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mysqladmin.cc
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/*
Copyright (c) 2000, 2025, Oracle and/or its affiliates.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License, version 2.0,
as published by the Free Software Foundation.
This program is designed to work with certain software (including
but not limited to OpenSSL) that is licensed under separate terms,
as designated in a particular file or component or in included license
documentation. The authors of MySQL hereby grant you an additional
permission to link the program and your derivative works with the
separately licensed software that they have either included with
the program or referenced in the documentation.
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, version 2.0, 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
*/
// Maintenance of MySQL databases.
#include <fcntl.h>
#include <mysql.h>
#include <mysqld_error.h> /* to check server error codes */
#include <sys/stat.h>
#include <sys/types.h>
#include <csignal>
#include <cstdlib>
#include <ctime>
#include <string>
#include "client/include/client_priv.h"
#include "compression.h"
#include "m_string.h"
#include "my_alloc.h"
#include "my_compiler.h"
#include "my_dbug.h"
#include "my_default.h"
#include "my_inttypes.h"
#include "my_io.h"
#include "my_macros.h"
#include "my_thread.h" /* because of signal() */
#include "mysql/service_mysql_alloc.h"
#include "mysql/strings/int2str.h"
#include "mysql/strings/m_ctype.h"
#include "nulls.h"
#include "print_version.h"
#include "scope_guard.h"
#include "sql_common.h"
#include "str2int.h"
#include "strxmov.h"
#include "typelib.h"
#include "welcome_copyright_notice.h" /* ORACLE_WELCOME_COPYRIGHT_NOTICE */
#define MAX_MYSQL_VAR 8192
#define SHUTDOWN_DEF_TIMEOUT 3600 /* Wait for shutdown */
#define MAX_TRUNC_LENGTH 3
#define FIRST_SOURCE_COMMAND_VERSION 80200
const char *host = nullptr;
char *user = nullptr;
const char *default_charset = MYSQL_AUTODETECT_CHARSET_NAME;
char truncated_var_names[MAX_MYSQL_VAR][MAX_TRUNC_LENGTH];
char ex_var_names[MAX_MYSQL_VAR][FN_REFLEN];
ulonglong last_values[MAX_MYSQL_VAR];
static int interval = 0;
static bool option_force = false, interrupted = false, new_line = false,
opt_compress = false, opt_relative = false, opt_verbose = false,
opt_vertical = false, opt_nobeep;
static bool debug_info_flag = false, debug_check_flag = false;
static uint tcp_port = 0, option_wait = 0, option_silent = 0, nr_iterations;
static uint opt_count_iterations = 0, my_end_arg = 0;
static char *opt_bind_addr = nullptr;
static ulong opt_connect_timeout, opt_shutdown_timeout;
static char *unix_port = nullptr;
static char *opt_plugin_dir = nullptr, *opt_default_auth = nullptr;
static uint opt_enable_cleartext_plugin = 0;
static bool using_opt_enable_cleartext_plugin = false;
static bool opt_show_warnings = false;
static uint opt_zstd_compress_level = default_zstd_compression_level;
static char *opt_compress_algorithm = nullptr;
#if defined(_WIN32)
static char *shared_memory_base_name = nullptr;
#endif
static uint opt_protocol = 0;
static myf error_flags; /* flags to pass to my_printf_error, like ME_BELL */
/*
When using extended-status relatively, ex_val_max_len is the estimated
maximum length for any relative value printed by extended-status. The
idea is to try to keep the length of output as short as possible.
