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| author | Pascal Bellard | 2012-06-12 13:21:02 +0200 |
|---|---|---|
| committer | Denys Vlasenko | 2012-06-12 13:21:02 +0200 |
| commit | 70fc8c17e2d032f34162f7abc3e65a67c0ff272a (patch) | |
| tree | b2a4b1b2f6d52b01056e4601aca1c676e7f0f80f | |
| parent | 588e284f53da2dc5c58f3d1b9efacd6e9061baf1 (diff) | |
| download | busybox-70fc8c17e2d032f34162f7abc3e65a67c0ff272a.zip busybox-70fc8c17e2d032f34162f7abc3e65a67c0ff272a.tar.gz | |
su: do not change to home dir unless -l
Signed-off-by: Pascal Bellard <pascal.bellard@ads-lu.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
| -rw-r--r-- | include/libbb.h | 1 | ||||
| -rw-r--r-- | libbb/setup_environment.c | 8 | ||||
| -rw-r--r-- | libbb/xfuncs_printf.c | 4 | ||||
| -rw-r--r-- | loginutils/su.c | 3 | ||||
| -rw-r--r-- | networking/httpd.c | 2 |
5 files changed, 11 insertions, 7 deletions
diff --git a/include/libbb.h b/include/libbb.h index 5e5c8c7..322a28c 100644 --- a/include/libbb.h +++ b/include/libbb.h @@ -1286,6 +1286,7 @@ int sd_listen_fds(void); #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) extern void setup_environment(const char *shell, int flags, const struct passwd *pw) FAST_FUNC; extern int correct_password(const struct passwd *pw) FAST_FUNC; /* Returns a malloced string */ diff --git a/libbb/setup_environment.c b/libbb/setup_environment.c index 73229ca..4258656 100644 --- a/libbb/setup_environment.c +++ b/libbb/setup_environment.c @@ -37,9 +37,11 @@ void FAST_FUNC setup_environment(const char *shell, int flags, const struct pass /* Change the current working directory to be the home directory * of the user */ - if (chdir(pw->pw_dir)) { - xchdir((flags & SETUP_ENV_TO_TMP) ? "/tmp" : "/"); - bb_error_msg("can't chdir to home directory '%s'", pw->pw_dir); + if (!(flags & SETUP_ENV_NO_CHDIR)) { + if (chdir(pw->pw_dir) != 0) { + bb_error_msg("can't change directory to '%s'", pw->pw_dir); + xchdir((flags & SETUP_ENV_TO_TMP) ? "/tmp" : "/"); + } } if (flags & SETUP_ENV_CLEARENV) { diff --git a/libbb/xfuncs_printf.c b/libbb/xfuncs_printf.c index d8a42ba..05aa07c 100644 --- a/libbb/xfuncs_printf.c +++ b/libbb/xfuncs_printf.c @@ -355,13 +355,13 @@ void FAST_FUNC xsetuid(uid_t uid) void FAST_FUNC xchdir(const char *path) { if (chdir(path)) - bb_perror_msg_and_die("chdir(%s)", path); + bb_perror_msg_and_die("can't change directory to '%s'", path); } void FAST_FUNC xchroot(const char *path) { if (chroot(path)) - bb_perror_msg_and_die("can't change root directory to %s", path); + bb_perror_msg_and_die("can't change root directory to '%s'", path); xchdir("/"); } diff --git a/loginutils/su.c b/loginutils/su.c index 57ea738..2ec05e1 100644 --- a/loginutils/su.c +++ b/loginutils/su.c @@ -131,7 +131,8 @@ int su_main(int argc UNUSED_PARAM, char **argv) change_identity(pw); setup_environment(opt_shell, ((flags & SU_OPT_l) / SU_OPT_l * SETUP_ENV_CLEARENV) - + (!(flags & SU_OPT_mp) * SETUP_ENV_CHANGEENV), + + (!(flags & SU_OPT_mp) * SETUP_ENV_CHANGEENV) + + (!(flags & SU_OPT_l) * SETUP_ENV_NO_CHDIR), pw); IF_SELINUX(set_current_security_context(NULL);) diff --git a/networking/httpd.c b/networking/httpd.c index 12218a0..a942794 100644 --- a/networking/httpd.c +++ b/networking/httpd.c @@ -1414,7 +1414,7 @@ static void send_cgi_and_exit( if (script != url) { /* paranoia */ *script = '\0'; if (chdir(url + 1) != 0) { - bb_perror_msg("chdir(%s)", url + 1); + bb_perror_msg("can't change directory to '%s'", url + 1); goto error_execing_cgi; } // not needed: *script = '/'; |