libgo/mksysinfo.sh

   1 #!/bin/sh
   2
   3 # Copyright 2009 The Go Authors. All rights reserved.
   4 # Use of this source code is governed by a BSD-style
   5 # license that can be found in the LICENSE file.
   6
   7 # Create sysinfo.go from gen-sysinfo.go and errno.i.
   8
   9 # This shell script creates the sysinfo.go file which holds types and
  10 # constants extracted from the system header files.  This reads the
  11 # raw data from gen-sysinfo.go which is generated using the
  12 # -fdump-go-spec option.
  13
  14 # This currently exposes some names that ideally should not be
  15 # exposed, as they match grep patterns.  E.g., WCHAR_MIN gets exposed
  16 # because it starts with W, like the wait flags.
  17
  18 OUT=tmp-sysinfo.go
  19
  20 set -e
  21
  22 echo 'package syscall' > ${OUT}
  23 echo 'import "unsafe"' >> ${OUT}
  24 echo 'type _ unsafe.Pointer' >> ${OUT}
  25
  26 # Get all the consts and types, skipping ones which could not be
  27 # represented in Go and ones which we need to rewrite.  We also skip
  28 # function declarations, as we don't need them here.  All the symbols
  29 # will all have a leading underscore.
  30 grep -v '^// ' gen-sysinfo.go | \
  31   grep -v '^func' | \
  32   grep -v '^type _timeval ' | \
  33   grep -v '^type _timespec_t ' | \
  34   grep -v '^type _timespec ' | \
  35   grep -v '^type _timestruc_t ' | \
  36   grep -v '^type _epoll_' | \
  37   grep -v 'in6_addr' | \
  38   grep -v 'sockaddr_in6' | \
  39   sed -e 's/\([^a-zA-Z0-9_]\)_timeval\([^a-zA-Z0-9_]\)/\1Timeval\2/g' \
  40       -e 's/\([^a-zA-Z0-9_]\)_timespec_t\([^a-zA-Z0-9_]\)/\1Timespec\2/g' \
  41       -e 's/\([^a-zA-Z0-9_]\)_timespec\([^a-zA-Z0-9_]\)/\1Timespec\2/g' \
  42       -e 's/\([^a-zA-Z0-9_]\)_timestruc_t\([^a-zA-Z0-9_]\)/\1Timestruc\2/g' \
  43     >> ${OUT}
  44
  45 # On AIX, the _arpcom struct, is filtered by the above grep sequence, as it as
  46 # a field of type _in6_addr, but other types depend on _arpcom, so we need to
  47 # put it back.
  48 grep '^type _arpcom ' gen-sysinfo.go | \
  49   sed -e 's/_in6_addr/[16]byte/' >> ${OUT}
  50
  51 # The errno constants.  These get type Errno.
  52   egrep '#define E[A-Z0-9_]+ ' errno.i | \
  53   sed -e 's/^#define \(E[A-Z0-9_]*\) .*$/const \1 = Errno(_\1)/' >> ${OUT}
  54
  55 # The O_xxx flags.
  56 egrep '^const _(O|F|FD)_' gen-sysinfo.go | \
  57   sed -e 's/^\(const \)_\([^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
  58 if ! grep '^const O_ASYNC' ${OUT} >/dev/null 2>&1; then
  59   echo "const O_ASYNC = 0" >> ${OUT}
  60 fi
  61 if ! grep '^const O_CLOEXEC' ${OUT} >/dev/null 2>&1; then
  62   echo "const O_CLOEXEC = 0" >> ${OUT}
  63 fi
  64
  65 # The os package requires F_DUPFD_CLOEXEC to be defined.
  66 if ! grep '^const F_DUPFD_CLOEXEC' ${OUT} >/dev/null 2>&1; then
  67   echo "const F_DUPFD_CLOEXEC = 0" >> ${OUT}
  68 fi
  69
  70 # AIX 7.1 is a 64 bits value for _FCLOEXEC (referenced by O_CLOEXEC)
  71 # which leads to a constant overflow when using O_CLOEXEC in some
  72 # go code. Issue wan not present in 6.1 (no O_CLOEXEC) and is no
  73 # more present in 7.2 (_FCLOEXEC is a 32 bit value).
  74 if test "${GOOS}" = "aix" && `oslevel | grep -q "^7.1"`; then
  75     sed -e 's/const __FCLOEXEC = .*/const __FCLOEXEC = 0/' ${OUT} > ${OUT}-2
  76     mv ${OUT}-2 ${OUT}
  77 fi
  78
  79 # These flags can be lost on i386 GNU/Linux when using
  80 # -D_FILE_OFFSET_BITS=64, because we see "#define F_SETLK F_SETLK64"
  81 # before we see the definition of F_SETLK64.
  82 for flag in F_GETLK F_SETLK F_SETLKW; do
  83   if ! grep "^const ${flag} " ${OUT} >/dev/null 2>&1 \
  84       && grep "^const ${flag}64 " ${OUT} >/dev/null 2>&1; then
  85     echo "const ${flag} = ${flag}64" >> ${OUT}
  86   fi
  87 done
  88
  89 # The Flock_t struct for fcntl.
  90 grep '^type _flock ' gen-sysinfo.go | \
  91     sed -e 's/type _flock/type Flock_t/' \
  92       -e 's/l_type/Type/' \
  93       -e 's/l_whence/Whence/' \
  94       -e 's/l_start/Start/' \
  95       -e 's/l_len/Len/' \
  96       -e 's/l_pid/Pid/' \
  97     >> ${OUT}
  98
  99 # The signal numbers.
 100 grep '^const _SIG[^_]' gen-sysinfo.go | \
 101   grep -v '^const _SIGEV_' | \
 102   sed -e 's/^\(const \)_\(SIG[^= ]*\)\(.*\)$/\1\2 = Signal(_\2)/' >> ${OUT}
 103 if ! grep '^const SIGPOLL ' ${OUT} >/dev/null 2>&1; then
 104   if grep '^const SIGIO ' ${OUT} > /dev/null 2>&1; then
 105     echo "const SIGPOLL = SIGIO" >> ${OUT}
 106   fi
 107 fi
 108 if ! grep '^const SIGCLD ' ${OUT} >/dev/null 2>&1; then
 109   if grep '^const SIGCHLD ' ${OUT} >/dev/null 2>&1; then
 110     echo "const SIGCLD = SIGCHLD" >> ${OUT}
 111   fi
 112 fi
 113
 114 # The syscall numbers.  We force the names to upper case.
 115 grep '^const _SYS_' gen-sysinfo.go | \
 116   sed -e 's/const _\(SYS_[^= ]*\).*$/\1/' | \
 117   while read sys; do
 118     sup=`echo $sys | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ`
 119     echo "const $sup = _$sys" >> ${OUT}
 120   done
 121
 122 # The GNU/Linux support wants to use SYS_GETDENTS64 if available.
 123 if ! grep '^const SYS_GETDENTS ' ${OUT} >/dev/null 2>&1; then
 124   echo "const SYS_GETDENTS = 0" >> ${OUT}
 125 fi
 126 if ! grep '^const SYS_GETDENTS64 ' ${OUT} >/dev/null 2>&1; then
 127   echo "const SYS_GETDENTS64 = 0" >> ${OUT}
 128 fi
 129
 130 # Stat constants.
 131 grep '^const _S_' gen-sysinfo.go | \
 132   sed -e 's/^\(const \)_\(S_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 133
 134 # Mmap constants.
 135 grep '^const _PROT_' gen-sysinfo.go | \
 136   sed -e 's/^\(const \)_\(PROT_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 137 grep '^const _MAP_' gen-sysinfo.go | \
 138   sed -e 's/^\(const \)_\(MAP_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 139 grep '^const _MADV_' gen-sysinfo.go | \
 140   sed -e 's/^\(const \)_\(MADV_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 141 grep '^const _MCL_' gen-sysinfo.go | \
 142   sed -e 's/^\(const \)_\(MCL_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 143
 144 # Process status constants.
 145 grep '^const _W' gen-sysinfo.go |
 146   sed -e 's/^\(const \)_\(W[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 147 # WSTOPPED was introduced in glibc 2.3.4.
 148 if ! grep '^const _WSTOPPED = ' gen-sysinfo.go >/dev/null 2>&1; then
 149   if grep '^const _WUNTRACED = ' gen-sysinfo.go > /dev/null 2>&1; then
 150     echo 'const WSTOPPED = _WUNTRACED' >> ${OUT}
 151   else
 152     echo 'const WSTOPPED = 2' >> ${OUT}
 153   fi
 154 fi
 155 if grep '^const ___WALL = ' gen-sysinfo.go >/dev/null 2>&1 \
 156    && ! grep '^const _WALL = ' gen-sysinfo.go >/dev/null 2>&1; then
 157   echo 'const WALL = ___WALL' >> ${OUT}
 158 fi
 159
 160 # Networking constants.
 161 egrep '^const _(AF|ARPHRD|ETH|IN|SOCK|SOL|SO|IPPROTO|TCP|IP|IPV6)_' gen-sysinfo.go |
 162   sed -e 's/^\(const \)_\([^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 163 grep '^const _SOMAXCONN' gen-sysinfo.go |
 164   sed -e 's/^\(const \)_\(SOMAXCONN[^= ]*\)\(.*\)$/\1\2 = _\2/' \
 165     >> ${OUT}
 166 grep '^const _SHUT_' gen-sysinfo.go |
 167   sed -e 's/^\(const \)_\(SHUT[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 168
 169 # The net package requires some const definitions.
