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lighttpd2/src/config_parser.rl

871 lines
24 KiB

#include "base.h"
#include "condition.h"
#include "config_parser.h"
#if 0
#define _printf(fmt, ...) g_print(fmt, __VA_ARGS__)
#else
#define _printf(fmt, ...) /* */
#endif
/** config parser state machine **/
%%{
## ragel stuff
machine config_parser;
variable p ctx->p;
variable pe ctx->pe;
variable eof ctx->eof;
access ctx->;
prepush {
//_printf("current stacksize: %d, top: %d\n", ctx->stacksize, ctx->top);
/* increase stacksize if necessary */
if (ctx->stacksize == ctx->top)
{
/* increase stacksize by 8 */
ctx->stack = g_realloc(ctx->stack, sizeof(int) * (ctx->stacksize + 8));
ctx->stacksize += 8;
}
}
## actions
action mark { ctx->mark = fpc; }
# basic types
action boolean {
option *o;
o = option_new_bool(*ctx->mark == 't' ? TRUE : FALSE);
g_queue_push_head(ctx->option_stack, o);
_printf("got boolean %s in line %zd\n", *ctx->mark == 't' ? "true" : "false", ctx->line);
}
action integer {
option *o;
guint i = 0;
for (gchar *c = ctx->mark; c < fpc; c++)
i = i * 10 + *c - 48;
o = option_new_int(i);
/* push option onto stack */
g_queue_push_head(ctx->option_stack, o);
_printf("got integer %d in line %zd\n", i, ctx->line);
}
action integer_suffix {
option *o;
GString *str;
o = g_queue_peek_head(ctx->option_stack);
str = g_string_new_len(ctx->mark, fpc - ctx->mark);
if (g_str_equal(str->str, "kbyte")) o->value.opt_int *= 1024;
else if (g_str_equal(str->str, "mbyte")) o->value.opt_int *= 1024 * 1024;
else if (g_str_equal(str->str, "gbyte")) o->value.opt_int *= 1024 * 1024 * 1024;
else if (g_str_equal(str->str, "kbit")) o->value.opt_int *= 1024;
else if (g_str_equal(str->str, "mbit")) o->value.opt_int *= 1024 * 1024;
else if (g_str_equal(str->str, "gbit")) o->value.opt_int *= 1024 * 1024 * 1024;
else if (g_str_equal(str->str, "min")) o->value.opt_int *= 60;
else if (g_str_equal(str->str, "hours")) o->value.opt_int *= 60 * 60;
else if (g_str_equal(str->str, "days")) o->value.opt_int *= 60 * 60 * 24;
g_string_free(str, TRUE);
_printf("got int with suffix: %d\n", o->value.opt_int);
/* make sure there was no overflow that led to negative numbers */
if (o->value.opt_int < 0) {
log_warning(srv, NULL, "integer value overflowed in line %zd of %s\n", ctx->line, ctx->filename);
return FALSE;
}
}
action string {
option *o;
GString *str;
str = g_string_new_len(ctx->mark+1, fpc - ctx->mark - 2);
o = option_new_string(str);
g_queue_push_head(ctx->option_stack, o);
_printf("got string %s", "");
for (gchar *c = ctx->mark + 1; c < fpc - 1; c++) _printf("%c", *c);
_printf(" in line %zd\n", ctx->line);
}
# advanced types
action list_start {
option *o;
/* create new list option and put it on stack, list entries are put in it by getting the previous option from the stack */
o = option_new_list();
g_queue_push_head(ctx->option_stack, o);
fcall list_scanner;
}
action list_push {
option *o, *l;
/* pop current option form stack and append it to the new top of the stack option (the list) */
o = g_queue_pop_head(ctx->option_stack);
l = g_queue_peek_head(ctx->option_stack);
assert(l->type == OPTION_LIST);
g_array_append_val(l->value.opt_list, o);
_printf("list_push %s\n", option_type_string(o->type));
}
action list_end {
fret;
}
action hash_start {
option *o;
