- (dtucker) [atomicio.c configure.ac openbsd-compat/Makefile.in
openbsd-compat/bsd-poll.{c,h} openbsd-compat/openbsd-compat.h]
Add an implementation of poll() built on top of select(2). Code from
OpenNTPD with changes suggested by djm. ok djm@
This commit is contained in:
Darren Tucker
parent
dc4a779fbb
commit
febf0f5668
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@ -25,6 +25,10 @@
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Include <poll.h> like the man page says rather than <sys/poll.h>. ok djm@
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- (dtucker) [atomicio.c] Test for EWOULDBLOCK in atomiciov to match
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atomicio.
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- (dtucker) [atomicio.c configure.ac openbsd-compat/Makefile.in
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openbsd-compat/bsd-poll.{c,h} openbsd-compat/openbsd-compat.h]
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Add an implementation of poll() built on top of select(2). Code from
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OpenNTPD with changes suggested by djm. ok djm@
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20070614
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- (dtucker) [cipher-ctr.c umac.c openbsd-compat/openssl-compat.h] Move the
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@ -3100,4 +3104,4 @@
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OpenServer 6 and add osr5bigcrypt support so when someone migrates
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passwords between UnixWare and OpenServer they will still work. OK dtucker@
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$Id: ChangeLog,v 1.4709 2007/06/25 12:08:10 dtucker Exp $
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$Id: ChangeLog,v 1.4710 2007/06/25 12:15:12 dtucker Exp $
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@ -32,7 +32,9 @@
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#include <sys/uio.h>
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#include <errno.h>
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#ifdef HAVE_POLL_H
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#include <poll.h>
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#endif
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#include <string.h>
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#include <unistd.h>
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@ -1,4 +1,4 @@
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# $Id: configure.ac,v 1.381 2007/06/11 04:15:43 djm Exp $
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# $Id: configure.ac,v 1.382 2007/06/25 12:15:12 dtucker Exp $
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#
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# Copyright (c) 1999-2004 Damien Miller
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#
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@ -15,7 +15,7 @@
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# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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AC_INIT(OpenSSH, Portable, openssh-unix-dev@mindrot.org)
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AC_REVISION($Revision: 1.381 $)
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AC_REVISION($Revision: 1.382 $)
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AC_CONFIG_SRCDIR([ssh.c])
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AC_CONFIG_HEADER(config.h)
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@ -205,6 +205,7 @@ AC_CHECK_HEADERS( \
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netgroup.h \
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pam/pam_appl.h \
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paths.h \
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poll.h \
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pty.h \
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readpassphrase.h \
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rpc/types.h \
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@ -1267,6 +1268,7 @@ AC_CHECK_FUNCS( \
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ogetaddrinfo \
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openlog_r \
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openpty \
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poll \
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prctl \
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pstat \
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readpassphrase \
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@ -1,4 +1,4 @@
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# $Id: Makefile.in,v 1.40 2006/08/30 17:24:41 djm Exp $
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# $Id: Makefile.in,v 1.41 2007/06/25 12:15:13 dtucker Exp $
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sysconfdir=@sysconfdir@
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piddir=@piddir@
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@ -18,7 +18,7 @@ LDFLAGS=-L. @LDFLAGS@
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OPENBSD=base64.o basename.o bindresvport.o daemon.o dirname.o getcwd.o getgrouplist.o getopt.o getrrsetbyname.o glob.o inet_aton.o inet_ntoa.o inet_ntop.o mktemp.o readpassphrase.o realpath.o rresvport.o setenv.o setproctitle.o sha2.o sigact.o strlcat.o strlcpy.o strmode.o strsep.o strtonum.o strtoll.o strtoul.o vis.o
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COMPAT=bsd-arc4random.o bsd-asprintf.o bsd-closefrom.o bsd-cray.o bsd-cygwin_util.o bsd-getpeereid.o bsd-misc.o bsd-nextstep.o bsd-openpty.o bsd-snprintf.o bsd-waitpid.o fake-rfc2553.o openssl-compat.o xmmap.o xcrypt.o
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COMPAT=bsd-arc4random.o bsd-asprintf.o bsd-closefrom.o bsd-cray.o bsd-cygwin_util.o bsd-getpeereid.o bsd-misc.o bsd-nextstep.o bsd-openpty.o bsd-poll.o bsd-snprintf.o bsd-waitpid.o fake-rfc2553.o openssl-compat.o xmmap.o xcrypt.o
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PORTS=port-aix.o port-irix.o port-linux.o port-solaris.o port-tun.o port-uw.o
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@ -0,0 +1,117 @@
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/* $Id: bsd-poll.c,v 1.1 2007/06/25 12:15:13 dtucker Exp $ */
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/*
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* Copyright (c) 2004, 2005, 2007 Darren Tucker (dtucker at zip com au).
