/* Copyright (C) 2000 MySQL AB This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ /* mysqldump.c - Dump a tables contents and format to an ASCII file ** ** The author's original notes follow :- ** ** AUTHOR: Igor Romanenko (igor@frog.kiev.ua) ** DATE: December 3, 1994 ** WARRANTY: None, expressed, impressed, implied ** or other ** STATUS: Public domain ** Adapted and optimized for MySQL by ** Michael Widenius, Sinisa Milivojevic, Jani Tolonen ** -w --where added 9/10/98 by Jim Faucette ** slave code by David Saez Padros ** master/autocommit code by Brian Aker ** SSL by ** Andrei Errapart ** Tõnu Samuel ** XML by Gary Huntress 10/10/01, cleaned up ** and adapted to mysqldump 05/11/01 by Jani Tolonen */ #define DUMP_VERSION "9.05" #include #include #include #include #include "client_priv.h" #include "mysql.h" #include "mysql_version.h" #include "mysqld_error.h" /* Exit codes */ #define EX_USAGE 1 #define EX_MYSQLERR 2 #define EX_CONSCHECK 3 #define EX_EOM 4 /* index into 'show fields from table' */ #define SHOW_FIELDNAME 0 #define SHOW_TYPE 1 #define SHOW_NULL 2 #define SHOW_DEFAULT 4 #define SHOW_EXTRA 5 #define QUOTE_CHAR '`' /* Size of buffer for dump's select query */ #define QUERY_LENGTH 1536 static char *add_load_option(char *ptr, const char *object, const char *statement); static char *field_escape(char *to,const char *from,uint length); static my_bool verbose=0,tFlag=0,cFlag=0,dFlag=0,quick=0, extended_insert = 0, lock_tables=0,ignore_errors=0,flush_logs=0,replace=0, ignore=0,opt_drop=0,opt_keywords=0,opt_lock=0,opt_compress=0, opt_delayed=0,create_options=0,opt_quoted=0,opt_databases=0, opt_alldbs=0,opt_create_db=0,opt_first_slave=0, opt_autocommit=0,opt_master_data,opt_disable_keys=0,opt_xml=0, tty_password=0; static MYSQL mysql_connection,*sock=0; static char insert_pat[12 * 1024],*opt_password=0,*current_user=0, *current_host=0,*path=0,*fields_terminated=0, *lines_terminated=0, *enclosed=0, *opt_enclosed=0, *escaped=0, *where=0, *default_charset; static uint opt_mysql_port=0; static my_string opt_mysql_unix_port=0; static int first_error=0; extern ulong net_buffer_length; static DYNAMIC_STRING extended_row; #include "sslopt-vars.h" FILE *md_result_file; static struct my_option my_long_options[] = { {"all-databases", 'A', "Dump all the databases. This will be same as --databases with all databases selected.", (gptr*) &opt_alldbs, (gptr*) &opt_alldbs, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0}, {"all", 'a', "Include all MySQL specific create options.", (gptr*) &create_options, (gptr*) &create_options, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0}, {"add-drop-table", OPT_DROP, "Add a 'drop table' before each create.", (gptr*) &opt_drop, (gptr*) &opt_drop, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0}, {"add-locks", OPT_LOCKS, "Add locks around insert statements.", (gptr*) &opt_lock, (gptr*) &opt_lock, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0}, {"allow-keywords", OPT_KEYWORDS, "Allow creation of column names that are keywords.", (gptr*) &opt_keywords, (gptr*) &opt_keywords, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0}, {"character-sets-dir", OPT_CHARSETS_DIR, "Directory where character sets are", (gptr*) &charsets_dir, (gptr*) &charsets_dir, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, {"complete-insert", 'c', "Use complete insert statements.", (gptr*) &cFlag, (gptr*) &cFlag, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0}, {"compress", 'C', "Use compression in server/client protocol.", (gptr*) &opt_compress, (gptr*) &opt_compress, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0}, {"databases", 'B', "To dump several databases. Note the difference in usage; In this case no tables are given. All name arguments are regarded as databasenames. 'USE db_name;' will be included in the output.", (gptr*) &opt_databases, (gptr*) &opt_databases, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0}, {"debug", '#', "Output debug log. Often this is 'd:t:o,filename'.", 0, 0, 0, GET_STR, OPT_ARG, 0, 0, 0, 0, 0, 0}, {"default-character-set", OPT_DEFAULT_CHARSET, "Set the default character set.", (gptr*) &default_charset, (gptr*) &default_charset, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, {"delayed-insert", OPT_DELAYED, "Insert rows with INSERT DELAYED.", (gptr*) &opt_delayed, (gptr*) &opt_delayed, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0}, {"disable-keys", 'K', "'/*!40000 ALTER TABLE tb_name DISABLE KEYS */; and '/*!40000 ALTER TABLE tb_name ENABLE KEYS */; will be put in the output.", (gptr*) &opt_disable_keys, (gptr*) &opt_disable_keys, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0}, {"extended-insert", 'e', "Allows utilization of the new, much faster INSERT