND) X(NOTE_FFOR) X(NOTE_FFCOPY) 415 XEND 416}; 417 418static struct xlat kevent_rdwr_fflags[] = { 419 X(NOTE_LOWAT) XEND 420}; 421 422static struct xlat kevent_vnode_fflags[] = { 423 X(NOTE_DELETE) X(NOTE_WRITE) X(NOTE_EXTEND) X(NOTE_ATTRIB) 424 X(NOTE_LINK) X(NOTE_RENAME) X(NOTE_REVOKE) XEND 425}; 426 427static struct xlat kevent_proc_fflags[] = { 428 X(NOTE_EXIT) X(NOTE_FORK) X(NOTE_EXEC) X(NOTE_TRACK) X(NOTE_TRACKERR) 429 X(NOTE_CHILD) XEND 430}; 431 432static struct xlat kevent_timer_fflags[] = { 433 X(NOTE_SECONDS) X(NOTE_MSECONDS) X(NOTE_USECONDS) X(NOTE_NSECONDS) 434 XEND 435}; 436 437static struct xlat poll_flags[] = { 438 X(POLLSTANDARD) X(POLLIN) X(POLLPRI) X(POLLOUT) X(POLLERR) 439 X(POLLHUP) X(POLLNVAL) X(POLLRDNORM) X(POLLRDBAND) 440 X(POLLWRBAND) X(POLLINIGNEOF) XEND 441}; 442 443static struct xlat mmap_flags[] = { 444 X(MAP_SHARED) X(MAP_PRIVATE) X(MAP_FIXED) X(MAP_RENAME) 445 X(MAP_NORESERVE) X(MAP_RESERVED0080) X(MAP_RESERVED0100) 446 X(MAP_HASSEMAPHORE) X(MAP_STACK) X(MAP_NOSYNC) X(MAP_ANON) 447 X(MAP_EXCL) X(MAP_NOCORE) X(MAP_PREFAULT_READ) 448#ifdef MAP_32BIT 449 X(MAP_32BIT) 450#endif 451 XEND 452}; 453 454static struct xlat mprot_flags[] = { 455 X(PROT_NONE) X(PROT_READ) X(PROT_WRITE) X(PROT_EXEC) XEND 456}; 457 458static struct xlat whence_arg[] = { 459 X(SEEK_SET) X(SEEK_CUR) X(SEEK_END) X(SEEK_DATA) X(SEEK_HOLE) XEND 460}; 461 462static struct xlat sigaction_flags[] = { 463 X(SA_ONSTACK) X(SA_RESTART) X(SA_RESETHAND) X(SA_NOCLDSTOP) 464 X(SA_NODEFER) X(SA_NOCLDWAIT) X(SA_SIGINFO) XEND 465}; 466 467static struct xlat fcntl_arg[] = { 468 X(F_DUPFD) X(F_GETFD) X(F_SETFD) X(F_GETFL) X(F_SETFL) 469 X(F_GETOWN) X(F_SETOWN) X(F_OGETLK) X(F_OSETLK) X(F_OSETLKW) 470 X(F_DUP2FD) X(F_GETLK) X(F_SETLK) X(F_SETLKW) X(F_SETLK_REMOTE) 471 X(F_READAHEAD) X(F_RDAHEAD) X(F_DUPFD_CLOEXEC) X(F_DUP2FD_CLOEXEC) 472 XEND 473}; 474 475static struct xlat fcntlfd_arg[] = { 476 X(FD_CLOEXEC) XEND 477}; 478 479static struct xlat fcntlfl_arg[] = { 480 X(O_APPEND) X(O_ASYNC) X(O_FSYNC) X(O_NONBLOCK) X(O_NOFOLLOW) 481 X(FRDAHEAD) X(O_DIRECT) XEND 482}; 483 484static struct xlat sockdomain_arg[] = { 485 X(PF_UNSPEC) X(PF_LOCAL) X(PF_UNIX) X(PF_INET) X(PF_IMPLINK) 486 X(PF_PUP) X(PF_CHAOS) X(PF_NETBIOS) X(PF_ISO) X(PF_OSI) 487 X(PF_ECMA) X(PF_DATAKIT) X(PF_CCITT) X(PF_SNA) X(PF_DECnet) 488 X(PF_DLI) X(PF_LAT) X(PF_HYLINK) X(PF_APPLETALK) X(PF_ROUTE) 489 X(PF_LINK) X(PF_XTP) X(PF_COIP) X(PF_CNT) X(PF_SIP) X(PF_IPX) 490 X(PF_RTIP) X(PF_PIP) X(PF_ISDN) X(PF_KEY) X(PF_INET6) 491 X(PF_NATM) X(PF_ATM) X(PF_NETGRAPH) X(PF_SLOW) X(PF_SCLUSTER) 492 X(PF_ARP) X(PF_BLUETOOTH) X(PF_IEEE80211) X(PF_INET_SDP) 493 X(PF_INET6_SDP) XEND 494}; 495 496static struct xlat socktype_arg[] = { 497 X(SOCK_STREAM) X(SOCK_DGRAM) X(SOCK_RAW) X(SOCK_RDM) 498 X(SOCK_SEQPACKET) XEND 499}; 500 501static struct xlat open_flags[] = { 502 X(O_RDONLY) X(O_WRONLY) X(O_RDWR) X(O_ACCMODE) X(O_NONBLOCK) 503 X(O_APPEND) X(O_SHLOCK) X(O_EXLOCK) X(O_ASYNC) X(O_FSYNC) 504 X(O_NOFOLLOW) X(O_CREAT) X(O_TRUNC) X(O_EXCL) X(O_NOCTTY) 505 X(O_DIRECT) X(O_DIRECTORY) X(O_EXEC) X(O_TTY_INIT) X(O_CLOEXEC) 506 XEND 507}; 508 509static struct xlat shutdown_arg[] = { 510 X(SHUT_RD) X(SHUT_WR) X(SHUT_RDWR) XEND 511}; 512 513static struct xlat resource_arg[] = { 514 X(RLIMIT_CPU) X(RLIMIT_FSIZE) X(RLIMIT_DATA) X(RLIMIT_STACK) 515 X(RLIMIT_CORE) X(RLIMIT_RSS) X(RLIMIT_MEMLOCK) X(RLIMIT_NPROC) 516 X(RLIMIT_NOFILE) X(RLIMIT_SBSIZE) X(RLIMIT_VMEM) X(RLIMIT_NPTS) 517 X(RLIMIT_SWAP) XEND 518}; 519 520static struct xlat pathconf_arg[] = { 521 X(_PC_LINK_MAX) X(_PC_MAX_CANON) X(_PC_MAX_INPUT) 522 X(_PC_NAME_MAX) X(_PC_PATH_MAX) X(_PC_PIPE_BUF) 523 X(_PC_CHOWN_RESTRICTED) X(_PC_NO_TRUNC) X(_PC_VDISABLE) 524 X(_PC_ASYNC_IO) X(_PC_PRIO_IO) X(_PC_SYNC_IO) 525 X(_PC_ALLOC_SIZE_MIN) X(_PC_FILESIZEBITS) 526 X(_PC_REC_INCR_XFER_SIZE) X(_PC_REC_MAX_XFER_SIZE) 527 X(_PC_REC_MIN_XFER_SIZE) X(_PC_REC_XFER_ALIGN) 528 X(_PC_SYMLINK_MAX) X(_PC_ACL_EXTENDED) X(_PC_ACL_PATH_MAX) 529 X(_PC_CAP_PRESENT) X(_PC_INF_PRESENT) X(_PC_MAC_PRESENT) 530 X(_PC_ACL_NFS4) X(_PC_MIN_HOLE_SIZE) XEND 531}; 532 533static struct xlat rfork_flags[] = { 534 X(RFFDG) X(RFPROC) X(RFMEM) X(RFNOWAIT) X(RFCFDG) X(RFTHREAD) 535 X(RFSIGSHARE) X(RFLINUXTHPN) X(RFTSIGZMB) X(RFPPWAIT) XEND 536}; 537 538static struct xlat wait_options[] = { 539 X(WNOHANG) X(WUNTRACED) X(WCONTINUED) X(WNOWAIT) X(WEXITED) 540 X(WTRAPPED) XEND 541}; 542 543static struct xlat idtype_arg[] = { 544 