diff options
author | unknown <monty@donna.mysql.fi> | 2001-03-26 16:49:11 +0300 |
---|---|---|
committer | unknown <monty@donna.mysql.fi> | 2001-03-26 16:49:11 +0300 |
commit | 219682ef86a240014dce8649a15380b390863f30 (patch) | |
tree | 5da4abd6f52ae4b0af895f7c6248e92e8ccd2721 /client | |
parent | f51f5985380f3f439478c910844e209fede40021 (diff) | |
download | mariadb-git-219682ef86a240014dce8649a15380b390863f30.tar.gz |
Fix a crash in Innobase with tables with many columns and a range query
Removed all Attic directories.
BitKeeper/deleted/.del-myisam.doc~519bb06ecc870298:
Delete: Docs/Attic/myisam.doc
BitKeeper/deleted/.del-libmysql.c~72949a7043113807:
Delete: client/Attic/libmysql.c
BitKeeper/deleted/.del-net.c~c18042da6fa4e693:
Delete: client/Attic/net.c
BitKeeper/deleted/.del-print_defaults.c~362952979aa7b330:
Delete: extra/Attic/print_defaults.c
BitKeeper/deleted/.del-config-win32.h~65db818ec7e8f21b:
Delete: include/Attic/config-win32.h
BitKeeper/deleted/.del-m_ctype.h.in~f671e3c2d611ba97:
Delete: include/Attic/m_ctype.h.in
BitKeeper/deleted/.del-mysql_com.h.in~85b1ea7ced528c32:
Delete: include/Attic/mysql_com.h.in
BitKeeper/deleted/.del-ft_global.h~fe46fb515f1e375:
Delete: myisam/Attic/ft_global.h
BitKeeper/deleted/.del-lex_hash.h~14f912771118b50c:
Delete: sql/Attic/lex_hash.h
BitKeeper/deleted/.del-mini_client.c~9a3778c387d06a81:
Delete: sql/Attic/mini_client.c
BitKeeper/deleted/.del-mini_client_errors.c~29edad51a5d0b068:
Delete: sql/Attic/mini_client_errors.c
BitKeeper/deleted/.del-mybinlogdump.cc~5dbdd2bde98d6169:
Delete: sql/Attic/mybinlogdump.cc
BitKeeper/deleted/.del-net_serv.c~52dabcd773a39e10:
Delete: sql/Attic/net_serv.c
BitKeeper/deleted/.del-bootstrap-ctype.c~6d2a8cda2d6a35ff:
Delete: strings/Attic/bootstrap-ctype.c
BitKeeper/deleted/.del-ct_init.c~f0948bdd35ceedc3:
Delete: strings/Attic/ct_init.c
BitKeeper/deleted/.del-ctype-cp1251.c~cdf74b9168408b3:
Delete: strings/Attic/ctype-cp1251.c
BitKeeper/deleted/.del-ctype-cp1257.c~732611cbc74aeafc:
Delete: strings/Attic/ctype-cp1257.c
BitKeeper/deleted/.del-ctype-croat.c~d2d805ee6f10cbcc:
Delete: strings/Attic/ctype-croat.c
BitKeeper/deleted/.del-ctype-danish.c~dc5451066eb272ae:
Delete: strings/Attic/ctype-danish.c
BitKeeper/deleted/.del-ctype-dec8.c~68f257dd2202d0c7:
Delete: strings/Attic/ctype-dec8.c
BitKeeper/deleted/.del-ctype-dos.c~f77bd08acf13a8c1:
Delete: strings/Attic/ctype-dos.c
BitKeeper/deleted/.del-ctype-estonia.c~fc8a69424f7cb66b:
Delete: strings/Attic/ctype-estonia.c
BitKeeper/deleted/.del-ctype-german1.c~f7830c509bb358f7:
