Atlas/src/mysql-myisam-dump.c at sharding · JavaDevelopRep/Atlas

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/* $%BEGINLICENSE%$

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; version 2 of the

License.

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., 51 Franklin St, Fifth Floor, Boston, MA

02110-1301 USA

$%ENDLICENSE%$ */

#include <stdlib.h>

#include <unistd.h>

#include <fcntl.h>

#include <errno.h>

#include <glib/gstdio.h>

#ifdef HAVE_CONFIG_H

#include "config.h"

#endif

#include <lua.h>

#include "glib-ext.h"

#include "chassis-mainloop.h"

#include "chassis-log.h"

#include "chassis-keyfile.h"

#include "network-mysqld-proto.h"

#define S(x) x->str, x->len

typedef struct {

MYSQL_FIELD *fielddef;

union {

guint64 i;

gchar *s;

} data;

guint64 data_len;

gboolean is_null;

} network_mysqld_proto_field;

network_mysqld_proto_field *network_mysqld_proto_field_new() {

network_mysqld_proto_field *field;

field = g_new0(network_mysqld_proto_field, 1);

return field;

}

void network_mysqld_proto_field_free(network_mysqld_proto_field *field) {

if (!field) return;

switch ((guchar)field->fielddef->type) {

case MYSQL_TYPE_TIMESTAMP:

case MYSQL_TYPE_DATE:

case MYSQL_TYPE_DATETIME:

case MYSQL_TYPE_TINY:

case MYSQL_TYPE_SHORT:

case MYSQL_TYPE_INT24:

case MYSQL_TYPE_LONG:

case MYSQL_TYPE_DECIMAL:

case MYSQL_TYPE_NEWDECIMAL:

case MYSQL_TYPE_ENUM:

break;

case MYSQL_TYPE_BLOB:

case MYSQL_TYPE_VARCHAR:

case MYSQL_TYPE_VAR_STRING:

case MYSQL_TYPE_STRING:

if (field->data.s) g_free(field->data.s);

break;

default:

g_message("%s: unknown field_type to free: %d",

G_STRLOC,

field->fielddef->type);

break;

}

g_free(field);

}

int network_mysqld_proto_field_get(network_packet *packet,

network_mysqld_proto_field *field) {

guint64 length;

guint8 i8;

guint16 i16;

guint32 i32;

guint64 i64;

int err = 0;

switch ((guchar)field->fielddef->type) {

case MYSQL_TYPE_TIMESTAMP: /* int4store */

case MYSQL_TYPE_LONG:

err = err || network_mysqld_proto_get_int32(packet, &i32);

if (!err) field->data.i = i32;

break;

case MYSQL_TYPE_DATETIME: /* int8store */

case MYSQL_TYPE_LONGLONG:

err = err || network_mysqld_proto_get_int64(packet, &i64);

if (!err) field->data.i = i64;

break;

case MYSQL_TYPE_INT24:

case MYSQL_TYPE_DATE: /* int3store, a newdate, old-data is 4 byte */

err = err || network_mysqld_proto_get_int24(packet, &i32);

if (!err) field->data.i = i32;

break;

case MYSQL_TYPE_SHORT:

err = err || network_mysqld_proto_get_int16(packet, &i16);

if (!err) field->data.i = i16;

break;

case MYSQL_TYPE_TINY:

err = err || network_mysqld_proto_get_int8(packet, &i8);

if (!err) field->data.i = i8;

break;

case MYSQL_TYPE_ENUM:

switch (field->fielddef->max_length) {

case 1:

err = err || network_mysqld_proto_get_int8(packet, &i8);

if (!err) field->data.i = i8;

break;

case 2:

err = err || network_mysqld_proto_get_int16(packet, &i16);

if (!err) field->data.i = i16;

break;

default:

g_error("%s: enum-length = %lu",

G_STRLOC,

field->fielddef->max_length);

break;

}

break;

case MYSQL_TYPE_BLOB:

switch (field->fielddef->max_length) {

case 1:

err = err || network_mysqld_proto_get_int8(packet, &i8);

if (!err) length = i8;

break;

case 2:

err = err || network_mysqld_proto_get_int16(packet, &i16);

if (!err) length = i16;

break;

case 3:

err = err || network_mysqld_proto_get_int24(packet, &i32);

if (!err) length = i32;

break;

case 4:

err = err || network_mysqld_proto_get_int32(packet, &i32);

if (!err) length = i32;

break;

default:

