diff options
author | unknown <hf@deer.mysql.r18.ru> | 2003-05-02 21:07:41 +0500 |
---|---|---|
committer | unknown <hf@deer.mysql.r18.ru> | 2003-05-02 21:07:41 +0500 |
commit | a1e47ce8ee3746a6ecf05d8c4707bea914fa14be (patch) | |
tree | fdde26b1e7037d8e84b46afae68af0c9adc79943 /libmysql | |
parent | 4a506d6e23845bf5d8208da741bd85cdcb0d4270 (diff) | |
download | mariadb-git-a1e47ce8ee3746a6ecf05d8c4707bea914fa14be.tar.gz |
SCRUM
common parts of libmysql.c and sql/mini_client.cc moved to sql-common/client.c
names of functions now are same in both cases
libmysql/libmysql.c:
many parts moved to sql-common/client.c
libmysqld/Makefile.am:
superfluous files removed
sql/mini_client.cc:
most of the file moved to sql-common/client.c
sql/mini_client.h:
mc_ prefixes were deleted
sql/repl_failsafe.cc:
mc_ prefixes removed
sql/slave.cc:
_mc prefixes removed
Diffstat (limited to 'libmysql')
-rw-r--r-- | libmysql/libmysql.c | 2146 |
1 files changed, 3 insertions, 2143 deletions
diff --git a/libmysql/libmysql.c b/libmysql/libmysql.c index 2f64bb3bd44..72a3294347e 100644 --- a/libmysql/libmysql.c +++ b/libmysql/libmysql.c @@ -165,197 +165,14 @@ void STDCALL mysql_thread_end() #define reset_sigpipe(mysql) #endif +#define _libmysql_c +#include "../sql-common/client.c" + static MYSQL* spawn_init(MYSQL* parent, const char* host, unsigned int port, const char* user, const char* passwd); - -/**************************************************************************** - A modified version of connect(). my_connect() 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, - my_connect() will behave exactly like connect(). - - Base version coded by Steve Bernacki, Jr. <steve@navinet.net> -*****************************************************************************/ - -my_bool my_connect(my_socket s, const struct sockaddr *name, - uint namelen, uint timeout) -{ -#if defined(__WIN__) || defined(OS2) || defined(__NETWARE__) - return connect(s, (struct sockaddr*) name, namelen) != 0; -#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) != 0; - - 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 succeed. 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 defined(HPUX10) && defined(THREAD) - if ((res = select(s+1, NULL, (int*) &sfds, NULL, &tv)) > 0) - break; -#else - if ((res = select(s+1, NULL, &sfds, NULL, &tv)) > 0) - break; -#endif - if (res == 0) /* timeout */ - return -1; - 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); /* ok */ - -#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 - - /* Create new shared memory connection, return handler of connection @@ -559,212 +376,6 @@ err: } #endif - -/***************************************************************************** - Read a packet from server. Give error message if socket was down - or packet is an error message -*****************************************************************************/ - -ulong -net_safe_read(MYSQL *mysql) -{ - NET *net= &mysql->net; - ulong 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; - net->last_errno=uint2korr(pos); - pos+=2; - len-=2; - (void) strmake(net->last_error,(char*) pos, - min((uint) len,(uint) 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; -} - -static void free_rows(MYSQL_DATA *cur) -{ - if (cur) - { - free_root(&cur->alloc,MYF(0)); - my_free((gptr) cur,MYF(0)); - } -} - - -static my_bool -advanced_command(MYSQL *mysql, enum enum_server_command command, - const char *header, ulong header_length, - const char *arg, ulong arg_length, my_bool skip_check) -{ - NET *net= &mysql->net; - my_bool 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)) - return 1; - } - if (mysql->status != MYSQL_STATUS_READY) - { - strmov(net->last_error,ER(mysql->net.last_errno=CR_COMMANDS_OUT_OF_SYNC)); - return 1; - } - - mysql->net.last_error[0]=0; - mysql->net.last_errno=0; - mysql->info=0; - mysql->affected_rows= ~(my_ulonglong) 0; - net_clear(&mysql->net); /* Clear receive buffer */ - - if (net_write_command(net,(uchar) command, header, header_length, - arg, arg_length)) - { - DBUG_PRINT("error",("Can't send command to server. Error: %d", - socket_errno)); - if (net->last_errno == ER_NET_PACKET_TOO_LARGE) - { - net->last_errno=CR_NET_PACKET_TOO_LARGE; - strmov(net->last_error,ER(net->last_errno)); - goto end; - } - end_server(mysql); - if (mysql_reconnect(mysql)) - goto end; - if (net_write_command(net,(uchar) command, header, header_length, - arg, arg_length)) - { - net->last_errno=CR_SERVER_GONE_ERROR; - strmov(net->last_error,ER(net->last_errno)); - goto end; - } - } - result=0; - if (!skip_check) - result= ((mysql->packet_length=net_safe_read(mysql)) == packet_error ? - 1 : 0); - end: - reset_sigpipe(mysql); - return result; -} - - -my_bool -simple_command(MYSQL *mysql,enum enum_server_command command, const char *arg, - ulong length, my_bool skip_check) -{ - return advanced_command(mysql, command, NullS, 0, arg, length, skip_check); -} - - -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(__NETWARE__) -/* default to "root" on NetWare */ -static void read_user_name(char *name) -{ - char *str=getenv("USER"); - strmake(name, str ? str : "UNKNOWN_USER", USERNAME_LENGTH); -} - -#elif !defined(MSDOS) && ! defined(VMS) && !defined(__WIN__) && !defined(OS2) - -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 */ @@ -841,530 +452,6 @@ pipe_sig_handler(int sig __attribute__((unused))) #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 where read; Ignoring rows")); - for (;;) - { - ulong pkt_len; - if ((pkt_len=net_safe_read(result->handle)) == packet_error) - break; - if (pkt_len <= 8 && 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-sets-dir", "default-character-set", "interactive-timeout", - "connect-timeout", "local-infile", "disable-local-infile", - "replication-probe", "enable-reads-from-master", "repl-parse-query", - "ssl-cipher", "max-allowed-packet", - "protocol", "shared-memory-base-name", - NullS -}; - -static TYPELIB option_types={array_elements(default_options)-1, - "options",default_options}; - -static int add_init_command(struct st_mysql_options *options, const char *cmd) -{ - char *tmp; - - if (!options->init_commands) - { - options->init_commands= (DYNAMIC_ARRAY*)my_malloc(sizeof(DYNAMIC_ARRAY), - MYF(MY_WME)); - init_dynamic_array(options->init_commands,sizeof(char*),0,5 CALLER_INFO); - } - - if (!(tmp= my_strdup(cmd,MYF(MY_WME))) || - insert_dynamic(options->init_commands, (gptr)&tmp)) - { - my_free(tmp, MYF(MY_ALLOW_ZERO_PTR)); - return 1; - } - - return 0; -} - -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 '=' */ - } - /* Change all '_' in variable name to '-' */ - for (end= *option ; *(end= strcend(end,'_')) ; ) - *end= '-'; - 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; - options->client_flag|= CLIENT_COMPRESS; - 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: - options->protocol = MYSQL_PROTOCOL_PIPE; - 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 */ - add_init_command(options,opt_arg); - 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; - case 21: - if (!opt_arg || atoi(opt_arg) != 0) - options->client_flag|= CLIENT_LOCAL_FILES; - else - options->client_flag&= ~CLIENT_LOCAL_FILES; - break; - case 22: - options->client_flag&= CLIENT_LOCAL_FILES; - break; - case 23: /* replication probe */ - options->rpl_probe= 1; - break; - case 24: /* enable-reads-from-master */ - options->no_master_reads= 0; - break; - case 25: /* repl-parse-query */ - options->rpl_parse= 1; - break; - case 27: - options->max_allowed_packet= atoi(opt_arg); - break; - case 28: /* protocol */ - if ((options->protocol = find_type(opt_arg, &sql_protocol_typelib,0)) == ~(ulong) 0) - { - fprintf(stderr, "Unknown option to protocol: %s\n", opt_arg); - exit(1); - } - break; - case 29: /* shared_memory_base_name */ -#ifdef HAVE_SMEM - if (options->shared_memory_base_name != def_shared_memory_base_name) - my_free(options->shared_memory_base_name,MYF(MY_ALLOW_ZERO_PTR)); - options->shared_memory_base_name=my_strdup(opt_arg,MYF(MY_WME)); -#endif - 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, uint server_capabilities) -{ - MYSQL_ROWS *row; - MYSQL_FIELD *field,*result; - ulong lengths[8]; /* Max of fields */ - DBUG_ENTER("unpack_fields"); - - field=result=(MYSQL_FIELD*) alloc_root(alloc, - (uint) sizeof(MYSQL_FIELD)*fields); - if (!result) - { - free_rows(data); /* Free old data */ - DBUG_RETURN(0); - } - bzero((char*) field, (uint) sizeof(MYSQL_FIELD)*fields); - if (server_capabilities & CLIENT_PROTOCOL_41) - { - /* server is 4.1, and returns the new field result format */ - for (row=data->data; row ; row = row->next,field++) - { - uchar *pos; - fetch_lengths(&lengths[0], row->data, default_value ? 