void
cmd_if_shell_callback(struct job *job)
{
struct cmd_if_shell_data *cdata = job->data;
struct cmd_ctx *ctx = &cdata->ctx;
struct cmd_list *cmdlist;
char *cause;
if (!WIFEXITED(job->status) || WEXITSTATUS(job->status) != 0)
return;
if (cmd_string_parse(cdata->cmd, &cmdlist, &cause) != 0) {
if (cause != NULL) {
ctx->error(ctx, "%s", cause);
xfree(cause);
}
return;
}
if (cmd_list_exec(cmdlist, ctx) < 0) {
cmd_list_free(cmdlist);
return;
}
cmd_list_free(cmdlist);
}
/* Control input callback. Read lines and fire commands. */
void
control_callback(struct client *c, int closed, __unused void *data)
{
char *line, *cause;
struct cmd_list *cmdlist;
struct cmd *cmd;
struct cmdq_item *item;
if (closed)
c->flags |= CLIENT_EXIT;
for (;;) {
line = evbuffer_readln(c->stdin_data, NULL, EVBUFFER_EOL_LF);
if (line == NULL)
break;
if (*line == '\0') { /* empty line exit */
c->flags |= CLIENT_EXIT;
break;
}
if (cmd_string_parse(line, &cmdlist, NULL, 0, &cause) != 0) {
item = cmdq_get_callback(control_error, cause);
cmdq_append(c, item);
} else {
TAILQ_FOREACH(cmd, &cmdlist->list, qentry)
cmd->flags |= CMD_CONTROL;
item = cmdq_get_command(cmdlist, NULL, NULL, 0);
cmdq_append(c, item);
cmd_list_free(cmdlist);
}
free(line);
}
}
void
cmd_if_shell_callback(struct job *job)
{
struct cmd_if_shell_data *cdata = job->data;
struct cmd_q *cmdq = cdata->cmdq, *cmdq1;
struct cmd_list *cmdlist;
char *cause, *cmd;
if (cmdq->flags & CMD_Q_DEAD)
return;
if (!WIFEXITED(job->status) || WEXITSTATUS(job->status) != 0)
cmd = cdata->cmd_else;
else
cmd = cdata->cmd_if;
if (cmd == NULL)
return;
if (cmd_string_parse(cmd, &cmdlist, NULL, 0, &cause) != 0) {
if (cause != NULL) {
cmdq_error(cmdq, "%s", cause);
free(cause);
}
return;
}
cmdq1 = cmdq_new(cmdq->client);
cmdq1->emptyfn = cmd_if_shell_done;
cmdq1->data = cdata;
cdata->references++;
cmdq_run(cmdq1, cmdlist, &cdata->mouse);
cmd_list_free(cmdlist);
}
int
cmd_confirm_before_callback(void *data, const char *s)
{
struct cmd_confirm_before_data *cdata = data;
struct client *c = cdata->client;
struct cmd_list *cmdlist;
char *cause;
if (c->flags & CLIENT_DEAD)
return (0);
if (s == NULL || *s == '\0')
return (0);
if (tolower((u_char) s[0]) != 'y' || s[1] != '\0')
return (0);
if (cmd_string_parse(cdata->cmd, &cmdlist, NULL, 0, &cause) != 0) {
if (cause != NULL) {
cmdq_error(c->cmdq, "%s", cause);
free(cause);
}
return (0);
}
cmdq_run(c->cmdq, cmdlist);
cmd_list_free(cmdlist);
return (0);
}
int
cmd_unbind_key_exec(struct cmd *self, unused struct cmd_ctx *ctx)
{
struct args *args = self->args;
struct key_binding *bd;
int key;
if (args_has(args, 'a')) {
while (!SPLAY_EMPTY(&key_bindings)) {
bd = SPLAY_ROOT(&key_bindings);
SPLAY_REMOVE(key_bindings, &key_bindings, bd);
cmd_list_free(bd->cmdlist);
xfree(bd);
}
return (0);
}
key = key_string_lookup_string(args->argv[0]);
if (key == KEYC_NONE) {
ctx->error(ctx, "unknown key: %s", args->argv[0]);
return (-1);
}
if (args_has(args, 't'))
return (cmd_unbind_key_table(self, ctx, key));
if (!args_has(args, 'n'))
key |= KEYC_PREFIX;
key_bindings_remove(key);
return (0);
}
static int
cmd_confirm_before_callback(void *data, const char *s, __unused int done)
{
struct cmd_confirm_before_data *cdata = data;
struct client *c = cdata->client;
struct cmd_list *cmdlist;
struct cmdq_item *new_item;
char *cause;
if (c->flags & CLIENT_DEAD)
return (0);
if (s == NULL || *s == '\0')
return (0);
if (tolower((u_char) s[0]) != 'y' || s[1] != '\0')
return (0);
cmdlist = cmd_string_parse(cdata->cmd, NULL, 0, &cause);
if (cmdlist == NULL) {
if (cause != NULL) {
new_item = cmdq_get_callback(cmd_confirm_before_error,
cause);
} else
new_item = NULL;
} else {
new_item = cmdq_get_command(cmdlist, NULL, NULL, 0);
cmd_list_free(cmdlist);
}
if (new_item != NULL)
cmdq_append(c, new_item);
return (0);
}
static void tmate_client_exec_cmd(struct tmate_unpacker *uk)
{
struct cmd_q *cmd_q;
struct cmd_list *cmdlist;
char *cause;
int client_id = unpack_int(uk);
char *cmd_str = unpack_string(uk);
if (cmd_string_parse(cmd_str, &cmdlist, NULL, 0, &cause) != 0) {
tmate_failed_cmd(client_id, cause);
free(cause);
goto out;
}
/* error messages land in cfg_causes */
ARRAY_FREE(&cfg_causes);
cmd_q = cmdq_new(NULL);
cmdq_run(cmd_q, cmdlist);
cmd_list_free(cmdlist);
cmdq_free(cmd_q);
if (!ARRAY_EMPTY(&cfg_causes)) {
cause = ARRAY_ITEM(&cfg_causes, 0);
