aboutsummaryrefslogtreecommitdiff
path: root/tmux.c
diff options
context:
space:
mode:
Diffstat (limited to 'tmux.c')
-rw-r--r--tmux.c17
1 files changed, 16 insertions, 1 deletions
diff --git a/tmux.c b/tmux.c
index c6e4f830..a582b951 100644
--- a/tmux.c
+++ b/tmux.c
@@ -484,6 +484,7 @@ main(int argc, char **argv)
cmddata.pid = envdata.pid;
cmddata.idx = envdata.idx;
+ /* Prepare command for server. */
cmddata.argc = argc;
if (cmd_pack_argv(
argc, argv, cmddata.argv, sizeof cmddata.argv) != 0) {
@@ -499,7 +500,7 @@ main(int argc, char **argv)
if (shellcmd != NULL)
cmdflags |= CMD_STARTSERVER;
else if (argc == 0) /* new-session is the default */
- cmdflags |= CMD_STARTSERVER|CMD_SENDENVIRON;
+ cmdflags |= CMD_STARTSERVER|CMD_SENDENVIRON|CMD_CANTNEST;
else {
/*
* It sucks parsing the command string twice (in client and
@@ -516,10 +517,24 @@ main(int argc, char **argv)
cmdflags |= CMD_STARTSERVER;
if (cmd->entry->flags & CMD_SENDENVIRON)
cmdflags |= CMD_SENDENVIRON;
+ if (cmd->entry->flags & CMD_CANTNEST)
+ cmdflags |= CMD_CANTNEST;
}
cmd_list_free(cmdlist);
}
+ /*
+ * Check if this could be a nested session, if the command can't nest:
+ * if the socket path matches $TMUX, this is probably the same server.
+ */
+ if (shellcmd == NULL && envdata.path != NULL &&
+ cmdflags & CMD_CANTNEST &&
+ (path == envdata.path || strcmp(path, envdata.path) == 0)) {
+ log_warnx("sessions should be nested with care. "
+ "unset $TMUX to force.");
+ exit(1);
+ }
+
if ((main_ibuf = client_init(path, cmdflags, flags)) == NULL)
exit(1);
xfree(path);