contrib/libarchive-1.3.1/libarchive/archive_write_open_file.c

   1 /*-
   2  * Copyright (c) 2003-2004 Tim Kientzle
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer
  10  *    in this position and unchanged.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in the
  13  *    documentation and/or other materials provided with the distribution.
  14  *
  15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
  16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  17  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  18  * IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
  19  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  20  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  21  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  22  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  24  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  25  */
  26
  27 #include "archive_platform.h"
  28 __FBSDID("$FreeBSD: src/lib/libarchive/archive_write_open_file.c,v 1.11 2005/03/13 01:47:31 kientzle Exp $");
  29
  30 #include <sys/stat.h>
  31 #include <errno.h>
  32 #include <stdio.h>
  33 #include <stdlib.h>
  34 #include <string.h>
  35 #include <unistd.h>
  36
  37 #include "archive.h"
  38 #include "archive_private.h"
  39
  40 struct write_FILE_data {
  41         FILE            *f;
  42 };
  43
  44 static int      file_close(struct archive *, void *);
  45 static int      file_open(struct archive *, void *);
  46 static ssize_t  file_write(struct archive *, void *, void *buff, size_t);
  47
  48 int
  49 archive_write_open_FILE(struct archive *a, FILE *f)
  50 {
  51         struct write_FILE_data *mine;
  52
  53         mine = malloc(sizeof(*mine));
  54         if (mine == NULL) {
  55                 archive_set_error(a, ENOMEM, "No memory");
  56                 return (ARCHIVE_FATAL);
  57         }
  58         mine->f = f;
  59         return (archive_write_open(a, mine,
  60                     file_open, file_write, file_close));
  61 }
  62
  63 static int
  64 file_open(struct archive *a, void *client_data)
  65 {
  66         (void)a; /* UNUSED */
  67         (void)client_data; /* UNUSED */
  68
  69         return (ARCHIVE_OK);
  70 }
  71
  72 static ssize_t
  73 file_write(struct archive *a, void *client_data, void *buff, size_t length)
  74 {
  75         struct write_FILE_data  *mine;
  76         size_t  bytesWritten;
  77
  78         mine = client_data;
  79         bytesWritten = fwrite(buff, 1, length, mine->f);
  80         if (bytesWritten < length) {
  81                 archive_set_error(a, errno, "Write error");
  82                 return (-1);
  83         }
  84         return (bytesWritten);
  85 }
  86
  87 static int
  88 file_close(struct archive *a, void *client_data)
  89 {
  90         struct write_FILE_data  *mine = client_data;
  91
  92         (void)a; /* UNUSED */
  93         free(mine);
  94         return (ARCHIVE_OK);
  95 }