/* Buffer management for tar.
Copyright (C) 1988, 1992, 1993, 1994, 1996, 1997, 1999, 2000, 2001,
- 2003, 2004, 2005 Free Software Foundation, Inc.
+ 2003, 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
Written by John Gilmore, on 1985-08-25.
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, or (at your option) any later
+ Free Software Foundation; either version 3, or (at your option) any later
version.
This program is distributed in the hope that it will be useful, but
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
#include <system.h>
+#include <system-ioctl.h>
#include <signal.h>
+#include <closeout.h>
#include <fnmatch.h>
#include <human.h>
#include <quotearg.h>
#include <rmt.h>
/* Number of retries before giving up on read. */
-#define READ_ERROR_MAX 10
+#define READ_ERROR_MAX 10
/* Globbing pattern to append to volume label if initial match failed. */
#define VOLUME_LABEL_APPEND " Volume [1-9]*"
/* Variables. */
-static tarlong prev_written; /* bytes written on previous volumes */
-static tarlong bytes_written; /* bytes written on this volume */
-static void *record_buffer[2]; /* allocated memory */
+static tarlong prev_written; /* bytes written on previous volumes */
+static tarlong bytes_written; /* bytes written on this volume */
+static void *record_buffer[2]; /* allocated memory */
+union block *record_buffer_aligned[2];
static int record_index;
/* FIXME: The following variables should ideally be static to this
module. However, this cannot be done yet. The cleanup continues! */
-union block *record_start; /* start of record of archive */
-union block *record_end; /* last+1 block of archive record */
-union block *current_block; /* current block of archive */
-enum access_mode access_mode; /* how do we handle the archive */
-off_t records_read; /* number of records read from this archive */
-off_t records_written; /* likewise, for records written */
+union block *record_start; /* start of record of archive */
+union block *record_end; /* last+1 block of archive record */
+union block *current_block; /* current block of archive */
+enum access_mode access_mode; /* how do we handle the archive */
+off_t records_read; /* number of records read from this archive */
+off_t records_written; /* likewise, for records written */
+extern off_t records_skipped; /* number of records skipped at the start
+ of the archive, defined in delete.c */
static off_t record_start_block; /* block ordinal at record_start */
/* Have we hit EOF yet? */
static bool hit_eof;
-/* Checkpointing counter */
-static int checkpoint;
-
static bool read_full_records = false;
/* We're reading, but we just read the last block and it's time to update.
uintmax_t continued_file_offset;
\f
-static int volno = 1; /* which volume of a multi-volume tape we're
- on */
-static int global_volno = 1; /* volume number to print in external
- messages */
+static int volno = 1; /* which volume of a multi-volume tape we're
+ on */
+static int global_volno = 1; /* volume number to print in external
+ messages */
bool write_archive_to_stdout;
\f
/* Multi-volume tracking support */
-static char *save_name; /* name of the file we are currently writing */
-static off_t save_totsize; /* total size of file we are writing, only
- valid if save_name is nonzero */
-static off_t save_sizeleft; /* where we are in the file we are writing,
- only valid if save_name is nonzero */
+static char *save_name; /* name of the file we are currently writing */
+static off_t save_totsize; /* total size of file we are writing, only
+ valid if save_name is nonzero */
+static off_t save_sizeleft; /* where we are in the file we are writing,
+ only valid if save_name is nonzero */
+
+\f
+static struct tar_stat_info dummy;
+
+void
+buffer_write_global_xheader ()
+{
+ xheader_write_global (&dummy.xhdr);
+}
void
mv_begin (struct tar_stat_info *st)
set_start_time ()
{
gettime (&start_time);
+ volume_start_time = start_time;
+ last_stat_time = start_time;
+}
+
+void
+set_volume_start_time ()
+{
+ gettime (&volume_start_time);
+ last_stat_time = volume_start_time;
}
void
{
struct timespec now;
gettime (&now);
- duration += ((now.tv_sec - start_time.tv_sec)
- + (now.tv_nsec - start_time.tv_nsec) / 1e9);
- set_start_time ();
+ duration += ((now.tv_sec - last_stat_time.tv_sec)
+ + (now.tv_nsec - last_stat_time.tv_nsec) / 1e9);
+ gettime (&last_stat_time);
}
\f
/* Compression detection */
enum compress_type {
- ct_none,
+ ct_tar, /* Plain tar file */
+ ct_none, /* Unknown compression type */
ct_compress,
ct_gzip,
- ct_bzip2
+ ct_bzip2,
+ ct_lzma,
+ ct_lzop
};
struct zip_magic
};
static struct zip_magic const magic[] = {
+ { ct_tar },
{ ct_none, },
{ ct_compress, 2, "\037\235", "compress", "-Z" },
{ ct_gzip, 2, "\037\213", "gzip", "-z" },
{ ct_bzip2, 3, "BZh", "bzip2", "-j" },
