From d069e5398d7538bdcf0e97c357c28aade3d01a28 Mon Sep 17 00:00:00 2001 From: Denys Vlasenko Date: Wed, 9 Sep 2009 23:12:10 +0200 Subject: a few more GCC-isms removed text data bss dec hex filename 824641 458 6956 832055 cb237 busybox_old 824631 458 6956 832045 cb22d busybox_unstripped Signed-off-by: Denys Vlasenko --- loginutils/su.c | 23 ++++++++++++++++++----- 1 file changed, 18 insertions(+), 5 deletions(-) (limited to 'loginutils/su.c') diff --git a/loginutils/su.c b/loginutils/su.c index a8b852b09..a3f7ed8a0 100644 --- a/loginutils/su.c +++ b/loginutils/su.c @@ -40,11 +40,24 @@ int su_main(int argc UNUSED_PARAM, char **argv) if (ENABLE_FEATURE_SU_SYSLOG) { /* The utmp entry (via getlogin) is probably the best way to identify - the user, especially if someone su's from a su-shell. - But getlogin can fail -- usually due to lack of utmp entry. - in this case resort to getpwuid. */ - old_user = xstrdup(IF_FEATURE_UTMP(getlogin() ? : ) (pw = getpwuid(cur_uid)) ? pw->pw_name : ""); - tty = xmalloc_ttyname(2) ? : "none"; + * the user, especially if someone su's from a su-shell. + * But getlogin can fail -- usually due to lack of utmp entry. + * in this case resort to getpwuid. */ + const char *user; +#if ENABLE_FEATURE_UTMP + char user_buf[64]; + user = user_buf; + if (getlogin_r(user_buf, sizeof(user_buf)) != 0) +#endif + { + pw = getpwuid(cur_uid); + user = pw ? pw->pw_name : ""; + } + old_user = xstrdup(user); + tty = xmalloc_ttyname(2); + if (!tty) { + tty = "none"; + } openlog(applet_name, 0, LOG_AUTH); } -- cgit v1.2.3