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authorUlrich Drepper <drepper@redhat.com>2010-03-24 17:02:57 -0700
committerUlrich Drepper <drepper@redhat.com>2010-03-24 17:02:57 -0700
commitc8727fa6e5073d28ed6d0eb40a006ac2c1b9f9f3 (patch)
tree23369e9301bb60abd73e4384e7974fa32acd6e57 /sysdeps/unix/getlogin_r.c
parentfd8ccb0427569ffdfbb70c8828029122f3459160 (diff)
Fix Linux getlogin{_r,} implementation
The old implementation uses fd 0 to determine the login TTY. This was needed because using /dev/tty it is not possible to deduce the login TTY. For some time now there is the pseudo-file /proc/self/loginuid which directly helps us to find the user. Prefer using this file. It also works if stdin is closed, redirected, or re-opened.
Diffstat (limited to 'sysdeps/unix/getlogin_r.c')
-rw-r--r--sysdeps/unix/getlogin_r.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/sysdeps/unix/getlogin_r.c b/sysdeps/unix/getlogin_r.c
index ba7badd054..bf3c889e13 100644
--- a/sysdeps/unix/getlogin_r.c
+++ b/sysdeps/unix/getlogin_r.c
@@ -1,5 +1,5 @@
/* Reentrant function to return the current login name. Unix version.
- Copyright (C) 1991,92,96,97,98,2002 Free Software Foundation, Inc.
+ Copyright (C) 1991,92,96,97,98,2002,2010 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -31,6 +31,9 @@
If it cannot be determined or some other error occurred, return the error
code. Otherwise return 0. */
+#ifdef STATIC
+STATIC
+#endif
int
getlogin_r (name, name_len)
char *name;
@@ -96,4 +99,6 @@ getlogin_r (name, name_len)
return result;
}
+#ifndef STATIC
libc_hidden_def (getlogin_r)
+#endif