X(P_PID) X(P_PPID) X(P_PGID) X(P_SID) X(P_CID) X(P_UID) X(P_GID) 545 X(P_ALL) X(P_LWPID) X(P_TASKID) X(P_PROJID) X(P_POOLID) X(P_JAILID) 546 X(P_CTID) X(P_CPUID) X(P_PSETID) XEND 547}; 548 549static struct xlat procctl_arg[] = { 550 X(PROC_SPROTECT) X(PROC_REAP_ACQUIRE) X(PROC_REAP_RELEASE) 551 X(PROC_REAP_STATUS) X(PROC_REAP_GETPIDS) X(PROC_REAP_KILL) 552 X(PROC_TRACE_CTL) X(PROC_TRACE_STATUS) XEND 553}; 554 555static struct xlat umtx_ops[] = { 556 X(UMTX_OP_LOCK) X(UMTX_OP_UNLOCK) X(UMTX_OP_WAIT) 557 X(UMTX_OP_WAKE) X(UMTX_OP_MUTEX_TRYLOCK) X(UMTX_OP_MUTEX_LOCK) 558 X(UMTX_OP_MUTEX_UNLOCK) X(UMTX_OP_SET_CEILING) X(UMTX_OP_CV_WAIT) 559 X(UMTX_OP_CV_SIGNAL) X(UMTX_OP_CV_BROADCAST) X(UMTX_OP_WAIT_UINT) 560 X(UMTX_OP_RW_RDLOCK) X(UMTX_OP_RW_WRLOCK) X(UMTX_OP_RW_UNLOCK) 561 X(UMTX_OP_WAIT_UINT_PRIVATE) X(UMTX_OP_WAKE_PRIVATE) 562 X(UMTX_OP_MUTEX_WAIT) X(UMTX_OP_MUTEX_WAKE) X(UMTX_OP_SEM_WAIT) 563 X(UMTX_OP_SEM_WAKE) X(UMTX_OP_NWAKE_PRIVATE) X(UMTX_OP_MUTEX_WAKE2) 564 XEND 565}; 566 567static struct xlat at_flags[] = { 568 X(AT_EACCESS) X(AT_SYMLINK_NOFOLLOW) X(AT_SYMLINK_FOLLOW) 569 X(AT_REMOVEDIR) XEND 570}; 571 572static struct xlat access_modes[] = { 573 X(R_OK) X(W_OK) X(X_OK) XEND 574}; 575 576static struct xlat sysarch_ops[] = { 577#if defined(__i386__) || defined(__amd64__) 578 X(I386_GET_LDT) X(I386_SET_LDT) X(I386_GET_IOPERM) X(I386_SET_IOPERM) 579 X(I386_VM86) X(I386_GET_FSBASE) X(I386_SET_FSBASE) X(I386_GET_GSBASE) 580 X(I386_SET_GSBASE) X(I386_GET_XFPUSTATE) X(AMD64_GET_FSBASE) 581 X(AMD64_SET_FSBASE) X(AMD64_GET_GSBASE) X(AMD64_SET_GSBASE) 582 X(AMD64_GET_XFPUSTATE) 583#endif 584 XEND 585}; 586 587static struct xlat linux_socketcall_ops[] = { 588 X(LINUX_SOCKET) X(LINUX_BIND) X(LINUX_CONNECT) X(LINUX_LISTEN) 589 X(LINUX_ACCEPT) X(LINUX_GETSOCKNAME) X(LINUX_GETPEERNAME) 590 X(LINUX_SOCKETPAIR) X(LINUX_SEND) X(LINUX_RECV) X(LINUX_SENDTO) 591 X(LINUX_RECVFROM) X(LINUX_SHUTDOWN) X(LINUX_SETSOCKOPT) 592 X(LINUX_GETSOCKOPT) X(LINUX_SENDMSG) X(LINUX_RECVMSG) 593 XEND 594}; 595 596static struct xlat sigprocmask_ops[] = { 597 X(SIG_BLOCK) X(SIG_UNBLOCK) X(SIG_SETMASK) 598 XEND 599}; 600 601#undef X 602#undef XEND 603 604/* 605 * Searches an xlat array for a value, and returns it if found. Otherwise 606 * return a string representation. 607 */ 608static const char * 609lookup(struct xlat *xlat, int val, int base) 610{ 611 static char tmp[16]; 612 613 for (; xlat->str != NULL; xlat++) 614 if (xlat->val == val) 615 return (xlat->str); 616 switch (base) { 617 case 8: 618 sprintf(tmp, "0%o", val); 619 break; 620 case 16: 621 sprintf(tmp, "0x%x", val); 622 break; 623 case 10: 624 sprintf(tmp, "%u", val); 625 break; 626 default: 627 errx(1,"Unknown lookup base"); 628 break; 629 } 630 return (tmp); 631} 632 633static const char * 634xlookup(struct xlat *xlat, int val) 635{ 636 637 return (lookup(xlat, val, 16)); 638} 639 640/* 641 * Searches an xlat array containing bitfield values. Remaining bits 642 * set after removing the known ones are printed at the end: 643 * IN|0x400. 644 */ 645static char * 646xlookup_bits(struct xlat *xlat, int val) 647{ 648 int len, rem; 649 static char str[512]; 650 651 len = 0; 652 rem = val; 653 for (; xlat->str != NULL; xlat++) { 654 if ((xlat->val & rem) == xlat->val) { 655 /* 656 * Don't print the "all-bits-zero" string unless all 657 * bits are really zero. 658 */ 659 if (xlat->val == 0 && val != 0) 660 continue; 661 len += sprintf(str + len, "%s|", xlat->str); 662 rem &= ~(xlat->val); 663 } 664 } 665 666 /* 667 * If we have leftover bits or didn't match anything, print 668 * the remainder. 669 */ 670 if (rem || len == 0) 671 len += sprintf(str + len, "0x%x", rem); 672 if (len && str[len - 1] == '|') 673 len--; 674 str[len] = 0; 675 return (str); 676} 677 678void 679init_syscalls(void) 680{ 681 struct syscall *sc; 682 683 STAILQ_INIT(&syscalls); 684 for (sc = decoded_syscalls; sc->name != NULL; sc++) 685 STAILQ_INSERT_HEAD(&syscalls, sc, entries); 686} 687/* 688 * If/when the list gets big, it might be desirable to do it 689 * as a hash table or binary search. 