libmysql.c
上传用户:tsgydb
上传日期:2007-04-14
资源大小:10674k
文件大小:69k
- /* Copyright (C) 2000 MySQL AB & MySQL Finland AB & TCX DataKonsult AB
-
- This library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Library General Public
- License as published by the Free Software Foundation; either
- version 2 of the License, or (at your option) any later version.
-
- This library 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
- Library General Public License for more details.
-
- You should have received a copy of the GNU Library General Public
- License along with this library; if not, write to the Free
- Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
- MA 02111-1307, USA */
- #define DONT_USE_RAID
- #if defined(__WIN__) || defined(_WIN32) || defined(_WIN64)
- #include <winsock.h>
- #include <odbcinst.h>
- #endif
- #include <global.h>
- #include <my_sys.h>
- #include <mysys_err.h>
- #include <m_string.h>
- #include <m_ctype.h>
- #include "mysql.h"
- #include "mysql_version.h"
- #include "mysqld_error.h"
- #include "errmsg.h"
- #include <violite.h>
- #include <sys/stat.h>
- #include <signal.h>
- #include <time.h>
- #ifdef HAVE_PWD_H
- #include <pwd.h>
- #endif
- #if !defined(MSDOS) && !defined(__WIN__)
- #include <sys/socket.h>
- #include <netinet/in.h>
- #include <arpa/inet.h>
- #include <netdb.h>
- #ifdef HAVE_SELECT_H
- # include <select.h>
- #endif
- #ifdef HAVE_SYS_SELECT_H
- #include <sys/select.h>
- #endif
- #endif
- #ifdef HAVE_SYS_UN_H
- # include <sys/un.h>
- #endif
- #if defined(THREAD) && !defined(__WIN__)
- #include <my_pthread.h> /* because of signal() */
- #endif
- #ifndef INADDR_NONE
- #define INADDR_NONE -1
- #endif
- static my_bool mysql_client_init=0;
- uint mysql_port=0;
- my_string mysql_unix_port=0;
- #define CLIENT_CAPABILITIES (CLIENT_LONG_PASSWORD | CLIENT_LONG_FLAG | CLIENT_LOCAL_FILES | CLIENT_TRANSACTIONS)
- #ifdef __WIN__
- #define CONNECT_TIMEOUT 20
- #else
- #define CONNECT_TIMEOUT 0
- #endif
- #if defined(MSDOS) || defined(__WIN__)
- #define ERRNO WSAGetLastError()
- #define perror(A)
- #else
- #include <errno.h>
- #define ERRNO errno
- #define SOCKET_ERROR -1
- #define closesocket(A) close(A)
- #endif
- static void mysql_once_init(void);
- static MYSQL_DATA *read_rows (MYSQL *mysql,MYSQL_FIELD *fields,
- uint field_count);
- static int read_one_row(MYSQL *mysql,uint fields,MYSQL_ROW row,
- ulong *lengths);
- static void end_server(MYSQL *mysql);
- static void read_user_name(char *name);
- static void append_wild(char *to,char *end,const char *wild);
- static my_bool mysql_reconnect(MYSQL *mysql);
- static int send_file_to_server(MYSQL *mysql,const char *filename);
- static sig_handler pipe_sig_handler(int sig);
- static ulong mysql_sub_escape_string(CHARSET_INFO *charset_info, char *to,
- const char *from, ulong length);
- /*
- Let the user specify that we don't want SIGPIPE; This doesn't however work
- with threaded applications as we can have multiple read in progress.
- */
- #if !defined(__WIN__) && defined(SIGPIPE) && !defined(THREAD)
- #define init_sigpipe_variables sig_return old_signal_handler=(sig_return) 0;
- #define set_sigpipe(mysql) if ((mysql)->client_flag & CLIENT_IGNORE_SIGPIPE) old_signal_handler=signal(SIGPIPE,pipe_sig_handler)
- #define reset_sigpipe(mysql) if ((mysql)->client_flag & CLIENT_IGNORE_SIGPIPE) signal(SIGPIPE,old_signal_handler);
- #else
- #define init_sigpipe_variables
- #define set_sigpipe(mysql)
- #define reset_sigpipe(mysql)
- #endif
- /****************************************************************************
- * A modified version of connect(). connect2() allows you to specify
- * a timeout value, in seconds, that we should wait until we
- * derermine we can't connect to a particular host. If timeout is 0,
- * connect2() will behave exactly like connect().
- *
- * Base version coded by Steve Bernacki, Jr. <steve@navinet.net>
- *****************************************************************************/
- static int connect2(my_socket s, const struct sockaddr *name, uint namelen,
- uint timeout)
- {
- #if defined(__WIN__)
- return connect(s, (struct sockaddr*) name, namelen);
- #else
- int flags, res, s_err;
- SOCKOPT_OPTLEN_TYPE s_err_size = sizeof(uint);
- fd_set sfds;
- struct timeval tv;
- time_t start_time, now_time;
- /* If they passed us a timeout of zero, we should behave
- * exactly like the normal connect() call does.
- */
- if (timeout == 0)
- return connect(s, (struct sockaddr*) name, namelen);
- flags = fcntl(s, F_GETFL, 0); /* Set socket to not block */
- #ifdef O_NONBLOCK
- fcntl(s, F_SETFL, flags | O_NONBLOCK); /* and save the flags.. */
- #endif
- res = connect(s, (struct sockaddr*) name, namelen);
- s_err = errno; /* Save the error... */
- fcntl(s, F_SETFL, flags);
- if ((res != 0) && (s_err != EINPROGRESS))
- {
- errno = s_err; /* Restore it */
- return(-1);
- }
- if (res == 0) /* Connected quickly! */
- return(0);
- /* Otherwise, our connection is "in progress." We can use
- * the select() call to wait up to a specified period of time
- * for the connection to suceed. If select() returns 0
- * (after waiting howevermany seconds), our socket never became
- * writable (host is probably unreachable.) Otherwise, if
- * select() returns 1, then one of two conditions exist:
- *
- * 1. An error occured. We use getsockopt() to check for this.
- * 2. The connection was set up sucessfully: getsockopt() will
- * return 0 as an error.
- *
- * Thanks goes to Andrew Gierth <andrew@erlenstar.demon.co.uk>
- * who posted this method of timing out a connect() in
- * comp.unix.programmer on August 15th, 1997.
- */
- FD_ZERO(&sfds);
- FD_SET(s, &sfds);
- /*
- * select could be interrupted by a signal, and if it is,
- * the timeout should be adjusted and the select restarted
- * to work around OSes that don't restart select and
- * implementations of select that don't adjust tv upon
- * failure to reflect the time remaining
- */
- start_time = time(NULL);
- for (;;)
- {
- tv.tv_sec = (long) timeout;
- tv.tv_usec = 0;
- if ((res = select(s+1, NULL, &sfds, NULL, &tv)) >= 0)
- break;
- now_time=time(NULL);
- timeout-= (uint) (now_time - start_time);
- if (errno != EINTR || (int) timeout <= 0)
- return -1;
- }
- /* select() returned something more interesting than zero, let's
- * see if we have any errors. If the next two statements pass,
- * we've got an open socket!
- */
- s_err=0;
- if (getsockopt(s, SOL_SOCKET, SO_ERROR, (char*) &s_err, &s_err_size) != 0)
- return(-1);
- if (s_err)
- { /* getsockopt could succeed */
- errno = s_err;
- return(-1); /* but return an error... */
- }
- return(0); /* It's all good! */
- #endif
- }
- /*
- ** Create a named pipe connection
- */
- #ifdef __WIN__
- HANDLE create_named_pipe(NET *net, uint connect_timeout, char **arg_host,
- char **arg_unix_socket)
- {
- HANDLE hPipe=INVALID_HANDLE_VALUE;
- char szPipeName [ 257 ];
- DWORD dwMode;
- int i;
- my_bool testing_named_pipes=0;
- char *host= *arg_host, *unix_socket= *arg_unix_socket;
- if ( ! unix_socket || (unix_socket)[0] == 0x00)
- unix_socket = mysql_unix_port;
- if (!host || !strcmp(host,LOCAL_HOST))
- host=LOCAL_HOST_NAMEDPIPE;
- sprintf( szPipeName, "\\%s\pipe\%s", host, unix_socket);
- DBUG_PRINT("info",("Server name: '%s'. Named Pipe: %s",
- host, unix_socket));
- for (i=0 ; i < 100 ; i++) /* Don't retry forever */
- {
- if ((hPipe = CreateFile(szPipeName,
- GENERIC_READ | GENERIC_WRITE,
- 0,
- NULL,
- OPEN_EXISTING,
- 0,
- NULL )) != INVALID_HANDLE_VALUE)
- break;
- if (GetLastError() != ERROR_PIPE_BUSY)
- {
- net->last_errno=CR_NAMEDPIPEOPEN_ERROR;
- sprintf(net->last_error,ER(net->last_errno),host, unix_socket,
- (ulong) GetLastError());
- return INVALID_HANDLE_VALUE;
- }
- /* wait for for an other instance */
- if (! WaitNamedPipe(szPipeName, connect_timeout*1000) )
- {
- net->last_errno=CR_NAMEDPIPEWAIT_ERROR;
- sprintf(net->last_error,ER(net->last_errno),host, unix_socket,
- (ulong) GetLastError());
- return INVALID_HANDLE_VALUE;
- }
- }
- if (hPipe == INVALID_HANDLE_VALUE)
- {
- net->last_errno=CR_NAMEDPIPEOPEN_ERROR;
- sprintf(net->last_error,ER(net->last_errno),host, unix_socket,
- (ulong) GetLastError());
- return INVALID_HANDLE_VALUE;
- }
- dwMode = PIPE_READMODE_BYTE | PIPE_WAIT;
- if ( !SetNamedPipeHandleState(hPipe, &dwMode, NULL, NULL) )
- {
- CloseHandle( hPipe );
- net->last_errno=CR_NAMEDPIPESETSTATE_ERROR;
- sprintf(net->last_error,ER(net->last_errno),host, unix_socket,
- (ulong) GetLastError());
- return INVALID_HANDLE_VALUE;
- }
- *arg_host=host ; *arg_unix_socket=unix_socket; /* connect arg */
- return (hPipe);
- }
- #endif
- /*****************************************************************************
- ** read a packet from server. Give error message if socket was down
- ** or packet is an error message
- *****************************************************************************/
- static uint
- net_safe_read(MYSQL *mysql)
- {
- NET *net= &mysql->net;
- uint len=0;
- init_sigpipe_variables
- /* Don't give sigpipe errors if the client doesn't want them */
- set_sigpipe(mysql);
- if (net->vio != 0)
- len=my_net_read(net);
- reset_sigpipe(mysql);
- if (len == packet_error || len == 0)
- {
- DBUG_PRINT("error",("Wrong connection or packet. fd: %s len: %d",
- vio_description(net->vio),len));
- end_server(mysql);
- net->last_errno=(net->last_errno == ER_NET_PACKET_TOO_LARGE ?
