diff options
Diffstat (limited to 'sunrpc/bindrsvprt.c')
-rw-r--r-- | sunrpc/bindrsvprt.c | 110 |
1 files changed, 0 insertions, 110 deletions
diff --git a/sunrpc/bindrsvprt.c b/sunrpc/bindrsvprt.c deleted file mode 100644 index da33c05101..0000000000 --- a/sunrpc/bindrsvprt.c +++ /dev/null @@ -1,110 +0,0 @@ -/* - * Copyright (c) 2010, Oracle America, Inc. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are - * met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above - * copyright notice, this list of conditions and the following - * disclaimer in the documentation and/or other materials - * provided with the distribution. - * * Neither the name of the "Oracle America, Inc." nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS - * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE - * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, - * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE - * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, - * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING - * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -#include <errno.h> -#include <unistd.h> -#include <string.h> -#include <sys/types.h> -#include <sys/socket.h> -#include <netinet/in.h> -#include <libc-lock.h> - -/* - * Locks the static variables in this file. - */ -__libc_lock_define_initialized (static, lock); - -/* - * Bind a socket to a privileged IP port - */ -int -bindresvport (int sd, struct sockaddr_in *sin) -{ - static short port; - struct sockaddr_in myaddr; - int i; - -#define STARTPORT 600 -#define LOWPORT 512 -#define ENDPORT (IPPORT_RESERVED - 1) -#define NPORTS (ENDPORT - STARTPORT + 1) - static short startport = STARTPORT; - - if (sin == (struct sockaddr_in *) 0) - { - sin = &myaddr; - memset (sin, 0, sizeof (*sin)); - sin->sin_family = AF_INET; - } - else if (sin->sin_family != AF_INET) - { - __set_errno (EAFNOSUPPORT); - return -1; - } - - if (port == 0) - { - port = (__getpid () % NPORTS) + STARTPORT; - } - - /* Initialize to make gcc happy. */ - int res = -1; - - int nports = ENDPORT - startport + 1; - int endport = ENDPORT; - - __libc_lock_lock (lock); - - again: - for (i = 0; i < nports; ++i) - { - sin->sin_port = htons (port++); - if (port > endport) - port = startport; - res = __bind (sd, sin, sizeof (struct sockaddr_in)); - if (res >= 0 || errno != EADDRINUSE) - break; - } - - if (i == nports && startport != LOWPORT) - { - startport = LOWPORT; - endport = STARTPORT - 1; - nports = STARTPORT - LOWPORT; - port = LOWPORT + port % (STARTPORT - LOWPORT); - goto again; - } - - __libc_lock_unlock (lock); - - return res; -} -libc_hidden_def (bindresvport) |