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|
#!/bin/sh
#
# Generate sudo_defs_table and associated defines
#
# Input should be formatted thusly:
#
# var_name
# TYPE
# description (or NULL)
# array of struct def_values if TYPE == T_TUPLE [optional]
# *callback [optional]
# Deal with optional -o (output) argument
if [ "$1" = "-o" ]; then
if [ $# -lt 2 ]; then
echo "usage: $0 [-o output] [input_file ...]" 1>&2
exit 1
fi
OUTFILE="$2"
shift 2
else
OUTFILE=def_data
fi
if [ $# -eq 0 ]; then
set -- def_data.in
fi
${AWK-awk} -v outfile=$OUTFILE '
BEGIN {
tuple_values[0] = "never"
tuple_keys["never"] = 0
ntuples = 1
header = outfile ".h"
cfile = outfile ".c"
type_map["T_INT"] = "ival"
type_map["T_UINT"] = "uival"
type_map["T_STR"] = "str"
type_map["T_FLAG"] = "flag"
type_map["T_MODE"] = "mode"
type_map["T_LIST"] = "list"
type_map["T_LOGFAC"] = "ival"
type_map["T_LOGPRI"] = "ival"
type_map["T_TUPLE"] = "tuple"
type_map["T_TIMESPEC"] = "tspec"
type_map["T_TIMEOUT"] = "ival"
type_map["T_RLIMIT"] = "str"
type_map["T_PLUGIN"] = "list"
}
{
sub(/#.*/, "", $0)
if (/^[ \t]*$/) next
if (/^[a-zA-Z]/) {
# Store previous record and begin new one
if (var)
records[count++] = sprintf("%s\n%s\n%s\n%s\n%s\n", var, type, desc, values, callback)
var = $1
type = ""
desc = ""
values = ""
callback = ""
state = 0
} else {
state++
# Strip leading/trailing whitespace
gsub(/^[ \t]+|[ \t]+$/, "")
if (state == 1) {
# type
type = $1
} else if (state == 2) {
# description
if ($0 == "NULL") {
desc = "NULL"
} else {
# Strip leading and trailing double quote and escape the rest
gsub(/^"|"$/, "")
gsub(/"/, "\\\"")
desc = sprintf("N_(\"%s\")", $0)
}
} else if (state == 3 || state == 4) {
if (/^\*/) {
callback = substr($0, 2)
} else {
if (type ~ /^T_TUPLE/) {
values = $0
# Add to tuple_values as necessary
n = split(values, vals)
for (i = 1; i <= n; i++) {
if (!(vals[i] in tuple_keys)) {
tuple_keys[vals[i]] = ntuples
tuple_values[ntuples++] = vals[i]
}
}
}
}
} else {
die("syntax error in input near line " NR)
}
}
}
END {
if (var)
records[count++] = sprintf("%s\n%s\n%s\n%s\n%s\n", var, type, desc, values, callback)
print "/* generated file, do not edit */\n" > header
print "/* generated file, do not edit */\n" > cfile
# Print out value arrays
for (i = 0; i < count; i++) {
split(records[i], fields, "\n")
if (fields[4]) {
if (fields[2] !~ /^T_TUPLE/)
die("Values list specified for non-tuple " records[1])
printf "static struct def_values def_data_%s[] = {\n", fields[1] > cfile
n = split(fields[4], t)
for (j = 1; j <= n; j++) {
printf " { \"%s\", %s },\n", t[j], t[j] > cfile
}
print " { NULL, 0 }," > cfile
print "};\n" > cfile
}
}
# Print each record
print "struct sudo_defs_types sudo_defs_table[] = {\n {" > cfile
for (i = 0; i < count; i++) {
print_record(records[i], i)
}
print "\tNULL, 0, NULL\n }\n};" > cfile
# Print out def_tuple
print "\nenum def_tuple {" > header
for (i = 0; i < ntuples; i++)
printf "%s %s", i ? ",\n" : "", tuple_values[i] > header
print "\n};" > header
}
function die(msg) {
print msg > "/dev/stderr"
exit 1
}
function print_record(rec, recnum) {
split(rec, fields, "\n")
type = fields[2]
sub(/\|.*/, "", type)
if (!(type in type_map))
die("unknown defaults type " fields[2])
# each variable gets a macro to access its value
defname = "I_" toupper(fields[1])
printf "#define %-23s %d\n", defname, recnum > header
printf "#define def_%-19s (sudo_defs_table[%s].sd_un.%s)\n",
fields[1], defname, type_map[type] > header
printf "\t\"%s\", %s,\n\t%s,\n", fields[1], fields[2], fields[3] > cfile
printf "\t%s,\n", fields[4] ? "def_data_" fields[1] : "NULL" > cfile
if (fields[5]) {
printf "\t%s,\n", fields[5] > cfile
}
print " }, {" > cfile
}
' "$@"
|