/* create new hash option and put it on stack, if a key-value pair is encountered, get it by walking 2 steps back the stack */
o = option_new_hash();
g_queue_push_head(ctx->option_stack, o);
fcall hash_scanner;
}
action hash_push {
option *k, *v, *h; /* key value hashtable */
GString *str;
v = g_queue_pop_head(ctx->option_stack);
k = g_queue_pop_head(ctx->option_stack);
h = g_queue_peek_head(ctx->option_stack);
/* duplicate key so option can be free'd */
str = g_string_new_len(k->value.opt_string->str, k->value.opt_string->len);
g_hash_table_insert(h->value.opt_hash, str, v);
option_free(k);
_printf("%s\n", "hash_push");
}
action hash_end {
fret;
}
action block_start {
fcall block_scanner;
}
action block_end {
fret;
}
action keyvalue_start {
fpc--;
fcall value_scanner;
}
action keyvalue_end {
option *k, *v, *l;
/* we have a key and a value on the stack; convert them to a list with 2 elements */
v = g_queue_pop_head(ctx->option_stack);
k = g_queue_pop_head(ctx->option_stack);
l = option_new_list();
g_array_append_val(l->value.opt_list, k);
g_array_append_val(l->value.opt_list, v);
/* push list on the stack */
g_queue_push_head(ctx->option_stack, l);
fpc--;
fret;
}
action value {
/*
_printf("got value %s", "");
for (gchar *c = ctx->mark; c < fpc; c++) _printf("%c", *c);
_printf(" in line %zd\n", ctx->line);
*/
}
action value_statement_op {
ctx->value_op = *fpc;
}
action value_statement {
/* value (+|-|*|/) value */
/* compute new value out of the two */
option *l, *r, *o;
gboolean free_l, free_r;
free_l = free_r = TRUE;
r = g_queue_pop_head(ctx->option_stack);
l = g_queue_pop_head(ctx->option_stack);
o = NULL;
if (l->type == OPTION_INT && r->type == OPTION_INT) {
switch (ctx->value_op) {
case '+': o = option_new_int(l->value.opt_int + r->value.opt_int); break;
case '-': o = option_new_int(l->value.opt_int - r->value.opt_int); break;
case '*': o = option_new_int(l->value.opt_int * r->value.opt_int); break;
case '/': o = option_new_int(l->value.opt_int / r->value.opt_int); break;
}
}
else if (l->type == OPTION_STRING) {
o = l;
free_l = FALSE;
if (r->type == OPTION_STRING && ctx->value_op == '+') {
/* str + str */
o->value.opt_string = g_string_append_len(o->value.opt_string, r->value.opt_string->str, r->value.opt_string->len);
}
else if (r->type == OPTION_INT && ctx->value_op == '*') {
/* str * int */
if (r->value.opt_int < 0) {
log_warning(srv, NULL, "string multiplication with negative number (%d)?", r->value.opt_int);
return FALSE;
}
else if (r->value.opt_int == 0) {
o->value.opt_string = g_string_truncate(o->value.opt_string, 0);
}
else {
GString *str;
str = g_string_new_len(l->value.opt_string->str, l->value.opt_string->len);
for (gint i = 1; i < r->value.opt_int; i++)
o->value.opt_string = g_string_append_len(o->value.opt_string, str->str, str->len);
g_string_free(str, TRUE);
}
}
}
else if (l->type == OPTION_LIST) {
if (ctx->value_op == '+') {
/* append r to the end of l */
free_l = FALSE; /* use l as the new o */
free_r = FALSE; /* r gets appended to o */
o = l;
g_array_append_val(o->value.opt_list, r);
}
else if (ctx->value_op == '*') {
/* merge l and r */
GArray *a;
free_l = FALSE;
o = l;
a = g_array_sized_new(FALSE, FALSE, sizeof(option*), r->value.opt_list->len);
a = g_array_append_vals(a, r->value.opt_list->data, r->value.opt_list->len); /* copy old list from r to a */
