BadVPN – Rev 1
?pathlinks?
/**
* @file ncd_parser_test.c
* @author Ambroz Bizjak <ambrop7@gmail.com>
*
* @section LICENSE
*
* 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.
* 3. Neither the name of the author nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 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.
*/
#include <stddef.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <inttypes.h>
#include <misc/debug.h>
#include <misc/expstring.h>
#include <base/BLog.h>
#include <ncd/NCDConfigParser.h>
#include <ncd/NCDValGenerator.h>
#include <ncd/NCDSugar.h>
static int generate_val (NCDValue *value, ExpString *out_str)
{
switch (NCDValue_Type(value)) {
case NCDVALUE_STRING: {
const char *str = NCDValue_StringValue(value);
size_t len = NCDValue_StringLength(value);
if (!ExpString_AppendChar(out_str, '"')) {
goto fail;
}
for (size_t i = 0; i < len; i++) {
if (str[i] == '\0') {
char buf[5];
snprintf(buf, sizeof(buf), "\\x%02"PRIx8, (uint8_t)str[i]);
if (!ExpString_Append(out_str, buf)) {
goto fail;
}
continue;
}
if (str[i] == '"' || str[i] == '\\') {
if (!ExpString_AppendChar(out_str, '\\')) {
goto fail;
}
}
if (!ExpString_AppendChar(out_str, str[i])) {
goto fail;
}
}
if (!ExpString_AppendChar(out_str, '"')) {
goto fail;
}
} break;
case NCDVALUE_LIST: {
if (!ExpString_AppendChar(out_str, '{')) {
goto fail;
}
int is_first = 1;
for (NCDValue *e = NCDValue_ListFirst(value); e; e = NCDValue_ListNext(value, e)) {
if (!is_first) {
if (!ExpString_Append(out_str, ", ")) {
goto fail;
}
}
if (!generate_val(e, out_str)) {
goto fail;
}
is_first = 0;
}
if (!ExpString_AppendChar(out_str, '}')) {
goto fail;
}
} break;
case NCDVALUE_MAP: {
if (!ExpString_AppendChar(out_str, '[')) {
goto fail;
}
int is_first = 1;
for (NCDValue *ekey = NCDValue_MapFirstKey(value); ekey; ekey = NCDValue_MapNextKey(value, ekey)) {
NCDValue *eval = NCDValue_MapKeyValue(value, ekey);
if (!is_first) {
if (!ExpString_Append(out_str, ", ")) {
goto fail;
}
}
if (!generate_val(ekey, out_str)) {
goto fail;
}
if (!ExpString_AppendChar(out_str, ':')) {
goto fail;
}
if (!generate_val(eval, out_str)) {
goto fail;
}
is_first = 0;
}
if (!ExpString_AppendChar(out_str, ']')) {
goto fail;
}
} break;
case NCDVALUE_VAR: {
if (!ExpString_Append(out_str, NCDValue_VarName(value))) {
goto fail;
}
} break;
case NCDVALUE_INVOC: {
if (!generate_val(NCDValue_InvocFunc(value), out_str)) {
goto fail;
}
if (!ExpString_AppendChar(out_str, '(')) {
goto fail;
}
if (!generate_val(NCDValue_InvocArg(value), out_str)) {
goto fail;
}
if (!ExpString_AppendChar(out_str, ')')) {
goto fail;
}
} break;
default: ASSERT(0);
}
return 1;
fail:
return 0;
}
static void print_indent (unsigned int indent)
{
while (indent > 0) {
printf(" ");
indent--;
}
}
static void print_value (NCDValue *v, unsigned int indent)
{
ExpString estr;
if (!ExpString_Init(&estr)) {
DEBUG("ExpString_Init failed");
exit(1);
}
if (!generate_val(v, &estr)) {
DEBUG("generate_val failed");