*/
static uint ex_val_max_len[MAX_MYSQL_VAR];
static bool ex_status_printed = false; /* First output is not relative. */
static uint ex_var_count, max_var_length, max_val_length;
#include "client/include/sslopt-vars.h"
#include "client/include/caching_sha2_passwordopt-vars.h"
#include "client/include/multi_factor_passwordopt-vars.h"
static void usage();
extern "C" bool get_one_option(int optid, const struct my_option *opt,
char *argument);
static bool sql_connect(MYSQL *mysql, uint wait);
static int execute_commands(MYSQL *mysql, int argc, char **argv);
static char **mask_password(int argc, char ***argv);
static int drop_db(MYSQL *mysql, const char *db);
extern "C" void endprog(int signal_number);
static void nice_time(ulong sec, char *buff);
static void print_header(MYSQL_RES *result);
static void print_top(MYSQL_RES *result);
static void print_row(MYSQL_RES *result, MYSQL_ROW cur, uint row);
static void print_relative_row(MYSQL_RES *result, MYSQL_ROW cur, uint row);
static void print_relative_row_vert(MYSQL_RES *result, MYSQL_ROW cur, uint row);
static void print_relative_header();
static void print_relative_line();
static void truncate_names();
static bool get_pidfile(MYSQL *mysql, char *pidfile);
static bool wait_pidfile(char *pidfile, time_t last_modified,
struct stat *pidfile_status);
static void store_values(MYSQL_RES *result);
static void print_warnings(MYSQL *mysql);
/*
The order of commands must be the same as command_names,
except ADMIN_ERROR
*/
enum commands {
ADMIN_ERROR,
ADMIN_CREATE,
ADMIN_DROP,
ADMIN_SHUTDOWN,
ADMIN_RELOAD,
ADMIN_REFRESH,
ADMIN_VER,
ADMIN_PROCESSLIST,
ADMIN_STATUS,
ADMIN_KILL,
ADMIN_DEBUG,
ADMIN_VARIABLES,
ADMIN_FLUSH_LOGS,
ADMIN_FLUSH_HOSTS,
ADMIN_FLUSH_TABLES,
ADMIN_PASSWORD,
ADMIN_PING,
ADMIN_EXTENDED_STATUS,
ADMIN_FLUSH_STATUS,
ADMIN_FLUSH_PRIVILEGES,
ADMIN_START_REPLICA,
ADMIN_STOP_REPLICA,
ADMIN_START_SLAVE,
ADMIN_STOP_SLAVE
};
static const char *command_names[] = {"create",
"drop",
"shutdown",
"reload",
"refresh",
"version",
"processlist",
"status",
"kill",
"debug",
"variables",
"flush-logs",
"flush-hosts",
"flush-tables",
"password",
"ping",
"extended-status",
"flush-status",
"flush-privileges",
"start-replica",
"stop-replica",
"start-slave",
"stop-slave",
NullS};
static TYPELIB command_typelib = {array_elements(command_names) - 1, "commands",
command_names, nullptr};
static struct my_option my_long_options[] = {
{"bind-address", 0, "IP address to bind to.", (uchar **)&opt_bind_addr,
(uchar **)&opt_bind_addr, nullptr, GET_STR, REQUIRED_ARG, 0, 0, 0, nullptr,
0, nullptr},
{"count", 'c',
"Number of iterations to make. This works with -i (--sleep) only.",
&nr_iterations, &nr_iterations, nullptr, GET_UINT, REQUIRED_ARG, 0, 0, 0,
nullptr, 0, nullptr},
#ifdef NDEBUG
{"debug", '#', "This is a non-debug version. Catch this and exit.", nullptr,
nullptr, nullptr, GET_DISABLED, OPT_ARG, 0, 0, 0, nullptr, 0, nullptr},
{"debug-check", OPT_DEBUG_CHECK,
"This is a non-debug version. Catch this and exit.", nullptr, nullptr,
nullptr, GET_DISABLED, NO_ARG, 0, 0, 0, nullptr, 0, nullptr},
{"debug-info", OPT_DEBUG_INFO,
"This is a non-debug version. Catch this and exit.", nullptr, nullptr,
nullptr, GET_DISABLED, NO_ARG, 0, 0, 0, nullptr, 0, nullptr},
#else
{"debug", '#', "Output debug log. Often this is 'd:t:o,filename'.", nullptr,
nullptr, nullptr, GET_STR, OPT_ARG, 0, 0, 0, nullptr, 0, nullptr},
{"debug-check", OPT_DEBUG_CHECK,
"Check memory and open file usage at exit.", &debug_check_flag,
&debug_check_flag, nullptr, GET_BOOL, NO_ARG, 0, 0, 0, nullptr, 0,
nullptr},
{"debug-info", OPT_DEBUG_INFO, "Print some debug info at exit.",
&debug_info_flag, &debug_info_flag, nullptr, GET_BOOL, NO_ARG, 0, 0, 0,