 170 for m in IP_PKTINFO IPV6_V6ONLY IPPROTO_IPV6 IPV6_JOIN_GROUP IPV6_LEAVE_GROUP IPV6_TCLASS SO_REUSEPORT; do
 171   if ! grep "^const $m " ${OUT} >/dev/null 2>&1; then
 172     echo "const $m = 0" >> ${OUT}
 173   fi
 174 done
 175 for m in SOCK_CLOEXEC SOCK_NONBLOCK; do
 176   if ! grep "^const $m " ${OUT} >/dev/null 2>&1; then
 177     echo "const $m = -1" >> ${OUT}
 178   fi
 179 done
 180
 181 # The syscall package requires AF_LOCAL.
 182 if ! grep '^const AF_LOCAL ' ${OUT} >/dev/null 2>&1; then
 183   if grep '^const AF_UNIX ' ${OUT} >/dev/null 2>&1; then
 184     echo "const AF_LOCAL = AF_UNIX" >> ${OUT}
 185   fi
 186 fi
 187
 188 # sysconf constants.
 189 grep '^const __SC' gen-sysinfo.go |
 190   sed -e 's/^\(const \)__\(SC[^= ]*\)\(.*\)$/\1\2 = __\2/' >> ${OUT}
 191
 192 # pathconf constants.
 193 grep '^const __PC' gen-sysinfo.go |
 194   sed -e 's/^\(const \)__\(PC[^= ]*\)\(.*\)$/\1\2 = __\2/' >> ${OUT}
 195
 196 # The PATH_MAX constant.
 197 if grep '^const _PATH_MAX ' gen-sysinfo.go >/dev/null 2>&1; then
 198   echo 'const PathMax = _PATH_MAX' >> ${OUT}
 199 fi
 200
 201 # epoll constants.
 202 grep '^const _EPOLL' gen-sysinfo.go |
 203   grep -v EPOLLET |
 204   sed -e 's/^\(const \)_\(EPOLL[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 205 # Make sure EPOLLET is positive.
 206 if grep '^const _EPOLLET = [0-9]' gen-sysinfo.go >/dev/null 2>&1; then
 207   grep '^const _EPOLLET ' gen-sysinfo.go |
 208     sed -e 's/^\(const \)_\(EPOLL[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 209 else
 210   echo "const EPOLLET = 0x80000000" >> ${OUT}
 211 fi
 212 # Make sure EPOLLRDHUP and EPOLL_CLOEXEC are defined.
 213 if ! grep '^const EPOLLRDHUP' ${OUT} >/dev/null 2>&1; then
 214   echo "const EPOLLRDHUP = 0x2000" >> ${OUT}
 215 fi
 216 if ! grep '^const EPOLL_CLOEXEC' ${OUT} >/dev/null 2>&1; then
 217   echo "const EPOLL_CLOEXEC = 02000000" >> ${OUT}
 218 fi
 219
 220 # Prctl constants.
 221 grep '^const _PR_' gen-sysinfo.go |
 222   sed -e 's/^\(const \)_\(PR_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 223
 224 # Ptrace constants.
 225 grep '^const _PTRACE' gen-sysinfo.go |
 226   sed -e 's/^\(const \)_\(PTRACE[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 227 # We need some ptrace options that are not defined in older versions
 228 # of glibc.
 229 if ! grep '^const PTRACE_SETOPTIONS' ${OUT} > /dev/null 2>&1; then
 230   echo "const PTRACE_SETOPTIONS = 0x4200" >> ${OUT}
 231 fi
 232 if ! grep '^const PTRACE_O_TRACESYSGOOD' ${OUT} > /dev/null 2>&1; then
 233   echo "const PTRACE_O_TRACESYSGOOD = 0x1" >> ${OUT}
 234 fi
 235 if ! grep '^const PTRACE_O_TRACEFORK' ${OUT} > /dev/null 2>&1; then
 236   echo "const PTRACE_O_TRACEFORK = 0x2" >> ${OUT}
 237 fi
 238 if ! grep '^const PTRACE_O_TRACEVFORK' ${OUT} > /dev/null 2>&1; then
 239   echo "const PTRACE_O_TRACEVFORK = 0x4" >> ${OUT}
 240 fi
 241 if ! grep '^const PTRACE_O_TRACECLONE' ${OUT} > /dev/null 2>&1; then
 242   echo "const PTRACE_O_TRACECLONE = 0x8" >> ${OUT}
 243 fi
 244 if ! grep '^const PTRACE_O_TRACEEXEC' ${OUT} > /dev/null 2>&1; then
 245   echo "const PTRACE_O_TRACEEXEC = 0x10" >> ${OUT}
 246 fi
 247 if ! grep '^const PTRACE_O_TRACEVFORKDONE' ${OUT} > /dev/null 2>&1; then
 248   echo "const PTRACE_O_TRACEVFORKDONE = 0x20" >> ${OUT}
 249 fi
 250 if ! grep '^const PTRACE_O_TRACEEXIT' ${OUT} > /dev/null 2>&1; then
 251   echo "const PTRACE_O_TRACEEXIT = 0x40" >> ${OUT}
 252 fi
 253 if ! grep '^const PTRACE_O_MASK' ${OUT} > /dev/null 2>&1; then
 254   echo "const PTRACE_O_MASK = 0x7f" >> ${OUT}
 255 fi
 256 if ! grep '^const _PTRACE_GETEVENTMSG' ${OUT} > /dev/null 2>&1; then
 257   echo "const PTRACE_GETEVENTMSG = 0x4201" >> ${OUT}
 258 fi
 259 if ! grep '^const PTRACE_EVENT_FORK' ${OUT} > /dev/null 2>&1; then
 260   echo "const PTRACE_EVENT_FORK = 1" >> ${OUT}
 261 fi
 262 if ! grep '^const PTRACE_EVENT_VFORK' ${OUT} > /dev/null 2>&1; then
 263   echo "const PTRACE_EVENT_VFORK = 2" >> ${OUT}
 264 fi
 265 if ! grep '^const PTRACE_EVENT_CLONE' ${OUT} > /dev/null 2>&1; then
 266   echo "const PTRACE_EVENT_CLONE = 3" >> ${OUT}
 267 fi
 268 if ! grep '^const PTRACE_EVENT_EXEC' ${OUT} > /dev/null 2>&1; then
 269   echo "const PTRACE_EVENT_EXEC = 4" >> ${OUT}
 270 fi
 271 if ! grep '^const PTRACE_EVENT_VFORK_DONE' ${OUT} > /dev/null 2>&1; then
 272   echo "const PTRACE_EVENT_VFORK_DONE = 5" >> ${OUT}
 273 fi
 274 if ! grep '^const PTRACE_EVENT_EXIT' ${OUT} > /dev/null 2>&1; then
 275   echo "const PTRACE_EVENT_EXIT = 6" >> ${OUT}
 276 fi
 277 if ! grep '^const _PTRACE_TRACEME' ${OUT} > /dev/null 2>&1; then
 278   echo "const _PTRACE_TRACEME = 0" >> ${OUT}
 279 fi
 280
 281 # A helper function that prints a structure from gen-sysinfo.go with the first
 282 # letter of the field names in upper case.  $1 is the name of structure.  If $2
 283 # is not empty, the structure or type is renamed to $2.
 284 upcase_fields () {
 285   name="$1"
 286   def=`grep "^type $name " gen-sysinfo.go`
 287   fields=`echo $def | sed -e 's/^[^{]*{\(.*\)}$/\1/'`
 288   prefix=`echo $def | sed -e 's/{.*//'`
 289   if test "$2" != ""; then
 290     prefix=`echo $prefix | sed -e "s/$1/$2/"`
 291   fi
 292   if test "$fields" != ""; then
 293     nfields=
 294     while test -n "$fields"; do
 295       field=`echo $fields | sed -e 's/^\([^;]*\);.*$/\1/'`
 296       fields=`echo $fields | sed -e 's/^[^;]*; *\(.*\)$/\1/'`
 297       # capitalize the next character.
 298       f=`echo $field | sed -e 's/^\(.\).*$/\1/'`
 299       r=`echo $field | sed -e 's/^.\(.*\)$/\1/'`
 300       f=`echo $f | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ`
 301       field="$f$r"
 302       nfields="$nfields $field;"
 303     done
 304     echo "${prefix} {$nfields }"
 305   fi
 306 }
 307
 308 # The registers returned by PTRACE_GETREGS.  This is probably
 309 # GNU/Linux specific; it should do no harm if there is no
 310 # _user_regs_struct.
 311 regs=`grep '^type _user_regs_struct struct' gen-sysinfo.go || true`
 312 if test "$regs" = ""; then
 313   # s390
 314   regs=`grep '^type __user_regs_struct struct' gen-sysinfo.go || true`
 315   if test "$regs" != ""; then
 316     # Substructures of __user_regs_struct on s390
 317     upcase_fields "__user_psw_struct" "PtracePsw" >> ${OUT} || true
 318     upcase_fields "__user_fpregs_struct" "PtraceFpregs" >> ${OUT} || true
 319     upcase_fields "__user_per_struct" "PtracePer" >> ${OUT} || true
 320   fi
 321 fi
 322 if test "$regs" != ""; then
 323   regs=`echo $regs |
 324     sed -e 's/type __*user_regs_struct struct //' -e 's/[{}]//g'`
 325   regs=`echo $regs | sed -e s'/^ *//'`
 326   nregs=
 327   while test -n "$regs"; do
 328     field=`echo $regs | sed -e 's/^\([^;]*\);.*$/\1/'`
 329     regs=`echo $regs | sed -e 's/^[^;]*; *\(.*\)$/\1/'`
 330     # Capitalize the first character of the field.
