libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.cpp

   1 //===-- sanitizer_platform_limits_posix.cpp -------------------------------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8 //
   9 // This file is a part of Sanitizer common code.
  10 //
  11 // Sizes and layouts of platform-specific POSIX data structures.
  12 //===----------------------------------------------------------------------===//
  13
  14 #include "sanitizer_platform.h"
  15
  16 #if SANITIZER_LINUX || SANITIZER_MAC
  17 // Tests in this file assume that off_t-dependent data structures match the
  18 // libc ABI. For example, struct dirent here is what readdir() function (as
  19 // exported from libc) returns, and not the user-facing "dirent", which
  20 // depends on _FILE_OFFSET_BITS setting.
  21 // To get this "true" dirent definition, we undefine _FILE_OFFSET_BITS below.
  22 #ifdef _FILE_OFFSET_BITS
  23 #undef _FILE_OFFSET_BITS
  24 #endif
  25
  26 // Must go after undef _FILE_OFFSET_BITS.
  27 #include "sanitizer_glibc_version.h"
  28
  29 #include <arpa/inet.h>
  30 #include <dirent.h>
  31 #include <grp.h>
  32 #include <limits.h>
  33 #include <net/if.h>
  34 #include <netdb.h>
  35 #include <poll.h>
  36 #include <pthread.h>
  37 #include <pwd.h>
  38 #include <signal.h>
  39 #include <stddef.h>
  40 #include <sys/mman.h>
  41 #include <sys/resource.h>
  42 #include <sys/socket.h>
  43 #include <sys/stat.h>
  44 #include <sys/time.h>
  45 #include <sys/times.h>
  46 #include <sys/types.h>
  47 #include <sys/utsname.h>
  48 #include <termios.h>
  49 #include <time.h>
  50 #include <wchar.h>
  51 #include <regex.h>
  52 #if !SANITIZER_MAC
  53 #include <utmp.h>
  54 #endif
  55
  56 #if !SANITIZER_IOS
  57 #include <net/route.h>
  58 #endif
  59
  60 #if !SANITIZER_ANDROID
  61 #include <fstab.h>
  62 #include <sys/mount.h>
  63 #include <sys/timeb.h>
  64 #include <utmpx.h>
  65 #endif
  66
  67 #if SANITIZER_LINUX
  68 #include <malloc.h>
  69 #include <mntent.h>
  70 #include <netinet/ether.h>
  71 #include <sys/sysinfo.h>
  72 #include <sys/vt.h>
  73 #include <linux/cdrom.h>
  74 #include <linux/fd.h>
  75 #include <linux/fs.h>
  76 #include <linux/hdreg.h>
  77 #include <linux/input.h>
  78 #include <linux/ioctl.h>
  79 #include <linux/soundcard.h>
  80 #include <linux/sysctl.h>
  81 #include <linux/utsname.h>
  82 #include <linux/posix_types.h>
  83 #include <net/if_arp.h>
  84 #endif
  85
  86 #if SANITIZER_IOS
  87 #undef IOC_DIRMASK
  88 #endif
  89
  90 #if SANITIZER_LINUX
  91 # include <utime.h>
  92 # include <sys/ptrace.h>
  93 #if defined(__mips64) || defined(__aarch64__) || defined(__arm__) || \
  94     SANITIZER_RISCV64
  95 #  include <asm/ptrace.h>
  96 #  ifdef __arm__
  97 typedef struct user_fpregs elf_fpregset_t;
  98 #   define ARM_VFPREGS_SIZE_ASAN (32 * 8 /*fpregs*/ + 4 /*fpscr*/)
  99 #   if !defined(ARM_VFPREGS_SIZE)
 100 #     define ARM_VFPREGS_SIZE ARM_VFPREGS_SIZE_ASAN
 101 #   endif
 102 #  endif
 103 # endif
 104 # include <semaphore.h>
 105 #endif
 106
 107 #if !SANITIZER_ANDROID
 108 #include <ifaddrs.h>
 109 #include <sys/ucontext.h>
 110 #include <wordexp.h>
 111 #endif
 112
 113 #if SANITIZER_LINUX && !SANITIZER_ANDROID
 114 #include <glob.h>
 115 #include <obstack.h>
 116 #include <mqueue.h>
 117 #include <net/if_ppp.h>
 118 #include <netax25/ax25.h>
 119 #include <netipx/ipx.h>
 120 #include <netrom/netrom.h>
 121 #if HAVE_RPC_XDR_H
 122 # include <rpc/xdr.h>
 123 #endif
 124 #include <scsi/scsi.h>
 125 #include <sys/mtio.h>
 126 #include <sys/kd.h>
 127 #include <sys/shm.h>
 128 #include <sys/statvfs.h>
 129 #include <sys/timex.h>
 130 #if defined(__mips64)
 131 # include <sys/procfs.h>
 132 #endif
 133 #include <sys/user.h>
 134 #include <linux/cyclades.h>
 135 #include <linux/if_eql.h>
 136 #include <linux/if_plip.h>
 137 #include <linux/lp.h>
 138 #include <linux/mroute.h>
 139 #include <linux/mroute6.h>
 140 #include <linux/scc.h>
 141 #include <linux/serial.h>
 142 #include <sys/msg.h>
 143 #include <sys/ipc.h>
 144 #include <crypt.h>
 145 #endif // SANITIZER_LINUX && !SANITIZER_ANDROID
 146
 147 #if SANITIZER_ANDROID
 148 #include <linux/kd.h>
 149 #include <linux/mtio.h>
 150 #include <linux/ppp_defs.h>
 151 #include <linux/if_ppp.h>
 152 #endif
 153
 154 #if SANITIZER_LINUX
 155 #include <link.h>
 156 #include <sys/vfs.h>
 157 #include <sys/epoll.h>
 158 #include <linux/capability.h>
 159 #endif // SANITIZER_LINUX
 160
 161 #if SANITIZER_MAC
 162 #include <net/ethernet.h>
 163 #include <sys/filio.h>
 164 #include <sys/sockio.h>
 165 #endif
 166
 167 // Include these after system headers to avoid name clashes and ambiguities.
 168 #include "sanitizer_internal_defs.h"
 169 #include "sanitizer_platform_limits_posix.h"
 170
 171 namespace __sanitizer {
 172   unsigned struct_utsname_sz = sizeof(struct utsname);
 173   unsigned struct_stat_sz = sizeof(struct stat);
 174 #if !SANITIZER_IOS && !(SANITIZER_MAC && TARGET_CPU_ARM64)
 175   unsigned struct_stat64_sz = sizeof(struct stat64);
 176 #endif // !SANITIZER_IOS && !(SANITIZER_MAC && TARGET_CPU_ARM64)
 177   unsigned struct_rusage_sz = sizeof(struct rusage);
 178   unsigned struct_tm_sz = sizeof(struct tm);
 179   unsigned struct_passwd_sz = sizeof(struct passwd);
 180   unsigned struct_group_sz = sizeof(struct group);
 181   unsigned siginfo_t_sz = sizeof(siginfo_t);
 182   unsigned struct_sigaction_sz = sizeof(struct sigaction);
 183   unsigned struct_stack_t_sz = sizeof(stack_t);
 184   unsigned struct_itimerval_sz = sizeof(struct itimerval);
 185   unsigned pthread_t_sz = sizeof(pthread_t);
 186   unsigned pthread_mutex_t_sz = sizeof(pthread_mutex_t);
 187   unsigned pthread_cond_t_sz = sizeof(pthread_cond_t);
 188   unsigned pid_t_sz = sizeof(pid_t);
 189   unsigned timeval_sz = sizeof(timeval);
 190   unsigned uid_t_sz = sizeof(uid_t);
 191   unsigned gid_t_sz = sizeof(gid_t);
 192   unsigned mbstate_t_sz = sizeof(mbstate_t);
 193   unsigned sigset_t_sz = sizeof(sigset_t);
 194   unsigned struct_timezone_sz = sizeof(struct timezone);
 195   unsigned struct_tms_sz = sizeof(struct tms);
 196   unsigned struct_sigevent_sz = sizeof(struct sigevent);
 197   unsigned struct_sched_param_sz = sizeof(struct sched_param);
 198   unsigned struct_regex_sz = sizeof(regex_t);
 199   unsigned struct_regmatch_sz = sizeof(regmatch_t);
 200
 201 #if (SANITIZER_MAC && !TARGET_CPU_ARM64) && !SANITIZER_IOS
 202   unsigned struct_statfs64_sz = sizeof(struct statfs64);
 203 #endif // (SANITIZER_MAC && !TARGET_CPU_ARM64) && !SANITIZER_IOS
 204
 205 #if !SANITIZER_ANDROID
 206   unsigned struct_fstab_sz = sizeof(struct fstab);
 207   unsigned struct_statfs_sz = sizeof(struct statfs);
 208   unsigned struct_sockaddr_sz = sizeof(struct sockaddr);
 209   unsigned ucontext_t_sz = sizeof(ucontext_t);
 210 #endif // !SANITIZER_ANDROID
 211
 212 #if SANITIZER_LINUX
 213   unsigned struct_epoll_event_sz = sizeof(struct epoll_event);
 214   unsigned struct_sysinfo_sz = sizeof(struct sysinfo);
 215   unsigned __user_cap_header_struct_sz =
 216       sizeof(struct __user_cap_header_struct);
 217   unsigned __user_cap_data_struct_sz = sizeof(struct __user_cap_data_struct);
 218   unsigned struct_new_utsname_sz = sizeof(struct new_utsname);
 219   unsigned struct_old_utsname_sz = sizeof(struct old_utsname);
 220   unsigned struct_oldold_utsname_sz = sizeof(struct oldold_utsname);
 221 #endif // SANITIZER_LINUX
 222
 223 #if SANITIZER_LINUX
 224   unsigned struct_rlimit_sz = sizeof(struct rlimit);
 225   unsigned struct_timespec_sz = sizeof(struct timespec);
 226   unsigned struct_utimbuf_sz = sizeof(struct utimbuf);
 227   unsigned struct_itimerspec_sz = sizeof(struct itimerspec);
 228 #endif // SANITIZER_LINUX
 229
 230 #if SANITIZER_LINUX && !SANITIZER_ANDROID
 231   // Use pre-computed size of struct ustat to avoid <sys/ustat.h> which
 232   // has been removed from glibc 2.28.
