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|
#!/usr/bin/perl
#
# Create ejs interfaces for structures in a C header file
#
use File::Basename;
use Data::Dumper;
my $file = shift;
my $basename = basename($file, ".h");
require smb_interfaces;
my $parser = new smb_interfaces;
$header = $parser->parse($file);
# Create header
open(FILE, ">ejs_${basename}.h");
print FILE "/* header auto-generated by build_smb_interfaces.pl */\n\n";
print FILE "#ifndef _ejs_${basename}_h\n";
print FILE "#define _ejs_${basename}_h\n\n";
sub struct_name($)
{
my $obj = shift;
return defined($obj->{STRUCT_NAME}) ? $obj->{STRUCT_NAME} : $obj->{UNION_NAME};
}
sub prototypes_for($)
{
my $obj = shift;
my $name = struct_name($obj);
print FILE "NTSTATUS ejs_push_$name(struct ejs_rpc *, struct MprVar *, const char *, const uint32_t *);\n";
print FILE "NTSTATUS ejs_pull_$name(struct ejs_rpc *, struct MprVar *, const char *, const uint32_t *);\n";
}
foreach my $x (@{$header}) {
# Prototypes for top level structures and unions
prototypes_for($x);
# Prototypes for non-anonymous nested structures and unions
foreach my $e1 (@{$x->{DATA}}) {
foreach my $e2 (@{$e1->{DATA}}) {
if (defined($e2->{STRUCT_NAME}) or defined($e2->{UNION_NAME})) {
prototypes_for($e2);
}
}
}
}
print FILE "#endif\n";
close(FILE);
# Create file
open(FILE, ">ejs_${basename}.c");
print FILE "/* EJS wrapper functions auto-generated by build_smb_interfaces.pl */\n\n";
# Top level push/pull functions
sub print_field($$) {
my $f = shift;
my $suffix = shift;
if ($f->{TYPE} eq "char" and $f->{POINTERS} == 1) {
$type = "string";
}
if ($f->{TYPE} =~ /_t$/) {
$type = $f->{TYPE};
$type =~ s/_t$//;
}
foreach my $x (@{$f->{NAME}}) {
print FILE "\tNDR_CHECK(ejs_pull_$type(ejs, v, \"$x\", &r->$suffix.$x));\n";
}
}
foreach my $x (@{$header}) {
next, if $x->{STRUCT_NAME} eq "";
# Pull in to struct.in
print FILE "static NTSTATUS ejs_pull_$x->{STRUCT_NAME}(struct ejs_rpc *ejs, struct MprVar *v, struct $x->{STRUCT_NAME} *r)\n";
print FILE "{\n";
print FILE "\tNDR_CHECK(ejs_pull_struct_start(ejs, &v, \"input\"));\n";
foreach my $e (@{$x->{DATA}}) {
next, if $e->{NAME}[0] ne 'in';
foreach my $f (@{$e->{DATA}}) {
print_field($f, "in");
}
}
print FILE "\n\treturn NT_STATUS_OK;\n";
print FILE "}\n\n";
# Push from struct.out
print FILE "static NTSTATUS ejs_push_$x->{STRUCT_NAME}(struct ejs_rpc *ejs, struct MprVar *v, const struct $x->{STRUCT_NAME} *r)\n\n";
print FILE "{\n";
print FILE "\tNDR_CHECK(ejs_push_struct_start(ejs, &v, \"output\"));\n";
foreach my $e (@{$x->{DATA}}) {
next, if $e->{NAME}[0] ne 'out';
foreach my $f (@{$e->{DATA}}) {
print_field($f, "out");
}
}
print FILE "\n\treturn NT_STATUS_OK;\n";
print FILE "}\n\n";
}
# Top level call functions
foreach my $x (@{$header}) {
next, if $x->{STRUCT_NAME} eq "";
$raw_name = $x->{STRUCT_NAME};
$raw_name =~ s/smb_/smb_raw_/;
print FILE "static int ejs_$x->{STRUCT_NAME}(int eid, int argc, struct MprVar **argv)\n";
print FILE "{\n";
print FILE "\tstruct $x->{STRUCT_NAME} parms;\n";
print FILE "\tstruct smbcli_tree *tree;\n";
print FILE "\tNTSTATUS result;\n\n";
$output = << "__HERE__";
if (argc != 1 || argv[0]->type != MPR_TYPE_OBJECT) {
ejsSetErrorMsg(eid, "invalid arguments");
return -1;
}
tree = mprGetThisPtr(eid, "tree");
if (!tree) {
ejsSetErrorMsg(eid, "invalid tree");
return -1;
}
__HERE__
print FILE $output;
print FILE "\tresult = $raw_name(tree, ¶ms);\n\n";
print FILE "\tmpr_Return(eid, mprNTSTATUS(status));\n";
print FILE "\tif (NT_STATUS_EQUAL(status, NT_STATUS_INTERNAL_ERROR)) {\n";
print FILE "\t\treturn -1;\n";
print FILE "\t}\n\n";
print FILE "\treturn 0;\n";
print FILE "}\n\n";
}
# Module initialisation
print FILE "static int ejs_${basename}_init(int eid, int argc, struct MprVar **argv)\n";
print FILE "{\n";
print FILE "\tstruct MprVar *obj = mprInitObject(eid, \"${basename}\", argc, argtv);\n\n";
foreach my $x (@{$header}) {
next, if $x->{STRUCT_NAME} eq "";
print FILE "\tmprSetCFunction(obj, \"$x->{STRUCT_NAME}\", ejs_$x->{STRUCT_NAME});\n";
}
print FILE "}\n\n";
print FILE "NTSTATUS ejs_init_${basename}(void)\n";
print FILE "{\n";
print FILE "\treturn smbcalls_register_ejs(\"${basename}_init\", ejs_${basename}_init);\n";
print FILE "}\n";
close(FILE);
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