/* unknown blob-length */

g_debug_hexdump(G_STRLOC, S(packet->data));

g_error("%s: blob-length = %lu",

G_STRLOC,

field->fielddef->max_length);

break;

}

err = err || network_mysqld_proto_get_string_len(packet, &field->data.s, length);

break;

case MYSQL_TYPE_VARCHAR:

case MYSQL_TYPE_VAR_STRING:

case MYSQL_TYPE_STRING:

if (field->fielddef->max_length < 256) {

err = err || network_mysqld_proto_get_int8(packet, &i8);

err = err || network_mysqld_proto_get_string_len(packet, &field->data.s, i8);

} else {

err = err || network_mysqld_proto_get_int16(packet, &i16);

err = err || network_mysqld_proto_get_string_len(packet, &field->data.s, i16);

}

break;

case MYSQL_TYPE_NEWDECIMAL: {

/* the decimal is binary encoded

guchar digits_per_bytes[] = { 0, 1, 1, 2, 2, 3, 3, 4, 4, 4 }; /* how many bytes are needed to store x decimal digits */

guint i_digits = field->fielddef->max_length - field->fielddef->decimals;

guint f_digits = field->fielddef->decimals;

guint decimal_full_blocks = i_digits / 9; /* 9 decimal digits in 4 bytes */

guint decimal_last_block_digits = i_digits % 9; /* how many digits are left ? */

guint scale_full_blocks = f_digits / 9; /* 9 decimal digits in 4 bytes */

guint scale_last_block_digits = f_digits % 9; /* how many digits are left ? */

guint size = 0;

size += decimal_full_blocks * digits_per_bytes[9] + digits_per_bytes[decimal_last_block_digits];

size += scale_full_blocks * digits_per_bytes[9] + digits_per_bytes[scale_last_block_digits];

#if 0

g_debug_hexdump(G_STRLOC " (NEWDECIMAL)", packet->data->str, packet->data->len);

#endif

#if 0

g_critical("%s: don't know how to decode NEWDECIMAL(%lu, %u) at offset %u (%d)",

G_STRLOC,

field->fielddef->max_length,

field->fielddef->decimals,

packet->offset,

size

);

#endif

err = err || network_mysqld_proto_skip(packet, size);

break; }

default:

g_debug_hexdump(G_STRLOC, packet->data->str, packet->data->len);

g_error("%s: unknown field-type to fetch: %d",

G_STRLOC,

field->fielddef->type);

break;

}

return err ? -1 : 0;

}

GPtrArray *network_mysqld_proto_fields_new_full(

GPtrArray *fielddefs,

gchar *null_bits,

guint G_GNUC_UNUSED null_bits_len) {

GPtrArray *fields;

guint i;

fields = g_ptr_array_new();

for (i = 0; i < fielddefs->len; i++) {

MYSQL_FIELD *fielddef = fielddefs->pdata[i];

network_mysqld_proto_field *field = network_mysqld_proto_field_new();

guint byteoffset = i / 8;

guint bitoffset = i % 8;

field->fielddef = fielddef;

field->is_null = (null_bits[byteoffset] >> bitoffset) & 0x1;

/* the field is defined as NOT NULL, so the null-bit shouldn't be set */

if ((fielddef->flags & NOT_NULL_FLAG) != 0) {

if (field->is_null) {

g_error("%s: [%d] field is defined as NOT NULL, but nul-bit is set",

G_STRLOC,

);

}

g_ptr_array_add(fields, field);

}

return fields;

}

int network_mysqld_proto_fields_get(network_packet *packet, GPtrArray *fields) {

guint i;

for (i = 0; i < fields->len; i++) {

network_mysqld_proto_field *field = fields->pdata[i];

if (!field->is_null) {

if (network_mysqld_proto_field_get(packet, field)) return -1;

}

return 0;

}

void network_mysqld_proto_fields_free(GPtrArray *fields) {

guint i;

if (!fields) return;

for (i = 0; i < fields->len; i++) {

network_mysqld_proto_field_free(fields->pdata[i]);

}

g_ptr_array_free(fields, TRUE);

}

struct {

enum enum_field_types type;

const char *name;