 233 #if defined(__aarch64__) || defined(__s390x__) || defined(__mips64) ||     \
 234     defined(__powerpc64__) || defined(__arch64__) || defined(__sparcv9) || \
 235     defined(__x86_64__) || SANITIZER_RISCV64
 236 #define SIZEOF_STRUCT_USTAT 32
 237 #elif defined(__arm__) || defined(__i386__) || defined(__mips__) \
 238   || defined(__powerpc__) || defined(__s390__) || defined(__sparc__)
 239 #define SIZEOF_STRUCT_USTAT 20
 240 #else
 241 #error Unknown size of struct ustat
 242 #endif
 243   unsigned struct_ustat_sz = SIZEOF_STRUCT_USTAT;
 244   unsigned struct_rlimit64_sz = sizeof(struct rlimit64);
 245   unsigned struct_statvfs64_sz = sizeof(struct statvfs64);
 246   unsigned struct_crypt_data_sz = sizeof(struct crypt_data);
 247 #endif // SANITIZER_LINUX && !SANITIZER_ANDROID
 248
 249 #if SANITIZER_LINUX && !SANITIZER_ANDROID
 250   unsigned struct_timex_sz = sizeof(struct timex);
 251   unsigned struct_msqid_ds_sz = sizeof(struct msqid_ds);
 252   unsigned struct_mq_attr_sz = sizeof(struct mq_attr);
 253   unsigned struct_statvfs_sz = sizeof(struct statvfs);
 254 #endif // SANITIZER_LINUX && !SANITIZER_ANDROID
 255
 256   const uptr sig_ign = (uptr)SIG_IGN;
 257   const uptr sig_dfl = (uptr)SIG_DFL;
 258   const uptr sig_err = (uptr)SIG_ERR;
 259   const uptr sa_siginfo = (uptr)SA_SIGINFO;
 260
 261 #if SANITIZER_LINUX
 262   int e_tabsz = (int)E_TABSZ;
 263 #endif
 264
 265
 266 #if SANITIZER_LINUX && !SANITIZER_ANDROID
 267   unsigned struct_shminfo_sz = sizeof(struct shminfo);
 268   unsigned struct_shm_info_sz = sizeof(struct shm_info);
 269   int shmctl_ipc_stat = (int)IPC_STAT;
 270   int shmctl_ipc_info = (int)IPC_INFO;
 271   int shmctl_shm_info = (int)SHM_INFO;
 272   int shmctl_shm_stat = (int)SHM_STAT;
 273 #endif
 274
 275 #if !SANITIZER_MAC && !SANITIZER_FREEBSD
 276   unsigned struct_utmp_sz = sizeof(struct utmp);
 277 #endif
 278 #if !SANITIZER_ANDROID
 279   unsigned struct_utmpx_sz = sizeof(struct utmpx);
 280 #endif
 281
 282   int map_fixed = MAP_FIXED;
 283
 284   int af_inet = (int)AF_INET;
 285   int af_inet6 = (int)AF_INET6;
 286
 287   uptr __sanitizer_in_addr_sz(int af) {
 288     if (af == AF_INET)
 289       return sizeof(struct in_addr);
 290     else if (af == AF_INET6)
 291       return sizeof(struct in6_addr);
 292     else
 293       return 0;
 294   }
 295
 296 #if SANITIZER_LINUX
 297 unsigned struct_ElfW_Phdr_sz = sizeof(ElfW(Phdr));
 298 #elif SANITIZER_FREEBSD
 299 unsigned struct_ElfW_Phdr_sz = sizeof(Elf_Phdr);
 300 #endif
 301
 302 #if SANITIZER_LINUX && !SANITIZER_ANDROID
 303   int glob_nomatch = GLOB_NOMATCH;
 304   int glob_altdirfunc = GLOB_ALTDIRFUNC;
 305 #endif
 306
 307 #if SANITIZER_LINUX && !SANITIZER_ANDROID &&                               \
 308     (defined(__i386) || defined(__x86_64) || defined(__mips64) ||          \
 309      defined(__powerpc64__) || defined(__aarch64__) || defined(__arm__) || \
 310      defined(__s390__) || SANITIZER_RISCV64)
 311 #if defined(__mips64) || defined(__powerpc64__) || defined(__arm__)
 312   unsigned struct_user_regs_struct_sz = sizeof(struct pt_regs);
 313   unsigned struct_user_fpregs_struct_sz = sizeof(elf_fpregset_t);
 314 #elif SANITIZER_RISCV64
 315   unsigned struct_user_regs_struct_sz = sizeof(struct user_regs_struct);
 316   unsigned struct_user_fpregs_struct_sz = sizeof(struct __riscv_q_ext_state);
 317 #elif defined(__aarch64__)
 318   unsigned struct_user_regs_struct_sz = sizeof(struct user_pt_regs);
 319   unsigned struct_user_fpregs_struct_sz = sizeof(struct user_fpsimd_state);
 320 #elif defined(__s390__)
 321   unsigned struct_user_regs_struct_sz = sizeof(struct _user_regs_struct);
 322   unsigned struct_user_fpregs_struct_sz = sizeof(struct _user_fpregs_struct);
 323 #else
 324   unsigned struct_user_regs_struct_sz = sizeof(struct user_regs_struct);
 325   unsigned struct_user_fpregs_struct_sz = sizeof(struct user_fpregs_struct);
 326 #endif // __mips64 || __powerpc64__ || __aarch64__
 327 #if defined(__x86_64) || defined(__mips64) || defined(__powerpc64__) || \
 328     defined(__aarch64__) || defined(__arm__) || defined(__s390__) ||    \
 329     SANITIZER_RISCV64
 330   unsigned struct_user_fpxregs_struct_sz = 0;
 331 #else
 332   unsigned struct_user_fpxregs_struct_sz = sizeof(struct user_fpxregs_struct);
 333 #endif // __x86_64 || __mips64 || __powerpc64__ || __aarch64__ || __arm__
 334 // || __s390__
 335 #ifdef __arm__
 336   unsigned struct_user_vfpregs_struct_sz = ARM_VFPREGS_SIZE;
 337 #else
 338   unsigned struct_user_vfpregs_struct_sz = 0;
 339 #endif
 340
 341   int ptrace_peektext = PTRACE_PEEKTEXT;
 342   int ptrace_peekdata = PTRACE_PEEKDATA;
 343   int ptrace_peekuser = PTRACE_PEEKUSER;
 344 #if (defined(PTRACE_GETREGS) && defined(PTRACE_SETREGS)) || \
 345     (defined(PT_GETREGS) && defined(PT_SETREGS))
 346   int ptrace_getregs = PTRACE_GETREGS;
 347   int ptrace_setregs = PTRACE_SETREGS;
 348 #else
 349   int ptrace_getregs = -1;
 350   int ptrace_setregs = -1;
 351 #endif
 352 #if (defined(PTRACE_GETFPREGS) && defined(PTRACE_SETFPREGS)) || \
 353     (defined(PT_GETFPREGS) && defined(PT_SETFPREGS))
 354   int ptrace_getfpregs = PTRACE_GETFPREGS;
 355   int ptrace_setfpregs = PTRACE_SETFPREGS;
 356 #else
 357   int ptrace_getfpregs = -1;
 358   int ptrace_setfpregs = -1;
 359 #endif
 360 #if (defined(PTRACE_GETFPXREGS) && defined(PTRACE_SETFPXREGS)) || \
 361     (defined(PT_GETFPXREGS) && defined(PT_SETFPXREGS))
 362   int ptrace_getfpxregs = PTRACE_GETFPXREGS;
 363   int ptrace_setfpxregs = PTRACE_SETFPXREGS;
 364 #else
 365   int ptrace_getfpxregs = -1;
 366   int ptrace_setfpxregs = -1;
 367 #endif // PTRACE_GETFPXREGS/PTRACE_SETFPXREGS
 368 #if defined(PTRACE_GETVFPREGS) && defined(PTRACE_SETVFPREGS)
 369   int ptrace_getvfpregs = PTRACE_GETVFPREGS;
 370   int ptrace_setvfpregs = PTRACE_SETVFPREGS;
 371 #else
 372   int ptrace_getvfpregs = -1;
 373   int ptrace_setvfpregs = -1;
 374 #endif
 375   int ptrace_geteventmsg = PTRACE_GETEVENTMSG;
 376 #if (defined(PTRACE_GETSIGINFO) && defined(PTRACE_SETSIGINFO)) ||              \
 377     (defined(PT_GETSIGINFO) && defined(PT_SETSIGINFO))
 378   int ptrace_getsiginfo = PTRACE_GETSIGINFO;
 379   int ptrace_setsiginfo = PTRACE_SETSIGINFO;
 380 #else
 381   int ptrace_getsiginfo = -1;
 382   int ptrace_setsiginfo = -1;
 383 #endif // PTRACE_GETSIGINFO/PTRACE_SETSIGINFO
 384 #if defined(PTRACE_GETREGSET) && defined(PTRACE_SETREGSET)
 385   int ptrace_getregset = PTRACE_GETREGSET;
 386   int ptrace_setregset = PTRACE_SETREGSET;
 387 #else
 388   int ptrace_getregset = -1;
 389   int ptrace_setregset = -1;
 390 #endif // PTRACE_GETREGSET/PTRACE_SETREGSET
 391 #endif
 392
 393   unsigned path_max = PATH_MAX;
 394
 395   // ioctl arguments
 396   unsigned struct_ifreq_sz = sizeof(struct ifreq);
 397   unsigned struct_termios_sz = sizeof(struct termios);
 398   unsigned struct_winsize_sz = sizeof(struct winsize);
 399
 400 #if SANITIZER_LINUX
 401   unsigned struct_arpreq_sz = sizeof(struct arpreq);
 402   unsigned struct_cdrom_msf_sz = sizeof(struct cdrom_msf);