 331     f=`echo $field | sed -e 's/^\(.\).*$/\1/'`
 332     r=`echo $field | sed -e 's/^.\(.*\)$/\1/'`
 333     f=`echo $f | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ`
 334     field="$f$r"
 335     field=`echo "$field" | sed \
 336       -e 's/__user_psw_struct/PtracePsw/' \
 337       -e 's/__user_fpregs_struct/PtraceFpregs/' \
 338       -e 's/__user_per_struct/PtracePer/'`
 339     nregs="$nregs $field;"
 340   done
 341   echo "type PtraceRegs struct {$nregs }" >> ${OUT}
 342 fi
 343
 344 # Some basic types.
 345 echo 'type Size_t _size_t' >> ${OUT}
 346 echo "type Ssize_t _ssize_t" >> ${OUT}
 347 if grep '^const _HAVE_OFF64_T = ' gen-sysinfo.go > /dev/null 2>&1; then
 348   echo "type Offset_t _off64_t" >> ${OUT}
 349 else
 350   echo "type Offset_t _off_t" >> ${OUT}
 351 fi
 352 echo "type Mode_t _mode_t" >> ${OUT}
 353 echo "type Pid_t _pid_t" >> ${OUT}
 354 echo "type Uid_t _uid_t" >> ${OUT}
 355 echo "type Gid_t _gid_t" >> ${OUT}
 356 echo "type Socklen_t _socklen_t" >> ${OUT}
 357
 358 # The C int type.
 359 sizeof_int=`grep '^const ___SIZEOF_INT__ = ' gen-sysinfo.go | sed -e 's/.*= //'`
 360 if test "$sizeof_int" = "4"; then
 361   echo "type _C_int int32" >> ${OUT}
 362   echo "type _C_uint uint32" >> ${OUT}
 363 elif test "$sizeof_int" = "8"; then
 364   echo "type _C_int int64" >> ${OUT}
 365   echo "type _C_uint uint64" >> ${OUT}
 366 else
 367   echo 1>&2 "mksysinfo.sh: could not determine size of int (got $sizeof_int)"
 368   exit 1
 369 fi
 370
 371 # The C long type, needed because that is the type that ptrace returns.
 372 sizeof_long=`grep '^const ___SIZEOF_LONG__ = ' gen-sysinfo.go | sed -e 's/.*= //'`
 373 if test "$sizeof_long" = "4"; then
 374   echo "type _C_long int32" >> ${OUT}
 375   echo "type _C_ulong uint32" >> ${OUT}
 376 elif test "$sizeof_long" = "8"; then
 377   echo "type _C_long int64" >> ${OUT}
 378   echo "type _C_ulong uint64" >> ${OUT}
 379 else
 380   echo 1>&2 "mksysinfo.sh: could not determine size of long (got $sizeof_long)"
 381   exit 1
 382 fi
 383
 384 # Solaris 2 needs _u?pad128_t, but its default definition in terms of long
 385 # double is commented by -fdump-go-spec.
 386 if grep "^// type _pad128_t" gen-sysinfo.go > /dev/null 2>&1; then
 387   echo "type _pad128_t struct { _l [4]int32; }" >> ${OUT}
 388 fi
 389 if grep "^// type _upad128_t" gen-sysinfo.go > /dev/null 2>&1; then
 390   echo "type _upad128_t struct { _l [4]uint32; }" >> ${OUT}
 391 fi
 392
 393 # The time_t type.
 394 if grep '^type _time_t ' gen-sysinfo.go > /dev/null 2>&1; then
 395   echo 'type Time_t _time_t' >> ${OUT}
 396 fi
 397
 398 # The time structures need special handling: we need to name the
 399 # types, so that we can cast integers to the right types when
 400 # assigning to the structures.
 401 timeval=`grep '^type _timeval ' gen-sysinfo.go`
 402 timeval_sec=`echo $timeval | sed -n -e 's/^.*tv_sec \([^ ]*\);.*$/\1/p'`
 403 timeval_usec=`echo $timeval | sed -n -e 's/^.*tv_usec \([^ ]*\);.*$/\1/p'`
 404 echo "type Timeval_sec_t $timeval_sec" >> ${OUT}
 405 echo "type Timeval_usec_t $timeval_usec" >> ${OUT}
 406 echo $timeval | \
 407   sed -e 's/type _timeval /type Timeval /' \
 408       -e 's/tv_sec *[a-zA-Z0-9_]*/Sec Timeval_sec_t/' \
 409       -e 's/tv_usec *[a-zA-Z0-9_]*/Usec Timeval_usec_t/' >> ${OUT}
 410 timespec=`grep '^type _timespec ' gen-sysinfo.go || true`
 411 if test "$timespec" = ""; then
 412   # IRIX 6.5 has __timespec instead.
 413   timespec=`grep '^type ___timespec ' gen-sysinfo.go || true`
 414 fi
 415 timespec_sec=`echo $timespec | sed -n -e 's/^.*tv_sec \([^ ]*\);.*$/\1/p'`
 416 timespec_nsec=`echo $timespec | sed -n -e 's/^.*tv_nsec \([^ ]*\);.*$/\1/p'`
 417 echo "type Timespec_sec_t $timespec_sec" >> ${OUT}
 418 echo "type Timespec_nsec_t $timespec_nsec" >> ${OUT}
 419 echo $timespec | \
 420   sed -e 's/^type ___timespec /type Timespec /' \
 421       -e 's/^type _timespec /type Timespec /' \
 422       -e 's/tv_sec *[a-zA-Z0-9_]*/Sec Timespec_sec_t/' \
 423       -e 's/tv_nsec *[a-zA-Z0-9_]*/Nsec Timespec_nsec_t/' >> ${OUT}
 424
 425 timestruc=`grep '^type _timestruc_t ' gen-sysinfo.go || true`
 426 if test "$timestruc" != ""; then
 427   timestruc_sec=`echo $timestruc | sed -n -e 's/^.*tv_sec \([^ ]*\);.*$/\1/p'`
 428   timestruc_nsec=`echo $timestruc | sed -n -e 's/^.*tv_nsec \([^ ]*\);.*$/\1/p'`
 429   echo "type Timestruc_sec_t $timestruc_sec" >> ${OUT}
 430   echo "type Timestruc_nsec_t $timestruc_nsec" >> ${OUT}
 431   echo $timestruc | \
 432     sed -e 's/^type _timestruc_t /type Timestruc /' \
 433         -e 's/tv_sec *[a-zA-Z0-9_]*/Sec Timestruc_sec_t/' \
 434         -e 's/tv_nsec *[a-zA-Z0-9_]*/Nsec Timestruc_nsec_t/' >> ${OUT}
 435 fi
 436
 437 # The tms struct.
 438 grep '^type _tms ' gen-sysinfo.go | \
 439     sed -e 's/type _tms/type Tms/' \
 440       -e 's/tms_utime/Utime/' \
 441       -e 's/tms_stime/Stime/' \
 442       -e 's/tms_cutime/Cutime/' \
 443       -e 's/tms_cstime/Cstime/' \
 444     >> ${OUT}
 445
 446 # The stat type.
 447 # Prefer largefile variant if available.
 448 stat=`grep '^type _stat64 ' gen-sysinfo.go || true`
 449 if test "$stat" != ""; then
 450   grep '^type _stat64 ' gen-sysinfo.go
 451 else
 452   grep '^type _stat ' gen-sysinfo.go
 453 fi | sed -e 's/type _stat64/type Stat_t/' \
 454          -e 's/type _stat/type Stat_t/' \
 455          -e 's/st_dev/Dev/' \
 456          -e 's/st_ino/Ino/g' \
 457          -e 's/st_nlink/Nlink/' \
 458          -e 's/st_mode/Mode/' \
 459          -e 's/st_uid/Uid/' \
 460          -e 's/st_gid/Gid/' \
 461          -e 's/st_rdev/Rdev/' \
 462          -e 's/st_size/Size/' \
 463          -e 's/st_blksize/Blksize/' \
 464          -e 's/st_blocks/Blocks/' \
 465          -e 's/st_atim/Atim/' \
 466          -e 's/st_mtim/Mtim/' \
 467          -e 's/st_ctim/Ctim/' \
 468          -e 's/\([^a-zA-Z0-9_]\)_timeval\([^a-zA-Z0-9_]\)/\1Timeval\2/g' \
 469          -e 's/\([^a-zA-Z0-9_]\)_timespec_t\([^a-zA-Z0-9_]\)/\1Timespec\2/g' \
 470          -e 's/\([^a-zA-Z0-9_]\)_timespec\([^a-zA-Z0-9_]\)/\1Timespec\2/g' \
 471          -e 's/\([^a-zA-Z0-9_]\)_timestruc_t\([^a-zA-Z0-9_]\)/\1Timestruc\2/g' \
 472          -e 's/Godump_[0-9] struct { \([^;]*;\) };/\1/g' \
 473        >> ${OUT}
 474
 475 # The directory searching types.
