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752ede3058
routine fails or the first read fails), invoke the client close routine immediately so the client can clean up. Also, don't store the client pointers in this case, so that the client close routine can't accidentally get called more than once. A minor style fix to archive_read_open_fd.c while I'm here. PR: 86453 Thanks to: Andrew Turner for reporting this and suggesting a fix.
107 lines
3.0 KiB
C
107 lines
3.0 KiB
C
/*-
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* Copyright (c) 2003-2004 Tim Kientzle
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer
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* in this position and unchanged.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "archive_platform.h"
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__FBSDID("$FreeBSD$");
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#include <sys/stat.h>
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#include <errno.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include "archive.h"
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#include "archive_private.h"
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struct read_fd_data {
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int fd;
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size_t block_size;
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void *buffer;
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};
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static int file_close(struct archive *, void *);
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static int file_open(struct archive *, void *);
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static ssize_t file_read(struct archive *, void *, const void **buff);
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int
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archive_read_open_fd(struct archive *a, int fd, size_t block_size)
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{
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struct read_fd_data *mine;
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mine = malloc(sizeof(*mine));
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if (mine == NULL) {
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archive_set_error(a, ENOMEM, "No memory");
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return (ARCHIVE_FATAL);
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}
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mine->block_size = block_size;
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mine->buffer = malloc(mine->block_size);
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if (mine->buffer == NULL) {
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archive_set_error(a, ENOMEM, "No memory");
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free(mine);
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return (ARCHIVE_FATAL);
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}
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mine->fd = fd;
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return (archive_read_open(a, mine, file_open, file_read, file_close));
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}
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static int
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file_open(struct archive *a, void *client_data)
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{
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struct read_fd_data *mine = client_data;
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struct stat st;
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if (fstat(mine->fd, &st) != 0) {
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archive_set_error(a, errno, "Can't stat fd %d", mine->fd);
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return (ARCHIVE_FATAL);
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}
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a->skip_file_dev = st.st_dev;
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a->skip_file_ino = st.st_ino;
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return (ARCHIVE_OK);
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}
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static ssize_t
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file_read(struct archive *a, void *client_data, const void **buff)
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{
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struct read_fd_data *mine = client_data;
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(void)a; /* UNUSED */
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*buff = mine->buffer;
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return (read(mine->fd, mine->buffer, mine->block_size));
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}
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static int
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file_close(struct archive *a, void *client_data)
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{
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struct read_fd_data *mine = client_data;
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(void)a; /* UNUSED */
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if (mine->buffer != NULL)
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free(mine->buffer);
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free(mine);
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return (ARCHIVE_OK);
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}
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