mirror of
https://github.com/MariaDB/server.git
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424 lines
11 KiB
C
424 lines
11 KiB
C
/* Copyright (c) 2007, 2010, Oracle and/or its affiliates
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; version 2 of the License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */
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#include "azlib.h"
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#include <string.h>
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#include <assert.h>
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#include <stdio.h>
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#include <stdarg.h>
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#include <m_ctype.h>
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#include <m_string.h>
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#include <my_getopt.h>
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#include <mysql_version.h>
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#define BUFFER_LEN 1024
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#define ARCHIVE_ROW_HEADER_SIZE 4
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#define SHOW_VERSION "0.1"
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static void get_options(int *argc,char * * *argv);
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static void print_version(void);
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static void usage(void);
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static const char *opt_tmpdir;
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static const char *new_auto_increment;
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unsigned long long new_auto_increment_value;
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static const char *load_default_groups[]= { "archive_reader", 0 };
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static char **default_argv;
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int opt_check, opt_force, opt_quiet, opt_backup= 0, opt_extract_frm;
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int opt_autoincrement;
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int main(int argc, char *argv[])
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{
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unsigned int ret;
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azio_stream reader_handle;
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MY_INIT(argv[0]);
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get_options(&argc, &argv);
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if (argc < 1)
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{
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printf("No file specified. \n");
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return 0;
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}
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if (!(ret= azopen(&reader_handle, argv[0], O_RDONLY|O_BINARY)))
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{
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printf("Could not open Archive file\n");
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return 0;
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}
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if (opt_autoincrement)
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{
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azio_stream writer_handle;
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if (new_auto_increment_value)
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{
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if (reader_handle.auto_increment >= new_auto_increment_value)
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{
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printf("Value is lower then current value\n");
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goto end;
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}
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}
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else
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{
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new_auto_increment_value= reader_handle.auto_increment + 1;
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}
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if (!(ret= azopen(&writer_handle, argv[0], O_CREAT|O_RDWR|O_BINARY)))
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{
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printf("Could not open file for update: %s\n", argv[0]);
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goto end;
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}
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writer_handle.auto_increment= new_auto_increment_value;
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azclose(&writer_handle);
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azflush(&reader_handle, Z_SYNC_FLUSH);
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}
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printf("Version %u\n", reader_handle.version);
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if (reader_handle.version > 2)
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{
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printf("\tMinor version %u\n", reader_handle.minor_version);
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printf("\tStart position %llu\n", (unsigned long long)reader_handle.start);
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printf("\tBlock size %u\n", reader_handle.block_size);
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printf("\tRows %llu\n", reader_handle.rows);
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printf("\tAutoincrement %llu\n", reader_handle.auto_increment);
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printf("\tCheck Point %llu\n", reader_handle.check_point);
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printf("\tForced Flushes %llu\n", reader_handle.forced_flushes);
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printf("\tLongest Row %u\n", reader_handle.longest_row);
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printf("\tShortest Row %u\n", reader_handle.shortest_row);
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printf("\tState %s\n", ( reader_handle.dirty ? "dirty" : "clean"));
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printf("\tFRM stored at %u\n", reader_handle.frm_start_pos);
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printf("\tComment stored at %u\n", reader_handle.comment_start_pos);
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printf("\tData starts at %u\n", (unsigned int)reader_handle.start);
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if (reader_handle.frm_start_pos)
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printf("\tFRM length %u\n", reader_handle.frm_length);
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if (reader_handle.comment_start_pos)
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{
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char *comment = (char *) my_malloc(reader_handle.comment_length,
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MYF(MY_WME));
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if (comment)
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{
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azread_comment(&reader_handle, comment);
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printf("\tComment length %u\n\t\t%.*s\n",
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reader_handle.comment_length,
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reader_handle.comment_length, comment);
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my_free(comment,MYF(0));
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}
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}
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}
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else
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{
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goto end;
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}
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printf("\n");
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if (opt_check)
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{
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uchar size_buffer[ARCHIVE_ROW_HEADER_SIZE];
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int error;
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unsigned int x;
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unsigned int read;
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unsigned int row_len;
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unsigned long long row_count= 0;
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char buffer;
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while ((read= azread(&reader_handle, (uchar *)size_buffer,
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ARCHIVE_ROW_HEADER_SIZE, &error)))
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{
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if (error == Z_STREAM_ERROR || (read && read < ARCHIVE_ROW_HEADER_SIZE))
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{