Delete: strings/Attic/ctype-german1.c
BitKeeper/deleted/.del-ctype-greek.c~90acdff1195209ca:
Delete: strings/Attic/ctype-greek.c
BitKeeper/deleted/.del-ctype-hebrew.c~d3b4a000d51e76dc:
Delete: strings/Attic/ctype-hebrew.c
BitKeeper/deleted/.del-ctype-hp8.c~749e1be0f028d349:
Delete: strings/Attic/ctype-hp8.c
BitKeeper/deleted/.del-ctype-hungarian.c~5cf0bf7fa0312637:
Delete: strings/Attic/ctype-hungarian.c
BitKeeper/deleted/.del-ctype-koi8_ru.c~8ff4188c642c9bd:
Delete: strings/Attic/ctype-koi8_ru.c
BitKeeper/deleted/.del-ctype-koi8_ukr.c~a04aa14a6d62335a:
Delete: strings/Attic/ctype-koi8_ukr.c
BitKeeper/deleted/.del-ctype-latin1.c~cc63880f19c2303e:
Delete: strings/Attic/ctype-latin1.c
BitKeeper/deleted/.del-ctype-latin2.c~31895c4b83654342:
Delete: strings/Attic/ctype-latin2.c
BitKeeper/deleted/.del-ctype-swe7.c~bb1b012225d7d02c:
Delete: strings/Attic/ctype-swe7.c
BitKeeper/deleted/.del-ctype-usa7.c~d19d859dca5675f:
Delete: strings/Attic/ctype-usa7.c
BitKeeper/deleted/.del-ctype-win1250.c~1ce7a24255780a1:
Delete: strings/Attic/ctype-win1250.c
BitKeeper/deleted/.del-ctype-win1251.c~762607f4fd7d52ad:
Delete: strings/Attic/ctype-win1251.c
BitKeeper/deleted/.del-ctype-win1251ukr.c~b5a7cca889bbef58:
Delete: strings/Attic/ctype-win1251ukr.c
BitKeeper/deleted/.del-ctype.c.in~8bf48d4bcbc5f675:
Delete: strings/Attic/ctype.c.in
BitKeeper/deleted/.del-memory.h~450f586e82a26d99:
Delete: strings/Attic/memory.h
BitKeeper/deleted/.del-ptr_cmp.c~57e682a26e769597:
Delete: strings/Attic/ptr_cmp.c
BitKeeper/deleted/.del-my-example.cnf.sh~87a7e1f4d24b62a9:
Delete: support-files/Attic/my-example.cnf.sh
BitKeeper/deleted/.del-my-huge.cfg.sh~589bdcd2d2c4360b:
Delete: support-files/Attic/my-huge.cfg.sh
BitKeeper/deleted/.del-my-large.cfg.sh~842c8e76253c9396:
Delete: support-files/Attic/my-large.cfg.sh
BitKeeper/deleted/.del-my-medium.cfg.sh~c49880d26ef0648e:
Delete: support-files/Attic/my-medium.cfg.sh
BitKeeper/deleted/.del-my-small.cfg.sh~85023c559a1d96c:
Delete: support-files/Attic/my-small.cfg.sh
sql/ha_innobase.cc:
Fix a crash with tables with many columns and a range query: memory corruption occurred
Docs/manual.texi:
Changelog
mysql-test/r/innobase.result:
New test case for innobase
scripts/mysql_install_db.sh:
Fixed typo
sql/ha_berkeley.h:
Fixed that 'have_bdb' is disabled if we can't initialize bdb
sql/ha_gemini.cc:
Removed include file that got compiliation to fail on some systems
sql/handler.cc:
Fixed that 'have_tabltype' is disabled if we can't initialize it.
