mirror of
https://github.com/tmux/tmux.git
synced 2024-11-05 18:38:48 +00:00
yacc(1) copies its union so it is not a good place to store
TAILQ_HEADs. Allocate them instead. Found from a problem reported by sthen@.
This commit is contained in:
nicm
Nicholas Marriott
parent
1a3a973bd0
commit
17bc11bd15
257
cmd-parse.y
257
cmd-parse.y
@ -64,7 +64,7 @@ struct cmd_parse_state {
|
||||
u_int escapes;
|
||||
|
||||
char *error;
|
||||
struct cmd_parse_commands commands;
|
||||
struct cmd_parse_commands *commands;
|
||||
|
||||
struct cmd_parse_scope *scope;
|
||||
TAILQ_HEAD(, cmd_parse_scope) stack;
|
||||
@ -73,6 +73,7 @@ static struct cmd_parse_state parse_state;
|
||||
|
||||
static char *cmd_parse_get_error(const char *, u_int, const char *);
|
||||
static void cmd_parse_free_command(struct cmd_parse_command *);
|
||||
static struct cmd_parse_commands *cmd_parse_new_commands(void);
|
||||
static void cmd_parse_free_commands(struct cmd_parse_commands *);
|
||||
|
||||
%}
|
||||
@ -87,9 +88,9 @@ static void cmd_parse_free_commands(struct cmd_parse_commands *);
|
||||
int flag;
|
||||
struct {
|
||||
int flag;
|
||||
struct cmd_parse_commands commands;
|
||||
struct cmd_parse_commands *commands;
|
||||
} elif;
|
||||
struct cmd_parse_commands commands;
|
||||
struct cmd_parse_commands *commands;
|
||||
struct cmd_parse_command *command;
|
||||
}
|
||||
|
||||
@ -114,45 +115,46 @@ lines : /* empty */
|
||||
{
|
||||
struct cmd_parse_state *ps = &parse_state;
|
||||
|
||||
TAILQ_CONCAT(&ps->commands, &$1, entry);
|
||||
ps->commands = $1;
|
||||
}
|
||||
|
||||
statements : statement '\n'
|
||||
{
|
||||
TAILQ_INIT(&$$);
|
||||
TAILQ_CONCAT(&$$, &$1, entry);
|
||||
$$ = $1;
|
||||
}
|
||||
| statements statement '\n'
|
||||
{
|
||||
TAILQ_INIT(&$$);
|
||||
TAILQ_CONCAT(&$$, &$1, entry);
|
||||
TAILQ_CONCAT(&$$, &$2, entry);
|
||||
$$ = $1;
|
||||
TAILQ_CONCAT($$, $2, entry);
|
||||
free($2);
|
||||
}
|
||||
|
||||
|
||||
statement : condition
|
||||
{
|
||||
struct cmd_parse_state *ps = &parse_state;
|
||||
|
||||
TAILQ_INIT(&$$);
|
||||
if (ps->scope == NULL || ps->scope->flag)
|
||||
TAILQ_CONCAT(&$$, &$1, entry);
|
||||
else
|
||||
cmd_parse_free_commands(&$1);
|
||||
$$ = $1;
|
||||
else {
|
||||
$$ = cmd_parse_new_commands();
|
||||
cmd_parse_free_commands($1);
|
||||
}
|
||||
}
|
||||
| assignment
|
||||
{
|
||||
TAILQ_INIT(&$$);
|
||||
$$ = xmalloc (sizeof *$$);
|
||||
TAILQ_INIT($$);
|
||||
}
|
||||
| commands
|
||||
{
|
||||
struct cmd_parse_state *ps = &parse_state;
|
||||
|
||||
TAILQ_INIT(&$$);
|
||||
if (ps->scope == NULL || ps->scope->flag)
|
||||
TAILQ_CONCAT(&$$, &$1, entry);
|
||||
else
|
||||
cmd_parse_free_commands(&$1);
|
||||
$$ = $1;