690 */ 691struct syscall * 692get_syscall(const char *name, int nargs) 693{ 694 struct syscall *sc; 695 int i; 696 697 if (name == NULL) 698 return (NULL); 699 STAILQ_FOREACH(sc, &syscalls, entries) 700 if (strcmp(name, sc->name) == 0) 701 return (sc); 702 703 /* It is unknown. Add it into the list. */ 704#if DEBUG 705 fprintf(stderr, "unknown syscall %s -- setting args to %d\n", name, 706 nargs); 707#endif 708 709 sc = calloc(1, sizeof(struct syscall)); 710 sc->name = strdup(name); 711 sc->ret_type = 1; 712 sc->nargs = nargs; 713 for (i = 0; i < nargs; i++) { 714 sc->args[i].offset = i; 715 /* Treat all unknown arguments as LongHex. */ 716 sc->args[i].type = LongHex; 717 } 718 STAILQ_INSERT_HEAD(&syscalls, sc, entries); 719 720 return (sc); 721} 722 723/* 724 * Copy a fixed amount of bytes from the process. 725 */ 726static int 727get_struct(pid_t pid, void *offset, void *buf, int len) 728{ 729 struct ptrace_io_desc iorequest; 730 731 iorequest.piod_op = PIOD_READ_D; 732 iorequest.piod_offs = offset; 733 iorequest.piod_addr = buf; 734 iorequest.piod_len = len; 735 if (ptrace(PT_IO, pid, (caddr_t)&iorequest, 0) < 0) 736 return (-1); 737 return (0); 738} 739 740#define MAXSIZE 4096 741 742/* 743 * Copy a string from the process. Note that it is 744 * expected to be a C string, but if max is set, it will 745 * only get that much. 746 */ 747static char * 748get_string(pid_t pid, void *addr, int max) 749{ 750 struct ptrace_io_desc iorequest; 751 char *buf, *nbuf; 752 size_t offset, size, totalsize; 753 754 offset = 0; 755 if (max) 756 size = max + 1; 757 else { 758 /* Read up to the end of the current page. */ 759 size = PAGE_SIZE - ((uintptr_t)addr % PAGE_SIZE); 760 if (size > MAXSIZE) 761 size = MAXSIZE; 762 } 763 totalsize = size; 764 buf = malloc(totalsize); 765 if (buf == NULL) 766 return (NULL); 767 for (;;) { 768 iorequest.piod_op = PIOD_READ_D; 769 iorequest.piod_offs = (char *)addr + offset; 770 iorequest.piod_addr = buf + offset; 771 iorequest.piod_len = size; 772 if (ptrace(PT_IO, pid, (caddr_t)&iorequest, 0) < 0) { 773 free(buf); 774 return (NULL); 775 } 776 if (memchr(buf + offset, '\0', size) != NULL) 777 return (buf); 778 offset += size; 779 if (totalsize < MAXSIZE && max == 0) { 780 size = MAXSIZE - totalsize; 781 if (size > PAGE_SIZE) 782 size = PAGE_SIZE; 783 nbuf = realloc(buf, totalsize + size); 784 if (nbuf == NULL) { 785 buf[totalsize - 1] = '\0'; 786 return (buf); 787 } 788 buf = nbuf; 789 totalsize += size; 790 } else { 791 buf[totalsize - 1] = '\0'; 792 return (buf); 793 } 794 } 795} 796 797static char * 798strsig2(int sig) 799{ 800 static char tmp[sizeof(int) * 3 + 1]; 801 char *ret; 802 803 ret = strsig(sig); 804 if (ret == NULL) { 805 snprintf(tmp, sizeof(tmp), "%d", sig); 806 ret = tmp; 807 } 808 return (ret); 809} 810 811static void 812print_kevent(FILE *fp, struct kevent *ke, int input) 813{ 814 815 switch (ke->filter) { 816 case EVFILT_READ: 817 case EVFILT_WRITE: 818 case EVFILT_VNODE: 819 case EVFILT_PROC: 820 case EVFILT_TIMER: 821 fprintf(fp, "%ju", (uintmax_t)ke->ident); 822 break; 823 case EVFILT_SIGNAL: 824 fputs(strsig2(ke->ident), fp); 825 break; 826 default: 827 fprintf(fp, "%p", (void *)ke->ident); 828 } 829 fprintf(fp, ",%s,%s,", xlookup(kevent_filters, ke->filter), 830 xlookup_bits(kevent_flags, ke->flags)); 831 switch (ke->filter) { 832 case EVFILT_READ: 833 case EVFILT_WRITE: 834 fputs(xlookup_bits(kevent_rdwr_fflags, ke->fflags), fp); 835 break; 836 case EVFILT_VNODE: 837 fputs(xlookup_bits(kevent_vnode_fflags, ke->fflags), fp); 838 break; 839 case EVFILT_PROC: 840 fputs(xlookup_bits(kevent_proc_fflags, ke->fflags), fp); 841 break; 842 case EVFILT_TIMER: 843 fputs(xlookup_bits(kevent_timer_fflags, ke->fflags), fp); 844 break; 845 case EVFILT_USER: { 846 int ctrl, data; 847 848 ctrl = ke->fflags & NOTE_FFCTRLMASK; 849 data = ke->fflags & NOTE_FFLAGSMASK; 850 if (input) { 851 fputs(xlookup(kevent_user_ffctrl, ctrl), fp); 852 if (ke->fflags & NOTE_TRIGGER) 853 fputs("|NOTE_TRIGGER", fp); 854 if (data != 0) 855 fprintf(fp, "|%#x", data); 856 } else { 857 fprintf(fp, "%#x", data); 858 } 859 break; 860 } 861 default: 862 fprintf(fp, "%#x", ke->fflags); 863 } 864 fprintf(fp, ",%p,%p", (void *)ke->data, (void *)ke->udata); 865} 866 867/* 868 * Converts a syscall argument into a string. Said string is 869 * allocated via malloc(), so needs to be free()'d. sc is 870 * a pointer to the syscall description (see above); args is 871 * an array of all of the system call arguments. 