d201fe46e3
adding (weak definitions to) stubs for some of the pthread functions. If the threads library is linked in, the real pthread functions will pulled in. Use the following convention for system calls wrapped by the threads library: __sys_foo - actual system call _foo - weak definition to __sys_foo foo - weak definition to __sys_foo Change all libc uses of system calls wrapped by the threads library from foo to _foo. In order to define the prototypes for _foo(), we introduce namespace.h and un-namespace.h (suggested by bde). All files that need to reference these system calls, should include namespace.h before any standard includes, then include un-namespace.h after the standard includes and before any local includes. <db.h> is an exception and shouldn't be included in between namespace.h and un-namespace.h namespace.h will define foo to _foo, and un-namespace.h will undefine foo. Try to eliminate some of the recursive calls to MT-safe functions in libc/stdio in preparation for adding a mutex to FILE. We have recursive mutexes, but would like to avoid using them if possible. Remove uneeded includes of <errno.h> from a few files. Add $FreeBSD$ to a few files in order to pass commitprep. Approved by: -arch
115 lines
3.3 KiB
C
115 lines
3.3 KiB
C
/*
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* Sun RPC is a product of Sun Microsystems, Inc. and is provided for
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* unrestricted use provided that this legend is included on all tape
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* media and as a part of the software program in whole or part. Users
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* may copy or modify Sun RPC without charge, but are not authorized
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* to license or distribute it to anyone else except as part of a product or
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* program developed by the user.
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*
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* SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
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* WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
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*
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* Sun RPC is provided with no support and without any obligation on the
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* part of Sun Microsystems, Inc. to assist in its use, correction,
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* modification or enhancement.
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*
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* SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
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* INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
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* OR ANY PART THEREOF.
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*
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* In no event will Sun Microsystems, Inc. be liable for any lost revenue
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* or profits or other special, indirect and consequential damages, even if
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* Sun has been advised of the possibility of such damages.
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*
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* Sun Microsystems, Inc.
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* 2550 Garcia Avenue
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* Mountain View, California 94043
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*/
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#if defined(LIBC_SCCS) && !defined(lint)
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/*static char *sccsid = "from: @(#)get_myaddress.c 1.4 87/08/11 Copyr 1984 Sun Micro";*/
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/*static char *sccsid = "from: @(#)get_myaddress.c 2.1 88/07/29 4.0 RPCSRC";*/
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static char *rcsid = "$FreeBSD$";
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#endif
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/*
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* get_myaddress.c
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*
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* Get client's IP address via ioctl. This avoids using the yellowpages.
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* Copyright (C) 1984, Sun Microsystems, Inc.
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*/
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#include "namespace.h"
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#include <rpc/types.h>
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#include <rpc/xdr.h>
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#include <rpc/pmap_prot.h>
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#include <sys/socket.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <net/if.h>
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#include <sys/ioctl.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#include "un-namespace.h"
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/*
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* don't use gethostbyname, which would invoke yellow pages
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*
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* Avoid loopback interfaces. We return information from a loopback
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* interface only if there are no other possible interfaces.
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*/
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int
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get_myaddress(addr)
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struct sockaddr_in *addr;
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{
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int s;
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char buf[BUFSIZ];
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struct ifconf ifc;
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struct ifreq ifreq, *ifr, *end;
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int loopback = 0, gotit = 0;
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if ((s = _socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
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return(-1);
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}
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ifc.ifc_len = sizeof (buf);
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ifc.ifc_buf = buf;
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if (_ioctl(s, SIOCGIFCONF, (char *)&ifc) < 0) {
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_close(s);
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return(-1);
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}
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again:
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ifr = ifc.ifc_req;
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end = (struct ifreq *) (ifc.ifc_buf + ifc.ifc_len);
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while (ifr < end) {
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memcpy(&ifreq, ifr, sizeof(ifreq));
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if (_ioctl(s, SIOCGIFFLAGS, (char *)&ifreq) < 0) {
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_close(s);
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return(-1);
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}
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if (((ifreq.ifr_flags & IFF_UP) &&
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ifr->ifr_addr.sa_family == AF_INET &&
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!(ifreq.ifr_flags & IFF_LOOPBACK)) ||
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(loopback == 1 && (ifreq.ifr_flags & IFF_LOOPBACK)
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&& (ifr->ifr_addr.sa_family == AF_INET)
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&& (ifreq.ifr_flags & IFF_UP))) {
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*addr = *((struct sockaddr_in *)&ifr->ifr_addr);
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addr->sin_port = htons(PMAPPORT);
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gotit = 1;
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break;
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}
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if (ifr->ifr_addr.sa_len)
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ifr = (struct ifreq *) ((caddr_t) ifr +
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ifr->ifr_addr.sa_len -
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sizeof(struct sockaddr));
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ifr++;
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}
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if (gotit == 0 && loopback == 0) {
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loopback = 1;
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goto again;
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}
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(void)_close(s);
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return (gotit ? 0 : -1);
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}
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