glibc/nss/nss_files/files-hosts.c

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Tue Jun 25 02:59:11 1996 Roland McGrath <roland@delasyd.gnu.ai.mit.edu> * malloc/malloc.h: Declare malloc_object_allocated_size, malloc_walk. * malloc/Makefile (dist-routines): Add malloc-size, malloc-walk. * malloc/malloc-size.c: New file. * malloc/malloc-walk.c: New file. * malloc/malloc-find.c (malloc_find_object_address): Return null if PTR is outside the heap. * elf/dl-load.c (_dl_map_object): If the requested name matches the soname of a loaded object, use that object. Mon Jun 24 19:57:01 1996 Roland McGrath <roland@delasyd.gnu.ai.mit.edu> * Makefile (subdirs): Add nss. * inet/Makefile (routines): Add getrpcent, getrpcbyname, getrpcbynumber, getrpcent_r, getrpcbyname_r, getrpcbynumber_r. * inet/getrpcbynumber_r.c: New file. * inet/getrpcbynumber.c: New file. * inet/getrpcbyname.c: New file. * inet/getrpcbyname_r.c: New file. * inet/getrpcent_r.c: New file. * inet/getrpcent.c: New file. * nss/rpc-lookup.c: New file. * nss/nss_files/files-rpc.c: New file. * nss/Makefile (routines): Add rpc-lookup. (libnss_files-routines): Add files-rpc. * sunrpc/Makefile (routines): Remove getrpcent. * sunrpc/getrpcent.c: File removed. * nss/getXXent_r.c (REENTRANT_GETNAME): Clear NO_MORE when NIP is non-null on entry. * Makeconfig (rpath-link): Add $(nssobjdir). (nssobjdir): New variable. * Makerules: Move shared library building before objects rules, so versions are known before extra-lib.mk gets included. * extra-lib.mk (lib-noranlib): Depend on the shared object too. * pwd/getpwuid.c: Rewritten using nss. * pwd/getpwnam.c: Likewise. * pwd/getpwent.c: Likewise. * grp/getgrnam.c: Likewise. * grp/getgrgid.c: Likewise. * grp/getgrent.c: Likewise. * pwd/Makefile (routines): Add getpwent_r, getpwnam_r, getpwuid_r. * pwd/getpwent_r.c: New file. * pwd/getpwnam_r.c: New file. * pwd/getpwuid_r.c: New file. * grp/Makefile (routines): Add getgrent_r, getgrgid_r, getgrnam_r. * grp/getgrnam_r.c: New file. * grp/getgrgid_r.c: New file. * grp/getgrent_r.c: New file. * grp/Makefile (routines): Remove grpopen, grpread. * pwd/Makefile (routines): Remove pwdopen, pwdread. * grp/grpopen.c, grp/grpread.c, pwd/pwdopen.c, pwd/pwdread.c: Removed. * pwd/fgetpwent.c: Rewritten using files-parse.c. * grp/fgetgrent.c: Likewise. * nss/Makefile (routines): Add grp-lookup and pwd-lookup. * nss/pwd-lookup.c, nss/grp-lookup.c: New files. * nss/nss_files/files-grp.c: New file. * nss/nss_files/files-pwd.c: New file. * nss/Makefile (subdir-dirs): New variable; use it in vpath. * nss/nss_files/files-parse.c: New file. * nss/nss_files/files-XXX.c: New file. * nss/nss_files/files-hosts.c, nss/nss_files/files-proto.c, nss/nss_files/files-service.c, nss/nss_files/files-network.c: Rewritten using them. * nss/Makefile (libnss_files-routines): Remove files-host. Add files-hosts, files-grp, files-pwd. * nss/nss_dns/dns-network.c: Don't include <pthread.h>. Mon Jun 24 22:39:12 1996 Richard Henderson <rth@tamu.edu> * sysdeps/alpha/dl-machine.h (ELF_MACHINE_RUNTIME_TRAMPOLINE): A .plt entry now loads the .rela.plt offset directly rather than making us calculate it. Sun Jun 23 15:24:05 1996 Roland McGrath <roland@delasyd.gnu.ai.mit.edu> * time/Makefile ($(installed-localtime-file) rule): Do $(make-target-directory) first. * resolv.h: Fix wrapper for resolv/resolv.h. * configure.in (ld --no-whole-archive check): Use AC_TRY_COMMAND. Compile dummy file and pass -nostdlib -nostartfiles so as not to require installed libraries. * shlib-versions (*-*-*): Set libresolv=2, libnss_files=1, libnss_dns=1. Sun Jun 23 19:42:05 1996 Ulrich Drepper <drepper@cygnus.com> * resolv/netdb.h (_PATH_NSSWITCH_CONF): New macro. * inet/herrno.c: New file. * resolv/res_init.c: Remove res_hconf calls. * nss/Makefile, nss/XXX-lookup.c, nss/file-lookup.c, nss/getXXbyYY.c, nss/getXXbyYY_r.c, nss/getXXent.c, nss/getXXent_r.c, nss/host-lookup.c, nss/network-lookup.c, nss/nsswitch.c, nss/nsswitch.h, nss/proto-lookup.c, nss/service-lookup.c: New files. Implementation of name service switch, following the approach in Solaris. Interface specification and general structure inspired by Peter Eriksson <pen@lysator.liu.se>. * nss/nss_files/files-host.c, nss/nss_files/files-network.c, nss/nss_files/files-proto.c, nss/nss_files/files-service.c: Implementation of libnss_files.so module for file based databases in NSS service. * nss/nss_dns/dns-host.c, nss/nss_dns/dns-network.c: Implementation if libnss_dns.so module for DNS name lookup in NSS service. * inet/getproto.c, inet/getprtent.c, inet/getprtname.c, inet/getservent.c, inet/getsrvbynm.c, inet/getsrvbypt.c: Changed to serve as interface to NSS. * inet/gethstbyad.c, inet/gethstbyad_r.c, inet/gethstbynm.c, inet/gethstbynm2.c, inet/gethstbynm2_r.c, inet/gethstbynm_r.c, inet/gethstent.c, inet/gethstent_r.c, inet/getnetbynm.c, inet/getnetbynm_r.c, inet/getnetbypt.c, inet/getnetbypt_r.c, inet/getnetent.c, inet/getnetent_r.c, inet/getproto_r.c, inet/getprtent_r.c, inet/getprtname_r.c, inet/getservent_r.c, inet/getsrvbynm_r.c, inet/getsrvbypt_r.c: New files. Implement interfaces to NSS, including reentrant functions. * resolv/getnetbyaddr.c, resolv/getnetbyname.c, resolv/getnetent.c, resolv/sethostent.c: Removed: Obsoleted by NSS. * resolv/mapv4v6addr.h, resolv/mapv4v6hostent.h: Extracted from gethnamaddr.c. These private functions are now used in more than one file. * resolv/inet_pton.c, resolv/gethnamaddr.c: Updated to bind-4.9.4-T5B. Sat Jun 22 16:49:47 1996 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * rpm/Makefile ($(config)): Make sure the word list in the for loop is syntactically non-empty.
1996-06-25 16:56:57 +08:00
/* Hosts file parser in nss_files module.
Copyright (C) 1996 Free Software Foundation, Inc.
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 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. */
#include <netinet/in.h>
#include <arpa/inet.h>
#include <arpa/nameser.h>
#include <netdb.h>
#include <resolv.h>
/* Get implementation for some internal functions. */
#include "../resolv/mapv4v6addr.h"
#include "../resolv/mapv4v6hostent.h"
#define ENTNAME hostent
#define DATAFILE _PATH_HOSTS
struct hostent_data
{
unsigned char host_addr[16]; /* IPv4 or IPv6 address. */
char *h_addr_ptrs[2]; /* Points to that and null terminator. */
};
#define TRAILING_LIST_MEMBER h_aliases
#define TRAILING_LIST_SEPARATOR_P isspace
#include "files-parse.c"
LINE_PARSER
({
char *addr;
STRING_FIELD (addr, isspace, 1);
/* Parse address. */
if ((_res.options & RES_USE_INET6)
&& inet_pton (AF_INET6, addr, entdata->host_addr) > 0)
{
result->h_addrtype = AF_INET6;
result->h_length = IN6ADDRSZ;
}
else if (inet_pton (AF_INET, addr, entdata->host_addr) > 0)
{
if (_res.options & RES_USE_INET6)
{
map_v4v6_address ((char *) entdata->host_addr,
(char *) entdata->host_addr);
result->h_addrtype = AF_INET6;
result->h_length = IN6ADDRSZ;
}
else
{
result->h_addrtype = AF_INET;
result->h_length = INADDRSZ;
}
}
else
/* Illegal address: ignore line. */
return 0;
/* Store a pointer to the addressin the expected form. */
entdata->h_addr_ptrs[0] = entdata->host_addr;
entdata->h_addr_ptrs[1] = NULL;
result->h_addr_list = entdata->h_addr_ptrs;
/* If we need the host entry in IPv6 form change it now. */
if (_res.options & RES_USE_INET6)
{
char *bufptr = data->linebuffer;
int buflen = (char *) data + datalen - bufptr;
map_v4v6_hostent (result, &bufptr, &buflen);
}
STRING_FIELD (result->h_name, isspace, 1);
})
#include "files-XXX.c"
DB_LOOKUP (hostbyname,
{
char **ap;
if (! strcmp (name, result->h_name))
break;
for (ap = result->h_aliases; *ap; ++ap)
if (! strcmp (name, *ap))
break;
if (*ap)
break;
}, const char *name)
DB_LOOKUP (hostbyaddr,
{
if (result->h_addrtype == type && result->h_length == len &&
! memcmp (addr, result->h_addr_list[0], len))
break;
}, const char *addr, int len, int type)