nullptr, 0, nullptr},
#endif
{"force", 'f',
"Don't ask for confirmation on drop database; with multiple commands, "
"continue even if an error occurs.",
&option_force, &option_force, nullptr, GET_BOOL, NO_ARG, 0, 0, 0, nullptr,
0, nullptr},
{"compress", 'C', "Use compression in server/client protocol.",
&opt_compress, &opt_compress, nullptr, GET_BOOL, NO_ARG, 0, 0, 0, nullptr,
0, nullptr},
{"character-sets-dir", OPT_CHARSETS_DIR,
"Directory for character set files.", &charsets_dir, &charsets_dir,
nullptr, GET_STR, REQUIRED_ARG, 0, 0, 0, nullptr, 0, nullptr},
{"default-character-set", OPT_DEFAULT_CHARSET,
"Set the default character set.", &default_charset, &default_charset,
nullptr, GET_STR, REQUIRED_ARG, 0, 0, 0, nullptr, 0, nullptr},
{"help", '?', "Display this help and exit.", nullptr, nullptr, nullptr,
GET_NO_ARG, NO_ARG, 0, 0, 0, nullptr, 0, nullptr},
{"host", 'h', "Connect to host.", &host, &host, nullptr, GET_STR,
REQUIRED_ARG, 0, 0, 0, nullptr, 0, nullptr},
{"no-beep", 'b', "Turn off beep on error.", &opt_nobeep, &opt_nobeep,
nullptr, GET_BOOL, NO_ARG, 0, 0, 0, nullptr, 0, nullptr},
#include "client/include/multi_factor_passwordopt-longopts.h"
#ifdef _WIN32
{"pipe", 'W', "Use named pipes to connect to server.", nullptr, nullptr,
nullptr, GET_NO_ARG, NO_ARG, 0, 0, 0, nullptr, 0, nullptr},
#endif
{"port", 'P',
"Port number to use for connection or 0 for default to, in "
"order of preference, my.cnf, $MYSQL_TCP_PORT, "
#if MYSQL_PORT_DEFAULT == 0
"/etc/services, "
#endif
"built-in default (" STRINGIFY_ARG(MYSQL_PORT) ").",
&tcp_port, &tcp_port, nullptr, GET_UINT, REQUIRED_ARG, 0, 0, 0, nullptr, 0,
nullptr},
{"protocol", OPT_MYSQL_PROTOCOL,
"The protocol to use for connection (tcp, socket, pipe, memory).", nullptr,
nullptr, nullptr, GET_STR, REQUIRED_ARG, 0, 0, 0, nullptr, 0, nullptr},
{"relative", 'r',
"Show difference between current and previous values when used with -i. "
"Currently only works with extended-status.",
&opt_relative, &opt_relative, nullptr, GET_BOOL, NO_ARG, 0, 0, 0, nullptr,
0, nullptr},
#if defined(_WIN32)
{"shared-memory-base-name", OPT_SHARED_MEMORY_BASE_NAME,
"Base name of shared memory.", &shared_memory_base_name,
&shared_memory_base_name, nullptr, GET_STR_ALLOC, REQUIRED_ARG, 0, 0, 0,
nullptr, 0, nullptr},
#endif
{"silent", 's', "Silently exit if one can't connect to server.", nullptr,
nullptr, nullptr, GET_NO_ARG, NO_ARG, 0, 0, 0, nullptr, 0, nullptr},
{"socket", 'S', "The socket file to use for connection.", &unix_port,
&unix_port, nullptr, GET_STR, REQUIRED_ARG, 0, 0, 0, nullptr, 0, nullptr},
{"sleep", 'i', "Execute commands repeatedly with a sleep between.",
&interval, &interval, nullptr, GET_INT, REQUIRED_ARG, 0, 0, 0, nullptr, 0,
nullptr},
#include "client/include/sslopt-longopts.h"
#include "client/include/caching_sha2_passwordopt-longopts.h"
{"user", 'u', "User for login if not current user.", &user, &user, nullptr,
GET_STR_ALLOC, REQUIRED_ARG, 0, 0, 0, nullptr, 0, nullptr},
{"verbose", 'v', "Write more information.", &opt_verbose, &opt_verbose,
nullptr, GET_BOOL, NO_ARG, 0, 0, 0, nullptr, 0, nullptr},
{"version", 'V', "Output version information and exit.", nullptr, nullptr,
nullptr, GET_NO_ARG, NO_ARG, 0, 0, 0, nullptr, 0, nullptr},
{"vertical", 'E',
"Print output vertically. Is similar to --relative, but prints output "
"vertically.",
&opt_vertical, &opt_vertical, nullptr, GET_BOOL, NO_ARG, 0, 0, 0, nullptr,
0, nullptr},
{"wait", 'w', "Wait and retry if connection is down.", nullptr, nullptr,
nullptr, GET_UINT, OPT_ARG, 0, 0, 0, nullptr, 0, nullptr},
{"connect_timeout", OPT_CONNECT_TIMEOUT, "", &opt_connect_timeout,
&opt_connect_timeout, nullptr, GET_ULONG, REQUIRED_ARG, 3600 * 12, 0,
