lib/libsysdecode/mkioctls

   1 #!/bin/sh
   2 #
   3 # $FreeBSD$
   4
   5 set -e
   6
   7 if [ $# -ne 1 ]; then
   8         echo "usage: sh $0 include-dir"
   9         exit 1
  10 fi
  11
  12 includedir="$1"
  13
  14 LC_ALL=C; export LC_ALL
  15
  16 # Build a list of headers that have ioctls in them.
  17 # XXX should we use an ANSI cpp?
  18 ioctl_includes=$(
  19         cd $includedir
  20         set -e
  21         # if /bin/sh is bash this will avoid further errors due to missing commands
  22         if set -o | grep -q pipefail; then
  23                 set -o pipefail
  24         fi
  25
  26         filter='tee'
  27         if [ "${MK_PF}" = "no" ]; then
  28                 filter='egrep -v (net/pfvar|net/if_pfsync)\.h'
  29         fi
  30         # find -s would avoid the need to invoke sort but it is non-portable
  31         find -L ./* -type f -name '*.h' | \
  32                 LC_ALL=C sort | \
  33                 $filter | \
  34                 xargs egrep -l \
  35 '^#[    ]*define[       ]+[A-Za-z_][A-Za-z0-9_]*[       ]+_IO[^a-z0-9_]' |
  36                 awk '{printf("#include <%s>\\n", $1)}'
  37 )
  38
  39 if [ -z "$ioctl_includes" ]; then
  40         echo "Failed to build list of ioctl headers"
  41         exit 1
  42 fi
  43
  44 awk -v x="$ioctl_includes" 'BEGIN {print x}' |
  45         $CPP -nostdinc -I$includedir -dM -DCOMPAT_43TTY - |
  46         awk -v ioctl_includes="$ioctl_includes" '
  47 BEGIN {
  48         print "/* XXX obnoxious prerequisites. */"
  49         print "#define COMPAT_43"
  50         print "#define COMPAT_43TTY"
  51         print "#include <sys/param.h>"
  52         print "#include <sys/devicestat.h>"
  53         print "#include <sys/disklabel.h>"
  54         print "#include <sys/socket.h>"
  55         print "#include <sys/time.h>"
  56         print "#include <sys/tty.h>"
  57         print "#include <bsm/audit.h>"
  58         print "#include <net/ethernet.h>"
  59         print "#include <net/if.h>"
  60         print "#ifdef PF"
  61         print "#include <net/pfvar.h>"
  62         print "#include <net/if_pfsync.h>"
  63         print "#endif"
  64         print "#include <net/route.h>"
  65         print "#include <netinet/in.h>"
  66         print "#include <netinet/ip_mroute.h>"
  67         print "#include <netinet6/in6_var.h>"
  68         print "#include <netinet6/nd6.h>"
  69         print "#include <netinet6/ip6_mroute.h>"
  70         print "#include <stdio.h>"
  71         print "#include <cam/cam.h>"
  72         print "#include <stdbool.h>"
  73         print "#include <stddef.h>"
  74         print "#include <stdint.h>"
  75         print "#include <sysdecode.h>"
  76         print ""
  77         print ioctl_includes
  78         print ""
  79         print "const char *"
  80         print "sysdecode_ioctlname(unsigned long val)"
  81         print "{"
  82         print "\tconst char *str = NULL;"
  83         print ""
  84 }
  85
  86 /^#[    ]*define[       ]+[A-Za-z_][A-Za-z0-9_]*[       ]+_IO/ {
  87
  88         # find where the name starts
  89         for (i = 1; i <= NF; i++)
  90                 if ($i ~ /define/)
  91                         break;
  92         ++i;
  93         #
  94         printf("\t");
  95         if (n++ > 0)
  96                 printf("else ");
  97         printf("if (val == %s)\n", $i);
  98         printf("\t\tstr = \"%s\";\n", $i);
  99 }
 100 END {
 101         print ""
 102         print "\treturn (str);"
 103         print "}"
 104 }
 105 '