aboutsummaryrefslogtreecommitdiff
path: root/sysdeps/unix/sysv/linux/gethostid.c
diff options
context:
space:
mode:
authorUlrich Drepper <drepper@redhat.com>1996-12-02 04:00:15 +0000
committerUlrich Drepper <drepper@redhat.com>1996-12-02 04:00:15 +0000
commite4cf5070694529a8779d5e1581567bcfb9307da0 (patch)
treea0ea63fe9d81e75431c6c37340810c850e53c736 /sysdeps/unix/sysv/linux/gethostid.c
parenta401eea9eb827caa393c3206fa6f3939ea067e94 (diff)
downloadglibc-e4cf5070694529a8779d5e1581567bcfb9307da0.tar
glibc-e4cf5070694529a8779d5e1581567bcfb9307da0.tar.gz
glibc-e4cf5070694529a8779d5e1581567bcfb9307da0.tar.bz2
glibc-e4cf5070694529a8779d5e1581567bcfb9307da0.zip
update from main archive 961201cvs/libc-961202
Mon Dec 2 03:59:38 1996 Ulrich Drepper <drepper@cygnus.com> * grp/initgroups.c: Update and reformat copyright. Use __getgrent_r instead of getgrent. * inet/rcmd.c: Update and reformat copyright. Use __gethostbyname_r instead of gethostbyname. * inet/rexec.c: Likewise. * intl/finddomain.c: Correct comment about CEN sponsor and revision. * locale/findlocale.c: Likewise. * intl/l10nflist.c: Correct handling of CEN sponsor and revision. * locale/Makefile (CPPFLAGS): Add definition of LOCALEDIR. * locale/setlocale.c (setlocale): Correctly split value of LOCALE_PATH. * locale/programs/localedef.c: Use LOCALEDIR not LOCALE_PATH to find output directory. * nss/getXXbyYY.c [NEED_H_ERRNO]: Before enlarging buffer test h_errno_tmp variable. Save error value from being changed during `free' call. * nss/getXXent.c: Likewise. * nss/nss_files/files-XXX.c: Set h_errno variable to NETDB_INTERNAL before returning ERANGE error. * posix/glob.c: Use getlogin_r and getpwnam_r function when available or in GNU libc. * pwd/getpw.c: Use getpwuid_r instead of getpwuid. * sunrpc/clnt_gen.c: Use gethostbyname_r and getprotobyname_r. * sunrpc/clnt_simp.c: Likewise. * sunrpc/getrpcport.c: Likewise. * sysdeps/unix/sysv/linux/gethostid.c: Likewise. * posix/getconf.c: Treat _SC_UNIT_MAX and _SC_ULONG_MAX separately since the value might be outsode the range of the `long int'. Print string `undefined' when a value is undefined. * stdlib/l64a.c: Return correct pointer. Patch by NIIBE Yutaka <gniibe@mri.co.jp>. * string/Makefile (routines): Add argz-addsep. * string/argz-addsep.c: New file. * string/argz.h: Add prototypes for argz_add_sep. * string/argz-ctsep.c: Prevent memory leak. * string/strcoll.c: Correct typo in comment. Sat Nov 30 02:53:59 1996 Ulrich Drepper <drepper@cygnus.com> * sysdeps/unix/sysv/linux/sys/serial.h: Removed again. The file is not general enough to be part of the libc. * sysdeps/unix/sysv/linux/Dist: Remove sys/serial.h. * sysdeps/unix/sysv/linux/Makefile: Don't install sys/serial.h. Thu Nov 28 20:04:41 1996 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * login/Makefile: Fix typo. * nss/Makefile (generated): Filter out db-alias.c. Thu Nov 28 14:44:01 1996 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * time/Makefile (echo-zonenames): Don't depend on non-existing target `zonenames'. Thu Nov 28 12:34:05 1996 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * link.h: New file. * nss/nsswitch.c: Use it. * printf.h: Fix file name. * stdlib/strfmon.c: Use it.
Diffstat (limited to 'sysdeps/unix/sysv/linux/gethostid.c')
-rw-r--r--sysdeps/unix/sysv/linux/gethostid.c54
1 files changed, 34 insertions, 20 deletions
diff --git a/sysdeps/unix/sysv/linux/gethostid.c b/sysdeps/unix/sysv/linux/gethostid.c
index ca2669d3e6..b313ab3409 100644
--- a/sysdeps/unix/sysv/linux/gethostid.c
+++ b/sysdeps/unix/sysv/linux/gethostid.c
@@ -1,20 +1,21 @@
/* Copyright (C) 1995, 1996 Free Software Foundation, Inc.
-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.
-
-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. */
-
+ 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.
+
+ 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 <fcntl.h>
#include <unistd.h>
@@ -58,9 +59,12 @@ long int
gethostid ()
{
char hostname[MAXHOSTNAMELEN + 1];
- struct hostent *hp;
- unsigned long id;
+ size_t buflen;
+ char *buffer;
+ struct hostent hostbuf, *hp;
+ unsigned long int id;
struct in_addr in;
+ int herr;
int fd;
/* First try to get the ID from a former invocation of sethostid. */
@@ -81,10 +85,20 @@ gethostid ()
/* This also fails. Return and arbitrary value. */
return 0;
+ buflen = 1024;
+ buffer = __alloca (buflen);
+
/* To get the IP address we need to know the host name. */
- hp = gethostbyname (hostname);
- if (hp == NULL)
- return 0;
+ while (__gethostbyname_r (hostname, &hostbuf, buffer, buflen, &hp, &herr)
+ < 0)
+ if (herr != NETDB_INTERNAL || errno != ERANGE)
+ return 0;
+ else
+ {
+ /* Enlarge buffer. */
+ buflen *= 2;
+ buffer = __alloca (buflen);
+ }
in.s_addr = 0;
memcpy (&in, hp->h_addr,