From 5371d99e8766f25864ddf20fb0866e57fc0b7991 Mon Sep 17 00:00:00 2001 From: Joseph Myers Date: Fri, 12 Jun 2015 20:02:30 +0000 Subject: Fix getlogin_r namespace (bug 18527). Various functions in XPG4 bring in references to getlogin_r, which is not in XPG4; this is also a bug for some older POSIX versions which aren't yet covered by the linknamespace tests. This patch fixes this by making getlogin_r into a weak alias for __getlogin_r and using __getlogin_r as needed. Tested for x86_64 and x86 (testsuite, and that disassembly of installed stripped shared libraries is unchanged by the patch). [BZ #18527] * login/getlogin_r.c (getlogin_r): Rename to __getlogin_r and define as weak alias of __getlogin_r. Use libc_hidden_weak. * sysdeps/mach/hurd/getlogin_r.c (getlogin_r): Likewise. * sysdeps/unix/getlogin_r.c (getlogin_r): Likewise. * sysdeps/unix/sysv/linux/getlogin_r.c (getlogin_r): Likewise. * include/unistd.h (__getlogin_r): Declare. Use libc_hidden_proto. * posix/glob.c (glob): Call __getlogin_r instead of getlogin_r. * conform/Makefile (test-xfail-XPG3/glob.h/linknamespace): Remove variable. (test-xfail-XPG3/wordexp.h/linknamespace): Likewise. (test-xfail-XPG4/glob.h/linknamespace): Likewise. (test-xfail-XPG4/wordexp.h/linknamespace): Likewise. --- login/getlogin_r.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'login') diff --git a/login/getlogin_r.c b/login/getlogin_r.c index a49fb4a..8848b61 100644 --- a/login/getlogin_r.c +++ b/login/getlogin_r.c @@ -23,13 +23,15 @@ If it cannot be determined or some other error occurred, return the error code. Otherwise return 0. */ int -getlogin_r (name, name_len) +__getlogin_r (name, name_len) char *name; size_t name_len; { __set_errno (ENOSYS); return errno; } -libc_hidden_def (getlogin_r) +libc_hidden_def (__getlogin_r) +weak_alias (__getlogin_r, getlogin_r) +libc_hidden_weak (getlogin_r) stub_warning (getlogin_r) -- cgit v1.1