+ { ct_lzma, 6, "\xFFLZMA", "lzma", "-J" }, /* FIXME: ???? */
+ { ct_lzop, 4, "\211LZO", "lzop", "--lzop" },
};
#define NMAGIC (sizeof(magic)/sizeof(magic[0]))
/* Check if the file ARCHIVE is a compressed archive. */
enum compress_type
-check_compressed_archive ()
+check_compressed_archive (bool *pshort)
{
struct zip_magic const *p;
bool sfr;
+ bool temp;
+ if (!pshort)
+ pshort = &temp;
+
/* Prepare global data needed for find_next_block: */
record_end = record_start; /* set up for 1st record = # 0 */
sfr = read_full_records;
read_full_records = true; /* Suppress fatal error on reading a partial
- record */
- find_next_block ();
-
+ record */
+ *pshort = find_next_block () == 0;
+
/* Restore global values */
read_full_records = sfr;
if (tar_checksum (record_start, true) == HEADER_SUCCESS)
/* Probably a valid header */
- return ct_none;
+ return ct_tar;
- for (p = magic + 1; p < magic + NMAGIC; p++)
+ for (p = magic + 2; p < magic + NMAGIC; p++)
if (memcmp (record_start->buffer, p->magic, p->length) == 0)
return p->type;
open_compressed_archive ()
{
archive = rmtopen (archive_name_array[0], O_RDONLY | O_BINARY,
- MODE_RW, rsh_command_option);
+ MODE_RW, rsh_command_option);
if (archive == -1)
return archive;
if (!multi_volume_option)
{
- enum compress_type type = check_compressed_archive ();
-
- if (type == ct_none)
- return archive;
-
+ if (!use_compress_program_option)
+ {
+ bool shortfile;
+ enum compress_type type = check_compressed_archive (&shortfile);
+
+ switch (type)
+ {
+ case ct_tar:
+ if (shortfile)
+ ERROR ((0, 0, _("This does not look like a tar archive")));
+ return archive;
+
+ case ct_none:
+ if (shortfile)
+ ERROR ((0, 0, _("This does not look like a tar archive")));
+ set_comression_program_by_suffix (archive_name_array[0], NULL);
+ if (!use_compress_program_option)
+ return archive;
+ break;
+
+ default:
+ use_compress_program_option = compress_program (type);
+ break;
+ }
+ }
+
/* FD is not needed any more */
rmtclose (archive);
hit_eof = false; /* It might have been set by find_next_block in
- check_compressed_archive */
+ check_compressed_archive */
/* Open compressed archive */
- use_compress_program_option = compress_program (type);
child_pid = sys_child_open_for_uncompress ();
read_full_records = true;
}
}
\f
-void
-print_total_written (void)
+static void
+print_stats (FILE *fp, const char *text, tarlong numbytes)
{
- tarlong written = prev_written + bytes_written;
char bytes[sizeof (tarlong) * CHAR_BIT];
char abbr[LONGEST_HUMAN_READABLE + 1];
char rate[LONGEST_HUMAN_READABLE + 1];
int human_opts = human_autoscale | human_base_1024 | human_SI | human_B;
- sprintf (bytes, TARLONG_FORMAT, written);
+ sprintf (bytes, TARLONG_FORMAT, numbytes);
+
+ fprintf (fp, "%s: %s (%s, %s/s)\n",
+ text, bytes,
+ human_readable (numbytes, abbr, human_opts, 1, 1),
+ (0 < duration && numbytes / duration < (uintmax_t) -1
+ ? human_readable (numbytes / duration, rate, human_opts, 1, 1)
+ : "?"));
+}
+
+void
+print_total_stats ()
+{
+ switch (subcommand_option)
+ {
+ case CREATE_SUBCOMMAND:
+ case CAT_SUBCOMMAND:
+ case UPDATE_SUBCOMMAND:
+ case APPEND_SUBCOMMAND:
+ /* Amanda 2.4.1p1 looks for "Total bytes written: [0-9][0-9]*". */
+ print_stats (stderr, _("Total bytes written"),
+ prev_written + bytes_written);
+ break;
+
+ case DELETE_SUBCOMMAND:
+ {
+ char buf[UINTMAX_STRSIZE_BOUND];
+ print_stats (stderr, _("Total bytes read"),
+ records_read * record_size);
+ print_stats (stderr, _("Total bytes written"),
+ prev_written + bytes_written);
+ fprintf (stderr, _("Total bytes deleted: %s\n"),
+ STRINGIFY_BIGINT ((records_read - records_skipped)
+ * record_size
+ - (prev_written + bytes_written), buf));
+ }
+ break;
+
+ case EXTRACT_SUBCOMMAND:
+ case LIST_SUBCOMMAND:
+ case DIFF_SUBCOMMAND:
+ print_stats (stderr, _("Total bytes read"),
+ records_read * record_size);
+ break;
- /* Amanda 2.4.1p1 looks for "Total bytes written: [0-9][0-9]*". */
- fprintf (stderr, _("Total bytes written: %s (%s, %s/s)\n"), bytes,
- human_readable (written, abbr, human_opts, 1, 1),
- (0 < duration && written / duration < (uintmax_t) -1
- ? human_readable (written / duration, rate, human_opts, 1, 1)
- : "?"));
+ default:
+ abort ();
+ }
}
/* Compute and return the block ordinal at current_block. */
if (current_block == record_end)
{
if (hit_eof)
- return 0;
+ return 0;
flush_archive ();
if (current_block == record_end)
- {
- hit_eof = true;
- return 0;
- }
+ {
+ hit_eof = true;
+ return 0;
+ }
}
return current_block;
}
static void
init_buffer ()
{
- if (!record_buffer[record_index])
- page_aligned_alloc (&record_buffer[record_index], record_size);
-
- record_start = record_buffer[record_index];
+ if (! record_buffer_aligned[record_index])
+ record_buffer_aligned[record_index] =