872 */ 873char * 874print_arg(struct syscall_args *sc, unsigned long *args, long *retval, 875 struct trussinfo *trussinfo) 876{ 877 FILE *fp; 878 char *tmp; 879 size_t tmplen; 880 pid_t pid; 881 882 fp = open_memstream(&tmp, &tmplen); 883 pid = trussinfo->curthread->proc->pid; 884 switch (sc->type & ARG_MASK) { 885 case Hex: 886 fprintf(fp, "0x%x", (int)args[sc->offset]); 887 break; 888 case Octal: 889 fprintf(fp, "0%o", (int)args[sc->offset]); 890 break; 891 case Int: 892 fprintf(fp, "%d", (int)args[sc->offset]); 893 break; 894 case LongHex: 895 fprintf(fp, "0x%lx", args[sc->offset]); 896 break; 897 case Long: 898 fprintf(fp, "%ld", args[sc->offset]); 899 break; 900 case Name: { 901 /* NULL-terminated string. */ 902 char *tmp2; 903 904 tmp2 = get_string(pid, (void*)args[sc->offset], 0); 905 fprintf(fp, "\"%s\"", tmp2); 906 free(tmp2); 907 break; 908 } 909 case BinString: { 910 /* 911 * Binary block of data that might have printable characters. 912 * XXX If type|OUT, assume that the length is the syscall's 913 * return value. Otherwise, assume that the length of the block 914 * is in the next syscall argument. 915 */ 916 int max_string = trussinfo->strsize; 917 char tmp2[max_string + 1], *tmp3; 918 int len; 919 int truncated = 0; 920 921 if (sc->type & OUT) 922 len = retval[0]; 923 else 924 len = args[sc->offset + 1]; 925 926 /* 927 * Don't print more than max_string characters, to avoid word 928 * wrap. If we have to truncate put some ... after the string. 929 */ 930 if (len > max_string) { 931 len = max_string; 932 truncated = 1; 933 } 934 if (len && get_struct(pid, (void*)args[sc->offset], &tmp2, len) 935 != -1) { 936 tmp3 = malloc(len * 4 + 1); 937 while (len) { 938 if (strvisx(tmp3, tmp2, len, 939 VIS_CSTYLE|VIS_TAB|VIS_NL) <= max_string) 940 break; 941 len--; 942 truncated = 1; 943 }; 944 fprintf(fp, "\"%s\"%s", tmp3, truncated ? 945 "..." : ""); 946 free(tmp3); 947 } else { 948 fprintf(fp, "0x%lx", args[sc->offset]); 949 } 950 break; 951 } 952 case ExecArgs: 953 case ExecEnv: 954 case StringArray: { 955 uintptr_t addr; 956 union { 957 char *strarray[0]; 958 char buf[PAGE_SIZE]; 959 } u; 960 char *string; 961 size_t len; 962 u_int first, i; 963 964 /* 965 * Only parse argv[] and environment arrays from exec calls 966 * if requested. 967 */ 968 if (((sc->type & ARG_MASK) == ExecArgs && 969 (trussinfo->flags & EXECVEARGS) == 0) || 970 ((sc->type & ARG_MASK) == ExecEnv && 971 (trussinfo->flags & EXECVEENVS) == 0)) { 972 fprintf(fp, "0x%lx", args[sc->offset]); 973 break; 974 } 975 976 /* 977 * Read a page of pointers at a time. Punt if the top-level 978 * pointer is not aligned. Note that the first read is of 979 * a partial page. 980 */ 981 addr = args[sc->offset]; 982 if (addr % sizeof(char *) != 0) { 983 fprintf(fp, "0x%lx", args[sc->offset]); 984 break; 985 } 986 987 len = PAGE_SIZE - (addr & PAGE_MASK); 988 if (get_struct(pid, (void *)addr, u.buf, len) == -1) { 989 fprintf(fp, "0x%lx", args[sc->offset]); 990 break; 991 } 992 993 fputc('[', fp); 994 first = 1; 995 i = 0; 996 while (u.strarray[i] != NULL) { 997 string = get_string(pid, u.strarray[i], 0); 998 fprintf(fp, "%s \"%s\"", first ? "" : ",", string); 999 free(string); 1000 first = 0; 1001 1002 i++; 1003 if (i == len / sizeof(char *)) { 1004 addr += len; 1005 len = PAGE_SIZE; 1006 if (get_struct(pid, (void *)addr, u.buf, len) == 1007 -1) { 1008 fprintf(fp, ", <inval>"); 1009 break; 1010 } 1011 i = 0; 1012 } 1013 } 1014 fputs(" ]", fp); 1015 break; 1016 } 1017#ifdef __LP64__ 1018 case Quad: 1019 fprintf(fp, "%ld", args[sc->offset]); 1020 break; 1021 case QuadHex: 1022 fprintf(fp, "0x%lx", args[sc->offset]); 1023 break; 1024#else 1025 case Quad: 1026 case QuadHex: { 1027 unsigned long long ll; 1028 1029#if _BYTE_ORDER == _LITTLE_ENDIAN 1030 ll = (unsigned long long)args[sc->offset + 1] << 32 | 1031 args[sc->offset]; 1032#else 1033 ll = (unsigned long long)args[sc->offset] << 32 | 1034 args[sc->offset + 1]; 1035#endif 1036 if ((sc->type & ARG_MASK) == Quad) 1037 fprintf(fp, "%lld", ll); 1038 else 1039 fprintf(fp, "0x%llx", ll); 1040 break; 1041 } 1042#endif 1043 case Ptr: 1044 fprintf(fp, "0x%lx", args[sc->offset]); 1045 break; 1046 case Readlinkres: { 1047 char *tmp2; 1048 1049 if (retval[0] == -1) 1050 break; 1051 tmp2 = get_string(pid, (void*)args[sc->offset], retval[0]); 1052 fprintf(fp, "\"%s\"", tmp2); 1053 free(tmp2); 1054 break; 1055 } 1056 case Ioctl: { 1057 const char *temp; 1058 unsigned long cmd; 1059 1060 cmd = args[sc->offset]; 1061 temp = ioctlname(cmd); 1062 if (temp) 1063 fputs(temp, fp); 1064 else { 1065 fprintf(fp, "0x%lx { IO%s%s 0x%lx('%c'), %lu, %lu }", 1066 cmd, cmd & IOC_OUT ? "R" : "", 1067 cmd & IOC_IN ? "W" : "", IOCGROUP(cmd), 1068 isprint(IOCGROUP(cmd)) ? (char)IOCGROUP(cmd) : '?', 1069 cmd & 0xFF, IOCPARM_LEN(cmd)); 1070 } 1071 break; 1072 } 1073 case Umtx: { 1074 struct umtx umtx; 1075 if (get_struct(pid, (void *)args[sc->offset], &umtx, 1076 sizeof(umtx)) != -1) 1077 fprintf(fp, "{ 0x%lx }", (long)umtx.u_owner); 1078 else 1079 fprintf(fp, "0x%lx", args[sc->offset]); 1080 break; 1081 } 1082 case Timespec: { 1083 struct timespec ts; 1084 1085 if (get_struct(pid, (void *)args[sc->offset], &ts, 1086 sizeof(ts)) != -1) 1087 fprintf(fp, "{ %jd.