usr/src/cmd/lp/lib/msgs/mcreate.c

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License, Version 1.0 only
   6  * (the "License").  You may not use this file except in compliance
   7  * with the License.
   8  *
   9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10  * or http://www.opensolaris.org/os/licensing.
  11  * See the License for the specific language governing permissions
  12  * and limitations under the License.
  13  *
  14  * When distributing Covered Code, include this CDDL HEADER in each
  15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16  * If applicable, add the following below this CDDL HEADER, with the
  17  * fields enclosed by brackets "[]" replaced with your own identifying
  18  * information: Portions Copyright [yyyy] [name of copyright owner]
  19  *
  20  * CDDL HEADER END
  21  */
  22 /*
  23  * Copyright 1996 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26
  27 /*      Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
  28 /*        All Rights Reserved   */
  29
  30
  31 #pragma ident   "%Z%%M% %I%     %E% SMI"        /* SVr4.0 1.7   */
  32
  33 # include       <unistd.h>
  34 # include       <string.h>
  35 # include       <stropts.h>
  36 # include       <errno.h>
  37 # include       <stdlib.h>
  38
  39 # include       "lp.h"
  40 # include       "msgs.h"
  41
  42 #if     defined(__STDC__)
  43 MESG * mcreate ( char * path )
  44 #else
  45 MESG * mcreate (path)
  46     char        *path;
  47 #endif
  48 {
  49     int                 fds[2];
  50     MESG                *md;
  51
  52     if (pipe(fds) != 0)
  53         return(NULL);
  54
  55 #if     !defined(NOCONNLD)
  56     if (ioctl(fds[1], I_PUSH, "connld") != 0)
  57         return(NULL);
  58 #endif
  59
  60     if (fattach(fds[1], path) != 0)
  61         return(NULL);
  62
  63     if ((md = (MESG *)Malloc(MDSIZE)) == NULL)
  64         return(NULL);
  65
  66     memset(md, 0, sizeof (MESG));
  67     md->admin = 1;
  68     md->file = Strdup(path);
  69     md->gid = getgid();
  70     md->readfd = fds[0];
  71     md->state = MDS_IDLE;
  72     md->type = MD_MASTER;
  73     md->uid = getuid();
  74 #if 1
  75     md->writefd = fds[1];
  76 #else
  77     md->writefd = fds[0];
  78     close(fds[1]);
  79 #endif
  80
  81     return(md);
  82 }