7 : 6); - field->db = strdup_root(alloc,(char*) row->data[0]); - field->table = strdup_root(alloc,(char*) row->data[1]); - field->org_table= strdup_root(alloc,(char*) row->data[2]); - field->name = strdup_root(alloc,(char*) row->data[3]); - field->org_name = strdup_root(alloc,(char*) row->data[4]); - - field->db_length= lengths[0]; - field->table_length= lengths[1]; - field->org_table_length= lengths[2]; - field->name_length= lengths[3]; - field->org_name_length= lengths[4]; - - /* Unpack fixed length parts */ - pos= (uchar*) row->data[5]; - field->charsetnr= uint2korr(pos); - field->length= (uint) uint3korr(pos+2); - field->type= (enum enum_field_types) pos[5]; - field->flags= uint2korr(pos+6); - field->decimals= (uint) pos[8]; - - if (INTERNAL_NUM_FIELD(field)) - field->flags|= NUM_FLAG; - if (default_value && row->data[6]) - { - field->def=strdup_root(alloc,(char*) row->data[6]); - field->def_length= lengths[6]; - } - else - field->def=0; - field->max_length= 0; - } - } -#ifndef DELETE_SUPPORT_OF_4_0_PROTOCOL - else - { - /* old protocol, for backward compatibility */ - for (row=data->data; row ; row = row->next,field++) - { - fetch_lengths(&lengths[0], row->data, default_value ? 6 : 5); - field->org_table= 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]; - - field->org_table_length= field->table_length= lengths[0]; - field->name_length= lengths[1]; - - if (server_capabilities & CLIENT_LONG_FLAG) - { - 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]); - field->def_length= lengths[5]; - } - else - field->def=0; - field->max_length= 0; - } - } -#endif /* DELETE_SUPPORT_OF_4_0_PROTOCOL */ - 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; - ulong pkt_len; - ulong len; - uchar *cp; - char *to, *end_to; - MYSQL_DATA *result; - MYSQL_ROWS **prev_ptr,*cur; - NET *net = &mysql->net; - DBUG_ENTER("read_rows"); - - if ((pkt_len= 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; - - /* - The last EOF packet is either a single 254 character or (in MySQL 4.1) - 254 followed by 1-7 status bytes. - - This doesn't conflict with normal usage of 254 which stands for a - string where the length of the string is 8 bytes. (see net_field_length()) - */ - - while (*(cp=net->read_pos) != 254 || pkt_len >= 8) - { - 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); - end_to=to+pkt_len-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; - if (len > (ulong) (end_to - to)) - { - free_rows(result); - net->last_errno=CR_MALFORMED_PACKET; - strmov(net->last_error,ER(net->last_errno)); - DBUG_RETURN(0); - } - 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 */ - if (pkt_len > 1) /* MySQL 4.1 protocol */ - { - mysql->warning_count= uint2korr(cp+1); - DBUG_PRINT("info",("warning_count: %ld", mysql->warning_count)); - } - 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, *end_pos; - uchar *prev_pos; - - if ((pkt_len=net_safe_read(mysql)) == packet_error) - return -1; - if (pkt_len <= 8 && mysql->net.read_pos[0] == 254) - { - if (pkt_len > 1) /* MySQL 4.1 protocol */ - mysql->warning_count= uint2korr(mysql->net.read_pos+1); - return 1; /* End of data */ - } - prev_pos= 0; /* allowed to write at packet[-1] */ - pos=mysql->net.read_pos; - end_pos=pos+pkt_len; - for (field=0 ; field < fields ; field++) - { - if ((len=(ulong) net_field_length(&pos)) == NULL_LENGTH) - { /* null field */ - row[field] = 0; - *lengths++=0; - } - else - { - if (len > (ulong) (end_pos - pos)) - { - mysql->net.last_errno=CR_UNKNOWN_ERROR; - strmov(mysql->net.last_error,ER(mysql->net.last_errno)); - return -1; - } - 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; -} - /* perform query on master */ my_bool STDCALL mysql_master_query(MYSQL *mysql, const char *q, unsigned long length) @@ -1660,108 +747,6 @@ STDCALL mysql_rpl_query_type(const char* q, int len) return MYSQL_RPL_MASTER; /* By default, send to master */ } - -/**************************************************************************** - 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; - } - else - bzero((char*) (mysql),sizeof(*(mysql))); - mysql->options.connect_timeout=CONNECT_TIMEOUT; - mysql->last_used_con = mysql->next_slave = mysql->master = mysql; - - /* - By default, we are a replication pivot. The caller must reset it - after we return if this is not the case. - */ - mysql->rpl_pivot = 1; -#if defined(SIGPIPE) && defined(THREAD) && !defined(__WIN__) - if (!