o->value.opt_list = g_array_append_vals(o->value.opt_list, a->data, a->len); /* append data from a to o */
g_array_free(a, FALSE); /* free a but not the data because it is now in o */
}
}
else if (l->type == OPTION_HASH && r->type == OPTION_HASH && ctx->value_op == '+') {
/* merge hashtables */
GHashTableIter iter;
gpointer key, value;
free_l = FALSE; /* keep l, it's the new o */
o = l;
g_hash_table_iter_init(&iter, r->value.opt_hash);
while (g_hash_table_iter_next(&iter, &key, &value)) {
g_hash_table_insert(o->value.opt_hash, key, value);
g_hash_table_iter_steal(&iter); /* steal key->value so it doesn't get deleted when destroying r */
}
}
if (o == NULL) {
log_warning(srv, NULL, "erronous value statement: %s %c %s in line %zd\n", option_type_string(l->type), ctx->value_op, option_type_string(r->type), ctx->line);
return FALSE;
}
_printf("value statement: %s %c %s => %s in line %zd\n", option_type_string(l->type), ctx->value_op, option_type_string(r->type), option_type_string(o->type), ctx->line);
if (free_l)
option_free(l);
if (free_r)
option_free(r);
g_queue_push_head(ctx->option_stack, o);
}
action varname {
/* varname, push it as string option onto the stack */
option *o;
GString *str;
str = g_string_new_len(ctx->mark, fpc - ctx->mark);
o = option_new_string(str);
g_queue_push_head(ctx->option_stack, o);
}
action actionref {
/* varname is on the stack */
option *o, *r;
o = g_queue_pop_head(ctx->option_stack);
/* action refs starting with "var." are user defined variables */
if (g_str_has_prefix(o->value.opt_string->str, "var.")) {
/* look up var in hashtable, push option onto stack */
r = g_hash_table_lookup(ctx->uservars, o->value.opt_string);
if (r == NULL) {
log_warning(srv, NULL, "unknown variable '%s'", o->value.opt_string->str);
return FALSE;
}
}
else {
/* real action, lookup hashtable and create new action option */
action *a;
a = g_hash_table_lookup(ctx->action_blocks, o->value.opt_string);
if (a == NULL) {
log_warning(srv, NULL, "unknown action block referenced: %s", o->value.opt_string->str);
return FALSE;
}
r = option_new_action(srv, a);
}
g_queue_push_head(ctx->option_stack, r);
option_free(o);
}
action operator {
if ((fpc - ctx->mark) == 1) {
switch (*ctx->mark) {
case '<': ctx->op = CONFIG_COND_LT; break;
case '>': ctx->op = CONFIG_COND_GT; break;
}
}
else {
if (*ctx->mark == '>' && *(ctx->mark+1) == '=') ctx->op = CONFIG_COND_GE;
else if (*ctx->mark == '<' && *(ctx->mark+1) == '=') ctx->op = CONFIG_COND_LE;
else if (*ctx->mark == '=' && *(ctx->mark+1) == '=') ctx->op = CONFIG_COND_EQ;
else if (*ctx->mark == '!' && *(ctx->mark+1) == '=') ctx->op = CONFIG_COND_NE;
else if (*ctx->mark == '=' && *(ctx->mark+1) == '~') ctx->op = CONFIG_COND_MATCH;
else if (*ctx->mark == '!' && *(ctx->mark+1) == '~') ctx->op = CONFIG_COND_NOMATCH;
}
}
# statements
action assignment {
option *val, *name;
action *a, *al;
/* top of the stack is the value, then the varname as string option */
val = g_queue_pop_head(ctx->option_stack);
name = g_queue_pop_head(ctx->option_stack);
assert(name->type == OPTION_STRING);
_printf("got assignment: %s = %s; in line %zd\n", name->value.opt_string->str, option_type_string(val->type), ctx->line);
if (ctx->in_setup_block) {
/* in setup { } block => set default values for options */