} field_type_name[] = {

{ MYSQL_TYPE_STRING, "CHAR" },

{ MYSQL_TYPE_VARCHAR, "VARCHAR" },

{ MYSQL_TYPE_BLOB, "BLOB" },

{ MYSQL_TYPE_TINY, "TINYINT" },

{ MYSQL_TYPE_SHORT, "SMALLINT" },

{ MYSQL_TYPE_INT24, "MEDIUMINT" },

{ MYSQL_TYPE_LONG, "INT" },

{ MYSQL_TYPE_NEWDECIMAL, "DECIMAL" },

{ MYSQL_TYPE_ENUM, "ENUM" },

{ MYSQL_TYPE_TIMESTAMP, "TIMESTAMP" },

{ MYSQL_TYPE_DATE, "DATE" },

{ MYSQL_TYPE_DATETIME, "DATETIME" },

{ 0, NULL }

};

const char *network_mysqld_proto_field_get_typestring(enum enum_field_types type) {

static const char *unknown_type = "UNKNOWN";

guint i;

for (i = 0; field_type_name[i].name; i++) {

if ((guchar)field_type_name[i].type == (guchar)type) return field_type_name[i].name;

}

g_critical("%s: field-type %d isn't known yet",

G_STRLOC,

type);

return unknown_type;

}

typedef struct {

guint16 fieldnr;

guint16 offset;

guint16 key_type;

guint8 flags;

guint16 length;

} network_mysqld_keypart;

network_mysqld_keypart *network_mysqld_keypart_new() {

network_mysqld_keypart *keypart;

keypart = g_new0(network_mysqld_keypart, 1);

return keypart;

}

void network_mysqld_keypart_free(network_mysqld_keypart *keypart) {

if (!keypart) return;

g_free(keypart);

}

typedef struct {

guint16 flags;

guint16 key_length;

guint8 key_parts;

guint8 algorithm;

guint16 block_size;

GPtrArray *parts;

GString *name;

} network_mysqld_keyinfo;

network_mysqld_keyinfo *network_mysqld_keyinfo_new() {

network_mysqld_keyinfo *keyinfo;

keyinfo = g_new0(network_mysqld_keyinfo, 1);

keyinfo->parts = g_ptr_array_new();

keyinfo->name = g_string_new(NULL);

return keyinfo;

}

void network_mysqld_keyinfo_free(network_mysqld_keyinfo *keyinfo) {

guint i;

if (!keyinfo) return;

for (i = 0; i < keyinfo->parts->len; i++) {

network_mysqld_keypart_free(keyinfo->parts->pdata[i]);

}

g_ptr_array_free(keyinfo->parts, TRUE);

g_string_free(keyinfo->name, TRUE);

g_free(keyinfo);

}

typedef struct {

guint16 field_len;

guint32 rec_pos;

guint16 pack_flags;

guint8 unireg_type;

guint8 col_values_ndx;

guint16 comment_len;

guint8 field_type;

guint8 geom_type;

guint8 charset;

GString *name;

GString *comment;

} network_mysqld_column_def;

network_mysqld_column_def *network_mysqld_column_def_new() {

network_mysqld_column_def *column_def;

column_def = g_new0(network_mysqld_column_def, 1);

column_def->name = g_string_new(NULL);

column_def->comment = g_string_new(NULL);

return column_def;

}

void network_mysqld_column_def_free(network_mysqld_column_def *column_def) {

if (!column_def) return;

g_string_free(column_def->name, TRUE);

g_string_free(column_def->comment, TRUE);

g_free(column_def);

}

typedef struct {

guint8 row;

GString *field_name;

} network_mysqld_screen_field;

network_mysqld_screen_field *network_mysqld_screen_field_new() {

network_mysqld_screen_field *screen_field;

screen_field = g_new0(network_mysqld_screen_field, 1);

screen_field->field_name = g_string_new(NULL);

return screen_field;

}

void network_mysqld_screen_field_free(network_mysqld_screen_field *screen_field) {

if (!screen_field) return;

g_string_free(screen_field->field_name, TRUE);

g_free(screen_field);

}

typedef struct {

guint16 len;

guint8 fields_on_screen;

guint8 start_row;

guint8 col_1;

GPtrArray *fields;

} network_mysqld_screen;

network_mysqld_screen *network_mysqld_screen_new() {

network_mysqld_screen *screen;

screen = g_new0(network_mysqld_screen, 1);

screen->fields = g_ptr_array_new();

return screen;

}

void network_mysqld_screen_free(network_mysqld_screen *screen) {

guint i;

if (!screen) return;

for (i = 0; i < screen->fields->len; i++) {

network_mysqld_screen_field_free(screen->fields->pdata[i]);

}

g_ptr_array_free(screen->fields, TRUE);

g_free(screen);