- CR_NET_PACKET_TOO_LARGE:
- CR_SERVER_LOST);
- strmov(net->last_error,ER(net->last_errno));
- return(packet_error);
- }
- if (net->read_pos[0] == 255)
- {
- if (len > 3)
- {
- char *pos=(char*) net->read_pos+1;
- if (mysql->protocol_version > 9)
- { /* New client protocol */
- net->last_errno=uint2korr(pos);
- pos+=2;
- len-=2;
- }
- else
- {
- net->last_errno=CR_UNKNOWN_ERROR;
- len--;
- }
- (void) strmake(net->last_error,(char*) pos,
- min(len,sizeof(net->last_error)-1));
- }
- else
- {
- net->last_errno=CR_UNKNOWN_ERROR;
- (void) strmov(net->last_error,ER(net->last_errno));
- }
- DBUG_PRINT("error",("Got error: %d (%s)", net->last_errno,
- net->last_error));
- return(packet_error);
- }
- return len;
- }
- /* Get the length of next field. Change parameter to point at fieldstart */
- static ulong
- net_field_length(uchar **packet)
- {
- reg1 uchar *pos= *packet;
- if (*pos < 251)
- {
- (*packet)++;
- return (ulong) *pos;
- }
- if (*pos == 251)
- {
- (*packet)++;
- return NULL_LENGTH;
- }
- if (*pos == 252)
- {
- (*packet)+=3;
- return (ulong) uint2korr(pos+1);
- }
- if (*pos == 253)
- {
- (*packet)+=4;
- return (ulong) uint3korr(pos+1);
- }
- (*packet)+=9; /* Must be 254 when here */
- return (ulong) uint4korr(pos+1);
- }
- /* Same as above, but returns ulonglong values */
- static my_ulonglong
- net_field_length_ll(uchar **packet)
- {
- reg1 uchar *pos= *packet;
- if (*pos < 251)
- {
- (*packet)++;
- return (my_ulonglong) *pos;
- }
- if (*pos == 251)
- {
- (*packet)++;
- return (my_ulonglong) NULL_LENGTH;
- }
- if (*pos == 252)
- {
- (*packet)+=3;
- return (my_ulonglong) uint2korr(pos+1);
- }
- if (*pos == 253)
- {
- (*packet)+=4;
- return (my_ulonglong) uint3korr(pos+1);
- }
- (*packet)+=9; /* Must be 254 when here */
- #ifdef NO_CLIENT_LONGLONG
- return (my_ulonglong) uint4korr(pos+1);
- #else
- return (my_ulonglong) uint8korr(pos+1);
- #endif
- }
- static void free_rows(MYSQL_DATA *cur)
- {
- if (cur)
- {
- free_root(&cur->alloc,MYF(0));
- my_free((gptr) cur,MYF(0));
- }
- }
- static int
- simple_command(MYSQL *mysql,enum enum_server_command command, const char *arg,
- uint length, my_bool skipp_check)
- {
- NET *net= &mysql->net;
- int result= -1;
- init_sigpipe_variables
- /* Don't give sigpipe errors if the client doesn't want them */
- set_sigpipe(mysql);
- if (mysql->net.vio == 0)
- { /* Do reconnect if possible */
- if (mysql_reconnect(mysql))
- {
- net->last_errno=CR_SERVER_GONE_ERROR;
- strmov(net->last_error,ER(net->last_errno));
- goto end;
- }
- }
- if (mysql->status != MYSQL_STATUS_READY)
- {
- strmov(net->last_error,ER(mysql->net.last_errno=CR_COMMANDS_OUT_OF_SYNC));
- goto end;
- }
- mysql->net.last_error[0]=0;
- mysql->net.last_errno=0;
- mysql->info=0;
- mysql->affected_rows= ~(my_ulonglong) 0;
- net_clear(net); /* Clear receive buffer */
- if (!arg)
- arg="";
- if (net_write_command(net,(uchar) command,arg,
- length ? length : (ulong) strlen(arg)))
- {
- DBUG_PRINT("error",("Can't send command to server. Error: %d",errno));
- end_server(mysql);
- if (mysql_reconnect(mysql) ||
- net_write_command(net,(uchar) command,arg,
- length ? length : (ulong) strlen(arg)))
- {
- net->last_errno=CR_SERVER_GONE_ERROR;
- strmov(net->last_error,ER(net->last_errno));
- goto end;
- }
- }
- result=0;
- if (!skipp_check)
- result= ((mysql->packet_length=net_safe_read(mysql)) == packet_error ?
- -1 : 0);
- end:
- reset_sigpipe(mysql);
- return result;
- }
- static void free_old_query(MYSQL *mysql)
- {
- DBUG_ENTER("free_old_query");
- if (mysql->fields)
- free_root(&mysql->field_alloc,MYF(0));
- init_alloc_root(&mysql->field_alloc,8192,0); /* Assume rowlength < 8192 */
- mysql->fields=0;
- mysql->field_count=0; /* For API */
- DBUG_VOID_RETURN;
- }
- #if defined(HAVE_GETPWUID) && defined(NO_GETPWUID_DECL)
- struct passwd *getpwuid(uid_t);
- char* getlogin(void);
- #endif
- #if !defined(MSDOS) && ! defined(VMS) && !defined(__WIN__)
- static void read_user_name(char *name)
- {
- DBUG_ENTER("read_user_name");
- if (geteuid() == 0)
- (void) strmov(name,"root"); /* allow use of surun */
- else
- {
- #ifdef HAVE_GETPWUID
- struct passwd *skr;
- const char *str;
- if ((str=getlogin()) == NULL)
- {
- if ((skr=getpwuid(geteuid())) != NULL)
- str=skr->pw_name;
- else if (!(str=getenv("USER")) && !(str=getenv("LOGNAME")) &&
- !(str=getenv("LOGIN")))
- str="UNKNOWN_USER";
- }
- (void) strmake(name,str,USERNAME_LENGTH);
- #elif HAVE_CUSERID
- (void) cuserid(name);
- #else
- strmov(name,"UNKNOWN_USER");
- #endif
- }
- DBUG_VOID_RETURN;
- }
- #else /* If MSDOS || VMS */
- static void read_user_name(char *name)
- {
- char *str=getenv("USER"); /* ODBC will send user variable */
- strmake(name,str ? str : "ODBC", USERNAME_LENGTH);
- }
- #endif
- #ifdef __WIN__
- static my_bool is_NT(void)
- {
- char *os=getenv("OS");
- return (os && !strcmp(os, "Windows_NT")) ? 1 : 0;
- }
- #endif
- /*
- ** Expand wildcard to a sql string
- */
- static void
- append_wild(char *to, char *end, const char *wild)
- {
- end-=5; /* Some extra */
- if (wild && wild[0])
- {
- to=strmov(to," like '");
- while (*wild && to < end)
- {
- if (*wild == '\' || *wild == ''')
- *to++='\';
- *to++= *wild++;
- }
- if (*wild) /* Too small buffer */
- *to++='%'; /* Nicer this way */
- to[0]=''';
- to[1]=0;
- }
- }
- /**************************************************************************
- ** Init debugging if MYSQL_DEBUG environment variable is found
- **************************************************************************/
- void STDCALL
- mysql_debug(const char *debug __attribute__((unused)))
- {
- #ifndef DBUG_OFF
- char *env;
- if (_db_on_)
- return; /* Already using debugging */
- if (debug)
- {
- DEBUGGER_ON;
- DBUG_PUSH(debug);
- }
- else if ((env = getenv("MYSQL_DEBUG")))
- {
- DEBUGGER_ON;
- DBUG_PUSH(env);
- #if !defined(_WINVER) && !defined(WINVER)
- puts("n-------------------------------------------------------");
- puts("MYSQL_DEBUG found. libmysql started with the following:");
- puts(env);
- puts("-------------------------------------------------------n");
- #else
- {
- char buff[80];
- strmov(strmov(buff,"libmysql: "),env);
- MessageBox((HWND) 0,"Debugging variable MYSQL_DEBUG used",buff,MB_OK);
- }
- #endif
- }
- #endif
- }
- /**************************************************************************
- ** Close the server connection if we get a SIGPIPE
- ARGSUSED
- **************************************************************************/
- static sig_handler
- pipe_sig_handler(int sig __attribute__((unused)))
- {
- DBUG_PRINT("info",("Hit by signal %d",sig));
- #ifdef DONT_REMEMBER_SIGNAL
- (void) signal(SIGPIPE,pipe_sig_handler);
- #endif
- }
- /**************************************************************************
- ** Shut down connection
- **************************************************************************/
- static void
- end_server(MYSQL *mysql)
- {
- DBUG_ENTER("end_server");
- if (mysql->net.vio != 0)
- {
- init_sigpipe_variables
- DBUG_PRINT("info",("Net: %s", vio_description(mysql->net.vio)));
- set_sigpipe(mysql);
- vio_delete(mysql->net.vio);
- reset_sigpipe(mysql);
- mysql->net.vio= 0; /* Marker */
- }
- net_end(&mysql->net);
- free_old_query(mysql);
- DBUG_VOID_RETURN;
- }
- void STDCALL
- mysql_free_result(MYSQL_RES *result)
- {
- DBUG_ENTER("mysql_free_result");
- DBUG_PRINT("enter",("mysql_res: %lx",result));
- if (result)
- {
- if (result->handle && result->handle->status == MYSQL_STATUS_USE_RESULT)
- {
- DBUG_PRINT("warning",("Not all rows in set were read; Ignoring rows"));
- for (;;)
- {
- uint pkt_len;
- if ((pkt_len=(uint) net_safe_read(result->handle)) == packet_error)
- break;
- if (pkt_len == 1 && result->handle->net.read_pos[0] == 254)
- break; /* End of data */
- }
- result->handle->status=MYSQL_STATUS_READY;
- }
- free_rows(result->data);
- if (result->fields)
- free_root(&result->field_alloc,MYF(0));
- if (result->row)
- my_free((gptr) result->row,MYF(0));
- my_free((gptr) result,MYF(0));
- }
- DBUG_VOID_RETURN;
- }
- /****************************************************************************
- ** Get options from my.cnf
- ****************************************************************************/
- static const char *default_options[]=
- {"port","socket","compress","password","pipe", "timeout", "user",
- "init-command", "host", "database", "debug", "return-found-rows",
- "ssl-key" ,"ssl-cert" ,"ssl-ca" ,"ssl-capath",
- "character-set-dir", "default-character-set", "interactive-timeout",
- "connect_timeout",
- NullS
- };
- static TYPELIB option_types={array_elements(default_options)-1,
- "options",default_options};
- static void mysql_read_default_options(struct st_mysql_options *options,
- const char *filename,const char *group)
- {
- int argc;
- char *argv_buff[1],**argv;
- const char *groups[3];
- DBUG_ENTER("mysql_read_default_options");
- DBUG_PRINT("enter",("file: %s group: %s",filename,group ? group :"NULL"));
- argc=1; argv=argv_buff; argv_buff[0]= (char*) "client";
- groups[0]= (char*) "client"; groups[1]= (char*) group; groups[2]=0;