syntax.", (gptr*) &extended_insert, (gptr*) &extended_insert, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0}, {"fields-terminated-by", OPT_FTB, "Fields in the textfile are terminated by ...", (gptr*) &fields_terminated, (gptr*) &fields_terminated, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, {"fields-enclosed-by", OPT_ENC, "Fields in the importfile are enclosed by ...", (gptr*) &enclosed, (gptr*) &enclosed, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0 ,0, 0}, {"fields-optionally-enclosed-by", OPT_O_ENC, "Fields in the i.file are opt. enclosed by ...", (gptr*) &opt_enclosed, (gptr*) &opt_enclosed, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0 ,0, 0}, {"fields-escaped-by", OPT_ESC, "Fields in the i.file are escaped by ...", (gptr*) &escaped, (gptr*) &escaped, 0, GET_STR, NO_ARG, 0, 0, 0, 0, 0, 0}, {"first-slave", 'x', "Locks all tables across all databases.", (gptr*) &opt_first_slave, (gptr*) &opt_first_slave, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0}, {"flush-logs", 'F', "Flush logs file in server before starting dump.", (gptr*) &flush_logs, (gptr*) &flush_logs, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0}, {"force", 'f', "Continue even if we get an sql-error.", (gptr*) &ignore_errors, (gptr*) &ignore_errors, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0}, {"help", '?', "Display this help message and exit.", 0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0}, {"host", 'h', "Connect to host.", (gptr*) ¤t_host, (gptr*) ¤t_host, 0, GET_STR_ALLOC, REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, {"lines-terminated-by", OPT_LTB, "Lines in the i.file are terminated by ...", (gptr*) &lines_terminated, (gptr*) &lines_terminated, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, {"lock-tables", 'l', "Lock all tables for read.", (gptr*) &lock_tables, (gptr*) &lock_tables, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0}, {"master-data", OPT_MASTER_DATA, "This will cause the master position and filename to be appended to your output. This will automagically enable --first-slave.", 0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0}, {"no-autocommit", OPT_AUTOCOMMIT, "Wrap tables with autocommit/commit statements.", (gptr*) &opt_autocommit, (gptr*) &opt_autocommit, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0}, {"no-create-db", 'n', "'CREATE DATABASE /*!32312 IF NOT EXISTS*/ db_name;' will not be put in the output. The above line will be added otherwise, if --databases or --all-databases option was given.}", (gptr*) &opt_create_db, (gptr*) &opt_create_db, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0}, {"no-create-info", 't', "Don't write table creation info.", (gptr*) &tFlag, (gptr*) &tFlag, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0}, {"no-data", 'd', "No row information.", (gptr*) &dFlag, (gptr*) &dFlag, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0}, {"set-variable", 'O', "Change the value of a variable. Please note that this option is depricated; you can set variables directly with --variable-name=value.", 0, 0, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, {"opt", OPT_OPTIMIZE, "Same as --add-drop-table --add-locks --all --quick --extended-insert --lock-tables --disable-keys", 0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0}, {"password", 'p', "Password to use when connecting to server. If password is not given it's solicited on the tty.", 0, 0, 0, GET_STR, OPT_ARG, 0, 0, 0, 0, 0, 0}, #ifdef __WIN__ {"pipe", 'W', "Use named pipes to connect to server", 0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0}, #endif {"port", 'P', "Port number to use for connection.", (gptr*) &opt_mysql_port, (gptr*) &opt_mysql_port, 0, GET_UINT, REQUIRED_ARG, MYSQL_PORT, 0, 0, 0, 0, 0}, {"quick", 'q', "Don't buffer query, dump directly to stdout.", (gptr*) &quick, (gptr*) &quick, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0}, {"quote-names",'Q', "Quote table and column names with a `", (gptr*) &opt_quoted, (gptr*) &opt_quoted, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0}, {"result-file", 'r', "Direct output to a given file. This option should be used in MSDOS, because it prevents new line '\\n' from being converted to '\\n\\r' (newline + carriage return).", 0, 0, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, {"socket", 'S', "Socket file to use for connection.", (gptr*) &opt_mysql_unix_port, (gptr*) &opt_mysql_unix_port, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, #include "sslopt-longopts.h" {"tab",'T', "Creates tab separated textfile for each table to given path. (creates .sql and .txt files). NOTE: This only works if mysqldump is run on the same machine as the mysqld