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Conf: Show the line:char position where the syntax error happens

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This commit is contained in:
Jan Maria Matejka 2018-09-11 16:55:41 +02:00
parent 89b0af3978
commit d50b0bc437
4 changed files with 11 additions and 6 deletions
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6
conf/cf-lex.l
View File

@ -100,6 +100,7 @@ static struct include_file_stack *ifs_head;
#define YY_INPUT(buf,result,max) result = cf_read_hook(buf, max, ifs->fd);
#define YY_NO_UNPUT
#define YY_FATAL_ERROR(msg) cf_error(msg)
#define YY_USER_ACTION ifs->chno += yyleng; ifs->toklen = yyleng;
static void cf_include(char *arg, int alen);
static int check_eof(void);
@ -313,7 +314,7 @@ else: {
{WHITE}+
\n ifs->lino++;
\n ifs->lino++; ifs->chno = 0;
# BEGIN(COMMENT);
@ -323,13 +324,14 @@ else: {
<COMMENT>\n {
ifs->lino++;
ifs->chno = 0;
BEGIN(INITIAL);
}
<COMMENT>.
<CCOMM>\*\/ BEGIN(INITIAL);
<CCOMM>\n ifs->lino++;
<CCOMM>\n ifs->lino++; ifs->chno = 0;
<CCOMM>\/\* cf_error("Comment nesting not supported");
<CCOMM><<EOF>> cf_error("Unterminated comment");
<CCOMM>.

1
conf/conf.c
View File

@ -512,6 +512,7 @@ cf_error(const char *msg, ...)
va_end(args);
new_config->err_msg = cfg_strdup(buf);
new_config->err_lino = ifs->lino;
new_config->err_chno = ifs->chno - ifs->toklen + 1;
new_config->err_file_name = ifs->file_name;
cf_lex_unwind();
longjmp(conf_jmpbuf, 1);

4
conf/conf.h
View File

@ -47,6 +47,7 @@ struct config {
u32 watchdog_timeout; /* Watchdog timeout (in seconds, 0 = disabled) */
char *err_msg; /* Parser error message */
int err_lino; /* Line containing error */
int err_chno; /* Character where the parser stopped */
char *err_file_name; /* File name containing error */
char *file_name; /* Name of main configuration file */
int file_fd; /* File descriptor of main configuration file */
@ -139,6 +140,8 @@ struct include_file_stack {
char *file_name; /* File name */
int fd; /* File descriptor */
int lino; /* Current line num */
int chno; /* Current char num (on current line) */
int toklen; /* Current token length */
int depth; /* Include depth, 0 = cannot include */
struct include_file_stack *prev; /* Previous record in stack */
@ -147,7 +150,6 @@ struct include_file_stack {
extern struct include_file_stack *ifs;
int cf_lex(void);
void cf_lex_init(int is_cli, struct config *c);
void cf_lex_unwind(void);

6
sysdep/unix/main.c
View File

@ -213,7 +213,7 @@ read_config(void)
if (!unix_read_config(&conf, config_name))
{
if (conf->err_msg)
die("%s, line %d: %s", conf->err_file_name, conf->err_lino, conf->err_msg);
die("%s:%d:%d %s", conf->err_file_name, conf->err_lino, conf->err_chno, conf->err_msg);
else
die("Unable to open configuration file %s: %m", config_name);
}
@ -230,7 +230,7 @@ async_config(void)
if (!unix_read_config(&conf, config_name))
{
if (conf->err_msg)
log(L_ERR "%s, line %d: %s", conf->err_file_name, conf->err_lino, conf->err_msg);
log(L_ERR "%s:%d:%d %s", conf->err_file_name, conf->err_lino, conf->err_chno, conf->err_msg);
else
log(L_ERR "Unable to open configuration file %s: %m", config_name);
config_free(conf);
@ -251,7 +251,7 @@ cmd_read_config(char *name)
if (!unix_read_config(&conf, name))
{
if (conf->err_msg)
cli_msg(8002, "%s, line %d: %s", conf->err_file_name, conf->err_lino, conf->err_msg);
cli_msg(8002, "%s:%d:%d %s", conf->err_file_name, conf->err_lino, conf->err_chno, conf->err_msg);
else
cli_msg(8002, "%s: %m", name);
config_free(conf);