- load_defaults(filename, groups, &argc, &argv);
- if (argc != 1) /* If some default option */
- {
- char **option=argv;
- while (*++option)
- {
- /* DBUG_PRINT("info",("option: %s",option[0])); */
- if (option[0][0] == '-' && option[0][1] == '-')
- {
- char *end=strcend(*option,'=');
- char *opt_arg=0;
- if (*end)
- {
- opt_arg=end+1;
- *end=0; /* Remove '=' */
- }
- switch (find_type(*option+2,&option_types,2)) {
- case 1: /* port */
- if (opt_arg)
- options->port=atoi(opt_arg);
- break;
- case 2: /* socket */
- if (opt_arg)
- {
- my_free(options->unix_socket,MYF(MY_ALLOW_ZERO_PTR));
- options->unix_socket=my_strdup(opt_arg,MYF(MY_WME));
- }
- break;
- case 3: /* compress */
- options->compress=1;
- break;
- case 4: /* password */
- if (opt_arg)
- {
- my_free(options->password,MYF(MY_ALLOW_ZERO_PTR));
- options->password=my_strdup(opt_arg,MYF(MY_WME));
- }
- break;
- case 5: /* pipe */
- options->named_pipe=1; /* Force named pipe */
- break;
- case 20: /* connect_timeout */
- case 6: /* timeout */
- if (opt_arg)
- options->connect_timeout=atoi(opt_arg);
- break;
- case 7: /* user */
- if (opt_arg)
- {
- my_free(options->user,MYF(MY_ALLOW_ZERO_PTR));
- options->user=my_strdup(opt_arg,MYF(MY_WME));
- }
- break;
- case 8: /* init-command */
- if (opt_arg)
- {
- my_free(options->init_command,MYF(MY_ALLOW_ZERO_PTR));
- options->init_command=my_strdup(opt_arg,MYF(MY_WME));
- }
- break;
- case 9: /* host */
- if (opt_arg)
- {
- my_free(options->host,MYF(MY_ALLOW_ZERO_PTR));
- options->host=my_strdup(opt_arg,MYF(MY_WME));
- }
- break;
- case 10: /* database */
- if (opt_arg)
- {
- my_free(options->db,MYF(MY_ALLOW_ZERO_PTR));
- options->db=my_strdup(opt_arg,MYF(MY_WME));
- }
- break;
- case 11: /* debug */
- mysql_debug(opt_arg ? opt_arg : "d:t:o,/tmp/client.trace");
- break;
- case 12: /* return-found-rows */
- options->client_flag|=CLIENT_FOUND_ROWS;
- break;
- #ifdef HAVE_OPENSSL
- case 13: /* ssl_key */
- my_free(options->ssl_key, MYF(MY_ALLOW_ZERO_PTR));
- options->ssl_key = my_strdup(opt_arg, MYF(MY_WME));
- break;
- case 14: /* ssl_cert */
- my_free(options->ssl_cert, MYF(MY_ALLOW_ZERO_PTR));
- options->ssl_cert = my_strdup(opt_arg, MYF(MY_WME));
- break;
- case 15: /* ssl_ca */
- my_free(options->ssl_ca, MYF(MY_ALLOW_ZERO_PTR));
- options->ssl_ca = my_strdup(opt_arg, MYF(MY_WME));
- break;
- case 16: /* ssl_capath */
- my_free(options->ssl_capath, MYF(MY_ALLOW_ZERO_PTR));
- options->ssl_capath = my_strdup(opt_arg, MYF(MY_WME));
- break;
- #else
- case 13: /* Ignore SSL options */
- case 14:
- case 15:
- case 16:
- break;
- #endif /* HAVE_OPENSSL */
- case 17: /* charset-lib */
- my_free(options->charset_dir,MYF(MY_ALLOW_ZERO_PTR));
- options->charset_dir = my_strdup(opt_arg, MYF(MY_WME));
- break;
- case 18:
- my_free(options->charset_name,MYF(MY_ALLOW_ZERO_PTR));
- options->charset_name = my_strdup(opt_arg, MYF(MY_WME));
- break;
- case 19: /* Interactive-timeout */
- options->client_flag|=CLIENT_INTERACTIVE;
- break;
- default:
- DBUG_PRINT("warning",("unknown option: %s",option[0]));
- }
- }
- }
- }
- free_defaults(argv);
- DBUG_VOID_RETURN;
- }
- /***************************************************************************
- ** Change field rows to field structs
- ***************************************************************************/
- static MYSQL_FIELD *
- unpack_fields(MYSQL_DATA *data,MEM_ROOT *alloc,uint fields,
- my_bool default_value, my_bool long_flag_protocol)
- {
- MYSQL_ROWS *row;
- MYSQL_FIELD *field,*result;
- DBUG_ENTER("unpack_fields");
- field=result=(MYSQL_FIELD*) alloc_root(alloc,sizeof(MYSQL_FIELD)*fields);
- if (!result)
- DBUG_RETURN(0);
- for (row=data->data; row ; row = row->next,field++)
- {
- field->table= strdup_root(alloc,(char*) row->data[0]);
- field->name= strdup_root(alloc,(char*) row->data[1]);
- field->length= (uint) uint3korr(row->data[2]);
- field->type= (enum enum_field_types) (uchar) row->data[3][0];
- if (long_flag_protocol)
- {
- field->flags= uint2korr(row->data[4]);
- field->decimals=(uint) (uchar) row->data[4][2];
- }
- else
- {
- field->flags= (uint) (uchar) row->data[4][0];
- field->decimals=(uint) (uchar) row->data[4][1];
- }
- if (INTERNAL_NUM_FIELD(field))
- field->flags|= NUM_FLAG;
- if (default_value && row->data[5])
- field->def=strdup_root(alloc,(char*) row->data[5]);
- else
- field->def=0;
- field->max_length= 0;
- }
- free_rows(data); /* Free old data */
- DBUG_RETURN(result);
- }
- /* Read all rows (fields or data) from server */
- static MYSQL_DATA *read_rows(MYSQL *mysql,MYSQL_FIELD *mysql_fields,
- uint fields)
- {
- uint field,pkt_len;
- ulong len;
- uchar *cp;
- char *to;
- MYSQL_DATA *result;
- MYSQL_ROWS **prev_ptr,*cur;
- NET *net = &mysql->net;
- DBUG_ENTER("read_rows");
- if ((pkt_len=(uint) net_safe_read(mysql)) == packet_error)
- DBUG_RETURN(0);
- if (!(result=(MYSQL_DATA*) my_malloc(sizeof(MYSQL_DATA),
- MYF(MY_WME | MY_ZEROFILL))))
- {
- net->last_errno=CR_OUT_OF_MEMORY;
- strmov(net->last_error,ER(net->last_errno));
- DBUG_RETURN(0);
- }
- init_alloc_root(&result->alloc,8192,0); /* Assume rowlength < 8192 */
- result->alloc.min_malloc=sizeof(MYSQL_ROWS);
- prev_ptr= &result->data;
- result->rows=0;
- result->fields=fields;
- while (*(cp=net->read_pos) != 254 || pkt_len != 1)
- {
- result->rows++;
- if (!(cur= (MYSQL_ROWS*) alloc_root(&result->alloc,
- sizeof(MYSQL_ROWS))) ||
- !(cur->data= ((MYSQL_ROW)
- alloc_root(&result->alloc,
- (fields+1)*sizeof(char *)+pkt_len))))
- {
- free_rows(result);
- net->last_errno=CR_OUT_OF_MEMORY;
- strmov(net->last_error,ER(net->last_errno));
- DBUG_RETURN(0);
- }
- *prev_ptr=cur;
- prev_ptr= &cur->next;
- to= (char*) (cur->data+fields+1);
- for (field=0 ; field < fields ; field++)
- {
- if ((len=(ulong) net_field_length(&cp)) == NULL_LENGTH)
- { /* null field */
- cur->data[field] = 0;
- }
- else
- {
- cur->data[field] = to;
- memcpy(to,(char*) cp,len); to[len]=0;
- to+=len+1;
- cp+=len;
- if (mysql_fields)
- {
- if (mysql_fields[field].max_length < len)
- mysql_fields[field].max_length=len;
- }
- }
- }
- cur->data[field]=to; /* End of last field */
- if ((pkt_len=net_safe_read(mysql)) == packet_error)
- {
- free_rows(result);
- DBUG_RETURN(0);
- }
- }
- *prev_ptr=0; /* last pointer is null */
- DBUG_PRINT("exit",("Got %d rows",result->rows));
- DBUG_RETURN(result);
- }
- /*
- ** Read one row. Uses packet buffer as storage for fields.
- ** When next packet is read, the previous field values are destroyed
- */
- static int
- read_one_row(MYSQL *mysql,uint fields,MYSQL_ROW row, ulong *lengths)
- {
- uint field;
- ulong pkt_len,len;
- uchar *pos,*prev_pos;
- if ((pkt_len=(uint) net_safe_read(mysql)) == packet_error)
- return -1;
- if (pkt_len == 1 && mysql->net.read_pos[0] == 254)
- return 1; /* End of data */
- prev_pos= 0; /* allowed to write at packet[-1] */
- pos=mysql->net.read_pos;
- for (field=0 ; field < fields ; field++)
- {
- if ((len=(ulong) net_field_length(&pos)) == NULL_LENGTH)
- { /* null field */
- row[field] = 0;
- *lengths++=0;
- }
- else
- {
- row[field] = (char*) pos;
- pos+=len;
- *lengths++=len;
- }
- if (prev_pos)
- *prev_pos=0; /* Terminate prev field */
- prev_pos=pos;
- }
- row[field]=(char*) prev_pos+1; /* End of last field */
- *prev_pos=0; /* Terminate last field */
- return 0;
- }
- /****************************************************************************
- ** Init MySQL structure or allocate one
- ****************************************************************************/
- MYSQL * STDCALL
- mysql_init(MYSQL *mysql)
- {
- mysql_once_init();
- if (!mysql)
- {
- if (!(mysql=(MYSQL*) my_malloc(sizeof(*mysql),MYF(MY_WME | MY_ZEROFILL))))
- return 0;
- mysql->free_me=1;
- mysql->net.vio = 0;
- }
- else
- bzero((char*) (mysql),sizeof(*(mysql)));
- mysql->options.connect_timeout=CONNECT_TIMEOUT;
- #if defined(SIGPIPE) && defined(THREAD)
- if (!((mysql)->client_flag & CLIENT_IGNORE_SIGPIPE))
- (void) signal(SIGPIPE,pipe_sig_handler);
- #endif
- return mysql;
- }
- static void mysql_once_init()
- {
- if (!mysql_client_init)
- {
- mysql_client_init=1;
- my_init(); /* Will init threads */
- init_client_errs();
- if (!mysql_port)
- {
- mysql_port = MYSQL_PORT;
- #ifndef MSDOS
- {
- struct servent *serv_ptr;
- char *env;
- if ((serv_ptr = getservbyname("mysql", "tcp")))
- mysql_port = (uint) ntohs((ushort) serv_ptr->s_port);
- if ((env = getenv("MYSQL_TCP_PORT")))
- mysql_port =(uint) atoi(env);
- }
- #endif
- }
- if (!mysql_unix_port)
- {
- char *env;
- #ifdef __WIN__
- mysql_unix_port = (char*) MYSQL_NAMEDPIPE;
- #else
- mysql_unix_port = (char*) MYSQL_UNIX_ADDR;
- #endif
- if ((env = getenv("MYSQL_UNIX_PORT")))
- mysql_unix_port = env;
- }
- mysql_debug(NullS);
- #if defined(SIGPIPE) && !defined(THREAD)
- (void) signal(SIGPIPE,SIG_IGN);
- #endif
- }
- #ifdef THREAD
- else
- my_thread_init(); /* Init if new thread */
- #endif
- }
- #ifdef HAVE_OPENSSL
- /**************************************************************************
- ** Fill in SSL part of MYSQL structure and set 'use_ssl' flag.