+ page_aligned_alloc (&record_buffer[record_index], record_size);
+
+ record_start = record_buffer_aligned[record_index];
current_block = record_start;
record_end = record_start + blocking_factor;
}
{
int backed_up_flag = 0;
- if (index_file_name)
- {
- stdlis = fopen (index_file_name, "w");
- if (! stdlis)
- open_error (index_file_name);
- }
- else
- stdlis = to_stdout_option ? stderr : stdout;
-
if (record_size == 0)
FATAL_ERROR ((0, 0, _("Invalid value for record_size")));
record_index = 0;
init_buffer ();
-
+
/* When updating the archive, we start with reading. */
access_mode = wanted_access == ACCESS_UPDATE ? ACCESS_READ : wanted_access;
if (use_compress_program_option)
{
switch (wanted_access)
- {
- case ACCESS_READ:
- child_pid = sys_child_open_for_uncompress ();
- read_full_records = true;
- record_end = record_start; /* set up for 1st record = # 0 */
- break;
-
- case ACCESS_WRITE:
- child_pid = sys_child_open_for_compress ();
- break;
-
- case ACCESS_UPDATE:
- abort (); /* Should not happen */
- break;
- }
-
- if (wanted_access == ACCESS_WRITE
- && strcmp (archive_name_array[0], "-") == 0)
- stdlis = stderr;
+ {
+ case ACCESS_READ:
+ child_pid = sys_child_open_for_uncompress ();
+ read_full_records = true;
+ record_end = record_start; /* set up for 1st record = # 0 */
+ break;
+
+ case ACCESS_WRITE:
+ child_pid = sys_child_open_for_compress ();
+ break;
+
+ case ACCESS_UPDATE:
+ abort (); /* Should not happen */
+ break;
+ }
+
+ if (!index_file_name
+ && wanted_access == ACCESS_WRITE
+ && strcmp (archive_name_array[0], "-") == 0)
+ stdlis = stderr;
}
else if (strcmp (archive_name_array[0], "-") == 0)
{
read_full_records = true; /* could be a pipe, be safe */
if (verify_option)
- FATAL_ERROR ((0, 0, _("Cannot verify stdin/stdout archive")));
+ FATAL_ERROR ((0, 0, _("Cannot verify stdin/stdout archive")));
switch (wanted_access)
- {
- case ACCESS_READ:
- {
- enum compress_type type;
-
- archive = STDIN_FILENO;
-
- type = check_compressed_archive (archive);
- if (type != ct_none)
- FATAL_ERROR ((0, 0,
- _("Archive is compressed. Use %s option"),
- compress_option (type)));
- }
- break;
-
- case ACCESS_WRITE:
- archive = STDOUT_FILENO;
- stdlis = stderr;
- break;
-
- case ACCESS_UPDATE:
- archive = STDIN_FILENO;
- stdlis = stderr;
- write_archive_to_stdout = true;
- break;
- }
+ {
+ case ACCESS_READ:
+ {
+ bool shortfile;
+ enum compress_type type;
+
+ archive = STDIN_FILENO;
+
+ type = check_compressed_archive (&shortfile);
+ if (type != ct_tar && type != ct_none)
+ FATAL_ERROR ((0, 0,
+ _("Archive is compressed. Use %s option"),
+ compress_option (type)));
+ if (shortfile)
+ ERROR ((0, 0, _("This does not look like a tar archive")));
+ }
+ break;
+
+ case ACCESS_WRITE:
+ archive = STDOUT_FILENO;
+ if (!index_file_name)
+ stdlis = stderr;
+ break;
+
+ case ACCESS_UPDATE:
+ archive = STDIN_FILENO;
+ write_archive_to_stdout = true;
+ record_end = record_start; /* set up for 1st record = # 0 */
+ if (!index_file_name)
+ stdlis = stderr;
+ break;
+ }
}
else if (verify_option)
archive = rmtopen (archive_name_array[0], O_RDWR | O_CREAT | O_BINARY,
- MODE_RW, rsh_command_option);
+ MODE_RW, rsh_command_option);
else
switch (wanted_access)
{
case ACCESS_READ:
- archive = open_compressed_archive ();
- break;
+ archive = open_compressed_archive ();
+ break;
case ACCESS_WRITE:
- if (backup_option)
- {
- maybe_backup_file (archive_name_array[0], 1);
- backed_up_flag = 1;
- }
- archive = rmtcreat (archive_name_array[0], MODE_RW,
- rsh_command_option);
- break;
+ if (backup_option)
+ {
+ maybe_backup_file (archive_name_array[0], 1);
+ backed_up_flag = 1;
+ }
+ archive = rmtcreat (archive_name_array[0], MODE_RW,
+ rsh_command_option);
+ break;
case ACCESS_UPDATE:
- archive = rmtopen (archive_name_array[0], O_RDWR | O_CREAT | O_BINARY,
- MODE_RW, rsh_command_option);
- break;
+ archive = rmtopen (archive_name_array[0],
+ O_RDWR | O_CREAT | O_BINARY,
+ MODE_RW, rsh_command_option);
+
+ switch (check_compressed_archive (NULL))
+ {
+ case ct_none:
+ case ct_tar:
+ break;
+
+ default:
+ FATAL_ERROR ((0, 0,
+ _("Cannot update compressed archives")));
+ }
+ break;
}
if (archive < 0
int saved_errno = errno;
if (backed_up_flag)
- undo_last_backup ();
+ undo_last_backup ();
errno = saved_errno;
open_fatal (archive_name_array[0]);
}
switch (wanted_access)
{
- case ACCESS_UPDATE:
- records_written = 0;
- record_end = record_start; /* set up for 1st record = # 0 */
-
case ACCESS_READ:
- find_next_block (); /* read it in, check for EOF */
+ find_next_block (); /* read it in, check for EOF */
break;
+ case ACCESS_UPDATE:
case ACCESS_WRITE:
records_written = 0;
break;
{
ssize_t status;
- if (checkpoint_option && !(++checkpoint % 10))
- /* TRANSLATORS: This is a ``checkpoint of write operation'',
- *not* ``Writing a checkpoint''.