daemon.", (gptr*) &path, (gptr*) &path, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, {"tables", OPT_TABLES, "Overrides option --databases (-B).", 0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0}, #ifndef DONT_ALLOW_USER_CHANGE {"user", 'u', "User for login if not current user.", (gptr*) ¤t_user, (gptr*) ¤t_user, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, #endif {"verbose", 'v', "Print info about the various stages.", (gptr*) &verbose, (gptr*) &verbose, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0}, {"version",'V', "Output version information and exit.", 0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0}, {"where", 'w', "Dump only selected records; QUOTES mandatory!", (gptr*) &where, (gptr*) &where, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, {"xml", 'X', "Dump a database as well formed XML.", 0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0}, {"max_allowed_packet", OPT_MAX_ALLOWED_PACKET, "", (gptr*) &max_allowed_packet, (gptr*) &max_allowed_packet, 0, GET_ULONG, REQUIRED_ARG, 24*1024*1024, 4096, 512*1024L*1024L, MALLOC_OVERHEAD, 1024, 0}, {"net_buffer_length", OPT_NET_BUFFER_LENGTH, "", (gptr*) &net_buffer_length, (gptr*) &net_buffer_length, 0, GET_ULONG, REQUIRED_ARG, 1024*1024L-1025, 4096, 16*1024L*1024L, MALLOC_OVERHEAD-1024, 1024, 0}, {0, 0, 0, 0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0} }; static const char *load_default_groups[]= { "mysqldump","client",0 }; static void safe_exit(int error); static void write_header(FILE *sql_file, char *db_name); static void print_value(FILE *file, MYSQL_RES *result, MYSQL_ROW row, const char *prefix,const char *name, int string_value); static int dump_selected_tables(char *db, char **table_names, int tables); static int dump_all_tables_in_db(char *db); static int init_dumping(char *); static int dump_databases(char **); static int dump_all_databases(); static char *quote_name(char *name, char *buff); static void print_quoted_xml(FILE *output, char *fname, char *str, uint len); static void print_version(void) { printf("%s Ver %s Distrib %s, for %s (%s)\n",my_progname,DUMP_VERSION, MYSQL_SERVER_VERSION,SYSTEM_TYPE,MACHINE_TYPE); } /* print_version */ static void usage(void) { print_version(); puts("By Igor Romanenko, Monty, Jani & Sinisa"); 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"); puts("Dumping definition and data mysql database or table"); printf("Usage: %s [OPTIONS] database [tables]\n", my_progname); printf("OR %s [OPTIONS] --databases [OPTIONS] DB1 [DB2 DB3...]\n", my_progname); printf("OR %s [OPTIONS] --all-databases [OPTIONS]\n", my_progname); print_defaults("my",load_default_groups); my_print_help(my_long_options); my_print_variables(my_long_options); } /* usage */ static void write_header(FILE *sql_file, char *db_name) { if (opt_xml) fprintf(sql_file,"\n"); else { fprintf(sql_file, "-- MySQL dump %s\n--\n", DUMP_VERSION); fprintf(sql_file, "-- Host: %s Database: %s\n", current_host ? current_host : "localhost", db_name ? db_name : ""); fputs("---------------------------------------------------------\n", sql_file); fprintf(sql_file, "-- Server version\t%s\n", mysql_get_server_info(&mysql_connection)); } return; } /* write_header */ static my_bool get_one_option(int optid, const struct my_option *opt __attribute__((unused)), char *argument) { switch(optid) { case OPT_MASTER_DATA: opt_master_data=1; opt_first_slave=1; break; case 'p': if (argument) { char *start=argument; my_free(opt_password,MYF(MY_ALLOW_ZERO_PTR)); opt_password=my_strdup(argument,MYF(MY_FAE)); while (*argument) *argument++= 'x'; /* Destroy argument */ if (*start) start[1]=0; /* Cut length of argument */ } else tty_password=1; break; case 'r': if (!(md_result_file = my_fopen(argument, O_WRONLY | O_BINARY, MYF(MY_WME)))) exit(1); break; case 'W': #ifdef __WIN__ opt_mysql_unix_port=MYSQL_NAMEDPIPE; #endif break; case 'T': opt_disable_keys=0; break; case '#': DBUG_PUSH(argument ? argument : "d:t:o"); break; case 'V': print_version(); exit(0); case 'X': opt_xml = 1; opt_disable_keys=0; break; case 'I': case '?': usage(); exit(0); case (int) OPT_OPTIMIZE: extended_insert=opt_drop=opt_lock=lock_tables=quick=create_options= opt_disable_keys=1; break; case (int) OPT_TABLES: opt_databases=0; break; #include "sslopt-case.h" } return 0; } static int get_options(int *argc, char ***argv) { int ho_error; md_result_file= stdout; load_defaults("my",load_default_groups,argc,argv); if ((ho_error=handle_options(argc, argv, my_long_options, get_one_option))) { printf("%s: handle_options() failed with error %d\n", my_progname, ho_error); exit(1); } if (opt_delayed) opt_lock=0; /* Can't have lock with delayed */ if (!path && (enclosed || opt_enclosed || escaped || lines_terminated || fields_terminated)) { fprintf(stderr, "%s: You must use option --tab with --fields-...