tmate_failed_cmd(client_id, cause);
free(cause);
ARRAY_FREE(&cfg_causes);
}
out:
free(cmd_str);
}
static void handle_exec_cmd_str(__unused struct tmate_session *session,
struct tmate_unpacker *uk)
{
struct cmd_q *cmd_q;
struct cmd_list *cmdlist;
char *cause;
u_int i;
int client_id = unpack_int(uk);
char *cmd_str = unpack_string(uk);
if (cmd_string_parse(cmd_str, &cmdlist, NULL, 0, &cause) != 0) {
tmate_failed_cmd(client_id, cause);
free(cause);
goto out;
}
cmd_q = cmdq_new(NULL);
cmdq_run(cmd_q, cmdlist, NULL);
cmd_list_free(cmdlist);
cmdq_free(cmd_q);
/* error messages land in cfg_causes */
for (i = 0; i < cfg_ncauses; i++) {
tmate_failed_cmd(client_id, cfg_causes[i]);
free(cfg_causes[i]);
}
free(cfg_causes);
cfg_causes = NULL;
cfg_ncauses = 0;
out:
free(cmd_str);
}
int
cmd_confirm_before_callback(void *data, const char *s)
{
struct cmd_confirm_before_data *cdata = data;
struct client *c = cdata->c;
struct cmd_list *cmdlist;
struct cmd_ctx *ctx;
char *cause;
if (s == NULL || *s == '\0')
return (0);
if (tolower((u_char) s[0]) != 'y' || s[1] != '\0')
return (0);
if (cmd_string_parse(cdata->cmd, &cmdlist, &cause) != 0) {
if (cause != NULL) {
*cause = toupper((u_char) *cause);
status_message_set(c, "%s", cause);
free(cause);
}
return (0);
}
ctx = cmd_get_ctx();
ctx->curclient = c;
ctx->error = key_bindings_error;
ctx->print = key_bindings_print;
ctx->info = key_bindings_info;
cmd_list_exec(cmdlist, ctx);
cmd_list_free(cmdlist);
cmd_free_ctx(ctx);
return (0);
}
void
key_bindings_clean(void)
{
struct key_binding *bd;
while (!SPLAY_EMPTY(&dead_key_bindings)) {
bd = SPLAY_ROOT(&dead_key_bindings);
SPLAY_REMOVE(key_bindings, &dead_key_bindings, bd);
cmd_list_free(bd->cmdlist);
xfree(bd);
}
}
int
load_cfg(const char *path, struct cmd_q *cmdq, int quiet)
{
FILE *f;
char delim[3] = { '\\', '\\', '\0' };
u_int found;
size_t line = 0;
char *buf, *cause1, *p;
struct cmd_list *cmdlist;
log_debug("loading %s", path);
if ((f = fopen(path, "rb")) == NULL) {
if (errno == ENOENT && quiet)
return (0);
cfg_add_cause("%s: %s", path, strerror(errno));
return (-1);
}
found = 0;
while ((buf = fparseln(f, NULL, &line, delim, 0)) != NULL) {
log_debug("%s: %s", path, buf);
/* Skip empty lines. */
p = buf;
while (isspace((u_char) *p))
p++;
if (*p == '\0') {
free(buf);
continue;
}
/* Parse and run the command. */
if (cmd_string_parse(p, &cmdlist, path, line, &cause1) != 0) {
free(buf);
if (cause1 == NULL)
continue;
cfg_add_cause("%s:%zu: %s", path, line, cause1);
free(cause1);
continue;
}
free(buf);
if (cmdlist == NULL)
continue;
cmdq_append(cmdq, cmdlist, NULL);
cmd_list_free(cmdlist);
found++;
}
fclose(f);
return (found);
}
void
cmd_bind_key_free(struct cmd *self)
{
struct cmd_bind_key_data *data = self->data;
if (data->cmdlist != NULL)
cmd_list_free(data->cmdlist);
if (data->tablename != NULL)
xfree(data->tablename);
if (data->modecmd != NULL)
xfree(data->modecmd);
xfree(data);
}
struct cmd_list *
cmd_list_parse(int argc, char **argv, char **cause)
{
struct cmd_list *cmdlist;
struct cmd *cmd;
int i, lastsplit;
size_t arglen, new_argc;
char **new_argv;
cmdlist = xmalloc(sizeof *cmdlist);
TAILQ_INIT(cmdlist);
lastsplit = 0;
for (i = 0; i < argc; i++) {
arglen = strlen(argv[i]);
if (arglen == 0 || argv[i][arglen - 1] != ';')
continue;
argv[i][arglen - 1] = '\0';
if (arglen > 1 && argv[i][arglen - 2] == '\\') {
argv[i][arglen - 2] = ';';
continue;
}
new_argc = i - lastsplit;
new_argv = argv + lastsplit;
if (arglen != 1)
new_argc++;
cmd = cmd_parse(new_argc, new_argv, cause);
if (cmd == NULL)
goto bad;
TAILQ_INSERT_TAIL(cmdlist, cmd, qentry);
lastsplit = i + 1;
}
if (lastsplit != argc) {
cmd = cmd_parse(argc - lastsplit, argv + lastsplit, cause);
if (cmd == NULL)
goto bad;
TAILQ_INSERT_TAIL(cmdlist, cmd, qentry);
}
return (cmdlist);
bad:
cmd_list_free(cmdlist);
return (NULL);
}
static void handle_exec_cmd(__unused struct tmate_session *session,
struct tmate_unpacker *uk)
{
struct cmd_q *cmd_q;
struct cmd_list *cmdlist;
struct cmd *cmd;
char *cause;
u_int i;
unsigned int argc;
char **argv;
int client_id = unpack_int(uk);
argc = uk->argc;
argv = xmalloc(sizeof(char *) * argc);
for (i = 0; i < argc; i++)
argv[i] = unpack_string(uk);
cmd = cmd_parse(argc, argv, NULL, 0, &cause);
if (!cmd) {
tmate_failed_cmd(client_id, cause);
free(cause);
goto out;
}
cmdlist = xcalloc(1, sizeof *cmdlist);