 403   unsigned struct_cdrom_multisession_sz = sizeof(struct cdrom_multisession);
 404   unsigned struct_cdrom_read_audio_sz = sizeof(struct cdrom_read_audio);
 405   unsigned struct_cdrom_subchnl_sz = sizeof(struct cdrom_subchnl);
 406   unsigned struct_cdrom_ti_sz = sizeof(struct cdrom_ti);
 407   unsigned struct_cdrom_tocentry_sz = sizeof(struct cdrom_tocentry);
 408   unsigned struct_cdrom_tochdr_sz = sizeof(struct cdrom_tochdr);
 409   unsigned struct_cdrom_volctrl_sz = sizeof(struct cdrom_volctrl);
 410   unsigned struct_ff_effect_sz = sizeof(struct ff_effect);
 411   unsigned struct_floppy_drive_params_sz = sizeof(struct floppy_drive_params);
 412   unsigned struct_floppy_drive_struct_sz = sizeof(struct floppy_drive_struct);
 413   unsigned struct_floppy_fdc_state_sz = sizeof(struct floppy_fdc_state);
 414   unsigned struct_floppy_max_errors_sz = sizeof(struct floppy_max_errors);
 415   unsigned struct_floppy_raw_cmd_sz = sizeof(struct floppy_raw_cmd);
 416   unsigned struct_floppy_struct_sz = sizeof(struct floppy_struct);
 417   unsigned struct_floppy_write_errors_sz = sizeof(struct floppy_write_errors);
 418   unsigned struct_format_descr_sz = sizeof(struct format_descr);
 419   unsigned struct_hd_driveid_sz = sizeof(struct hd_driveid);
 420   unsigned struct_hd_geometry_sz = sizeof(struct hd_geometry);
 421   unsigned struct_input_absinfo_sz = sizeof(struct input_absinfo);
 422   unsigned struct_input_id_sz = sizeof(struct input_id);
 423   unsigned struct_mtpos_sz = sizeof(struct mtpos);
 424   unsigned struct_rtentry_sz = sizeof(struct rtentry);
 425   unsigned struct_termio_sz = sizeof(struct termio);
 426   unsigned struct_vt_consize_sz = sizeof(struct vt_consize);
 427   unsigned struct_vt_sizes_sz = sizeof(struct vt_sizes);
 428   unsigned struct_vt_stat_sz = sizeof(struct vt_stat);
 429 #endif // SANITIZER_LINUX
 430
 431 #if SANITIZER_LINUX
 432 #if SOUND_VERSION >= 0x040000
 433   unsigned struct_copr_buffer_sz = 0;
 434   unsigned struct_copr_debug_buf_sz = 0;
 435   unsigned struct_copr_msg_sz = 0;
 436 #else
 437   unsigned struct_copr_buffer_sz = sizeof(struct copr_buffer);
 438   unsigned struct_copr_debug_buf_sz = sizeof(struct copr_debug_buf);
 439   unsigned struct_copr_msg_sz = sizeof(struct copr_msg);
 440 #endif
 441   unsigned struct_midi_info_sz = sizeof(struct midi_info);
 442   unsigned struct_mtget_sz = sizeof(struct mtget);
 443   unsigned struct_mtop_sz = sizeof(struct mtop);
 444   unsigned struct_sbi_instrument_sz = sizeof(struct sbi_instrument);
 445   unsigned struct_seq_event_rec_sz = sizeof(struct seq_event_rec);
 446   unsigned struct_synth_info_sz = sizeof(struct synth_info);
 447   unsigned struct_vt_mode_sz = sizeof(struct vt_mode);
 448 #endif // SANITIZER_LINUX
 449
 450 #if SANITIZER_LINUX && !SANITIZER_ANDROID
 451   unsigned struct_ax25_parms_struct_sz = sizeof(struct ax25_parms_struct);
 452   unsigned struct_cyclades_monitor_sz = sizeof(struct cyclades_monitor);
 453 #if EV_VERSION > (0x010000)
 454   unsigned struct_input_keymap_entry_sz = sizeof(struct input_keymap_entry);
 455 #else
 456   unsigned struct_input_keymap_entry_sz = 0;
 457 #endif
 458   unsigned struct_ipx_config_data_sz = sizeof(struct ipx_config_data);
 459   unsigned struct_kbdiacrs_sz = sizeof(struct kbdiacrs);
 460   unsigned struct_kbentry_sz = sizeof(struct kbentry);
 461   unsigned struct_kbkeycode_sz = sizeof(struct kbkeycode);
 462   unsigned struct_kbsentry_sz = sizeof(struct kbsentry);
 463   unsigned struct_mtconfiginfo_sz = sizeof(struct mtconfiginfo);
 464   unsigned struct_nr_parms_struct_sz = sizeof(struct nr_parms_struct);
 465   unsigned struct_scc_modem_sz = sizeof(struct scc_modem);
 466   unsigned struct_scc_stat_sz = sizeof(struct scc_stat);
 467   unsigned struct_serial_multiport_struct_sz
 468       = sizeof(struct serial_multiport_struct);
 469   unsigned struct_serial_struct_sz = sizeof(struct serial_struct);
 470   unsigned struct_sockaddr_ax25_sz = sizeof(struct sockaddr_ax25);
 471   unsigned struct_unimapdesc_sz = sizeof(struct unimapdesc);
 472   unsigned struct_unimapinit_sz = sizeof(struct unimapinit);
 473 #endif // SANITIZER_LINUX && !SANITIZER_ANDROID
 474
 475 #if SANITIZER_LINUX && !SANITIZER_ANDROID
 476   unsigned struct_audio_buf_info_sz = sizeof(struct audio_buf_info);
 477   unsigned struct_ppp_stats_sz = sizeof(struct ppp_stats);
 478 #endif // (SANITIZER_LINUX || SANITIZER_FREEBSD) && !SANITIZER_ANDROID
 479
 480 #if !SANITIZER_ANDROID && !SANITIZER_MAC
 481   unsigned struct_sioc_sg_req_sz = sizeof(struct sioc_sg_req);
 482   unsigned struct_sioc_vif_req_sz = sizeof(struct sioc_vif_req);
 483 #endif
 484
 485   const unsigned long __sanitizer_bufsiz = BUFSIZ;
 486
 487   const unsigned IOCTL_NOT_PRESENT = 0;
 488
 489   unsigned IOCTL_FIOASYNC = FIOASYNC;
 490   unsigned IOCTL_FIOCLEX = FIOCLEX;
 491   unsigned IOCTL_FIOGETOWN = FIOGETOWN;
 492   unsigned IOCTL_FIONBIO = FIONBIO;
 493   unsigned IOCTL_FIONCLEX = FIONCLEX;
 494   unsigned IOCTL_FIOSETOWN = FIOSETOWN;
 495   unsigned IOCTL_SIOCADDMULTI = SIOCADDMULTI;
 496   unsigned IOCTL_SIOCATMARK = SIOCATMARK;
 497   unsigned IOCTL_SIOCDELMULTI = SIOCDELMULTI;
 498   unsigned IOCTL_SIOCGIFADDR = SIOCGIFADDR;
 499   unsigned IOCTL_SIOCGIFBRDADDR = SIOCGIFBRDADDR;
 500   unsigned IOCTL_SIOCGIFCONF = SIOCGIFCONF;
 501   unsigned IOCTL_SIOCGIFDSTADDR = SIOCGIFDSTADDR;
 502   unsigned IOCTL_SIOCGIFFLAGS = SIOCGIFFLAGS;
 503   unsigned IOCTL_SIOCGIFMETRIC = SIOCGIFMETRIC;
 504   unsigned IOCTL_SIOCGIFMTU = SIOCGIFMTU;
 505   unsigned IOCTL_SIOCGIFNETMASK = SIOCGIFNETMASK;
 506   unsigned IOCTL_SIOCGPGRP = SIOCGPGRP;
 507   unsigned IOCTL_SIOCSIFADDR = SIOCSIFADDR;
 508   unsigned IOCTL_SIOCSIFBRDADDR = SIOCSIFBRDADDR;
 509   unsigned IOCTL_SIOCSIFDSTADDR = SIOCSIFDSTADDR;
 510   unsigned IOCTL_SIOCSIFFLAGS = SIOCSIFFLAGS;
 511   unsigned IOCTL_SIOCSIFMETRIC = SIOCSIFMETRIC;
 512   unsigned IOCTL_SIOCSIFMTU = SIOCSIFMTU;
 513   unsigned IOCTL_SIOCSIFNETMASK = SIOCSIFNETMASK;
 514   unsigned IOCTL_SIOCSPGRP = SIOCSPGRP;
 515   unsigned IOCTL_TIOCCONS = TIOCCONS;
 516   unsigned IOCTL_TIOCEXCL = TIOCEXCL;
 517   unsigned IOCTL_TIOCGETD = TIOCGETD;
 518   unsigned IOCTL_TIOCGPGRP = TIOCGPGRP;
 519   unsigned IOCTL_TIOCGWINSZ = TIOCGWINSZ;
 520   unsigned IOCTL_TIOCMBIC = TIOCMBIC;
 521   unsigned IOCTL_TIOCMBIS = TIOCMBIS;
 522   unsigned IOCTL_TIOCMGET = TIOCMGET;
 523   unsigned IOCTL_TIOCMSET = TIOCMSET;
 524   unsigned IOCTL_TIOCNOTTY = TIOCNOTTY;
 525   unsigned IOCTL_TIOCNXCL = TIOCNXCL;
 526   unsigned IOCTL_TIOCOUTQ = TIOCOUTQ;
 527   unsigned IOCTL_TIOCPKT = TIOCPKT;
 528   unsigned IOCTL_TIOCSCTTY = TIOCSCTTY;
 529   unsigned IOCTL_TIOCSETD = TIOCSETD;
 530   unsigned IOCTL_TIOCSPGRP = TIOCSPGRP;
 531   unsigned IOCTL_TIOCSTI = TIOCSTI;
 532   unsigned IOCTL_TIOCSWINSZ = TIOCSWINSZ;
 533 #if SANITIZER_LINUX && !SANITIZER_ANDROID
 534   unsigned IOCTL_SIOCGETSGCNT = SIOCGETSGCNT;
 535   unsigned IOCTL_SIOCGETVIFCNT = SIOCGETVIFCNT;
 536 #endif
 537
 538 #if SANITIZER_LINUX
 539   unsigned IOCTL_EVIOCGABS = EVIOCGABS(0);
 540   unsigned IOCTL_EVIOCGBIT = EVIOCGBIT(0, 0);
