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/*
Copyright (c) 2003 Novell, Inc. All Rights Reserved.
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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <stdlib.h>
#include <stdio.h>
#include <netdb.h>
#include <sys/stat.h>
#include <monitor.h>
#include <strings.h>
#include <getopt.h>
#include <screen.h>
#include <dirent.h>
#include "my_config.h"
#include "my_manage.h"
#include "mysql_version.h"
/******************************************************************************
global variables
******************************************************************************/
char autoclose;
char basedir[PATH_MAX];
char checktables;
char datadir[PATH_MAX];
char pid_file[PATH_MAX];
char address[PATH_MAX];
char port[PATH_MAX];
char err_log[PATH_MAX];
char safe_log[PATH_MAX];
char mysqld[PATH_MAX];
char hostname[PATH_MAX];
char default_option[PATH_MAX];
FILE *log_fd= NULL;
/******************************************************************************
prototypes
******************************************************************************/
void usage(void);
void vlog(char *, va_list);
void log(char *, ...);
void start_defaults(int, char *[]);
void finish_defaults();
void read_defaults(arg_list_t *);
void parse_args(int, char *[]);
void get_options(int, char *[]);
void check_data_vol();
void check_setup();
void check_tables();
void mysql_start(int, char *[]);
void parse_setvar(char *arg);
/******************************************************************************
functions
******************************************************************************/
/******************************************************************************
usage()
Show usage.
******************************************************************************/
void usage(void)
{
// keep the screen up
setscreenmode(SCR_NO_MODE);
puts("\
\n\
usage: mysqld_safe [options]\n\
\n\
Program to start the MySQL daemon and restart it if it dies unexpectedly.\n\
All options, besides those listed below, are passed on to the MySQL daemon.\n\
\n\
options:\n\
\n\
--autoclose Automatically close the mysqld_safe screen.\n\
\n\
--check-tables Check the tables before starting the MySQL daemon.\n\
\n\
--err-log=<file> Send the MySQL daemon error output to <file>.\n\
\n\
--help Show this help information.\n\
\n\
--mysqld=<file> Use the <file> MySQL daemon.\n\
\n\
");
exit(-1);
}
/******************************************************************************
vlog()
Log the message.
******************************************************************************/
void vlog(char *format, va_list ap)
{
vfprintf(stdout, format, ap);
fflush(stdout);
if (log_fd)
{
vfprintf(log_fd, format, ap);
fflush(log_fd);
}
}
/******************************************************************************
log()
Log the message.
******************************************************************************/
void log(char *format, ...)
{
va_list ap;
va_start(ap, format);
vlog(format, ap);
va_end(ap);
}
/******************************************************************************
start_defaults()
Start setting the defaults.
******************************************************************************/
void start_defaults(int argc, char *argv[])
{
struct stat buf;
int i;
// default options
static char *default_options[]=
{
"--no-defaults",
"--defaults-file=",
"--defaults-extra-file=",
NULL
};
// autoclose
autoclose= FALSE;
// basedir
get_basedir(argv[0], basedir);
// check-tables
checktables= FALSE;
// hostname
if (gethostname(hostname, PATH_MAX) < 0)
{
// default
strcpy(hostname, "mysql");
}
// address
snprintf(address, PATH_MAX, "0.0.0.0");
// port
snprintf(port, PATH_MAX, "%d", MYSQL_PORT);
// default option
default_option[0]= NULL;
for (i= 0; (argc > 1) && default_options[i]; i++)
{
if (!strnicmp(argv[1], default_options[i], strlen(default_options[i])))
{
strncpy(default_option, argv[1], PATH_MAX);
break;
}
}
// set after basedir is established
datadir[0]= NULL;
pid_file[0]= NULL;
err_log[0]= NULL;
safe_log[0]= NULL;
mysqld[0]= NULL;
}
/******************************************************************************
finish_defaults()
Finish settig the defaults.
******************************************************************************/
void finish_defaults()
{
struct stat buf;
int i;
// datadir
if (!datadir[0])
snprintf(datadir, PATH_MAX, "%s/data", basedir);
// pid-file
if (!pid_file[0])
snprintf(pid_file, PATH_MAX, "%s/%s.pid", datadir, hostname);
// err-log
if (!err_log[0])
snprintf(err_log, PATH_MAX, "%s/%s.err", datadir, hostname);
// safe-log
if (!safe_log[0])
snprintf(safe_log, PATH_MAX, "%s/%s.safe", datadir, hostname);
// mysqld
if (!mysqld[0])
snprintf(mysqld, PATH_MAX, "%s/bin/mysqld-max", basedir);
if (stat(mysqld, &buf))
{
snprintf(mysqld, PATH_MAX, "%s/bin/mysqld", basedir);
}
}
/******************************************************************************
read_defaults()
Read the defaults.
