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| author | Joseph Myers <joseph@codesourcery.com> | 2015-06-12 20:02:30 +0000 |
|---|---|---|
| committer | Joseph Myers <joseph@codesourcery.com> | 2015-06-12 20:02:30 +0000 |
| commit | 5371d99e8766f25864ddf20fb0866e57fc0b7991 (patch) | |
| tree | 7da25c486c5cee518ba959fd05f3629a0479b253 /sysdeps/unix/sysv/linux/getlogin_r.c | |
| parent | a82a3db95077c8343b988a6f1b03adea3d40f6d4 (diff) | |
| download | glibc-5371d99e8766f25864ddf20fb0866e57fc0b7991.tar.gz glibc-5371d99e8766f25864ddf20fb0866e57fc0b7991.tar.xz glibc-5371d99e8766f25864ddf20fb0866e57fc0b7991.zip | |
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.
Diffstat (limited to 'sysdeps/unix/sysv/linux/getlogin_r.c')
| -rw-r--r-- | sysdeps/unix/sysv/linux/getlogin_r.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/sysdeps/unix/sysv/linux/getlogin_r.c b/sysdeps/unix/sysv/linux/getlogin_r.c index 2c52b2183b..aa61f6134d 100644 --- a/sysdeps/unix/sysv/linux/getlogin_r.c +++ b/sysdeps/unix/sysv/linux/getlogin_r.c @@ -21,9 +21,9 @@ #define STATIC static static int getlogin_r_fd0 (char *name, size_t namesize); -#define getlogin_r getlogin_r_fd0 +#define __getlogin_r getlogin_r_fd0 #include <sysdeps/unix/getlogin_r.c> -#undef getlogin_r +#undef __getlogin_r /* Try to determine login name from /proc/self/loginuid and return 0 @@ -109,7 +109,7 @@ __getlogin_r_loginuid (name, namesize) code. Otherwise return 0. */ int -getlogin_r (name, namesize) +__getlogin_r (name, namesize) char *name; size_t namesize; { @@ -119,4 +119,6 @@ getlogin_r (name, namesize) return getlogin_r_fd0 (name, namesize); } -libc_hidden_def (getlogin_r) +libc_hidden_def (__getlogin_r) +weak_alias (__getlogin_r, getlogin_r) +libc_hidden_weak (getlogin_r) |