 541   unsigned IOCTL_EVIOCGEFFECTS = EVIOCGEFFECTS;
 542   unsigned IOCTL_EVIOCGID = EVIOCGID;
 543   unsigned IOCTL_EVIOCGKEY = EVIOCGKEY(0);
 544   unsigned IOCTL_EVIOCGKEYCODE = EVIOCGKEYCODE;
 545   unsigned IOCTL_EVIOCGLED = EVIOCGLED(0);
 546   unsigned IOCTL_EVIOCGNAME = EVIOCGNAME(0);
 547   unsigned IOCTL_EVIOCGPHYS = EVIOCGPHYS(0);
 548   unsigned IOCTL_EVIOCGRAB = EVIOCGRAB;
 549   unsigned IOCTL_EVIOCGREP = EVIOCGREP;
 550   unsigned IOCTL_EVIOCGSND = EVIOCGSND(0);
 551   unsigned IOCTL_EVIOCGSW = EVIOCGSW(0);
 552   unsigned IOCTL_EVIOCGUNIQ = EVIOCGUNIQ(0);
 553   unsigned IOCTL_EVIOCGVERSION = EVIOCGVERSION;
 554   unsigned IOCTL_EVIOCRMFF = EVIOCRMFF;
 555   unsigned IOCTL_EVIOCSABS = EVIOCSABS(0);
 556   unsigned IOCTL_EVIOCSFF = EVIOCSFF;
 557   unsigned IOCTL_EVIOCSKEYCODE = EVIOCSKEYCODE;
 558   unsigned IOCTL_EVIOCSREP = EVIOCSREP;
 559   unsigned IOCTL_BLKFLSBUF = BLKFLSBUF;
 560   unsigned IOCTL_BLKGETSIZE = BLKGETSIZE;
 561   unsigned IOCTL_BLKRAGET = BLKRAGET;
 562   unsigned IOCTL_BLKRASET = BLKRASET;
 563   unsigned IOCTL_BLKROGET = BLKROGET;
 564   unsigned IOCTL_BLKROSET = BLKROSET;
 565   unsigned IOCTL_BLKRRPART = BLKRRPART;
 566   unsigned IOCTL_CDROMAUDIOBUFSIZ = CDROMAUDIOBUFSIZ;
 567   unsigned IOCTL_CDROMEJECT = CDROMEJECT;
 568   unsigned IOCTL_CDROMEJECT_SW = CDROMEJECT_SW;
 569   unsigned IOCTL_CDROMMULTISESSION = CDROMMULTISESSION;
 570   unsigned IOCTL_CDROMPAUSE = CDROMPAUSE;
 571   unsigned IOCTL_CDROMPLAYMSF = CDROMPLAYMSF;
 572   unsigned IOCTL_CDROMPLAYTRKIND = CDROMPLAYTRKIND;
 573   unsigned IOCTL_CDROMREADAUDIO = CDROMREADAUDIO;
 574   unsigned IOCTL_CDROMREADCOOKED = CDROMREADCOOKED;
 575   unsigned IOCTL_CDROMREADMODE1 = CDROMREADMODE1;
 576   unsigned IOCTL_CDROMREADMODE2 = CDROMREADMODE2;
 577   unsigned IOCTL_CDROMREADRAW = CDROMREADRAW;
 578   unsigned IOCTL_CDROMREADTOCENTRY = CDROMREADTOCENTRY;
 579   unsigned IOCTL_CDROMREADTOCHDR = CDROMREADTOCHDR;
 580   unsigned IOCTL_CDROMRESET = CDROMRESET;
 581   unsigned IOCTL_CDROMRESUME = CDROMRESUME;
 582   unsigned IOCTL_CDROMSEEK = CDROMSEEK;
 583   unsigned IOCTL_CDROMSTART = CDROMSTART;
 584   unsigned IOCTL_CDROMSTOP = CDROMSTOP;
 585   unsigned IOCTL_CDROMSUBCHNL = CDROMSUBCHNL;
 586   unsigned IOCTL_CDROMVOLCTRL = CDROMVOLCTRL;
 587   unsigned IOCTL_CDROMVOLREAD = CDROMVOLREAD;
 588   unsigned IOCTL_CDROM_GET_UPC = CDROM_GET_UPC;
 589   unsigned IOCTL_FDCLRPRM = FDCLRPRM;
 590   unsigned IOCTL_FDDEFPRM = FDDEFPRM;
 591   unsigned IOCTL_FDFLUSH = FDFLUSH;
 592   unsigned IOCTL_FDFMTBEG = FDFMTBEG;
 593   unsigned IOCTL_FDFMTEND = FDFMTEND;
 594   unsigned IOCTL_FDFMTTRK = FDFMTTRK;
 595   unsigned IOCTL_FDGETDRVPRM = FDGETDRVPRM;
 596   unsigned IOCTL_FDGETDRVSTAT = FDGETDRVSTAT;
 597   unsigned IOCTL_FDGETDRVTYP = FDGETDRVTYP;
 598   unsigned IOCTL_FDGETFDCSTAT = FDGETFDCSTAT;
 599   unsigned IOCTL_FDGETMAXERRS = FDGETMAXERRS;
 600   unsigned IOCTL_FDGETPRM = FDGETPRM;
 601   unsigned IOCTL_FDMSGOFF = FDMSGOFF;
 602   unsigned IOCTL_FDMSGON = FDMSGON;
 603   unsigned IOCTL_FDPOLLDRVSTAT = FDPOLLDRVSTAT;
 604   unsigned IOCTL_FDRAWCMD = FDRAWCMD;
 605   unsigned IOCTL_FDRESET = FDRESET;
 606   unsigned IOCTL_FDSETDRVPRM = FDSETDRVPRM;
 607   unsigned IOCTL_FDSETEMSGTRESH = FDSETEMSGTRESH;
 608   unsigned IOCTL_FDSETMAXERRS = FDSETMAXERRS;
 609   unsigned IOCTL_FDSETPRM = FDSETPRM;
 610   unsigned IOCTL_FDTWADDLE = FDTWADDLE;
 611   unsigned IOCTL_FDWERRORCLR = FDWERRORCLR;
 612   unsigned IOCTL_FDWERRORGET = FDWERRORGET;
 613   unsigned IOCTL_HDIO_DRIVE_CMD = HDIO_DRIVE_CMD;
 614   unsigned IOCTL_HDIO_GETGEO = HDIO_GETGEO;
 615   unsigned IOCTL_HDIO_GET_32BIT = HDIO_GET_32BIT;
 616   unsigned IOCTL_HDIO_GET_DMA = HDIO_GET_DMA;
 617   unsigned IOCTL_HDIO_GET_IDENTITY = HDIO_GET_IDENTITY;
 618   unsigned IOCTL_HDIO_GET_KEEPSETTINGS = HDIO_GET_KEEPSETTINGS;
 619   unsigned IOCTL_HDIO_GET_MULTCOUNT = HDIO_GET_MULTCOUNT;
 620   unsigned IOCTL_HDIO_GET_NOWERR = HDIO_GET_NOWERR;
 621   unsigned IOCTL_HDIO_GET_UNMASKINTR = HDIO_GET_UNMASKINTR;
 622   unsigned IOCTL_HDIO_SET_32BIT = HDIO_SET_32BIT;
 623   unsigned IOCTL_HDIO_SET_DMA = HDIO_SET_DMA;
 624   unsigned IOCTL_HDIO_SET_KEEPSETTINGS = HDIO_SET_KEEPSETTINGS;
 625   unsigned IOCTL_HDIO_SET_MULTCOUNT = HDIO_SET_MULTCOUNT;
 626   unsigned IOCTL_HDIO_SET_NOWERR = HDIO_SET_NOWERR;
 627   unsigned IOCTL_HDIO_SET_UNMASKINTR = HDIO_SET_UNMASKINTR;
 628   unsigned IOCTL_MTIOCPOS = MTIOCPOS;
 629   unsigned IOCTL_PPPIOCGASYNCMAP = PPPIOCGASYNCMAP;
 630   unsigned IOCTL_PPPIOCGDEBUG = PPPIOCGDEBUG;
 631   unsigned IOCTL_PPPIOCGFLAGS = PPPIOCGFLAGS;
 632   unsigned IOCTL_PPPIOCGUNIT = PPPIOCGUNIT;
 633   unsigned IOCTL_PPPIOCGXASYNCMAP = PPPIOCGXASYNCMAP;
 634   unsigned IOCTL_PPPIOCSASYNCMAP = PPPIOCSASYNCMAP;
 635   unsigned IOCTL_PPPIOCSDEBUG = PPPIOCSDEBUG;
 636   unsigned IOCTL_PPPIOCSFLAGS = PPPIOCSFLAGS;
 637   unsigned IOCTL_PPPIOCSMAXCID = PPPIOCSMAXCID;
 638   unsigned IOCTL_PPPIOCSMRU = PPPIOCSMRU;
 639   unsigned IOCTL_PPPIOCSXASYNCMAP = PPPIOCSXASYNCMAP;
 640   unsigned IOCTL_SIOCADDRT = SIOCADDRT;
 641   unsigned IOCTL_SIOCDARP = SIOCDARP;
 642   unsigned IOCTL_SIOCDELRT = SIOCDELRT;
 643   unsigned IOCTL_SIOCDRARP = SIOCDRARP;
 644   unsigned IOCTL_SIOCGARP = SIOCGARP;
 645   unsigned IOCTL_SIOCGIFENCAP = SIOCGIFENCAP;
 646   unsigned IOCTL_SIOCGIFHWADDR = SIOCGIFHWADDR;
 647   unsigned IOCTL_SIOCGIFMAP = SIOCGIFMAP;
 648   unsigned IOCTL_SIOCGIFMEM = SIOCGIFMEM;
 649   unsigned IOCTL_SIOCGIFNAME = SIOCGIFNAME;
 650   unsigned IOCTL_SIOCGIFSLAVE = SIOCGIFSLAVE;
 651   unsigned IOCTL_SIOCGRARP = SIOCGRARP;
 652   unsigned IOCTL_SIOCGSTAMP = SIOCGSTAMP;
 653   unsigned IOCTL_SIOCSARP = SIOCSARP;
 654   unsigned IOCTL_SIOCSIFENCAP = SIOCSIFENCAP;
 655   unsigned IOCTL_SIOCSIFHWADDR = SIOCSIFHWADDR;
 656   unsigned IOCTL_SIOCSIFLINK = SIOCSIFLINK;
 657   unsigned IOCTL_SIOCSIFMAP = SIOCSIFMAP;
 658   unsigned IOCTL_SIOCSIFMEM = SIOCSIFMEM;
 659   unsigned IOCTL_SIOCSIFSLAVE = SIOCSIFSLAVE;
 660   unsigned IOCTL_SIOCSRARP = SIOCSRARP;
 661 # if SOUND_VERSION >= 0x040000
 662   unsigned IOCTL_SNDCTL_COPR_HALT = IOCTL_NOT_PRESENT;
 663   unsigned IOCTL_SNDCTL_COPR_LOAD = IOCTL_NOT_PRESENT;
 664   unsigned IOCTL_SNDCTL_COPR_RCODE = IOCTL_NOT_PRESENT;
 665   unsigned IOCTL_SNDCTL_COPR_RCVMSG = IOCTL_NOT_PRESENT;
 666   unsigned IOCTL_SNDCTL_COPR_RDATA = IOCTL_NOT_PRESENT;
 667   unsigned IOCTL_SNDCTL_COPR_RESET = IOCTL_NOT_PRESENT;
 668   unsigned IOCTL_SNDCTL_COPR_RUN = IOCTL_NOT_PRESENT;
 669   unsigned IOCTL_SNDCTL_COPR_SENDMSG = IOCTL_NOT_PRESENT;
 670   unsigned IOCTL_SNDCTL_COPR_WCODE = IOCTL_NOT_PRESENT;
 671   unsigned IOCTL_SNDCTL_COPR_WDATA = IOCTL_NOT_PRESENT;
 672   unsigned IOCTL_SOUND_PCM_READ_BITS = IOCTL_NOT_PRESENT;
 673   unsigned IOCTL_SOUND_PCM_READ_CHANNELS = IOCTL_NOT_PRESENT;
 674   unsigned IOCTL_SOUND_PCM_READ_FILTER = IOCTL_NOT_PRESENT;
 675   unsigned IOCTL_SOUND_PCM_READ_RATE = IOCTL_NOT_PRESENT;
 676   unsigned IOCTL_SOUND_PCM_WRITE_CHANNELS = IOCTL_NOT_PRESENT;
 677   unsigned IOCTL_SOUND_PCM_WRITE_FILTER = IOCTL_NOT_PRESENT;
 678 # else  // SOUND_VERSION
 679   unsigned IOCTL_SNDCTL_COPR_HALT = SNDCTL_COPR_HALT;