\n", my_progname); return(1); } if (enclosed && opt_enclosed) { fprintf(stderr, "%s: You can't use ..enclosed.. and ..optionally-enclosed.. at the same time.\n", my_progname); return(1); } if (replace && ignore) { fprintf(stderr, "%s: You can't use --ignore (-i) and --replace (-r) at the same time.\n",my_progname); return(1); } if ((opt_databases || opt_alldbs) && path) { fprintf(stderr, "%s: --databases or --all-databases can't be used with --tab.\n", my_progname); return(1); } if (default_charset) { if (set_default_charset_by_name(default_charset, MYF(MY_WME))) exit(1); } if ((*argc < 1 && !opt_alldbs) || (*argc > 0 && opt_alldbs)) { usage(); return 1; } if (tty_password) opt_password=get_tty_password(NullS); return(0); } /* get_options */ /* ** DBerror -- prints mysql error message and exits the program. */ static void DBerror(MYSQL *mysql, const char *when) { DBUG_ENTER("DBerror"); my_printf_error(0,"Got error: %d: %s %s", MYF(0), mysql_errno(mysql), mysql_error(mysql), when); safe_exit(EX_MYSQLERR); DBUG_VOID_RETURN; } /* DBerror */ static void safe_exit(int error) { if (!first_error) first_error= error; if (ignore_errors) return; if (sock) mysql_close(sock); exit(error); } /* safe_exit */ /* ** dbConnect -- connects to the host and selects DB. ** Also checks whether the tablename is a valid table name. */ static int dbConnect(char *host, char *user,char *passwd) { DBUG_ENTER("dbConnect"); if (verbose) { fprintf(stderr, "-- Connecting to %s...\n", host ? host : "localhost"); } mysql_init(&mysql_connection); if (opt_compress) mysql_options(&mysql_connection,MYSQL_OPT_COMPRESS,NullS); #ifdef HAVE_OPENSSL if (opt_use_ssl) mysql_ssl_set(&mysql_connection, opt_ssl_key, opt_ssl_cert, opt_ssl_ca, opt_ssl_capath, opt_ssl_cipher); #endif if (!(sock= mysql_real_connect(&mysql_connection,host,user,passwd, NULL,opt_mysql_port,opt_mysql_unix_port, 0))) { DBerror(&mysql_connection, "when trying to connect"); return 1; } return 0; } /* dbConnect */ /* ** dbDisconnect -- disconnects from the host. */ static void dbDisconnect(char *host) { if (verbose) fprintf(stderr, "-- Disconnecting from %s...\n", host ? host : "localhost"); mysql_close(sock); } /* dbDisconnect */ static void unescape(FILE *file,char *pos,uint length) { char *tmp; DBUG_ENTER("unescape"); if (!(tmp=(char*) my_malloc(length*2+1, MYF(MY_WME)))) { ignore_errors=0; /* Fatal error */ safe_exit(EX_MYSQLERR); /* Force exit */ } mysql_real_escape_string(&mysql_connection, tmp, pos, length); fputc('\'', file); fputs(tmp, file); fputc('\'', file); my_free(tmp, MYF(MY_WME)); DBUG_VOID_RETURN; } /* unescape */ static my_bool test_if_special_chars(const char *str) { #if MYSQL_VERSION_ID >= 32300 for ( ; *str ; str++) if (!isvar(*str) && *str != '$') return 1; #endif return 0; } /* test_if_special_chars */ static char *quote_name(char *name, char *buff) { char *end; if (!opt_quoted && !test_if_special_chars(name)) return name; buff[0]=QUOTE_CHAR; end=strmov(buff+1,name); end[0]=QUOTE_CHAR; end[1]=0; return buff; } /* quote_name */ /* ** getStructure -- retrievs database structure, prints out corresponding ** CREATE statement and fills out insert_pat. ** Return values: number of fields in table, 0 if error */ static uint getTableStructure(char *table, char* db) { MYSQL_RES *tableRes; MYSQL_ROW row; my_bool init=0; uint numFields; char *strpos, *table_name; const char *delayed; char name_buff[NAME_LEN+3],table_buff[NAME_LEN+3]; FILE *sql_file = md_result_file; DBUG_ENTER("getTableStructure"); delayed= opt_delayed ? " DELAYED " : ""; if (verbose) fprintf(stderr, "-- Retrieving table structure for table %s...\n", table); sprintf(insert_pat,"SET OPTION SQL_QUOTE_SHOW_CREATE=%d", opt_quoted); table_name=quote_name(table,table_buff); if (!mysql_query(sock,insert_pat)) { /* using SHOW CREATE statement */ if (!tFlag) { /* Make an sql-file, if path was given iow. option -T was given */ char buff[20+FN_REFLEN]; sprintf(buff,"show create table `%s`",table); if (mysql_query(sock, buff)) { fprintf(stderr, "%s: Can't get CREATE TABLE for table '%s' (%s)\n", my_progname, table, mysql_error(sock)); safe_exit(EX_MYSQLERR); DBUG_RETURN(0); } if (path) { char filename[FN_REFLEN], tmp_path[FN_REFLEN]; convert_dirname(tmp_path,path,NullS); sql_file= my_fopen(fn_format(filename, table, tmp_path, ".sql", 4), O_WRONLY, MYF(MY_WME)); if (!sql_file) /* If file couldn't be opened */ { safe_exit(EX_MYSQLERR); DBUG_RETURN(0); } write_header(sql_file, db); } if (!opt_xml) fprintf(sql_file, "\n--\n-- Table structure for table '%s'\n--\n\n", table); if (opt_drop) fprintf(sql_file, "DROP TABLE IF EXISTS %s;\n",table_name); tableRes=mysql_store_result(sock); row=mysql_fetch_row(tableRes); if (!opt_xml) fprintf(sql_file, "%s;\n", row[1]); mysql_free_result(tableRes); } sprintf(insert_pat,"show fields from %s",table_name); if (mysql_query(sock,insert_pat) || !