 476 # Prefer largefile variant if available.
 477 dirent=`grep '^type _dirent64 ' gen-sysinfo.go || true`
 478 if test "$dirent" != ""; then
 479   grep '^type _dirent64 ' gen-sysinfo.go
 480 else
 481   grep '^type _dirent ' gen-sysinfo.go
 482 fi | sed -e 's/type _dirent64/type Dirent/' \
 483          -e 's/type _dirent/type Dirent/' \
 484          -e 's/d_name \[0+1\]/d_name [0+256]/' \
 485          -e 's/d_name/Name/' \
 486          -e 's/]int8/]byte/' \
 487          -e 's/d_ino/Ino/' \
 488          -e 's/d_off/Off/' \
 489          -e 's/d_reclen/Reclen/' \
 490          -e 's/d_type/Type/' \
 491       >> ${OUT}
 492 echo "type DIR _DIR" >> ${OUT}
 493
 494 # Values for d_type field in dirent.
 495 grep '^const _DT_' gen-sysinfo.go |
 496   sed -e 's/^\(const \)_\(DT_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 497
 498 # The rusage struct.
 499 rusage=`grep '^type _rusage struct' gen-sysinfo.go`
 500 if test "$rusage" != ""; then
 501   # Remove anonymous unions from GNU/Linux <bits/resource.h>.
 502   rusage=`echo $rusage | sed -e 's/Godump_[0-9][0-9]* struct {\([^}]*\)};/\1/g'`
 503   rusage=`echo $rusage | sed -e 's/type _rusage struct //' -e 's/[{}]//g'`
 504   rusage=`echo $rusage | sed -e 's/^ *//'`
 505   nrusage=
 506   while test -n "$rusage"; do
 507     field=`echo $rusage | sed -e 's/^\([^;]*\);.*$/\1/'`
 508     rusage=`echo $rusage | sed -e 's/^[^;]*; *\(.*\)$/\1/'`
 509     # Drop the leading ru_, capitalize the next character.
 510     field=`echo $field | sed -e 's/^ru_//'`
 511     f=`echo $field | sed -e 's/^\(.\).*$/\1/'`
 512     r=`echo $field | sed -e 's/^.\(.*\)$/\1/'`
 513     f=`echo $f | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ`
 514     # Fix _timeval _timespec, and _timestruc_t.
 515     r=`echo $r | sed -e s'/ _timeval$/ Timeval/'`
 516     r=`echo $r | sed -e s'/ _timespec$/ Timespec/'`
 517     r=`echo $r | sed -e s'/ _timestruc_t$/ Timestruc/'`
 518     field="$f$r"
 519     nrusage="$nrusage $field;"
 520   done
 521   echo "type Rusage struct {$nrusage }" >> ${OUT}
 522 else
 523   echo "type Rusage struct {}" >> ${OUT}
 524 fi
 525
 526 # The RUSAGE constants.
 527 grep '^const _RUSAGE_' gen-sysinfo.go | \
 528   sed -e 's/^\(const \)_\(RUSAGE_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 529
 530 # The utsname struct.
 531 grep '^type _utsname ' gen-sysinfo.go | \
 532     sed -e 's/_utsname/Utsname/' \
 533       -e 's/sysname/Sysname/' \
 534       -e 's/nodename/Nodename/' \
 535       -e 's/release/Release/' \
 536       -e 's/version/Version/' \
 537       -e 's/machine/Machine/' \
 538       -e 's/domainname/Domainname/' \
 539     >> ${OUT}
 540
 541 # The iovec struct.
 542 iovec=`grep '^type _iovec ' gen-sysinfo.go`
 543 iovec_len=`echo $iovec | sed -n -e 's/^.*iov_len \([^ ]*\);.*$/\1/p'`
 544 echo "type Iovec_len_t $iovec_len" >> ${OUT}
 545 echo $iovec | \
 546     sed -e 's/_iovec/Iovec/' \
 547       -e 's/iov_base/Base/' \
 548       -e 's/iov_len *[a-zA-Z0-9_]*/Len Iovec_len_t/' \
 549     >> ${OUT}
 550
 551 # The msghdr struct.
 552 msghdr=`grep '^type _msghdr ' gen-sysinfo.go`
 553 msghdr_controllen=`echo $msghdr | sed -n -e 's/^.*msg_controllen \([^ ]*\);.*$/\1/p'`
 554 echo "type Msghdr_controllen_t $msghdr_controllen" >> ${OUT}
 555 echo $msghdr | \
 556     sed -e 's/_msghdr/Msghdr/' \
 557       -e 's/msg_name/Name/' \
 558       -e 's/msg_namelen/Namelen/' \
 559       -e 's/msg_iov/Iov/' \
 560       -e 's/msg_iovlen/Iovlen/' \
 561       -e 's/_iovec/Iovec/' \
 562       -e 's/msg_control/Control/' \
 563       -e 's/msg_controllen *[a-zA-Z0-9_]*/Controllen Msghdr_controllen_t/' \
 564       -e 's/msg_flags/Flags/' \
 565     >> ${OUT}
 566
 567 # The MSG_ flags for Msghdr.
 568 grep '^const _MSG_' gen-sysinfo.go | \
 569   sed -e 's/^\(const \)_\(MSG_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 570
 571 # The cmsghdr struct.
 572 cmsghdr=`grep '^type _cmsghdr ' gen-sysinfo.go`
 573 if test -n "$cmsghdr"; then
 574   cmsghdr_len=`echo $cmsghdr | sed -n -e 's/^.*cmsg_len \([^ ]*\);.*$/\1/p'`
 575   echo "type Cmsghdr_len_t $cmsghdr_len" >> ${OUT}
 576   echo "$cmsghdr" | \
 577       sed -e 's/_cmsghdr/Cmsghdr/' \
 578         -e 's/cmsg_len *[a-zA-Z0-9_]*/Len Cmsghdr_len_t/' \
 579         -e 's/cmsg_level/Level/' \
 580         -e 's/cmsg_type/Type/' \
 581         -e 's/\[\]/[0]/' \
 582       >> ${OUT}
 583 fi
 584
 585 # The SCM_ flags for Cmsghdr.
 586 grep '^const _SCM_' gen-sysinfo.go | \
 587   sed -e 's/^\(const \)_\(SCM_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 588
 589 # The ucred struct.
 590 upcase_fields "_ucred" "Ucred" >> ${OUT} || true
 591
 592 # The ip_mreq struct.
 593 grep '^type _ip_mreq ' gen-sysinfo.go | \
 594     sed -e 's/_ip_mreq/IPMreq/' \
 595       -e 's/imr_multiaddr/Multiaddr/' \
 596       -e 's/imr_interface/Interface/' \
 597       -e 's/_in_addr/[4]byte/g' \
 598     >> ${OUT}
 599
 600 # We need IPMreq to compile the net package.
 601 if ! grep 'type IPMreq ' ${OUT} >/dev/null 2>&1; then
 602   echo 'type IPMreq struct { Multiaddr [4]byte; Interface [4]byte; }' >> ${OUT}
 603 fi
 604
 605 # The ipv6_mreq struct.
 606 grep '^type _ipv6_mreq ' gen-sysinfo.go | \
 607     sed -e 's/_ipv6_mreq/IPv6Mreq/' \
 608       -e 's/ipv6mr_multiaddr/Multiaddr/' \
 609       -e 's/ipv6mr_interface/Interface/' \
 610       -e 's/_in6_addr/[16]byte/' \
 611     >> ${OUT}
 612
 613 # We need IPv6Mreq to compile the net package.
 614 if ! grep 'type IPv6Mreq ' ${OUT} >/dev/null 2>&1; then
 615   echo 'type IPv6Mreq struct { Multiaddr [16]byte; Interface uint32; }' >> ${OUT}
 616 fi
 617
 618 # The ip_mreqn struct.
 619 grep '^type _ip_mreqn ' gen-sysinfo.go | \
 620     sed -e 's/_ip_mreqn/IPMreqn/' \
 621       -e 's/imr_multiaddr/Multiaddr/' \
 622       -e 's/imr_address/Address/' \
 623       -e 's/imr_ifindex/Ifindex/' \
 624       -e 's/_in_addr/[4]byte/g' \
 625     >> ${OUT}
 626
 627 # We need IPMreq to compile the net package.
 628 if ! grep 'type IPMreqn ' ${OUT} >/dev/null 2>&1; then
 629   echo 'type IPMreqn struct { Multiaddr [4]byte; Interface [4]byte; Ifindex int32 }' >> ${OUT}
 630 fi
 631
 632 # The icmp6_filter struct.
 633 grep '^type _icmp6_filter ' gen-sysinfo.go | \
 634     sed -e 's/_icmp6_filter/ICMPv6Filter/' \
 635       -e 's/data/Data/' \
 636       -e 's/filt/Filt/' \
 637     >> ${OUT}
 638
 639 # We need ICMPv6Filter to compile the syscall package.
 640 if ! grep 'type ICMPv6Filter ' ${OUT} > /dev/null 2>&1; then
 641   echo 'type ICMPv6Filter struct { Data [8]uint32 }' >> ${OUT}
 642 fi
 643
 644 # The ip6_mtuinfo struct.