 680   unsigned IOCTL_SNDCTL_COPR_LOAD = SNDCTL_COPR_LOAD;
 681   unsigned IOCTL_SNDCTL_COPR_RCODE = SNDCTL_COPR_RCODE;
 682   unsigned IOCTL_SNDCTL_COPR_RCVMSG = SNDCTL_COPR_RCVMSG;
 683   unsigned IOCTL_SNDCTL_COPR_RDATA = SNDCTL_COPR_RDATA;
 684   unsigned IOCTL_SNDCTL_COPR_RESET = SNDCTL_COPR_RESET;
 685   unsigned IOCTL_SNDCTL_COPR_RUN = SNDCTL_COPR_RUN;
 686   unsigned IOCTL_SNDCTL_COPR_SENDMSG = SNDCTL_COPR_SENDMSG;
 687   unsigned IOCTL_SNDCTL_COPR_WCODE = SNDCTL_COPR_WCODE;
 688   unsigned IOCTL_SNDCTL_COPR_WDATA = SNDCTL_COPR_WDATA;
 689   unsigned IOCTL_SOUND_PCM_READ_BITS = SOUND_PCM_READ_BITS;
 690   unsigned IOCTL_SOUND_PCM_READ_CHANNELS = SOUND_PCM_READ_CHANNELS;
 691   unsigned IOCTL_SOUND_PCM_READ_FILTER = SOUND_PCM_READ_FILTER;
 692   unsigned IOCTL_SOUND_PCM_READ_RATE = SOUND_PCM_READ_RATE;
 693   unsigned IOCTL_SOUND_PCM_WRITE_CHANNELS = SOUND_PCM_WRITE_CHANNELS;
 694   unsigned IOCTL_SOUND_PCM_WRITE_FILTER = SOUND_PCM_WRITE_FILTER;
 695 #endif // SOUND_VERSION
 696   unsigned IOCTL_TCFLSH = TCFLSH;
 697   unsigned IOCTL_TCGETA = TCGETA;
 698   unsigned IOCTL_TCGETS = TCGETS;
 699   unsigned IOCTL_TCSBRK = TCSBRK;
 700   unsigned IOCTL_TCSBRKP = TCSBRKP;
 701   unsigned IOCTL_TCSETA = TCSETA;
 702   unsigned IOCTL_TCSETAF = TCSETAF;
 703   unsigned IOCTL_TCSETAW = TCSETAW;
 704   unsigned IOCTL_TCSETS = TCSETS;
 705   unsigned IOCTL_TCSETSF = TCSETSF;
 706   unsigned IOCTL_TCSETSW = TCSETSW;
 707   unsigned IOCTL_TCXONC = TCXONC;
 708   unsigned IOCTL_TIOCGLCKTRMIOS = TIOCGLCKTRMIOS;
 709   unsigned IOCTL_TIOCGSOFTCAR = TIOCGSOFTCAR;
 710   unsigned IOCTL_TIOCINQ = TIOCINQ;
 711   unsigned IOCTL_TIOCLINUX = TIOCLINUX;
 712   unsigned IOCTL_TIOCSERCONFIG = TIOCSERCONFIG;
 713   unsigned IOCTL_TIOCSERGETLSR = TIOCSERGETLSR;
 714   unsigned IOCTL_TIOCSERGWILD = TIOCSERGWILD;
 715   unsigned IOCTL_TIOCSERSWILD = TIOCSERSWILD;
 716   unsigned IOCTL_TIOCSLCKTRMIOS = TIOCSLCKTRMIOS;
 717   unsigned IOCTL_TIOCSSOFTCAR = TIOCSSOFTCAR;
 718   unsigned IOCTL_VT_DISALLOCATE = VT_DISALLOCATE;
 719   unsigned IOCTL_VT_GETSTATE = VT_GETSTATE;
 720   unsigned IOCTL_VT_RESIZE = VT_RESIZE;
 721   unsigned IOCTL_VT_RESIZEX = VT_RESIZEX;
 722   unsigned IOCTL_VT_SENDSIG = VT_SENDSIG;
 723   unsigned IOCTL_MTIOCGET = MTIOCGET;
 724   unsigned IOCTL_MTIOCTOP = MTIOCTOP;
 725   unsigned IOCTL_SNDCTL_DSP_GETBLKSIZE = SNDCTL_DSP_GETBLKSIZE;
 726   unsigned IOCTL_SNDCTL_DSP_GETFMTS = SNDCTL_DSP_GETFMTS;
 727   unsigned IOCTL_SNDCTL_DSP_NONBLOCK = SNDCTL_DSP_NONBLOCK;
 728   unsigned IOCTL_SNDCTL_DSP_POST = SNDCTL_DSP_POST;
 729   unsigned IOCTL_SNDCTL_DSP_RESET = SNDCTL_DSP_RESET;
 730   unsigned IOCTL_SNDCTL_DSP_SETFMT = SNDCTL_DSP_SETFMT;
 731   unsigned IOCTL_SNDCTL_DSP_SETFRAGMENT = SNDCTL_DSP_SETFRAGMENT;
 732   unsigned IOCTL_SNDCTL_DSP_SPEED = SNDCTL_DSP_SPEED;
 733   unsigned IOCTL_SNDCTL_DSP_STEREO = SNDCTL_DSP_STEREO;
 734   unsigned IOCTL_SNDCTL_DSP_SUBDIVIDE = SNDCTL_DSP_SUBDIVIDE;
 735   unsigned IOCTL_SNDCTL_DSP_SYNC = SNDCTL_DSP_SYNC;
 736   unsigned IOCTL_SNDCTL_FM_4OP_ENABLE = SNDCTL_FM_4OP_ENABLE;
 737   unsigned IOCTL_SNDCTL_FM_LOAD_INSTR = SNDCTL_FM_LOAD_INSTR;
 738   unsigned IOCTL_SNDCTL_MIDI_INFO = SNDCTL_MIDI_INFO;
 739   unsigned IOCTL_SNDCTL_MIDI_PRETIME = SNDCTL_MIDI_PRETIME;
 740   unsigned IOCTL_SNDCTL_SEQ_CTRLRATE = SNDCTL_SEQ_CTRLRATE;
 741   unsigned IOCTL_SNDCTL_SEQ_GETINCOUNT = SNDCTL_SEQ_GETINCOUNT;
 742   unsigned IOCTL_SNDCTL_SEQ_GETOUTCOUNT = SNDCTL_SEQ_GETOUTCOUNT;
 743   unsigned IOCTL_SNDCTL_SEQ_NRMIDIS = SNDCTL_SEQ_NRMIDIS;
 744   unsigned IOCTL_SNDCTL_SEQ_NRSYNTHS = SNDCTL_SEQ_NRSYNTHS;
 745   unsigned IOCTL_SNDCTL_SEQ_OUTOFBAND = SNDCTL_SEQ_OUTOFBAND;
 746   unsigned IOCTL_SNDCTL_SEQ_PANIC = SNDCTL_SEQ_PANIC;
 747   unsigned IOCTL_SNDCTL_SEQ_PERCMODE = SNDCTL_SEQ_PERCMODE;
 748   unsigned IOCTL_SNDCTL_SEQ_RESET = SNDCTL_SEQ_RESET;
 749   unsigned IOCTL_SNDCTL_SEQ_RESETSAMPLES = SNDCTL_SEQ_RESETSAMPLES;
 750   unsigned IOCTL_SNDCTL_SEQ_SYNC = SNDCTL_SEQ_SYNC;
 751   unsigned IOCTL_SNDCTL_SEQ_TESTMIDI = SNDCTL_SEQ_TESTMIDI;
 752   unsigned IOCTL_SNDCTL_SEQ_THRESHOLD = SNDCTL_SEQ_THRESHOLD;
 753   unsigned IOCTL_SNDCTL_SYNTH_INFO = SNDCTL_SYNTH_INFO;
 754   unsigned IOCTL_SNDCTL_SYNTH_MEMAVL = SNDCTL_SYNTH_MEMAVL;
 755   unsigned IOCTL_SNDCTL_TMR_CONTINUE = SNDCTL_TMR_CONTINUE;
 756   unsigned IOCTL_SNDCTL_TMR_METRONOME = SNDCTL_TMR_METRONOME;
 757   unsigned IOCTL_SNDCTL_TMR_SELECT = SNDCTL_TMR_SELECT;
 758   unsigned IOCTL_SNDCTL_TMR_SOURCE = SNDCTL_TMR_SOURCE;
 759   unsigned IOCTL_SNDCTL_TMR_START = SNDCTL_TMR_START;
 760   unsigned IOCTL_SNDCTL_TMR_STOP = SNDCTL_TMR_STOP;
 761   unsigned IOCTL_SNDCTL_TMR_TEMPO = SNDCTL_TMR_TEMPO;
 762   unsigned IOCTL_SNDCTL_TMR_TIMEBASE = SNDCTL_TMR_TIMEBASE;
 763   unsigned IOCTL_SOUND_MIXER_READ_ALTPCM = SOUND_MIXER_READ_ALTPCM;
 764   unsigned IOCTL_SOUND_MIXER_READ_BASS = SOUND_MIXER_READ_BASS;
 765   unsigned IOCTL_SOUND_MIXER_READ_CAPS = SOUND_MIXER_READ_CAPS;
 766   unsigned IOCTL_SOUND_MIXER_READ_CD = SOUND_MIXER_READ_CD;
 767   unsigned IOCTL_SOUND_MIXER_READ_DEVMASK = SOUND_MIXER_READ_DEVMASK;
 768   unsigned IOCTL_SOUND_MIXER_READ_ENHANCE = SOUND_MIXER_READ_ENHANCE;
 769   unsigned IOCTL_SOUND_MIXER_READ_IGAIN = SOUND_MIXER_READ_IGAIN;
 770   unsigned IOCTL_SOUND_MIXER_READ_IMIX = SOUND_MIXER_READ_IMIX;
 771   unsigned IOCTL_SOUND_MIXER_READ_LINE = SOUND_MIXER_READ_LINE;
 772   unsigned IOCTL_SOUND_MIXER_READ_LINE1 = SOUND_MIXER_READ_LINE1;
 773   unsigned IOCTL_SOUND_MIXER_READ_LINE2 = SOUND_MIXER_READ_LINE2;
 774   unsigned IOCTL_SOUND_MIXER_READ_LINE3 = SOUND_MIXER_READ_LINE3;
 775   unsigned IOCTL_SOUND_MIXER_READ_LOUD = SOUND_MIXER_READ_LOUD;
 776   unsigned IOCTL_SOUND_MIXER_READ_MIC = SOUND_MIXER_READ_MIC;
 777   unsigned IOCTL_SOUND_MIXER_READ_MUTE = SOUND_MIXER_READ_MUTE;
 778   unsigned IOCTL_SOUND_MIXER_READ_OGAIN = SOUND_MIXER_READ_OGAIN;
 779   unsigned IOCTL_SOUND_MIXER_READ_PCM = SOUND_MIXER_READ_PCM;
 780   unsigned IOCTL_SOUND_MIXER_READ_RECLEV = SOUND_MIXER_READ_RECLEV;
 781   unsigned IOCTL_SOUND_MIXER_READ_RECMASK = SOUND_MIXER_READ_RECMASK;
 782   unsigned IOCTL_SOUND_MIXER_READ_RECSRC = SOUND_MIXER_READ_RECSRC;
 783   unsigned IOCTL_SOUND_MIXER_READ_SPEAKER = SOUND_MIXER_READ_SPEAKER;
 784   unsigned IOCTL_SOUND_MIXER_READ_STEREODEVS = SOUND_MIXER_READ_STEREODEVS;
 785   unsigned IOCTL_SOUND_MIXER_READ_SYNTH = SOUND_MIXER_READ_SYNTH;
 786   unsigned IOCTL_SOUND_MIXER_READ_TREBLE = SOUND_MIXER_READ_TREBLE;
 787   unsigned IOCTL_SOUND_MIXER_READ_VOLUME = SOUND_MIXER_READ_VOLUME;
 788   unsigned IOCTL_SOUND_MIXER_WRITE_ALTPCM = SOUND_MIXER_WRITE_ALTPCM;
 789   unsigned IOCTL_SOUND_MIXER_WRITE_BASS = SOUND_MIXER_WRITE_BASS;
 790   unsigned IOCTL_SOUND_MIXER_WRITE_CD = SOUND_MIXER_WRITE_CD;
 791   unsigned IOCTL_SOUND_MIXER_WRITE_ENHANCE = SOUND_MIXER_WRITE_ENHANCE;
 792   unsigned IOCTL_SOUND_MIXER_WRITE_IGAIN = SOUND_MIXER_WRITE_IGAIN;
 793   unsigned IOCTL_SOUND_MIXER_WRITE_IMIX = SOUND_MIXER_WRITE_IMIX;
 794   unsigned IOCTL_SOUND_MIXER_WRITE_LINE = SOUND_MIXER_WRITE_LINE;
 795   unsigned IOCTL_SOUND_MIXER_WRITE_LINE1 = SOUND_MIXER_WRITE_LINE1;