(tableRes=mysql_store_result(sock))) { fprintf(stderr, "%s: Can't get info about table: '%s'\nerror: %s\n", my_progname, table, mysql_error(sock)); if (path) my_fclose(sql_file, MYF(MY_WME)); safe_exit(EX_MYSQLERR); DBUG_RETURN(0); } if (cFlag) sprintf(insert_pat, "INSERT %sINTO %s (", delayed, table_name); else { sprintf(insert_pat, "INSERT %sINTO %s VALUES ", delayed, table_name); if (!extended_insert) strcat(insert_pat,"("); } strpos=strend(insert_pat); while ((row=mysql_fetch_row(tableRes))) { if (init) { if (cFlag) strpos=strmov(strpos,", "); } init=1; if (cFlag) strpos=strmov(strpos,quote_name(row[SHOW_FIELDNAME],name_buff)); } numFields = (uint) mysql_num_rows(tableRes); mysql_free_result(tableRes); } else { /* fprintf(stderr, "%s: Can't set SQL_QUOTE_SHOW_CREATE option (%s)\n", my_progname, mysql_error(sock)); */ sprintf(insert_pat,"show fields from %s",table_name); if (mysql_query(sock,insert_pat) || !(tableRes=mysql_store_result(sock))) { fprintf(stderr, "%s: Can't get info about table: '%s'\nerror: %s\n", my_progname, table, mysql_error(sock)); safe_exit(EX_MYSQLERR); DBUG_RETURN(0); } /* Make an sql-file, if path was given iow. option -T was given */ if (!tFlag) { if (path) { char filename[FN_REFLEN], tmp_path[FN_REFLEN]; convert_dirname(tmp_path,path,NullS); sql_file= my_fopen(fn_format(filename, table, tmp_path, ".sql", 4), O_WRONLY, MYF(MY_WME)); if (!sql_file) /* If file couldn't be opened */ { safe_exit(EX_MYSQLERR); DBUG_RETURN(0); } write_header(sql_file, db); } if (!opt_xml) fprintf(sql_file, "\n--\n-- Table structure for table '%s'\n--\n\n", table); if (opt_drop) fprintf(sql_file, "DROP TABLE IF EXISTS %s;\n",table_name); fprintf(sql_file, "CREATE TABLE %s (\n", table_name); } if (cFlag) sprintf(insert_pat, "INSERT %sINTO %s (", delayed, table_name); else { sprintf(insert_pat, "INSERT %sINTO %s VALUES ", delayed, table_name); if (!extended_insert) strcat(insert_pat,"("); } strpos=strend(insert_pat); while ((row=mysql_fetch_row(tableRes))) { ulong *lengths=mysql_fetch_lengths(tableRes); if (init) { if (!tFlag) fputs(",\n",sql_file); if (cFlag) strpos=strmov(strpos,", "); } init=1; if (cFlag) strpos=strmov(strpos,quote_name(row[SHOW_FIELDNAME],name_buff)); if (!tFlag) { if (opt_keywords) fprintf(sql_file, " %s.%s %s", table_name, quote_name(row[SHOW_FIELDNAME],name_buff), row[SHOW_TYPE]); else fprintf(sql_file, " %s %s", quote_name(row[SHOW_FIELDNAME], name_buff), row[SHOW_TYPE]); if (row[SHOW_DEFAULT]) { fputs(" DEFAULT ", sql_file); unescape(sql_file, row[SHOW_DEFAULT], lengths[SHOW_DEFAULT]); } if (!row[SHOW_NULL][0]) fputs(" NOT NULL", sql_file); if (row[SHOW_EXTRA][0]) fprintf(sql_file, " %s",row[SHOW_EXTRA]); } } numFields = (uint) mysql_num_rows(tableRes); mysql_free_result(tableRes); if (!tFlag) { /* Make an sql-file, if path was given iow. option -T was given */ char buff[20+FN_REFLEN]; uint keynr,primary_key; sprintf(buff,"show keys from %s",table_name); if (mysql_query(sock, buff)) { fprintf(stderr, "%s: Can't get keys for table '%s' (%s)\n", my_progname, table, mysql_error(sock)); if (path) my_fclose(sql_file, MYF(MY_WME)); safe_exit(EX_MYSQLERR); DBUG_RETURN(0); } tableRes=mysql_store_result(sock); /* Find first which key is primary key */ keynr=0; primary_key=INT_MAX; while ((row=mysql_fetch_row(tableRes))) { if (atoi(row[3]) == 1) { keynr++; #ifdef FORCE_PRIMARY_KEY if (atoi(row[1]) == 0 && primary_key == INT_MAX) primary_key=keynr; #endif if (!strcmp(row[2],"PRIMARY")) { primary_key=keynr; break; } } } mysql_data_seek(tableRes,0); keynr=0; while ((row=mysql_fetch_row(tableRes))) { if (atoi(row[3]) == 1) { if (keynr++) putc(')', sql_file); if (atoi(row[1])) /* Test if duplicate key */ /* Duplicate allowed */ fprintf(sql_file, ",\n KEY %s (",quote_name(row[2],name_buff)); else if (keynr == primary_key) fputs(",\n PRIMARY KEY (",sql_file); /* First UNIQUE is primary */ else fprintf(sql_file, ",\n UNIQUE %s (",quote_name(row[2],name_buff)); } else putc(',', sql_file); fputs(quote_name(row[4],name_buff), sql_file); if (row[7]) fprintf(sql_file, " (%s)",row[7]); /* Sub key */ } if (keynr) putc(')', sql_file); fputs("\n)",sql_file); /* Get MySQL specific create options */ if (create_options) { sprintf(buff,"show table status like '%s'",table); if (mysql_query(sock, buff)) { if (mysql_errno(sock) != ER_PARSE_ERROR) { /* If old MySQL version */ if (verbose) fprintf(stderr, "-- Warning: Couldn't get status information for table '%s' (%s)\n", table,mysql_error(sock)); } } else if (!(tableRes=mysql_store_result(sock)) || !