components/open-fabrics/rds-tools/rds-vendor.c

   1 /*
   2  * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.
   3  *
   4  * This software is available to you under a choice of one of two
   5  * licenses.  You may choose to be licensed under the terms of the GNU
   6  * General Public License (GPL) Version 2, available from the file
   7  * COPYING in the main directory of this source tree, or the
   8  * OpenIB.org BSD license below:
   9  *
  10  *     Redistribution and use in source and binary forms, with or
  11  *     without modification, are permitted provided that the following
  12  *     conditions are met:
  13  *
  14  *      - Redistributions of source code must retain the above
  15  *        copyright notice, this list of conditions and the following
  16  *        disclaimer.
  17  *
  18  *      - Redistributions in binary form must reproduce the above
  19  *        copyright notice, this list of conditions and the following
  20  *        disclaimer in the documentation and/or other materials
  21  *        provided with the distribution.
  22  *
  23  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  24  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  25  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  26  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  27  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  28  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  29  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  30  * SOFTWARE.
  31  */
  32 /*
  33  * OFED Solaris ioctl wrapper
  34  */
  35 #if defined(__SVR4) && defined(__sun)
  36
  37 #include <stdio.h>
  38 #include <string.h>
  39 #include <stdlib.h>
  40 #include <errno.h>
  41 #include <strings.h>
  42 #include <unistd.h>
  43 #include <stropts.h>
  44 #include <sys/rds.h>
  45
  46 int
  47 sol_ioctl(int fd, int opt_val, struct rds_info_arg *argp, socklen_t *ulen,
  48     int *item_size)
  49 {
  50         int len;
  51         struct rds_info_arg arg = *argp;
  52
  53         /* 1st call gets the length of the data available */
  54         *ulen = 0;
  55         bzero(&arg, sizeof (struct rds_info_arg));
  56         arg.lenp = (uint64_t)(uintptr_t)ulen;
  57         arg.datap = NULL;
  58         *item_size = ioctl(fd, opt_val, &arg);
  59         argp->lenp = arg.lenp;
  60         argp->datap = arg.datap;
  61         if ((*item_size < 0) && (errno != ENOSPC))
  62                 return (1);
  63
  64         do {
  65                 if (*ulen == 0)
  66                         return (0);
  67                 if (arg.datap)
  68                         arg.datap = (uint64_t)(uintptr_t)realloc(
  69                             (char *)(uintptr_t)arg.datap, *ulen);
  70                 else
  71                         arg.datap = (uint64_t)(uintptr_t)malloc(*ulen);
  72
  73                 if (arg.datap == NULL)
  74                         return (2);
  75
  76                 /* 2nd call gets the data */
  77                 len = *ulen;
  78                 *item_size = ioctl(fd, opt_val, &arg);
  79                 argp->lenp = arg.lenp;
  80                 argp->datap = arg.datap;
  81                 if ((*item_size < 0) && (errno != ENOSPC)) {
  82                         return (3);
  83                 }
  84         } while (*ulen > len);
  85         return (0);
  86 }
  87 #endif