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include "includes.h"
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#if !defined(HAVE_POLL) && defined(HAVE_SELECT)
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#ifdef HAVE_SYS_SELECT_H
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# include <sys/select.h>
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#endif
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#include <errno.h>
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#include "bsd-poll.h"
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/*
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* A minimal implementation of poll(2), built on top of select(2).
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*
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* Only supports POLLIN and POLLOUT flags in pfd.events, and POLLIN, POLLOUT
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* and POLLERR flags in revents.
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*
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* Supports pfd.fd = -1 meaning "unused" although it's not standard.
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*/
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int
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poll(struct pollfd *fds, nfds_t nfds, int timeout)
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{
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nfds_t i;
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int saved_errno, ret, fd, maxfd = 0;
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fd_set *readfds = NULL, *writefds = NULL, *exceptfds = NULL;
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size_t nmemb;
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struct timeval tv, *tvp = NULL;
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for (i = 0; i < nfds; i++) {
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if (fd >= FD_SETSIZE) {
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errno = EINVAL;
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return -1;
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}
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maxfd = MAX(maxfd, fds[i].fd);
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}
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nmemb = howmany(maxfd + 1 , NFDBITS);
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if ((readfds = calloc(nmemb, sizeof(fd_mask))) == NULL ||
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(writefds = calloc(nmemb, sizeof(fd_mask))) == NULL ||
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(exceptfds = calloc(nmemb, sizeof(fd_mask))) == NULL) {
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saved_errno = ENOMEM;
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ret = -1;
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goto out;
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}
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/* populate event bit vectors for the events we're interested in */
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for (i = 0; i < nfds; i++) {
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fd = fds[i].fd;
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if (fd == -1)
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continue;
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if (fds[i].events & POLLIN) {
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FD_SET(fd, readfds);
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FD_SET(fd, exceptfds);
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}
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if (fds[i].events & POLLOUT) {
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FD_SET(fd, writefds);
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FD_SET(fd, exceptfds);
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}
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}
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/* poll timeout is msec, select is timeval (sec + usec) */
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if (timeout >= 0) {
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tv.tv_sec = timeout / 1000;
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tv.tv_usec = (timeout % 1000) * 1000;
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tvp = &tv;
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}
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ret = select(maxfd + 1, readfds, writefds, exceptfds, tvp);
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saved_errno = errno;
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/* scan through select results and set poll() flags */
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for (i = 0; i < nfds; i++) {
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fd = fds[i].fd;
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fds[i].revents = 0;
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if (fd == -1)
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continue;
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if (FD_ISSET(fd, readfds)) {
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fds[i].revents |= POLLIN;
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}
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if (FD_ISSET(fd, writefds)) {
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fds[i].revents |= POLLOUT;
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}
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if (FD_ISSET(fd, exceptfds)) {
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fds[i].revents |= POLLERR;
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}
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}
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out:
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if (readfds != NULL)
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free(readfds);
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if (writefds != NULL)
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free(writefds);
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if (exceptfds != NULL)
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free(exceptfds);
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if (ret == -1)
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errno = saved_errno;
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return ret;
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}
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#endif
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@ -0,0 +1,61 @@
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/* $OpenBSD: poll.h,v 1.11 2003/12/10 23:10:08 millert Exp $ */
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/*
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* Copyright (c) 1996 Theo de Raadt
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/* OPENBSD ORIGINAL: sys/sys/poll.h */
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#if !defined(HAVE_POLL) && !defined(HAVE_POLL_H)
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#ifndef _COMPAT_POLL_H_
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#define _COMPAT_POLL_H_
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typedef struct pollfd {
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int fd;
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short events;
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short revents;
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} pollfd_t;
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typedef unsigned int nfds_t;
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#define POLLIN 0x0001
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#define POLLOUT 0x0004
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#define POLLERR 0x0008
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#if 0
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/* the following are currently not implemented */
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#define POLLPRI 0x0002
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#define POLLHUP 0x0010
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#define POLLNVAL 0x0020
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#define POLLRDNORM 0x0040
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#define POLLNORM POLLRDNORM
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#define POLLWRNORM POLLOUT
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#define POLLRDBAND 0x0080
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#define POLLWRBAND 0x0100
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#endif
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#define INFTIM (-1) /* not standard */
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int poll(struct pollfd *, nfds_t, int);
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#endif /* !_COMPAT_POLL_H_ */
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#endif /* !HAVE_POLL_H */
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@ -1,4 +1,4 @@
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/* $Id: openbsd-compat.h,v 1.42 2006/09/03 12:44:50 dtucker Exp $ */
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/* $Id: openbsd-compat.h,v 1.43 2007/06/25 12:15:13 dtucker Exp $ */
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/*
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* Copyright (c) 1999-2003 Damien Miller. All rights reserved.
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@ -140,6 +140,7 @@ int writev(int, struct iovec *, int);
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/* Home grown routines */
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#include "bsd-misc.h"
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#include "bsd-waitpid.h"
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#include "bsd-poll.h"
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#ifndef HAVE_GETPEEREID
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int getpeereid(int , uid_t *, gid_t *);
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