(row=mysql_fetch_row(tableRes))) { fprintf(stderr, "Error: Couldn't read status information for table '%s' (%s)\n", table,mysql_error(sock)); } else { fputs("/*!",sql_file); print_value(sql_file,tableRes,row,"type=","Type",0); print_value(sql_file,tableRes,row,"","Create_options",0); print_value(sql_file,tableRes,row,"comment=","Comment",1); fputs(" */",sql_file); } mysql_free_result(tableRes); /* Is always safe to free */ } fputs(";\n", sql_file); } } if (cFlag) { strpos=strmov(strpos,") VALUES "); if (!extended_insert) strpos=strmov(strpos,"("); } if (sql_file != md_result_file) my_fclose(sql_file, MYF(MY_WME)); DBUG_RETURN(numFields); } /* getTableStructure */ static char *add_load_option(char *ptr,const char *object, const char *statement) { if (object) { /* Don't escape hex constants */ if (object[0] == '0' && (object[1] == 'x' || object[1] == 'X')) ptr= strxmov(ptr," ",statement," ",object,NullS); else { /* char constant; escape */ ptr= strxmov(ptr," ",statement," '",NullS); ptr= field_escape(ptr,object,(uint) strlen(object)); *ptr++= '\''; } } return ptr; } /* add_load_option */ /* ** Allow the user to specify field terminator strings like: ** "'", "\", "\\" (escaped backslash), "\t" (tab), "\n" (newline) ** This is done by doubleing ' and add a end -\ if needed to avoid ** syntax errors from the SQL parser. */ static char *field_escape(char *to,const char *from,uint length) { const char *end; uint end_backslashes=0; for (end= from+length; from != end; from++) { *to++= *from; if (*from == '\\') end_backslashes^=1; /* find odd number of backslashes */ else { if (*from == '\'' && !end_backslashes) *to++= *from; /* We want a duplicate of "'" for MySQL */ end_backslashes=0; } } /* Add missing backslashes if user has specified odd number of backs.*/ if (end_backslashes) *to++= '\\'; return to; } /* field_escape */ /* ** dumpTable saves database contents as a series of INSERT statements. */ static void dumpTable(uint numFields, char *table) { char query[QUERY_LENGTH], *end, buff[256],table_buff[NAME_LEN+3]; MYSQL_RES *res; MYSQL_FIELD *field; MYSQL_ROW row; ulong rownr, row_break, total_length, init_length; if (verbose) fprintf(stderr, "-- Sending SELECT query...\n"); if (path) { char filename[FN_REFLEN], tmp_path[FN_REFLEN]; convert_dirname(tmp_path,path,NullS); my_load_path(tmp_path, tmp_path, NULL); fn_format(filename, table, tmp_path, ".txt", 4); my_delete(filename, MYF(0)); /* 'INTO OUTFILE' doesn't work, if filename wasn't deleted */ to_unix_path(filename); sprintf(query, "SELECT /*!40001 SQL_NO_CACHE */ * INTO OUTFILE '%s'", filename); end= strend(query); if (replace) end= strmov(end, " REPLACE"); if (ignore) end= strmov(end, " IGNORE"); if (fields_terminated || enclosed || opt_enclosed || escaped) end= strmov(end, " FIELDS"); end= add_load_option(end, fields_terminated, " TERMINATED BY"); end= add_load_option(end, enclosed, " ENCLOSED BY"); end= add_load_option(end, opt_enclosed, " OPTIONALLY ENCLOSED BY"); end= add_load_option(end, escaped, " ESCAPED BY"); end= add_load_option(end, lines_terminated, " LINES TERMINATED BY"); *end= '\0'; sprintf(buff," FROM %s",quote_name(table,table_buff)); end= strmov(end,buff); if (where) end= strxmov(end, " WHERE ",where,NullS); if (mysql_query(sock, query)) { DBerror(sock, "when executing 'SELECT INTO OUTFILE'"); return; } } else { if (!opt_xml) fprintf(md_result_file,"\n--\n-- Dumping data for table '%s'\n--\n", table); sprintf(query, "SELECT /*!40001 SQL_NO_CACHE */ * FROM %s", quote_name(table,table_buff)); if (where) { if (!opt_xml) fprintf(md_result_file,"-- WHERE: %s\n",where); strxmov(strend(query), " WHERE ",where,NullS); } if (!opt_xml) fputs("\n", md_result_file); if (mysql_query(sock, query)) { DBerror(sock, "when retrieving data from server"); return; } if (quick) res=mysql_use_result(sock); else res=mysql_store_result(sock); if (!res) { DBerror(sock, "when retrieving data from server"); return; } if (verbose) fprintf(stderr, "-- Retrieving rows...\n"); if (mysql_num_fields(res) != numFields) { fprintf(stderr,"%s: Error in field count for table: '%s' ! Aborting.\n", my_progname,table); safe_exit(EX_CONSCHECK); return; } if (opt_disable_keys) fprintf(md_result_file,"/*!40000 ALTER TABLE %s DISABLE KEYS */;\n", quote_name(table, table_buff)); if (opt_lock) fprintf(md_result_file,"LOCK TABLES %s WRITE;\n", quote_name(table,table_buff)); total_length=net_buffer_length; /* Force row break */ row_break=0; rownr=0; init_length=(uint) strlen(insert_pat)+4; if (opt_xml) fprintf(md_result_file, "\t<%s>\n", table); if (opt_autocommit) fprintf(md_result_file, "set autocommit=0;\n"); while ((row=mysql_fetch_row(res))) { uint i; ulong *lengths=mysql_fetch_lengths(res); rownr++; if (!extended_insert && !opt_xml) fputs(insert_pat,md_result_file); mysql_field_seek(res,0); if (opt_xml) fprintf(md_result_file, "\t\n"); for (i = 0; i < mysql_num_fields(res); i++) { if (!