/* todo name */
}
else if (g_str_has_prefix(name->value.opt_string->str, "var.")) {
/* assignment vor user defined variable, insert into hashtable */
g_hash_table_insert(ctx->uservars, name->value.opt_string, val);
}
else {
/* normal assignment */
a = option_action(srv, name->value.opt_string->str, val);
if (a == NULL)
return FALSE;
al = g_queue_peek_head(ctx->action_list_stack);
g_array_append_val(al->value.list, a);
option_free(name);
}
}
action function_noparam {
option *name;
action *a, *al;
name = g_queue_pop_head(ctx->option_stack);
assert(name->type == OPTION_STRING);
_printf("got function: %s; in line %zd\n", name->value.opt_string->str, ctx->line);
if (g_str_equal(name->value.opt_string->str, "break")) {
}
else if (g_str_equal(name->value.opt_string->str, "__halt")) {
}
else {
if (ctx->in_setup_block) {
/* we are in the setup { } block, call setups and don't append to action list */
if (!call_setup(srv, name->value.opt_string->str, NULL)) {
return FALSE;
}
}
else {
al = g_queue_peek_head(ctx->action_list_stack);
a = create_action(srv, name->value.opt_string->str, NULL);
if (a == NULL)
return FALSE;
g_array_append_val(al->value.list, a);
}
}
}
action function_param {
/* similar to assignment */
option *val, *name;
action *a, *al;
/* top of the stack is the value, then the varname as string option */
val = g_queue_pop_head(ctx->option_stack);
name = g_queue_pop_head(ctx->option_stack);
assert(name->type == OPTION_STRING);
_printf("got function: %s %s; in line %zd\n", name->value.opt_string->str, option_type_string(val->type), ctx->line);
if (g_str_equal(name->value.opt_string->str, "include")) {
if (val->type != OPTION_STRING) {
log_warning(srv, NULL, "include directive takes a string as parameter, %s given", option_type_string(val->type));
return FALSE;
}
if (!config_parser_file(srv, ctx_stack, val->value.opt_string->str))
return FALSE;
option_free(val);
}
else if (g_str_equal(name->value.opt_string->str, "include_shell")) {
if (val->type != OPTION_STRING) {
log_warning(srv, NULL, "include_shell directive takes a string as parameter, %s given", option_type_string(val->type));
return FALSE;
}
if (!config_parser_shell(srv, ctx_stack, val->value.opt_string->str))
return FALSE;
option_free(val);
}
else {
/* TODO */
if (ctx->in_setup_block) {
/* we are in the setup { } block, call setups and don't append to action list */
if (!call_setup(srv, name->value.opt_string->str, val)) {
return FALSE;
}
}
else {
al = g_queue_peek_head(ctx->action_list_stack);
a = create_action(srv, name->value.opt_string->str, val);
if (a == NULL)
return FALSE;
g_array_append_val(al->value.list, a);
}
}
option_free(name);
}
action condition_start {
/* stack: value, varname OR value, key, varname */
option *v, *n, *k;
gchar *str;
condition *cond;
condition_lvalue *lvalue;
v = g_queue_pop_head(ctx->option_stack);
if (ctx->condition_with_key)
k = g_queue_pop_head(ctx->option_stack);
else
k = NULL;
n = g_queue_pop_head(ctx->option_stack);
assert(n->type == OPTION_STRING);
_printf("got condition: %s:%s %s %s in line %zd\n", n->value.opt_string->str, ctx->condition_with_key ? k->value.opt_string->str : "", comp_op_to_string(ctx->op), option_type_string(v->type), ctx->line);
/* create condition lvalue */
str = n->value.opt_string->str;
