contrib/libarchive-2.1/libarchive/archive_write_open_file.c

   1 /*-
   2  * Copyright (c) 2003-2007 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  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  *
  14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
  15  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  16  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  17  * IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
  18  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  19  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  20  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  21  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  23  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  24  */
  25
  26 #include "archive_platform.h"
  27 __FBSDID("$FreeBSD: src/lib/libarchive/archive_write_open_file.c,v 1.19 2007/01/09 08:05:56 kientzle Exp $");
  28
  29 #ifdef HAVE_SYS_STAT_H
  30 #include <sys/stat.h>
  31 #endif
  32 #ifdef HAVE_ERRNO_H
  33 #include <errno.h>
  34 #endif
  35 #ifdef HAVE_FCNTL_H
  36 #include <fcntl.h>
  37 #endif
  38 #ifdef HAVE_STDLIB_H
  39 #include <stdlib.h>
  40 #endif
  41 #ifdef HAVE_STRING_H
  42 #include <string.h>
  43 #endif
  44 #ifdef HAVE_UNISTD_H
  45 #include <unistd.h>
  46 #endif
  47
  48 #include "archive.h"
  49
  50 struct write_FILE_data {
  51         FILE            *f;
  52 };
  53
  54 static int      file_close(struct archive *, void *);
  55 static int      file_open(struct archive *, void *);
  56 static ssize_t  file_write(struct archive *, void *, const void *buff, size_t);
  57
  58 int
  59 archive_write_open_FILE(struct archive *a, FILE *f)
  60 {
  61         struct write_FILE_data *mine;
  62
  63         mine = (struct write_FILE_data *)malloc(sizeof(*mine));
  64         if (mine == NULL) {
  65                 archive_set_error(a, ENOMEM, "No memory");
  66                 return (ARCHIVE_FATAL);
  67         }
  68         mine->f = f;
  69         return (archive_write_open(a, mine,
  70                     file_open, file_write, file_close));
  71 }
  72
  73 static int
  74 file_open(struct archive *a, void *client_data)
  75 {
  76         (void)a; /* UNUSED */
  77         (void)client_data; /* UNUSED */
  78
  79         return (ARCHIVE_OK);
  80 }
  81
  82 static ssize_t
  83 file_write(struct archive *a, void *client_data, const void *buff, size_t length)
  84 {
  85         struct write_FILE_data  *mine;
  86         size_t  bytesWritten;
  87
  88         mine = client_data;
  89         bytesWritten = fwrite(buff, 1, length, mine->f);
  90         if (bytesWritten < length) {
  91                 archive_set_error(a, errno, "Write error");
  92                 return (-1);
  93         }
  94         return (bytesWritten);
  95 }
  96
  97 static int
  98 file_close(struct archive *a, void *client_data)
  99 {
 100         struct write_FILE_data  *mine = client_data;
 101
 102         (void)a; /* UNUSED */
 103         free(mine);
 104         return (ARCHIVE_OK);
 105 }