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
146 lines
3.7 KiB
C
146 lines
3.7 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: @(#)bindresvport.c 1.8 88/02/08 SMI";*/
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/*static char *sccsid = "from: @(#)bindresvport.c 2.2 88/07/29 4.0 RPCSRC";*/
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/*from: OpenBSD: bindresvport.c,v 1.7 1996/07/30 16:25:47 downsj Exp */
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static char *rcsid = "$FreeBSD$";
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#endif
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/*
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* Copyright (c) 1987 by Sun Microsystems, Inc.
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*
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* Portions Copyright(C) 1996, Jason Downs. All rights reserved.
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*/
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#include "namespace.h"
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#include <sys/types.h>
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#include <sys/errno.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <unistd.h>
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#include <string.h>
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#include "un-namespace.h"
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/*
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* Bind a socket to a privileged IP port
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*/
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int
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bindresvport(sd, sin)
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int sd;
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struct sockaddr_in *sin;
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{
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return bindresvport_sa(sd, (struct sockaddr *)sin);
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}
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/*
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* Bind a socket to a privileged port for whatever protocol.
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*/
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int
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bindresvport_sa(sd, sa)
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int sd;
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struct sockaddr *sa;
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{
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int old, error, af;
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struct sockaddr_storage myaddr;
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struct sockaddr_in *sin;
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struct sockaddr_in6 *sin6;
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int proto, portrange, portlow;
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u_int16_t port;
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int salen;
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if (sa == NULL) {
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salen = sizeof(myaddr);
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sa = (struct sockaddr *)&myaddr;
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if (_getsockname(sd, sa, &salen) == -1)
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return -1; /* errno is correctly set */
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af = sa->sa_family;
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memset(&myaddr, 0, salen);
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} else
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af = sa->sa_family;
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if (af == AF_INET) {
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proto = IPPROTO_IP;
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portrange = IP_PORTRANGE;
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portlow = IP_PORTRANGE_LOW;
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sin = (struct sockaddr_in *)sa;
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salen = sizeof(struct sockaddr_in);
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port = sin->sin_port;
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} else if (af == AF_INET6) {
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proto = IPPROTO_IPV6;
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portrange = IPV6_PORTRANGE;
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portlow = IPV6_PORTRANGE_LOW;
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sin6 = (struct sockaddr_in6 *)sa;
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salen = sizeof(struct sockaddr_in6);
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port = sin6->sin6_port;
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} else {
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errno = EPFNOSUPPORT;
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return (-1);
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}
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sa->sa_family = af;
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sa->sa_len = salen;
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if (port == 0) {
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int oldlen = sizeof(old);
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error = _getsockopt(sd, proto, portrange, &old, &oldlen);
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if (error < 0)
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return (error);
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error = _setsockopt(sd, proto, portrange, &portlow,
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sizeof(portlow));
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if (error < 0)
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return (error);
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}
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error = _bind(sd, sa, salen);
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if (port == 0) {
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int saved_errno = errno;
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if (error) {
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if (_setsockopt(sd, proto, portrange, &old,
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sizeof(old)) < 0)
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errno = saved_errno;
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return (error);
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}
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if (sa != (struct sockaddr *)&myaddr) {
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/* Hmm, what did the kernel assign... */
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if (_getsockname(sd, sa, &salen) < 0)
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errno = saved_errno;
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return (error);
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}
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}
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return (error);
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}
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