((mysql)->client_flag & CLIENT_IGNORE_SIGPIPE)) - (void) signal(SIGPIPE,pipe_sig_handler); -#endif - -/* - Only enable LOAD DATA INFILE by default if configured with - --enable-local-infile -*/ -#ifdef ENABLED_LOCAL_INFILE - mysql->options.client_flag|= CLIENT_LOCAL_FILES; -#endif -#ifdef HAVE_SMEM - mysql->options.shared_memory_base_name=(char*)def_shared_memory_base_name; -#endif - return mysql; -} - - -/* - Initialize the MySQL library - - SYNOPSIS - mysql_once_init() - - NOTES - Can't be static on NetWare - This function is called by mysql_init() and indirectly called - by mysql_query(), so one should never have to call this from an - outside program. -*/ - -void mysql_once_init(void) -{ - if (!mysql_client_init) - { - mysql_client_init=1; - org_my_init_done=my_init_done; - 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) && !defined(__WIN__) - (void) signal(SIGPIPE,SIG_IGN); -#endif - } -#ifdef THREAD - else - my_thread_init(); /* Init if new thread */ -#endif -} - - /* Fill in SSL part of MYSQL structure and set 'use_ssl' flag. NB! Errors are not reported until you do mysql_real_connect. @@ -1787,101 +772,6 @@ mysql_ssl_set(MYSQL *mysql __attribute__((unused)) , return 0; } - -/* - Free strings in the SSL structure and clear 'use_ssl' flag. - NB! Errors are not reported until you do mysql_real_connect. -*/ - -#ifdef HAVE_OPENSSL -static void -mysql_ssl_free(MYSQL *mysql __attribute__((unused))) -{ - 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)); - my_free(mysql->options.ssl_cipher, MYF(MY_ALLOW_ZERO_PTR)); - my_free(mysql->connector_fd,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.ssl_cipher= 0; - mysql->options.use_ssl = FALSE; - mysql->connector_fd = 0; -} -#endif /* HAVE_OPENSSL */ - - -/* - Handle password authentication -*/ - -static my_bool mysql_autenticate(MYSQL *mysql, const char *passwd) -{ - ulong pkt_length; - NET *net= &mysql->net; - char buff[SCRAMBLE41_LENGTH]; - char password_hash[SCRAMBLE41_LENGTH]; /* Used for storage of stage1 hash */ - - /* We shall only query server if it expect us to do so */ - if ((pkt_length=net_safe_read(mysql)) == packet_error) - goto error; - - if (mysql->server_capabilities & CLIENT_SECURE_CONNECTION) - { - /* - This should always happen with new server unless empty password - OK/Error packets have zero as the first char - */ - if (pkt_length == 24 && net->read_pos[0]) - { - /* Old passwords will have '*' at the first byte of hash */ - if (net->read_pos[0] != '*') - { - /* Build full password hash as it is required to decode scramble */ - password_hash_stage1(buff, passwd); - /* Store copy as we'll need it later */ - memcpy(password_hash,buff,SCRAMBLE41_LENGTH); - /* Finally hash complete password using hash we got from server */ - password_hash_stage2(password_hash,(const char*) net->read_pos); - /* Decypt and store scramble 4 = hash for stage2 */ - password_crypt((const char*) net->read_pos+4,mysql->scramble_buff, - password_hash, SCRAMBLE41_LENGTH); - mysql->scramble_buff[SCRAMBLE41_LENGTH]=0; - /* Encode scramble with password. Recycle buffer */ - password_crypt(mysql->scramble_buff,buff,buff,SCRAMBLE41_LENGTH); - } - else - { - /* Create password to decode scramble */ - create_key_from_old_password(passwd,password_hash); - /* Decypt and store scramble 4 = hash for stage2 */ - password_crypt((const char*) net->read_pos+4,mysql->scramble_buff, - password_hash, SCRAMBLE41_LENGTH); - mysql->scramble_buff[SCRAMBLE41_LENGTH]=0; - /* Finally scramble decoded scramble with password */ - scramble(buff, mysql->scramble_buff, passwd,0); - } - /* Write second package of authentication */ - if (my_net_write(net,buff,SCRAMBLE41_LENGTH) || net_flush(net)) - { - net->last_errno= CR_SERVER_LOST; - strmov(net->last_error,ER(net->last_errno)); - goto error; - } - /* Read what server thinks about out new auth message report */ - if (net_safe_read(mysql) == packet_error) - goto error; - } - } - return 0; - -error: - return 1; -} - /************************************************************************** Connect to sql server If host == 0 then use localhost @@ -1906,601 +796,6 @@ mysql_connect(MYSQL *mysql,const char *host, } #endif - -/* - 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,ulong 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; - ulong 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"); - LINT_INIT(host_info); - - 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 */ -#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_SMEM) - if ((!mysql->options.protocol || - mysql->options.protocol == MYSQL_PROTOCOL_MEMORY) && - (!host || !strcmp(host,LOCAL_HOST))) - { - if ((create_shared_memory(mysql,net, mysql->options.connect_timeout)) == - INVALID_HANDLE_VALUE) - { - DBUG_PRINT("error", - ("host: '%s' socket: '%s' shared memory: %s have_tcpip: %d", - host ? host : "<null>", - unix_socket ? unix_socket : "<null>", - (int) mysql->options.shared_memory_base_name, - (int) have_tcpip)); - if (mysql->options.protocol == MYSQL_PROTOCOL_MEMORY) - goto error; - /* Try also with PIPE or TCP/IP */ - } - else - { - mysql->options.protocol=MYSQL_PROTOCOL_MEMORY; - sock=0; - unix_socket = 0; - host=mysql->options.shared_memory_base_name; - host_info=(char*) ER(CR_SHARED_MEMORY_CONNECTION); - } - } else -#endif /* HAVE_SMEM */ -#if defined(HAVE_SYS_UN_H) - if ((!mysql->options.protocol || - mysql->options.protocol == MYSQL_PROTOCOL_SOCKET)&& - (!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),socket_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 (my_connect(sock,(struct sockaddr *) &UNIXaddr, sizeof(UNIXaddr), - mysql->options.connect_timeout)) - { - DBUG_PRINT("error",("Got error %d on connect to local server", - socket_errno)); - net->last_errno=CR_CONNECTION_ERROR; - sprintf(net->last_error,ER(net->last_errno),unix_socket,socket_errno); - goto error; - } - else - mysql->options.protocol=MYSQL_PROTOCOL_SOCKET; - } - else -#elif defined(__WIN__) - { - if ((!mysql->options.protocol || - mysql->options.protocol == MYSQL_PROTOCOL_PIPE)&& - ((unix_socket || !host && is_NT() || - host && !strcmp(host,LOCAL_HOST_NAMEDPIPE) ||! have_tcpip))&& - (!net->vio)) - { - 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' have_tcpip: %d", - host ? host : "<null>", - unix_socket ? unix_socket : "<null>", - (int) have_tcpip)); - if (mysql->options.protocol == MYSQL_PROTOCOL_PIPE || - (host && !strcmp(host,LOCAL_HOST_NAMEDPIPE)) || - (unix_socket && !strcmp(unix_socket,MYSQL_NAMEDPIPE))) - goto error; - /* Try also with TCP/IP */ - } - else - { - net->vio=vio_new_win32pipe(hPipe); - sprintf(host_info=buff, ER(CR_NAMEDPIPE_CONNECTION), host, - unix_socket); - } - } - } -#endif - if ((!mysql->options.protocol || - mysql->options.protocol == MYSQL_PROTOCOL_TCP)&&(!net->vio)) - { - 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),socket_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 - { - 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) - { - my_gethostbyname_r_free(); - 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); - my_gethostbyname_r_free(); - } - sock_addr.sin_port = (ushort) htons((ushort) port); - if (my_connect(sock,(struct sockaddr *) &sock_addr, sizeof(sock_addr), - mysql->options.connect_timeout)) - { - DBUG_PRINT("error",("Got error %d on connect to '%s'",socket_errno, - host)); - net->last_errno= CR_CONN_HOST_ERROR; - sprintf(net->last_error ,ER(CR_CONN_HOST_ERROR), host, socket_errno); - goto error; - } - } - else if (!net->vio) - { - DBUG_PRINT("error",("Unknow protocol %d ",mysql->options.protocol)); - net->last_errno= CR_CONN_UNKNOW_PROTOCOL; - sprintf(net->last_error ,ER(CR_CONN_UNKNOW_PROTOCOL)); - 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 protocol 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) - { - 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(0)))) - 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.ssl_key || mysql->options.ssl_cert || - mysql->options.ssl_ca || mysql->options.ssl_capath || - mysql->options.ssl_cipher) - mysql->options.use_ssl= 1; - if (mysql->options.use_ssl) - client_flag|=CLIENT_SSL; -#endif /* HAVE_OPENSSL */ - if (db) - client_flag|=CLIENT_CONNECT_WITH_DB; - /* Remove options that server doesn't support */ - client_flag= ((client_flag & - ~(CLIENT_COMPRESS | CLIENT_SSL | CLIENT_PROTOCOL_41)) | - (client_flag & mysql->server_capabilities)); - -#ifndef HAVE_COMPRESS - client_flag&= ~CLIENT_COMPRESS; -#endif - - if (client_flag & CLIENT_PROTOCOL_41) - { - /* 4.1 server and 4.1 client has a 4 byte option flag */ - int4store(buff,client_flag); - int4store(buff+4,max_allowed_packet); - end= buff+8; - } - else - { - int2store(buff,client_flag); - int3store(buff+2,max_allowed_packet); - end= buff+5; - } - 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) - { - struct st_mysql_options *options= &mysql->options; - if (my_net_write(net,buff,(uint) (end-buff)) || net_flush(net)) - { - net->last_errno= CR_SERVER_LOST; - strmov(net->last_error,ER(net->last_errno)); - goto error; - } - /* Do the SSL layering. */ - if (!