cmdlist->references = 1;
TAILQ_INIT(&cmdlist->list);
TAILQ_INSERT_TAIL(&cmdlist->list, cmd, qentry);
cmd_q = cmdq_new(NULL);
cmdq_run(cmd_q, cmdlist, NULL);
cmd_list_free(cmdlist);
cmdq_free(cmd_q);
/* error messages land in cfg_causes */
for (i = 0; i < cfg_ncauses; i++) {
tmate_failed_cmd(client_id, cfg_causes[i]);
free(cfg_causes[i]);
}
free(cfg_causes);
cfg_causes = NULL;
cfg_ncauses = 0;
out:
cmd_free_argv(argc, argv);
}
/* Control input callback. */
void
control_read_callback(unused struct bufferevent *bufev, void *data)
{
struct client *c = data;
struct bufferevent *out = c->stdout_event;
char *line;
struct cmd_ctx ctx;
struct cmd_list *cmdlist;
char *cause;
/* Read all available input lines. */
line = evbuffer_readln(c->stdin_event->input, NULL, EVBUFFER_EOL_ANY);
while (line) {
/* Parse command. */
ctx.msgdata = NULL;
ctx.cmdclient = NULL;
ctx.curclient = c;
ctx.error = control_msg_error;
ctx.print = control_msg_print;
ctx.info = control_msg_info;
if (cmd_string_parse(line, &cmdlist, &cause) != 0) {
/* Error */
if (cause) {
/* cause should always be set if there's an
* error. */
evbuffer_add_printf(out->output,
"%%error in line \"%s\": %s",
line, cause);
bufferevent_write(out, "\n", 1);
xfree(cause);
}
} else {
/* Parsed ok. Run command. */
cmd_list_exec(cmdlist, &ctx);
cmd_list_free(cmdlist);
}
xfree(line);
/* Read input line. */
line = evbuffer_readln(c->stdin_event->input, NULL,
EVBUFFER_EOL_ANY);
}
}
/* Control input callback. Read lines and fire commands. */
void
control_callback(struct client *c, int closed, unused void *data)
{
char *line, *cause;
struct cmd_ctx ctx;
struct cmd_list *cmdlist;
if (closed)
c->flags |= CLIENT_EXIT;
for (;;) {
line = evbuffer_readln(c->stdin_data, NULL, EVBUFFER_EOL_LF);
if (line == NULL)
break;
if (*line == '\0') { /* empty line exit */
c->flags |= CLIENT_EXIT;
break;
}
ctx.msgdata = NULL;
ctx.cmdclient = NULL;
ctx.curclient = c;
ctx.error = control_msg_error;
ctx.print = control_msg_print;
ctx.info = control_msg_info;
if (cmd_string_parse(line, &cmdlist, &cause) != 0) {
control_write(c, "%%error in line \"%s\": %s", line,
cause);
xfree(cause);
} else {
cmd_list_exec(cmdlist, &ctx);
cmd_list_free(cmdlist);
}
xfree(line);
}
}
static void
cmd_if_shell_callback(struct job *job)
{
struct cmd_if_shell_data *cdata = job->data;
struct client *c = cdata->client;
struct cmd_list *cmdlist;
struct cmdq_item *new_item;
char *cause, *cmd, *file = cdata->file;
u_int line = cdata->line;
if (!WIFEXITED(job->status) || WEXITSTATUS(job->status) != 0)
cmd = cdata->cmd_else;
else
cmd = cdata->cmd_if;
if (cmd == NULL)
goto out;
cmdlist = cmd_string_parse(cmd, file, line, &cause);
if (cmdlist == NULL) {
if (cause != NULL)
new_item = cmdq_get_callback(cmd_if_shell_error, cause);
else
new_item = NULL;
} else {
new_item = cmdq_get_command(cmdlist, NULL, &cdata->mouse, 0);
cmd_list_free(cmdlist);
}
if (new_item != NULL) {
if (cdata->item == NULL)
cmdq_append(c, new_item);
else
cmdq_insert_after(cdata->item, new_item);
}
out:
if (cdata->item != NULL)
cdata->item->flags &= ~CMDQ_WAITING;
}
/* Control input callback. Read lines and fire commands. */
void
control_callback(struct client *c, int closed, unused void *data)
{
char *line, *cause;
struct cmd_list *cmdlist;
struct cmd *cmd;
if (closed)
c->flags |= CLIENT_EXIT;
for (;;) {
line = evbuffer_readln(c->stdin_data, NULL, EVBUFFER_EOL_LF);
if (line == NULL)
break;
if (*line == '\0') { /* empty line exit */
c->flags |= CLIENT_EXIT;
break;
}
if (cmd_string_parse(line, &cmdlist, NULL, 0, &cause) != 0) {
c->cmdq->time = time(NULL);
c->cmdq->number++;
cmdq_guard(c->cmdq, "begin", 1);
control_write(c, "parse error: %s", cause);
cmdq_guard(c->cmdq, "error", 1);
free(cause);
} else {
TAILQ_FOREACH(cmd, &cmdlist->list, qentry)
cmd->flags |= CMD_CONTROL;
cmdq_run(c->cmdq, cmdlist);
cmd_list_free(cmdlist);
}
free(line);
}
}
int
cmd_unbind_key_exec(struct cmd *self, unused struct cmd_ctx *ctx)
{
struct cmd_unbind_key_data *data = self->data;
struct key_binding *bd;
if (data == NULL)
return (0);
if (data->flag_all) {
while (!SPLAY_EMPTY(&key_bindings)) {
bd = SPLAY_ROOT(&key_bindings);
SPLAY_REMOVE(key_bindings, &key_bindings, bd);
cmd_list_free(bd->cmdlist);
xfree(bd);
}
} else {
if (data->tablename != NULL)
return (cmd_unbind_key_table(self, ctx));
key_bindings_remove(data->key);
}
