freebsd-dev/sys/contrib/ngatm/netnatm/msg/parsemsg.awk
2004-07-08 16:39:03 +00:00

139 lines
3.2 KiB
Awk

#
# Copyright (c) 2001-2003
# Fraunhofer Institute for Open Communication Systems (FhG Fokus).
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.
#
# Author: Hartmut Brandt <harti@freebsd.org>
#
# $Begemot: libunimsg/netnatm/msg/parsemsg.awk,v 1.3 2003/09/19 11:58:15 hbb Exp $
#
# Parse the message definition file
#
match($0, "Begemot:")!=0 {
gsub("^[^$]*", "")
gsub("[^$]*$", "")
id = $0
next
}
/^#/ {
next
}
NF == 0 {
next
}
BEGIN {
state=0
id = " * ???"
mcnt=0
begin()
}
END {
end()
}
state==0 && $1=="start" {
if(NF < 3) error("bad number of fields in message start "$0)
state = 1
msg = $2
code = parse_hex($3)
messages[mcnt] = msg
msgcond[mcnt] = $4
msgrep = 0
msgrepie = 0
cnt = 0
if(mcnt == 0) first_entry()
start_message()
next
}
state==1 && $1=="end" {
state=0
mcnt++
end_message()
next
}
state==1 {
iename[cnt]=$1
if($2 == "") $2="-"
if(match($2, "[A-Za-z][A-Za-z0-9_]*/R") == 1) {
ienum[cnt]=substr($2, 1, length($2)-2)
ierep[cnt]=1
msgrepie=1
} else {
ierep[cnt]=0
ienum[cnt]=$2
}
if(ienum[cnt] != "-") msgrep = 1
if($3 == "" || $3 == "-") {
$3 = "1"
} else {
gsub("[a-zA-Z][a-zA-Z0-9]*", "cx->&", $3)
}
iecond[cnt] = $3
cnt++
next
}
{
error("bad line: "$0)
}
function parse_hex(str, n)
{
n = 0
if(substr(str,1,2) != "0x") {
error("bad hex number" str)
}
for(i = 3; i <= length(str); i++) {
c = substr(str,i,1)
if(match(c,"[0-9]") != 0) {
n = 16 * n + c
} else if(match(c,"[a-f]")) {
if(c == "a") n = 16 * n + 10
if(c == "b") n = 16 * n + 11
if(c == "c") n = 16 * n + 12
if(c == "d") n = 16 * n + 13
if(c == "e") n = 16 * n + 14
if(c == "f") n = 16 * n + 15
} else if(match(c,"[A-F]")) {
if(c == "A") n = 16 * n + 10
if(c == "B") n = 16 * n + 11
if(c == "C") n = 16 * n + 12
if(c == "D") n = 16 * n + 13
if(c == "E") n = 16 * n + 14
if(c == "F") n = 16 * n + 15
} else {
error("bad hex digit '" c "'")
}
}
return n
}
function error(str)
{
print "error:" str >"/dev/stderr"
exit 1
}