}

typedef struct {

guint8 frm_version;

guint8 db_type;

guint8 flags;

guint16 key_info_offset;

guint16 key_info_length;

guint32 length;

guint16 rec_length;

guint32 max_rows;

guint32 min_rows;

guint8 new_field_pack_flag;

guint32 key_length;

guint16 table_options;

guint32 avg_row_length;

guint8 default_table_charset;

guint8 row_type;

guint32 mysqld_version;

guint32 extra_size;

guint16 extra_rec_buf_length;

guint8 default_part_db_type;

guint16 key_block_size;

guint16 key_num;

guint16 key_parts;

guint16 key_extra_length;

GPtrArray *keyinfo;

GPtrArray *columns;

GPtrArray *col_values; /* ENUM and SET map a int to a string */

GPtrArray *screens;

GString *connect_string;

GString *se_name;

GString *comment;

guint16 col_count;

guint16 col_names_len;

guint16 col_values_count; /* number of values for the ENUM/SET */

guint16 col_values_parts; /* ... */

guint16 col_values_len; /* byte-length of the ENUM-values */

guint16 col_null_fields;

guint16 col_comments_len; /* byte-length of the comment-section */

guint16 screens_len; /* byte-length of the screens section */

guint8 screens_count; /* number of screens */

guint16 __totlength;

guint16 __no_empty;

guint16 __rec_length;

guint16 __time_stamp_pos;

guint16 __cols_needed;

guint16 __rows_needed;

guint16 names_len;

guint16 names_count;

guint32 forminfo_offset;

guint16 forminfo_len;

} network_mysqld_frm;

network_mysqld_frm *network_mysqld_frm_new() {

network_mysqld_frm *frm;

frm = g_new0(network_mysqld_frm, 1);

frm->keyinfo = g_ptr_array_new();

frm->columns = g_ptr_array_new();

frm->col_values = g_ptr_array_new();

frm->screens = g_ptr_array_new();

frm->se_name = g_string_new(NULL);

frm->connect_string = g_string_new(NULL);

frm->comment = g_string_new(NULL);

return frm;

}

void network_mysqld_frm_free(network_mysqld_frm *frm) {

guint i;

if (!frm) return;

for (i = 0; i < frm->keyinfo->len; i++) {

network_mysqld_keyinfo_free(frm->keyinfo->pdata[i]);

}

g_ptr_array_free(frm->keyinfo, TRUE);

for (i = 0; i < frm->columns->len; i++) {

network_mysqld_column_def_free(frm->columns->pdata[i]);

}

g_ptr_array_free(frm->columns, TRUE);

for (i = 0; i < frm->screens->len; i++) {

network_mysqld_screen_free(frm->screens->pdata[i]);

}

g_ptr_array_free(frm->screens, TRUE);

for (i = 0; i < frm->col_values->len; i++) {

guint j;

GPtrArray *values = frm->col_values->pdata[i];

for (j = 0; j < values->len; j++) {

g_string_free(values->pdata[i], TRUE);

}

g_ptr_array_free(values, TRUE);

}

g_ptr_array_free(frm->col_values, TRUE);

g_string_free(frm->se_name, TRUE);

g_string_free(frm->connect_string, TRUE);

g_string_free(frm->comment, TRUE);

g_free(frm);

}

int network_mysqld_proto_get_frm(network_packet *packet, network_mysqld_frm *frm) {

guint i;

int err = 0;

guint8 key_num_len;

guint16 u16_key_length;

guint32 u32_key_length; /* used if u16_key_info_length == 0xffff */

guint8 __dummy;

if (packet->data->str[0] != '\xfe' ||

packet->data->str[1] != '\x01') {

g_critical("%s: frm-header should be: %02x%02x, got %02x%02x",

G_STRLOC,

'\xfe', '\x01',

packet->data->str[0],

packet->data->str[1]

);

g_return_val_if_reached(-1);