return (0);
}
int
main(int argc, char **argv)
{
struct client_ctx cctx;
struct msg_command_data cmddata;
struct buffer *b;
struct cmd_list *cmdlist;
struct cmd *cmd;
struct pollfd pfd;
struct hdr hdr;
const char *shell;
struct passwd *pw;
char *path, *label, *cause, *home, *pass = NULL;
char cwd[MAXPATHLEN];
int retcode, opt, flags, unlock, start_server;
unlock = flags = 0;
label = path = NULL;
while ((opt = getopt(argc, argv, "28df:L:qS:uUVv")) != -1) {
switch (opt) {
case '2':
flags |= IDENTIFY_256COLOURS;
flags &= ~IDENTIFY_88COLOURS;
break;
case '8':
flags |= IDENTIFY_88COLOURS;
flags &= ~IDENTIFY_256COLOURS;
break;
case 'f':
cfg_file = xstrdup(optarg);
break;
case 'L':
if (path != NULL) {
log_warnx("-L and -S cannot be used together");
exit(1);
}
if (label != NULL)
xfree(label);
label = xstrdup(optarg);
break;
case 'S':
if (label != NULL) {
log_warnx("-L and -S cannot be used together");
exit(1);
}
if (path != NULL)
xfree(path);
path = xstrdup(optarg);
break;
case 'q':
be_quiet = 1;
break;
case 'u':
flags |= IDENTIFY_UTF8;
break;
case 'U':
unlock = 1;
break;
case 'd':
flags |= IDENTIFY_HASDEFAULTS;
break;
case 'v':
debug_level++;
break;
case 'V':
printf("%s " BUILD "\n", __progname);
exit(0);
default:
usage();
}
}
argc -= optind;
argv += optind;
log_open_tty(debug_level);
siginit();
options_init(&global_options, NULL);
options_set_number(&global_options, "bell-action", BELL_ANY);
options_set_number(&global_options, "buffer-limit", 9);
options_set_number(&global_options, "display-time", 750);
options_set_number(&global_options, "history-limit", 2000);
options_set_number(&global_options, "message-bg", 3);
options_set_number(&global_options, "message-fg", 0);
options_set_number(&global_options, "message-attr", GRID_ATTR_REVERSE);
options_set_number(&global_options, "prefix", META);
options_set_number(&global_options, "repeat-time", 500);
options_set_number(&global_options, "set-titles", 1);
options_set_number(&global_options, "lock-after-time", 0);
options_set_number(&global_options, "set-remain-on-exit", 0);
options_set_number(&global_options, "status", 1);
options_set_number(&global_options, "status-bg", 2);
options_set_number(&global_options, "status-fg", 0);
options_set_number(&global_options, "status-attr", GRID_ATTR_REVERSE);
options_set_number(&global_options, "status-interval", 15);
options_set_number(&global_options, "status-left-length", 10);
options_set_number(&global_options, "status-right-length", 40);
options_set_string(&global_options, "status-left", "[#S]");
options_set_string(
&global_options, "status-right", "\"#24T\" %%H:%%M %%d-%%b-%%y");
options_set_number(&global_options, "status-keys", MODEKEY_EMACS);
options_init(&global_window_options, NULL);
options_set_number(&global_window_options, "aggressive-resize", 0);
options_set_number(&global_window_options, "clock-mode-colour", 4);
options_set_number(&global_window_options, "clock-mode-style", 1);
options_set_number(&global_window_options, "force-height", 0);
options_set_number(&global_window_options, "force-width", 0);
options_set_number(&global_window_options, "automatic-rename", 1);
options_set_number(&global_window_options, "mode-bg", 3);
options_set_number(&global_window_options, "mode-fg", 0);
options_set_number(
&global_window_options, "mode-attr", GRID_ATTR_REVERSE);
options_set_number(&global_window_options, "mode-keys", MODEKEY_EMACS);
options_set_number(&global_window_options, "monitor-activity", 0);
options_set_number(&global_window_options, "utf8", 0);
options_set_number(&global_window_options, "xterm-keys", 0);
options_set_number(&global_window_options, "remain-on-exit", 0);
options_set_number(&global_window_options, "window-status-bg", 8);
options_set_number(&global_window_options, "window-status-fg", 8);
options_set_number(&global_window_options, "window-status-attr", 0);
if (cfg_file == NULL) {
home = getenv("HOME");
if (home == NULL || *home == '\0') {
pw = getpwuid(getuid());
if (pw != NULL)
home = pw->pw_dir;
endpwent();
}
xasprintf(&cfg_file, "%s/%s", home, DEFAULT_CFG);
if (access(cfg_file, R_OK) != 0) {
xfree(cfg_file);
cfg_file = NULL;
}
} else {
if (access(cfg_file, R_OK) != 0) {
log_warn("%s", cfg_file);
exit(1);
}
}
if (label == NULL)
label = xstrdup("default");
if (path == NULL && (path = makesockpath(label)) == NULL) {
log_warn("can't create socket");