3600 * 12, nullptr, 1, nullptr},
{"shutdown_timeout", OPT_SHUTDOWN_TIMEOUT, "", &opt_shutdown_timeout,
&opt_shutdown_timeout, nullptr, GET_ULONG, REQUIRED_ARG,
SHUTDOWN_DEF_TIMEOUT, 0, 3600 * 12, nullptr, 1, nullptr},
{"plugin_dir", OPT_PLUGIN_DIR, "Directory for client-side plugins.",
&opt_plugin_dir, &opt_plugin_dir, nullptr, GET_STR, REQUIRED_ARG, 0, 0, 0,
nullptr, 0, nullptr},
{"default_auth", OPT_DEFAULT_AUTH,
"Default authentication client-side plugin to use.", &opt_default_auth,
&opt_default_auth, nullptr, GET_STR, REQUIRED_ARG, 0, 0, 0, nullptr, 0,
nullptr},
{"enable_cleartext_plugin", OPT_ENABLE_CLEARTEXT_PLUGIN,
"Enable/disable the clear text authentication plugin.",
&opt_enable_cleartext_plugin, &opt_enable_cleartext_plugin, nullptr,
GET_BOOL, OPT_ARG, 0, 0, 0, nullptr, 0, nullptr},
{"show_warnings", OPT_SHOW_WARNINGS, "Show warnings after execution",
&opt_show_warnings, &opt_show_warnings, nullptr, GET_BOOL, NO_ARG, 0, 0, 0,
nullptr, 0, nullptr},
{"compression-algorithms", 0,
"Use compression algorithm in server/client protocol. Valid values "
"are any combination of 'zstd','zlib','uncompressed'.",
&opt_compress_algorithm, &opt_compress_algorithm, nullptr, GET_STR,
REQUIRED_ARG, 0, 0, 0, nullptr, 0, nullptr},
{"zstd-compression-level", 0,
"Use this compression level in the client/server protocol, in case "
"--compression-algorithms=zstd. Valid range is between 1 and 22, "
"inclusive. Default is 3.",
&opt_zstd_compress_level, &opt_zstd_compress_level, nullptr, GET_UINT,
REQUIRED_ARG, 3, 1, 22, nullptr, 0, nullptr},
{nullptr, 0, nullptr, nullptr, nullptr, nullptr, GET_NO_ARG, NO_ARG, 0, 0,
0, nullptr, 0, nullptr}};
static const char *load_default_groups[] = {"mysqladmin", "client", nullptr};
bool get_one_option(int optid, const struct my_option *opt [[maybe_unused]],
char *argument) {
int error = 0;
switch (optid) {
case 'c':
opt_count_iterations = 1;
break;
PARSE_COMMAND_LINE_PASSWORD_OPTION;
case 's':
option_silent++;
break;
case 'W':
#ifdef _WIN32
opt_protocol = MYSQL_PROTOCOL_PIPE;
#endif
break;
case '#':
DBUG_PUSH(argument ? argument : "d:t:o,/tmp/mysqladmin.trace");
break;
#include "client/include/sslopt-case.h"
case 'V':
print_version();
exit(0);
break;
case 'w':
if (argument) {
if ((option_wait = atoi(argument)) <= 0) option_wait = 1;
} else
option_wait = ~(uint)0;
break;
case '?':
case 'I': /* Info */
error++;
break;
case OPT_CHARSETS_DIR:
charsets_dir = argument;
break;
case OPT_MYSQL_PROTOCOL:
opt_protocol =
find_type_or_exit(argument, &sql_protocol_typelib, opt->name);
break;
case OPT_ENABLE_CLEARTEXT_PLUGIN:
using_opt_enable_cleartext_plugin = true;
break;
case 'C':
CLIENT_WARN_DEPRECATED("--compress", "--compression-algorithms");
break;
}
if (error) {
usage();
exit(1);
}
return false;
}
int main(int argc, char *argv[]) {
int error = 0, ho_error, temp_argc;
int first_command;
bool can_handle_passwords;
MYSQL mysql;
char **commands, **temp_argv;
MY_INIT(argv[0]);
auto cleanup_my_init = create_scope_guard([&] { my_end(my_end_arg); });
my_getopt_use_args_separator = true;
MEM_ROOT alloc{PSI_NOT_INSTRUMENTED, 512};
if (load_defaults("my", load_default_groups, &argc, &argv, &alloc))
return EXIT_FAILURE;
my_getopt_use_args_separator = false;
if ((ho_error =
handle_options(&argc, &argv, my_long_options, get_one_option)))
return ho_error;
if (debug_info_flag) my_end_arg = MY_CHECK_ERROR | MY_GIVE_INFO;
if (debug_check_flag) my_end_arg = MY_CHECK_ERROR;
if (argc == 0) {
usage();
return EXIT_FAILURE;
}
temp_argv = mask_password(argc, &argv);
temp_argc = argc;
auto cleanup_temp_argv = create_scope_guard([&] {
temp_argc--;
while (temp_argc >= 0) {
my_free(temp_argv[temp_argc]);
temp_argc--;
}
my_free(temp_argv);
});
commands = temp_argv;