if (g_str_equal(str, "req.path") || g_str_equal(str, "request.path"))
lvalue = condition_lvalue_new(COMP_REQUEST_PATH, NULL);
else {
log_warning(srv, NULL, "unkown lvalue for condition: %s", str);
return FALSE;
}
if (v->type == OPTION_STRING) {
cond = condition_new_string(srv, ctx->op, lvalue, v->value.opt_string);
}
else if (v->type == OPTION_INT)
cond = condition_new_int(srv, ctx->op, lvalue, (gint64) v->value.opt_int);
else {
cond = NULL;
}
if (cond == NULL) {
log_warning(srv, NULL, "could not create condition", "");
return FALSE;
}
g_queue_push_head(ctx->condition_stack, cond);
g_queue_push_head(ctx->action_list_stack, action_new_list());
/* TODO: free stuff */
ctx->condition_with_key = FALSE;
}
action condition_end {
condition *cond;
action *a, *al;
cond = g_queue_pop_head(ctx->condition_stack);
al = g_queue_pop_head(ctx->action_list_stack);
a = action_new_condition(cond, al);
al = g_queue_peek_head(ctx->action_list_stack);
g_array_append_val(al->value.list, a);
}
action condition_key {
ctx->condition_with_key = TRUE;
}
action action_block_start {
option *o;
action *al;
o = g_queue_pop_head(ctx->option_stack);
assert(o->type == OPTION_STRING);
if (ctx->in_setup_block) {
/* no block inside the setup block allowed */
assert(NULL); /* TODO */
}
if (g_str_equal(o->value.opt_string->str, "setup")) {
_printf("entered setup block in line %zd\n", ctx->line);
ctx->in_setup_block = TRUE;
}
else {
GString *str;
_printf("action block %s in line %zd\n", o->value.opt_string->str, ctx->line);
/* create new action list and put it on the stack */
al = action_new_list();
g_queue_push_head(ctx->action_list_stack, al);
/* insert into hashtable for later lookups */
str = g_string_new_len(o->value.opt_string->str, o->value.opt_string->len);
g_hash_table_insert(ctx->action_blocks, str, al);
}
option_free(o);
}
action action_block_end {
if (ctx->in_setup_block) {
ctx->in_setup_block = FALSE;
}
else {
/* pop action list stack */
g_queue_pop_head(ctx->action_list_stack);
}
}
## definitions
# misc stuff
line_sane = ( '\n' ) >{ ctx->line++; };
line_weird = ( '\r' ) >{ ctx->line++; };
line_insane = ( '\r\n' ) >{ ctx->line--; };
line = ( line_sane | line_weird | line_insane );
ws = ( '\t' | ' ' );
noise = ( ws | line );
comment = ( '#' (any - line)* line );
block = ( '{' >block_start );
# basic types
boolean = ( 'true' | 'false' ) %boolean;
integer_suffix_bytes = ( 'byte' | 'kbyte' | 'mbyte' | 'gbyte' | 'tbyte' | 'pbyte' );
integer_suffix_bits = ( 'bit' | 'kbit' | 'mbit' | 'gbit' );
integer_suffix_seconds = ( 'sec' | 'min' | 'hours' | 'days' );
integer_suffix = ( integer_suffix_bytes | integer_suffix_bits | integer_suffix_seconds ) >mark %integer_suffix;
integer = ( 0 | ( [1-9] [0-9]* ) %integer (ws? integer_suffix)? );
string = ( '"' (any-'"')* '"' ) %string;
# advanced types
varname = ( (alpha ( alnum | [._] )*) - boolean ) >mark %varname;
actionref = ( varname ) %actionref;
list = ( '(' >list_start );
hash = ( '[' >hash_start );
keyvalue = ( (string | integer) ws* '=>' ws* (any - ws) >keyvalue_start );
value = ( boolean | integer | string | list | hash | keyvalue | actionref ) >mark %value;
value_statement = ( value (ws* ('+'|'-'|'*'|'/') >value_statement_op ws* value %value_statement)? );
hash_elem = ( string >mark noise* ':' noise* value );