exit(1);
}
xfree(label);
shell = getenv("SHELL");
if (shell == NULL || *shell == '\0') {
pw = getpwuid(getuid());
if (pw != NULL)
shell = pw->pw_shell;
endpwent();
if (shell == NULL || *shell == '\0')
shell = _PATH_BSHELL;
}
options_set_string(
&global_options, "default-command", "exec %s", shell);
if (getcwd(cwd, sizeof cwd) == NULL) {
log_warn("getcwd");
exit(1);
}
options_set_string(&global_options, "default-path", "%s", cwd);
if (unlock) {
if (argc != 0) {
log_warnx("can't specify a command when unlocking");
exit(1);
}
cmdlist = NULL;
if ((pass = getpass("Password: "******"%s", cause);
exit(1);
}
}
start_server = 0;
TAILQ_FOREACH(cmd, cmdlist, qentry) {
if (cmd->entry->flags & CMD_STARTSERVER) {
start_server = 1;
break;
}
}
}
memset(&cctx, 0, sizeof cctx);
if (client_init(path, &cctx, start_server, flags) != 0)
exit(1);
xfree(path);
b = buffer_create(BUFSIZ);
if (unlock) {
cmd_send_string(b, pass);
client_write_server(
&cctx, MSG_UNLOCK, BUFFER_OUT(b), BUFFER_USED(b));
} else {
cmd_list_send(cmdlist, b);
cmd_list_free(cmdlist);
client_fill_session(&cmddata);
client_write_server2(&cctx, MSG_COMMAND,
&cmddata, sizeof cmddata, BUFFER_OUT(b), BUFFER_USED(b));
}
buffer_destroy(b);
retcode = 0;
for (;;) {
pfd.fd = cctx.srv_fd;
pfd.events = POLLIN;
if (BUFFER_USED(cctx.srv_out) > 0)
pfd.events |= POLLOUT;
if (poll(&pfd, 1, INFTIM) == -1) {
if (errno == EAGAIN || errno == EINTR)
continue;
fatal("poll failed");
}
if (buffer_poll(&pfd, cctx.srv_in, cctx.srv_out) != 0)
goto out;
restart:
if (BUFFER_USED(cctx.srv_in) < sizeof hdr)
continue;
memcpy(&hdr, BUFFER_OUT(cctx.srv_in), sizeof hdr);
if (BUFFER_USED(cctx.srv_in) < (sizeof hdr) + hdr.size)
continue;
buffer_remove(cctx.srv_in, sizeof hdr);
switch (hdr.type) {
case MSG_EXIT:
case MSG_SHUTDOWN:
goto out;
case MSG_ERROR:
retcode = 1;
/* FALLTHROUGH */
case MSG_PRINT:
if (hdr.size > INT_MAX - 1)
fatalx("bad MSG_PRINT size");
log_info("%.*s",
(int) hdr.size, BUFFER_OUT(cctx.srv_in));
if (hdr.size != 0)
buffer_remove(cctx.srv_in, hdr.size);
goto restart;
case MSG_READY:
retcode = client_main(&cctx);
goto out;
default:
fatalx("unexpected command");
}
}
out:
options_free(&global_options);
options_free(&global_window_options);
close(cctx.srv_fd);
buffer_destroy(cctx.srv_in);
buffer_destroy(cctx.srv_out);
#ifdef DEBUG
xmalloc_report(getpid(), "client");
#endif
return (retcode);
}
/* The following function deletes the value associated with a
** symbol. The symbol can be either a terminal or nonterminal.
** "yymajor" is the symbol code, and "yypminor" is a pointer to
** the value.
*/
static void yy_destructor(
yyParser *yypParser, /* The parser */
YYCODETYPE yymajor, /* Type code for object to destroy */
YYMINORTYPE *yypminor /* The object to be destroyed */
){
LineParserARG_FETCH;
switch( yymajor ){
/* Here is inserted the actions which take place when a
** terminal or non-terminal is destroyed. This can happen
** when the symbol is popped from the stack during a
** reduce or during error processing or when a parser is
** being destroyed before it is finished parsing.
**
** Note: during a reduce, the only symbols destroyed are those
** which appear on the RHS of the rule, but which are not used
** inside the C code.
*/
/* TERMINAL Destructor */
case 1: /* REDIRECT_INPUT_FROM_FILE */
case 2: /* ARGUMENT */
case 3: /* REDIRECT_INPUT_FROM_FILE_DESCRIPTOR */
case 4: /* REDIRECT_OUTPUT_TO_FILE */
case 5: /* REDIRECT_OUTPUT_TO_FILE_DESCRIPTOR */
case 6: /* REDIRECT_OUTPUT_APPEND_TO_FILE */
case 7: /* PIPE */
case 8: /* OR */
case 9: /* AND */
case 10: /* BACKGROUND */
case 11: /* SEMICOLON */
{
#line 24 "line_parser.y"
free((yypminor->yy0));
#line 416 "line_parser.c"
}
break;
case 13: /* redirection */
{
#line 29 "line_parser.y"
redir_free((yypminor->yy4));
#line 425 "line_parser.c"
}
break;
case 14: /* command */
{
#line 33 "line_parser.y"
cmd_free((yypminor->yy2));
#line 434 "line_parser.c"
}
break;
case 15: /* commandList */
{
#line 37 "line_parser.y"
cmd_list_free((yypminor->yy13));
#line 443 "line_parser.c"
}
break;
case 16: /* start */
{
#line 41 "line_parser.y"
#line 450 "line_parser.c"
}
break;
default: break; /* If no destructor action specified: do nothing */
}
}
/*
* Load configuration file. Returns -1 for an error with a list of messages in
* causes. Note that causes must be initialised by the caller!
