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Setting the cmdlist pointer in the bind-key to NULL to prevent it being freed
after the command is executing is bogus because it may still be needed if the same command is going to be executed again (for example if you "bind-key a bind-key b ..."). Making a copy is hard, so instead add a reference count to the cmd_list. While here, also print bind-key -n and the rest of the flags properly. Fixes problem reported by mcbride@.
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parent
ef7293379f
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42e2413978
@ -130,7 +130,7 @@ cmd_bind_key_exec(struct cmd *self, unused struct cmd_ctx *ctx)
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return (cmd_bind_key_table(self, ctx));
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key_bindings_add(data->key, data->can_repeat, data->cmdlist);
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data->cmdlist = NULL; /* avoid free */
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data->cmdlist->references++;
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return (0);
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}
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@ -192,8 +192,17 @@ cmd_bind_key_print(struct cmd *self, char *buf, size_t len)
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off += xsnprintf(buf, len, "%s", self->entry->name);
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if (data == NULL)
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return (off);
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if (off < len && data->command_key)
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off += xsnprintf(buf + off, len - off, " -c");
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if (off < len && !(data->key & KEYC_PREFIX))
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off += xsnprintf(buf + off, len - off, " -n");
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if (off < len && data->can_repeat)
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off += xsnprintf(buf + off, len - off, " -r");
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if (off < len && data->tablename != NULL)
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off += cmd_prarg(buf + off, len - off, " -t ", data->tablename);
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if (off < len) {
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skey = key_string_lookup_key(data->key);
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skey = key_string_lookup_key(data->key & ~KEYC_PREFIX);
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off += xsnprintf(buf + off, len - off, " %s ", skey);
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}
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if (off < len)
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20
cmd-list.c
20
cmd-list.c
@ -32,7 +32,8 @@ cmd_list_parse(int argc, char **argv, char **cause)
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char **new_argv;
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cmdlist = xmalloc(sizeof *cmdlist);
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TAILQ_INIT(cmdlist);
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cmdlist->references = 1;
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TAILQ_INIT(&cmdlist->list);
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lastsplit = 0;
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for (i = 0; i < argc; i++) {
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@ -54,7 +55,7 @@ cmd_list_parse(int argc, char **argv, char **cause)
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cmd = cmd_parse(new_argc, new_argv, cause);
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if (cmd == NULL)
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goto bad;
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TAILQ_INSERT_TAIL(cmdlist, cmd, qentry);
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TAILQ_INSERT_TAIL(&cmdlist->list, cmd, qentry);
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lastsplit = i + 1;
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}
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@ -63,7 +64,7 @@ cmd_list_parse(int argc, char **argv, char **cause)
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cmd = cmd_parse(argc - lastsplit, argv + lastsplit, cause);
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if (cmd == NULL)
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goto bad;
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TAILQ_INSERT_TAIL(cmdlist, cmd, qentry);
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TAILQ_INSERT_TAIL(&cmdlist->list, cmd, qentry);
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}
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return (cmdlist);
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@ -80,7 +81,7 @@ cmd_list_exec(struct cmd_list *cmdlist, struct cmd_ctx *ctx)
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int n, retval;
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retval = 0;
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TAILQ_FOREACH(cmd, cmdlist, qentry) {
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TAILQ_FOREACH(cmd, &cmdlist->list, qentry) {
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if ((n = cmd_exec(cmd, ctx)) == -1)
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return (-1);
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@ -114,9 +115,12 @@ cmd_list_free(struct cmd_list *cmdlist)
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{
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struct cmd *cmd;
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while (!TAILQ_EMPTY(cmdlist)) {
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cmd = TAILQ_FIRST(cmdlist);
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TAILQ_REMOVE(cmdlist, cmd, qentry);
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if (--cmdlist->references != 0)
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return;
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while (!TAILQ_EMPTY(&cmdlist->list)) {
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cmd = TAILQ_FIRST(&cmdlist->list);
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TAILQ_REMOVE(&cmdlist->list, cmd, qentry);
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cmd_free(cmd);
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}
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xfree(cmdlist);
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@ -129,7 +133,7 @@ cmd_list_print(struct cmd_list *cmdlist, char *buf, size_t len)
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size_t off;
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off = 0;
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TAILQ_FOREACH(cmd, cmdlist, qentry) {
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TAILQ_FOREACH(cmd, &cmdlist->list, qentry) {
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if (off >= len)
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break;
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off += cmd_print(cmd, buf + off, len - off);
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@ -178,14 +178,15 @@ key_bindings_init(void)
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for (i = 0; i < nitems(table); i++) {
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cmdlist = xmalloc(sizeof *cmdlist);
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TAILQ_INIT(cmdlist);
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TAILQ_INIT(&cmdlist->list);
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cmdlist->references = 1;
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cmd = xmalloc(sizeof *cmd);
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cmd->entry = table[i].entry;
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cmd->data = NULL;
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if (cmd->entry->init != NULL)
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cmd->entry->init(cmd, table[i].key);
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TAILQ_INSERT_HEAD(cmdlist, cmd, qentry);
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TAILQ_INSERT_HEAD(&cmdlist->list, cmd, qentry);
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key_bindings_add(
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table[i].key | KEYC_PREFIX, table[i].can_repeat, cmdlist);
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@ -259,7 +260,7 @@ key_bindings_dispatch(struct key_binding *bd, struct client *c)
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ctx.cmdclient = NULL;
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readonly = 1;
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TAILQ_FOREACH(cmd, bd->cmdlist, qentry) {
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TAILQ_FOREACH(cmd, &bd->cmdlist->list, qentry) {
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if (!(cmd->entry->flags & CMD_READONLY))
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readonly = 0;
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}
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2
tmux.c
2
tmux.c
@ -517,7 +517,7 @@ main(int argc, char **argv)
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exit(1);
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}
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cmdflags &= ~CMD_STARTSERVER;
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TAILQ_FOREACH(cmd, cmdlist, qentry) {
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TAILQ_FOREACH(cmd, &cmdlist->list, qentry) {
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if (cmd->entry->flags & CMD_STARTSERVER)
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cmdflags |= CMD_STARTSERVER;
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if (cmd->entry->flags & CMD_SENDENVIRON)
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