diff options
| -rw-r--r-- | loginutils/login.c | 18 |
1 files changed, 8 insertions, 10 deletions
diff --git a/loginutils/login.c b/loginutils/login.c index d9e9b532b..cdc38fbaf 100644 --- a/loginutils/login.c +++ b/loginutils/login.c @@ -284,7 +284,7 @@ int login_main(int argc UNUSED_PARAM, char **argv) struct passwd *pw; char *opt_host = opt_host; /* for compiler */ char *opt_user = opt_user; /* for compiler */ - char full_tty[TTYNAME_SIZE]; + char *full_tty; USE_SELINUX(security_context_t user_sid = NULL;) USE_FEATURE_UTMP(struct utmp utent;) #if ENABLE_PAM @@ -296,7 +296,6 @@ int login_main(int argc UNUSED_PARAM, char **argv) char pwdbuf[256]; #endif - short_tty = full_tty; username[0] = '\0'; signal(SIGALRM, alarm_handler); alarm(TIMEOUT); @@ -322,15 +321,14 @@ int login_main(int argc UNUSED_PARAM, char **argv) safe_strncpy(username, argv[0], sizeof(username)); /* Let's find out and memorize our tty */ - if (!isatty(0) || !isatty(1) || !isatty(2)) + if (!isatty(STDIN_FILENO) || !isatty(STDOUT_FILENO) || !isatty(STDERR_FILENO)) return EXIT_FAILURE; /* Must be a terminal */ - safe_strncpy(full_tty, "UNKNOWN", sizeof(full_tty)); - tmp = xmalloc_ttyname(STDIN_FILENO); - if (tmp) { - safe_strncpy(full_tty, tmp, sizeof(full_tty)); - if (strncmp(full_tty, "/dev/", 5) == 0) - short_tty = full_tty + 5; - } + full_tty = xmalloc_ttyname(STDIN_FILENO); + if (!full_tty) + full_tty = xstrdup("UNKNOWN"); + short_tty = full_tty; + if (strncmp(full_tty, "/dev/", 5) == 0) + short_tty += 5; read_or_build_utent(&utent, run_by_root); |