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authorUlrich Drepper <drepper@redhat.com>1997-07-28 22:35:20 +0000
committerUlrich Drepper <drepper@redhat.com>1997-07-28 22:35:20 +0000
commit3996f34b46043ed8ea8fdc6f44377d969d64396b (patch)
tree563f433dab9b5299d81ced72885bf1e8c29b9159 /nis/nis_findserv.c
parent0a54e4010fe0085cd36deaff9442a7e88de3270d (diff)
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1997-07-28 23:35 Ulrich Drepper <drepper@cygnus.com> * csu/gmon-start.c (__gmon_start__): Call __monstartup not monstartup. * gmon/gmon.c: Rename moncontrol to __moncontrol and monstartup to __monstartup. * gmon/sys/gmon.h: Fix prototypes. * gmon/sys/gmon_out.h: Pretty print. * gmon/bb_exit_func.c (__bb_exit_func): Use memcpy instead of bcopy. * gmon/gmon.c (__monstartup): Likewise. (write_hist): Remove dependency on 32 int. (_mcleanup): Don't call perror, use fprintf. * elf/dl-load.c: Fix handling of current directory in search path. * elf/Makefile (dl-routines): Add dl-profile. * elf/dl-profile.c: New file. * elf/dl-runtime.c (fixup): Add new parameter with address to store relocation result in to elf_machine_relplt. (profile_fixup): New function. * elf/do-rel.h (elf_dynamic_do_rel): Add new parameter with address to store relocation result in to elf_machine_relplt. * elf/dl-support.c: Define _dl_profile and _dl_profile_map. * elf/dynamic-link.h (ELF_DYNAMIC_RELOCATE): Add new parameter and call elf_machine_runtime_setup with extra argument. * elf/dl-reloc.c (_dl_relocate_object): Add new argument to ELF_DYNAMIC_RELOCATE. * elf/link.h: Add prototypes for new functions and variables. * elf/rtld.c: Parse LD_PROFILE and LD_PROFILE_OUTPUT environment variables and call _dl_start_profile if necessary. * include/sys/gmon_out.h: New file. * sysdeps/alpha/dl-machine.h (elf_machine_runtime_setup): Add new parameter to enable profiling. (elf_machine_rela): Add new parameter to specify place to store result in. * sysdeps/m68k/dl-machine.h: Likewise. * sysdeps/mips/dl-machine.h: Likewise. * sysdeps/mips/mips64/dl-machine.h: Likewise. * sysdeps/powerpc/dl-machine.h: Likewise. * sysdeps/sparc/dl-machine.h: Likewise. * sysdeps/sparc64/dl-machine.h: Likewise. * sysdeps/i386/dl-machine.h: Likewise. (elf_machine_runtime_setup): Setup got[2] to _dl_runtime_resolve if we do profiling. (ELF_MACHINE_RUNTIME_TRAMPOLINE): Add code for _dl_runtime_profile. * nis/nss_compat/compat-grp.c (internal_setgrent): Set FD_CLOEXEC for stream on input file. * nis/nss_compat/compat-pwd.c (internal_setpwent): Likewise. * nis/nss_compat/compat-spwd.c (internal_setspent): Likewise. * nss/nss_db/db-XXX.c (internal_setent): Likewise. * nss/nss_db/db-alias.c (internal_setent): Likewise. * nss/nss_db/db-netgrp.c (internal_setent): Likewise. * nss/nss_files/files-XXX.c (internal_setent): Likewise. * nss/nss_files/files-alias.c (internal_setent): Likewise. * nss/nss_files/files-netgrp.c (internal_setent): Likewise. * string/string.h: Pretty print. * sysdeps/i386/fpu/bits/mathinline.h: Major update by John Bowman. Add float and long double versions. 1997-07-27 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * elf/rtld.c (print_unresolved): Replace empty object name by main program name. 1997-07-27 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * sysdeps/generic/htons.c (htons): Renamed from __htons. 1997-07-27 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * sysdeps/m68k/bits/byteswap.h: New file. 1997-07-27 23:50 Philip Blundell <Philip.Blundell@pobox.com> * inet/netinet/icmp6.h: Update for new drafts of POSIX.1g and IPv6 advanced API. * inet/netinet/in.h: Likewise. * inet/netinet/ip6.h: Likewise. * sysdeps/unix/sysv/linux/bits/socket.h: Likewise. * posix/sys/types.h: Add socklen_t. * manual/socket.texi: Document some more IPv6 things. * manual/libc.texinfo: Likewise. 1997-07-26 Andreas Jaeger <aj@arthur.rhein-neckar.de> * libc.map: Define missing symbol. 1997-07-27 14:31 Thorsten Kukuk <kukuk@vt.uni-paderborn.de> * nis/Makefile: Add nis_findserv. * nis/lckcache.c: Fix typo. * nis/nis_call.c: Fix problems with multihomed servers. * nis/nis_findserv.c: New file. * nis/nis_intern.h: Add more prototypes. * nis/nis_lookup.c (nis_lookup): Don't try the next server if network is unreachable. * nis/nis_table.c (nis_list): Likewise. * nis/nis_ping.c (nis_ping): Use MASTER_ONLY, don't call abort() in error case. * nis/nis_util.c (__nis_finddirectory): Give the right error code back. * nis/ypclnt.c: Make sure, that all sockets are closed.