******************************************************************************/
void read_defaults(arg_list_t *pal)
{
arg_list_t al;
char defaults_file[PATH_MAX];
char mydefaults[PATH_MAX];
char line[PATH_MAX];
FILE *fp;
// defaults output file
snprintf(defaults_file, PATH_MAX, "%s/bin/defaults.out", basedir);
remove(defaults_file);
// mysqladmin file
snprintf(mydefaults, PATH_MAX, "%s/bin/my_print_defaults", basedir);
// args
init_args(&al);
add_arg(&al, mydefaults);
if (default_option[0])
add_arg(&al, default_option);
add_arg(&al, "mysqld");
add_arg(&al, "server");
add_arg(&al, "mysqld_safe");
add_arg(&al, "safe_mysqld");
spawn(mydefaults, &al, TRUE, NULL, defaults_file, NULL);
free_args(&al);
// gather defaults
if ((fp= fopen(defaults_file, "r")) != NULL)
{
while (fgets(line, PATH_MAX, fp))
{
char *p;
// remove end-of-line character
if ((p= strrchr(line, '\n')) != NULL)
*p= '\0';
// add the option as an argument
add_arg(pal, line);
}
fclose(fp);
}
// remove file
remove(defaults_file);
}
/******************************************************************************
parse_args()
Get the options.
******************************************************************************/
void parse_args(int argc, char *argv[])
{
int index= 0;
int c;
// parse options
enum opts
{
OPT_BASEDIR= 0xFF,
OPT_DATADIR,
OPT_PID_FILE,
OPT_BIND_ADDRESS,
OPT_PORT,
OPT_ERR_LOG,
OPT_SAFE_LOG,
OPT_MYSQLD,
OPT_HELP,
OPT_SETVAR
};
static struct option options[]=
{
{"autoclose", no_argument, &autoclose, TRUE},
{"basedir", required_argument, 0, OPT_BASEDIR},
{"check-tables", no_argument, &checktables, TRUE},
{"datadir", required_argument, 0, OPT_DATADIR},
{"pid-file", required_argument, 0, OPT_PID_FILE},
{"bind-address", required_argument, 0, OPT_BIND_ADDRESS},
{"port", required_argument, 0, OPT_PORT},
{"err-log", required_argument, 0, OPT_ERR_LOG},
{"safe-log", required_argument, 0, OPT_SAFE_LOG},
{"mysqld", required_argument, 0, OPT_MYSQLD},
{"help", no_argument, 0, OPT_HELP},
{"set-variable", required_argument, 0, OPT_SETVAR},
{0, 0, 0, 0}
};
// we have to reset getopt_long because we use it multiple times
optind= 1;
// turn off error reporting
opterr= 0;
while ((c= getopt_long(argc, argv, "b:h:P:", options, &index)) >= 0)
{
switch (c) {
case OPT_BASEDIR:
case 'b':
strcpy(basedir, optarg);
break;
case OPT_DATADIR:
case 'h':
strcpy(datadir, optarg);
break;
case OPT_PID_FILE:
strcpy(pid_file, optarg);
break;
case OPT_BIND_ADDRESS:
strcpy(address, optarg);
break;
case OPT_PORT:
case 'P':
strcpy(port, optarg);
break;
case OPT_ERR_LOG:
strcpy(err_log, optarg);
break;
case OPT_SAFE_LOG:
strcpy(safe_log, optarg);
break;
case OPT_MYSQLD:
strcpy(mysqld, optarg);
break;
case OPT_SETVAR:
parse_setvar(optarg);
break;
case OPT_HELP:
usage();
break;
default:
// ignore
break;
}
}
}
/*
parse_setvar(char *arg)
Pasrsing for port just to display the port num on the mysqld_safe screen
*/
void parse_setvar(char *arg)
{
char *pos;
if ((pos= strindex(arg, "port")))
{
for (; *pos && *pos != '='; pos++);
if (*pos)
strcpy(port, pos + 1);
}
}
/******************************************************************************
/******************************************************************************
get_options()
Get the options.
******************************************************************************/
void get_options(int argc, char *argv[])
{
arg_list_t al;
// start defaults
start_defaults(argc, argv);
// default file arguments
init_args(&al);
add_arg(&al, "ignore");
read_defaults(&al);
parse_args(al.argc, al.argv);
free_args(&al);
// command-line arguments
parse_args(argc, argv);
// finish defaults
finish_defaults();
}
/******************************************************************************
check_data_vol()
Check the database volume.
******************************************************************************/
void check_data_vol()
{
// warn if the data is on a Traditional volume
struct volume_info vol;
char buff[PATH_MAX];
char *p;
// clear struct
memset(&vol, 0, sizeof(vol));
// find volume name
strcpy(buff, datadir);
if (p= strchr(buff, ':'))
{
// terminate after volume name
*p= 0;
}
else
{
// assume SYS volume
strcpy(buff, "SYS");
}
// retrieve information
netware_vol_info_from_name(&vol, buff);
if ((vol.flags & VOL_NSS_PRESENT) == 0)
{
log("Error: Either the data directory does not exist or is not on an NSS volume!\n\n");
exit(-1);
}
}
/******************************************************************************
check_setup()
Check the current setup.