}

err = err || network_mysqld_proto_skip(packet, 2);

err = err || network_mysqld_proto_get_int8(packet, &frm->frm_version);

err = err || network_mysqld_proto_get_int8(packet, &frm->db_type);

err = err || network_mysqld_proto_get_int16(packet, &frm->names_len); /* table.cc -> get_form_pos().length */

err = err || network_mysqld_proto_get_int16(packet, &frm->key_info_offset); /* a pointer into this file */

err = err || network_mysqld_proto_get_int16(packet, &frm->names_count); /* table.cc -> get_form_pos().names */

err = err || network_mysqld_proto_get_int32(packet, &frm->length);

err = err || network_mysqld_proto_get_int16(packet, &u16_key_length); /* if key_length > 0xffff stored in u32_key_length */

err = err || network_mysqld_proto_get_int16(packet, &frm->rec_length);

err = err || network_mysqld_proto_get_int32(packet, &frm->max_rows);

err = err || network_mysqld_proto_get_int32(packet, &frm->min_rows);

err = err || network_mysqld_proto_get_int8(packet, &frm->flags); /* 0: system-table, 1: crypted */

err = err || network_mysqld_proto_get_int8(packet, &frm->new_field_pack_flag); /* new_field_pack_flag */

err = err || network_mysqld_proto_get_int16(packet, &frm->key_info_length);

err = err || network_mysqld_proto_get_int16(packet, &frm->table_options); /* db_create_options ( create_info->table_options) HA_OPTION_* */

err = err || network_mysqld_proto_skip(packet, 1); /* always 00 */

err = err || network_mysqld_proto_skip(packet, 1); /* major-mysql-version: 05 */

err = err || network_mysqld_proto_get_int32(packet, &frm->avg_row_length);

err = err || network_mysqld_proto_get_int8(packet, &frm->default_table_charset);

err = err || network_mysqld_proto_skip(packet, 1); /* 0-1: transactional, 2-3: page_checksum */

err = err || network_mysqld_proto_get_int8(packet, &frm->row_type);

err = err || network_mysqld_proto_skip(packet, 6); /* always 00 */

err = err || network_mysqld_proto_get_int32(packet, &u32_key_length);

err = err || network_mysqld_proto_get_int32(packet, &frm->mysqld_version);

err = err || network_mysqld_proto_get_int32(packet, &frm->extra_size);

err = err || network_mysqld_proto_get_int16(packet, &frm->extra_rec_buf_length);

err = err || network_mysqld_proto_get_int8(packet, &frm->default_part_db_type);

err = err || network_mysqld_proto_get_int16(packet, &frm->key_block_size);

err = err || network_mysqld_proto_skip(packet, frm->names_len); /* skip the "form-names" (table.cc -> get_form_pos()) */

err = err || network_mysqld_proto_get_int32(packet, &frm->forminfo_offset);

/* key info */

err = err || (frm->key_info_offset > packet->data->len);

err = err || (frm->key_info_offset + frm->key_info_length > packet->data->len);

if (err) return -1;

frm->key_length = (u16_key_length == 0xffff) ? u32_key_length : u16_key_length;

packet->offset = frm->key_info_offset;

err = err || network_mysqld_proto_peek_int8(packet, &key_num_len);

if (err) return -1;

/* if we have less than 128 keys, we use one byte, if more two bytes */

if (key_num_len < 128) {

guint8 key_num0;

guint8 key_parts0;

err = err || network_mysqld_proto_get_int8(packet, &key_num0);

err = err || network_mysqld_proto_get_int8(packet, &key_parts0);

frm->key_num = key_num0;

frm->key_parts = key_parts0;

network_mysqld_proto_skip(packet, 2);

} else {

guint8 key_num0;

guint8 key_num1;

err = err || network_mysqld_proto_get_int8(packet, &key_num0);

err = err || network_mysqld_proto_get_int8(packet, &key_num1);

err = err || network_mysqld_proto_get_int16(packet, &frm->key_parts);

frm->key_num = (key_num0 & 0x7f) | (key_num1 << 7);

}

err = err || network_mysqld_proto_get_int16(packet, &frm->key_extra_length);

for (i = 0; i < frm->key_num; i++) {

guint j;

network_mysqld_keyinfo *key;

key = network_mysqld_keyinfo_new();

err = err || network_mysqld_proto_get_int16(packet, &key->flags);

err = err || network_mysqld_proto_get_int16(packet, &key->key_length);

err = err || network_mysqld_proto_get_int8(packet, &key->key_parts);

err = err || network_mysqld_proto_get_int8(packet, &key->algorithm);

err = err || network_mysqld_proto_get_int16(packet, &key->block_size);

for (j = 0; j < key->key_parts; j++) {

network_mysqld_keypart *part;

part = network_mysqld_keypart_new();

err = err || network_mysqld_proto_get_int16(packet, &part->fieldnr);

if (!err) part->fieldnr &= 16383; /* FIELD_NR_MASK */

err = err || network_mysqld_proto_get_int16(packet, &part->offset);

if (!err) part->offset -= 1;

err = err || network_mysqld_proto_get_int8(packet, &part->flags);

err = err || network_mysqld_proto_get_int16(packet, &part->key_type);

err = err || network_mysqld_proto_get_int16(packet, &part->length);

g_ptr_array_add(key->parts, part);