(mysql->connector_fd= - (gptr) new_VioSSLConnectorFd(options->ssl_key, - options->ssl_cert, - options->ssl_ca, - options->ssl_capath, - options->ssl_cipher))) - { - net->last_errno= CR_SSL_CONNECTION_ERROR; - strmov(net->last_error,ER(net->last_errno)); - goto error; - } - DBUG_PRINT("info", ("IO layer change in progress...")); - if (sslconnect((struct st_VioSSLConnectorFd*)(mysql->connector_fd), - mysql->net.vio, (long) (mysql->options.connect_timeout))) - { - net->last_errno= CR_SSL_CONNECTION_ERROR; - strmov(net->last_error,ER(net->last_errno)); - goto error; - } - DBUG_PRINT("info", ("IO layer change done!")); - } -#endif /* HAVE_OPENSSL */ - - DBUG_PRINT("info",("Server version = '%s' capabilites: %lu status: %u client_flag: %lu", - mysql->server_version,mysql->server_capabilities, - mysql->server_status, client_flag)); - /* This needs to be changed as it's not useful with big packets */ - if (user && user[0]) - strmake(end,user,32); /* Max user name */ - else - read_user_name((char*) end); - /* We have to handle different version of handshake here */ -#ifdef _CUSTOMCONFIG_ -#include "_cust_libmysql.h"; -#endif - DBUG_PRINT("info",("user: %s",end)); - /* - We always start with old type handshake the only difference is message sent - If server handles secure connection type we'll not send the real scramble - */ - if (mysql->server_capabilities & CLIENT_SECURE_CONNECTION) - { - if (passwd[0]) - { - /* Prepare false scramble */ - end=strend(end)+1; - bfill(end, SCRAMBLE_LENGTH, 'x'); - end+=SCRAMBLE_LENGTH; - *end=0; - } - else /* For empty password*/ - { - end=strend(end)+1; - *end=0; /* Store zero length scramble */ - } - } - else - { - /* - Real scramble is only sent to old servers. This can be blocked - by calling mysql_options(MYSQL *, MYSQL_SECURE_CONNECT, (char*) &1); - */ - end=scramble(strend(end)+1, mysql->scramble_buff, passwd, - (my_bool) (mysql->protocol_version == 9)); - } - /* Add database if needed */ - 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; - } - /* Write authentication package */ - if (my_net_write(net,buff,(ulong) (end-buff)) || net_flush(net)) - { - net->last_errno= CR_SERVER_LOST; - strmov(net->last_error,ER(net->last_errno)); - goto error; - } - - if (mysql_autenticate(mysql, passwd)) - goto error; - - if (client_flag & CLIENT_COMPRESS) /* We will use compression */ - net->compress=1; - if (mysql->options.max_allowed_packet) - net->max_packet_size= mysql->options.max_allowed_packet; - if (db && mysql_select_db(mysql,db)) - goto error; - - if (mysql->options.init_commands) - { - DYNAMIC_ARRAY *init_commands= mysql->options.init_commands; - char **ptr= (char**)init_commands->buffer; - char **end= ptr + init_commands->elements; - - my_bool reconnect=mysql->reconnect; - mysql->reconnect=0; - - for (; ptr<end; ptr++) - { - MYSQL_RES *res; - if (mysql_query(mysql,*ptr)) - goto error; - if (mysql->fields) - { - if (!(res= mysql_use_result(mysql))) - goto error; - mysql_free_result(res); - } - } - - mysql->reconnect=reconnect; - } - - if (mysql->options.rpl_probe && mysql_rpl_probe(mysql)) - goto error; - - 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); -} - - -/* needed when we move MYSQL structure to a different address */ - -static void mysql_fix_pointers(MYSQL* mysql, MYSQL* old_mysql) -{ - MYSQL *tmp, *tmp_prev; - if (mysql->master == old_mysql) - mysql->master = mysql; - if (mysql->last_used_con == old_mysql) - mysql->last_used_con = mysql; - if (mysql->last_used_slave == old_mysql) - mysql->last_used_slave = mysql; - for (tmp_prev = mysql, tmp = mysql->next_slave; - tmp != old_mysql;tmp = tmp->next_slave) - { - tmp_prev = tmp; - } - tmp_prev->next_slave = mysql; -} - - -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) - { - /* Allow reconnect next time */ - mysql->server_status&= ~SERVER_STATUS_IN_TRANS; - mysql->net.last_errno=CR_SERVER_GONE_ERROR; - strmov(mysql->net.last_error,ER(mysql->net.last_errno)); - DBUG_RETURN(1); - } - mysql_init(&tmp_mysql); - tmp_mysql.options=mysql->options; - bzero((char*) &mysql->options,sizeof(mysql->options)); - tmp_mysql.rpl_pivot = mysql->rpl_pivot; - if (!mysql_real_connect(&tmp_mysql,mysql->host,mysql->user,mysql->passwd, - mysql->db, mysql->port, mysql->unix_socket, - mysql->client_flag)) - { - mysql->net.last_errno= tmp_mysql.net.last_errno; - strmov(mysql->net.last_error, tmp_mysql.net.last_error); - DBUG_RETURN(1); - } - tmp_mysql.free_me=mysql->free_me; - mysql->free_me=0; - mysql_close(mysql); - *mysql=tmp_mysql; - mysql_fix_pointers(mysql, &tmp_mysql); /* adjust connection pointers */ - net_clear(&mysql->net); - mysql->affected_rows= ~(my_ulonglong) 0; - DBUG_RETURN(0); -} - - /************************************************************************** Change user and database **************************************************************************/ @@ -2569,111 +864,6 @@ error: DBUG_RETURN(1); } - -/************************************************************************** - 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,(ulong) 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 */ - mysql->reconnect=0; - simple_command(mysql,COM_QUIT,NullS,0,1); - end_server(mysql); /* Sets mysql->net.vio= 0 */ - } - 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.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)); - if (mysql->options.init_commands) - { - DYNAMIC_ARRAY *init_commands= mysql->options.init_commands; - char **ptr= (char**)init_commands->buffer; - char **end= ptr + init_commands->elements; - for (; ptr<end; ptr++) - my_free(*ptr,MYF(MY_WME)); - delete_dynamic(init_commands); - my_free((char*)init_commands,MYF(MY_WME)); - } -#ifdef HAVE_OPENSSL - mysql_ssl_free(mysql); -#endif /* HAVE_OPENSSL */ -#ifdef HAVE_SMEM - if (mysql->options.shared_memory_base_name != def_shared_memory_base_name) - my_free(mysql->options.shared_memory_base_name,MYF(MY_ALLOW_ZERO_PTR)); -#endif /* HAVE_SMEM */ - /* Clear pointers for better safety */ - mysql->host_info=mysql->user=mysql->passwd=mysql->db=0; - bzero((char*) &mysql->options,sizeof(mysql->options)); - - /* free/close slave list */ - if (mysql->rpl_pivot) - { - MYSQL* tmp; - for (tmp = mysql->next_slave; tmp != mysql; ) - { - /* trick to avoid following freed pointer */ - MYSQL* tmp1 = tmp->next_slave; - mysql_close(tmp); - tmp = tmp1; - } - mysql->rpl_pivot=0; - } - if (mysql->stmts) - { - /* Free any open prepared statements */ - LIST *element, *next_element; - for (element= mysql->stmts; element; element= next_element) - { - next_element= element->next; - stmt_close((MYSQL_STMT *)element->data, 0); - } - } - if (mysql != mysql->master) - mysql_close(mysql->master); - 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 @@ -2746,225 +936,6 @@ STDCALL mysql_add_slave(MYSQL* mysql, const char* host, return 0; } - -/* - 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, ulong length) -{ - DBUG_ENTER("mysql_send_query"); - DBUG_PRINT("enter",("rpl_parse: %d rpl_pivot: %d", - mysql->options.rpl_parse, mysql->rpl_pivot)); - - if (mysql->options.rpl_parse && mysql->rpl_pivot) - { - switch (mysql_rpl_query_type(query, length)) { - case MYSQL_RPL_MASTER: - DBUG_RETURN(mysql_master_send_query(mysql, query, length)); - case MYSQL_RPL_SLAVE: - DBUG_RETURN(mysql_slave_send_query(mysql, query, length)); - case MYSQL_RPL_ADMIN: - break; /* fall through */ - } - } - - mysql->last_used_con = mysql; - DBUG_RETURN(simple_command(mysql, COM_QUERY, query, length, 1)); -} - - -my_bool STDCALL mysql_read_query_result(MYSQL *mysql) -{ - uchar *pos; - ulong field_count; - MYSQL_DATA *fields; - ulong length; - DBUG_ENTER("mysql_read_query_result"); - - /* - Read from the connection which we actually used, which - could differ from the original connection if we have slaves - */ - mysql = mysql->last_used_con; - - 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 (protocol_41(mysql)) - { - mysql->server_status=uint2korr(pos); pos+=2; - mysql->warning_count=uint2korr(pos); pos+=2; - } - else if (mysql->server_capabilities & CLIENT_TRANSACTIONS) - { - mysql->server_status=uint2korr(pos); pos+=2; - mysql->warning_count= 0; - } - DBUG_PRINT("info",("status: %ld warning_count: %ld", - mysql->server_status, mysql->warning_count)); - 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, protocol_41(mysql) ? 