sql/mysqld.cc:
Fix bug that could cause a fast connect/close to fail when using --debug
Diffstat (limited to 'client')
-rw-r--r-- | client/Attic/libmysql.c | 2392 | ||||
-rw-r--r-- | client/Attic/net.c | 628 |
2 files changed, 0 insertions, 3020 deletions
diff --git a/client/Attic/libmysql.c b/client/Attic/libmysql.c deleted file mode 100644 index 4f5e138fd53..00000000000 --- a/client/Attic/libmysql.c +++ /dev/null @@ -1,2392 +0,0 @@ -/* Copyright Abandoned 1996 TCX DataKonsult AB & Monty Program KB & Detron HB - This file is public domain and comes with NO WARRANTY of any kind */ - -#define DONT_USE_RAID -#if defined(__WIN32__) || defined(WIN32) -#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> -#ifdef HAVE_PWD_H -#include <pwd.h> -#endif -#if !defined(MSDOS) && !defined(__WIN32__) -#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(__WIN32__) -#include <my_pthread.h> /* because of signal() */ -#endif -#ifndef INADDR_NONE -#define INADDR_NONE -1 -#endif - -static my_bool mysql_client_init=0; -static MYSQL *current_mysql; -uint mysql_port=0; -my_string mysql_unix_port=0; - -#define CLIENT_CAPABILITIES (CLIENT_LONG_PASSWORD | CLIENT_LONG_FLAG | CLIENT_LOCAL_FILES) - -#if defined(MSDOS) || defined(__WIN32__) -#define ERRNO WSAGetLastError() -#define perror(A) -#else -#include <sys/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 remember_connection(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); - -/* - 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(__WIN32__) && defined(SIGPIPE) && !defined(THREAD) -#define init_sigpipe_variables sig_return old_signal_handler; -#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(File s, const struct sockaddr *name, uint namelen, uint to) -{ -#if defined(__WIN32__) - return connect(s, (struct sockaddr*) name, namelen); -#else - int flags, res, s_err; - size_socket s_err_size = sizeof(uint); - fd_set sfds; - struct timeval tv; - - /* If they passed us a timeout of zero, we should behave - * exactly like the normal connect() call does. - */ - - if (to == 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); - tv.tv_sec = (long) to; - tv.tv_usec = 0; - res = select(s+1, NULL, &sfds, NULL, &tv); - if (res <= 0) /* Never became writable */ - 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 suceed */ - errno = s_err; - return(-1); /* but return an error... */ - } - return(0); /* It's all good! */ -#endif -} - -/* -** Create a named pipe connection -*/ - -#ifdef __WIN32__ - -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=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); - 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; - remember_connection(mysql); - net_clear(net); /* Clear receive buffer */ - if (!arg) - arg=""; - - if (net_write_command(net,(uchar) command,arg, - length ? length :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 :strlen(arg))) - { - net->last_errno=CR_SERVER_GONE_ERROR; - strmov(net->last_error,ER(net->last_errno)); - reset_sigpipe(mysql); - 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); - init_alloc_root(&mysql->field_alloc,8192); /* Assume rowlength < 8192 */ - mysql->fields=0; - mysql->field_count=0; /* For API */ - DBUG_VOID_RETURN; -} - -#ifdef HAVE_GETPWUID -struct passwd *getpwuid(uid_t); -char* getlogin(void); -#endif - -#if !defined(MSDOS) && ! defined(VMS) && !defined(__WIN32__) -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; -/*#ifdef __cplusplus - extern "C" struct passwd *getpwuid(uid_t); - extern "C" { char* getlogin(void); } -#else - char * getlogin(); - struct passwd *getpwuid(uid_t); -#endif -*/ - 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"); - strmov(name,str ? str : "ODBC"); /* ODBC will send user variable */ -} - -#endif - -#ifdef __WIN32__ -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) -{ -#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 -} - - -/************************************************************************** -** Store the server socket currently in use -** Used by pipe_handler if error on socket interrupt -**************************************************************************/ - -static void -remember_connection(MYSQL *mysql) -{ - current_mysql = mysql; -} - -/************************************************************************** -** 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); - 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", -#ifdef HAVE_OPENSSL - "ssl_key" ,"ssl_cert" ,"ssl_ca" ,"ssl_capath", -#endif /* HAVE_OPENSSL */ - NullS -}; -static TYPELIB option_types={array_elements(default_options)-1,(char*) "options",(char **) 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 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; -#endif /* HAVE_OPENSSL */ - 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 (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); /* 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))); -#ifdef __WIN32__ - mysql->options.connect_timeout=20; -#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 __WIN32__ - 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; - delete reinterpret_cast<VioConnectorFd*>(mysql->connector_fd); - 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[100],*end,*host_info; - int sock; - ulong ip_addr; - struct sockaddr_in sock_addr; - uint