diff options
Diffstat (limited to 'usr/src/cmd/lp/lib/msgs/streamio.c')
| -rw-r--r-- | usr/src/cmd/lp/lib/msgs/streamio.c | 172 |
1 files changed, 0 insertions, 172 deletions
diff --git a/usr/src/cmd/lp/lib/msgs/streamio.c b/usr/src/cmd/lp/lib/msgs/streamio.c deleted file mode 100644 index 58ce7a9871..0000000000 --- a/usr/src/cmd/lp/lib/msgs/streamio.c +++ /dev/null @@ -1,172 +0,0 @@ -/* - * CDDL HEADER START - * - * The contents of this file are subject to the terms of the - * Common Development and Distribution License, Version 1.0 only - * (the "License"). You may not use this file except in compliance - * with the License. - * - * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE - * or http://www.opensolaris.org/os/licensing. - * See the License for the specific language governing permissions - * and limitations under the License. - * - * When distributing Covered Code, include this CDDL HEADER in each - * file and include the License file at usr/src/OPENSOLARIS.LICENSE. - * If applicable, add the following below this CDDL HEADER, with the - * fields enclosed by brackets "[]" replaced with your own identifying - * information: Portions Copyright [yyyy] [name of copyright owner] - * - * CDDL HEADER END - */ -/* - * Copyright 1997 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. - */ - -/* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ -/* All Rights Reserved */ - - - -#pragma ident "%Z%%M% %I% %E% SMI" /* SVr4.0 1.2 */ - -#include <unistd.h> -#include <signal.h> -#include <stropts.h> -#include <errno.h> -#include "lp.h" -#include "msgs.h" - -extern int errno; - -/* - * Putmsg() function - * Return 0: success, - * non-zero: return code of the failed putmsg() system call. - * plus errno for caller to check. - * NOTE: cannot do TRACE* calls if errno is expected to be returned! - * TRACE* uses fprintf and destroys the content of errno. - * Save errno before the TRACE* calls. - */ - -int -Putmsg (MESG *mdp, strbuf_t *ctlp, strbuf_t *datap, int flags) -{ - int i; - int rtncode; - int count; - struct pollfd fds; - - fds.fd = mdp->writefd; - fds.events = POLLOUT; - fds.revents = 0; - - (void) poll(&fds, 1, 1000); - if (fds.revents & (POLLHUP | POLLERR | POLLNVAL)) { - errno = EBADF; - return (-1); - } - - if (!(fds.revents & POLLOUT)) { - errno = EAGAIN; - return (-1); - } - - rtncode = putmsg (mdp->writefd, ctlp, datap, flags); - return (rtncode); -} - -int -Getmsg (MESG *mdp, strbuf_t *ctlp, strbuf_t *datap, int *flagsp) -{ - int rtncode; - - rtncode = getmsg (mdp->readfd, ctlp, datap, flagsp); - return (rtncode); -} - -char AuthCode[HEAD_AUTHCODE_LEN]; -static void (*callers_sigpipe_trap)() = SIG_DFL; - - -/* -** Function: static int read3_2( MESG *, char *, int) -** Args: message descriptor -** message buffer (var) -** buffer size -** Return: 0 for sucess, -1 for failure -** -** This performs a 3.2 HPI style read_fifo on the pipe referanced -** in the message descriptor. If a message is found, it is returned -** in message buffer. -*/ -int read3_2 ( MESG * md, char *msgbuf, int size ) -{ - short type; - - if (md->type == MD_USR_FIFO) - (void) Close (Open(md->file, O_RDONLY, 0)); - - do - { - switch (read_fifo(md->readfd, msgbuf, size)) - { - case -1: - return (-1); - - case 0: - /* - ** The fifo was empty and we have O_NDELAY set, - ** or the Spooler closed our FIFO. - ** We don't set O_NDELAY in the user process, - ** so that should never happen. But be warned - ** that we can't tell the difference in some versions - ** of the UNIX op. sys.!! - ** - */ - errno = EPIPE; - return (-1); - } - - if ((type = stoh(msgbuf + HEAD_TYPE)) < 0 || LAST_MESSAGE < type) - { - errno = ENOMSG; - return (-1); - } - } - while (type == I_QUEUE_CHK); - - (void)memcpy (AuthCode, msgbuf + HEAD_AUTHCODE, HEAD_AUTHCODE_LEN); - - /* - ** Get the size from the 3.2 HPI message - ** minus the size of the control data - ** Copy the actual message - ** Reset the message size. - */ - size = stoh(msgbuf + HEAD_SIZE) - EXCESS_3_2_LEN; - memmove(msgbuf, msgbuf + HEAD_SIZE, size); - (void) htos(msgbuf + MESG_SIZE, size); - return(0); -} - -int write3_2 ( MESG * md, char * msgbuf, int size ) -{ - char tmpbuf [MSGMAX + EXCESS_3_2_LEN]; - int rval; - - - (void) memmove(tmpbuf + HEAD_SIZE, msgbuf, size); - (void) htos(tmpbuf + HEAD_SIZE, size + EXCESS_3_2_LEN); - (void) memcpy (tmpbuf + HEAD_AUTHCODE, AuthCode, HEAD_AUTHCODE_LEN); - - callers_sigpipe_trap = signal(SIGPIPE, SIG_IGN); - - rval = write_fifo(md->writefd, tmpbuf, size + EXCESS_3_2_LEN); - - (void) signal(SIGPIPE, callers_sigpipe_trap); - - - return (rval); -} |