%09ld }", (intmax_t)ts.tv_sec, 1088 ts.tv_nsec); 1089 else 1090 fprintf(fp, "0x%lx", args[sc->offset]); 1091 break; 1092 } 1093 case Timespec2: { 1094 struct timespec ts[2]; 1095 const char *sep; 1096 unsigned int i; 1097 1098 if (get_struct(pid, (void *)args[sc->offset], &ts, sizeof(ts)) 1099 != -1) { 1100 fputs("{ ", fp); 1101 sep = ""; 1102 for (i = 0; i < nitems(ts); i++) { 1103 fputs(sep, fp); 1104 sep = ", "; 1105 switch (ts[i].tv_nsec) { 1106 case UTIME_NOW: 1107 fprintf(fp, "UTIME_NOW"); 1108 break; 1109 case UTIME_OMIT: 1110 fprintf(fp, "UTIME_OMIT"); 1111 break; 1112 default: 1113 fprintf(fp, "%jd.%09ld", 1114 (intmax_t)ts[i].tv_sec, 1115 ts[i].tv_nsec); 1116 break; 1117 } 1118 } 1119 fputs(" }", fp); 1120 } else 1121 fprintf(fp, "0x%lx", args[sc->offset]); 1122 break; 1123 } 1124 case Timeval: { 1125 struct timeval tv; 1126 1127 if (get_struct(pid, (void *)args[sc->offset], &tv, sizeof(tv)) 1128 != -1) 1129 fprintf(fp, "{ %jd.%06ld }", (intmax_t)tv.tv_sec, 1130 tv.tv_usec); 1131 else 1132 fprintf(fp, "0x%lx", args[sc->offset]); 1133 break; 1134 } 1135 case Timeval2: { 1136 struct timeval tv[2]; 1137 1138 if (get_struct(pid, (void *)args[sc->offset], &tv, sizeof(tv)) 1139 != -1) 1140 fprintf(fp, "{ %jd.%06ld, %jd.%06ld }", 1141 (intmax_t)tv[0].tv_sec, tv[0].tv_usec, 1142 (intmax_t)tv[1].tv_sec, tv[1].tv_usec); 1143 else 1144 fprintf(fp, "0x%lx", args[sc->offset]); 1145 break; 1146 } 1147 case Itimerval: { 1148 struct itimerval itv; 1149 1150 if (get_struct(pid, (void *)args[sc->offset], &itv, 1151 sizeof(itv)) != -1) 1152 fprintf(fp, "{ %jd.%06ld, %jd.%06ld }", 1153 (intmax_t)itv.it_interval.tv_sec, 1154 itv.it_interval.tv_usec, 1155 (intmax_t)itv.it_value.tv_sec, 1156 itv.it_value.tv_usec); 1157 else 1158 fprintf(fp, "0x%lx", args[sc->offset]); 1159 break; 1160 } 1161 case LinuxSockArgs: 1162 { 1163 struct linux_socketcall_args largs; 1164 1165 if (get_struct(pid, (void *)args[sc->offset], (void *)&largs, 1166 sizeof(largs)) != -1) 1167 fprintf(fp, "{ %s, 0x%lx }", 1168 lookup(linux_socketcall_ops, largs.what, 10), 1169 (long unsigned int)largs.args); 1170 else 1171 fprintf(fp, "0x%lx", args[sc->offset]); 1172 break; 1173 } 1174 case Pollfd: { 1175 /* 1176 * XXX: A Pollfd argument expects the /next/ syscall argument 1177 * to be the number of fds in the array. This matches the poll 1178 * syscall. 1179 */ 1180 struct pollfd *pfd; 1181 int numfds = args[sc->offset + 1]; 1182 size_t bytes = sizeof(struct pollfd) * numfds; 1183 int i; 1184 1185 if ((pfd = malloc(bytes)) == NULL) 1186 err(1, "Cannot malloc %zu bytes for pollfd array", 1187 bytes); 1188 if (get_struct(pid, (void *)args[sc->offset], pfd, bytes) 1189 != -1) { 1190 fputs("{", fp); 1191 for (i = 0; i < numfds; i++) { 1192 fprintf(fp, " %d/%s", pfd[i].fd, 1193 xlookup_bits(poll_flags, pfd[i].events)); 1194 } 1195 fputs(" }", fp); 1196 } else { 1197 fprintf(fp, "0x%lx", args[sc->offset]); 1198 } 1199 free(pfd); 1200 break; 1201 } 1202 case Fd_set: { 1203 /* 1204 * XXX: A Fd_set argument expects the /first/ syscall argument 1205 * to be the number of fds in the array. This matches the 1206 * select syscall. 1207 */ 1208 fd_set *fds; 1209 int numfds = args[0]; 1210 size_t bytes = _howmany(numfds, _NFDBITS) * _NFDBITS; 1211 int i; 1212 1213 if ((fds = malloc(bytes)) == NULL) 1214 err(1, "Cannot malloc %zu bytes for fd_set array", 1215 bytes); 1216 if (get_struct(pid, (void *)args[sc->offset], fds, bytes) 1217 != -1) { 1218 fputs("{", fp); 1219 for (i = 0; i < numfds; i++) { 1220 if (FD_ISSET(i, fds)) 1221 fprintf(fp, " %d", i); 1222 } 1223 fputs(" }", fp); 1224 } else 1225 fprintf(fp, "0x%lx", args[sc->offset]); 1226 free(fds); 1227 break; 1228 } 1229 case Signal: 1230 fputs(strsig2(args[sc->offset]), fp); 1231 break; 1232 case Sigset: { 1233 long sig; 1234 sigset_t ss; 1235 int i, first; 1236 1237 sig = args[sc->offset]; 1238 if (get_struct(pid, (void *)args[sc->offset], (void *)&ss, 1239 sizeof(ss)) == -1) { 1240 fprintf(fp, "0x%lx", args[sc->offset]); 