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| author |   Bruno Haible <bruno@clisp.org> | 2010-04-28 15:00:14 -0700 |
|---|---|---|
| committer |   Roland McGrath <roland@redhat.com> | 2010-04-28 15:00:14 -0700 |
| commit | 8c0677fe5d91b7269364ca08fa08ed09e4c2d8c9 (patch) | |
| tree | bf7c3ab332c3f5443cae34a82656765cb30c2a23 /sysdeps/unix/getlogin.c | |
| parent | BZ #11537: Hurd: Fix ttyname_r error return value. (diff) | |
| download | glibc-8c0677fe5d91b7269364ca08fa08ed09e4c2d8c9.tar.xz glibc-8c0677fe5d91b7269364ca08fa08ed09e4c2d8c9.zip | |
BZ #11538: Fix ttyname_r callers not to expect errno was set.
Diffstat (limited to '')
| -rw-r--r-- | sysdeps/unix/getlogin.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/sysdeps/unix/getlogin.c b/sysdeps/unix/getlogin.c index b0ad97cfa5..1fb70733fb 100644 --- a/sysdeps/unix/getlogin.c +++ b/sysdeps/unix/getlogin.c @@ -38,6 +38,7 @@ getlogin (void) { char tty_pathname[2 + 2 * NAME_MAX]; char *real_tty_path = tty_pathname; + int err; char *result = NULL; struct utmp *ut, line, buffer; @@ -50,8 +51,12 @@ getlogin (void) thing to do. Note that ttyname(open("/dev/tty")) on those systems returns /dev/tty, so that is not a possible solution for getlogin(). */ - if (__ttyname_r (0, real_tty_path, sizeof (tty_pathname)) != 0) - return NULL; + err = __ttyname_r (0, real_tty_path, sizeof (tty_pathname)); + if (err != 0) + { + __set_errno (err); + return NULL; + } real_tty_path += 5; /* Remove "/dev/". */ |