 645 grep '^type _ip6_mtuinfo ' gen-sysinfo.go | \
 646     sed -e 's/_ip6_mtuinfo/IPv6MTUInfo/' \
 647       -e 's/ip6m_addr/Addr/' \
 648       -e 's/_sockaddr_in6/RawSockaddrInet6/' \
 649       -e 's/ip6m_mtu/Mtu/' \
 650     >> ${OUT}
 651
 652 # Try to guess the type to use for fd_set.
 653 fd_set=`grep '^type _fd_set ' gen-sysinfo.go || true`
 654 fds_bits_type="_C_long"
 655 if test "$fd_set" != ""; then
 656     fds_bits_type=`echo $fd_set | sed -e 's/.*[]]\([^;]*\); }$/\1/'`
 657 fi
 658 echo "type fds_bits_type $fds_bits_type" >> ${OUT}
 659
 660 # The addrinfo struct.
 661 grep '^type _addrinfo ' gen-sysinfo.go | \
 662     sed -e 's/_addrinfo/Addrinfo/g' \
 663       -e 's/ ai_/ Ai_/g' \
 664     >> ${OUT}
 665
 666 # The addrinfo and nameinfo flags and errors.
 667 grep '^const _AI_' gen-sysinfo.go | \
 668   sed -e 's/^\(const \)_\(AI_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 669 grep '^const _EAI_' gen-sysinfo.go | \
 670   sed -e 's/^\(const \)_\(EAI_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 671 grep '^const _NI_' gen-sysinfo.go | \
 672   sed -e 's/^\(const \)_\(NI_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 673
 674 # If nothing else defined EAI_OVERFLOW, make sure it has a value.
 675 if ! grep "const EAI_OVERFLOW " ${OUT} >/dev/null 2>&1; then
 676   echo "const EAI_OVERFLOW = 0" >> ${OUT}
 677 fi
 678
 679 # The passwd struct.
 680 grep '^type _passwd ' gen-sysinfo.go | \
 681     sed -e 's/_passwd/Passwd/' \
 682       -e 's/ pw_/ Pw_/g' \
 683     >> ${OUT}
 684
 685 # The group struct.
 686 grep '^type _group ' gen-sysinfo.go | \
 687     sed -e 's/_group/Group/' \
 688       -e 's/ gr_/ Gr_/g' \
 689     >> ${OUT}
 690
 691 # The ioctl flags for the controlling TTY.
 692 grep '^const _TIOC' gen-sysinfo.go | \
 693     grep -v '_val =' | \
 694     sed -e 's/^\(const \)_\(TIOC[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 695 grep '^const _TUNSET' gen-sysinfo.go | \
 696     grep -v '_val =' | \
 697     sed -e 's/^\(const \)_\(TUNSET[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 698 # We need TIOCGWINSZ.
 699 if ! grep '^const TIOCGWINSZ' ${OUT} >/dev/null 2>&1; then
 700   if grep '^const _TIOCGWINSZ_val' ${OUT} >/dev/null 2>&1; then
 701     echo 'const TIOCGWINSZ = _TIOCGWINSZ_val' >> ${OUT}
 702   fi
 703 fi
 704 if ! grep '^const TIOCSWINSZ' ${OUT} >/dev/null 2>&1; then
 705   if grep '^const _TIOCSWINSZ_val' ${OUT} >/dev/null 2>&1; then
 706     echo 'const TIOCSWINSZ = _TIOCSWINSZ_val' >> ${OUT}
 707   fi
 708 fi
 709 if ! grep '^const TIOCNOTTY' ${OUT} >/dev/null 2>&1; then
 710   if grep '^const _TIOCNOTTY_val' ${OUT} >/dev/null 2>&1; then
 711     echo 'const TIOCNOTTY = _TIOCNOTTY_val' >> ${OUT}
 712   fi
 713 fi
 714 if ! grep '^const TIOCSCTTY' ${OUT} >/dev/null 2>&1; then
 715   if grep '^const _TIOCSCTTY_val' ${OUT} >/dev/null 2>&1; then
 716     echo 'const TIOCSCTTY = _TIOCSCTTY_val' >> ${OUT}
 717   fi
 718 fi
 719 if ! grep '^const TIOCGPGRP' ${OUT} >/dev/null 2>&1; then
 720   if grep '^const _TIOCGPGRP_val' ${OUT} >/dev/null 2>&1; then
 721     echo 'const TIOCGPGRP = _TIOCGPGRP_val' >> ${OUT}
 722   fi
 723 fi
 724 if ! grep '^const TIOCSPGRP' ${OUT} >/dev/null 2>&1; then
 725   if grep '^const _TIOCSPGRP_val' ${OUT} >/dev/null 2>&1; then
 726     echo 'const TIOCSPGRP = _TIOCSPGRP_val' >> ${OUT}
 727   fi
 728 fi
 729 if ! grep '^const TIOCGPTN' ${OUT} >/dev/null 2>&1; then
 730   if grep '^const _TIOCGPTN_val' ${OUT} >/dev/null 2>&1; then
 731     echo 'const TIOCGPTN = _TIOCGPTN_val' >> ${OUT}
 732   fi
 733 fi
 734 if ! grep '^const TIOCSPTLCK' ${OUT} >/dev/null 2>&1; then
 735   if grep '^const _TIOCSPTLCK_val' ${OUT} >/dev/null 2>&1; then
 736     echo 'const TIOCSPTLCK = _TIOCSPTLCK_val' >> ${OUT}
 737   fi
 738 fi
 739 if ! grep '^const TIOCGDEV' ${OUT} >/dev/null 2>&1; then
 740   if grep '^const _TIOCGDEV_val' ${OUT} >/dev/null 2>&1; then
 741     echo 'const TIOCGDEV = _TIOCGDEV_val' >> ${OUT}
 742   fi
 743 fi
 744 if ! grep '^const TIOCSIG' ${OUT} >/dev/null 2>&1; then
 745   if grep '^const _TIOCSIG_val' ${OUT} >/dev/null 2>&1; then
 746     echo 'const TIOCSIG = _TIOCSIG_val' >> ${OUT}
 747   fi
 748 fi
 749
 750 if ! grep '^const TUNSETNOCSUM' ${OUT} >/dev/null 2>&1; then
 751   if grep '^const _TUNSETNOCSUM_val' ${OUT} >/dev/null 2>&1; then
 752     echo 'const TUNSETNOCSUM = _TUNSETNOCSUM_val' >> ${OUT}
 753   fi
 754 fi
 755
 756 if ! grep '^const TUNSETDEBUG' ${OUT} >/dev/null 2>&1; then
 757   if grep '^const _TUNSETDEBUG_val' ${OUT} >/dev/null 2>&1; then
 758     echo 'const TUNSETDEBUG = _TUNSETDEBUG_val' >> ${OUT}
 759   fi
 760 fi
 761
 762 if ! grep '^const TUNSETIFF' ${OUT} >/dev/null 2>&1; then
 763   if grep '^const _TUNSETIFF_val' ${OUT} >/dev/null 2>&1; then
 764     echo 'const TUNSETIFF = _TUNSETIFF_val' >> ${OUT}
 765   fi
 766 fi
 767
 768 if ! grep '^const TUNSETPERSIST' ${OUT} >/dev/null 2>&1; then
 769   if grep '^const _TUNSETPERSIST_val' ${OUT} >/dev/null 2>&1; then
 770     echo 'const TUNSETPERSIST = _TUNSETPERSIST_val' >> ${OUT}
 771   fi
 772 fi
 773
 774 if ! grep '^const TUNSETOWNER' ${OUT} >/dev/null 2>&1; then
 775   if grep '^const _TUNSETOWNER_val' ${OUT} >/dev/null 2>&1; then
 776     echo 'const TUNSETOWNER = _TUNSETOWNER_val' >> ${OUT}
 777   fi
 778 fi
 779
 780 if ! grep '^const TUNSETLINK' ${OUT} >/dev/null 2>&1; then
 781   if grep '^const _TUNSETLINK_val' ${OUT} >/dev/null 2>&1; then
 782     echo 'const TUNSETLINK = _TUNSETLINK_val' >> ${OUT}
 783   fi
 784 fi
 785
 786 if ! grep '^const TUNSETGROUP' ${OUT} >/dev/null 2>&1; then
 787   if grep '^const _TUNSETGROUP_val' ${OUT} >/dev/null 2>&1; then
 788     echo 'const TUNSETGROUP = _TUNSETGROUP_val' >> ${OUT}
 789   fi
 790 fi
 791
 792 if ! grep '^const TUNGETFEATURES' ${OUT} >/dev/null 2>&1; then
 793   if grep '^const _TUNGETFEATURES_val' ${OUT} >/dev/null 2>&1; then
 794     echo 'const TUNGETFEATURES = _TUNGETFEATURES_val' >> ${OUT}
 795   fi
 796 fi
 797
 798 if ! grep '^const TUNSETOFFLOAD' ${OUT} >/dev/null 2>&1; then
 799   if grep '^const _TUNSETOFFLOAD_val' ${OUT} >/dev/null 2>&1; then
 800     echo 'const TUNSETOFFLOAD = _TUNSETOFFLOAD_val' >> ${OUT}
 801   fi
 802 fi
 803
 804 if ! grep '^const TUNSETTXFILTER' ${OUT} >/dev/null 2>&1; then
 805   if grep '^const _TUNSETTXFILTER_val' ${OUT} >/dev/null 2>&1; then