 796   unsigned IOCTL_SOUND_MIXER_WRITE_LINE2 = SOUND_MIXER_WRITE_LINE2;
 797   unsigned IOCTL_SOUND_MIXER_WRITE_LINE3 = SOUND_MIXER_WRITE_LINE3;
 798   unsigned IOCTL_SOUND_MIXER_WRITE_LOUD = SOUND_MIXER_WRITE_LOUD;
 799   unsigned IOCTL_SOUND_MIXER_WRITE_MIC = SOUND_MIXER_WRITE_MIC;
 800   unsigned IOCTL_SOUND_MIXER_WRITE_MUTE = SOUND_MIXER_WRITE_MUTE;
 801   unsigned IOCTL_SOUND_MIXER_WRITE_OGAIN = SOUND_MIXER_WRITE_OGAIN;
 802   unsigned IOCTL_SOUND_MIXER_WRITE_PCM = SOUND_MIXER_WRITE_PCM;
 803   unsigned IOCTL_SOUND_MIXER_WRITE_RECLEV = SOUND_MIXER_WRITE_RECLEV;
 804   unsigned IOCTL_SOUND_MIXER_WRITE_RECSRC = SOUND_MIXER_WRITE_RECSRC;
 805   unsigned IOCTL_SOUND_MIXER_WRITE_SPEAKER = SOUND_MIXER_WRITE_SPEAKER;
 806   unsigned IOCTL_SOUND_MIXER_WRITE_SYNTH = SOUND_MIXER_WRITE_SYNTH;
 807   unsigned IOCTL_SOUND_MIXER_WRITE_TREBLE = SOUND_MIXER_WRITE_TREBLE;
 808   unsigned IOCTL_SOUND_MIXER_WRITE_VOLUME = SOUND_MIXER_WRITE_VOLUME;
 809   unsigned IOCTL_VT_ACTIVATE = VT_ACTIVATE;
 810   unsigned IOCTL_VT_GETMODE = VT_GETMODE;
 811   unsigned IOCTL_VT_OPENQRY = VT_OPENQRY;
 812   unsigned IOCTL_VT_RELDISP = VT_RELDISP;
 813   unsigned IOCTL_VT_SETMODE = VT_SETMODE;
 814   unsigned IOCTL_VT_WAITACTIVE = VT_WAITACTIVE;
 815 #endif // SANITIZER_LINUX
 816
 817 #if SANITIZER_LINUX && !SANITIZER_ANDROID
 818   unsigned IOCTL_CYGETDEFTHRESH = CYGETDEFTHRESH;
 819   unsigned IOCTL_CYGETDEFTIMEOUT = CYGETDEFTIMEOUT;
 820   unsigned IOCTL_CYGETMON = CYGETMON;
 821   unsigned IOCTL_CYGETTHRESH = CYGETTHRESH;
 822   unsigned IOCTL_CYGETTIMEOUT = CYGETTIMEOUT;
 823   unsigned IOCTL_CYSETDEFTHRESH = CYSETDEFTHRESH;
 824   unsigned IOCTL_CYSETDEFTIMEOUT = CYSETDEFTIMEOUT;
 825   unsigned IOCTL_CYSETTHRESH = CYSETTHRESH;
 826   unsigned IOCTL_CYSETTIMEOUT = CYSETTIMEOUT;
 827   unsigned IOCTL_EQL_EMANCIPATE = EQL_EMANCIPATE;
 828   unsigned IOCTL_EQL_ENSLAVE = EQL_ENSLAVE;
 829   unsigned IOCTL_EQL_GETMASTRCFG = EQL_GETMASTRCFG;
 830   unsigned IOCTL_EQL_GETSLAVECFG = EQL_GETSLAVECFG;
 831   unsigned IOCTL_EQL_SETMASTRCFG = EQL_SETMASTRCFG;
 832   unsigned IOCTL_EQL_SETSLAVECFG = EQL_SETSLAVECFG;
 833 #if EV_VERSION > (0x010000)
 834   unsigned IOCTL_EVIOCGKEYCODE_V2 = EVIOCGKEYCODE_V2;
 835   unsigned IOCTL_EVIOCGPROP = EVIOCGPROP(0);
 836   unsigned IOCTL_EVIOCSKEYCODE_V2 = EVIOCSKEYCODE_V2;
 837 #else
 838   unsigned IOCTL_EVIOCGKEYCODE_V2 = IOCTL_NOT_PRESENT;
 839   unsigned IOCTL_EVIOCGPROP = IOCTL_NOT_PRESENT;
 840   unsigned IOCTL_EVIOCSKEYCODE_V2 = IOCTL_NOT_PRESENT;
 841 #endif
 842   unsigned IOCTL_FS_IOC_GETFLAGS = FS_IOC_GETFLAGS;
 843   unsigned IOCTL_FS_IOC_GETVERSION = FS_IOC_GETVERSION;
 844   unsigned IOCTL_FS_IOC_SETFLAGS = FS_IOC_SETFLAGS;
 845   unsigned IOCTL_FS_IOC_SETVERSION = FS_IOC_SETVERSION;
 846   unsigned IOCTL_GIO_CMAP = GIO_CMAP;
 847   unsigned IOCTL_GIO_FONT = GIO_FONT;
 848   unsigned IOCTL_GIO_UNIMAP = GIO_UNIMAP;
 849   unsigned IOCTL_GIO_UNISCRNMAP = GIO_UNISCRNMAP;
 850   unsigned IOCTL_KDADDIO = KDADDIO;
 851   unsigned IOCTL_KDDELIO = KDDELIO;
 852   unsigned IOCTL_KDGETKEYCODE = KDGETKEYCODE;
 853   unsigned IOCTL_KDGKBDIACR = KDGKBDIACR;
 854   unsigned IOCTL_KDGKBENT = KDGKBENT;
 855   unsigned IOCTL_KDGKBLED = KDGKBLED;
 856   unsigned IOCTL_KDGKBMETA = KDGKBMETA;
 857   unsigned IOCTL_KDGKBSENT = KDGKBSENT;
 858   unsigned IOCTL_KDMAPDISP = KDMAPDISP;
 859   unsigned IOCTL_KDSETKEYCODE = KDSETKEYCODE;
 860   unsigned IOCTL_KDSIGACCEPT = KDSIGACCEPT;
 861   unsigned IOCTL_KDSKBDIACR = KDSKBDIACR;
 862   unsigned IOCTL_KDSKBENT = KDSKBENT;
 863   unsigned IOCTL_KDSKBLED = KDSKBLED;
 864   unsigned IOCTL_KDSKBMETA = KDSKBMETA;
 865   unsigned IOCTL_KDSKBSENT = KDSKBSENT;
 866   unsigned IOCTL_KDUNMAPDISP = KDUNMAPDISP;
 867   unsigned IOCTL_LPABORT = LPABORT;
 868   unsigned IOCTL_LPABORTOPEN = LPABORTOPEN;
 869   unsigned IOCTL_LPCAREFUL = LPCAREFUL;
 870   unsigned IOCTL_LPCHAR = LPCHAR;
 871   unsigned IOCTL_LPGETIRQ = LPGETIRQ;
 872   unsigned IOCTL_LPGETSTATUS = LPGETSTATUS;
 873   unsigned IOCTL_LPRESET = LPRESET;
 874   unsigned IOCTL_LPSETIRQ = LPSETIRQ;
 875   unsigned IOCTL_LPTIME = LPTIME;
 876   unsigned IOCTL_LPWAIT = LPWAIT;
 877   unsigned IOCTL_MTIOCGETCONFIG = MTIOCGETCONFIG;
 878   unsigned IOCTL_MTIOCSETCONFIG = MTIOCSETCONFIG;
 879   unsigned IOCTL_PIO_CMAP = PIO_CMAP;
 880   unsigned IOCTL_PIO_FONT = PIO_FONT;
 881   unsigned IOCTL_PIO_UNIMAP = PIO_UNIMAP;
 882   unsigned IOCTL_PIO_UNIMAPCLR = PIO_UNIMAPCLR;
 883   unsigned IOCTL_PIO_UNISCRNMAP = PIO_UNISCRNMAP;
 884   unsigned IOCTL_SCSI_IOCTL_GET_IDLUN = SCSI_IOCTL_GET_IDLUN;
 885   unsigned IOCTL_SCSI_IOCTL_PROBE_HOST = SCSI_IOCTL_PROBE_HOST;
 886   unsigned IOCTL_SCSI_IOCTL_TAGGED_DISABLE = SCSI_IOCTL_TAGGED_DISABLE;
 887   unsigned IOCTL_SCSI_IOCTL_TAGGED_ENABLE = SCSI_IOCTL_TAGGED_ENABLE;
 888   unsigned IOCTL_SIOCAIPXITFCRT = SIOCAIPXITFCRT;
 889   unsigned IOCTL_SIOCAIPXPRISLT = SIOCAIPXPRISLT;
 890   unsigned IOCTL_SIOCAX25ADDUID = SIOCAX25ADDUID;
 891   unsigned IOCTL_SIOCAX25DELUID = SIOCAX25DELUID;
 892   unsigned IOCTL_SIOCAX25GETPARMS = SIOCAX25GETPARMS;
 893   unsigned IOCTL_SIOCAX25GETUID = SIOCAX25GETUID;
 894   unsigned IOCTL_SIOCAX25NOUID = SIOCAX25NOUID;
 895   unsigned IOCTL_SIOCAX25SETPARMS = SIOCAX25SETPARMS;
 896   unsigned IOCTL_SIOCDEVPLIP = SIOCDEVPLIP;
 897   unsigned IOCTL_SIOCIPXCFGDATA = SIOCIPXCFGDATA;
 898   unsigned IOCTL_SIOCNRDECOBS = SIOCNRDECOBS;
 899   unsigned IOCTL_SIOCNRGETPARMS = SIOCNRGETPARMS;
 900   unsigned IOCTL_SIOCNRRTCTL = SIOCNRRTCTL;
 901   unsigned IOCTL_SIOCNRSETPARMS = SIOCNRSETPARMS;
 902   unsigned IOCTL_TIOCGSERIAL = TIOCGSERIAL;
 903   unsigned IOCTL_TIOCSERGETMULTI = TIOCSERGETMULTI;
 904   unsigned IOCTL_TIOCSERSETMULTI = TIOCSERSETMULTI;
 905   unsigned IOCTL_TIOCSSERIAL = TIOCSSERIAL;
 906 #endif // SANITIZER_LINUX && !SANITIZER_ANDROID
 907
 908 #if SANITIZER_LINUX && !SANITIZER_ANDROID
 909   unsigned IOCTL_GIO_SCRNMAP = GIO_SCRNMAP;
 910   unsigned IOCTL_KDDISABIO = KDDISABIO;
 911   unsigned IOCTL_KDENABIO = KDENABIO;
 912   unsigned IOCTL_KDGETLED = KDGETLED;
 913   unsigned IOCTL_KDGETMODE = KDGETMODE;
 914   unsigned IOCTL_KDGKBMODE = KDGKBMODE;
 915   unsigned IOCTL_KDGKBTYPE = KDGKBTYPE;
 916   unsigned IOCTL_KDMKTONE = KDMKTONE;
 917   unsigned IOCTL_KDSETLED = KDSETLED;
 918   unsigned IOCTL_KDSETMODE = KDSETMODE;
 919   unsigned IOCTL_KDSKBMODE = KDSKBMODE;
 920   unsigned IOCTL_KIOCSOUND = KIOCSOUND;
 921   unsigned IOCTL_PIO_SCRNMAP = PIO_SCRNMAP;
 922   unsigned IOCTL_SNDCTL_DSP_GETISPACE = SNDCTL_DSP_GETISPACE;
 923   unsigned IOCTL_SNDCTL_DSP_GETOSPACE = SNDCTL_DSP_GETOSPACE;
 924 #endif // (SANITIZER_LINUX || SANITIZER_FREEBSD) && !SANITIZER_ANDROID
 925
 926   const int si_SEGV_MAPERR = SEGV_MAPERR;
 927   const int si_SEGV_ACCERR = SEGV_ACCERR;
 928 } // namespace __sanitizer
 929
 930 using namespace __sanitizer;
 931
 932 COMPILER_CHECK(sizeof(__sanitizer_pthread_attr_t) >= sizeof(pthread_attr_t));
 933
 934 COMPILER_CHECK(sizeof(socklen_t) == sizeof(unsigned));
 935 CHECK_TYPE_SIZE(pthread_key_t);
 936
 937 #if SANITIZER_LINUX
 938 // FIXME: We define those on Linux and Mac, but only check on Linux.