- ** NB! Errors are not reported until you do mysql_real_connect.
- **************************************************************************/
- int STDCALL
- mysql_ssl_set(MYSQL *mysql, const char *key, const char *cert,
- const char *ca, const char *capath)
- {
- mysql->options.ssl_key = key==0 ? 0 : my_strdup(key,MYF(0));
- mysql->options.ssl_cert = cert==0 ? 0 : my_strdup(cert,MYF(0));
- mysql->options.ssl_ca = ca==0 ? 0 : my_strdup(ca,MYF(0));
- mysql->options.ssl_capath = capath==0 ? 0 : my_strdup(capath,MYF(0));
- mysql->options.use_ssl = true;
- mysql->connector_fd = new_VioSSLConnectorFd(key, cert, ca, capath);
- return 0;
- }
- /**************************************************************************
- **************************************************************************/
- char * STDCALL
- mysql_ssl_cipher(MYSQL *mysql)
- {
- return (char *)mysql->net.vio->cipher_description();
- }
- /**************************************************************************
- ** Free strings in the SSL structure and clear 'use_ssl' flag.
- ** NB! Errors are not reported until you do mysql_real_connect.
- **************************************************************************/
- int STDCALL
- mysql_ssl_clear(MYSQL *mysql)
- {
- my_free(mysql->options.ssl_key, MYF(MY_ALLOW_ZERO_PTR));
- my_free(mysql->options.ssl_cert, MYF(MY_ALLOW_ZERO_PTR));
- my_free(mysql->options.ssl_ca, MYF(MY_ALLOW_ZERO_PTR));
- my_free(mysql->options.ssl_capath, MYF(MY_ALLOW_ZERO_PTR));
- mysql->options.ssl_key = 0;
- mysql->options.ssl_cert = 0;
- mysql->options.ssl_ca = 0;
- mysql->options.ssl_capath = 0;
- mysql->options.use_ssl = false;
- mysql->connector_fd->delete();
- mysql->connector_fd = 0;
- return 0;
- }
- #endif /* HAVE_OPENSSL */
- /**************************************************************************
- ** Connect to sql server
- ** If host == 0 then use localhost
- **************************************************************************/
- MYSQL * STDCALL
- mysql_connect(MYSQL *mysql,const char *host,
- const char *user, const char *passwd)
- {
- MYSQL *res;
- mysql=mysql_init(mysql); /* Make it thread safe */
- {
- DBUG_ENTER("mysql_connect");
- if (!(res=mysql_real_connect(mysql,host,user,passwd,NullS,0,NullS,0)))
- {
- if (mysql->free_me)
- my_free((gptr) mysql,MYF(0));
- }
- DBUG_RETURN(res);
- }
- }
- /*
- ** Note that the mysql argument must be initialized with mysql_init()
- ** before calling mysql_real_connect !
- */
- MYSQL * STDCALL
- mysql_real_connect(MYSQL *mysql,const char *host, const char *user,
- const char *passwd, const char *db,
- uint port, const char *unix_socket,uint client_flag)
- {
- char buff[NAME_LEN+USERNAME_LENGTH+100],charset_name_buff[16];
- char *end,*host_info,*charset_name;
- my_socket sock;
- uint32 ip_addr;
- struct sockaddr_in sock_addr;
- uint pkt_length;
- NET *net= &mysql->net;
- #ifdef __WIN__
- HANDLE hPipe=INVALID_HANDLE_VALUE;
- #endif
- #ifdef HAVE_SYS_UN_H
- struct sockaddr_un UNIXaddr;
- #endif
- init_sigpipe_variables
- DBUG_ENTER("mysql_real_connect");
- DBUG_PRINT("enter",("host: %s db: %s user: %s",
- host ? host : "(Null)",
- db ? db : "(Null)",
- user ? user : "(Null)"));
- /* Don't give sigpipe errors if the client doesn't want them */
- set_sigpipe(mysql);
- net->vio = 0; /* If something goes wrong */
- /* use default options */
- if (mysql->options.my_cnf_file || mysql->options.my_cnf_group)
- {
- mysql_read_default_options(&mysql->options,
- (mysql->options.my_cnf_file ?
- mysql->options.my_cnf_file : "my"),
- mysql->options.my_cnf_group);
- my_free(mysql->options.my_cnf_file,MYF(MY_ALLOW_ZERO_PTR));
- my_free(mysql->options.my_cnf_group,MYF(MY_ALLOW_ZERO_PTR));
- mysql->options.my_cnf_file=mysql->options.my_cnf_group=0;
- }
- /* Some empty-string-tests are done because of ODBC */
- if (!host || !host[0])
- host=mysql->options.host;
- if (!user || !user[0])
- user=mysql->options.user;
- if (!passwd)
- {
- passwd=mysql->options.password;
- #ifndef DONT_USE_MYSQL_PWD
- if (!passwd)
- passwd=getenv("MYSQL_PWD"); /* get it from environment (haneke) */
- #endif
- }
- if (!db || !db[0])
- db=mysql->options.db;
- if (!port)
- port=mysql->options.port;
- if (!unix_socket)
- unix_socket=mysql->options.unix_socket;
- mysql->reconnect=1; /* Reconnect as default */
- mysql->server_status=SERVER_STATUS_AUTOCOMMIT;
- /*
- ** Grab a socket and connect it to the server
- */
- #if defined(HAVE_SYS_UN_H)
- if ((!host || !strcmp(host,LOCAL_HOST)) && (unix_socket || mysql_unix_port))
- {
- host=LOCAL_HOST;
- if (!unix_socket)
- unix_socket=mysql_unix_port;
- host_info=(char*) ER(CR_LOCALHOST_CONNECTION);
- DBUG_PRINT("info",("Using UNIX sock '%s'",unix_socket));
- if ((sock = socket(AF_UNIX,SOCK_STREAM,0)) == SOCKET_ERROR)
- {
- net->last_errno=CR_SOCKET_CREATE_ERROR;
- sprintf(net->last_error,ER(net->last_errno),ERRNO);
- goto error;
- }
- net->vio = vio_new(sock, VIO_TYPE_SOCKET, TRUE);
- bzero((char*) &UNIXaddr,sizeof(UNIXaddr));
- UNIXaddr.sun_family = AF_UNIX;
- strmov(UNIXaddr.sun_path, unix_socket);
- if (connect2(sock,(struct sockaddr *) &UNIXaddr, sizeof(UNIXaddr),
- mysql->options.connect_timeout) <0)
- {
- DBUG_PRINT("error",("Got error %d on connect to local server",ERRNO));
- net->last_errno=CR_CONNECTION_ERROR;
- sprintf(net->last_error,ER(net->last_errno),unix_socket,ERRNO);
- goto error;
- }
- }
- else
- #elif defined(__WIN__)
- {
- if ((unix_socket ||
- !host && is_NT() ||
- host && !strcmp(host,LOCAL_HOST_NAMEDPIPE) ||
- mysql->options.named_pipe || !have_tcpip))
- {
- sock=0;
- if ((hPipe=create_named_pipe(net, mysql->options.connect_timeout,
- (char**) &host, (char**) &unix_socket)) ==
- INVALID_HANDLE_VALUE)
- {
- DBUG_PRINT("error",
- ("host: '%s' socket: '%s' named_pipe: %d have_tcpip: %d",
- host ? host : "<null>",
- unix_socket ? unix_socket : "<null>",
- (int) mysql->options.named_pipe,
- (int) have_tcpip));
- if (mysql->options.named_pipe ||
- (host && !strcmp(host,LOCAL_HOST_NAMEDPIPE)) ||
- (unix_socket && !strcmp(unix_socket,MYSQL_NAMEDPIPE)))
- goto error; /* User only requested named pipes */
- /* Try also with TCP/IP */
- }
- else
- {
- net->vio=vio_new_win32pipe(hPipe);
- sprintf(host_info=buff, ER(CR_NAMEDPIPE_CONNECTION), host,
- unix_socket);
- }
- }
- }
- if (hPipe == INVALID_HANDLE_VALUE)
- #endif
- {
- unix_socket=0; /* This is not used */
- if (!port)
- port=mysql_port;
- if (!host)
- host=LOCAL_HOST;
- sprintf(host_info=buff,ER(CR_TCP_CONNECTION),host);
- DBUG_PRINT("info",("Server name: '%s'. TCP sock: %d", host,port));
- /* _WIN64 ; Assume that the (int) range is enough for socket() */
- if ((sock = (my_socket) socket(AF_INET,SOCK_STREAM,0)) == SOCKET_ERROR)
- {
- net->last_errno=CR_IPSOCK_ERROR;
- sprintf(net->last_error,ER(net->last_errno),ERRNO);
- goto error;
- }
- net->vio = vio_new(sock,VIO_TYPE_TCPIP,FALSE);
- bzero((char*) &sock_addr,sizeof(sock_addr));
- sock_addr.sin_family = AF_INET;
- /*
- ** The server name may be a host name or IP address
- */
- if ((int) (ip_addr = inet_addr(host)) != (int) INADDR_NONE)
- {
- memcpy_fixed(&sock_addr.sin_addr,&ip_addr,sizeof(ip_addr));
- }
- else
- #if defined(HAVE_GETHOSTBYNAME_R) && defined(_REENTRANT) && defined(THREAD)
- {
- int tmp_errno;
- struct hostent tmp_hostent,*hp;
- char buff2[GETHOSTBYNAME_BUFF_SIZE];
- hp = my_gethostbyname_r(host,&tmp_hostent,buff2,sizeof(buff2),
- &tmp_errno);
- if (!hp)
- {
- net->last_errno=CR_UNKNOWN_HOST;
- sprintf(net->last_error, ER(CR_UNKNOWN_HOST), host, tmp_errno);
- goto error;
- }
- memcpy(&sock_addr.sin_addr,hp->h_addr, (size_t) hp->h_length);
- }
- #else
- {
- struct hostent *hp;
- if (!(hp=gethostbyname(host)))
- {
- net->last_errno=CR_UNKNOWN_HOST;
- sprintf(net->last_error, ER(CR_UNKNOWN_HOST), host, errno);
- goto error;
- }
- memcpy(&sock_addr.sin_addr,hp->h_addr, (size_t) hp->h_length);
- }
- #endif
- sock_addr.sin_port = (ushort) htons((ushort) port);
- if (connect2(sock,(struct sockaddr *) &sock_addr, sizeof(sock_addr),
- mysql->options.connect_timeout) <0)
- {
- DBUG_PRINT("error",("Got error %d on connect to '%s'",ERRNO,host));
- net->last_errno= CR_CONN_HOST_ERROR;
- sprintf(net->last_error ,ER(CR_CONN_HOST_ERROR), host, ERRNO);
- goto error;
- }
- }
- if (!net->vio || my_net_init(net, net->vio))
- {
- vio_delete(net->vio);
- net->vio = 0;
- net->last_errno=CR_OUT_OF_MEMORY;
- strmov(net->last_error,ER(net->last_errno));
- goto error;
- }
- vio_keepalive(net->vio,TRUE);
- /* Get version info */
- mysql->protocol_version= PROTOCOL_VERSION; /* Assume this */
- if (mysql->options.connect_timeout &&
- vio_poll_read(net->vio, mysql->options.connect_timeout))
- {