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printf("Table is damaged\n");
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goto end;
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}
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/* If we read nothing we are at the end of the file */
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if (read == 0 || read != ARCHIVE_ROW_HEADER_SIZE)
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break;
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row_len= uint4korr(size_buffer);
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row_count++;
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if (row_len > reader_handle.longest_row)
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{
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printf("Table is damaged, row %llu is invalid\n",
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row_count);
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goto end;
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}
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for (read= x= 0; x < row_len ; x++)
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{
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read+= (unsigned int)azread(&reader_handle, &buffer, sizeof(char), &error);
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if (!read)
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break;
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}
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if (row_len != read)
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{
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printf("Row length did not match row (at %llu). %u != %u \n",
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row_count, row_len, read);
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goto end;
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}
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}
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if (0)
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{
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printf("Table is damaged\n");
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goto end;
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}
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else
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{
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printf("Found %llu rows\n", row_count);
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}
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}
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if (opt_backup)
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{
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uchar size_buffer[ARCHIVE_ROW_HEADER_SIZE];
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int error;
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unsigned int read;
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unsigned int row_len;
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unsigned long long row_count= 0;
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char *buffer;
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azio_stream writer_handle;
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buffer= (char *) my_malloc(reader_handle.longest_row, MYF(0));
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if (buffer == NULL)
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{
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printf("Could not allocate memory for row %llu\n", row_count);
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goto end;
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}
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if (!(ret= azopen(&writer_handle, argv[1], O_CREAT|O_RDWR|O_BINARY)))
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{
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printf("Could not open file for backup: %s\n", argv[1]);
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goto end;
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}
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writer_handle.auto_increment= reader_handle.auto_increment;
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if (reader_handle.frm_length)
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{
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char *ptr;
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ptr= (char *)my_malloc(sizeof(char) * reader_handle.frm_length, MYF(0));
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azread_frm(&reader_handle, ptr);
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azwrite_frm(&writer_handle, ptr, reader_handle.frm_length);
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my_free(ptr);
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}
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if (reader_handle.comment_length)
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{
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char *ptr;
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ptr= (char *)my_malloc(sizeof(char) * reader_handle.comment_length, MYF(0));
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azread_comment(&reader_handle, ptr);
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azwrite_comment(&writer_handle, ptr, reader_handle.comment_length);
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my_free(ptr);
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}
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while ((read= azread(&reader_handle, (uchar *)size_buffer,
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ARCHIVE_ROW_HEADER_SIZE, &error)))
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{
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if (error == Z_STREAM_ERROR || (read && read < ARCHIVE_ROW_HEADER_SIZE))
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{
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printf("Table is damaged\n");
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goto end;
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}
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/* If we read nothing we are at the end of the file */
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if (read == 0 || read != ARCHIVE_ROW_HEADER_SIZE)
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break;
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row_len= uint4korr(size_buffer);
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row_count++;
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memcpy(buffer, size_buffer, ARCHIVE_ROW_HEADER_SIZE);
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read= (unsigned int)azread(&reader_handle, buffer + ARCHIVE_ROW_HEADER_SIZE,
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row_len, &error);
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DBUG_ASSERT(read == row_len);
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azwrite(&writer_handle, buffer, row_len + ARCHIVE_ROW_HEADER_SIZE);
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if (row_len != read)
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{
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printf("Row length did not match row (at %llu). %u != %u \n",
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row_count, row_len, read);
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goto end;
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}
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if (reader_handle.rows == writer_handle.rows)
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break;
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}
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my_free(buffer, MYF(0));
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azclose(&writer_handle);
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}
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if (opt_extract_frm)
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{
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File frm_file;
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char *ptr;
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frm_file= my_open(argv[1], O_CREAT|O_RDWR|O_BINARY, MYF(0));
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ptr= (char *)my_malloc(sizeof(char) * reader_handle.frm_length, MYF(0));
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azread_frm(&reader_handle, ptr);
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my_write(frm_file, (uchar*) ptr, reader_handle.frm_length, MYF(0));
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my_close(frm_file, MYF(0));
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my_free(ptr);
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}
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end:
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printf("\n");
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azclose(&reader_handle);
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return 0;
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}
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static my_bool
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get_one_option(int optid,
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const struct my_option *opt __attribute__((unused)),
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char *argument)
