diff options
| author | Denys Vlasenko <vda.linux@googlemail.com> | 2022-01-13 01:19:11 +0300 |
|---|---|---|
| committer | Denys Vlasenko <vda.linux@googlemail.com> | 2022-01-13 01:19:11 +0300 |
| commit | d162a7b978a98b910e410dc10a40d5de12db0419 (patch) | |
| tree | 63271dbbe027b26692befba9944d0554b00968d0 /include | |
| parent | 004cefa918483513a9eca13e7701c74dff160e95 (diff) | |
sulogin: increase util-linux compatibility
Change to root's HOME. Set some envvars. Steal ctty if necessary and possible.
function old new delta
sulogin_main 240 340 +100
setup_environment 225 233 +8
su_main 479 474 -5
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/1 up/down: 108/-5) Total: 103 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/libbb.h | 18 |
1 files changed, 10 insertions, 8 deletions
diff --git a/include/libbb.h b/include/libbb.h index daa310776..a0ffbef62 100644 --- a/include/libbb.h +++ b/include/libbb.h @@ -1726,15 +1726,16 @@ extern void selinux_or_die(void) FAST_FUNC; /* setup_environment: - * if chdir pw->pw_dir: ok: else if to_tmp == 1: goto /tmp else: goto / or die - * if clear_env = 1: cd(pw->pw_dir), clear environment, then set + * if !SETUP_ENV_NO_CHDIR: + * if cd(pw->pw_dir): ok: else if SETUP_ENV_TO_TMP: cd(/tmp) else: cd(/) or die + * if SETUP_ENV_CLEARENV: cd(pw->pw_dir), clear environment, then set * TERM=(old value) * USER=pw->pw_name, LOGNAME=pw->pw_name * PATH=bb_default_[root_]path * HOME=pw->pw_dir * SHELL=shell - * else if change_env = 1: - * if not root (if pw->pw_uid != 0): + * else if SETUP_ENV_CHANGEENV: + * if not root (if pw->pw_uid != 0) or if SETUP_ENV_CHANGEENV_LOGNAME: * USER=pw->pw_name, LOGNAME=pw->pw_name * HOME=pw->pw_dir * SHELL=shell @@ -1743,10 +1744,11 @@ extern void selinux_or_die(void) FAST_FUNC; * NB: CHANGEENV and CLEARENV use setenv() - this leaks memory! * If setup_environment() is used is vforked child, this leaks memory _in parent too_! */ -#define SETUP_ENV_CHANGEENV (1 << 0) -#define SETUP_ENV_CLEARENV (1 << 1) -#define SETUP_ENV_TO_TMP (1 << 2) -#define SETUP_ENV_NO_CHDIR (1 << 4) +#define SETUP_ENV_CHANGEENV (1 << 0) +#define SETUP_ENV_CHANGEENV_LOGNAME (1 << 1) +#define SETUP_ENV_CLEARENV (1 << 2) +#define SETUP_ENV_TO_TMP (1 << 3) +#define SETUP_ENV_NO_CHDIR (1 << 4) void setup_environment(const char *shell, int flags, const struct passwd *pw) FAST_FUNC; void nuke_str(char *str) FAST_FUNC; #if ENABLE_FEATURE_SECURETTY && !ENABLE_PAM |