 939 COMPILER_CHECK(IOC_NRBITS == _IOC_NRBITS);
 940 COMPILER_CHECK(IOC_TYPEBITS == _IOC_TYPEBITS);
 941 COMPILER_CHECK(IOC_SIZEBITS == _IOC_SIZEBITS);
 942 COMPILER_CHECK(IOC_DIRBITS == _IOC_DIRBITS);
 943 COMPILER_CHECK(IOC_NRMASK == _IOC_NRMASK);
 944 COMPILER_CHECK(IOC_TYPEMASK == _IOC_TYPEMASK);
 945 COMPILER_CHECK(IOC_SIZEMASK == _IOC_SIZEMASK);
 946 COMPILER_CHECK(IOC_DIRMASK == _IOC_DIRMASK);
 947 COMPILER_CHECK(IOC_NRSHIFT == _IOC_NRSHIFT);
 948 COMPILER_CHECK(IOC_TYPESHIFT == _IOC_TYPESHIFT);
 949 COMPILER_CHECK(IOC_SIZESHIFT == _IOC_SIZESHIFT);
 950 COMPILER_CHECK(IOC_DIRSHIFT == _IOC_DIRSHIFT);
 951 COMPILER_CHECK(IOC_NONE == _IOC_NONE);
 952 COMPILER_CHECK(IOC_WRITE == _IOC_WRITE);
 953 COMPILER_CHECK(IOC_READ == _IOC_READ);
 954 COMPILER_CHECK(EVIOC_ABS_MAX == ABS_MAX);
 955 COMPILER_CHECK(EVIOC_EV_MAX == EV_MAX);
 956 COMPILER_CHECK(IOC_SIZE(0x12345678) == _IOC_SIZE(0x12345678));
 957 COMPILER_CHECK(IOC_DIR(0x12345678) == _IOC_DIR(0x12345678));
 958 COMPILER_CHECK(IOC_NR(0x12345678) == _IOC_NR(0x12345678));
 959 COMPILER_CHECK(IOC_TYPE(0x12345678) == _IOC_TYPE(0x12345678));
 960 #endif // SANITIZER_LINUX
 961
 962 #if SANITIZER_LINUX || SANITIZER_FREEBSD
 963 // There are more undocumented fields in dl_phdr_info that we are not interested
 964 // in.
 965 COMPILER_CHECK(sizeof(__sanitizer_dl_phdr_info) <= sizeof(dl_phdr_info));
 966 CHECK_SIZE_AND_OFFSET(dl_phdr_info, dlpi_addr);
 967 CHECK_SIZE_AND_OFFSET(dl_phdr_info, dlpi_name);
 968 CHECK_SIZE_AND_OFFSET(dl_phdr_info, dlpi_phdr);
 969 CHECK_SIZE_AND_OFFSET(dl_phdr_info, dlpi_phnum);
 970 #endif // SANITIZER_LINUX || SANITIZER_FREEBSD
 971
 972 #if (SANITIZER_LINUX || SANITIZER_FREEBSD) && !SANITIZER_ANDROID
 973 CHECK_TYPE_SIZE(glob_t);
 974 CHECK_SIZE_AND_OFFSET(glob_t, gl_pathc);
 975 CHECK_SIZE_AND_OFFSET(glob_t, gl_pathv);
 976 CHECK_SIZE_AND_OFFSET(glob_t, gl_offs);
 977 CHECK_SIZE_AND_OFFSET(glob_t, gl_flags);
 978 CHECK_SIZE_AND_OFFSET(glob_t, gl_closedir);
 979 CHECK_SIZE_AND_OFFSET(glob_t, gl_readdir);
 980 CHECK_SIZE_AND_OFFSET(glob_t, gl_opendir);
 981 CHECK_SIZE_AND_OFFSET(glob_t, gl_lstat);
 982 CHECK_SIZE_AND_OFFSET(glob_t, gl_stat);
 983 #endif
 984
 985 CHECK_TYPE_SIZE(addrinfo);
 986 CHECK_SIZE_AND_OFFSET(addrinfo, ai_flags);
 987 CHECK_SIZE_AND_OFFSET(addrinfo, ai_family);
 988 CHECK_SIZE_AND_OFFSET(addrinfo, ai_socktype);
 989 CHECK_SIZE_AND_OFFSET(addrinfo, ai_protocol);
 990 CHECK_SIZE_AND_OFFSET(addrinfo, ai_protocol);
 991 CHECK_SIZE_AND_OFFSET(addrinfo, ai_addrlen);
 992 CHECK_SIZE_AND_OFFSET(addrinfo, ai_canonname);
 993 CHECK_SIZE_AND_OFFSET(addrinfo, ai_addr);
 994
 995 CHECK_TYPE_SIZE(hostent);
 996 CHECK_SIZE_AND_OFFSET(hostent, h_name);
 997 CHECK_SIZE_AND_OFFSET(hostent, h_aliases);
 998 CHECK_SIZE_AND_OFFSET(hostent, h_addrtype);
 999 CHECK_SIZE_AND_OFFSET(hostent, h_length);
1000 CHECK_SIZE_AND_OFFSET(hostent, h_addr_list);
1001
1002 CHECK_TYPE_SIZE(iovec);
1003 CHECK_SIZE_AND_OFFSET(iovec, iov_base);
1004 CHECK_SIZE_AND_OFFSET(iovec, iov_len);
1005
1006 CHECK_TYPE_SIZE(msghdr);
1007 CHECK_SIZE_AND_OFFSET(msghdr, msg_name);
1008 CHECK_SIZE_AND_OFFSET(msghdr, msg_namelen);
1009 CHECK_SIZE_AND_OFFSET(msghdr, msg_iov);
1010 CHECK_SIZE_AND_OFFSET(msghdr, msg_iovlen);
1011 CHECK_SIZE_AND_OFFSET(msghdr, msg_control);
1012 CHECK_SIZE_AND_OFFSET(msghdr, msg_controllen);
1013 CHECK_SIZE_AND_OFFSET(msghdr, msg_flags);
1014
1015 CHECK_TYPE_SIZE(cmsghdr);
1016 CHECK_SIZE_AND_OFFSET(cmsghdr, cmsg_len);
1017 CHECK_SIZE_AND_OFFSET(cmsghdr, cmsg_level);
1018 CHECK_SIZE_AND_OFFSET(cmsghdr, cmsg_type);
1019
1020 #if SANITIZER_LINUX && (__ANDROID_API__ >= 21 || __GLIBC_PREREQ (2, 14))
1021 CHECK_TYPE_SIZE(mmsghdr);
1022 CHECK_SIZE_AND_OFFSET(mmsghdr, msg_hdr);
1023 CHECK_SIZE_AND_OFFSET(mmsghdr, msg_len);
1024 #endif
1025
1026 COMPILER_CHECK(sizeof(__sanitizer_dirent) <= sizeof(dirent));
1027 CHECK_SIZE_AND_OFFSET(dirent, d_ino);
1028 #if SANITIZER_MAC
1029 CHECK_SIZE_AND_OFFSET(dirent, d_seekoff);
1030 #elif SANITIZER_FREEBSD
1031 // There is no 'd_off' field on FreeBSD.
1032 #else
1033 CHECK_SIZE_AND_OFFSET(dirent, d_off);
1034 #endif
1035 CHECK_SIZE_AND_OFFSET(dirent, d_reclen);
1036
1037 #if SANITIZER_LINUX && !SANITIZER_ANDROID
1038 COMPILER_CHECK(sizeof(__sanitizer_dirent64) <= sizeof(dirent64));
1039 CHECK_SIZE_AND_OFFSET(dirent64, d_ino);
1040 CHECK_SIZE_AND_OFFSET(dirent64, d_off);
1041 CHECK_SIZE_AND_OFFSET(dirent64, d_reclen);
1042 #endif
1043
1044 CHECK_TYPE_SIZE(ifconf);
1045 CHECK_SIZE_AND_OFFSET(ifconf, ifc_len);
1046 CHECK_SIZE_AND_OFFSET(ifconf, ifc_ifcu);
1047
1048 CHECK_TYPE_SIZE(pollfd);
1049 CHECK_SIZE_AND_OFFSET(pollfd, fd);
1050 CHECK_SIZE_AND_OFFSET(pollfd, events);
1051 CHECK_SIZE_AND_OFFSET(pollfd, revents);
1052
1053 CHECK_TYPE_SIZE(nfds_t);
1054
1055 CHECK_TYPE_SIZE(sigset_t);
1056
1057 COMPILER_CHECK(sizeof(__sanitizer_sigaction) == sizeof(struct sigaction));
1058 // Can't write checks for sa_handler and sa_sigaction due to them being
1059 // preprocessor macros.
1060 CHECK_STRUCT_SIZE_AND_OFFSET(sigaction, sa_mask);
1061 #if !defined(__s390x__) || __GLIBC_PREREQ (2, 20)
1062 // On s390x glibc 2.19 and earlier sa_flags was unsigned long, and sa_resv
1063 // didn't exist.