1241 break; 1242 } 1243 fputs("{ ", fp); 1244 first = 1; 1245 for (i = 1; i < sys_nsig; i++) { 1246 if (sigismember(&ss, i)) { 1247 fprintf(fp, "%s%s", !first ? "|" : "", 1248 strsig(i)); 1249 first = 0; 1250 } 1251 } 1252 if (!first) 1253 fputc(' ', fp); 1254 fputc('}', fp); 1255 break; 1256 } 1257 case Sigprocmask: { 1258 fputs(xlookup(sigprocmask_ops, args[sc->offset]), fp); 1259 break; 1260 } 1261 case Fcntlflag: { 1262 /* XXX: Output depends on the value of the previous argument. */ 1263 switch (args[sc->offset - 1]) { 1264 case F_SETFD: 1265 fputs(xlookup_bits(fcntlfd_arg, args[sc->offset]), fp); 1266 break; 1267 case F_SETFL: 1268 fputs(xlookup_bits(fcntlfl_arg, args[sc->offset]), fp); 1269 break; 1270 case F_GETFD: 1271 case F_GETFL: 1272 case F_GETOWN: 1273 break; 1274 default: 1275 fprintf(fp, "0x%lx", args[sc->offset]); 1276 break; 1277 } 1278 break; 1279 } 1280 case Open: 1281 fputs(xlookup_bits(open_flags, args[sc->offset]), fp); 1282 break; 1283 case Fcntl: 1284 fputs(xlookup(fcntl_arg, args[sc->offset]), fp); 1285 break; 1286 case Mprot: 1287 fputs(xlookup_bits(mprot_flags, args[sc->offset]), fp); 1288 break; 1289 case Mmapflags: { 1290 int align, flags; 1291 1292 /* 1293 * MAP_ALIGNED can't be handled by xlookup_bits(), so 1294 * generate that string manually and prepend it to the 1295 * string from xlookup_bits(). Have to be careful to 1296 * avoid outputting MAP_ALIGNED|0 if MAP_ALIGNED is 1297 * the only flag. 1298 */ 1299 flags = args[sc->offset] & ~MAP_ALIGNMENT_MASK; 1300 align = args[sc->offset] & MAP_ALIGNMENT_MASK; 1301 if (align != 0) { 1302 if (align == MAP_ALIGNED_SUPER) 1303 fputs("MAP_ALIGNED_SUPER", fp); 1304 else 1305 fprintf(fp, "MAP_ALIGNED(%d)", 1306 align >> MAP_ALIGNMENT_SHIFT); 1307 if (flags == 0) 1308 break; 1309 fputc('|', fp); 1310 } 1311 fputs(xlookup_bits(mmap_flags, flags), fp); 1312 break; 1313 } 1314 case Whence: 1315 fputs(xlookup(whence_arg, args[sc->offset]), fp); 1316 break; 1317 case Sockdomain: 1318 fputs(xlookup(sockdomain_arg, args[sc->offset]), fp); 1319 break; 1320 case Socktype: { 1321 int type, flags; 1322 1323 flags = args[sc->offset] & (SOCK_CLOEXEC | SOCK_NONBLOCK); 1324 type = args[sc->offset] & ~flags; 1325 fputs(xlookup(socktype_arg, type), fp); 1326 if (flags & SOCK_CLOEXEC) 1327 fprintf(fp, "|SOCK_CLOEXEC"); 1328 if (flags & SOCK_NONBLOCK) 1329 fprintf(fp, "|SOCK_NONBLOCK"); 1330 break; 1331 } 1332 case Shutdown: 1333 fputs(xlookup(shutdown_arg, args[sc->offset]), fp); 1334 break; 1335 case Resource: 1336 fputs(xlookup(resource_arg, args[sc->offset]), fp); 1337 break; 1338 case Pathconf: 1339 fputs(xlookup(pathconf_arg, args[sc->offset]), fp); 1340 break; 1341 case Rforkflags: 1342 fputs(xlookup_bits(rfork_flags, args[sc->offset]), fp); 1343 break; 1344 case Sockaddr: { 1345 char addr[64]; 1346 struct sockaddr_in *lsin; 1347 struct sockaddr_in6 *lsin6; 1348 struct sockaddr_un *sun; 1349 struct sockaddr *sa; 1350 socklen_t len; 1351 u_char *q; 1352 1353 if (args[sc->offset] == 0) { 1354 fputs("NULL", fp); 1355 break; 1356 } 1357 1358 /* 1359 * Extract the address length from the next argument. If 1360 * this is an output sockaddr (OUT is set), then the 1361 * next argument is a pointer to a socklen_t. Otherwise 1362 * the next argument contains a socklen_t by value. 1363 */ 1364 if (sc->type & OUT) { 1365 if (get_struct(pid, (void *)args[sc->offset + 1], 1366 &len, sizeof(len)) == -1) { 1367 fprintf(fp, "0x%lx", args[sc->offset]); 1368 break; 1369 } 1370 } else 1371 len = args[sc->offset + 1]; 1372 1373 /* If the length is too small, just bail. */ 1374 if (len < sizeof(*sa)) { 1375 fprintf(fp, "0x%lx", args[sc->offset]); 1376 break; 1377 } 1378 1379 sa = calloc(1, len); 1380 if (get_struct(pid, (void *)args[sc->offset], sa, len) == -1) { 1381 free(sa); 1382 fprintf(fp, "0x%lx", args[sc->offset]); 1383 break; 1384 } 1385 1386 switch (sa->sa_family) { 1387 case AF_INET: 1388 if (len < sizeof(*lsin)) 1389 goto sockaddr_short; 1390 lsin = (struct sockaddr_in *)(void *)sa; 1391 inet_ntop(AF_INET, &lsin->sin_addr, addr, sizeof(addr)); 1392 fprintf(fp, "{ AF_INET %s:%d }", addr, 1393 htons(lsin->sin_port)); 1394 break; 1395 case AF_INET6: 1396 if (len < sizeof(*lsin6)) 1397 goto sockaddr_short; 1398 lsin6 = (struct sockaddr_in6 *)(void *)sa; 1399 inet_ntop(AF_INET6, &lsin6->sin6_addr, addr, 1400 sizeof(addr)); 1401 fprintf(fp, "{ AF_INET6 [%s]:%d }", addr, 1402 htons(lsin6->sin6_port)); 1403 break; 1404 case AF_UNIX: 1405 sun = (struct sockaddr_un *)sa; 1406 fprintf(fp, "{ AF_UNIX \"%.