6 : 5))) - DBUG_RETURN(1); - if (!(mysql->fields=unpack_fields(fields,&mysql->field_alloc, - (uint) field_count,0, - mysql->server_capabilities))) - DBUG_RETURN(1); - mysql->status= MYSQL_STATUS_GET_RESULT; - mysql->field_count= (uint) field_count; - mysql->warning_count= 0; - DBUG_RETURN(0); -} - - -int STDCALL -mysql_real_query(MYSQL *mysql, const char *query, ulong length) -{ - DBUG_ENTER("mysql_real_query"); - DBUG_PRINT("enter",("handle: %lx",mysql)); - DBUG_PRINT("query",("Query = '%-.4096s'",query)); - - if (mysql_send_query(mysql,query,length)) - DBUG_RETURN(1); - DBUG_RETURN((int) mysql_read_query_result(mysql)); -} - - -static my_bool -send_file_to_server(MYSQL *mysql, const char *filename) -{ - int fd, readcount; - my_bool result= 1; - uint packet_length=MY_ALIGN(mysql->net.max_packet-16,IO_SIZE); - char *buf, tmp_name[FN_REFLEN]; - DBUG_ENTER("send_file_to_server"); - - if (!(buf=my_malloc(packet_length,MYF(0)))) - { - strmov(mysql->net.last_error, ER(mysql->net.last_errno=CR_OUT_OF_MEMORY)); - DBUG_RETURN(1); - } - - fn_format(tmp_name,filename,"","",4); /* Convert to client format */ - if ((fd = my_open(tmp_name,O_RDONLY, MYF(0))) < 0) - { - my_net_write(&mysql->net,"",0); /* Server needs one packet */ - net_flush(&mysql->net); - mysql->net.last_errno=EE_FILENOTFOUND; - my_snprintf(mysql->net.last_error,sizeof(mysql->net.last_error)-1, - EE(mysql->net.last_errno),tmp_name, errno); - goto err; - } - - while ((readcount = (int) my_read(fd,(byte*) buf,packet_length,MYF(0))) > 0) - { - if (my_net_write(&mysql->net,buf,readcount)) - { - DBUG_PRINT("error",("Lost connection to MySQL server during LOAD DATA of local file")); - mysql->net.last_errno=CR_SERVER_LOST; - strmov(mysql->net.last_error,ER(mysql->net.last_errno)); - goto err; - } - } - /* 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); - goto err; - } - if (readcount < 0) - { - mysql->net.last_errno=EE_READ; /* the errmsg for not entire file read */ - my_snprintf(mysql->net.last_error,sizeof(mysql->net.last_error)-1, - tmp_name,errno); - goto err; - } - result=0; /* Ok */ - -err: - if (fd >= 0) - (void) my_close(fd,MYF(0)); - my_free(buf,MYF(0)); - DBUG_RETURN(result); -} - - -/************************************************************************** - 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"); - - /* read from the actually used connection */ - mysql = mysql->last_used_con; - - 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((uint) (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. @@ -3027,76 +998,6 @@ mysql_fetch_field(MYSQL_RES *result) 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; - /* Don't clear handle in mysql_free_results */ - res->handle=0; - } - } - 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. -**************************************************************************/ - -static void fetch_lengths(ulong *to, MYSQL_ROW column, uint field_count) -{ - ulong *prev_length; - byte *start=0; - MYSQL_ROW end; - - prev_length=0; /* Keep gcc happy */ - for (end=column + field_count + 1 ; column != end ; column++, to++) - { - if (!*column) - { - *to= 0; /* Null */ - continue; - } - if (start) /* Found end of prev string */ - *prev_length= (ulong) (*column-start-1); - start= *column; - prev_length= to; - } -} - - ulong * STDCALL mysql_fetch_lengths(MYSQL_RES *res) { @@ -3109,21 +1010,6 @@ mysql_fetch_lengths(MYSQL_RES *res) 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 @@ -3445,22 +1331,6 @@ mysql_options(MYSQL *mysql,enum mysql_option option, const char *arg) 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; @@ -3503,16 +1373,6 @@ my_ulonglong STDCALL mysql_insert_id(MYSQL *mysql) return mysql->last_used_con->insert_id; } -uint STDCALL mysql_errno(MYSQL *mysql) -{ - return mysql->net.last_errno; -} - -const char * STDCALL mysql_error(MYSQL *mysql) -{ - return mysql->net.last_error; -} - uint STDCALL mysql_warning_count(MYSQL *mysql) { return mysql->warning_count; |