- net->last_errno= CR_SERVER_LOST;
- strmov(net->last_error,ER(net->last_errno));
- goto error;
- }
- if ((pkt_length=net_safe_read(mysql)) == packet_error)
- goto error;
- /* Check if version of protocoll matches current one */
- mysql->protocol_version= net->read_pos[0];
- DBUG_DUMP("packet",(char*) net->read_pos,10);
- DBUG_PRINT("info",("mysql protocol version %d, server=%d",
- PROTOCOL_VERSION, mysql->protocol_version));
- if (mysql->protocol_version != PROTOCOL_VERSION &&
- mysql->protocol_version != PROTOCOL_VERSION-1)
- {
- net->last_errno= CR_VERSION_ERROR;
- sprintf(net->last_error, ER(CR_VERSION_ERROR), mysql->protocol_version,
- PROTOCOL_VERSION);
- goto error;
- }
- end=strend((char*) net->read_pos+1);
- mysql->thread_id=uint4korr(end+1);
- end+=5;
- strmake(mysql->scramble_buff,end,8);
- end+=9;
- if (pkt_length >= (uint) (end+1 - (char*) net->read_pos))
- mysql->server_capabilities=uint2korr(end);
- if (pkt_length >= (uint) (end+18 - (char*) net->read_pos))
- {
- /* New protocol with 16 bytes to describe server characteristics */
- mysql->server_language=end[2];
- mysql->server_status=uint2korr(end+3);
- }
- /* Set character set */
- if ((charset_name=mysql->options.charset_name))
- {
- const char *save=charsets_dir;
- if (mysql->options.charset_dir)
- charsets_dir=mysql->options.charset_dir;
- mysql->charset=get_charset_by_name(mysql->options.charset_name,
- MYF(MY_WME));
- charsets_dir=save;
- }
- else if (mysql->server_language)
- {
- charset_name=charset_name_buff;
- sprintf(charset_name,"%d",mysql->server_language); /* In case of errors */
- if (!(mysql->charset =
- get_charset((uint8) mysql->server_language, MYF(MY_WME))))
- mysql->charset = default_charset_info; /* shouldn't be fatal */
- }
- else
- mysql->charset=default_charset_info;
- if (!mysql->charset)
- {
- net->last_errno=CR_CANT_READ_CHARSET;
- if (mysql->options.charset_dir)
- sprintf(net->last_error,ER(net->last_errno),
- charset_name ? charset_name : "unknown",
- mysql->options.charset_dir);
- else
- {
- char cs_dir_name[FN_REFLEN];
- get_charsets_dir(cs_dir_name);
- sprintf(net->last_error,ER(net->last_errno),
- charset_name ? charset_name : "unknown",
- cs_dir_name);
- }
- goto error;
- }
- /* Save connection information */
- if (!user) user="";
- if (!passwd) passwd="";
- if (!my_multi_malloc(MYF(0),
- &mysql->host_info, (uint) strlen(host_info)+1,
- &mysql->host, (uint) strlen(host)+1,
- &mysql->unix_socket,unix_socket ?
- (uint) strlen(unix_socket)+1 : (uint) 1,
- &mysql->server_version,
- (uint) (end - (char*) net->read_pos),
- NullS) ||
- !(mysql->user=my_strdup(user,MYF(0))) ||
- !(mysql->passwd=my_strdup(passwd,MYF(0))))
- {
- strmov(net->last_error, ER(net->last_errno=CR_OUT_OF_MEMORY));
- goto error;
- }
- strmov(mysql->host_info,host_info);
- strmov(mysql->host,host);
- if (unix_socket)
- strmov(mysql->unix_socket,unix_socket);
- else
- mysql->unix_socket=0;
- strmov(mysql->server_version,(char*) net->read_pos+1);
- mysql->port=port;
- client_flag|=mysql->options.client_flag;
- /* Send client information for access check */
- client_flag|=CLIENT_CAPABILITIES;
- #ifdef HAVE_OPENSSL
- if (mysql->options.use_ssl)
- client_flag|=CLIENT_SSL;
- #endif /* HAVE_OPENSSL */
- if (db)
- client_flag|=CLIENT_CONNECT_WITH_DB;
- #ifdef HAVE_COMPRESS
- if ((mysql->server_capabilities & CLIENT_COMPRESS) &&
- (mysql->options.compress || (client_flag & CLIENT_COMPRESS)))
- client_flag|=CLIENT_COMPRESS; /* We will use compression */
- else
- #endif
- client_flag&= ~CLIENT_COMPRESS;
- #ifdef HAVE_OPENSSL
- if ((mysql->server_capabilities & CLIENT_SSL) &&
- (mysql->options.use_ssl || (client_flag & CLIENT_SSL)))
- {
- DBUG_PRINT("info", ("Changing IO layer to SSL"));
- client_flag |= CLIENT_SSL;
- }
- else
- {
- if (client_flag & CLIENT_SSL)
- {
- DBUG_PRINT("info", ("Leaving IO layer intact because server doesn't support SSL"));
- }
- client_flag &= ~CLIENT_SSL;
- }
- #endif /* HAVE_OPENSSL */
- int2store(buff,client_flag);
- mysql->client_flag=client_flag;
- #ifdef HAVE_OPENSSL
- /* Oops.. are we careful enough to not send ANY information */
- /* without encryption? */
- if (client_flag & CLIENT_SSL)
- {
- if (my_net_write(net,buff,(uint) (2)) || net_flush(net))
- goto error;
- /* Do the SSL layering. */
- DBUG_PRINT("info", ("IO layer change in progress..."));
- VioSSLConnectorFd* connector_fd = (VioSSLConnectorFd*)
- (mysql->connector_fd);
- VioSocket* vio_socket = (VioSocket*)(mysql->net.vio);
- VioSSL* vio_ssl = connector_fd->connect(vio_socket);
- mysql->net.vio = (NetVio*)(vio_ssl);
- }
- #endif /* HAVE_OPENSSL */
- DBUG_PRINT("info",("Server version = '%s' capabilites: %ld status: %d client_flag: %d",
- mysql->server_version,mysql->server_capabilities,
- mysql->server_status, client_flag));
- int3store(buff+2,max_allowed_packet);
- if (user && user[0])
- strmake(buff+5,user,32); /* Max user name */
- else
- read_user_name((char*) buff+5);
- #ifdef _CUSTOMCONFIG_
- #include "_cust_libmysql.h";
- #endif
- DBUG_PRINT("info",("user: %s",buff+5));
- end=scramble(strend(buff+5)+1, mysql->scramble_buff, passwd,
- (my_bool) (mysql->protocol_version == 9));
- if (db && (mysql->server_capabilities & CLIENT_CONNECT_WITH_DB))
- {
- end=strmake(end+1,db,NAME_LEN);
- mysql->db=my_strdup(db,MYF(MY_WME));
- db=0;
- }
- if (my_net_write(net,buff,(uint) (end-buff)) || net_flush(net) ||
- net_safe_read(mysql) == packet_error)
- goto error;
- if (client_flag & CLIENT_COMPRESS) /* We will use compression */
- net->compress=1;
- if (db && mysql_select_db(mysql,db))
- goto error;
- if (mysql->options.init_command)
- {
- my_bool reconnect=mysql->reconnect;
- mysql->reconnect=0;
- if (mysql_query(mysql,mysql->options.init_command))
- goto error;
- mysql_free_result(mysql_use_result(mysql));
- mysql->reconnect=reconnect;
- }
- DBUG_PRINT("exit",("Mysql handler: %lx",mysql));
- reset_sigpipe(mysql);
- DBUG_RETURN(mysql);
- error:
- reset_sigpipe(mysql);
- DBUG_PRINT("error",("message: %u (%s)",net->last_errno,net->last_error));
- {
- /* Free alloced memory */
- my_bool free_me=mysql->free_me;
- end_server(mysql);
- mysql->free_me=0;
- mysql_close(mysql);
- mysql->free_me=free_me;
- }
- DBUG_RETURN(0);
- }
- static my_bool mysql_reconnect(MYSQL *mysql)
- {
- MYSQL tmp_mysql;
- DBUG_ENTER("mysql_reconnect");
- if (!mysql->reconnect ||
- (mysql->server_status & SERVER_STATUS_IN_TRANS) || !mysql->host_info)
- {
- /* Allov reconnect next time */
- mysql->server_status&= ~SERVER_STATUS_IN_TRANS;
- DBUG_RETURN(1);
- }
- mysql_init(&tmp_mysql);
- tmp_mysql.options=mysql->options;
- if (!mysql_real_connect(&tmp_mysql,mysql->host,mysql->user,mysql->passwd,
- mysql->db, mysql->port, mysql->unix_socket,
- mysql->client_flag))
- DBUG_RETURN(1);
- tmp_mysql.free_me=mysql->free_me;
- mysql->free_me=0;
- bzero((char*) &mysql->options,sizeof(mysql->options));
- mysql_close(mysql);
- *mysql=tmp_mysql;
- net_clear(&mysql->net);
- mysql->affected_rows= ~(my_ulonglong) 0;
- DBUG_RETURN(0);
- }
- /**************************************************************************
- ** Change user and database
- **************************************************************************/
- my_bool STDCALL mysql_change_user(MYSQL *mysql, const char *user,
- const char *passwd, const char *db)
- {
- char buff[512],*pos=buff;
- DBUG_ENTER("mysql_change_user");
- if (!user)
- user="";
- if (!passwd)
- passwd="";
- pos=strmov(pos,user)+1;
- pos=scramble(pos, mysql->scramble_buff, passwd,
- (my_bool) (mysql->protocol_version == 9));
- pos=strmov(pos+1,db ? db : "");
- if (simple_command(mysql,COM_CHANGE_USER, buff,(uint) (pos-buff),0))
- DBUG_RETURN(1);
- my_free(mysql->user,MYF(MY_ALLOW_ZERO_PTR));
- my_free(mysql->passwd,MYF(MY_ALLOW_ZERO_PTR));
- my_free(mysql->db,MYF(MY_ALLOW_ZERO_PTR));
- mysql->user= my_strdup(user,MYF(MY_WME));
- mysql->passwd=my_strdup(passwd,MYF(MY_WME));
- mysql->db= db ? my_strdup(db,MYF(MY_WME)) : 0;
- DBUG_RETURN(0);
- }
- /**************************************************************************
- ** Set current database
- **************************************************************************/
- int STDCALL
- mysql_select_db(MYSQL *mysql, const char *db)
- {
- int error;
- DBUG_ENTER("mysql_select_db");
- DBUG_PRINT("enter",("db: '%s'",db));
- if ((error=simple_command(mysql,COM_INIT_DB,db,(uint) strlen(db),0)))
- DBUG_RETURN(error);
- my_free(mysql->db,MYF(MY_ALLOW_ZERO_PTR));
- mysql->db=my_strdup(db,MYF(MY_WME));
- DBUG_RETURN(0);
- }
- /*************************************************************************
- ** Send a QUIT to the server and close the connection
- ** If handle is alloced by mysql connect free it.