(void)signal(SIGINT, endprog); /* Here if abort */
(void)signal(SIGTERM, endprog); /* Here if abort */
mysql_init(&mysql);
auto cleanup_mysql_handle = create_scope_guard([&] { mysql_close(&mysql); });
if (opt_bind_addr) mysql_options(&mysql, MYSQL_OPT_BIND, opt_bind_addr);
if (opt_compress) mysql_options(&mysql, MYSQL_OPT_COMPRESS, NullS);
if (opt_connect_timeout) {
uint tmp = opt_connect_timeout;
mysql_options(&mysql, MYSQL_OPT_CONNECT_TIMEOUT, (char *)&tmp);
}
if (SSL_SET_OPTIONS(&mysql)) {
fprintf(stderr, "%s", SSL_SET_OPTIONS_ERROR);
return EXIT_FAILURE;
}
if (opt_protocol)
mysql_options(&mysql, MYSQL_OPT_PROTOCOL, (char *)&opt_protocol);
#if defined(_WIN32)
if (shared_memory_base_name)
mysql_options(&mysql, MYSQL_SHARED_MEMORY_BASE_NAME,
shared_memory_base_name);
#endif
mysql_options(&mysql, MYSQL_SET_CHARSET_NAME, default_charset);
error_flags = (myf)(opt_nobeep ? 0 : ME_BELL);
if (opt_compress_algorithm)
mysql_options(&mysql, MYSQL_OPT_COMPRESSION_ALGORITHMS,
opt_compress_algorithm);
mysql_options(&mysql, MYSQL_OPT_ZSTD_COMPRESSION_LEVEL,
&opt_zstd_compress_level);
if (opt_plugin_dir && *opt_plugin_dir)
mysql_options(&mysql, MYSQL_PLUGIN_DIR, opt_plugin_dir);
if (opt_default_auth && *opt_default_auth)
mysql_options(&mysql, MYSQL_DEFAULT_AUTH, opt_default_auth);
mysql_options(&mysql, MYSQL_OPT_CONNECT_ATTR_RESET, nullptr);
mysql_options4(&mysql, MYSQL_OPT_CONNECT_ATTR_ADD, "program_name",
"mysqladmin");
if (using_opt_enable_cleartext_plugin)
mysql_options(&mysql, MYSQL_ENABLE_CLEARTEXT_PLUGIN,
(char *)&opt_enable_cleartext_plugin);
first_command = find_type(argv[0], &command_typelib, FIND_TYPE_BASIC);
can_handle_passwords = first_command == ADMIN_PASSWORD;
mysql_options(&mysql, MYSQL_OPT_CAN_HANDLE_EXPIRED_PASSWORDS,
&can_handle_passwords);
set_server_public_key(&mysql);
set_get_server_public_key_option(&mysql);
set_password_options(&mysql);
if (sql_connect(&mysql, option_wait)) {
/*
We couldn't get an initial connection and will definitely exit.
The following just determines the exit-code we'll give.
*/
const unsigned int err = mysql_errno(&mysql);
if (err >= CR_MIN_ERROR && err <= CR_MAX_ERROR)
error = 1;
else {
/* Return 0 if all commands are PING */
for (; argc > 0; argv++, argc--) {
if (find_type(argv[0], &command_typelib, FIND_TYPE_BASIC) !=
ADMIN_PING) {
error = 1;
break;
}
}
}
} else {
/*
--count=0 aborts right here. Otherwise if --sleep=t ("interval")
is given a t!=0, we get an endless loop, or n iterations if --count=n
was given an n!=0. If --sleep wasn't given, we get one iteration.
To wait, --wait loops the connection-attempts, while --sleep loops
the command execution (endlessly if no --count is given).
*/
while (!interrupted && (!opt_count_iterations || nr_iterations)) {
new_line = false;
if ((error = execute_commands(&mysql, argc, commands))) {
/*
Unknown/malformed command always aborts and can't be --forced.
If the user got confused about the syntax, proceeding would be
dangerous ...
*/
if (error > 0) break;
/*
Command was well-formed, but failed on the server. Might succeed
on retry (if conditions on server change etc.), but needs --force
to retry.
*/
if (!option_force) break;
} /* if((error= ... */
if (interval) /* --sleep=interval given */
{
if (opt_count_iterations && --nr_iterations == 0) break;
/*
If connection was dropped (unintentionally, or due to SHUTDOWN),
re-establish it if --wait ("retry-connect") was given and user
didn't signal for us to die. Otherwise, signal failure.
*/
if (mysql.net.vio == nullptr) {
if (option_wait && !interrupted) {
sleep(1);
sql_connect(&mysql, option_wait);
/*
continue normally and decrease counters so that
"mysqladmin --count=1 --wait=1 shutdown"
cannot loop endlessly.
