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Diffstat (limited to 'pwd/getpw.c')
-rw-r--r--pwd/getpw.c40
1 files changed, 23 insertions, 17 deletions
diff --git a/pwd/getpw.c b/pwd/getpw.c
index 402fafd7f0..9c2e4afd0a 100644
--- a/pwd/getpw.c
+++ b/pwd/getpw.c
@@ -1,23 +1,25 @@
/* Copyright (C) 1991, 1992, 1996 Free Software Foundation, Inc.
-This file is part of the GNU C Library.
+ This file is part of the GNU C Library.
-The GNU C Library is free software; you can redistribute it and/or
-modify it under the terms of the GNU Library General Public License as
-published by the Free Software Foundation; either version 2 of the
-License, or (at your option) any later version.
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public License as
+ published by the Free Software Foundation; either version 2 of the
+ License, or (at your option) any later version.
-The GNU C Library is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-Library General Public License for more details.
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Library General Public License for more details.
-You should have received a copy of the GNU Library General Public
-License along with the GNU C Library; see the file COPYING.LIB. If
-not, write to the Free Software Foundation, Inc., 675 Mass Ave,
-Cambridge, MA 02139, USA. */
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+#include <alloca.h>
#include <errno.h>
#include <stdio.h>
+#include <unistd.h>
#include <pwd.h>
@@ -30,9 +32,11 @@ int __getpw __P ((__uid_t uid, char *buf));
int
__getpw (uid, buf)
__uid_t uid;
- register char *buf;
+ char *buf;
{
- register struct passwd *p;
+ size_t buflen;
+ char *tmpbuf;
+ struct passwd resbuf, *p;
if (buf == NULL)
{
@@ -40,8 +44,10 @@ __getpw (uid, buf)
return -1;
}
- p = getpwuid (uid);
- if (p == NULL)
+ buflen = __sysconf (_SC_GETPW_R_SIZE_MAX);
+ tmpbuf = alloca (buflen);
+
+ if (getpwuid_r (uid, &resbuf, tmpbuf, buflen, &p) < 0)
return -1;
if (sprintf (buf, "%s:%s:%u:%u:%s:%s:%s", p->pw_name, p->pw_passwd,