|
||||
else {
|
||||
$$ = cmd_parse_new_commands();
|
||||
cmd_parse_free_commands($1);
|
||||
}
|
||||
}
|
||||
|
||||
expanded : FORMAT
|
||||
@ -242,117 +244,119 @@ if_close : ENDIF
|
||||
|
||||
condition : if_open '\n' statements if_close
|
||||
{
|
||||
TAILQ_INIT(&$$);
|
||||
if ($1)
|
||||
TAILQ_CONCAT(&$$, &$3, entry);
|
||||
else
|
||||
cmd_parse_free_commands(&$3);
|
||||
$$ = $3;
|
||||
else {
|
||||
$$ = cmd_parse_new_commands();
|
||||
cmd_parse_free_commands($3);
|
||||
}
|
||||
}
|
||||
| if_open '\n' statements if_else '\n' statements if_close
|
||||
{
|
||||
TAILQ_INIT(&$$);
|
||||
if ($1) {
|
||||
TAILQ_CONCAT(&$$, &$3, entry);
|
||||
cmd_parse_free_commands(&$6);
|
||||
$$ = $3;
|
||||
cmd_parse_free_commands($6);
|
||||
} else {
|
||||
TAILQ_CONCAT(&$$, &$6, entry);
|
||||
cmd_parse_free_commands(&$3);
|
||||
$$ = $6;
|
||||
cmd_parse_free_commands($3);
|
||||
}
|
||||
}
|
||||
| if_open '\n' statements elif if_close
|
||||
{
|
||||
TAILQ_INIT(&$$);
|
||||
if ($1) {
|
||||
TAILQ_CONCAT(&$$, &$3, entry);
|
||||
cmd_parse_free_commands(&$4.commands);
|
||||
$$ = $3;
|
||||
cmd_parse_free_commands($4.commands);
|
||||
} else if ($4.flag) {
|
||||
TAILQ_CONCAT(&$$, &$4.commands, entry);
|
||||
cmd_parse_free_commands(&$3);
|
||||
$$ = $4.commands;
|
||||
cmd_parse_free_commands($3);
|
||||
} else {
|
||||
cmd_parse_free_commands(&$3);
|
||||
cmd_parse_free_commands(&$4.commands);
|
||||
$$ = cmd_parse_new_commands();
|
||||
cmd_parse_free_commands($3);
|
||||
cmd_parse_free_commands($4.commands);
|
||||
}
|
||||
}
|
||||
| if_open '\n' statements elif if_else '\n' statements if_close
|
||||
{
|
||||
TAILQ_INIT(&$$);
|
||||
if ($1) {
|
||||
TAILQ_CONCAT(&$$, &$3, entry);
|
||||
cmd_parse_free_commands(&$4.commands);
|
||||
cmd_parse_free_commands(&$7);
|
||||
$$ = $3;
|
||||
cmd_parse_free_commands($4.commands);
|
||||
cmd_parse_free_commands($7);
|
||||
} else if ($4.flag) {
|
||||
TAILQ_CONCAT(&$$, &$4.commands, entry);
|
||||
cmd_parse_free_commands(&$3);
|
||||
cmd_parse_free_commands(&$7);
|
||||
$$ = $4.commands;
|
||||
cmd_parse_free_commands($3);
|
||||
cmd_parse_free_commands($7);
|
||||
} else {
|
||||
TAILQ_CONCAT(&$$, &$7, entry);
|
||||
cmd_parse_free_commands(&$3);
|
||||
cmd_parse_free_commands(&$4.commands);
|
||||
$$ = $7;
|
||||
cmd_parse_free_commands($3);
|
||||
cmd_parse_free_commands($4.commands);
|
||||
}
|
||||
}
|
||||
|
||||
elif : if_elif '\n' statements
|
||||
{
|
||||
TAILQ_INIT(&$$.commands);
|
||||
if ($1)
|
||||
TAILQ_CONCAT(&$$.commands, &$3, entry);
|
||||
else
|
||||
cmd_parse_free_commands(&$3);
|
||||
$$.flag = $1;
|
||||
if ($1) {
|
||||
$$.flag = 1;
|
||||
$$.commands = $3;
|
||||
} else {
|
||||