- E.g. in Spanish ``Punto de comprobaci@'on de escritura'',
- *not* ``Escribiendo un punto de comprobaci@'on'' */
- WARN ((0, 0, _("Write checkpoint %d"), checkpoint));
-
+ checkpoint_run (true);
if (tape_length_option && tape_length_option <= bytes_written)
{
errno = ENOSPC;
status = record_size;
else
status = sys_write_archive_buffer ();
-
+
return status;
}
if (totals_option)
{
int e = errno;
- print_total_written ();
+ print_total_stats ();
errno = e;
}
static void
short_read (size_t status)
{
- size_t left; /* bytes left */
- char *more; /* pointer to next byte to read */
+ size_t left; /* bytes left */
+ char *more; /* pointer to next byte to read */
more = record_start->buffer + status;
left = record_size - status;
+ if (left && left % BLOCKSIZE == 0
+ && !read_full_records && verbose_option > 1
+ && record_start_block == 0 && status != 0)
+ {
+ unsigned long rsize = status / BLOCKSIZE;
+ WARN ((0, 0,
+ ngettext ("Record size = %lu block",
+ "Record size = %lu blocks",
+ rsize),
+ rsize));
+ }
+
while (left % BLOCKSIZE != 0
- || (left && status && read_full_records))
+ || (left && status && read_full_records))
{
if (status)
- while ((status = rmtread (archive, more, left)) == SAFE_READ_ERROR)
- archive_read_error ();
+ while ((status = rmtread (archive, more, left)) == SAFE_READ_ERROR)
+ archive_read_error ();
if (status == 0)
- break;
+ break;
if (! read_full_records)
- {
- unsigned long rest = record_size - left;
-
- FATAL_ERROR ((0, 0,
- ngettext ("Unaligned block (%lu byte) in archive",
- "Unaligned block (%lu bytes) in archive",
- rest),
- rest));
- }
+ {
+ unsigned long rest = record_size - left;
- /* User warned us about this. Fix up. */
+ FATAL_ERROR ((0, 0,
+ ngettext ("Unaligned block (%lu byte) in archive",
+ "Unaligned block (%lu bytes) in archive",
+ rest),
+ rest));
+ }
left -= status;
more += status;
}
- /* FIXME: for size=0, multi-volume support. On the first record, warn
- about the problem. */
-
- if (!read_full_records && verbose_option > 1
- && record_start_block == 0 && status != 0)
- {
- unsigned long rsize = (record_size - left) / BLOCKSIZE;
- WARN ((0, 0,
- ngettext ("Record size = %lu block",
- "Record size = %lu blocks",
- rsize),
- rsize));
- }
-
record_end = record_start + (record_size - left) / BLOCKSIZE;
records_read++;
}
-/* Perform a read to flush the buffer. */
-size_t
-_flush_read (void)
-{
- size_t status; /* result from system call */
-
- if (checkpoint_option && !(++checkpoint % 10))
- /* TRANSLATORS: This is a ``checkpoint of read operation'',
- *not* ``Reading a checkpoint''.
- E.g. in Spanish ``Punto de comprobaci@'on de lectura'',
- *not* ``Leyendo un punto de comprobaci@'on'' */
- WARN ((0, 0, _("Read checkpoint %d"), checkpoint));
-
- /* Clear the count of errors. This only applies to a single call to
- flush_read. */
-
- read_error_count = 0; /* clear error count */
-
- if (write_archive_to_stdout && record_start_block != 0)
- {
- archive = STDOUT_FILENO;
- status = sys_write_archive_buffer ();
- archive = STDIN_FILENO;
- if (status != record_size)
- archive_write_error (status);
- }
-
- status = rmtread (archive, record_start->buffer, record_size);
- if (status == record_size)
- records_read++;
- return status;
-}
-
/* Flush the current buffer to/from the archive. */
void
flush_archive (void)
position = 0;
if (rmtlseek (archive, position, SEEK_SET) != position)
{
- /* Lseek failed. Try a different method. */
+ /* Lseek failed. Try a different method. */
- WARN ((0, 0,
- _("Cannot backspace archive file; it may be unreadable without -i")));
+ WARN ((0, 0,
+ _("Cannot backspace archive file; it may be unreadable without -i")));
- /* Replace the first part of the record with NULs. */
+ /* Replace the first part of the record with NULs. */
- if (record_start->buffer != output_start)
- memset (record_start->buffer, 0,
- output_start - record_start->buffer);
+ if (record_start->buffer != output_start)
+ memset (record_start->buffer, 0,
+ output_start - record_start->buffer);
}
}
}
{
flush_archive ();
if (current_block > record_start)
- flush_archive ();
+ flush_archive ();
}
sys_drain_input_pipe ();
verify_volume ();
if (rmtclose (archive) != 0)
- close_warn (*archive_name_cursor);
+ close_error (*archive_name_cursor);
sys_wait_for_child (child_pid);
if (file)
{
if (fscanf (file, "%d", &global_volno) != 1
- || global_volno < 0)
- FATAL_ERROR ((0, 0, _("%s: contains invalid volume number"),
- quotearg_colon (volno_file_option)));
+ || global_volno < 0)
+ FATAL_ERROR ((0, 0, _("%s: contains invalid volume number"),
+ quotearg_colon (volno_file_option)));
if (ferror (file))
- read_error (volno_file_option);
+ read_error (volno_file_option);
if (fclose (file) != 0)
- close_error (volno_file_option);
+ close_error (volno_file_option);
}
else if (errno != ENOENT)
open_error (volno_file_option);
{
fprintf (file, "%d\n", global_volno);
if (ferror (file))
- write_error (volno_file_option);
+ write_error (volno_file_option);