*/
enum cmd_retval
load_cfg(const char *path, struct cmd_ctx *ctx, struct causelist *causes)
{
FILE *f;
u_int n;
char *buf, *copy, *line, *cause;
size_t len, oldlen;
struct cmd_list *cmdlist;
enum cmd_retval retval;
if ((f = fopen(path, "rb")) == NULL) {
cfg_add_cause(causes, "%s: %s", path, strerror(errno));
return (CMD_RETURN_ERROR);
}
cfg_references++;
if (ctx != NULL)
cmd_ref_ctx(ctx);
else {
ctx = cmd_get_ctx();
ctx->error = cfg_error;
ctx->print = cfg_print;
ctx->info = cfg_print;
}
n = 0;
line = NULL;
retval = CMD_RETURN_NORMAL;
while ((buf = fgetln(f, &len))) {
/* Trim \n. */
if (buf[len - 1] == '\n')
len--;
log_debug("%s: %.*s", path, (int)len, buf);
/* Current line is the continuation of the previous one. */
if (line != NULL) {
oldlen = strlen(line);
line = xrealloc(line, 1, oldlen + len + 1);
} else {
oldlen = 0;
line = xmalloc(len + 1);
}
/* Append current line to the previous. */
memcpy(line + oldlen, buf, len);
line[oldlen + len] = '\0';
n++;
/* Continuation: get next line? */
len = strlen(line);
if (len > 0 && line[len - 1] == '\\') {
line[len - 1] = '\0';
/* Ignore escaped backslash at EOL. */
if (len > 1 && line[len - 2] != '\\')
continue;
}
copy = line;
line = NULL;
/* Skip empty lines. */
buf = copy;
while (isspace((u_char)*buf))
buf++;
if (*buf == '\0') {
free(copy);
continue;
}
if (cmd_string_parse(buf, &cmdlist, &cause) != 0) {
free(copy);
if (cause == NULL)
continue;
cfg_add_cause(causes, "%s: %u: %s", path, n, cause);
free(cause);
continue;
}
free(copy);
if (cmdlist == NULL)
continue;
cfg_cause = NULL;
switch (cmd_list_exec(cmdlist, ctx)) {
case CMD_RETURN_YIELD:
if (retval != CMD_RETURN_ATTACH)
retval = CMD_RETURN_YIELD;
break;
case CMD_RETURN_ATTACH:
retval = CMD_RETURN_ATTACH;
break;
case CMD_RETURN_ERROR:
case CMD_RETURN_NORMAL:
break;
}
cmd_list_free(cmdlist);
if (cfg_cause != NULL) {
cfg_add_cause(causes, "%s: %d: %s", path, n, cfg_cause);
free(cfg_cause);
}
}
if (line != NULL) {
cfg_add_cause(causes,
"%s: %d: line continuation at end of file", path, n);
free(line);
}
fclose(f);
cmd_free_ctx(ctx);
cfg_references--;
return (retval);
}
static enum cmd_retval
cmd_set_hook_exec(struct cmd *self, struct cmdq_item *item)
{
struct args *args = self->args;
struct cmd_list *cmdlist;
struct hooks *hooks;
struct hook *hook;
char *cause, *tmp;
const char *name, *cmd, *target;
if (args_has(args, 'g'))
hooks = global_hooks;
else {
if (item->state.tflag.s == NULL) {
target = args_get(args, 't');
if (target != NULL)
cmdq_error(item, "no such session: %s", target);
else
cmdq_error(item, "no current session");
return (CMD_RETURN_ERROR);
}
hooks = item->state.tflag.s->hooks;
}
if (self->entry == &cmd_show_hooks_entry) {
hook = hooks_first(hooks);
while (hook != NULL) {
tmp = cmd_list_print(hook->cmdlist);
cmdq_print(item, "%s -> %s", hook->name, tmp);
free(tmp);
hook = hooks_next(hook);
}
return (CMD_RETURN_NORMAL);
}
name = args->argv[0];
if (*name == '\0') {
cmdq_error(item, "invalid hook name");
return (CMD_RETURN_ERROR);
}
if (args->argc < 2)
cmd = NULL;
else
cmd = args->argv[1];
if (args_has(args, 'u')) {
if (cmd != NULL) {
cmdq_error(item, "command passed to unset hook: %s",
name);
return (CMD_RETURN_ERROR);
}
hooks_remove(hooks, name);
return (CMD_RETURN_NORMAL);
}
if (cmd == NULL) {
cmdq_error(item, "no command to set hook: %s", name);
return (CMD_RETURN_ERROR);
}
if (cmd_string_parse(cmd, &cmdlist, NULL, 0, &cause) != 0) {
if (cause != NULL) {
cmdq_error(item, "%s", cause);
free(cause);
}
return (CMD_RETURN_ERROR);
}
hooks_add(hooks, name, cmdlist);
cmd_list_free(cmdlist);
return (CMD_RETURN_NORMAL);
}
/*
* Load configuration file. Returns -1 for an error with a list of messages in
* causes. Note that causes must be initialised by the caller!