$$.flag = 0;
|
||||
$$.commands = cmd_parse_new_commands();
|
||||
cmd_parse_free_commands($3);
|
||||
}
|
||||
}
|
||||
| if_elif '\n' statements elif
|
||||
{
|
||||
TAILQ_INIT(&$$.commands);
|
||||
if ($1) {
|
||||
$$.flag = 1;
|
||||
TAILQ_CONCAT(&$$.commands, &$3, entry);
|
||||
cmd_parse_free_commands(&$4.commands);
|
||||
$$.commands = $3;
|
||||
cmd_parse_free_commands($4.commands);
|
||||
} else if ($4.flag) {
|
||||
$$.flag = 1;
|
||||
$$.commands = $4.commands;
|
||||
cmd_parse_free_commands($3);
|
||||
} else {
|
||||
$$.flag = $4.flag;
|
||||
TAILQ_CONCAT(&$$.commands, &$4.commands, entry);
|
||||
cmd_parse_free_commands(&$3);
|
||||
$$.flag = 0;
|
||||
$$.commands = cmd_parse_new_commands();
|
||||
cmd_parse_free_commands($3);
|
||||
cmd_parse_free_commands($4.commands);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
commands : command
|
||||
{
|
||||
struct cmd_parse_state *ps = &parse_state;
|
||||
|
||||
TAILQ_INIT(&$$);
|
||||
$$ = cmd_parse_new_commands();
|
||||
if (ps->scope == NULL || ps->scope->flag)
|
||||
TAILQ_INSERT_TAIL(&$$, $1, entry);
|
||||
TAILQ_INSERT_TAIL($$, $1, entry);
|
||||
else
|
||||
cmd_parse_free_command($1);
|
||||
}
|
||||
| commands ';'
|
||||
{
|
||||
TAILQ_INIT(&$$);
|
||||
TAILQ_CONCAT(&$$, &$1, entry);
|
||||
$$ = $1;
|
||||
}
|
||||
| commands ';' condition1
|
||||
{
|
||||
TAILQ_INIT(&$$);
|
||||
TAILQ_CONCAT(&$$, &$1, entry);
|
||||
TAILQ_CONCAT(&$$, &$3, entry);
|
||||
$$ = $1;
|
||||
TAILQ_CONCAT($$, $3, entry);
|
||||
free($3);
|
||||
}
|
||||
| commands ';' command
|
||||
{
|
||||
struct cmd_parse_state *ps = &parse_state;
|
||||
|
||||
TAILQ_INIT(&$$);
|
||||
if (ps->scope == NULL || ps->scope->flag) {
|
||||
TAILQ_CONCAT(&$$, &$1, entry);
|
||||
TAILQ_INSERT_TAIL(&$$, $3, entry);
|
||||
$$ = $1;
|
||||
TAILQ_INSERT_TAIL($$, $3, entry);
|
||||
} else {
|
||||
cmd_parse_free_commands(&$1);
|
||||
$$ = cmd_parse_new_commands();
|
||||
cmd_parse_free_commands($1);
|
||||
cmd_parse_free_command($3);
|
||||
}
|
||||
}
|
||||
| condition1
|
||||
{
|
||||
TAILQ_INIT(&$$);
|
||||
TAILQ_CONCAT(&$$, &$1, entry);
|
||||
$$ = $1;
|
||||
}
|
||||
|
||||
command : assignment TOKEN
|
||||
@ -378,76 +382,80 @@ command : assignment TOKEN
|
||||
|
||||
condition1 : if_open commands if_close
|
||||
{
|
||||
TAILQ_INIT(&$$);
|
||||
if ($1)
|
||||
TAILQ_CONCAT(&$$, &$2, entry);
|
||||
else
|
||||
cmd_parse_free_commands(&$2);
|
||||
$$ = $2;
|
||||
else {
|
||||
$$ = cmd_parse_new_commands();
|
||||
cmd_parse_free_commands($2);
|
||||
}
|
||||
}
|
||||
| if_open commands if_else commands if_close
|
||||
{
|
||||
TAILQ_INIT(&$$);
|
||||
if ($1) {
|
||||
TAILQ_CONCAT(&$$, &$2, entry);
|
||||
cmd_parse_free_commands(&$4);