- *************************************************************************/
- void STDCALL
- mysql_close(MYSQL *mysql)
- {
- DBUG_ENTER("mysql_close");
- if (mysql) /* Some simple safety */
- {
- if (mysql->net.vio != 0)
- {
- free_old_query(mysql);
- mysql->status=MYSQL_STATUS_READY; /* Force command */
- simple_command(mysql,COM_QUIT,NullS,0,1);
- end_server(mysql);
- }
- my_free((gptr) mysql->host_info,MYF(MY_ALLOW_ZERO_PTR));
- my_free(mysql->user,MYF(MY_ALLOW_ZERO_PTR));
- my_free(mysql->passwd,MYF(MY_ALLOW_ZERO_PTR));
- my_free(mysql->db,MYF(MY_ALLOW_ZERO_PTR));
- my_free(mysql->options.init_command,MYF(MY_ALLOW_ZERO_PTR));
- my_free(mysql->options.user,MYF(MY_ALLOW_ZERO_PTR));
- my_free(mysql->options.host,MYF(MY_ALLOW_ZERO_PTR));
- my_free(mysql->options.password,MYF(MY_ALLOW_ZERO_PTR));
- my_free(mysql->options.unix_socket,MYF(MY_ALLOW_ZERO_PTR));
- my_free(mysql->options.db,MYF(MY_ALLOW_ZERO_PTR));
- my_free(mysql->options.my_cnf_file,MYF(MY_ALLOW_ZERO_PTR));
- my_free(mysql->options.my_cnf_group,MYF(MY_ALLOW_ZERO_PTR));
- my_free(mysql->options.charset_dir,MYF(MY_ALLOW_ZERO_PTR));
- my_free(mysql->options.charset_name,MYF(MY_ALLOW_ZERO_PTR));
- /* Clear pointers for better safety */
- mysql->host_info=mysql->user=mysql->passwd=mysql->db=0;
- bzero((char*) &mysql->options,sizeof(mysql->options));
- mysql->net.vio = 0;
- #ifdef HAVE_OPENSSL
- ((VioConnectorFd*)(mysql->connector_fd))->delete();
- mysql->connector_fd = 0;
- #endif /* HAVE_OPENSSL */
- if (mysql->free_me)
- my_free((gptr) mysql,MYF(0));
- }
- DBUG_VOID_RETURN;
- }
- /**************************************************************************
- ** Do a query. If query returned rows, free old rows.
- ** Read data by mysql_store_result or by repeat call of mysql_fetch_row
- **************************************************************************/
- int STDCALL
- mysql_query(MYSQL *mysql, const char *query)
- {
- return mysql_real_query(mysql,query, (uint) strlen(query));
- }
- /*
- Send the query and return so we can do something else.
- Needs to be followed by mysql_read_query_result() when we want to
- finish processing it.
- */
- int STDCALL
- mysql_send_query(MYSQL* mysql, const char* query, uint length)
- {
- return simple_command(mysql, COM_QUERY, query, length, 1);
- }
- int STDCALL mysql_read_query_result(MYSQL *mysql)
- {
- uchar *pos;
- ulong field_count;
- MYSQL_DATA *fields;
- uint length;
- DBUG_ENTER("mysql_read_query_result");
- if ((length = net_safe_read(mysql)) == packet_error)
- DBUG_RETURN(-1);
- free_old_query(mysql); /* Free old result */
- get_info:
- pos=(uchar*) mysql->net.read_pos;
- if ((field_count= net_field_length(&pos)) == 0)
- {
- mysql->affected_rows= net_field_length_ll(&pos);
- mysql->insert_id= net_field_length_ll(&pos);
- if (mysql->server_capabilities & CLIENT_TRANSACTIONS)
- {
- mysql->server_status=uint2korr(pos); pos+=2;
- }
- if (pos < mysql->net.read_pos+length && net_field_length(&pos))
- mysql->info=(char*) pos;
- DBUG_RETURN(0);
- }
- if (field_count == NULL_LENGTH) /* LOAD DATA LOCAL INFILE */
- {
- int error=send_file_to_server(mysql,(char*) pos);
- if ((length=net_safe_read(mysql)) == packet_error || error)
- DBUG_RETURN(-1);
- goto get_info; /* Get info packet */
- }
- if (!(mysql->server_status & SERVER_STATUS_AUTOCOMMIT))
- mysql->server_status|= SERVER_STATUS_IN_TRANS;
- mysql->extra_info= net_field_length_ll(&pos); /* Maybe number of rec */
- if (!(fields=read_rows(mysql,(MYSQL_FIELD*) 0,5)))
- DBUG_RETURN(-1);
- if (!(mysql->fields=unpack_fields(fields,&mysql->field_alloc,
- (uint) field_count,0,
- (my_bool) test(mysql->server_capabilities &
- CLIENT_LONG_FLAG))))
- DBUG_RETURN(-1);
- mysql->status=MYSQL_STATUS_GET_RESULT;
- mysql->field_count=field_count;
- DBUG_RETURN(0);
- }
- int STDCALL
- mysql_real_query(MYSQL *mysql, const char *query, uint length)
- {
- DBUG_ENTER("mysql_real_query");
- DBUG_PRINT("enter",("handle: %lx",mysql));
- DBUG_PRINT("query",("Query = "%s"",query));
- if (simple_command(mysql,COM_QUERY,query,length,1))
- DBUG_RETURN(-1);
- DBUG_RETURN(mysql_read_query_result(mysql));
- }
- static int
- send_file_to_server(MYSQL *mysql, const char *filename)
- {
- int fd, readcount;
- char buf[IO_SIZE*15],*tmp_name;
- DBUG_ENTER("send_file_to_server");
- fn_format(buf,filename,"","",4); /* Convert to client format */
- if (!(tmp_name=my_strdup(buf,MYF(0))))
- {
- strmov(mysql->net.last_error, ER(mysql->net.last_errno=CR_OUT_OF_MEMORY));
- DBUG_RETURN(-1);
- }
- if ((fd = my_open(tmp_name,O_RDONLY, MYF(0))) < 0)
- {
- mysql->net.last_errno=EE_FILENOTFOUND;
- sprintf(buf,EE(mysql->net.last_errno),tmp_name,errno);
- strmake(mysql->net.last_error,buf,sizeof(mysql->net.last_error)-1);
- my_net_write(&mysql->net,"",0); net_flush(&mysql->net);
- my_free(tmp_name,MYF(0));
- DBUG_RETURN(-1);
- }
- while ((readcount = (int) my_read(fd,buf,sizeof(buf),MYF(0))) > 0)
- {
- if (my_net_write(&mysql->net,buf,readcount))
- {
- mysql->net.last_errno=CR_SERVER_LOST;
- strmov(mysql->net.last_error,ER(mysql->net.last_errno));
- DBUG_PRINT("error",("Lost connection to MySQL server during LOAD DATA of local file"));
- (void) my_close(fd,MYF(0));
- my_free(tmp_name,MYF(0));
- DBUG_RETURN(-1);
- }
- }
- (void) my_close(fd,MYF(0));
- /* Send empty packet to mark end of file */
- if (my_net_write(&mysql->net,"",0) || net_flush(&mysql->net))
- {
- mysql->net.last_errno=CR_SERVER_LOST;
- sprintf(mysql->net.last_error,ER(mysql->net.last_errno),errno);
- my_free(tmp_name,MYF(0));
- DBUG_RETURN(-1);
- }
- if (readcount < 0)
- {
- mysql->net.last_errno=EE_READ; /* the errmsg for not entire file read */
- sprintf(buf,EE(mysql->net.last_errno),tmp_name,errno);
- strmake(mysql->net.last_error,buf,sizeof(mysql->net.last_error)-1);
- my_free(tmp_name,MYF(0));
- DBUG_RETURN(-1);
- }
- DBUG_RETURN(0);
- }
- /**************************************************************************
- ** Alloc result struct for buffered results. All rows are read to buffer.
- ** mysql_data_seek may be used.