operator = ( '==' | '!=' | '<' | '<=' | '>' | '>=' | '=~' | '!~' ) >mark %operator;
# statements
assignment = ( varname ws* '=' ws* value_statement ';' ) %assignment;
function_noparam = ( varname ';' ) %function_noparam;
function_param = ( varname ws+ value_statement ';') %function_param;
function = ( function_noparam | function_param );
condition = ( varname ('[' string >mark ']' %condition_key)? ws* operator ws* value_statement noise* block >condition_start ) %condition_end;
action_block = ( varname noise* block >action_block_start ) %action_block_end;
statement = ( assignment | function | condition | action_block );
# scanner
value_scanner := ( value (any - value - ws) >keyvalue_end );
block_scanner := ( (noise | comment | statement)* '}' >block_end );
list_scanner := ( noise* (value %list_push (noise* ',' noise* value %list_push)*)? noise* ')' >list_end );
hash_scanner := ( noise* (hash_elem %hash_push (noise* ',' noise* hash_elem %hash_push)*)? noise* ']' >hash_end );
main := (noise | comment | statement)* '\00';
}%%
%% write data;
GList *config_parser_init(server* srv) {
config_parser_context_t *ctx = config_parser_context_new(srv, NULL);
srv->mainaction = action_new_list();
g_queue_push_head(ctx->action_list_stack, srv->mainaction);
return g_list_append(NULL, ctx);
}
void config_parser_finish(server *srv, GList *ctx_stack) {
config_parser_context_t *ctx;
GHashTableIter iter;
gpointer key, value;
_printf("ctx_stack size: %u\n", g_list_length(ctx_stack));
/* clear all contexts from the stack */
while ((ctx = g_list_nth_data(ctx_stack, 1)) != NULL) {
config_parser_context_free(srv, ctx, FALSE);
}
ctx = (config_parser_context_t*) ctx_stack->data;
g_hash_table_iter_init(&iter, ctx->action_blocks);
while (g_hash_table_iter_next(&iter, &key, &value)) {
g_hash_table_iter_steal(&iter);
g_string_free(key, TRUE);
}
g_hash_table_destroy(ctx->action_blocks);
g_hash_table_iter_init(&iter, ctx->uservars);
while (g_hash_table_iter_next(&iter, &key, &value)) {
g_hash_table_iter_steal(&iter);
g_string_free(key, TRUE);
}
g_hash_table_destroy(ctx->uservars);
config_parser_context_free(srv, ctx, TRUE);
g_list_free(ctx_stack);
}
config_parser_context_t *config_parser_context_new(server *srv, GList *ctx_stack) {
config_parser_context_t *ctx;
UNUSED(srv);
ctx = g_slice_new0(config_parser_context_t);
ctx->line = 1;
/* allocate stack of 8 items. sufficient for most configs, will grow when needed */
ctx->stack = (int*) g_malloc(sizeof(int) * 8);
ctx->stacksize = 8;
if (ctx_stack != NULL) {
/* inherit old stacks */
ctx->action_list_stack = ((config_parser_context_t*) ctx_stack->data)->action_list_stack;
ctx->option_stack = ((config_parser_context_t*) ctx_stack->data)->option_stack;
ctx->condition_stack = ((config_parser_context_t*) ctx_stack->data)->condition_stack;
ctx->action_blocks = ((config_parser_context_t*) ctx_stack->data)->action_blocks;
ctx->uservars = ((config_parser_context_t*) ctx_stack->data)->uservars;
}
else {
ctx->action_blocks = g_hash_table_new_full((GHashFunc) g_string_hash, (GEqualFunc) g_string_equal, NULL, NULL);
ctx->uservars = g_hash_table_new_full((GHashFunc) g_string_hash, (GEqualFunc) g_string_equal, NULL, NULL);
ctx->action_list_stack = g_queue_new();
ctx->option_stack = g_queue_new();
ctx->condition_stack = g_queue_new();
}
return ctx;
}