}

g_ptr_array_add(frm->keyinfo, key);

}

err = err || network_mysqld_proto_get_int8(packet, &__dummy);

err = err || (__dummy != (guchar)'\xff'); /* NAMES_SEP_CHAR */

/* get the keynames */

for (i = 0; i < frm->key_num; i++) {

guint pos;

network_mysqld_keyinfo *key = frm->keyinfo->pdata[i];

/* find the next NAMES_SEP_CHAR as string-term */

err = err || network_mysqld_proto_find_int8(packet, '\xff', &pos);

if (pos) err = err || network_mysqld_proto_get_gstring_len(packet, pos - 1, key->name);

err = err || network_mysqld_proto_skip(packet, 1); /* skip the \xff */

}

if (frm->rec_length) {

guint8 comment_length;

/* forminfo */

packet->offset = frm->forminfo_offset;

err = err || network_mysqld_proto_get_int16(packet, &frm->forminfo_len);

err = err || network_mysqld_proto_skip(packet, 44);

err = err || network_mysqld_proto_get_int8(packet, &comment_length);

err = err || network_mysqld_proto_get_gstring_len(packet, comment_length, frm->comment);

packet->offset = frm->forminfo_offset + 256;

err = err || network_mysqld_proto_get_int8(packet, &frm->screens_count);

err = err || network_mysqld_proto_skip(packet, 1);

err = err || network_mysqld_proto_get_int16(packet, &frm->col_count); /* number of fields (field_nr) */

err = err || network_mysqld_proto_get_int16(packet, &frm->screens_len); /* length of the screens section (info_length) */

err = err || network_mysqld_proto_get_int16(packet, &frm->__totlength); /* (totlength) */

err = err || network_mysqld_proto_get_int16(packet, &frm->__no_empty); /* (no_empty) */

err = err || network_mysqld_proto_get_int16(packet, &frm->__rec_length); /* (rec_length) */

err = err || network_mysqld_proto_get_int16(packet, &frm->col_names_len); /* length of the names-section ( n_length) */

err = err || network_mysqld_proto_get_int16(packet, &frm->col_values_count); /* ( interval_count ) */

err = err || network_mysqld_proto_get_int16(packet, &frm->col_values_parts); /* ( interval_parts ) */

err = err || network_mysqld_proto_get_int16(packet, &frm->col_values_len); /* length of the enum-values section ( int_length) */

err = err || network_mysqld_proto_get_int16(packet, &frm->__time_stamp_pos); /* */

err = err || network_mysqld_proto_get_int16(packet, &frm->__cols_needed); /* */

err = err || network_mysqld_proto_get_int16(packet, &frm->__rows_needed); /* */

err = err || network_mysqld_proto_get_int16(packet, &frm->col_null_fields); /* + 282 */

err = err || network_mysqld_proto_get_int16(packet, &frm->col_comments_len); /* length of the comments section */

err = err || network_mysqld_proto_skip(packet, 2); /* + 286 -> 288 */

g_assert_cmpint(frm->forminfo_offset + 288, ==, packet->offset);

/* screens */

for (i = 0; i < frm->screens_count; i++) {

network_mysqld_screen *screen;

guint8 s_len;

guint j;

screen = network_mysqld_screen_new();

err = err || network_mysqld_proto_get_int16(packet, &screen->len);

err = err || network_mysqld_proto_skip(packet, 1);

err = err || network_mysqld_proto_get_int8(packet, &screen->fields_on_screen);

err = err || network_mysqld_proto_get_int8(packet, &screen->start_row);

err = err || network_mysqld_proto_skip(packet, 1);

err = err || network_mysqld_proto_get_int8(packet, &screen->col_1);

err = err || network_mysqld_proto_skip(packet, screen->col_1); /* well, those are just space */

for (j = 0; j < screen->fields_on_screen; j++) {

network_mysqld_screen_field *fld;

fld = network_mysqld_screen_field_new();

err = err || network_mysqld_proto_get_int8(packet, &fld->row);

err = err || network_mysqld_proto_skip(packet, 1);

err = err || network_mysqld_proto_get_int8(packet, &s_len);

err = err || network_mysqld_proto_get_gstring_len(packet, s_len - 1, fld->field_name);

err = err || network_mysqld_proto_skip(packet, 1); /* skip the trailing zero */

g_ptr_array_add(screen->fields, fld);