 806     echo 'const TUNSETTXFILTER = _TUNSETTXFILTER_val' >> ${OUT}
 807   fi
 808 fi
 809
 810 if ! grep '^const TUNGETIFF' ${OUT} >/dev/null 2>&1; then
 811   if grep '^const _TUNGETIFF_val' ${OUT} >/dev/null 2>&1; then
 812     echo 'const TUNGETIFF = _TUNGETIFF_val' >> ${OUT}
 813   fi
 814 fi
 815
 816 if ! grep '^const TUNGETSNDBUF' ${OUT} >/dev/null 2>&1; then
 817   if grep '^const _TUNGETSNDBUF_val' ${OUT} >/dev/null 2>&1; then
 818     echo 'const TUNGETSNDBUF = _TUNGETSNDBUF_val' >> ${OUT}
 819   fi
 820 fi
 821
 822 if ! grep '^const TUNSETSNDBUF' ${OUT} >/dev/null 2>&1; then
 823   if grep '^const _TUNSETSNDBUF_val' ${OUT} >/dev/null 2>&1; then
 824     echo 'const TUNSETSNDBUF = _TUNSETSNDBUF_val' >> ${OUT}
 825   fi
 826 fi
 827
 828 if ! grep '^const TUNATTACHFILTER' ${OUT} >/dev/null 2>&1; then
 829   if grep '^const _TUNATTACHFILTER_val' ${OUT} >/dev/null 2>&1; then
 830     echo 'const TUNATTACHFILTER = _TUNATTACHFILTER_val' >> ${OUT}
 831   fi
 832 fi
 833
 834 if ! grep '^const TUNDETACHFILTER' ${OUT} >/dev/null 2>&1; then
 835   if grep '^const _TUNDETACHFILTER_val' ${OUT} >/dev/null 2>&1; then
 836     echo 'const TUNDETACHFILTER = _TUNDETACHFILTER_val' >> ${OUT}
 837   fi
 838 fi
 839
 840 if ! grep '^const TUNGETVNETHDRSZ' ${OUT} >/dev/null 2>&1; then
 841   if grep '^const _TUNGETVNETHDRSZ_val' ${OUT} >/dev/null 2>&1; then
 842     echo 'const TUNGETVNETHDRSZ = _TUNGETVNETHDRSZ_val' >> ${OUT}
 843   fi
 844 fi
 845
 846 if ! grep '^const TUNSETVNETHDRSZ' ${OUT} >/dev/null 2>&1; then
 847   if grep '^const _TUNSETVNETHDRSZ_val' ${OUT} >/dev/null 2>&1; then
 848     echo 'const TUNSETVNETHDRSZ = _TUNSETVNETHDRSZ_val' >> ${OUT}
 849   fi
 850 fi
 851
 852 if ! grep '^const TUNSETQUEUE' ${OUT} >/dev/null 2>&1; then
 853   if grep '^const _TUNSETQUEUE_val' ${OUT} >/dev/null 2>&1; then
 854     echo 'const TUNSETQUEUE = _TUNSETQUEUE_val' >> ${OUT}
 855   fi
 856 fi
 857
 858
 859 if ! grep '^const TUNSETIFINDEX' ${OUT} >/dev/null 2>&1; then
 860   if grep '^const _TUNSETIFINDEX_val' ${OUT} >/dev/null 2>&1; then
 861     echo 'const TUNSETIFINDEX = _TUNSETIFINDEX_val' >> ${OUT}
 862   fi
 863 fi
 864
 865 if ! grep '^const TUNGETFILTER' ${OUT} >/dev/null 2>&1; then
 866   if grep '^const _TUNGETFILTER_val' ${OUT} >/dev/null 2>&1; then
 867     echo 'const TUNGETFILTER = _TUNGETFILTER_val' >> ${OUT}
 868   fi
 869 fi
 870
 871 # The ioctl flags for terminal control
 872 grep '^const _TC[GS]ET' gen-sysinfo.go | grep -v _val | \
 873     sed -e 's/^\(const \)_\(TC[GS]ET[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 874 if ! grep '^const TCGETS' ${OUT} >/dev/null 2>&1; then
 875   if grep '^const _TCGETS_val' ${OUT} >/dev/null 2>&1; then
 876     echo 'const TCGETS = _TCGETS_val' >> ${OUT}
 877   fi
 878 fi
 879 if ! grep '^const TCSETS' ${OUT} >/dev/null 2>&1; then
 880   if grep '^const _TCSETS_val' ${OUT} >/dev/null 2>&1; then
 881     echo 'const TCSETS = _TCSETS_val' >> ${OUT}
 882   fi
 883 fi
 884
 885 # ioctl constants.  Might fall back to 0 if TIOCNXCL is missing, too, but
 886 # needs handling in syscalls.exec.go.
 887 if ! grep '^const _TIOCSCTTY ' gen-sysinfo.go >/dev/null 2>&1; then
 888   if grep '^const _TIOCNXCL ' gen-sysinfo.go >/dev/null 2>&1; then
 889     echo "const TIOCSCTTY = TIOCNXCL" >> ${OUT}
 890   fi
 891 fi
 892
 893 # If nothing else defined TIOCSCTTY, make sure it has a value.
 894 if ! grep "const TIOCSCTTY " ${OUT} >/dev/null 2>&1; then
 895   echo "const TIOCSCTTY = 0" >> ${OUT}
 896 fi
 897
 898 # The nlmsghdr struct.
 899 grep '^type _nlmsghdr ' gen-sysinfo.go | \
 900     sed -e 's/_nlmsghdr/NlMsghdr/' \
 901       -e 's/nlmsg_len/Len/' \
 902       -e 's/nlmsg_type/Type/' \
 903       -e 's/nlmsg_flags/Flags/' \
 904       -e 's/nlmsg_seq/Seq/' \
 905       -e 's/nlmsg_pid/Pid/' \
 906     >> ${OUT}
 907
 908 # The nlmsg flags and operators.
 909 grep '^const _NLM' gen-sysinfo.go | \
 910     sed -e 's/^\(const \)_\(NLM[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 911
 912 # NLMSG_HDRLEN is defined as an expression using sizeof.
 913 if ! grep '^const NLMSG_HDRLEN' ${OUT} > /dev/null 2>&1; then
 914   if grep '^const _sizeof_nlmsghdr ' ${OUT} > /dev/null 2>&1; then
 915     echo 'const NLMSG_HDRLEN = (_sizeof_nlmsghdr + (NLMSG_ALIGNTO-1)) &^ (NLMSG_ALIGNTO-1)' >> ${OUT}
 916   fi
 917 fi
 918
 919 # The rtmsg struct.
 920 grep '^type _rtmsg ' gen-sysinfo.go | \
 921     sed -e 's/_rtmsg/RtMsg/' \
 922       -e 's/rtm_family/Family/' \
 923       -e 's/rtm_dst_len/Dst_len/' \
 924       -e 's/rtm_src_len/Src_len/' \
 925       -e 's/rtm_tos/Tos/' \
 926       -e 's/rtm_table/Table/' \
 927       -e 's/rtm_protocol/Protocol/' \
 928       -e 's/rtm_scope/Scope/' \
 929       -e 's/rtm_type/Type/' \
 930       -e 's/rtm_flags/Flags/' \
 931     >> ${OUT}
 932
 933 # The rtgenmsg struct.
 934 grep '^type _rtgenmsg ' gen-sysinfo.go | \
 935     sed -e 's/_rtgenmsg/RtGenmsg/' \
 936       -e 's/rtgen_family/Family/' \
 937     >> ${OUT}
 938
 939 # The routing message flags.
 940 grep '^const _RT_' gen-sysinfo.go | \
 941     sed -e 's/^\(const \)_\(RT_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 942 grep '^const _RTA' gen-sysinfo.go | \
 943     sed -e 's/^\(const \)_\(RTA[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 944 grep '^const _RTF' gen-sysinfo.go | \
 945     sed -e 's/^\(const \)_\(RTF[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 946 grep '^const _RTCF' gen-sysinfo.go | \
 947     sed -e 's/^\(const \)_\(RTCF[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 948 grep '^const _RTM' gen-sysinfo.go | \
 949     sed -e 's/^\(const \)_\(RTM[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 950 grep '^const _RTN' gen-sysinfo.go | \
 951     sed -e 's/^\(const \)_\(RTN[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 952 grep '^const _RTPROT' gen-sysinfo.go | \
 953     sed -e 's/^\(const \)_\(RTPROT[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 954
 955 # The ifinfomsg struct.
 956 grep '^type _ifinfomsg ' gen-sysinfo.go | \
 957     sed -e 's/_ifinfomsg/IfInfomsg/' \
 958       -e 's/ifi_family/Family/' \
 959       -e 's/ifi_type/Type/' \
 960       -e 's/ifi_index/Index/' \
 961       -e 's/ifi_flags/Flags/' \
 962       -e 's/ifi_change/Change/' \
 963     >> ${OUT}
 964
 965 # The interface information types and flags.