void config_parser_context_free(server *srv, config_parser_context_t *ctx, gboolean free_queues)
{
g_free(ctx->stack);
if (free_queues) {
if (g_queue_get_length(ctx->action_list_stack) > 0) {
action *a;
while ((a = g_queue_pop_head(ctx->action_list_stack)))
action_release(srv, a);
}
if (g_queue_get_length(ctx->option_stack) > 0) {
option *o;
while ((o = g_queue_pop_head(ctx->option_stack)))
option_free(o);
}
g_queue_free(ctx->action_list_stack);
g_queue_free(ctx->option_stack);
}
g_slice_free(config_parser_context_t, ctx);
}
gboolean config_parser_file(server *srv, GList *ctx_stack, const gchar *path) {
config_parser_context_t *ctx;
gboolean res;
GError *err = NULL;
ctx = config_parser_context_new(srv, ctx_stack);
ctx->filename = (gchar*) path;
if (!g_file_get_contents(path, &ctx->ptr, &ctx->len, &err))
{
/* could not read file */
log_warning(srv, NULL, "could not read config file \"%s\". reason: \"%s\" (%d)", path, err->message, err->code);
config_parser_context_free(srv, ctx, FALSE);
g_error_free(err);
return FALSE;
}
/* push on stack */
ctx_stack = g_list_prepend(ctx_stack, ctx);
res = config_parser_buffer(srv, ctx_stack);
if (!res)
log_warning(srv, NULL, "config parsing failed in line %zd of %s", ctx->line, ctx->filename);
/* pop from stack */
ctx_stack = g_list_delete_link(ctx_stack, ctx_stack);
/* have to free the buffer on our own */
g_free(ctx->ptr);
config_parser_context_free(srv, ctx, FALSE);
return res;
}
gboolean config_parser_shell(server *srv, GList *ctx_stack, const gchar *command)
{
gboolean res;
gchar* _stdout;
gchar* _stderr;
gint status;
config_parser_context_t *ctx;
GError *err = NULL;
ctx = config_parser_context_new(srv, ctx_stack);
ctx->filename = (gchar*) command;
if (!g_spawn_command_line_sync(command, &_stdout, &_stderr, &status, &err))
{
log_warning(srv, NULL, "error launching shell command \"%s\": %s (%d)", command, err->message, err->code);
config_parser_context_free(srv, ctx, FALSE);
g_error_free(err);
return FALSE;
}
if (status != 0)
{
log_warning(srv, NULL, "shell command \"%s\" exited with status %d", command, status);
log_debug(srv, NULL, "stdout:\n-----\n%s\n-----\nstderr:\n-----\n%s\n-----", _stdout, _stderr);
g_free(_stdout);
g_free(_stderr);
config_parser_context_free(srv, ctx, FALSE);
return FALSE;
}
ctx->len = strlen(_stdout);
ctx->ptr = _stdout;
log_debug(srv, NULL, "included shell output from \"%s\" (%zu bytes)", command, ctx->len, _stdout);
/* push on stack */
ctx_stack = g_list_prepend(ctx_stack, ctx);
/* parse buffer */
res = config_parser_buffer(srv, ctx_stack);
/* pop from stack */
ctx_stack = g_list_delete_link(ctx_stack, ctx_stack);
g_free(_stdout);
g_free(_stderr);
config_parser_context_free(srv, ctx, FALSE);
return res;
}
gboolean config_parser_buffer(server *srv, GList *ctx_stack)
{
config_parser_context_t *ctx;
/* get top of stack */
ctx = (config_parser_context_t*) ctx_stack->data;
ctx->p = ctx->ptr;
ctx->pe = ctx->ptr + ctx->len + 1; /* marks the end of the data to scan (+1 because of trailing \0 char) */
%% write init;
%% write exec;
if (ctx->cs == config_parser_error || ctx->cs == config_parser_first_final)
{
/* parse error */
log_warning(srv, NULL, "parse error in line %zd of \"%s\" at character %c (0x%.2x)", ctx->line, ctx->filename, *ctx->p, *ctx->p);
return FALSE;
}
return TRUE;
}