if (fclose (file) != 0)
- close_error (volno_file_option);
+ close_error (volno_file_option);
}
else
open_error (volno_file_option);
{
char *input_buffer = NULL;
size_t size = 0;
-
- while (1)
+ bool stop = false;
+
+ while (!stop)
{
fputc ('\007', stderr);
fprintf (stderr,
- _("Prepare volume #%d for %s and hit return: "),
- global_volno + 1, quote (*archive_name_cursor));
+ _("Prepare volume #%d for %s and hit return: "),
+ global_volno + 1, quote (*archive_name_cursor));
fflush (stderr);
-
+
if (getline (&input_buffer, &size, read_file) <= 0)
- {
- WARN ((0, 0, _("EOF where user reply was expected")));
-
- if (subcommand_option != EXTRACT_SUBCOMMAND
- && subcommand_option != LIST_SUBCOMMAND
- && subcommand_option != DIFF_SUBCOMMAND)
- WARN ((0, 0, _("WARNING: Archive is incomplete")));
-
- fatal_exit ();
- }
-
+ {
+ WARN ((0, 0, _("EOF where user reply was expected")));
+
+ if (subcommand_option != EXTRACT_SUBCOMMAND
+ && subcommand_option != LIST_SUBCOMMAND
+ && subcommand_option != DIFF_SUBCOMMAND)
+ WARN ((0, 0, _("WARNING: Archive is incomplete")));
+
+ fatal_exit ();
+ }
+
if (input_buffer[0] == '\n'
- || input_buffer[0] == 'y'
- || input_buffer[0] == 'Y')
- break;
+ || input_buffer[0] == 'y'
+ || input_buffer[0] == 'Y')
+ break;
switch (input_buffer[0])
- {
- case '?':
- {
- fprintf (stderr, _("\
- n [name] Give a new file name for the next (and subsequent) volume(s)\n\
+ {
+ case '?':
+ {
+ fprintf (stderr, _("\
+ n name Give a new file name for the next (and subsequent) volume(s)\n\
q Abort tar\n\
y or newline Continue operation\n"));
if (!restrict_option)
fprintf (stderr, _(" ! Spawn a subshell\n"));
- fprintf (stderr, _(" ? Print this list\n"));
- }
- break;
-
- case 'q':
- /* Quit. */
-
- WARN ((0, 0, _("No new volume; exiting.\n")));
-
- if (subcommand_option != EXTRACT_SUBCOMMAND
- && subcommand_option != LIST_SUBCOMMAND
- && subcommand_option != DIFF_SUBCOMMAND)
- WARN ((0, 0, _("WARNING: Archive is incomplete")));
-
- fatal_exit ();
-
- case 'n':
- /* Get new file name. */
-
- {
- char *name;
- char *cursor;
-
- for (name = input_buffer + 1;
- *name == ' ' || *name == '\t';
- name++)
- ;
-
- for (cursor = name; *cursor && *cursor != '\n'; cursor++)
- ;
- *cursor = '\0';
-
- /* FIXME: the following allocation is never reclaimed. */
- *archive_name_cursor = xstrdup (name);
- }
- break;
-
- case '!':
- if (!restrict_option)
- {
- sys_spawn_shell ();
- break;
- }
- /* FALL THROUGH */
-
- default:
- fprintf (stderr, _("Invalid input. Type ? for help.\n"));
- }
+ fprintf (stderr, _(" ? Print this list\n"));
+ }
+ break;
+
+ case 'q':
+ /* Quit. */
+
+ WARN ((0, 0, _("No new volume; exiting.\n")));
+
+ if (subcommand_option != EXTRACT_SUBCOMMAND
+ && subcommand_option != LIST_SUBCOMMAND
+ && subcommand_option != DIFF_SUBCOMMAND)
+ WARN ((0, 0, _("WARNING: Archive is incomplete")));
+
+ fatal_exit ();
+
+ case 'n':
+ /* Get new file name. */
+
+ {
+ char *name;
+ char *cursor;
+
+ for (name = input_buffer + 1;
+ *name == ' ' || *name == '\t';
+ name++)
+ ;
+
+ for (cursor = name; *cursor && *cursor != '\n'; cursor++)
+ ;
+ *cursor = '\0';
+
+ if (name[0])
+ {
+ /* FIXME: the following allocation is never reclaimed. */
+ *archive_name_cursor = xstrdup (name);
+ stop = true;
+ }
+ else
+ fprintf (stderr, "%s",
+ _("File name not specified. Try again.\n"));
+ }
+ break;
+
+ case '!':
+ if (!restrict_option)
+ {
+ sys_spawn_shell ();
+ break;
+ }
+ /* FALL THROUGH */
+
+ default:
+ fprintf (stderr, _("Invalid input. Type ? for help.\n"));
+ }
}
free (input_buffer);
}
{
static FILE *read_file;
static int looped;
+ int prompt;
if (!read_file && !info_script_option)
/* FIXME: if fopen is used, it will never be closed. */
assign_string (&volume_label, NULL);
assign_string (&continued_file_name, NULL);
continued_file_size = continued_file_offset = 0;
+ current_block = record_start;
if (rmtclose (archive) != 0)
- close_warn (*archive_name_cursor);
+ close_error (*archive_name_cursor);
archive_name_cursor++;
if (archive_name_cursor == archive_name_array + archive_names)
archive_name_cursor = archive_name_array;
looped = 1;
}
+ prompt = looped;
tryagain:
- if (looped)
+ if (prompt)
{
/* We have to prompt from now on. */
if (info_script_option)
- {
- if (volno_file_option)
- closeout_volume_number ();
- if (sys_exec_info_script (archive_name_cursor, global_volno+1))
- FATAL_ERROR ((0, 0, _("%s command failed"),
- quote (info_script_option)));
- }
+ {
+ if (volno_file_option)
+ closeout_volume_number ();
+ if (sys_exec_info_script (archive_name_cursor, global_volno+1))
+ FATAL_ERROR ((0, 0, _("%s command failed"),
+ quote (info_script_option)));
+ }
else
- change_tape_menu (read_file);
+ change_tape_menu (read_file);
}
if (strcmp (archive_name_cursor[0], "-") == 0)
}
else if (verify_option)
archive = rmtopen (*archive_name_cursor, O_RDWR | O_CREAT, MODE_RW,
- rsh_command_option);
+ rsh_command_option);
else
switch (mode)
{
case ACCESS_READ:
- archive = rmtopen (*archive_name_cursor, O_RDONLY, MODE_RW,
- rsh_command_option);
- break;
+ archive = rmtopen (*archive_name_cursor, O_RDONLY, MODE_RW,
+ rsh_command_option);
+ break;
case ACCESS_WRITE:
- if (backup_option)
- maybe_backup_file (*archive_name_cursor, 1);
- archive = rmtcreat (*archive_name_cursor, MODE_RW,
- rsh_command_option);
- break;
+ if (backup_option)
+ maybe_backup_file (*archive_name_cursor, 1);
+ archive = rmtcreat (*archive_name_cursor, MODE_RW,
+ rsh_command_option);
+ break;
case ACCESS_UPDATE:
- archive = rmtopen (*archive_name_cursor, O_RDWR | O_CREAT, MODE_RW,
- rsh_command_option);
- break;
+ archive = rmtopen (*archive_name_cursor, O_RDWR | O_CREAT, MODE_RW,
+ rsh_command_option);
+ break;
}
if (archive < 0)
{
open_warn (*archive_name_cursor);
if (!verify_option && mode == ACCESS_WRITE && backup_option)
- undo_last_backup ();
+ undo_last_backup ();
+ prompt = 1;
goto tryagain;
}
}
static bool
-read_header0 ()
+read_header0 (struct tar_stat_info *info)
{
- enum read_header rc = read_header (false);
+ enum read_header rc;
+ tar_stat_init (info);
+ rc = read_header_primitive (false, info);
if (rc == HEADER_SUCCESS)
{
set_next_block_after (current_header);
{
size_t status;
union block *header;
-
+ enum access_mode acc;
+
switch (subcommand_option)
{
case APPEND_SUBCOMMAND:
case CAT_SUBCOMMAND:
case UPDATE_SUBCOMMAND:
- if (!new_volume (ACCESS_UPDATE))
- return true;
+ acc = ACCESS_UPDATE;
break;
default:
- if (!new_volume (ACCESS_READ))
- return true;
+ acc = ACCESS_READ;
break;
}
+ if (!new_volume (acc))
+ return true;
+
while ((status = rmtread (archive, record_start->buffer, record_size))
- == SAFE_READ_ERROR)
+ == SAFE_READ_ERROR)
archive_read_error ();
if (status != record_size)
header = find_next_block ();
if (!header)
return false;
+
switch (header->header.typeflag)
{
case XGLTYPE:
{
- struct tar_stat_info dummy;
- if (!read_header0 ())
- return false;
- tar_stat_init (&dummy);
- xheader_decode (&dummy); /* decodes values from the global header */
- tar_stat_destroy (&dummy);
- if (!real_s_name)
- {
- /* We have read the extended header of the first member in
- this volume. Put it back, so next read_header works as
- expected. */
- current_block = record_start;
- }
- break;
+ if (!read_header0 (&dummy))
+ return false;
+ xheader_decode (&dummy); /* decodes values from the global header */
+ tar_stat_destroy (&dummy);
+ if (!real_s_name)
+ {
+ /* We have read the extended header of the first member in
+ this volume. Put it back, so next read_header works as
+ expected. */
+ current_block = record_start;
+ }
+ break;
}
-
+
case GNUTYPE_VOLHDR:
- if (!read_header0 ())
- return false;
+ if (!read_header0 (&dummy))
+ return false;
+ tar_stat_destroy (&dummy);
assign_string (&volume_label, current_header->header.name);
set_next_block_after (header);
header = find_next_block ();
if (header->header.typeflag != GNUTYPE_MULTIVOL)
- break;
+ break;
/* FALL THROUGH */
-
+
case GNUTYPE_MULTIVOL:
- if (!read_header0 ())
- return false;
+ if (!read_header0 (&dummy))
+ return false;
+ tar_stat_destroy (&dummy);
assign_string (&continued_file_name, current_header->header.name);
continued_file_size =
- UINTMAX_FROM_HEADER (current_header->header.size);
+ UINTMAX_FROM_HEADER (current_header->header.size);
continued_file_offset =
- UINTMAX_FROM_HEADER (current_header->oldgnu_header.offset);
+ UINTMAX_FROM_HEADER (current_header->oldgnu_header.offset);
break;
-
+
default:
break;
}
if (real_s_name)
{
uintmax_t s;
- if (!continued_file_name
- || strcmp (continued_file_name, real_s_name))
- {
- WARN ((0, 0, _("%s is not continued on this volume"),
- quote (real_s_name)));
- return false;
- }
+ if (!continued_file_name
+ || strcmp (continued_file_name, real_s_name))
+ {
+ if ((archive_format == GNU_FORMAT || archive_format == OLDGNU_FORMAT)
+ && strlen (real_s_name) >= NAME_FIELD_SIZE
+ && strncmp (continued_file_name, real_s_name,
+ NAME_FIELD_SIZE) == 0)
+ WARN ((0, 0,
+ _("%s is possibly continued on this volume: header contains truncated name"),
+ quote (real_s_name)));
+ else
+ {
+ WARN ((0, 0, _("%s is not continued on this volume"),
+ quote (real_s_name)));
+ return false;
+ }
+ }
s = continued_file_size + continued_file_offset;
if (real_s_totsize != s || s < continued_file_offset)
- {
- char totsizebuf[UINTMAX_STRSIZE_BOUND];
- char s1buf[UINTMAX_STRSIZE_BOUND];
- char s2buf[UINTMAX_STRSIZE_BOUND];
-
- WARN ((0, 0, _("%s is the wrong size (%s != %s + %s)"),
- quote (continued_file_name),
- STRINGIFY_BIGINT (save_totsize, totsizebuf),
- STRINGIFY_BIGINT (continued_file_size, s1buf),
- STRINGIFY_BIGINT (continued_file_offset, s2buf)));
- return false;
- }
-
+ {
+ char totsizebuf[UINTMAX_STRSIZE_BOUND];
+ char s1buf[UINTMAX_STRSIZE_BOUND];
+ char s2buf[UINTMAX_STRSIZE_BOUND];
+
+ WARN ((0, 0, _("%s is the wrong size (%s != %s + %s)"),
+ quote (continued_file_name),
+ STRINGIFY_BIGINT (save_totsize, totsizebuf),
+ STRINGIFY_BIGINT (continued_file_size, s1buf),