exit(1);
}
print_indent(indent);
printf("%s\n", ExpString_Get(&estr));
ExpString_Free(&estr);
}
static void print_block (NCDBlock *block, unsigned int indent)
{
for (NCDStatement *st = NCDBlock_FirstStatement(block); st; st = NCDBlock_NextStatement(block, st)) {
const char *name = NCDStatement_Name(st) ? NCDStatement_Name(st) : "";
switch (NCDStatement_Type(st)) {
case NCDSTATEMENT_REG: {
const char *objname = NCDStatement_RegObjName(st) ? NCDStatement_RegObjName(st) : "";
const char *cmdname = NCDStatement_RegCmdName(st);
print_indent(indent);
printf("reg name=%s objname=%s cmdname=%s args:\n", name, objname, cmdname);
print_value(NCDStatement_RegArgs(st), indent + 2);
} break;
case NCDSTATEMENT_IF: {
print_indent(indent);
printf("if name=%s\n", name);
NCDIfBlock *ifb = NCDStatement_IfBlock(st);
for (NCDIf *ifc = NCDIfBlock_FirstIf(ifb); ifc; ifc = NCDIfBlock_NextIf(ifb, ifc)) {
print_indent(indent + 2);
printf("if\n");
print_value(NCDIf_Cond(ifc), indent + 4);
print_indent(indent + 2);
printf("then\n");
print_block(NCDIf_Block(ifc), indent + 4);
}
if (NCDStatement_IfElse(st)) {
print_indent(indent + 2);
printf("else\n");
print_block(NCDStatement_IfElse(st), indent + 4);
}
} break;
case NCDSTATEMENT_FOREACH: {
const char *name1 = NCDStatement_ForeachName1(st);
const char *name2 = NCDStatement_ForeachName2(st) ? NCDStatement_ForeachName2(st) : "";
print_indent(indent);
printf("foreach name=%s name1=%s name2=%s\n", name, name1, name2);
print_block(NCDStatement_ForeachBlock(st), indent + 2);
} break;
case NCDSTATEMENT_BLOCK: {
print_indent(indent);
printf("block name=%s\n", name);
print_block(NCDStatement_BlockBlock(st), indent + 2);
} break;
default: {
print_indent(indent);
printf("unknown_statement_type name=%s\n", name);
} break;
}
}
}
int main (int argc, char **argv)
{
int res = 1;
if (argc != 3) {
printf("Usage: %s <desugar=0/1> <string>\n", (argc > 0 ? argv[0] : ""));
goto fail0;
}
int desugar = atoi(argv[1]);
char *text = argv[2];
BLog_InitStdout();
// parse
NCDProgram prog;
if (!NCDConfigParser_Parse(text, strlen(text), &prog)) {
DEBUG("NCDConfigParser_Parse failed");
goto fail1;
}
// desugar
if (desugar) {
if (!NCDSugar_Desugar(&prog)) {
DEBUG("NCDSugar_Desugar failed");
goto fail2;
}
}
// print
for (NCDProgramElem *elem = NCDProgram_FirstElem(&prog); elem; elem = NCDProgram_NextElem(&prog, elem)) {
switch (NCDProgramElem_Type(elem)) {
case NCDPROGRAMELEM_PROCESS: {
NCDProcess *p = NCDProgramElem_Process(elem);
printf("process name=%s is_template=%d\n", NCDProcess_Name(p), NCDProcess_IsTemplate(p));
print_block(NCDProcess_Block(p), 2);
} break;
case NCDPROGRAMELEM_INCLUDE: {
printf("include path=%s\n", NCDProgramElem_IncludePathData(elem));
} break;
case NCDPROGRAMELEM_INCLUDE_GUARD: {
printf("include_guard id=%s\n", NCDProgramElem_IncludeGuardIdData(elem));
} break;
default: ASSERT(0);
}
}
res = 0;
fail2:
NCDProgram_Free(&prog);
fail1:
BLog_Free();
fail0:
return res;
}