|
||||
$$ = $2;
|
||||
cmd_parse_free_commands($4);
|
||||
} else {
|
||||
TAILQ_CONCAT(&$$, &$4, entry);
|
||||
cmd_parse_free_commands(&$2);
|
||||
$$ = $4;
|
||||
cmd_parse_free_commands($2);
|
||||
}
|
||||
}
|
||||
| if_open commands elif1 if_close
|
||||
{
|
||||
TAILQ_INIT(&$$);
|
||||
if ($1) {
|
||||
TAILQ_CONCAT(&$$, &$2, entry);
|
||||
cmd_parse_free_commands(&$3.commands);
|
||||
$$ = $2;
|
||||
cmd_parse_free_commands($3.commands);
|
||||
} else if ($3.flag) {
|
||||
TAILQ_CONCAT(&$$, &$3.commands, entry);
|
||||
cmd_parse_free_commands(&$2);
|
||||
$$ = $3.commands;
|
||||
cmd_parse_free_commands($2);
|
||||
} else {
|
||||
cmd_parse_free_commands(&$2);
|
||||
cmd_parse_free_commands(&$3.commands);
|
||||
$$ = cmd_parse_new_commands();
|
||||
cmd_parse_free_commands($2);
|
||||
cmd_parse_free_commands($3.commands);
|
||||
}
|
||||
}
|
||||
| if_open commands elif1 if_else commands if_close
|
||||
{
|
||||
TAILQ_INIT(&$$);
|
||||
if ($1) {
|
||||
TAILQ_CONCAT(&$$, &$2, entry);
|
||||
cmd_parse_free_commands(&$3.commands);
|
||||
cmd_parse_free_commands(&$5);
|
||||
$$ = $2;
|
||||
cmd_parse_free_commands($3.commands);
|
||||
cmd_parse_free_commands($5);
|
||||
} else if ($3.flag) {
|
||||
TAILQ_CONCAT(&$$, &$3.commands, entry);
|
||||
cmd_parse_free_commands(&$2);
|
||||
cmd_parse_free_commands(&$5);
|
||||
$$ = $3.commands;
|
||||
cmd_parse_free_commands($2);
|
||||
cmd_parse_free_commands($5);
|
||||
} else {
|
||||
TAILQ_CONCAT(&$$, &$5, entry);
|
||||
cmd_parse_free_commands(&$2);
|
||||
cmd_parse_free_commands(&$3.commands);
|
||||
$$ = $5;
|
||||
cmd_parse_free_commands($2);
|
||||
cmd_parse_free_commands($3.commands);
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
elif1 : if_elif commands
|
||||
{
|
||||
TAILQ_INIT(&$$.commands);
|
||||
if ($1)
|
||||
TAILQ_CONCAT(&$$.commands, &$2, entry);
|
||||
else
|
||||
cmd_parse_free_commands(&$2);
|
||||
$$.flag = $1;
|
||||
if ($1) {
|
||||
$$.flag = 1;
|
||||
$$.commands = $2;
|
||||
} else {
|
||||
$$.flag = 0;
|
||||
$$.commands = cmd_parse_new_commands();
|
||||
cmd_parse_free_commands($2);
|
||||
}
|
||||
}
|
||||
| if_elif commands elif1
|
||||
{
|
||||
TAILQ_INIT(&$$.commands);
|
||||
if ($1) {
|
||||
$$.flag = 1;
|
||||
TAILQ_CONCAT(&$$.commands, &$2, entry);
|
||||
cmd_parse_free_commands(&$3.commands);
|
||||
$$.commands = $2;
|
||||
cmd_parse_free_commands($3.commands);
|
||||
} else if ($3.flag) {
|
||||
$$.flag = 1;
|
||||
$$.commands = $3.commands;
|
||||
cmd_parse_free_commands($2);
|
||||
} else {
|
||||
$$.flag = $3.flag;
|
||||
TAILQ_CONCAT(&$$.commands, &$3.commands, entry);
|
||||
cmd_parse_free_commands(&$2);
|
||||
$$.flag = 0;
|
||||