******************************************************************************/
void check_setup()
{
struct stat info;
char temp[PATH_MAX];
// remove any current pid_file
if (!stat(pid_file, &info) && (remove(pid_file) < 0))
{
log("ERROR: Unable to remove current pid file!\n\n");
exit(-1);
}
// check the data volume
check_data_vol();
// check for a database
snprintf(temp, PATH_MAX, "%s/mysql/host.frm", datadir);
if (stat(temp, &info))
{
log("ERROR: No database found in the data directory!\n\n");
exit(-1);
}
}
/******************************************************************************
check_tables()
Check the database tables.
******************************************************************************/
void check_tables()
{
arg_list_t al;
char mycheck[PATH_MAX];
char table[PATH_MAX];
char db[PATH_MAX];
DIR *datadir_entry, *db_entry, *table_entry;
// status
log("checking tables...\n");
// list databases
if ((datadir_entry= opendir(datadir)) == NULL)
{
return;
}
while ((db_entry= readdir(datadir_entry)) != NULL)
{
if (db_entry->d_name[0] == '.')
{
// Skip
}
else if (S_ISDIR(db_entry->d_type))
{
// create long db name
snprintf(db, PATH_MAX, "%s/%s", datadir, db_entry->d_name);
// list tables
if ((db_entry= opendir(db)) == NULL)
{
continue;
}
while ((table_entry= readdir(db_entry)) != NULL)
{
// create long table name
snprintf(table, PATH_MAX, "%s/%s", db, strlwr(table_entry->d_name));
if (strindex(table, ".myi"))
{
// ** myisamchk
// mysqladmin file
snprintf(mycheck, PATH_MAX, "%s/bin/myisamchk", basedir);
// args
init_args(&al);
add_arg(&al, mycheck);
add_arg(&al, "--silent");
add_arg(&al, "--force");
add_arg(&al, "--fast");
add_arg(&al, "--medium-check");
add_arg(&al, "-O");
add_arg(&al, "key_buffer=64M");
add_arg(&al, "-O");
add_arg(&al, "sort_buffer=64M");
add_arg(&al, table);
spawn(mycheck, &al, TRUE, NULL, NULL, NULL);
free_args(&al);
}
else if (strindex(table, ".ism"))
{
// ** isamchk
// mysqladmin file
snprintf(mycheck, PATH_MAX, "%s/bin/isamchk", basedir);
// args
init_args(&al);
add_arg(&al, mycheck);
add_arg(&al, "--silent");
add_arg(&al, "--force");
add_arg(&al, "-O");
add_arg(&al, "sort_buffer=64M");
add_arg(&al, table);
spawn(mycheck, &al, TRUE, NULL, NULL, NULL);
free_args(&al);
}
}
}
}
}
/******************************************************************************
mysql_start()
Start the mysql server.
******************************************************************************/
void mysql_start(int argc, char *argv[])
{
arg_list_t al;
int i, j, err;
struct stat info;
time_t cal;
struct tm lt;
char stamp[PATH_MAX];
char skip;
// private options
static char *private_options[]=
{
"--autoclose",
"--check-tables",
"--help",
"--err-log=",
"--mysqld=",
NULL
};
// args
init_args(&al);
add_arg(&al, "%s", mysqld);
// parent args
for (i= 1; i < argc; i++)
{
skip= FALSE;
// skip private arguments
for (j= 0; private_options[j]; j++)
{
if (!strnicmp(argv[i], private_options[j], strlen(private_options[j])))
{
skip= TRUE;
break;
}
}
if (!skip)
{
add_arg(&al, "%s", argv[i]);
}
}
// spawn
do
{
// check the database tables
if (checktables)
check_tables();
// status
time(&cal);
localtime_r(&cal, <);
strftime(stamp, PATH_MAX, "%d %b %Y %H:%M:%S", <);
log("mysql started : %s\n", stamp);
// spawn mysqld
spawn(mysqld, &al, TRUE, NULL, NULL, err_log);
}
while (!stat(pid_file, &info));
// status
time(&cal);
localtime_r(&cal, <);
strftime(stamp, PATH_MAX, "%d %b %Y %H:%M:%S", <);
log("mysql stopped : %s\n\n", stamp);
// free args
free_args(&al);
}
/******************************************************************************
main()
******************************************************************************/
int main(int argc, char **argv)
{
char temp[PATH_MAX];
// get the options
get_options(argc, argv);
// keep the screen up
if (!autoclose)
setscreenmode(SCR_NO_MODE);
// create log file
log_fd= fopen(safe_log, "w+");
// header
log("MySQL Server %s, for %s (%s)\n\n", VERSION, SYSTEM_TYPE, MACHINE_TYPE);
// status
log("address : %s\n", address);
log("port : %s\n", port);
log("daemon : %s\n", mysqld);
log("base directory : %s\n", basedir);
log("data directory : %s\n", datadir);
log("pid file : %s\n", pid_file);
log("error file : %s\n", err_log);
log("log file : %s\n", safe_log);
log("\n");
// check setup
check_setup();
// start the MySQL server
mysql_start(argc, argv);
// close log file
if (log_fd)
fclose(log_fd);
return 0;
}
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