- **************************************************************************/
- MYSQL_RES * STDCALL
- mysql_store_result(MYSQL *mysql)
- {
- MYSQL_RES *result;
- DBUG_ENTER("mysql_store_result");
- if (!mysql->fields)
- DBUG_RETURN(0);
- if (mysql->status != MYSQL_STATUS_GET_RESULT)
- {
- strmov(mysql->net.last_error,
- ER(mysql->net.last_errno=CR_COMMANDS_OUT_OF_SYNC));
- DBUG_RETURN(0);
- }
- mysql->status=MYSQL_STATUS_READY; /* server is ready */
- if (!(result=(MYSQL_RES*) my_malloc(sizeof(MYSQL_RES)+
- sizeof(ulong)*mysql->field_count,
- MYF(MY_WME | MY_ZEROFILL))))
- {
- mysql->net.last_errno=CR_OUT_OF_MEMORY;
- strmov(mysql->net.last_error, ER(mysql->net.last_errno));
- DBUG_RETURN(0);
- }
- result->eof=1; /* Marker for buffered */
- result->lengths=(ulong*) (result+1);
- if (!(result->data=read_rows(mysql,mysql->fields,mysql->field_count)))
- {
- my_free((gptr) result,MYF(0));
- DBUG_RETURN(0);
- }
- mysql->affected_rows= result->row_count= result->data->rows;
- result->data_cursor= result->data->data;
- result->fields= mysql->fields;
- result->field_alloc= mysql->field_alloc;
- result->field_count= mysql->field_count;
- result->current_field=0;
- result->current_row=0; /* Must do a fetch first */
- mysql->fields=0; /* fields is now in result */
- DBUG_RETURN(result); /* Data fetched */
- }
- /**************************************************************************
- ** Alloc struct for use with unbuffered reads. Data is fetched by domand
- ** when calling to mysql_fetch_row.
- ** mysql_data_seek is a noop.
- **
- ** No other queries may be specified with the same MYSQL handle.
- ** There shouldn't be much processing per row because mysql server shouldn't
- ** have to wait for the client (and will not wait more than 30 sec/packet).
- **************************************************************************/
- MYSQL_RES * STDCALL
- mysql_use_result(MYSQL *mysql)
- {
- MYSQL_RES *result;
- DBUG_ENTER("mysql_use_result");
- if (!mysql->fields)
- DBUG_RETURN(0);
- if (mysql->status != MYSQL_STATUS_GET_RESULT)
- {
- strmov(mysql->net.last_error,
- ER(mysql->net.last_errno=CR_COMMANDS_OUT_OF_SYNC));
- DBUG_RETURN(0);
- }
- if (!(result=(MYSQL_RES*) my_malloc(sizeof(*result)+
- sizeof(ulong)*mysql->field_count,
- MYF(MY_WME | MY_ZEROFILL))))
- DBUG_RETURN(0);
- result->lengths=(ulong*) (result+1);
- if (!(result->row=(MYSQL_ROW)
- my_malloc(sizeof(result->row[0])*(mysql->field_count+1), MYF(MY_WME))))
- { /* Ptrs: to one row */
- my_free((gptr) result,MYF(0));
- DBUG_RETURN(0);
- }
- result->fields= mysql->fields;
- result->field_alloc= mysql->field_alloc;
- result->field_count= mysql->field_count;
- result->current_field=0;
- result->handle= mysql;
- result->current_row= 0;
- mysql->fields=0; /* fields is now in result */
- mysql->status=MYSQL_STATUS_USE_RESULT;
- DBUG_RETURN(result); /* Data is read to be fetched */
- }
- /**************************************************************************
- ** Return next field of the query results
- **************************************************************************/
- MYSQL_FIELD * STDCALL
- mysql_fetch_field(MYSQL_RES *result)
- {
- if (result->current_field >= result->field_count)
- return(NULL);
- return &result->fields[result->current_field++];
- }
- /**************************************************************************
- ** Return next row of the query results
- **************************************************************************/
- MYSQL_ROW STDCALL
- mysql_fetch_row(MYSQL_RES *res)
- {
- DBUG_ENTER("mysql_fetch_row");
- if (!res->data)
- { /* Unbufferred fetch */
- if (!res->eof)
- {
- if (!(read_one_row(res->handle,res->field_count,res->row, res->lengths)))
- {
- res->row_count++;
- DBUG_RETURN(res->current_row=res->row);
- }
- else
- {
- DBUG_PRINT("info",("end of data"));
- res->eof=1;
- res->handle->status=MYSQL_STATUS_READY;
- }
- }
- DBUG_RETURN((MYSQL_ROW) NULL);
- }
- {
- MYSQL_ROW tmp;
- if (!res->data_cursor)
- {
- DBUG_PRINT("info",("end of data"));
- DBUG_RETURN(res->current_row=(MYSQL_ROW) NULL);
- }
- tmp = res->data_cursor->data;
- res->data_cursor = res->data_cursor->next;
- DBUG_RETURN(res->current_row=tmp);
- }
- }
- /**************************************************************************
- ** Get column lengths of the current row
- ** If one uses mysql_use_result, res->lengths contains the length information,
- ** else the lengths are calculated from the offset between pointers.
- **************************************************************************/
- ulong * STDCALL
- mysql_fetch_lengths(MYSQL_RES *res)
- {
- ulong *lengths,*prev_length;
- byte *start;
- MYSQL_ROW column,end;
- if (!(column=res->current_row))
- return 0; /* Something is wrong */
- if (res->data)
- {
- start=0;
- prev_length=0; /* Keep gcc happy */
- lengths=res->lengths;
- for (end=column+res->field_count+1 ; column != end ; column++,lengths++)
- {
- if (!*column)
- {
- *lengths=0; /* Null */
- continue;
- }
- if (start) /* Found end of prev string */
- *prev_length= (uint) (*column-start-1);
- start= *column;
- prev_length=lengths;
- }
- }
- return res->lengths;
- }
- /**************************************************************************
- ** Move to a specific row and column
- **************************************************************************/
- void STDCALL
- mysql_data_seek(MYSQL_RES *result, my_ulonglong row)
- {
- MYSQL_ROWS *tmp=0;
- DBUG_PRINT("info",("mysql_data_seek(%ld)",(long) row));
- if (result->data)
- for (tmp=result->data->data; row-- && tmp ; tmp = tmp->next) ;
- result->current_row=0;
- result->data_cursor = tmp;
- }
- /*************************************************************************
- ** put the row or field cursor one a position one got from mysql_row_tell()
- ** This doesn't restore any data. The next mysql_fetch_row or
- ** mysql_fetch_field will return the next row or field after the last used
- *************************************************************************/
- MYSQL_ROW_OFFSET STDCALL
- mysql_row_seek(MYSQL_RES *result, MYSQL_ROW_OFFSET row)
- {
- MYSQL_ROW_OFFSET return_value=result->data_cursor;
- result->current_row= 0;
- result->data_cursor= row;
- return return_value;
- }
- MYSQL_FIELD_OFFSET STDCALL
- mysql_field_seek(MYSQL_RES *result, MYSQL_FIELD_OFFSET field_offset)
- {
- MYSQL_FIELD_OFFSET return_value=result->current_field;
- result->current_field=field_offset;
- return return_value;
- }
- /*****************************************************************************
- ** List all databases
- *****************************************************************************/
- MYSQL_RES * STDCALL
- mysql_list_dbs(MYSQL *mysql, const char *wild)
- {
- char buff[255];
- DBUG_ENTER("mysql_list_dbs");
- append_wild(strmov(buff,"show databases"),buff+sizeof(buff),wild);
- if (mysql_query(mysql,buff))
- DBUG_RETURN(0);
- DBUG_RETURN (mysql_store_result(mysql));
- }
- /*****************************************************************************
- ** List all tables in a database
- ** If wild is given then only the tables matching wild is returned
- *****************************************************************************/
- MYSQL_RES * STDCALL
- mysql_list_tables(MYSQL *mysql, const char *wild)
- {
- char buff[255];
- DBUG_ENTER("mysql_list_tables");
- append_wild(strmov(buff,"show tables"),buff+sizeof(buff),wild);
- if (mysql_query(mysql,buff))
- DBUG_RETURN(0);
- DBUG_RETURN (mysql_store_result(mysql));
- }
- /**************************************************************************
- ** List all fields in a table
- ** If wild is given then only the fields matching wild is returned
- ** Instead of this use query:
- ** show fields in 'table' like "wild"
- **************************************************************************/
- MYSQL_RES * STDCALL
- mysql_list_fields(MYSQL *mysql, const char *table, const char *wild)
- {
- MYSQL_RES *result;
- MYSQL_DATA *query;
- char buff[257],*end;
- DBUG_ENTER("mysql_list_fields");
- DBUG_PRINT("enter",("table: '%s' wild: '%s'",table,wild ? wild : ""));
- LINT_INIT(query);
- end=strmake(strmake(buff, table,128)+1,wild ? wild : "",128);
- if (simple_command(mysql,COM_FIELD_LIST,buff,(uint) (end-buff),1) ||
- !(query = read_rows(mysql,(MYSQL_FIELD*) 0,6)))
- DBUG_RETURN(NULL);
- free_old_query(mysql);
- if (!(result = (MYSQL_RES *) my_malloc(sizeof(MYSQL_RES),
- MYF(MY_WME | MY_ZEROFILL))))
- {
- free_rows(query);
- DBUG_RETURN(NULL);
- }
- result->field_alloc=mysql->field_alloc;
- mysql->fields=0;
- result->field_count = (uint) query->rows;
- result->fields= unpack_fields(query,&result->field_alloc,
- result->field_count,1,
- (my_bool) test(mysql->server_capabilities &
- CLIENT_LONG_FLAG));
- result->eof=1;
- DBUG_RETURN(result);
- }
- /* List all running processes (threads) in server */
- MYSQL_RES * STDCALL
- mysql_list_processes(MYSQL *mysql)
- {
- MYSQL_DATA *fields;
- uint field_count;
- uchar *pos;
- DBUG_ENTER("mysql_list_processes");
- LINT_INIT(fields);
- if (simple_command(mysql,COM_PROCESS_INFO,0,0,0))
- DBUG_RETURN(0);
- free_old_query(mysql);
