new NOFORKs: pwdx,kill[all5],ttysize,realpath,readlink NOEXECs: date,resize

function                                             old     new   delta
run_nofork_applet                                    258     280     +22
readlink_main                                        112     123     +11
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/0 up/down: 33/0)               Total: 33 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/libbb/bb_pwd.c b/libbb/bb_pwd.c
index 4829b723a..dca0a150b 100644
--- a/libbb/bb_pwd.c
+++ b/libbb/bb_pwd.c
@@ -31,9 +31,9 @@ struct group* FAST_FUNC xgetgrnam(const char *name)
         return gr;
 }
 
-
 struct passwd* FAST_FUNC xgetpwuid(uid_t uid)
 {
+        /* Note: used in nofork applets (whoami), be careful not to leak anything */
         struct passwd *pw = getpwuid(uid);
         if (!pw)
                 bb_error_msg_and_die("unknown uid %u", (unsigned)uid);
@@ -50,6 +50,7 @@ struct group* FAST_FUNC xgetgrgid(gid_t gid)
 
 char* FAST_FUNC xuid2uname(uid_t uid)
 {
+        /* Note: used in nofork applets (whoami), be careful not to leak anything */
         struct passwd *pw = xgetpwuid(uid);
         return pw->pw_name;
 }