sulogin: add support for $SUSHELL & $sushell

git-svn-id: svn://busybox.net/trunk/busybox@16380 69ca8d6d-28ef-0310-b511-8ec308f3f277

2 files changed, 19 insertions, 9 deletions

diff --git a/loginutils/adduser.c b/loginutils/adduser.c
index 8101b20b4..a99f47d68 100644
--- a/loginutils/adduser.c
+++ b/loginutils/adduser.c
@@ -114,11 +114,11 @@ static int adduser(struct passwd *p, unsigned long flags)
         file = xfopen(bb_path_shadow_file, "a");
         fseek(file, 0, SEEK_END);
         fprintf(file, "%s:!:%ld:%d:%d:%d:::\n",
-                                        p->pw_name,                             /* username */
-                                        time(NULL) / 86400,             /* sp->sp_lstchg */ 
-                                        0,                                              /* sp->sp_min */
-                                        99999,                                  /* sp->sp_max */
-                                        7);                                             /* sp->sp_warn */
+                        p->pw_name,             /* username */
+                        time(NULL) / 86400,     /* sp->sp_lstchg */ 
+                        0,                      /* sp->sp_min */
+                        99999,                  /* sp->sp_max */
+                        7);                     /* sp->sp_warn */
         fclose(file);
 #endif
 
diff --git a/loginutils/sulogin.c b/loginutils/sulogin.c
index 679439544..c07264e7b 100644
--- a/loginutils/sulogin.c
+++ b/loginutils/sulogin.c
@@ -42,6 +42,7 @@ int sulogin_main(int argc, char **argv)
         const char * const *p;
         struct passwd *pwd;
         struct spwd *spwd;
+        const char *shell;
 
         logmode = LOGMODE_BOTH;
         openlog(applet_name, 0, LOG_AUTH);
@@ -69,12 +70,14 @@ int sulogin_main(int argc, char **argv)
 
         signal(SIGALRM, catchalarm);
 
-        if (!(pwd = getpwuid(0))) {
+        pwd = getpwuid(0);
+        if (!pwd) {
                 goto auth_error;
         }
 
         if (ENABLE_FEATURE_SHADOWPASSWDS) {
-                if (!(spwd = getspnam(pwd->pw_name))) {
+                spwd = getspnam(pwd->pw_name);
+                if (!spwd) {
                         goto auth_error;
                 }
                 pwd->pw_passwd = spwd->sp_pwdp;
@@ -103,9 +106,16 @@ int sulogin_main(int argc, char **argv)
 
         USE_SELINUX(renew_current_security_context());
 
-        run_shell(pwd->pw_shell, 1, 0, 0);
+        shell = getenv("SUSHELL");
+        if (!shell) shell = getenv("sushell");
+        if (!shell) {
+                shell = "/bin/sh";
+                if (pwd->pw_shell[0])
+                        shell = pwd->pw_shell;
+        }
+        run_shell(shell, 1, 0, 0);
         /* never returns */
 
 auth_error:
-        bb_error_msg_and_die("no password entry for `root'");
+        bb_error_msg_and_die("no password entry for 'root'");
 }