$$.commands = cmd_parse_new_commands();
|
||||
cmd_parse_free_commands($2);
|
||||
cmd_parse_free_commands($3.commands);
|
||||
}
|
||||
}
|
||||
|
||||
@ -496,6 +504,16 @@ cmd_parse_free_command(struct cmd_parse_command *cmd)
|
||||
free(cmd);
|
||||
}
|
||||
|
||||
static struct cmd_parse_commands *
|
||||
cmd_parse_new_commands(void)
|
||||
{
|
||||
struct cmd_parse_commands *cmds;
|
||||
|
||||
cmds = xmalloc(sizeof *cmds);
|
||||
TAILQ_INIT (cmds);
|
||||
return (cmds);
|
||||
}
|
||||
|
||||
static void
|
||||
cmd_parse_free_commands(struct cmd_parse_commands *cmds)
|
||||
{
|
||||
@ -505,17 +523,17 @@ cmd_parse_free_commands(struct cmd_parse_commands *cmds)
|
||||
TAILQ_REMOVE(cmds, cmd, entry);
|
||||
cmd_parse_free_command(cmd);
|
||||
}
|
||||
free(cmds);
|
||||
}
|
||||
|
||||
static struct cmd_parse_commands *
|
||||
cmd_parse_run_parser(char **cause)
|
||||
{
|
||||
struct cmd_parse_state *ps = &parse_state;
|
||||
struct cmd_parse_commands *cmds;
|
||||
struct cmd_parse_scope *scope, *scope1;
|
||||
int retval;
|
||||
|
||||
TAILQ_INIT(&ps->commands);
|
||||
ps->commands = NULL;
|
||||
TAILQ_INIT(&ps->stack);
|
||||
|
||||
retval = yyparse();
|
||||
@ -528,10 +546,9 @@ cmd_parse_run_parser(char **cause)
|
||||
return (NULL);
|
||||
}
|
||||
|
||||
cmds = xmalloc(sizeof *cmds);
|
||||
TAILQ_INIT(cmds);
|
||||
TAILQ_CONCAT(cmds, &ps->commands, entry);
|
||||
return (cmds);
|
||||
if (ps->commands == NULL)
|
||||
return (cmd_parse_new_commands());
|
||||
return (ps->commands);
|
||||
}
|
||||
|
||||
static struct cmd_parse_commands *
|
||||
@ -573,7 +590,7 @@ cmd_parse_build_commands(struct cmd_parse_commands *cmds,
|
||||
|
||||
/* Check for an empty list. */
|
||||
if (TAILQ_EMPTY(cmds)) {
|
||||
free(cmds);
|
||||
cmd_parse_free_commands(cmds);
|
||||
pr.status = CMD_PARSE_EMPTY;
|
||||
return (&pr);
|
||||
}
|
||||
@ -667,7 +684,6 @@ cmd_parse_build_commands(struct cmd_parse_commands *cmds,
|
||||
|
||||
out:
|
||||
cmd_parse_free_commands(cmds);
|
||||
free(cmds);
|
||||
|
||||
return (&pr);
|
||||
}
|
||||
@ -746,8 +762,7 @@ cmd_parse_from_arguments(int argc, char **argv, struct cmd_parse_input *pi)
|
||||
}
|
||||
cmd_log_argv(argc, argv, "%s", __func__);
|
||||
|
||||
cmds = xmalloc(sizeof *cmds);
|
||||
TAILQ_INIT(cmds);
|
||||
cmds = cmd_parse_new_commands();
|
||||
copy = cmd_copy_argv(argc, argv);
|
||||
|
||||
last = 0;
|
||||
@ -800,6 +815,8 @@ cmd_parse_from_arguments(int argc, char **argv, struct cmd_parse_input *pi)
|
||||
TAILQ_INSERT_TAIL(cmds, cmd, entry);
|
||||
}
|
||||
}
|
||||
|
||||
cmd_free_argv(argc, copy);
|
||||
return (cmd_parse_build_commands(cmds, pi));
|
||||
}
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user