Diffstat (limited to 'nis/nis_findserv.c')
-rw-r--r--nis/nis_findserv.c251
1 files changed, 251 insertions, 0 deletions
diff --git a/nis/nis_findserv.c b/nis/nis_findserv.c
new file mode 100644
index 0000000..a04abd8
--- /dev/null
+++ b/nis/nis_findserv.c
@@ -0,0 +1,251 @@
+/* Copyright (C) 1997 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1997.
+
+ 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 <string.h>
+#include <unistd.h>
+#include <sys/ioctl.h>
+#include <rpc/pmap_prot.h>
+#include <rpc/pmap_clnt.h>
+#include <rpcsvc/nis.h>
+
+#include "nis_intern.h"
+
+/* Private data kept per client handle, from sunrpc/clnt_udp.c */
+struct cu_data
+ {
+ int cu_sock;
+ bool_t cu_closeit;
+ struct sockaddr_in cu_raddr;
+ int cu_rlen;
+ struct timeval cu_wait;
+ struct timeval cu_total;
+ struct rpc_err cu_error;
+ XDR cu_outxdrs;
+ u_int cu_xdrpos;
+ u_int cu_sendsz;
+ char *cu_outbuf;
+ u_int cu_recvsz;
+ char cu_inbuf[1];
+ };
+
+
+/* The following is the original routine from sunrpc/pm_getport.c.
+ The only change is the much shorter timeout. */
+/*
+ * pmap_getport.c
+ * Client interface to pmap rpc service.
+ *
+ * Copyright (C) 1984, Sun Microsystems, Inc.
+ */
+
+/*
+ * Find the mapped port for program,version.
+ * Calls the pmap service remotely to do the lookup.
+ * Returns 0 if no map exists.
+ */
+static u_short
+__pmap_getport (struct sockaddr_in *address, u_long program,
+ u_long version, u_int protocol)
+{
+ const struct timeval timeout = {1, 0};
+ const struct timeval tottimeout = {1, 0};
+ u_short port = 0;
+ int socket = -1;
+ CLIENT *client;
+ struct pmap parms;
+
+ address->sin_port = htons (PMAPPORT);
+ client = clntudp_bufcreate (address, PMAPPROG, PMAPVERS, timeout, &socket,
+ RPCSMALLMSGSIZE, RPCSMALLMSGSIZE);
+ if (client != (CLIENT *) NULL)
+ {
+ parms.pm_prog = program;
+ parms.pm_vers = version;
+ parms.pm_prot = protocol;
+ parms.pm_port = 0; /* not needed or used */
+ if (CLNT_CALL (client, PMAPPROC_GETPORT, (xdrproc_t) xdr_pmap,
+ (caddr_t) & parms, (xdrproc_t) xdr_u_short,
+ (caddr_t) & port, tottimeout) != RPC_SUCCESS)
+ {
+ rpc_createerr.cf_stat = RPC_PMAPFAILURE;
+ clnt_geterr (client, &rpc_createerr.cf_error);
+ }
+ else if (port == 0)
+ {
+ rpc_createerr.cf_stat = RPC_PROGNOTREGISTERED;
+ }
+ CLNT_DESTROY (client);
+ }
+ /* (void)close(socket); CLNT_DESTROY already closed it */
+ address->sin_port = 0;
+ return port;
+}
+
+/* Transmit to NULLPROC, return immediately. */
+static void *
+nis_null_3_send (void *argp, CLIENT * clnt)
+{
+ static char clnt_res;
+ struct timeval TIMEOUT = {0, 0};
+
+ memset ((char *) &clnt_res, 0, sizeof (clnt_res));
+ if (clnt_call (clnt, NULLPROC,
+ (xdrproc_t) xdr_void, (caddr_t) argp,
+ (xdrproc_t) xdr_void, (caddr_t) & clnt_res,
+ TIMEOUT) != RPC_SUCCESS)
+ return NULL;
+ return (void *) &clnt_res;
+}
+
+/* Receive request from NULLPROC asynchronously. */
+static void *
+nis_null_3_recv (void *argp, CLIENT * clnt)
+{
+ static char clnt_res;
+ struct timeval TIMEOUT = {0, 0};
+
+ memset ((char *) &clnt_res, 0, sizeof (clnt_res));
+ if (clnt_call (clnt, NULLPROC,
+ (xdrproc_t) NULL, (caddr_t) argp,
+ (xdrproc_t) xdr_void, (caddr_t) & clnt_res,