}

g_ptr_array_add(frm->screens, screen);

}

/* array of ( fields * field_pack_length ) */

for (i = 0; i < frm->col_count; i++) {

network_mysqld_column_def *col;

guint8 u8_p14;

col = network_mysqld_column_def_new();

err = err || network_mysqld_proto_skip(packet, 3);

err = err || network_mysqld_proto_get_int16(packet, &col->field_len);

err = err || network_mysqld_proto_get_int24(packet, &col->rec_pos);

err = err || network_mysqld_proto_get_int16(packet, &col->pack_flags);

err = err || network_mysqld_proto_get_int8(packet, &col->unireg_type);

err = err || network_mysqld_proto_skip(packet, 1);

err = err || network_mysqld_proto_get_int8(packet, &col->col_values_ndx);

err = err || network_mysqld_proto_get_int8(packet, &col->field_type);

err = err || network_mysqld_proto_get_int8(packet, &u8_p14); /* geom_type || charset */

err = err || network_mysqld_proto_get_int16(packet, &col->comment_len);

if (!err) {

if (u8_p14 == MYSQL_TYPE_GEOMETRY) {

col->geom_type = u8_p14;

} else {

col->charset = u8_p14;

}

g_ptr_array_add(frm->columns, col);

}

err = err || network_mysqld_proto_get_int8(packet, &__dummy);

err = err || (__dummy != (guchar)'\xff'); /* NAMES_SEP_CHAR */

/* next are the column-names */

for (i = 0; i < frm->columns->len; i++) {

guint pos;

network_mysqld_column_def *col = frm->columns->pdata[i];

/* find the next NAMES_SEP_CHAR as string-term */

err = err || network_mysqld_proto_find_int8(packet, '\xff', &pos);

if (!err && pos) {

err = err || network_mysqld_proto_get_gstring_len(packet, pos - 1, col->name);

}

err = err || network_mysqld_proto_skip(packet, 1); /* skip the \xff */

}

err = err || network_mysqld_proto_skip(packet, 1); /* the term-nul */

/* enum-values

* list of enum|set values

* */

for (i = 0; i < frm->col_values_count; i++) {

GPtrArray *v = NULL;

err = err || network_mysqld_proto_get_int8(packet, &__dummy);

err = err || (__dummy != (guchar)'\xff'); /* NAMES_SEP_CHAR */

do {

GString *s;

guint pos;

guint8 term_nul;

err = err || network_mysqld_proto_peek_int8(packet, &term_nul);

if (!err && (term_nul == '\x00')) {

err = err || network_mysqld_proto_skip(packet, 1); /* the term-nul */

break;

}

s = g_string_new("");

err = err || network_mysqld_proto_find_int8(packet, '\xff', &pos);

if (!err && pos) {

err = err || network_mysqld_proto_get_gstring_len(packet, pos - 1, s);

}

err = err || network_mysqld_proto_skip(packet, 1); /* skip the \xff */

if (!v) v = g_ptr_array_new();

g_ptr_array_add(v, s);

} while (!err);

if (v) g_ptr_array_add(frm->col_values, v);

}

/* next are the column-comments */

g_debug_hexdump(G_STRLOC, packet->data->str + packet->offset, packet->data->len - packet->offset);

}

if (frm->extra_size) {

guint16 connect_string_len;

guint16 se_name_len;

packet->offset = frm->key_info_offset + frm->key_length + frm->rec_length; /* this block is reclength */

err = err || network_mysqld_proto_get_int16(packet, &connect_string_len);

err = err || network_mysqld_proto_get_gstring_len(packet, connect_string_len, frm->connect_string);

err = err || network_mysqld_proto_get_int16(packet, &se_name_len);

err = err || network_mysqld_proto_get_gstring_len(packet, se_name_len, frm->se_name);

}

return err ? -1 : 0;

}

void network_mysqld_frm_print(network_mysqld_frm *frm) {

guint i;

#define V0_C(st, x, format, comment) g_print(" %-22s: %" format " %s\n", #x, st->x, comment)

#define V0_S(st, x, format) g_print(" %-22s: '%" format "'\n", #x, st->x->len ? st->x->str : "")

