ipc/ipc_method.c

   1 /*-
   2  * Copyright (c) 1996
   3  *      Rob Zimmermann.  All rights reserved.
   4  * Copyright (c) 1996
   5  *      Keith Bostic.  All rights reserved.
   6  *
   7  * See the LICENSE file for redistribution information.
   8  */
   9
  10 #include "config.h"
  11
  12 #include <sys/types.h>
  13 #include <sys/queue.h>
  14 #include <sys/stat.h>
  15
  16 #include <bitstring.h>
  17 #include <errno.h>
  18 #include <fcntl.h>
  19 #include <stdio.h>
  20 #include <stdlib.h>
  21 #include <string.h>
  22 #include <unistd.h>
  23
  24 #include <sys/uio.h>
  25
  26 #include "../common/common.h"
  27 #include "ip.h"
  28
  29 static int vi_close __P((IPVI *));
  30 static int vi_new_window __P((IPVI *, IPVIWIN **));
  31
  32 /*
  33  * vi_create
  34  *
  35  * PUBLIC: int vi_create __P((IPVI **, u_int32_t));
  36  */
  37 int
  38 vi_create(ipvip, flags)
  39         IPVI        **ipvip;
  40         u_int32_t     flags;
  41 {
  42         IPVI    *ipvi;
  43
  44         MALLOC_GOTO(NULL, ipvi, IPVI*, sizeof(IPVI));
  45         memset(ipvi, 0, sizeof(IPVI));
  46
  47         ipvi->flags = flags;
  48
  49         ipvi->run = vi_run;
  50         ipvi->new_window = vi_new_window;
  51         ipvi->close = vi_close;
  52
  53         *ipvip = ipvi;
  54
  55         return 0;
  56
  57 alloc_err:
  58         return 1;
  59 }
  60
  61 static int
  62 vi_new_window (IPVI *ipvi, IPVIWIN **ipviwinp)
  63 {
  64         IPVIWIN *ipviwin;
  65
  66         MALLOC_GOTO(NULL, ipviwin, IPVIWIN*, sizeof(IPVIWIN));
  67         memset(ipviwin, 0, sizeof(IPVIWIN));
  68
  69         ipviwin->ifd = ipvi->ifd;
  70         ipviwin->ofd = ipvi->ofd;
  71
  72         *ipviwinp = ipviwin;
  73
  74         return 0;
  75
  76 alloc_err:
  77         return 1;
  78 }
  79
  80 static int  vi_close(ipvi)
  81         IPVI *ipvi;
  82 {
  83         memset(ipvi, 6, sizeof(IPVI));
  84         free(ipvi);
  85         return 0;
  86 }
  87