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As we no longer use function pointers for read in common archiving code

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archive_xread can be replaced with bb_full_read, and archive_copy_file
with bb_copyfd*
bb_copyfd is split into two functions bb_copyfd_size and bb_copyfd_eof,
they share a common backend.
This commit is contained in:
Glenn L McGrath
2003-11-21 22:24:57 +00:00
parent 1a2d75fd72
commit 7ffe133864
18 changed files with 55 additions and 148 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
archival/ar.c
View File

@@ -59,7 +59,7 @@ static void data_extract_regular_file(archive_handle_t *archive_handle)
file_header = archive_handle->file_header;
dst_fd = bb_xopen(file_header->name, O_WRONLY | O_CREAT);
archive_copy_file(archive_handle, dst_fd);
bb_copyfd_eof(archive_handle->src_fd, dst_fd, file_header->size);
close(dst_fd);
chmod(file_header->name, file_header->mode);

3
archival/libunarchive/Makefile.in
View File

@@ -37,14 +37,11 @@ LIBUNARCHIVE-y:= \
header_list.o \
header_verbose_list.o \
\
archive_xread.o \
archive_xread_all.o \
archive_xread_all_eof.o \
\
seek_by_char.o \
seek_by_jump.o \
\
archive_copy_file.o \
\
data_align.o \
find_list_entry.o \

44
archival/libunarchive/archive_copy_file.c
View File

@@ -1,44 +0,0 @@
/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include <unistd.h>
#include "libbb.h"
#include "unarchive.h"
extern void archive_copy_file(const archive_handle_t *archive_handle, const int dst_fd)
{
char buffer[512];
off_t chunksize = archive_handle->file_header->size;
while (chunksize != 0) {
size_t size;
if (chunksize > 512) {
size = 512;
} else {
size = chunksize;
}
// archive_xread_all(archive_handle, buffer, size);
size = archive_xread(archive_handle, buffer, size);
if (write(dst_fd, buffer, size) != size) {
bb_error_msg_and_die ("Short write");
}
chunksize -= size;
}
return;
}

33
archival/libunarchive/archive_xread.c
View File

@@ -1,33 +0,0 @@
/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Library General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "unarchive.h"
#include "libbb.h"
extern ssize_t archive_xread(const archive_handle_t *archive_handle, unsigned char *buf, const size_t count)
{
ssize_t size;
size = bb_full_read(archive_handle->src_fd, buf, count);
if (size < 0) {
bb_perror_msg_and_die("Read error");
}
return(size);
}

2
archival/libunarchive/archive_xread_all.c
View File

@@ -24,7 +24,7 @@ extern void archive_xread_all(const archive_handle_t *archive_handle, void *buf,
{
ssize_t size;
size = archive_xread(archive_handle, buf, count);
size = bb_full_read(archive_handle->src_fd, buf, count);
if (size != count) {
bb_error_msg_and_die("Short read");
}

2
archival/libunarchive/archive_xread_all_eof.c
View File

@@ -24,7 +24,7 @@ extern ssize_t archive_xread_all_eof(archive_handle_t *archive_handle, unsigned
{
ssize_t size;
size = archive_xread(archive_handle, buf, count);
size = bb_full_read(archive_handle->src_fd, buf, count);
if ((size != 0) && (size != count)) {
bb_perror_msg_and_die("Short read, read %d of %d", size, count);
}

2
archival/libunarchive/data_extract_all.c
View File

@@ -79,7 +79,7 @@ extern void data_extract_all(archive_handle_t *archive_handle)
case S_IFREG: {
/* Regular file */
dst_fd = bb_xopen(file_header->name, O_WRONLY | O_CREAT | O_EXCL);
archive_copy_file(archive_handle, dst_fd);
bb_copyfd_size(archive_handle->src_fd, dst_fd, file_header->size);
close(dst_fd);
break;
}

2
archival/libunarchive/data_extract_to_stdout.c
View File

@@ -18,5 +18,5 @@
extern void data_extract_to_stdout(archive_handle_t *archive_handle)
{
archive_copy_file(archive_handle, fileno(stdout));
bb_copyfd_eof(archive_handle->src_fd, fileno(stdout));
}

2
archival/libunarchive/get_header_tar.c
View File

@@ -57,7 +57,7 @@ extern char get_header_tar(archive_handle_t *archive_handle)
/* Align header */
data_align(archive_handle, 512);
if (archive_xread(archive_handle, tar.raw, 512) != 512) {
if (bb_full_read(archive_handle->src_fd, tar.raw, 512) != 512) {
/* Assume end of file */
return(EXIT_FAILURE);
}

16
archival/libunarchive/seek_by_char.c
View File

@@ -26,19 +26,7 @@
*/
extern void seek_by_char(const archive_handle_t *archive_handle, const unsigned int jump_size)
{
unsigned int remaining = jump_size;
unsigned int read_amount;
RESERVE_CONFIG_BUFFER(buf, BUFSIZ);
while (remaining > 0) {
if (remaining > BUFSIZ) {
read_amount = BUFSIZ;
} else {
read_amount = remaining;
}
read_amount = archive_xread(archive_handle, buf, read_amount);
remaining -= read_amount;
if (jump_size) {
bb_full_fd_action(archive_handle->src_fd, -1, jump_size, NULL);
}
RELEASE_CONFIG_BUFFER(buf);
}

17
archival/tar.c
View File

@@ -414,8 +414,7 @@ static int writeFileToTarball(const char *fileName, struct stat *statbuf,
if ((tbInfo->hlInfo == NULL)
&& (S_ISREG(statbuf->st_mode))) {
int inputFileFd;
char buffer[BUFSIZ];
ssize_t size = 0, readSize = 0;
ssize_t readSize = 0;
/* open the file we want to archive, and make sure all is well */
if ((inputFileFd = open(fileName, O_RDONLY)) < 0) {
@@ -424,18 +423,8 @@ static int writeFileToTarball(const char *fileName, struct stat *statbuf,
}
/* write the file to the archive */
while ((size = bb_full_read(inputFileFd, buffer, sizeof(buffer))) > 0) {
if (bb_full_write(tbInfo->tarFd, buffer, size) != size) {
/* Output file seems to have a problem */
bb_error_msg(bb_msg_io_error, fileName);
return (FALSE);
}
readSize += size;
}
if (size == -1) {
bb_error_msg(bb_msg_io_error, fileName);
return (FALSE);
}
readSize = bb_copyfd_eof(inputFileFd, tbInfo->tarFd);
/* Pad the file up to the tar block size */
for (; (readSize % TAR_BLOCK_SIZE) != 0; readSize++) {
write(tbInfo->tarFd, "\0", 1);