(field = mysql_fetch_field(res))) { sprintf(query,"%s: Not enough fields from table '%s'! Aborting.\n", my_progname,table); fputs(query,stderr); safe_exit(EX_CONSCHECK); return; } if (extended_insert) { ulong length = lengths[i]; if (i == 0) dynstr_set(&extended_row,"("); else dynstr_append(&extended_row,","); if (row[i]) { if (length) { if (!IS_NUM_FIELD(field)) { if (dynstr_realloc(&extended_row,length * 2+2)) { fputs("Aborting dump (out of memory)",stderr); safe_exit(EX_EOM); } dynstr_append(&extended_row,"\'"); extended_row.length += mysql_real_escape_string(&mysql_connection, &extended_row.str[extended_row.length],row[i],length); extended_row.str[extended_row.length]='\0'; dynstr_append(&extended_row,"\'"); } else { /* change any strings ("inf","nan",..) into NULL */ char *ptr = row[i]; dynstr_append(&extended_row, (!isalpha(*ptr)) ? ptr : "NULL"); } } else dynstr_append(&extended_row,"\'\'"); } else if (dynstr_append(&extended_row,"NULL")) { fputs("Aborting dump (out of memory)",stderr); safe_exit(EX_EOM); } } else { if (i && !opt_xml) fputc(',', md_result_file); if (row[i]) { if (!IS_NUM_FIELD(field)) { if (opt_xml) print_quoted_xml(md_result_file, field->name, row[i], lengths[i]); else unescape(md_result_file, row[i], lengths[i]); } else { /* change any strings ("inf","nan",..) into NULL */ char *ptr = row[i]; if (opt_xml) fprintf(md_result_file, "\t\t<%s>%s\n", field->name,!isalpha(*ptr) ?ptr: "NULL",field->name); else fputs((!isalpha(*ptr)) ? ptr : "NULL", md_result_file); } } else { if (opt_xml) fprintf(md_result_file, "\t\t<%s>%s\n", field->name, "NULL", field->name); else fputs("NULL", md_result_file); } } } if (opt_xml) fprintf(md_result_file, "\t\n"); if (extended_insert) { ulong row_length; dynstr_append(&extended_row,")"); row_length = 2 + extended_row.length; if (total_length + row_length < net_buffer_length) { total_length += row_length; fputc(',',md_result_file); /* Always row break */ fputs(extended_row.str,md_result_file); } else { if (row_break && !opt_xml) fputs(";\n", md_result_file); row_break=1; /* This is first row */ if (!opt_xml) { fputs(insert_pat,md_result_file); fputs(extended_row.str,md_result_file); } total_length = row_length+init_length; } } else if (!opt_xml) fputs(");\n", md_result_file); } /* XML - close table tag and supress regular output */ if (opt_xml) fprintf(md_result_file, "\t\n", table); else if (extended_insert && row_break) fputs(";\n", md_result_file); /* If not empty table */ fflush(md_result_file); if (mysql_errno(sock)) { sprintf(query,"%s: Error %d: %s when dumping table '%s' at row: %ld\n", my_progname, mysql_errno(sock), mysql_error(sock), table, rownr); fputs(query,stderr); safe_exit(EX_CONSCHECK); return; } if (opt_lock) fputs("UNLOCK TABLES;\n", md_result_file); if (opt_disable_keys) fprintf(md_result_file,"/*!40000 ALTER TABLE %s ENABLE KEYS */;\n", quote_name(table,table_buff)); if (opt_autocommit) fprintf(md_result_file, "commit;\n"); mysql_free_result(res); } } /* dumpTable */ static void print_quoted_xml(FILE *output, char *fname, char *str, uint len) { const char *end; fprintf(output, "\t\t<%s>", fname); for (end = str + len; str != end; str++) { if (*str == '<') fputs("<", output); else if (*str == '>') fputs(">", output); else if (*str == '&') fputs("&", output); else if (*str == '\"') fputs(""", output); else fputc(*str, output); } fprintf(output, "\n", fname); } static char *getTableName(int reset) { static MYSQL_RES *res = NULL; MYSQL_ROW row; if (!res) { if (!(res = mysql_list_tables(sock,NullS))) return(NULL); } if ((row = mysql_fetch_row(res))) return((char*) row[0]); if (reset) mysql_data_seek(res,0); /* We want to read again */ else { mysql_free_result(res); res = NULL; } return(NULL); } /* getTableName */ static int dump_all_databases() { MYSQL_ROW row; MYSQL_RES *tableres; int result=0; if (mysql_query(sock, "SHOW DATABASES") || !(tableres = mysql_store_result(sock))) { my_printf_error(0, "Error: Couldn't execute 'SHOW DATABASES': %s", MYF(0), mysql_error(sock)); return 1; } while ((row = mysql_fetch_row(tableres))) { if (dump_all_tables_in_db(row[0])) result=1; } return result; } /* dump_all_databases */ static int dump_databases(char **db_names) { int result=0; for ( ; *db_names ; db_names++) { /* XML edit - add database element */ if (opt_xml) fprintf(md_result_file, "<%s>\n", *db_names); if (dump_all_tables_in_db(*db_names)) result=1; if (opt_xml) fprintf(md_result_file, "\n", *db_names); } return result; } /* dump_databases */ static int init_dumping(char *database) { if (mysql_select_db(sock, database)) { DBerror(sock, "when selecting the database"); return 1; /* If --force */ } if (!path) { if (opt_databases || opt_alldbs) { fprintf(md_result_file,"\n--\n-- Current Database: %s\n--\n", database); if (!opt_create_db) fprintf(md_result_file,"\nCREATE DATABASE /*!32312 IF NOT EXISTS*/ %s;\n", database); fprintf(md_result_file,"\nUSE %s;\n", database); } } if (extended_insert) if (init_dynamic_string(&extended_row, "", 1024, 1024)) exit(EX_EOM); return 0; } /* init_dumping */ static int dump_all_tables_in_db(char *database) { char *table; uint numrows; char table_buff[NAME_LEN+3]; if (init_dumping(database)) return 1; if (lock_tables) { DYNAMIC_STRING query; init_dynamic_string(&query, "LOCK TABLES ", 256, 1024); for (numrows=0 ; (table = getTableName(1)) ; numrows++) { dynstr_append(&query, quote_name(table, table_buff)); dynstr_append(&query, " READ /*!32311 LOCAL */,"); } if (numrows && mysql_real_query(sock, query.str, query.length-1)) DBerror(sock, "when using LOCK TABLES"); /* We shall continue here, if --force was given */ dynstr_free(&query); } if (flush_logs) { if (mysql_refresh(sock, REFRESH_LOG)) DBerror(sock, "when doing refresh"); /* We shall continue here, if --force was given */ } while ((table = getTableName(0))) { numrows = getTableStructure(table, database); if (!dFlag && numrows > 0) dumpTable(numrows,table); } if (lock_tables) mysql_query(sock,"UNLOCK_TABLES"); return 0; } /* dump_all_tables_in_db */ static int dump_selected_tables(char *db, char **table_names, int tables) { uint numrows; char table_buff[NAME_LEN+3]; if (init_dumping(db)) return 1; if (lock_tables) { DYNAMIC_STRING query; int i; init_dynamic_string(&query, "LOCK TABLES ", 256, 1024); for (i=0 ; i < tables ; i++) { dynstr_append(&query, quote_name(table_names[i], table_buff)); dynstr_append(&query, " READ /*!32311 LOCAL */,"); } if (mysql_real_query(sock, query.str, query.length-1)) DBerror(sock, "when doing LOCK TABLES"); /* We shall countinue here, if --force was given */ dynstr_free(&query); } if (flush_logs) { if (mysql_refresh(sock, REFRESH_LOG)) DBerror(sock, "when doing refresh"); /* We shall countinue here, if --force was given */ } for (; tables > 0 ; tables-- , table_names++) { numrows = getTableStructure(*table_names, db); if (!dFlag && numrows > 0) dumpTable(numrows, *table_names); } if (lock_tables) mysql_query(sock,"UNLOCK_TABLES"); return 0; } /* dump_selected_tables */ /* Print a value with a prefix on file */ static void print_value(FILE *file, MYSQL_RES *result, MYSQL_ROW row, const char *prefix, const char *name, int string_value) { MYSQL_FIELD *field; mysql_field_seek(result, 0); for ( ; (field = mysql_fetch_field(result)) ; row++) { if (!strcmp(field->name,name)) { if (row[0] && row[0][0] && strcmp(row[0],"0")) /* Skip default */ { fputc(' ',file); fputs(prefix, file); if (string_value) unescape(file,row[0],(uint) strlen(row[0])); else fputs(row[0], file); return; } } } return; /* This shouldn't happen */ } /* print_value */ int main(int argc, char **argv) { MYSQL_ROW row; MYSQL_RES *master; MY_INIT(argv[0]); /* ** Check out the args */ if (get_options(&argc, &argv)) { my_end(0); exit(EX_USAGE); } if (dbConnect(current_host, current_user, opt_password)) exit(EX_MYSQLERR); if (!path) write_header(md_result_file, *argv); if (opt_first_slave) { lock_tables=0; /* No other locks needed */ if (mysql_query(sock, "FLUSH TABLES WITH READ LOCK")) { my_printf_error(0, "Error: Couldn't execute 'FLUSH TABLES WITH READ LOCK': %s", MYF(0), mysql_error(sock)); my_end(0); return(first_error); } } if (opt_alldbs) dump_all_databases(); /* Only one database and selected table(s) */ else if (argc > 1 && !opt_databases) dump_selected_tables(*argv, (argv + 1), (argc - 1)); /* One or more databases, all tables */ else dump_databases(argv); if (opt_first_slave) { if (opt_master_data) { if (mysql_query(sock, "SHOW MASTER STATUS") || !(master = mysql_store_result(sock))) { my_printf_error(0, "Error: Couldn't execute 'SHOW MASTER STATUS': %s", MYF(0), mysql_error(sock)); } else { row = mysql_fetch_row(master); if(row[0] && row[1]) { fprintf(md_result_file, "\n--\n-- Position to start replication from\n--\n\n"); fprintf(md_result_file, "CHANGE MASTER TO MASTER_LOG_FILE='%s' ;\n", row[0]); fprintf(md_result_file, "CHANGE MASTER TO MASTER_LOG_POS=%s ;\n", row[1]); } mysql_free_result(master); } } if (mysql_query(sock, "FLUSH MASTER")) { my_printf_error(0, "Error: Couldn't execute 'FLUSH MASTER': %s", MYF(0), mysql_error(sock)); } if (mysql_query(sock, "UNLOCK TABLES")) { my_printf_error(0, "Error: Couldn't execute 'UNLOCK TABLES': %s", MYF(0), mysql_error(sock)); } } dbDisconnect(current_host); fputs("\n", md_result_file); if (md_result_file != stdout) my_fclose(md_result_file, MYF(0)); my_free(opt_password, MYF(MY_ALLOW_ZERO_PTR)); if (extended_insert) dynstr_free(&extended_row); my_end(0); return(first_error); } /* main */