*/
int
load_cfg(const char *path, struct cmd_ctx *ctxin, struct causelist *causes)
{
FILE *f;
u_int n;
char *buf, *line, *cause;
size_t len;
struct cmd_list *cmdlist;
struct cmd_ctx ctx;
int retval;
if ((f = fopen(path, "rb")) == NULL) {
cfg_add_cause(causes, "%s: %s", path, strerror(errno));
return (-1);
}
n = 0;
line = NULL;
retval = 0;
while ((buf = fgetln(f, &len))) {
if (buf[len - 1] == '\n')
buf[len - 1] = '\0';
else {
line = xrealloc(line, 1, len + 1);
memcpy(line, buf, len);
line[len] = '\0';
buf = line;
}
n++;
if (cmd_string_parse(buf, &cmdlist, &cause) != 0) {
if (cause == NULL)
continue;
cfg_add_cause(causes, "%s: %u: %s", path, n, cause);
xfree(cause);
continue;
}
if (cmdlist == NULL)
continue;
cfg_cause = NULL;
if (ctxin == NULL) {
ctx.msgdata = NULL;
ctx.curclient = NULL;
ctx.cmdclient = NULL;
} else {
ctx.msgdata = ctxin->msgdata;
ctx.curclient = ctxin->curclient;
ctx.cmdclient = ctxin->cmdclient;
}
ctx.error = cfg_error;
ctx.print = cfg_print;
ctx.info = cfg_print;
cfg_cause = NULL;
if (cmd_list_exec(cmdlist, &ctx) == 1)
retval = 1;
cmd_list_free(cmdlist);
if (cfg_cause != NULL) {
cfg_add_cause(causes, "%s: %d: %s", path, n, cfg_cause);
xfree(cfg_cause);
}
}
if (line != NULL)
xfree(line);
fclose(f);
return (retval);
}
int
load_cfg(const char *path, char **cause)
{
FILE *f;
u_int n;
struct stat sb;
char *buf, *line, *ptr;
size_t len;
struct cmd_list *cmdlist;
struct cmd_ctx ctx;
if (stat(path, &sb) != 0) {
xasprintf(cause, "%s: %s", path, strerror(errno));
return (-1);
}
if (!S_ISREG(sb.st_mode)) {
xasprintf(cause, "%s: not a regular file", path);
return (-1);
}
if ((f = fopen(path, "rb")) == NULL) {
xasprintf(cause, "%s: %s", path, strerror(errno));
return (1);
}
n = 0;
line = NULL;
while ((buf = fgetln(f, &len))) {
if (buf[len - 1] == '\n')
buf[len - 1] = '\0';
else {
line = xrealloc(line, 1, len + 1);
memcpy(line, buf, len);
line[len] = '\0';
buf = line;
}
n++;
if (cmd_string_parse(buf, &cmdlist, cause) != 0) {
if (*cause == NULL)
continue;
goto error;
}
if (cmdlist == NULL)
continue;
cfg_cause = NULL;
ctx.msgdata = NULL;
ctx.cursession = NULL;
ctx.curclient = NULL;
ctx.error = cfg_error;
ctx.print = cfg_print;
ctx.info = cfg_print;
ctx.cmdclient = NULL;
cfg_cause = NULL;
cmd_list_exec(cmdlist, &ctx);
cmd_list_free(cmdlist);
if (cfg_cause != NULL) {
*cause = cfg_cause;
goto error;
}
}
if (line != NULL)
xfree(line);
fclose(f);
return (0);
error:
fclose(f);
xasprintf(&ptr, "%s: %s at line %u", path, *cause, n);
xfree(*cause);
*cause = ptr;
return (1);
}
int
load_cfg(const char *path, struct cmd_q *cmdq, char **cause)
{
FILE *f;
u_int n, found;
char *buf, *copy, *line, *cause1, *msg;
size_t len, oldlen;
struct cmd_list *cmdlist;
log_debug("loading %s", path);
if ((f = fopen(path, "rb")) == NULL) {
xasprintf(cause, "%s: %s", path, strerror(errno));
return (-1);
}
n = found = 0;
line = NULL;
while ((buf = fgetln(f, &len))) {
/* Trim \n. */
if (buf[len - 1] == '\n')
len--;
log_debug("%s: %.*s", path, (int)len, buf);
/* Current line is the continuation of the previous one. */
if (line != NULL) {
oldlen = strlen(line);
line = xrealloc(line, 1, oldlen + len + 1);
} else {
oldlen = 0;
line = xmalloc(len + 1);
}
/* Append current line to the previous. */
memcpy(line + oldlen, buf, len);
line[oldlen + len] = '\0';
n++;
/* Continuation: get next line? */
len = strlen(line);
if (len > 0 && line[len - 1] == '\\') {
line[len - 1] = '\0';
/* Ignore escaped backslash at EOL. */
if (len > 1 && line[len - 2] != '\\')
continue;
}
copy = line;
line = NULL;
/* Skip empty lines. */
buf = copy;
while (isspace((u_char)*buf))
buf++;
if (*buf == '\0') {
free(copy);
continue;
}
/* Parse and run the command. */
if (cmd_string_parse(buf, &cmdlist, path, n, &cause1) != 0) {
free(copy);
if (cause1 == NULL)
continue;
xasprintf(&msg, "%s:%u: %s", path, n, cause1);
ARRAY_ADD(&cfg_causes, msg);
free(cause1);
continue;
}
free(copy);
if (cmdlist == NULL)
continue;
cmdq_append(cmdq, cmdlist);
cmd_list_free(cmdlist);
found++;
}
if (line != NULL)
free(line);
fclose(f);
return (found);
}
enum cmd_retval
cmd_if_shell_exec(struct cmd *self, struct cmd_q *cmdq)
{
struct args *args = self->args;
struct cmd_if_shell_data *cdata;
char *shellcmd, *cmd, *cause;
struct cmd_list *cmdlist;
struct client *c;
struct session *s = NULL;
struct winlink *wl = NULL;
struct window_pane *wp = NULL;
struct format_tree *ft;
int cwd;
if (args_has(args, 't')) {
wl = cmd_find_pane(cmdq, args_get(args, 't'), &s, &wp);
cwd = wp->cwd;
} else {
c = cmd_find_client(cmdq, NULL, 1);
if (c != NULL && c->session != NULL) {
s = c->session;
wl = s->curw;
wp = wl->window->active;
}
if (cmdq->client != NULL && cmdq->client->session == NULL)
cwd = cmdq->client->cwd;
else if (s != NULL)
cwd = s->cwd;
else
cwd = -1;
}
ft = format_create();
format_defaults(ft, NULL, s, wl, wp);
shellcmd = format_expand(ft, args->argv[0]);
format_free(ft);
if (args_has(args, 'F')) {
cmd = NULL;
if (*shellcmd != '0' && *shellcmd != '\0')
cmd = args->argv[1];
else if (args->argc == 3)
cmd = args->argv[2];
if (cmd == NULL)
return (CMD_RETURN_NORMAL);
if (cmd_string_parse(cmd, &cmdlist, NULL, 0, &cause) != 0) {
if (cause != NULL) {
cmdq_error(cmdq, "%s", cause);
free(cause);
}
return (CMD_RETURN_ERROR);
}
cmdq_run(cmdq, cmdlist, &cmdq->item->mouse);
cmd_list_free(cmdlist);
return (CMD_RETURN_NORMAL);
}
cdata = xmalloc(sizeof *cdata);
cdata->cmd_if = xstrdup(args->argv[1]);
if (args->argc == 3)
cdata->cmd_else = xstrdup(args->argv[2]);
else
cdata->cmd_else = NULL;
cdata->bflag = args_has(args, 'b');
cdata->cmdq = cmdq;
memcpy(&cdata->mouse, &cmdq->item->mouse, sizeof cdata->mouse);
cmdq->references++;
cdata->references = 1;
job_run(shellcmd, s, cwd, cmd_if_shell_callback, cmd_if_shell_free,
cdata);
free(shellcmd);
if (cdata->bflag)
return (CMD_RETURN_NORMAL);
return (CMD_RETURN_WAIT);
}
/*
* Load configuration file. Returns -1 for an error with a list of messages in
* causes. Note that causes must be initialised by the caller!