*s\" }", 1407 (int)(len - offsetof(struct sockaddr_un, sun_path)), 1408 sun->sun_path); 1409 break; 1410 default: 1411 sockaddr_short: 1412 fprintf(fp, 1413 "{ sa_len = %d, sa_family = %d, sa_data = {", 1414 (int)sa->sa_len, (int)sa->sa_family); 1415 for (q = (u_char *)sa->sa_data; 1416 q < (u_char *)sa + len; q++) 1417 fprintf(fp, "%s 0x%02x", 1418 q == (u_char *)sa->sa_data ? "" : ",", 1419 *q); 1420 fputs(" } }", fp); 1421 } 1422 free(sa); 1423 break; 1424 } 1425 case Sigaction: { 1426 struct sigaction sa; 1427 1428 if (get_struct(pid, (void *)args[sc->offset], &sa, sizeof(sa)) 1429 != -1) { 1430 fputs("{ ", fp); 1431 if (sa.sa_handler == SIG_DFL) 1432 fputs("SIG_DFL", fp); 1433 else if (sa.sa_handler == SIG_IGN) 1434 fputs("SIG_IGN", fp); 1435 else 1436 fprintf(fp, "%p", sa.sa_handler); 1437 fprintf(fp, " %s ss_t }", 1438 xlookup_bits(sigaction_flags, sa.sa_flags)); 1439 } else 1440 fprintf(fp, "0x%lx", args[sc->offset]); 1441 break; 1442 } 1443 case Kevent: { 1444 /* 1445 * XXX XXX: The size of the array is determined by either the 1446 * next syscall argument, or by the syscall return value, 1447 * depending on which argument number we are. This matches the 1448 * kevent syscall, but luckily that's the only syscall that uses 1449 * them. 1450 */ 1451 struct kevent *ke; 1452 int numevents = -1; 1453 size_t bytes; 1454 int i; 1455 1456 if (sc->offset == 1) 1457 numevents = args[sc->offset+1]; 1458 else if (sc->offset == 3 && retval[0] != -1) 1459 numevents = retval[0]; 1460 1461 if (numevents >= 0) { 1462 bytes = sizeof(struct kevent) * numevents; 1463 if ((ke = malloc(bytes)) == NULL) 1464 err(1, 1465 "Cannot malloc %zu bytes for kevent array", 1466 bytes); 1467 } else 1468 ke = NULL; 1469 if (numevents >= 0 && get_struct(pid, (void *)args[sc->offset], 1470 ke, bytes) != -1) { 1471 fputc('{', fp); 1472 for (i = 0; i < numevents; i++) { 1473 fputc(' ', fp); 1474 print_kevent(fp, &ke[i], sc->offset == 1); 1475 } 1476 fputs(" }", fp); 1477 } else { 1478 fprintf(fp, "0x%lx", args[sc->offset]); 1479 } 1480 free(ke); 1481 break; 1482 } 1483 case Stat: { 1484 struct stat st; 1485 1486 if (get_struct(pid, (void *)args[sc->offset], &st, sizeof(st)) 1487 != -1) { 1488 char mode[12]; 1489 1490 strmode(st.st_mode, mode); 1491 fprintf(fp, 1492 "{ mode=%s,inode=%ju,size=%jd,blksize=%ld }", mode, 1493 (uintmax_t)st.st_ino, (intmax_t)st.st_size, 1494 (long)st.st_blksize); 1495 } else { 1496 fprintf(fp, "0x%lx", args[sc->offset]); 1497 } 1498 break; 1499 } 1500 case StatFs: { 1501 unsigned int i; 1502 struct statfs buf; 1503 1504 if (get_struct(pid, (void *)args[sc->offset], &buf, 1505 sizeof(buf)) != -1) { 1506 char fsid[17]; 1507 1508 bzero(fsid, sizeof(fsid)); 1509 if (buf.f_fsid.val[0] != 0 || buf.f_fsid.val[1] != 0) { 1510 for (i = 0; i < sizeof(buf.f_fsid); i++) 1511 snprintf(&fsid[i*2], 1512 sizeof(fsid) - (i*2), "%02x", 1513 ((u_char *)&buf.f_fsid)[i]); 1514 } 1515 fprintf(fp, 1516 "{ fstypename=%s,mntonname=%s,mntfromname=%s," 1517 "fsid=%s }", buf.f_fstypename, buf.f_mntonname, 1518 buf.f_mntfromname, fsid); 1519 } else 1520 fprintf(fp, "0x%lx", args[sc->offset]); 1521 break; 1522 } 1523 1524 case Rusage: { 1525 struct rusage ru; 1526 1527 if (get_struct(pid, (void *)args[sc->offset], &ru, sizeof(ru)) 1528 != -1) { 1529 fprintf(fp, 1530 "{ u=%jd.%06ld,s=%jd.%06ld,in=%ld,out=%ld }", 1531 (intmax_t)ru.ru_utime.tv_sec, ru.ru_utime.tv_usec, 1532 (intmax_t)ru.ru_stime.tv_sec, ru.ru_stime.tv_usec, 1533 ru.ru_inblock, ru.ru_oublock); 1534 } else 1535 fprintf(fp, "0x%lx", args[sc->offset]); 1536 break; 1537 } 1538 case Rlimit: { 1539 struct rlimit rl; 1540 1541 if (get_struct(pid, (void *)args[sc->offset], &rl, sizeof(rl)) 1542 != -1) { 1543 fprintf(fp, "{ cur=%ju,max=%ju }", 1544 rl.rlim_cur, rl.rlim_max); 1545 } else 1546 fprintf(fp, "0x%lx", args[sc->offset]); 1547 break; 1548 } 1549 case ExitStatus: { 1550 int status; 1551 1552 if (get_struct(pid, (void *)args[sc->offset], &status, 1553 sizeof(status)) != -1) { 1554 fputs("{ ", fp); 1555 if (WIFCONTINUED(status)) 1556 fputs("CONTINUED", fp); 1557 else if (WIFEXITED(status)) 1558 fprintf(fp, "EXITED,val=%d", 1559 WEXITSTATUS(status)); 1560 else if (WIFSIGNALED(status)) 1561 fprintf(fp, "SIGNALED,sig=%s%s", 1562 strsig2(WTERMSIG(status)), 1563 WCOREDUMP(status) ? ",cored" : ""); 1564 else 1565 fprintf(fp, "STOPPED,sig=%s", 