*/
} else {
/*
connection broke, and we have no order to re-establish it. fail.
*/
if (!option_force) error = 1;
break;
}
} /* lost connection */
sleep(interval);
if (new_line) puts("");
} else
break; /* no --sleep, done looping */
} /* command-loop */
} /* got connection */
free_passwords();
my_free(user);
#if defined(_WIN32)
my_free(shared_memory_base_name);
#endif
return error ? EXIT_FAILURE : EXIT_SUCCESS;
}
void endprog(int signal_number [[maybe_unused]]) { interrupted = true; }
/**
@brief connect to server, optionally waiting for same to come up
@param mysql connection struct
@param wait wait for server to come up?
(0: no, ~0: forever, n: cycles)
@return Operation result
@retval 0 success
@retval 1 failure
*/
static bool sql_connect(MYSQL *mysql, uint wait) {
bool info = false;
for (;;) {
if (mysql_real_connect(mysql, host, user, nullptr, NullS, tcp_port,
unix_port, CLIENT_REMEMBER_OPTIONS)) {
if (ssl_client_check_post_connect_ssl_setup(
mysql, [](const char *err) { fprintf(stderr, "%s\n", err); }))
return true;
if (info) {
fputs("\n", stderr);
(void)fflush(stderr);
}
return false;
}
if (!wait) // was or reached 0, fail
{
if (!option_silent) // print diagnostics
{
if (!host) host = LOCAL_HOST;
my_printf_error(0, "connect to server at '%s' failed\nerror: '%s'",
error_flags, host, mysql_error(mysql));
if (mysql_errno(mysql) == CR_CONNECTION_ERROR) {
fprintf(stderr,
"Check that mysqld is running and that the socket: '%s' "
"exists!\n",
unix_port ? unix_port : mysql_unix_port);
} else if (mysql_errno(mysql) == CR_CONN_HOST_ERROR ||
mysql_errno(mysql) == CR_UNKNOWN_HOST) {
fprintf(stderr, "Check that mysqld is running on %s", host);
fprintf(stderr, " and that the port is %d.\n",
tcp_port ? tcp_port : mysql_port);
fprintf(stderr, "You can check this by doing 'telnet %s %d'\n", host,
tcp_port ? tcp_port : mysql_port);
}
}
return true;
}
if (wait != (uint)~0) wait--; /* count down, one less retry */
if ((mysql_errno(mysql) != CR_CONN_HOST_ERROR) &&
(mysql_errno(mysql) != CR_CONNECTION_ERROR)) {
/*
Error is worse than "server doesn't answer (yet?)";
fail even if we still have "wait-coins" unless --force
was also given.
*/
fprintf(stderr, "Got error: %s\n", mysql_error(mysql));
if (!option_force) return true;
} else if (!option_silent) {
if (!info) {
info = true;
fputs("Waiting for MySQL server to answer", stderr);
(void)fflush(stderr);
} else {
putc('.', stderr);
(void)fflush(stderr);
}
}
sleep(5);
}
}
/**
@brief Execute all commands
@details We try to execute all commands we were given, in the order
given, but return with non-zero as soon as we encounter trouble.
By that token, individual commands can be considered a conjunction
with boolean short-cut.
@return success?
@retval 0 Yes! ALL commands worked!
@retval 1 No, one failed and will never work (malformed): fatal error!
@retval -1 No, one failed on the server, may work next time!
*/
static int execute_commands(MYSQL *mysql, int argc, char **argv) {
const char *status;
/*
MySQL documentation relies on the fact that mysqladmin will
execute commands in the order specified, e.g.
mysqladmin -u root flush-privileges password "newpassword"
to reset a lost root password.
If this behaviour is ever changed, Docs should be notified.