+ STRINGIFY_BIGINT (continued_file_offset, s2buf)));
+ return false;
+ }
+
if (real_s_totsize - real_s_sizeleft != continued_file_offset)
- {
- WARN ((0, 0, _("This volume is out of sequence")));
- return false;
- }
+ {
+ char totsizebuf[UINTMAX_STRSIZE_BOUND];
+ char s1buf[UINTMAX_STRSIZE_BOUND];
+ char s2buf[UINTMAX_STRSIZE_BOUND];
+
+ WARN ((0, 0, _("This volume is out of sequence (%s - %s != %s)"),
+ STRINGIFY_BIGINT (real_s_totsize, totsizebuf),
+ STRINGIFY_BIGINT (real_s_sizeleft, s1buf),
+ STRINGIFY_BIGINT (continued_file_offset, s2buf)));
+
+ return false;
+ }
}
increase_volume_number ();
return false;
string = xmalloc (strlen (volume_label_option)
- + sizeof VOLUME_LABEL_APPEND + 1);
+ + sizeof VOLUME_LABEL_APPEND + 1);
strcpy (string, volume_label_option);
strcat (string, VOLUME_LABEL_APPEND);
result = fnmatch (string, label->header.name, 0) == 0;
if (!label)
FATAL_ERROR ((0, 0, _("Archive not labeled to match %s"),
- quote (volume_label_option)));
+ quote (volume_label_option)));
if (!check_label_pattern (label))
FATAL_ERROR ((0, 0, _("Volume %s does not match %s"),
- quote_n (0, label->header.name),
- quote_n (1, volume_label_option)));
+ quote_n (0, label->header.name),
+ quote_n (1, volume_label_option)));
}
/* Mark the archive with volume label STR. */
_write_volume_label (const char *str)
{
if (archive_format == POSIX_FORMAT)
- xheader_store ("GNU.volume.label", NULL, str);
+ xheader_store ("GNU.volume.label", &dummy, str);
else
{
union block *label = find_next_block ();
-
+
memset (label, 0, BLOCKSIZE);
strcpy (label->header.name, volume_label_option);
assign_string (¤t_stat_info.file_name,
- label->header.name);
+ label->header.name);
current_stat_info.had_trailing_slash =
- strip_trailing_slashes (current_stat_info.file_name);
+ strip_trailing_slashes (current_stat_info.file_name);
label->header.typeflag = GNUTYPE_VOLHDR;
TIME_TO_CHARS (start_time.tv_sec, label->header.mtime);
char buf[UINTMAX_STRSIZE_BOUND];
char *p = STRINGIFY_BIGINT (volno, buf);
char *s = xmalloc (strlen (volume_label_option) + sizeof VOL_SUFFIX
- + strlen (p) + 2);
+ + strlen (p) + 2);
sprintf (s, "%s %s %s", volume_label_option, VOL_SUFFIX, p);
_write_volume_label (s);
free (s);
st.stat.st_uid = getuid ();
st.stat.st_gid = getgid ();
st.orig_file_name = xheader_format_name (&st,
- "%d/GNUFileParts.%p/%f.%n",
- real_s_part_no);
+ "%d/GNUFileParts.%p/%f.%n",
+ real_s_part_no);
st.file_name = st.orig_file_name;
st.archive_file_size = st.stat.st_size = real_s_sizeleft;
-
+
block_ordinal = current_block_ordinal ();
blk = start_header (&st);
- free (st.orig_file_name);
if (!blk)
- abort (); /* FIXME */
+ abort (); /* FIXME */
finish_header (&st, blk, block_ordinal);
+ free (st.orig_file_name);
}
}
{
int tmp;
union block *block = find_next_block ();
-
+
if (strlen (real_s_name) > NAME_FIELD_SIZE)
WARN ((0, 0,
- _("%s: file name too long to be stored in a GNU multivolume header, truncated"),
- quotearg_colon (real_s_name)));
-
+ _("%s: file name too long to be stored in a GNU multivolume header, truncated"),
+ quotearg_colon (real_s_name)));
+
memset (block, 0, BLOCKSIZE);
-
+
/* FIXME: Michael P Urban writes: [a long name file] is being written
when a new volume rolls around [...] Looks like the wrong value is
being preserved in real_s_name, though. */
-
+
strncpy (block->header.name, real_s_name, NAME_FIELD_SIZE);
block->header.typeflag = GNUTYPE_MULTIVOL;
-
+
OFF_TO_CHARS (real_s_sizeleft, block->header.size);
OFF_TO_CHARS (real_s_totsize - real_s_sizeleft,
- block->oldgnu_header.offset);
-
+ block->oldgnu_header.offset);
+
tmp = verbose_option;
verbose_option = 0;
finish_header (¤t_stat_info, block, -1);
if (archive_format == POSIX_FORMAT)
{
off_t d = real_s_totsize - real_s_sizeleft;
- xheader_store ("GNU.volume.filename", NULL, real_s_name);
- xheader_store ("GNU.volume.size", NULL, &real_s_sizeleft);
- xheader_store ("GNU.volume.offset", NULL, &d);
+ xheader_store ("GNU.volume.filename", &dummy, real_s_name);
+ xheader_store ("GNU.volume.size", &dummy, &real_s_sizeleft);
+ xheader_store ("GNU.volume.offset", &dummy, &d);
}
else
gnu_add_multi_volume_header ();
if (multi_volume_option)
{
if (save_name)
- {
- assign_string (&real_s_name,
- safer_name_suffix (save_name, false,
- absolute_names_option));
- real_s_totsize = save_totsize;
- real_s_sizeleft = save_sizeleft;
- }
+ {
+ assign_string (&real_s_name,
+ safer_name_suffix (save_name, false,
+ absolute_names_option));
+ real_s_totsize = save_totsize;
+ real_s_sizeleft = save_sizeleft;
+ }
else
- {
- assign_string (&real_s_name, 0);
- real_s_totsize = 0;
- real_s_sizeleft = 0;
- }
+ {
+ assign_string (&real_s_name, 0);
+ real_s_totsize = 0;
+ real_s_sizeleft = 0;
+ }
}
}
static void
simple_flush_read (void)
{
- size_t status; /* result from system call */
-
- if (checkpoint_option && !(++checkpoint % 10))
- /* TRANSLATORS: This is a ``checkpoint of read operation'',
- *not* ``Reading a checkpoint''.