 966 grep '^const _IFA' gen-sysinfo.go | \
 967     sed -e 's/^\(const \)_\(IFA[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 968 grep '^const _IFLA' gen-sysinfo.go | \
 969     sed -e 's/^\(const \)_\(IFLA[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 970 grep '^const _IFF' gen-sysinfo.go | \
 971     sed -e 's/^\(const \)_\(IFF[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 972 grep '^const _IFNAMSIZ' gen-sysinfo.go | \
 973     sed -e 's/^\(const \)_\(IFNAMSIZ[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 974 grep '^const _SIOC' gen-sysinfo.go |
 975     sed -e 's/^\(const \)_\(SIOC[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 976
 977 # The ifaddrmsg struct.
 978 grep '^type _ifaddrmsg ' gen-sysinfo.go | \
 979     sed -e 's/_ifaddrmsg/IfAddrmsg/' \
 980       -e 's/ifa_family/Family/' \
 981       -e 's/ifa_prefixlen/Prefixlen/' \
 982       -e 's/ifa_flags/Flags/' \
 983       -e 's/ifa_scope/Scope/' \
 984       -e 's/ifa_index/Index/' \
 985     >> ${OUT}
 986
 987 # The rtattr struct.
 988 grep '^type _rtattr ' gen-sysinfo.go | \
 989     sed -e 's/_rtattr/RtAttr/' \
 990       -e 's/rta_len/Len/' \
 991       -e 's/rta_type/Type/' \
 992     >> ${OUT}
 993
 994 # The in_pktinfo struct.
 995 grep '^type _in_pktinfo ' gen-sysinfo.go | \
 996     sed -e 's/_in_pktinfo/Inet4Pktinfo/' \
 997       -e 's/ipi_ifindex/Ifindex/' \
 998       -e 's/ipi_spec_dst/Spec_dst/' \
 999       -e 's/ipi_addr/Addr/' \
1000       -e 's/_in_addr/[4]byte/g' \
1001     >> ${OUT}
1002
1003 # The in6_pktinfo struct.
1004 grep '^type _in6_pktinfo ' gen-sysinfo.go | \
1005     sed -e 's/_in6_pktinfo/Inet6Pktinfo/' \
1006       -e 's/ipi6_addr/Addr/' \
1007       -e 's/ipi6_ifindex/Ifindex/' \
1008       -e 's/_in6_addr/[16]byte/' \
1009     >> ${OUT}
1010
1011 # The termios struct.
1012 grep '^type _termios ' gen-sysinfo.go | \
1013     sed -e 's/_termios/Termios/' \
1014       -e 's/c_iflag/Iflag/' \
1015       -e 's/c_oflag/Oflag/' \
1016       -e 's/c_cflag/Cflag/' \
1017       -e 's/c_lflag/Lflag/' \
1018       -e 's/c_line/Line/' \
1019       -e 's/c_cc/Cc/' \
1020       -e 's/c_ispeed/Ispeed/' \
1021       -e 's/c_ospeed/Ospeed/' \
1022     >> ${OUT}
1023
1024 # The termios constants.
1025 for n in IGNBRK BRKINT IGNPAR PARMRK INPCK ISTRIP INLCR IGNCR ICRNL IUCLC \
1026     IXON IXANY IXOFF IMAXBEL IUTF8 OPOST OLCUC ONLCR OCRNL ONOCR ONLRET \
1027     OFILL OFDEL NLDLY NL0 NL1 CRDLY CR0 CR1 CR2 CR3 CS5 CS6 CS7 CS8 TABDLY \
1028     BSDLY VTDLY FFDLY CBAUD CBAUDEX CSIZE CSTOPB CREAD PARENB PARODD HUPCL \
1029     CLOCAL LOBLK CIBAUD CMSPAR CRTSCTS ISIG ICANON XCASE ECHO ECHOE ECHOK \
1030     ECHONL ECHOCTL ECHOPRT ECHOKE DEFECHO FLUSHO NOFLSH TOSTOP PENDIN IEXTEN \
1031     VINTR VQUIT VERASE VKILL VEOF VMIN VEOL VTIME VEOL2 VSWTCH VSTART VSTOP \
1032     VSUSP VDSUSP VLNEXT VWERASE VREPRINT VDISCARD VSTATUS TCSANOW TCSADRAIN \
1033     TCSAFLUSH TCIFLUSH TCOFLUSH TCIOFLUSH TCOOFF TCOON TCIOFF TCION B0 B50 \
1034     B75 B110 B134 B150 B200 B300 B600 B1200 B1800 B2400 B4800 B9600 B19200 \
1035     B38400 B57600 B115200 B230400 B460800 B500000 B576000 B921600 B1000000 \
1036     B1152000 B1500000 B2000000 B2500000 B3000000 B3500000 B4000000; do
1037
1038     grep "^const _$n " gen-sysinfo.go | \
1039         sed -e 's/^\(const \)_\([^=]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1040 done
1041
1042 # The mount flags
1043 grep '^const _MNT_' gen-sysinfo.go |
1044     sed -e 's/^\(const \)_\(MNT_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1045 grep '^const _MS_' gen-sysinfo.go |
1046     sed -e 's/^\(const \)_\(MS_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1047
1048 # The fallocate flags.
1049 grep '^const _FALLOC_' gen-sysinfo.go |
1050     sed -e 's/^\(const \)_\(FALLOC_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1051
1052 # The statfs struct.
1053 # Prefer largefile variant if available.
1054 statfs=`grep '^type _statfs64 ' gen-sysinfo.go || true`
1055 if test "$statfs" != ""; then
1056   grep '^type _statfs64 ' gen-sysinfo.go
1057 else
1058   grep '^type _statfs ' gen-sysinfo.go
1059 fi | sed -e 's/type _statfs64/type Statfs_t/' \
1060          -e 's/type _statfs/type Statfs_t/' \
1061          -e 's/f_type/Type/' \
1062          -e 's/f_bsize/Bsize/' \
1063          -e 's/f_blocks/Blocks/' \
1064          -e 's/f_bfree/Bfree/' \
1065          -e 's/f_bavail/Bavail/' \
1066          -e 's/f_files/Files/' \
1067          -e 's/f_ffree/Ffree/' \
1068          -e 's/f_fsid/Fsid/' \
1069          -e 's/f_namelen/Namelen/' \
1070          -e 's/f_frsize/Frsize/' \
1071          -e 's/f_flags/Flags/' \
1072          -e 's/f_spare/Spare/' \
1073     >> ${OUT}
1074
1075 # The timex struct.
1076 timex=`grep '^type _timex ' gen-sysinfo.go || true`
1077 if test "$timex" = ""; then
1078   timex=`grep '^// type _timex ' gen-sysinfo.go || true`
1079   if test "$timex" != ""; then
1080     timex=`echo $timex | sed -e 's|// ||' -e 's/INVALID-bit-field/int32/g'`
1081   fi
1082 fi
1083 if test "$timex" != ""; then
1084   echo "$timex" | \
1085     sed -e 's/_timex/Timex/' \
1086       -e 's/modes/Modes/' \
1087       -e 's/offset/Offset/' \
1088       -e 's/freq/Freq/' \
1089       -e 's/maxerror/Maxerror/' \
1090       -e 's/esterror/Esterror/' \
1091       -e 's/status/Status/' \
1092       -e 's/constant/Constant/' \
1093       -e 's/precision/Precision/' \
1094       -e 's/tolerance/Tolerance/' \
1095       -e 's/ time / Time /' \
1096       -e 's/tick/Tick/' \
1097       -e 's/ppsfreq/Ppsfreq/' \
1098       -e 's/jitter/Jitter/' \
1099       -e 's/shift/Shift/' \
1100       -e 's/stabil/Stabil/' \
1101       -e 's/jitcnt/Jitcnt/' \
1102       -e 's/calcnt/Calcnt/' \
1103       -e 's/errcnt/Errcnt/' \
1104       -e 's/stbcnt/Stbcnt/' \
1105       -e 's/tai/Tai/' \
1106       -e 's/_timeval/Timeval/' \
1107     >> ${OUT}
1108 fi
1109
1110 # The rlimit struct.
1111 grep '^type _rlimit ' gen-sysinfo.go | \
1112     sed -e 's/_rlimit/Rlimit/' \
1113       -e 's/rlim_cur/Cur/' \
1114       -e 's/rlim_max/Max/' \
1115     >> ${OUT}
1116
1117 # The RLIMIT constants.
1118 grep '^const _RLIMIT_' gen-sysinfo.go |
1119     sed -e 's/^\(const \)_\(RLIMIT_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1120 grep '^const _RLIM_' gen-sysinfo.go |
1121     sed -e 's/^\(const \)_\(RLIM_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1122
1123 # The sysinfo struct.
1124 grep '^type _sysinfo ' gen-sysinfo.go | \
1125     sed -e 's/_sysinfo/Sysinfo_t/' \
1126       -e 's/uptime/Uptime/' \
1127       -e 's/loads/Loads/' \
1128       -e 's/totalram/Totalram/' \
1129       -e 's/freeram/Freeram/' \
1130       -e 's/sharedram/Sharedram/' \
1131       -e 's/bufferram/Bufferram/' \
1132       -e 's/totalswap/Totalswap/' \
1133       -e 's/freeswap/Freeswap/' \
1134       -e 's/procs/Procs/' \
1135       -e 's/totalhigh/Totalhigh/' \
1136       -e 's/freehigh/Freehigh/' \
1137       -e 's/mem_unit/Unit/' \
1138     >> ${OUT}
1139
1140 # The ustat struct.