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{
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switch (optid) {
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case 'b':
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opt_backup= 1;
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break;
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case 'c':
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opt_check= 1;
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break;
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case 'e':
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opt_extract_frm= 1;
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break;
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case 'f':
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opt_force= 1;
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printf("Not implemented yet\n");
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break;
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case 'q':
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opt_quiet= 1;
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printf("Not implemented yet\n");
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break;
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case 'V':
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print_version();
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exit(0);
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case 't':
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printf("Not implemented yet\n");
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break;
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case 'A':
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opt_autoincrement= 1;
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if (argument)
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new_auto_increment_value= strtoull(argument, NULL, 0);
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else
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new_auto_increment_value= 0;
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break;
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case '?':
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usage();
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exit(0);
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case '#':
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if (argument == disabled_my_option)
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{
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DBUG_POP();
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}
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else
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{
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DBUG_PUSH(argument ? argument : "d:t:o,/tmp/archive_reader.trace");
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}
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break;
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}
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return 0;
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}
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static struct my_option my_long_options[] =
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{
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{"backup", 'b',
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"Make a backup of an archive table.",
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0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0},
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{"check", 'c', "Check table for errors.",
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0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0},
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#ifndef DBUG_OFF
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{"debug", '#',
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"Output debug log. Often this is 'd:t:o,filename'.",
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0, 0, 0, GET_STR, OPT_ARG, 0, 0, 0, 0, 0, 0},
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#endif
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{"extract-frm", 'e',
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"Extract the frm file.",
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0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0},
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{"force", 'f',
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"Restart with -r if there are any errors in the table.",
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0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0},
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{"help", '?',
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"Display this help and exit.",
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0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0},
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{"quick", 'q', "Faster repair by not modifying the data file.",
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0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0},
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{"repair", 'r', "Repair a damaged Archive version 3 or above file.",
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0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0},
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{"set-auto-increment", 'A',
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"Force auto_increment to start at this or higher value. If no value is given, then sets the next auto_increment value to the highest used value for the auto key + 1.",
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&new_auto_increment, &new_auto_increment,
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0, GET_ULL, OPT_ARG, 0, 0, 0, 0, 0, 0},
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{"silent", 's',
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"Only print errors. One can use two -s to make archive_reader very silent.",
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0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0},
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{"tmpdir", 't',
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"Path for temporary files.",
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&opt_tmpdir,
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0, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
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{"version", 'V',
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"Print version and exit.",
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0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0},
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{ 0, 0, 0, 0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0}
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};
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static void usage(void)
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{
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print_version();
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puts("Copyright 2007-2008 MySQL AB, 2008 Sun Microsystems, Inc.");
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puts("This software comes with ABSOLUTELY NO WARRANTY. This is free software,\nand you are welcome to modify and redistribute it under the GPL license\n");
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puts("Read and modify Archive files directly\n");
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printf("Usage: %s [OPTIONS] file_to_be_looked_at [file_for_backup]\n", my_progname);
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print_defaults("my", load_default_groups);
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my_print_help(my_long_options);
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}
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static void print_version(void)
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{
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printf("%s Ver %s Distrib %s, for %s (%s)\n", my_progname, SHOW_VERSION,
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MYSQL_SERVER_VERSION, SYSTEM_TYPE, MACHINE_TYPE);
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}
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static void get_options(int *argc, char ***argv)
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{
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if (load_defaults("my", load_default_groups, argc, argv))
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exit(1);
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default_argv= *argv;
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handle_options(argc, argv, my_long_options, get_one_option);
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if (*argc == 0)
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{
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usage();
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exit(-1);
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}
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return;
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} /* get options */
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