+ TIMEOUT) != RPC_SUCCESS)
+ return NULL;
+ return (void *) &clnt_res;
+}
+
+/* This is now the public functions, which should find the fastest server */
+
+struct findserv_req
+{
+ struct sockaddr_in sin;
+ u_long xid;
+ u_int server_nr;
+ u_int server_ep;
+};
+
+long
+__nis_findfastest (dir_binding * bind)
+{
+ struct timeval TIMEOUT = {5, 0};
+ struct findserv_req **pings;
+ struct sockaddr_in sin;
+ int found = -1;
+ time_t xid_seed, xid_lookup;
+ int sock, dontblock = 1;
+ CLIENT *clnt;
+ void *foo = NULL;
+ u_long i, j, pings_count, pings_max;
+ struct cu_data *cu;
+
+ pings_max = bind->server_len * 2; /* Reserve a little bit more memory
+ for multihomed hosts */
+ pings_count = 0;
+ pings = malloc (sizeof (struct findserv_req *) * pings_max);
+ xid_seed = time (NULL) ^ getpid ();
+
+ memset (&sin, '\0', sizeof (sin));
+ sin.sin_family = AF_INET;
+ for (i = 0; i < bind->server_len; i++)
+ for (j = 0; j < bind->server_val[i].ep.ep_len; ++j)
+ if (strcmp (bind->server_val[i].ep.ep_val[j].family, "inet") == 0)
+ if (strcmp (bind->server_val[i].ep.ep_val[j].proto, "-") == 0)
+ {
+ sin.sin_addr.s_addr =
+ inetstr2int (bind->server_val[i].ep.ep_val[j].uaddr);
+ if (sin.sin_addr.s_addr == 0)
+ continue;
+ sin.sin_port = htons (__pmap_getport (&sin, NIS_PROG,
+ NIS_VERSION, IPPROTO_UDP));
+ if (sin.sin_port == 0)
+ continue;
+
+ if (pings_count >= pings_max)
+ {
+ pings_max += 10;
+ pings = realloc (pings, sizeof (struct findserv_req) *
+ pings_max);
+ }
+ pings[pings_count] = calloc (1, sizeof (struct findserv_req));
+ memcpy ((char *) &pings[pings_count]->sin, (char *) &sin,
+ sizeof (sin));
+ pings[pings_count]->xid = xid_seed;
+ pings[pings_count]->server_nr = i;
+ pings[pings_count]->server_ep = j;
+ ++xid_seed;
+ ++pings_count;
+ }
+
+ /* Make sure at least one server was assigned */
+ if (pings_count == 0)
+ {
+ free (pings);
+ return -1;
+ }
+
+ /* Create RPC handle */
+ sock = socket (AF_INET, SOCK_DGRAM, IPPROTO_UDP);
+ clnt = clntudp_create (&sin, NIS_PROG, NIS_VERSION, TIMEOUT, &sock);
+ if (clnt == NULL)
+ {
+ close (sock);
+ for (i = 0; i < pings_count; ++i)
+ free (pings[i]);
+ free (pings);
+ return -1;
+ }
+ clnt->cl_auth = authunix_create_default ();
+ cu = (struct cu_data *) clnt->cl_private;
+ TIMEOUT.tv_sec = 0;
+ clnt_control (clnt, CLSET_TIMEOUT, (char *) &TIMEOUT);
+ ioctl (sock, FIONBIO, &dontblock);
+
+ /* Send to all servers the NULLPROC */
+ for (i = 0; i < pings_count; ++i)
+ {
+ /* clntudp_call() will increment, subtract one */
+ *((u_int32_t *) (cu->cu_outbuf)) = pings[i]->xid - 1;
+ bcopy ((char *) &pings[i]->sin, (char *) &cu->cu_raddr,
+ sizeof (struct sockaddr_in));
+ nis_null_3_send (foo, clnt);
+ }
+
+ /* Receive reply */
+ nis_null_3_recv (foo, clnt);
+
+ xid_lookup = *((u_int32_t *) (cu->cu_inbuf));
+ for (i = 0; i < pings_count; i++)
+ {
+ if (pings[i]->xid == xid_lookup)
+ {
+ bind->server_used = pings[i]->server_nr;
+ bind->current_ep = pings[i]->server_ep;
+ found = 1;
+ }
+ }
+
+ auth_destroy (clnt->cl_auth);
+ clnt_destroy (clnt);
+ close (sock);
+
+ for (i = 0; i < pings_count; ++i)
+ free (pings[i]);
+ free (pings);
+
+ return found;
+}