#define V0(st, x, format) V0_C(st, x, format, "")

#define V1_C_raw(var, name, format, comment) g_print(" [%d] %-18s: %" format " %s\n", i, name, var, comment)

#define V1_raw(var, name, format) V1_C_raw(var, name, format, "")

#define V1_C(st, x, format, comment) V1_C_raw(st->x, #x, format, comment)

#define V1_S(st, x, format) V1_C_raw(st->x->len ? st->x->str : "", #x, format, "")

#define V1(st, x, format) V1_C(st, x, format, "")

#define V2_C(st, x, format, comment) g_print(" [%d] %-16s: %" format " %s\n", j, #x, st->x, comment)

#define V2_S_raw(var, name, format) g_print(" [%d] %-16s: '%" format "'\n", j, name, var->len ? var->str : "")

#define V2_S(st, x, format) V2_S_raw(st->x, #x, format)

#define V2(st, x, format) V2_C(st, x, format, "")

g_print("frm-Header\n");

V0(frm, frm_version, "d");

V0(frm, db_type, "d");

V0(frm, flags, "d");

V0_C(frm, key_info_offset, "d", "-- absolute offset of the key-info-block");

V0(frm, key_info_length, G_GUINT32_FORMAT);

V0(frm, names_len, "d");

V0(frm, names_count, "d");

V0(frm, length, "d");

V0(frm, rec_length, "d");

V0(frm, max_rows, G_GUINT32_FORMAT);

V0(frm, min_rows, G_GUINT32_FORMAT);

V0(frm, new_field_pack_flag, "d");

V0(frm, key_length, "d");

V0(frm, table_options, "d");

V0(frm, avg_row_length, G_GUINT32_FORMAT);

V0(frm, default_table_charset, "d");

V0(frm, row_type, "d");

V0(frm, mysqld_version, G_GUINT32_FORMAT);

V0(frm, extra_size, G_GUINT32_FORMAT);

V0(frm, extra_rec_buf_length, "d");

V0(frm, default_part_db_type, "d");

V0(frm, key_block_size, "d");

V0_C(frm, forminfo_offset, "d", "-- absolute offset of the form-info-block");

V0_C(frm, forminfo_len, "d", "-- len of the form-info-block");

g_print("Screens\n");

V0_C(frm, screens_len, "d", "-- length of the screens block");

V0(frm, screens_count, "d");

V0(frm, __totlength, "d");

V0(frm, __rec_length, "d");

V0(frm, __no_empty, "d");

V0(frm, __time_stamp_pos, "d");

V0(frm, __rows_needed, "d");

V0(frm, __cols_needed, "d");

for (i = 0; i < frm->screens->len; i++) {

network_mysqld_screen *screen = frm->screens->pdata[i];

guint j;

g_print("\n");

V1(screen, start_row, "d");

V1(screen, fields_on_screen, "d");

V1(screen, col_1, "d");

for (j = 0; j < screen->fields->len; j++) {

network_mysqld_screen_field *fld = screen->fields->pdata[j];

V2_S(fld, field_name, "s");

V2(fld, row, "d");

}

g_print("Colums\n");

V0_C(frm, col_count, "d", "-- number of fields on the table");

V0_C(frm, col_names_len, "d", "-- length of the col_names block");

V0(frm, col_values_count, "d");

V0(frm, col_values_parts, "d");

V0(frm, col_values_len, "d");

V0(frm, col_null_fields, "d");

V0(frm, col_comments_len, "d");

for (i = 0; i < frm->columns->len; i++) {

network_mysqld_column_def *col = frm->columns->pdata[i];

g_print("\n");

V1_S(col, name, "s");

V1_C(col, field_len, "d", "-- display width for INT");

V1(col, rec_pos, "d");

V1_raw(network_mysqld_proto_field_get_typestring(col->field_type), "field_type", "s");

V1(col, charset, "d");

V1(col, unireg_type, "d");

V1(col, pack_flags, "x");

V1(col, comment_len, "d");

V1(col, col_values_ndx, "d");

if (col->col_values_ndx) {

guint j;

GPtrArray *v;

g_assert_cmpint(col->col_values_ndx, >, 0);

g_assert_cmpint(col->col_values_ndx - 1, <, frm->col_values->len);

v = frm->col_values->pdata[col->col_values_ndx - 1];

for (j = 0; j < v->len; j++) {

GString *s = v->pdata[j];

V2_S_raw(s, "enum|set", "s");

}

g_print("Keys\n");

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