- pos=(uchar*) mysql->net.read_pos;
- field_count=(uint) net_field_length(&pos);
- if (!(fields = read_rows(mysql,(MYSQL_FIELD*) 0,5)))
- DBUG_RETURN(NULL);
- if (!(mysql->fields=unpack_fields(fields,&mysql->field_alloc,field_count,0,
- (my_bool) test(mysql->server_capabilities &
- CLIENT_LONG_FLAG))))
- DBUG_RETURN(0);
- mysql->status=MYSQL_STATUS_GET_RESULT;
- mysql->field_count=field_count;
- DBUG_RETURN(mysql_store_result(mysql));
- }
- int STDCALL
- mysql_create_db(MYSQL *mysql, const char *db)
- {
- DBUG_ENTER("mysql_createdb");
- DBUG_PRINT("enter",("db: %s",db));
- DBUG_RETURN(simple_command(mysql,COM_CREATE_DB,db, (uint) strlen(db),0));
- }
- int STDCALL
- mysql_drop_db(MYSQL *mysql, const char *db)
- {
- DBUG_ENTER("mysql_drop_db");
- DBUG_PRINT("enter",("db: %s",db));
- DBUG_RETURN(simple_command(mysql,COM_DROP_DB,db,(uint) strlen(db),0));
- }
- int STDCALL
- mysql_shutdown(MYSQL *mysql)
- {
- DBUG_ENTER("mysql_shutdown");
- DBUG_RETURN(simple_command(mysql,COM_SHUTDOWN,0,0,0));
- }
- int STDCALL
- mysql_refresh(MYSQL *mysql,uint options)
- {
- uchar bits[1];
- DBUG_ENTER("mysql_refresh");
- bits[0]= (uchar) options;
- DBUG_RETURN(simple_command(mysql,COM_REFRESH,(char*) bits,1,0));
- }
- int STDCALL
- mysql_kill(MYSQL *mysql,ulong pid)
- {
- char buff[12];
- DBUG_ENTER("mysql_kill");
- int4store(buff,pid);
- DBUG_RETURN(simple_command(mysql,COM_PROCESS_KILL,buff,4,0));
- }
- int STDCALL
- mysql_dump_debug_info(MYSQL *mysql)
- {
- DBUG_ENTER("mysql_dump_debug_info");
- DBUG_RETURN(simple_command(mysql,COM_DEBUG,0,0,0));
- }
- char * STDCALL
- mysql_stat(MYSQL *mysql)
- {
- DBUG_ENTER("mysql_stat");
- if (simple_command(mysql,COM_STATISTICS,0,0,0))
- return mysql->net.last_error;
- mysql->net.read_pos[mysql->packet_length]=0; /* End of stat string */
- if (!mysql->net.read_pos[0])
- {
- mysql->net.last_errno=CR_WRONG_HOST_INFO;
- strmov(mysql->net.last_error, ER(mysql->net.last_errno));
- return mysql->net.last_error;
- }
- DBUG_RETURN((char*) mysql->net.read_pos);
- }
- int STDCALL
- mysql_ping(MYSQL *mysql)
- {
- DBUG_ENTER("mysql_ping");
- DBUG_RETURN(simple_command(mysql,COM_PING,0,0,0));
- }
- char * STDCALL
- mysql_get_server_info(MYSQL *mysql)
- {
- return((char*) mysql->server_version);
- }
- char * STDCALL
- mysql_get_host_info(MYSQL *mysql)
- {
- return(mysql->host_info);
- }
- uint STDCALL
- mysql_get_proto_info(MYSQL *mysql)
- {
- return (mysql->protocol_version);
- }
- char * STDCALL
- mysql_get_client_info(void)
- {
- return (char*) MYSQL_SERVER_VERSION;
- }
- int STDCALL
- mysql_options(MYSQL *mysql,enum mysql_option option, const char *arg)
- {
- DBUG_ENTER("mysql_option");
- DBUG_PRINT("enter",("option: %d",(int) option));
- switch (option) {
- case MYSQL_OPT_CONNECT_TIMEOUT:
- mysql->options.connect_timeout= *(uint*) arg;
- break;
- case MYSQL_OPT_COMPRESS:
- mysql->options.compress=1; /* Remember for connect */
- break;
- case MYSQL_OPT_NAMED_PIPE:
- mysql->options.named_pipe=1; /* Force named pipe */
- break;
- case MYSQL_INIT_COMMAND:
- my_free(mysql->options.init_command,MYF(MY_ALLOW_ZERO_PTR));
- mysql->options.init_command=my_strdup(arg,MYF(MY_WME));
- break;
- case MYSQL_READ_DEFAULT_FILE:
- my_free(mysql->options.my_cnf_file,MYF(MY_ALLOW_ZERO_PTR));
- mysql->options.my_cnf_file=my_strdup(arg,MYF(MY_WME));
- break;
- case MYSQL_READ_DEFAULT_GROUP:
- my_free(mysql->options.my_cnf_group,MYF(MY_ALLOW_ZERO_PTR));
- mysql->options.my_cnf_group=my_strdup(arg,MYF(MY_WME));
- break;
- case MYSQL_SET_CHARSET_DIR:
- my_free(mysql->options.charset_dir,MYF(MY_ALLOW_ZERO_PTR));
- mysql->options.charset_dir=my_strdup(arg,MYF(MY_WME));
- break;
- case MYSQL_SET_CHARSET_NAME:
- my_free(mysql->options.charset_name,MYF(MY_ALLOW_ZERO_PTR));
- mysql->options.charset_name=my_strdup(arg,MYF(MY_WME));
- break;
- default:
- DBUG_RETURN(-1);
- }
- DBUG_RETURN(0);
- }
- /****************************************************************************
- ** Functions to get information from the MySQL structure
- ** These are functions to make shared libraries more usable.
- ****************************************************************************/
- /* MYSQL_RES */
- my_ulonglong STDCALL mysql_num_rows(MYSQL_RES *res)
- {
- return res->row_count;
- }
- unsigned int STDCALL mysql_num_fields(MYSQL_RES *res)
- {
- return res->field_count;
- }
- my_bool STDCALL mysql_eof(MYSQL_RES *res)
- {
- return res->eof;
- }
- MYSQL_FIELD * STDCALL mysql_fetch_field_direct(MYSQL_RES *res,uint fieldnr)
- {
- return &(res)->fields[fieldnr];
- }
- MYSQL_FIELD * STDCALL mysql_fetch_fields(MYSQL_RES *res)
- {
- return (res)->fields;
- }
- MYSQL_ROWS * STDCALL mysql_row_tell(MYSQL_RES *res)
- {
- return res->data_cursor;
- }
- uint STDCALL mysql_field_tell(MYSQL_RES *res)
- {
- return (res)->current_field;
- }
- /* MYSQL */
- unsigned int STDCALL mysql_field_count(MYSQL *mysql)
- {
- return mysql->field_count;
- }
- my_ulonglong STDCALL mysql_affected_rows(MYSQL *mysql)
- {
- return (mysql)->affected_rows;
- }
- my_ulonglong STDCALL mysql_insert_id(MYSQL *mysql)
- {
- return (mysql)->insert_id;
- }
- uint STDCALL mysql_errno(MYSQL *mysql)
- {
- return (mysql)->net.last_errno;
- }
- char * STDCALL mysql_error(MYSQL *mysql)
- {
- return (mysql)->net.last_error;
- }
- char *STDCALL mysql_info(MYSQL *mysql)
- {
- return (mysql)->info;
- }
- ulong STDCALL mysql_thread_id(MYSQL *mysql)
- {
- return (mysql)->thread_id;
- }
- const char * STDCALL mysql_character_set_name(MYSQL *mysql)
- {
- return mysql->charset->name;
- }
- uint STDCALL mysql_thread_safe(void)
- {
- #ifdef THREAD
- return 1;
- #else
- return 0;
- #endif
- }
- /****************************************************************************
- ** Some support functions
- ****************************************************************************/
- /*
- ** Add escape characters to a string (blob?) to make it suitable for a insert
- ** to should at least have place for length*2+1 chars
- ** Returns the length of the to string
- */
- ulong STDCALL
- mysql_escape_string(char *to,const char *from,ulong length)
- {
- return mysql_sub_escape_string(default_charset_info,to,from,length);
- }
- ulong STDCALL
- mysql_real_escape_string(MYSQL *mysql, char *to,const char *from,
- ulong length)
- {
- return mysql_sub_escape_string(mysql->charset,to,from,length);
- }
- static ulong
- mysql_sub_escape_string(CHARSET_INFO *charset_info, char *to,
- const char *from, ulong length)
- {
- const char *to_start=to;
- const char *end;
- #ifdef USE_MB
- my_bool use_mb_flag=use_mb(charset_info);
- #endif
- for (end=from+length; from != end ; from++)
- {
- #ifdef USE_MB
- int l;
- if (use_mb_flag && (l = my_ismbchar(charset_info, from, end)))
- {
- while (l--)
- *to++ = *from++;
- from--;
- continue;
- }
- #endif
- switch (*from) {
- case 0: /* Must be escaped for 'mysql' */
- *to++= '\';
- *to++= '0';
- break;
- case 'n': /* Must be escaped for logs */
- *to++= '\';
- *to++= 'n';
- break;
- case 'r':
- *to++= '\';
- *to++= 'r';
- break;
- case '\':
- *to++= '\';
- *to++= '\';
- break;
- case ''':
- *to++= '\';
- *to++= ''';
- break;
- case '"': /* Better safe than sorry */
- *to++= '\';
- *to++= '"';
- break;
- case ' 32': /* This gives problems on Win32 */
- *to++= '\';
- *to++= 'Z';
- break;
- default:
- *to++= *from;
- }
- }
- *to=0;
- return (ulong) (to-to_start);
- }
- char * STDCALL
- mysql_odbc_escape_string(MYSQL *mysql,
- char *to, ulong to_length,
- const char *from, ulong from_length,
- void *param,
- char * (*extend_buffer)
- (void *, char *, ulong *))
- {
- char *to_end=to+to_length-5;
- const char *end;
- #ifdef USE_MB
- my_bool use_mb_flag=use_mb(mysql->charset);
- #endif
- for (end=from+from_length; from != end ; from++)
- {
- if (to >= to_end)
- {
- to_length = (ulong) (end-from)+512; /* We want this much more */
- if (!(to=(*extend_buffer)(param, to, &to_length)))
- return to;
- to_end=to+to_length-5;
- }
- #ifdef USE_MB
- {
- int l;
- if (use_mb_flag && (l = my_ismbchar(mysql->charset, from, end)))
- {
- while (l--)
- *to++ = *from++;
- from--;
- continue;
- }
- }
- #endif
- switch (*from) {
- case 0: /* Must be escaped for 'mysql' */
- *to++= '\';
- *to++= '0';
- break;
- case 'n': /* Must be escaped for logs */
- *to++= '\';
- *to++= 'n';
- break;
- case 'r':
- *to++= '\';
- *to++= 'r';
- break;
- case '\':
- *to++= '\';
- *to++= '\';
- break;
- case ''':
- *to++= '\';
- *to++= ''';
- break;
- case '"': /* Better safe than sorry */
- *to++= '\';
- *to++= '"';
- break;
- case ' 32': /* This gives problems on Win32 */
- *to++= '\';
- *to++= 'Z';
- break;
- default:
- *to++= *from;
- }
- }
- return to;
- }
- void STDCALL
- myodbc_remove_escape(MYSQL *mysql,char *name)
- {
- char *to;
- #ifdef USE_MB
- my_bool use_mb_flag=use_mb(mysql->charset);
- char *end;
- LINT_INIT(end);
- if (use_mb_flag)
- for (end=name; *end ; end++) ;
- #endif
- for (to=name ; *name ; name++)
- {
- #ifdef USE_MB
- int l;
- if (use_mb_flag && (l = my_ismbchar( mysql->charset, name , end ) ) )
- {
- while (l--)
- *to++ = *name++;
- name--;
- continue;
- }
- #endif
- if (*name == '\' && name[1])
- name++;
- *to++= *name;
- }
- *to=0;
- }