*/
for (; argc > 0; argv++, argc--) {
int option;
bool log_warnings = true;
std::string admin_reset_command = "RESET REPLICA, BINARY LOGS AND GTIDS";
switch (option = find_type(argv[0], &command_typelib, FIND_TYPE_BASIC)) {
case ADMIN_CREATE: {
char buff[FN_REFLEN + 20];
if (argc < 2) {
my_printf_error(0, "Too few arguments to create", error_flags);
return 1;
}
sprintf(buff, "create database `%.*s`", FN_REFLEN, argv[1]);
if (mysql_query(mysql, buff)) {
my_printf_error(0, "CREATE DATABASE failed; error: '%-.200s'",
error_flags, mysql_error(mysql));
return -1;
}
argc--;
argv++;
break;
}
case ADMIN_DROP: {
if (argc < 2) {
my_printf_error(0, "Too few arguments to drop", error_flags);
return 1;
}
if (drop_db(mysql, argv[1])) return -1;
argc--;
argv++;
break;
}
case ADMIN_SHUTDOWN: {
char pidfile[FN_REFLEN];
bool got_pidfile = false;
time_t last_modified = 0;
struct stat pidfile_status;
/*
Only wait for pidfile on local connections
If pidfile doesn't exist, continue without pid file checking
*/
if (mysql->unix_socket &&
(got_pidfile = !get_pidfile(mysql, pidfile)) &&
!stat(pidfile, &pidfile_status))
last_modified = pidfile_status.st_mtime;
if (mysql_query(mysql, "shutdown")) {
my_printf_error(0, "shutdown failed; error: '%s'", error_flags,
mysql_error(mysql));
return -1;
}
argc = 1; /* force SHUTDOWN to be the last command */
if (got_pidfile) {
if (opt_verbose)
printf(
"Shutdown signal sent to server; Waiting for pid file to "
"disappear\n");
/* Wait until pid file is gone */
if (wait_pidfile(pidfile, last_modified, &pidfile_status)) return -1;
}
/* Do not try to print warning as server has gone away */
log_warnings = false;
break;
}
case ADMIN_FLUSH_PRIVILEGES:
CLIENT_WARN_DEPRECATED_NO_REPLACEMENT("flush-privileges");
if (0 != mysql_query(mysql, "flush privileges")) {
my_printf_error(0, "reload failed; error: '%s'", error_flags,
mysql_error(mysql));
return -1;
}
break;
case ADMIN_RELOAD:
CLIENT_WARN_DEPRECATED_NO_REPLACEMENT("reload");
if (mysql_query(mysql, "flush privileges")) {
my_printf_error(0, "reload failed; error: '%s'", error_flags,
mysql_error(mysql));
return -1;
}
break;
case ADMIN_REFRESH:
if (mysql_get_server_version(mysql) < FIRST_SOURCE_COMMAND_VERSION) {
admin_reset_command = "RESET REPLICA, MASTER";
}
if (mysql_query(mysql, "FLUSH PRIVILEGES, STATUS") ||
mysql_query(mysql, "FLUSH TABLES WITH READ LOCK") ||
mysql_query(mysql, admin_reset_command.c_str())) {
my_printf_error(0, "refresh failed; error: '%s'", error_flags,
mysql_error(mysql));
return -1;
}
break;
case ADMIN_VER:
new_line = true;
print_version();
puts(ORACLE_WELCOME_COPYRIGHT_NOTICE("2000"));
printf("Server version\t\t%s\n", mysql_get_server_info(mysql));
printf("Protocol version\t%d\n", mysql_get_proto_info(mysql));
printf("Connection\t\t%s\n", mysql_get_host_info(mysql));
if (mysql->unix_socket)
printf("UNIX socket\t\t%s\n", mysql->unix_socket);
else
printf("TCP port\t\t%d\n", mysql->port);
status = mysql_stat(mysql);
{
char buff[40];
ulong sec;
char *pos = strchr(const_cast<char *>(status), ' ');
*pos++ = 0;
printf("%s\t\t\t", status); /* print label */
if ((status = str2int(pos, 10, 0, LONG_MAX, (long *)&sec))) {
nice_time(sec, buff);
puts(buff); /* print nice time */
while (*status == ' ') status++; /* to next info */
}
}
putc('\n', stdout);
if (status) puts(status);
break;
case ADMIN_PROCESSLIST: {
MYSQL_RES *result;
MYSQL_ROW row;
if (mysql_query(mysql, (opt_verbose ? "show full processlist"
: "show processlist")) ||
!(result = mysql_store_result(mysql))) {
my_printf_error(0, "process list failed; error: '%s'", error_flags,
mysql_error(mysql));
return -1;
}
print_header(result);
while ((row = mysql_fetch_row(result))) print_row(result, row, 0);
print_top(result);
mysql_free_result(result);
new_line = true;
break;
}
case ADMIN_STATUS:
status = mysql_stat(mysql);
if (status) puts(status);
break;
case ADMIN_KILL: {
uint error = 0;
char *pos;
if (argc < 2) {
my_printf_error(0, "Too few arguments to 'kill'", error_flags);
return 1;
}
pos = argv[1];
for (;;) {
char buff[26], *out; /* "KILL " + max 20 digs + NUL */
out = strxmov(buff, "KILL ", NullS);