1064 CHECK_STRUCT_SIZE_AND_OFFSET(sigaction, sa_flags);
1065 #endif
1066 #if SANITIZER_LINUX && (!SANITIZER_ANDROID || !SANITIZER_MIPS32)
1067 CHECK_STRUCT_SIZE_AND_OFFSET(sigaction, sa_restorer);
1068 #endif
1069
1070 #if SANITIZER_LINUX
1071 CHECK_TYPE_SIZE(__sysctl_args);
1072 CHECK_SIZE_AND_OFFSET(__sysctl_args, name);
1073 CHECK_SIZE_AND_OFFSET(__sysctl_args, nlen);
1074 CHECK_SIZE_AND_OFFSET(__sysctl_args, oldval);
1075 CHECK_SIZE_AND_OFFSET(__sysctl_args, oldlenp);
1076 CHECK_SIZE_AND_OFFSET(__sysctl_args, newval);
1077 CHECK_SIZE_AND_OFFSET(__sysctl_args, newlen);
1078
1079 CHECK_TYPE_SIZE(__kernel_uid_t);
1080 CHECK_TYPE_SIZE(__kernel_gid_t);
1081
1082 #if SANITIZER_USES_UID16_SYSCALLS
1083 CHECK_TYPE_SIZE(__kernel_old_uid_t);
1084 CHECK_TYPE_SIZE(__kernel_old_gid_t);
1085 #endif
1086
1087 CHECK_TYPE_SIZE(__kernel_off_t);
1088 CHECK_TYPE_SIZE(__kernel_loff_t);
1089 CHECK_TYPE_SIZE(__kernel_fd_set);
1090 #endif
1091
1092 #if !SANITIZER_ANDROID
1093 CHECK_TYPE_SIZE(wordexp_t);
1094 CHECK_SIZE_AND_OFFSET(wordexp_t, we_wordc);
1095 CHECK_SIZE_AND_OFFSET(wordexp_t, we_wordv);
1096 CHECK_SIZE_AND_OFFSET(wordexp_t, we_offs);
1097 #endif
1098
1099 CHECK_TYPE_SIZE(tm);
1100 CHECK_SIZE_AND_OFFSET(tm, tm_sec);
1101 CHECK_SIZE_AND_OFFSET(tm, tm_min);
1102 CHECK_SIZE_AND_OFFSET(tm, tm_hour);
1103 CHECK_SIZE_AND_OFFSET(tm, tm_mday);
1104 CHECK_SIZE_AND_OFFSET(tm, tm_mon);
1105 CHECK_SIZE_AND_OFFSET(tm, tm_year);
1106 CHECK_SIZE_AND_OFFSET(tm, tm_wday);
1107 CHECK_SIZE_AND_OFFSET(tm, tm_yday);
1108 CHECK_SIZE_AND_OFFSET(tm, tm_isdst);
1109 CHECK_SIZE_AND_OFFSET(tm, tm_gmtoff);
1110 CHECK_SIZE_AND_OFFSET(tm, tm_zone);
1111
1112 #if SANITIZER_LINUX
1113 CHECK_TYPE_SIZE(mntent);
1114 CHECK_SIZE_AND_OFFSET(mntent, mnt_fsname);
1115 CHECK_SIZE_AND_OFFSET(mntent, mnt_dir);
1116 CHECK_SIZE_AND_OFFSET(mntent, mnt_type);
1117 CHECK_SIZE_AND_OFFSET(mntent, mnt_opts);
1118 CHECK_SIZE_AND_OFFSET(mntent, mnt_freq);
1119 CHECK_SIZE_AND_OFFSET(mntent, mnt_passno);
1120 #endif
1121
1122 CHECK_TYPE_SIZE(ether_addr);
1123
1124 #if (SANITIZER_LINUX || SANITIZER_FREEBSD) && !SANITIZER_ANDROID
1125 CHECK_TYPE_SIZE(ipc_perm);
1126 # if SANITIZER_FREEBSD
1127 CHECK_SIZE_AND_OFFSET(ipc_perm, key);
1128 CHECK_SIZE_AND_OFFSET(ipc_perm, seq);
1129 # else
1130 CHECK_SIZE_AND_OFFSET(ipc_perm, __key);
1131 CHECK_SIZE_AND_OFFSET(ipc_perm, __seq);
1132 # endif
1133 CHECK_SIZE_AND_OFFSET(ipc_perm, uid);
1134 CHECK_SIZE_AND_OFFSET(ipc_perm, gid);
1135 CHECK_SIZE_AND_OFFSET(ipc_perm, cuid);
1136 CHECK_SIZE_AND_OFFSET(ipc_perm, cgid);
1137 #if !SANITIZER_LINUX || __GLIBC_PREREQ (2, 31)
1138 /* glibc 2.30 and earlier provided 16-bit mode field instead of 32-bit
1139    on many architectures.  */
1140 CHECK_SIZE_AND_OFFSET(ipc_perm, mode);
1141 #endif
1142
1143 CHECK_TYPE_SIZE(shmid_ds);
1144 CHECK_SIZE_AND_OFFSET(shmid_ds, shm_perm);
1145 CHECK_SIZE_AND_OFFSET(shmid_ds, shm_segsz);
1146 CHECK_SIZE_AND_OFFSET(shmid_ds, shm_atime);
1147 CHECK_SIZE_AND_OFFSET(shmid_ds, shm_dtime);
1148 CHECK_SIZE_AND_OFFSET(shmid_ds, shm_ctime);
1149 CHECK_SIZE_AND_OFFSET(shmid_ds, shm_cpid);
1150 CHECK_SIZE_AND_OFFSET(shmid_ds, shm_lpid);
1151 CHECK_SIZE_AND_OFFSET(shmid_ds, shm_nattch);
1152 #endif
1153
1154 CHECK_TYPE_SIZE(clock_t);
1155
1156 #if SANITIZER_LINUX
1157 CHECK_TYPE_SIZE(clockid_t);
1158 #endif
1159
1160 #if !SANITIZER_ANDROID
1161 CHECK_TYPE_SIZE(ifaddrs);
1162 CHECK_SIZE_AND_OFFSET(ifaddrs, ifa_next);
1163 CHECK_SIZE_AND_OFFSET(ifaddrs, ifa_name);
1164 CHECK_SIZE_AND_OFFSET(ifaddrs, ifa_addr);
1165 CHECK_SIZE_AND_OFFSET(ifaddrs, ifa_netmask);
1166 #if SANITIZER_LINUX || SANITIZER_FREEBSD
1167 // Compare against the union, because we can't reach into the union in a
1168 // compliant way.
1169 #ifdef ifa_dstaddr
1170 #undef ifa_dstaddr
1171 #endif
1172 # if SANITIZER_FREEBSD
1173 CHECK_SIZE_AND_OFFSET(ifaddrs, ifa_dstaddr);
1174 # else
1175 COMPILER_CHECK(sizeof(((__sanitizer_ifaddrs *)nullptr)->ifa_dstaddr) ==
1176                sizeof(((ifaddrs *)nullptr)->ifa_ifu));
1177 COMPILER_CHECK(offsetof(__sanitizer_ifaddrs, ifa_dstaddr) ==
1178                offsetof(ifaddrs, ifa_ifu));
1179 # endif // SANITIZER_FREEBSD
1180 #else
1181 CHECK_SIZE_AND_OFFSET(ifaddrs, ifa_dstaddr);
1182 #endif // SANITIZER_LINUX
1183 CHECK_SIZE_AND_OFFSET(ifaddrs, ifa_data);
1184 #endif
1185
1186 #if SANITIZER_LINUX
1187 COMPILER_CHECK(sizeof(__sanitizer_struct_mallinfo) == sizeof(struct mallinfo));
1188 #endif
1189
1190 #if !SANITIZER_ANDROID
1191 CHECK_TYPE_SIZE(timeb);
1192 CHECK_SIZE_AND_OFFSET(timeb, time);
1193 CHECK_SIZE_AND_OFFSET(timeb, millitm);
1194 CHECK_SIZE_AND_OFFSET(timeb, timezone);
1195 CHECK_SIZE_AND_OFFSET(timeb, dstflag);
1196 #endif
1197
1198 CHECK_TYPE_SIZE(passwd);
1199 CHECK_SIZE_AND_OFFSET(passwd, pw_name);
1200 CHECK_SIZE_AND_OFFSET(passwd, pw_passwd);
1201 CHECK_SIZE_AND_OFFSET(passwd, pw_uid);
1202 CHECK_SIZE_AND_OFFSET(passwd, pw_gid);
1203 CHECK_SIZE_AND_OFFSET(passwd, pw_dir);
1204 CHECK_SIZE_AND_OFFSET(passwd, pw_shell);
1205
1206 #if !SANITIZER_ANDROID
1207 CHECK_SIZE_AND_OFFSET(passwd, pw_gecos);
1208 #endif
1209
1210 #if SANITIZER_MAC
1211 CHECK_SIZE_AND_OFFSET(passwd, pw_change);
1212 CHECK_SIZE_AND_OFFSET(passwd, pw_expire);
1213 CHECK_SIZE_AND_OFFSET(passwd, pw_class);
1214 #endif
1215
1216
1217 CHECK_TYPE_SIZE(group);
1218 CHECK_SIZE_AND_OFFSET(group, gr_name);
1219 CHECK_SIZE_AND_OFFSET(group, gr_passwd);
1220 CHECK_SIZE_AND_OFFSET(group, gr_gid);
1221 CHECK_SIZE_AND_OFFSET(group, gr_mem);
1222
1223 #if HAVE_RPC_XDR_H
1224 CHECK_TYPE_SIZE(XDR);
1225 CHECK_SIZE_AND_OFFSET(XDR, x_op);
1226 CHECK_SIZE_AND_OFFSET(XDR, x_ops);
1227 CHECK_SIZE_AND_OFFSET(XDR, x_public);
1228 CHECK_SIZE_AND_OFFSET(XDR, x_private);
1229 CHECK_SIZE_AND_OFFSET(XDR, x_base);
1230 CHECK_SIZE_AND_OFFSET(XDR, x_handy);
1231 COMPILER_CHECK(__sanitizer_XDR_ENCODE == XDR_ENCODE);
1232 COMPILER_CHECK(__sanitizer_XDR_DECODE == XDR_DECODE);
1233 COMPILER_CHECK(__sanitizer_XDR_FREE == XDR_FREE);
1234 #endif
1235
1236 #if SANITIZER_LINUX && !SANITIZER_ANDROID
1237 COMPILER_CHECK(sizeof(__sanitizer_FILE) <= sizeof(FILE));
1238 CHECK_SIZE_AND_OFFSET(FILE, _flags);
1239 CHECK_SIZE_AND_OFFSET(FILE, _IO_read_ptr);
1240 CHECK_SIZE_AND_OFFSET(FILE, _IO_read_end);
1241 CHECK_SIZE_AND_OFFSET(FILE, _IO_read_base);
1242 CHECK_SIZE_AND_OFFSET(FILE, _IO_write_ptr);
1243 CHECK_SIZE_AND_OFFSET(FILE, _IO_write_end);
1244 CHECK_SIZE_AND_OFFSET(FILE, _IO_write_base);
1245 CHECK_SIZE_AND_OFFSET(FILE, _IO_buf_base);
1246 CHECK_SIZE_AND_OFFSET(FILE, _IO_buf_end);
1247 CHECK_SIZE_AND_OFFSET(FILE, _IO_save_base);
1248 CHECK_SIZE_AND_OFFSET(FILE, _IO_backup_base);
1249 CHECK_SIZE_AND_OFFSET(FILE, _IO_save_end);
1250 CHECK_SIZE_AND_OFFSET(FILE, _markers);
1251 CHECK_SIZE_AND_OFFSET(FILE, _chain);
1252 CHECK_SIZE_AND_OFFSET(FILE, _fileno);
1253 #endif
1254
1255 #if SANITIZER_LINUX && !SANITIZER_ANDROID
1256 COMPILER_CHECK(sizeof(__sanitizer__obstack_chunk) <= sizeof(_obstack_chunk));
1257 CHECK_SIZE_AND_OFFSET(_obstack_chunk, limit);
1258 CHECK_SIZE_AND_OFFSET(_obstack_chunk, prev);
1259 CHECK_TYPE_SIZE(obstack);
1260 CHECK_SIZE_AND_OFFSET(obstack, chunk_size);
1261 CHECK_SIZE_AND_OFFSET(obstack, chunk);
1262 CHECK_SIZE_AND_OFFSET(obstack, object_base);
1263 CHECK_SIZE_AND_OFFSET(obstack, next_free);
1264
1265 CHECK_TYPE_SIZE(cookie_io_functions_t);
1266 CHECK_SIZE_AND_OFFSET(cookie_io_functions_t, read);
1267 CHECK_SIZE_AND_OFFSET(cookie_io_functions_t, write);
1268 CHECK_SIZE_AND_OFFSET(cookie_io_functions_t, seek);
1269 CHECK_SIZE_AND_OFFSET(cookie_io_functions_t, close);
1270 #endif
1271
1272 #if SANITIZER_LINUX || SANITIZER_FREEBSD
1273 CHECK_TYPE_SIZE(sem_t);
1274 #endif
1275
1276 #if SANITIZER_LINUX && defined(__arm__)
1277 COMPILER_CHECK(ARM_VFPREGS_SIZE == ARM_VFPREGS_SIZE_ASAN);
1278 #endif
1279
1280 #endif // SANITIZER_LINUX || SANITIZER_FREEBSD || SANITIZER_MAC