*/
int
load_cfg(const char *path, struct cmd_ctx *ctxin, struct causelist *causes)
{
FILE *f;
u_int n;
char *buf, *line, *cause;
size_t len;
struct cmd_list *cmdlist;
struct cmd_ctx ctx;
int retval;
if ((f = fopen(path, "rb")) == NULL) {
cfg_add_cause(causes, "%s: %s", path, strerror(errno));
return (-1);
}
n = 0;
line = NULL;
retval = 0;
while ((buf = fgetln(f, &len))) {
if (buf[len - 1] == '\n')
len--;
if (line != NULL)
line = xrealloc(line, 1, strlen(line) + len + 1);
else {
line = xmalloc(len + 1);
*line = '\0';
}
/* Append buffer to line. strncat will terminate. */
strncat(line, buf, len);
n++;
/* Continuation: get next line? */
len = strlen(line);
if (len > 0 && line[len - 1] == '\\') {
line[len - 1] = '\0';
/* Ignore escaped backslash at EOL. */
if (len > 1 && line[len - 2] != '\\')
continue;
}
buf = line;
line = NULL;
if (cmd_string_parse(buf, &cmdlist, &cause) != 0) {
xfree(buf);
if (cause == NULL)
continue;
cfg_add_cause(causes, "%s: %u: %s", path, n, cause);
xfree(cause);
continue;
} else
xfree(buf);
if (cmdlist == NULL)
continue;
cfg_cause = NULL;
if (ctxin == NULL) {
ctx.msgdata = NULL;
ctx.curclient = NULL;
ctx.cmdclient = NULL;
} else {
ctx.msgdata = ctxin->msgdata;
ctx.curclient = ctxin->curclient;
ctx.cmdclient = ctxin->cmdclient;
}
ctx.error = cfg_error;
ctx.print = cfg_print;
ctx.info = cfg_print;
cfg_cause = NULL;
if (cmd_list_exec(cmdlist, &ctx) == 1)
retval = 1;
cmd_list_free(cmdlist);
if (cfg_cause != NULL) {
cfg_add_cause(
causes, "%s: %d: %s", path, n, cfg_cause);
xfree(cfg_cause);
}
}
if (line != NULL) {
cfg_add_cause(causes,
"%s: %d: line continuation at end of file", path, n);
xfree(line);
}
fclose(f);
return (retval);
}
static enum cmd_retval
cmd_if_shell_exec(struct cmd *self, struct cmdq_item *item)
{
struct args *args = self->args;
struct cmd_if_shell_data *cdata;
char *shellcmd, *cmd, *cause;
struct cmd_list *cmdlist;
struct cmdq_item *new_item;
struct client *c = item->state.c;
struct session *s = item->state.tflag.s;
struct winlink *wl = item->state.tflag.wl;
struct window_pane *wp = item->state.tflag.wp;
const char *cwd;
if (item->client != NULL && item->client->session == NULL)
cwd = item->client->cwd;
else if (s != NULL)
cwd = s->cwd;
else
cwd = NULL;
shellcmd = format_single(item, args->argv[0], c, s, wl, wp);
if (args_has(args, 'F')) {
cmd = NULL;
if (*shellcmd != '0' && *shellcmd != '\0')
cmd = args->argv[1];
else if (args->argc == 3)
cmd = args->argv[2];
free(shellcmd);
if (cmd == NULL)
return (CMD_RETURN_NORMAL);
cmdlist = cmd_string_parse(cmd, NULL, 0, &cause);
if (cmdlist == NULL) {
if (cause != NULL) {
cmdq_error(item, "%s", cause);
free(cause);
}
return (CMD_RETURN_ERROR);
}
new_item = cmdq_get_command(cmdlist, NULL, &item->mouse, 0);
cmdq_insert_after(item, new_item);
cmd_list_free(cmdlist);
return (CMD_RETURN_NORMAL);
}
cdata = xcalloc(1, sizeof *cdata);
if (self->file != NULL) {
cdata->file = xstrdup(self->file);
cdata->line = self->line;
}
cdata->cmd_if = xstrdup(args->argv[1]);
if (args->argc == 3)
cdata->cmd_else = xstrdup(args->argv[2]);
else
cdata->cmd_else = NULL;
cdata->client = item->client;
cdata->client->references++;
if (!args_has(args, 'b'))
cdata->item = item;
else
cdata->item = NULL;
memcpy(&cdata->mouse, &item->mouse, sizeof cdata->mouse);
job_run(shellcmd, s, cwd, cmd_if_shell_callback, cmd_if_shell_free,
cdata);
free(shellcmd);
if (args_has(args, 'b'))
return (CMD_RETURN_NORMAL);
return (CMD_RETURN_WAIT);
}