ullstr(my_strtoull(pos, nullptr, 0), out);
if (mysql_query(mysql, buff)) {
/* out still points to just the number */
my_printf_error(0, "kill failed on %s; error: '%s'", error_flags,
out, mysql_error(mysql));
error = 1;
}
if (!(pos = strchr(pos, ','))) break;
pos++;
}
argc--;
argv++;
if (error) return -1;
break;
}
case ADMIN_DEBUG:
if (mysql_dump_debug_info(mysql)) {
my_printf_error(0, "debug failed; error: '%s'", error_flags,
mysql_error(mysql));
return -1;
}
break;
case ADMIN_VARIABLES: {
MYSQL_RES *res;
MYSQL_ROW row;
new_line = true;
if (mysql_query(mysql, "show /*!40003 GLOBAL */ variables") ||
!(res = mysql_store_result(mysql))) {
my_printf_error(0, "unable to show variables; error: '%s'",
error_flags, mysql_error(mysql));
return -1;
}
print_header(res);
while ((row = mysql_fetch_row(res))) print_row(res, row, 0);
print_top(res);
mysql_free_result(res);
break;
}
case ADMIN_EXTENDED_STATUS: {
MYSQL_RES *res;
MYSQL_ROW row;
uint rownr = 0;
void (*func)(MYSQL_RES *, MYSQL_ROW, uint);
new_line = true;
if (mysql_query(mysql, "show /*!50002 GLOBAL */ status") ||
!(res = mysql_store_result(mysql))) {
my_printf_error(0, "unable to show status; error: '%s'", error_flags,
mysql_error(mysql));
return -1;
}
if (mysql_num_rows(res) >= MAX_MYSQL_VAR) {
my_printf_error(0,
"Too many rows returned: '%llu'. "
"Expecting no more than '%d' rows",
error_flags, (unsigned long long)mysql_num_rows(res),
MAX_MYSQL_VAR);
mysql_free_result(res);
return -1;
}
if (!opt_vertical)
print_header(res);
else {
if (!ex_status_printed) {
store_values(res);
truncate_names(); /* Does some printing also */
} else {
print_relative_line();
print_relative_header();
print_relative_line();
}
}
/* void (*func) (MYSQL_RES*, MYSQL_ROW, uint); */
if (opt_relative && !opt_vertical)
func = print_relative_row;
else if (opt_vertical)
func = print_relative_row_vert;
else
func = print_row;
while ((row = mysql_fetch_row(res))) (*func)(res, row, rownr++);
if (opt_vertical) {
if (ex_status_printed) {
putchar('\n');
print_relative_line();
}
} else
print_top(res);
ex_status_printed = true; /* From now on the output will be relative */
mysql_free_result(res);
break;
}
case ADMIN_FLUSH_LOGS: {
std::string command;
if (argc > 1) {
bool first_arg = true;
for (command = "FLUSH "; argc > 1; argc--, argv++) {
if (!first_arg) command += ",";
if (!my_strcasecmp(&my_charset_latin1, argv[1], "binary"))
command += " BINARY LOGS";
else if (!my_strcasecmp(&my_charset_latin1, argv[1], "engine"))
command += " ENGINE LOGS";
else if (!my_strcasecmp(&my_charset_latin1, argv[1], "error"))
command += " ERROR LOGS";
else if (!my_strcasecmp(&my_charset_latin1, argv[1], "general"))
command += " GENERAL LOGS";
else if (!my_strcasecmp(&my_charset_latin1, argv[1], "relay"))
command += " RELAY LOGS";
else if (!my_strcasecmp(&my_charset_latin1, argv[1], "slow"))
command += " SLOW LOGS";
else {
/*
Not a valid log type, assume it's the next command.
Remove the trailing comma if any of the log types is specified
or flush all if no specific log type is specified.
*/
if (!first_arg)
command.resize(command.size() - 1);
else
command = "FLUSH LOGS";
break;
}
if (first_arg) first_arg = false;
}
} else
command = "FLUSH LOGS";
if (mysql_query(mysql, command.c_str())) {
my_printf_error(0, "refresh failed; error: '%s'", error_flags,
mysql_error(mysql));
return -1;
}
break;
}
case ADMIN_FLUSH_HOSTS: {
if (mysql_query(mysql,
"TRUNCATE TABLE performance_schema.host_cache")) {
my_printf_error(0, "refresh failed; error: '%s'", error_flags,
mysql_error(mysql));
return -1;
}
break;
}
case ADMIN_FLUSH_TABLES: {
if (mysql_query(mysql, "flush tables")) {
my_printf_error(0, "refresh failed; error: '%s'", error_flags,
mysql_error(mysql));
return -1;
}
break;
}
case ADMIN_FLUSH_STATUS: {
if (mysql_query(mysql, "flush status")) {
my_printf_error(0, "refresh failed; error: '%s'", error_flags,
mysql_error(mysql));
return -1;
}
break;
}
case ADMIN_PASSWORD: {
char buff[128];
char *typed_password = nullptr, *verified = nullptr, *tmp = nullptr;
bool log_off = true, err = false;
size_t password_len;
if (argc < 1) {