1141 grep '^type _ustat ' gen-sysinfo.go | \
1142     sed -e 's/_ustat/Ustat_t/' \
1143       -e 's/f_tfree/Tfree/' \
1144       -e 's/f_tinode/Tinoe/' \
1145       -e 's/f_fname/Fname/' \
1146       -e 's/f_fpack/Fpack/' \
1147     >> ${OUT}
1148 # Force it to be defined, as on some older GNU/Linux systems the
1149 # header file fails when using with <linux/filter.h>.
1150 if ! grep 'type _ustat ' gen-sysinfo.go >/dev/null 2>&1; then
1151   echo 'type Ustat_t struct { Tfree int32; Tinoe uint64; Fname [5+1]int8; Fpack [5+1]int8; }' >> ${OUT}
1152 fi
1153
1154 # The utimbuf struct.
1155 grep '^type _utimbuf ' gen-sysinfo.go | \
1156     sed -e 's/_utimbuf/Utimbuf/' \
1157       -e 's/actime/Actime/' \
1158       -e 's/modtime/Modtime/' \
1159     >> ${OUT}
1160
1161 # The LOCK flags for flock.
1162 grep '^const _LOCK_' gen-sysinfo.go |
1163     sed -e 's/^\(const \)_\(LOCK_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1164
1165 # The PRIO constants.
1166 grep '^const _PRIO_' gen-sysinfo.go | \
1167   sed -e 's/^\(const \)_\(PRIO_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1168
1169 # The GNU/Linux LINUX_REBOOT flags.
1170 grep '^const _LINUX_REBOOT_' gen-sysinfo.go |
1171     sed -e 's/^\(const \)_\(LINUX_REBOOT_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1172
1173 # The GNU/Linux sock_filter struct.
1174 grep '^type _sock_filter ' gen-sysinfo.go | \
1175     sed -e 's/_sock_filter/SockFilter/' \
1176       -e 's/code/Code/' \
1177       -e 's/jt/Jt/' \
1178       -e 's/jf/Jf/' \
1179       -e 's/k /K /' \
1180     >> ${OUT}
1181
1182 # The GNU/Linux sock_fprog struct.
1183 grep '^type _sock_fprog ' gen-sysinfo.go | \
1184     sed -e 's/_sock_fprog/SockFprog/' \
1185       -e 's/len/Len/' \
1186       -e 's/filter/Filter/' \
1187       -e 's/_sock_filter/SockFilter/' \
1188     >> ${OUT}
1189
1190 # The GNU/Linux filter flags.
1191 grep '^const _BPF_' gen-sysinfo.go | \
1192   sed -e 's/^\(const \)_\(BPF_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1193
1194 # The GNU/Linux nlattr struct.
1195 grep '^type _nlattr ' gen-sysinfo.go | \
1196     sed -e 's/_nlattr/NlAttr/' \
1197       -e 's/nla_len/Len/' \
1198       -e 's/nla_type/Type/' \
1199     >> ${OUT}
1200
1201 # The GNU/Linux nlmsgerr struct.
1202 grep '^type _nlmsgerr ' gen-sysinfo.go | \
1203     sed -e 's/_nlmsgerr/NlMsgerr/' \
1204       -e 's/error/Error/' \
1205       -e 's/msg/Msg/' \
1206       -e 's/_nlmsghdr/NlMsghdr/' \
1207     >> ${OUT}
1208
1209 # The GNU/Linux rtnexthop struct.
1210 grep '^type _rtnexthop ' gen-sysinfo.go | \
1211     sed -e 's/_rtnexthop/RtNexthop/' \
1212       -e 's/rtnh_len/Len/' \
1213       -e 's/rtnh_flags/Flags/' \
1214       -e 's/rtnh_hops/Hops/' \
1215       -e 's/rtnh_ifindex/Ifindex/' \
1216     >> ${OUT}
1217
1218 # The GNU/Linux netlink flags.
1219 grep '^const _NETLINK_' gen-sysinfo.go | \
1220   sed -e 's/^\(const \)_\(NETLINK_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1221 grep '^const _NLA_' gen-sysinfo.go | grep -v '_val =' | \
1222   sed -e 's/^\(const \)_\(NLA_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1223
1224 if ! grep '^const NLA_HDRLEN' ${OUT} >/dev/null 2>&1; then
1225   if grep '^const _NLA_HDRLEN_val' ${OUT} >/dev/null 2>&1; then
1226     echo 'const NLA_HDRLEN = _NLA_HDRLEN_val' >> ${OUT}
1227   fi
1228 fi
1229
1230 # The GNU/Linux packet socket flags.
1231 grep '^const _PACKET_' gen-sysinfo.go | \
1232   sed -e 's/^\(const \)_\(PACKET_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1233
1234 # The GNU/Linux inotify_event struct.
1235 grep '^type _inotify_event ' gen-sysinfo.go | \
1236     sed -e 's/_inotify_event/InotifyEvent/' \
1237       -e 's/wd/Wd/' \
1238       -e 's/mask/Mask/' \
1239       -e 's/cookie/Cookie/' \
1240       -e 's/len/Len/' \
1241       -e 's/name/Name/' \
1242       -e 's/\[\]/[0]/' \
1243       -e 's/\[0\]byte/[0]int8/' \
1244     >> ${OUT}
1245
1246 # The GNU/Linux CLONE flags.
1247 grep '^const _CLONE_' gen-sysinfo.go | \
1248   sed -e 's/^\(const \)_\(CLONE_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1249 # We need some CLONE constants that are not defined in older versions
1250 # of glibc.
1251 if ! grep '^const CLONE_NEWUSER ' ${OUT} > /dev/null 2>&1; then
1252   echo "const CLONE_NEWUSER = 0x10000000" >> ${OUT}
1253 fi
1254 if ! grep '^const CLONE_NEWNET ' ${OUT} > /dev/null 2>&1; then
1255   echo "const CLONE_NEWNET = 0x40000000" >> ${OUT}
1256 fi
1257
1258 # Struct sizes.
1259 set cmsghdr Cmsghdr ip_mreq IPMreq ip_mreqn IPMreqn ipv6_mreq IPv6Mreq \
1260     ifaddrmsg IfAddrmsg ifinfomsg IfInfomsg in_pktinfo Inet4Pktinfo \
1261     in6_pktinfo Inet6Pktinfo inotify_event InotifyEvent linger Linger \
1262     msghdr Msghdr nlattr NlAttr nlmsgerr NlMsgerr nlmsghdr NlMsghdr \
1263     rtattr RtAttr rtgenmsg RtGenmsg rtmsg RtMsg rtnexthop RtNexthop \
1264     sock_filter SockFilter sock_fprog SockFprog ucred Ucred \
1265     icmp6_filter ICMPv6Filter ip6_mtuinfo IPv6MTUInfo
1266 while test $# != 0; do
1267     nc=$1
1268     ngo=$2
1269     shift
1270     shift
1271     if grep "^const _sizeof_$nc =" gen-sysinfo.go >/dev/null 2>&1; then
1272         echo "const Sizeof$ngo = _sizeof_$nc" >> ${OUT}
1273     fi
1274 done
1275
1276 # In order to compile the net package, we need some sizes to exist
1277 # even if the types do not.
1278 if ! grep 'const SizeofIPMreq ' ${OUT} >/dev/null 2>&1; then
1279     echo 'const SizeofIPMreq = 8' >> ${OUT}
1280 fi
1281 if ! grep 'const SizeofIPv6Mreq ' ${OUT} >/dev/null 2>&1; then
1282     echo 'const SizeofIPv6Mreq = 20' >> ${OUT}
1283 fi
1284 if ! grep 'const SizeofIPMreqn ' ${OUT} >/dev/null 2>&1; then
1285     echo 'const SizeofIPMreqn = 12' >> ${OUT}
1286 fi
1287 if ! grep 'const SizeofICMPv6Filter ' ${OUT} >/dev/null 2>&1; then
1288     echo 'const SizeofICMPv6Filter = 32' >> ${OUT}
1289 fi
1290
1291 # The Solaris 11 Update 1 _zone_net_addr_t struct.
1292 grep '^type _zone_net_addr_t ' gen-sysinfo.go | \
1293     sed -e 's/_in6_addr/[16]byte/' \
1294     >> ${OUT}
1295
1296 # The Solaris 12 _flow_arp_desc_t struct.
1297 grep '^type _flow_arp_desc_t ' gen-sysinfo.go | \
1298     sed -e 's/_in6_addr_t/[16]byte/g' \
1299     >> ${OUT}
1300
1301 # The Solaris 12 _flow_l3_desc_t struct.
1302 grep '^type _flow_l3_desc_t ' gen-sysinfo.go | \
1303     sed -e 's/_in6_addr_t/[16]byte/g' \
1304     >> ${OUT}
1305
1306 # The Solaris 12 _mac_ipaddr_t struct.
1307 grep '^type _mac_ipaddr_t ' gen-sysinfo.go | \
1308     sed -e 's/_in6_addr_t/[16]byte/g' \
1309     >> ${OUT}
1310
1311 # The Solaris 12 _mactun_info_t struct.
1312 grep '^type _mactun_info_t ' gen-sysinfo.go | \
1313     sed -e 's/_in6_addr_t/[16]byte/g' \
1314     >> ${OUT}
1315
1316 exit $?