- E.g. in Spanish ``Punto de comprobaci@'on de lectura'',
- *not* ``Leyendo un punto de comprobaci@'on'' */
- WARN ((0, 0, _("Read checkpoint %d"), checkpoint));
+ size_t status; /* result from system call */
+ checkpoint_run (false);
+
/* Clear the count of errors. This only applies to a single call to
flush_read. */
- read_error_count = 0; /* clear error count */
+ read_error_count = 0; /* clear error count */
if (write_archive_to_stdout && record_start_block != 0)
{
status = sys_write_archive_buffer ();
archive = STDIN_FILENO;
if (status != record_size)
- archive_write_error (status);
+ archive_write_error (status);
}
-
+
for (;;)
{
status = rmtread (archive, record_start->buffer, record_size);
if (status == record_size)
- {
- records_read++;
- return;
- }
+ {
+ records_read++;
+ return;
+ }
if (status == SAFE_READ_ERROR)
- {
- archive_read_error ();
- continue; /* try again */
- }
+ {
+ archive_read_error ();
+ continue; /* try again */
+ }
break;
}
short_read (status);
static void
_gnu_flush_read (void)
{
- size_t status; /* result from system call */
-
- if (checkpoint_option && !(++checkpoint % 10))
- /* TRANSLATORS: This is a ``checkpoint of read operation'',
- *not* ``Reading a checkpoint''.
- E.g. in Spanish ``Punto de comprobaci@'on de lectura'',
- *not* ``Leyendo un punto de comprobaci@'on'' */
- WARN ((0, 0, _("Read checkpoint %d"), checkpoint));
+ size_t status; /* result from system call */
+ checkpoint_run (false);
+
/* Clear the count of errors. This only applies to a single call to
flush_read. */
- read_error_count = 0; /* clear error count */
+ read_error_count = 0; /* clear error count */
if (write_archive_to_stdout && record_start_block != 0)
{
status = sys_write_archive_buffer ();
archive = STDIN_FILENO;
if (status != record_size)
- archive_write_error (status);
+ archive_write_error (status);
}
multi_volume_sync ();
{
status = rmtread (archive, record_start->buffer, record_size);
if (status == record_size)
- {
- records_read++;
- return;
- }
+ {
+ records_read++;
+ return;
+ }
/* The condition below used to include
- || (status > 0 && !read_full_records)
- This is incorrect since even if new_volume() succeeds, the
- subsequent call to rmtread will overwrite the chunk of data
- already read in the buffer, so the processing will fail */
+ || (status > 0 && !read_full_records)
+ This is incorrect since even if new_volume() succeeds, the
+ subsequent call to rmtread will overwrite the chunk of data
+ already read in the buffer, so the processing will fail */
if ((status == 0
- || (status == SAFE_READ_ERROR && errno == ENOSPC))
- && multi_volume_option)
- {
- while (!try_new_volume ())
- ;
- return;
- }
+ || (status == SAFE_READ_ERROR && errno == ENOSPC))
+ && multi_volume_option)
+ {
+ while (!try_new_volume ())
+ ;
+ return;
+ }
else if (status == SAFE_READ_ERROR)
- {
- archive_read_error ();
- continue;
- }
+ {
+ archive_read_error ();
+ continue;
+ }
break;
}
short_read (status);
{
flush_read_ptr = simple_flush_read; /* Avoid recursion */
_gnu_flush_read ();
- flush_read_ptr = gnu_flush_read;
+ flush_read_ptr = gnu_flush_read;
}
static void
char *copy_ptr;
size_t copy_size;
size_t bufsize;
-
+ tarlong wrt;
+
status = _flush_write ();
if (status != record_size && !multi_volume_option)
archive_write_error (status);
else
{
- records_written++;
+ if (status)
+ records_written++;
bytes_written += status;
}
return;
}
+ if (status % BLOCKSIZE)
+ {
+ ERROR ((0, 0, _("write did not end on a block boundary")));
+ archive_write_error (status);
+ }
+
/* In multi-volume mode. */
/* ENXIO is for the UNIX PC. */
if (status < 0 && errno != ENOSPC && errno != EIO && errno != ENXIO)
archive_write_error (status);
+ real_s_sizeleft -= status;
if (!new_volume (ACCESS_WRITE))
return;
- xheader_destroy (&extended_header);
+ tar_stat_destroy (&dummy);
increase_volume_number ();
- if (totals_option)
- prev_written += bytes_written;
+ prev_written += bytes_written;
bytes_written = 0;
copy_ptr = record_start->buffer + status;
copy_size = buffer_level - status;
+
/* Switch to the next buffer */
record_index = !record_index;
init_buffer ();
-
+
if (volume_label_option)
add_volume_label ();
if (real_s_name)
add_multi_volume_header ();
- write_extended (true, NULL, find_next_block ());
+ write_extended (true, &dummy, find_next_block ());
+ tar_stat_destroy (&dummy);
+
if (real_s_name)
add_chunk_header ();
+ wrt = bytes_written;
header = find_next_block ();
bufsize = available_space_after (header);
while (bufsize < copy_size)
memcpy (header->buffer, copy_ptr, copy_size);
memset (header->buffer + copy_size, 0, bufsize - copy_size);
set_next_block_after (header + (copy_size - 1) / BLOCKSIZE);
+ if (multi_volume_option && wrt < bytes_written)
+ {
+ /* The value of bytes_written has changed while moving data;
+ that means that flush_archive was executed at least once in
+ between, and, as a consequence, copy_size bytes were not written
+ to disk. We need to update sizeleft variables to compensate for
+ that. */
+ save_sizeleft += copy_size;
+ multi_volume_sync ();
+ }
find_next_block ();
}
{
flush_write_ptr = simple_flush_write; /* Avoid recursion */
_gnu_flush_write (buffer_level);
- flush_write_ptr = gnu_flush_write;
+ flush_write_ptr = gnu_flush_write;
}
void
flush_write ()
{
flush_write_ptr (record_size);
-}
+}
void
open_archive (enum access_mode wanted_access)
{
case ACCESS_READ:
if (volume_label_option)
- match_volume_label ();
+ match_volume_label ();
break;
case ACCESS_WRITE:
records_written = 0;
if (volume_label_option)
- write_volume_label ();
+ write_volume_label ();
break;
default:
break;
}
+ set_volume_start_time ();
}
-
projects / chaz / tar / blobdiff