lib/libsysdecode/mkioctls

   1 #!/bin/sh
   2 #
   3
   4 set -e
   5
   6 if [ $# -ne 1 ]; then
   7         echo "usage: sh $0 include-dir"
   8         exit 1
   9 fi
  10
  11 includedir="$1"
  12
  13 LC_ALL=C; export LC_ALL
  14
  15 # Build a list of headers that have ioctls in them.
  16 # XXX should we use an ANSI cpp?
  17 ioctl_includes=$(
  18         cd $includedir
  19         set -e
  20         # if /bin/sh is bash this will avoid further errors due to missing commands
  21         if set -o | grep -q pipefail; then
  22                 set -o pipefail
  23         fi
  24
  25         filter='tee'
  26         if [ "${MK_PF}" = "no" ]; then
  27                 filter='egrep -v (net/pfvar|net/if_pfsync)\.h'
  28         fi
  29         # find -s would avoid the need to invoke sort but it is non-portable
  30         find -L ./* -type f -name '*.h' | \
  31                 LC_ALL=C sort | \
  32                 $filter | \
  33                 xargs egrep -l \
  34 '^#[    ]*define[       ]+[A-Za-z_][A-Za-z0-9_]*[       ]+_IO[^a-z0-9_]' |
  35                 awk '{printf("#include <%s>\\n", $1)}'
  36 )
  37
  38 if [ -z "$ioctl_includes" ]; then
  39         echo "Failed to build list of ioctl headers"
  40         exit 1
  41 fi
  42
  43 awk -v x="$ioctl_includes" 'BEGIN {print x}' |
  44         $CPP -nostdinc -I$includedir -dM -DCOMPAT_43TTY - |
  45         awk -v ioctl_includes="$ioctl_includes" '
  46 BEGIN {
  47         print "/* XXX obnoxious prerequisites. */"
  48         print "#define COMPAT_43"
  49         print "#define COMPAT_43TTY"
  50         print "#include <sys/param.h>"
  51         print "#include <sys/devicestat.h>"
  52         print "#include <sys/disklabel.h>"
  53         print "#include <sys/mman.h>"
  54         print "#include <sys/socket.h>"
  55         print "#include <sys/time.h>"
  56         print "#include <sys/tty.h>"
  57         print "#include <bsm/audit.h>"
  58         print "#include <net/ethernet.h>"
  59         print "#include <net/if.h>"
  60         print "#ifdef PF"
  61         print "#include <net/pfvar.h>"
  62         print "#include <net/if_pfsync.h>"
  63         print "#endif"
  64         print "#include <net/route.h>"
  65         print "#include <netinet/in.h>"
  66         print "#include <netinet/ip_mroute.h>"
  67         print "#include <netinet6/in6_var.h>"
  68         print "#include <netinet6/nd6.h>"
  69         print "#include <netinet6/ip6_mroute.h>"
  70         print "#include <stdio.h>"
  71         print "#include <cam/cam.h>"
  72         print "#include <cam/scsi/scsi_pass.h>"
  73         print "#include <stdbool.h>"
  74         print "#include <stddef.h>"
  75         print "#include <stdint.h>"
  76         print "#include <sysdecode.h>"
  77         print ""
  78         print ioctl_includes
  79         print ""
  80         print "const char *"
  81         print "sysdecode_ioctlname(unsigned long val)"
  82         print "{"
  83         print "\tconst char *str = NULL;"
  84         print ""
  85 }
  86
  87 /^#[    ]*define[       ]+[A-Za-z_][A-Za-z0-9_]*[       ]+_IO/ {
  88
  89         # find where the name starts
  90         for (i = 1; i <= NF; i++)
  91                 if ($i ~ /define/)
  92                         break;
  93         ++i;
  94         #
  95         printf("\t");
  96         if (n++ > 0)
  97                 printf("else ");
  98         printf("if (val == %s)\n", $i);
  99         printf("\t\tstr = \"%s\";\n", $i);
 100 }
 101 END {
 102         print ""
 103         print "\treturn (str);"
 104         print "}"
 105 }
 106 '