1566 strsig2(WTERMSIG(status))); 1567 fputs(" }", fp); 1568 } else 1569 fprintf(fp, "0x%lx", args[sc->offset]); 1570 break; 1571 } 1572 case Waitoptions: 1573 fputs(xlookup_bits(wait_options, args[sc->offset]), fp); 1574 break; 1575 case Idtype: 1576 fputs(xlookup(idtype_arg, args[sc->offset]), fp); 1577 break; 1578 case Procctl: 1579 fputs(xlookup(procctl_arg, args[sc->offset]), fp); 1580 break; 1581 case Umtxop: 1582 fputs(xlookup(umtx_ops, args[sc->offset]), fp); 1583 break; 1584 case Atfd: 1585 if ((int)args[sc->offset] == AT_FDCWD) 1586 fputs("AT_FDCWD", fp); 1587 else 1588 fprintf(fp, "%d", (int)args[sc->offset]); 1589 break; 1590 case Atflags: 1591 fputs(xlookup_bits(at_flags, args[sc->offset]), fp); 1592 break; 1593 case Accessmode: 1594 if (args[sc->offset] == F_OK) 1595 fputs("F_OK", fp); 1596 else 1597 fputs(xlookup_bits(access_modes, args[sc->offset]), fp); 1598 break; 1599 case Sysarch: 1600 fputs(xlookup(sysarch_ops, args[sc->offset]), fp); 1601 break; 1602 case PipeFds: 1603 /* 1604 * The pipe() system call in the kernel returns its 1605 * two file descriptors via return values. However, 1606 * the interface exposed by libc is that pipe() 1607 * accepts a pointer to an array of descriptors. 1608 * Format the output to match the libc API by printing 1609 * the returned file descriptors as a fake argument. 1610 * 1611 * Overwrite the first retval to signal a successful 1612 * return as well. 1613 */ 1614 fprintf(fp, "{ %ld, %ld }", retval[0], retval[1]); 1615 retval[0] = 0; 1616 break; 1617 default: 1618 errx(1, "Invalid argument type %d\n", sc->type & ARG_MASK); 1619 } 1620 fclose(fp); 1621 return (tmp); 1622} 1623 1624/* 1625 * Print (to outfile) the system call and its arguments. 1626 */ 1627void 1628print_syscall(struct trussinfo *trussinfo) 1629{ 1630 struct threadinfo *t; 1631 const char *name; 1632 char **s_args; 1633 int i, len, nargs; 1634 1635 t = trussinfo->curthread; 1636 1637 name = t->cs.name; 1638 nargs = t->cs.nargs; 1639 s_args = t->cs.s_args; 1640 1641 len = print_line_prefix(trussinfo); 1642 len += fprintf(trussinfo->outfile, "%s(", name); 1643 1644 for (i = 0; i < nargs; i++) { 1645 if (s_args[i] != NULL) 1646 len += fprintf(trussinfo->outfile, "%s", s_args[i]); 1647 else 1648 len += fprintf(trussinfo->outfile, 1649 "<missing argument>"); 1650 len += fprintf(trussinfo->outfile, "%s", i < (nargs - 1) ? 1651 "," : ""); 1652 } 1653 len += fprintf(trussinfo->outfile, ")"); 1654 for (i = 0; i < 6 - (len / 8); i++) 1655 fprintf(trussinfo->outfile, "\t"); 1656} 1657 1658void 1659print_syscall_ret(struct trussinfo *trussinfo, int errorp, long *retval) 1660{ 1661 struct timespec timediff; 1662 struct threadinfo *t; 1663 struct syscall *sc; 1664 1665 t = trussinfo->curthread; 1666 sc = t->cs.sc; 1667 if (trussinfo->flags & COUNTONLY) { 1668 timespecsubt(&t->after, &t->before, &timediff); 1669 timespecadd(&sc->time, &timediff, &sc->time); 1670 sc->ncalls++; 1671 if (errorp) 1672 sc->nerror++; 1673 return; 1674 } 1675 1676 print_syscall(trussinfo); 1677 fflush(trussinfo->outfile); 1678 if (errorp) 1679 fprintf(trussinfo->outfile, " ERR#%ld '%s'\n", retval[0], 1680 strerror(retval[0])); 1681#ifndef __LP64__ 1682 else if (sc->ret_type == 2) { 1683 off_t off; 1684 1685#if _BYTE_ORDER == _LITTLE_ENDIAN 1686 off = (off_t)retval[1] << 32 | retval[0]; 1687#else 1688 off = (off_t)retval[0] << 32 | retval[1]; 1689#endif 1690 fprintf(trussinfo->outfile, " = %jd (0x%jx)\n", (intmax_t)off, 1691 (intmax_t)off); 1692 } 1693#endif 1694 else 1695 fprintf(trussinfo->outfile, " = %ld (0x%lx)\n", retval[0], 1696 retval[0]); 1697} 1698 1699void 1700print_summary(struct trussinfo *trussinfo) 1701{ 1702 struct timespec total = {0, 0}; 1703 struct syscall *sc; 1704 int ncall, nerror; 1705 1706 fprintf(trussinfo->outfile, "%-20s%15s%8s%8s\n", 1707 "syscall", "seconds", "calls", "errors"); 1708 ncall = nerror = 0; 1709 STAILQ_FOREACH(sc, &syscalls, entries) 1710 if (sc->ncalls) { 1711 fprintf(trussinfo->outfile, "%-20s%5jd.%09ld%8d%8d\n", 1712 sc->name, (intmax_t)sc->time.tv_sec, 1713 sc->time.tv_nsec, sc->ncalls, sc->nerror); 1714 timespecadd(&total, &sc->time, &total); 1715 ncall += sc->ncalls; 1716 nerror += sc->nerror; 1717 } 1718 fprintf(trussinfo->outfile, "%20s%15s%8s%8s\n", 1719 "", "-------------", "-------", "-------"); 1720 fprintf(trussinfo->outfile, "%-20s%5jd.%09ld%8d%8d\n", 1721 "", (intmax_t)total.tv_sec, total.tv_nsec, ncall, nerror); 1722} 1723