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commit 11c1c6becee5cd3254448c6857bc0f4e2f330d05 Author: wangjianyu3 <[email protected]> AuthorDate: Wed Aug 26 22:54:16 2026 +0800 system/nxinit: add 'set' builtin command for environment variables Previously, 'set KEY VALUE' in init.rc was not recognized as a builtin command. It fell through to posix_spawnp(), which ran it in a temporary child shell. The environment variable was set only in the child process and lost when it exited, so services started afterward never inherited it. Register cmd_set as an init builtin that calls setenv(key, value, 1) directly in the init process. The command takes exactly 2 arguments (key and value). All code is guarded by CONFIG_DISABLE_ENVIRON so it compiles out when environment support is disabled. Since child processes inherit init's environment, 'set TZ Asia/Shanghai' in init.rc now correctly propagates to all subsequently started services. Signed-off-by: wangjianyu3 <[email protected]> --- system/nxinit/builtin.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/system/nxinit/builtin.c b/system/nxinit/builtin.c index f0097d90c..5ed7f3a29 100644 --- a/system/nxinit/builtin.c +++ b/system/nxinit/builtin.c @@ -64,6 +64,10 @@ static int cmd_start(FAR struct action_manager_s *am, int argc, FAR char **argv); static int cmd_stop(FAR struct action_manager_s *am, int argc, FAR char **argv); +#ifndef CONFIG_DISABLE_ENVIRON +static int cmd_set(FAR struct action_manager_s *am, + int argc, FAR char **argv); +#endif #if CONFIG_SYSTEM_NXINIT_ACTION_EVENTS_MAX > 1 static int cmd_setprop(FAR struct action_manager_s *am, int argc, FAR char **argv); @@ -107,6 +111,9 @@ static const struct cmd_map_s g_builtin[] = {"class_stop", 2, 2, cmd_class_stop}, {"exec", 3, 99, cmd_exec}, {"exec_start", 2, 2, cmd_exec_start}, +#ifndef CONFIG_DISABLE_ENVIRON + {"set", 3, 3, cmd_set}, +#endif #if CONFIG_SYSTEM_NXINIT_ACTION_EVENTS_MAX > 1 {"setprop", 3, 3, cmd_setprop}, #endif @@ -221,6 +228,16 @@ static int cmd_stop(FAR struct action_manager_s *am, return init_service_stop(service); } +#ifndef CONFIG_DISABLE_ENVIRON +static int cmd_set(FAR struct action_manager_s *am, + int argc, FAR char **argv) +{ + UNUSED(am); + init_info("setenv '%s' '%s'", argv[1], argv[2]); + return setenv(argv[1], argv[2], 1); +} +#endif + #if CONFIG_SYSTEM_NXINIT_ACTION_EVENTS_MAX > 1 static int cmd_setprop(FAR struct action_manager_s *am, int argc, FAR char **argv)
