root/source4/heimdal/lib/roken/dumpdata.c

/* [<][>][^][v][top][bottom][index][help] */

DEFINITIONS

This source file includes following definitions.
  1. rk_dumpdata
  2. rk_undumpdata

   1 /*
   2  * Copyright (c) 2005 Kungliga Tekniska Högskolan
   3  * (Royal Institute of Technology, Stockholm, Sweden).
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  *
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  *
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  *
  17  * 3. Neither the name of the Institute nor the names of its contributors
  18  *    may be used to endorse or promote products derived from this software
  19  *    without specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
  22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
  25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  31  * SUCH DAMAGE.
  32  */
  33 
  34 #ifdef HAVE_CONFIG_H
  35 #include <config.h>
  36 RCSID("$Id$");
  37 #endif
  38 
  39 #include <unistd.h>
  40 
  41 #include "roken.h"
  42 
  43 /*
  44  * Write datablob to a filename, don't care about errors.
  45  */
  46 
  47 void ROKEN_LIB_FUNCTION
  48 rk_dumpdata (const char *filename, const void *buf, size_t size)
     /* [<][>][^][v][top][bottom][index][help] */
  49 {
  50     int fd;
  51 
  52     fd = open(filename, O_WRONLY|O_TRUNC|O_CREAT, 0640);
  53     if (fd < 0)
  54         return;
  55     net_write(fd, buf, size);
  56     close(fd);
  57 }
  58 
  59 /*
  60  * Read all data from a filename, care about errors.
  61  */
  62 
  63 int ROKEN_LIB_FUNCTION
  64 rk_undumpdata(const char *filename, void **buf, size_t *size)
     /* [<][>][^][v][top][bottom][index][help] */
  65 {
  66     struct stat sb;
  67     int fd, ret;
  68     ssize_t sret;
  69 
  70     *buf = NULL;
  71 
  72     fd = open(filename, O_RDONLY, 0);
  73     if (fd < 0)
  74         return errno;
  75     if (fstat(fd, &sb) != 0){
  76         ret = errno;
  77         goto out;
  78     }
  79     *buf = malloc(sb.st_size);
  80     if (*buf == NULL) {
  81         ret = ENOMEM;
  82         goto out;
  83     }
  84     *size = sb.st_size;
  85 
  86     sret = net_read(fd, *buf, *size);
  87     if (sret < 0)
  88         ret = errno;
  89     else if (sret != *size) {
  90         ret = EINVAL;
  91         free(*buf);
  92         *buf = NULL;
  93     } else
  94         ret = 0;
  95 
  96  out:
  97     close(fd);
  98     return ret;
  99 }

/* [<][>][^][v][top][bottom][index][help] */