pkt_length; - NET *net; -#ifdef __WIN32__ - 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); - /* 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; - - remember_connection(mysql); - mysql->reconnect=1; /* Reconnect as default */ - net= &mysql->net; - net->vio = 0; /* If something goes wrong */ - - /* - ** 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(__WIN32__) - { - 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)); - if ((sock = 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(&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->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 ((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); - if (pkt_length > (uint) (end+9 - (char*) net->read_pos)) - mysql->server_capabilities=uint2korr(end+9); - - /* Save connection information */ - if (!user) user=""; - if (!passwd) passwd=""; - if (!my_multi_malloc(MYF(0), - &mysql->host_info,strlen(host_info)+1, - &mysql->host,strlen(host)+1, - &mysql->unix_socket,unix_socket ? strlen(unix_socket)+1 - :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; - mysql->client_flag=client_flag | mysql->options.client_flag; - DBUG_PRINT("info",("Server version = '%s' capabilites: %ld", - mysql->server_version,mysql->server_capabilities)); - - /* 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 */ - - int3store(buff+2,max_allowed_packet); - if (user && user[0]) - strmake(buff+5,user,32); - 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=strmov(end+1,db); - 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->host_info) - 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); - memcpy(mysql,&tmp_mysql,sizeof(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,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.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)); - /* 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,strlen(query)); -} - - -int STDCALL -mysql_real_query(MYSQL *mysql, const char *query,uint length) -{ - uchar *pos; - ulong field_count; - MYSQL_DATA *fields; - 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) || - (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 (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 */ - } - 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); -} - - -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 - { - res->eof=1; - res->handle->status=MYSQL_STATUS_READY; - } - } - DBUG_RETURN((MYSQL_ROW) NULL); - } - { - MYSQL_ROW tmp; - if (!res->data_cursor) - 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(%d)",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 dosen'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; - 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 mysql_num_rows(MYSQL_RES *res) -{ - return res->row_count; -} - -unsigned int mysql_num_fields(MYSQL_RES *res) -{ - return res->field_count; -} - -my_bool mysql_eof(MYSQL_RES *res) -{ - return res->eof; -} - -MYSQL_FIELD *mysql_fetch_field_direct(MYSQL_RES *res,uint fieldnr) -{ - return &(res)->fields[fieldnr]; -} - -MYSQL_FIELD *mysql_fetch_fields(MYSQL_RES *res) -{ - return (res)->fields; -} - -MYSQL_ROWS *mysql_row_tell(MYSQL_RES *res) -{ - return res->data_cursor; -} - -uint mysql_field_tell(MYSQL_RES *res) -{ - return (res)->current_field; -} - -/* MYSQL */ - -unsigned int mysql_field_count(MYSQL *mysql) -{ - return mysql->field_count; -} - -my_ulonglong mysql_affected_rows(MYSQL *mysql) -{ - return (mysql)->affected_rows; -} - -my_ulonglong mysql_insert_id(MYSQL *mysql) -{ - return (mysql)->insert_id; -} - -uint mysql_errno(MYSQL *mysql) -{ - return (mysql)->net.last_errno; -} - -char *mysql_error(MYSQL *mysql) -{ - return (mysql)->net.last_error; -} - -char *mysql_info(MYSQL *mysql) -{ - return (mysql)->info; -} - -ulong mysql_thread_id(MYSQL *mysql) -{ - return (mysql)->thread_id; -} - -/**************************************************************************** -** 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) -{ - const char *to_start=to; - const char *end; - for (end=from+length; from != end ; from++) - { -#ifdef USE_MB - int l; - if ((l = ismbchar(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 '\032': /* 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(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; - - 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 ((l = ismbchar(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 '\032': /* This gives problems on Win32 */ - *to++= '\\'; - *to++= 'Z'; - break; - default: - *to++= *from; - } - } - return to; -} - - -void STDCALL -myodbc_remove_escape(char *name) -{ - char *to; -#ifdef USE_MB - char *end; - for (end=name; *end ; end++) ; -#endif - - for (to=name ; *name ; name++) - { -#ifdef USE_MB - int l; - if( (l = ismbchar( name , end ) ) ) { - while (l--) - *to++ = *name++; - name--; - continue; - } -#endif - if (*name == '\\' && name[1]) - name++; - *to++= *name; - } - *to=0; -} diff --git a/client/Attic/net.c b/client/Attic/net.c deleted file mode 100644 index 4ea3f002bbc..00000000000 --- a/client/Attic/net.c +++ /dev/null @@ -1,628 +0,0 @@ -/* Copyright Abandoned 1996 TCX DataKonsult AB & Monty Program KB & Detron HB - This file is public domain and comes with NO WARRANTY of any kind */ - -/* Write and read of logical packets to/from socket -** Writes are cached into net_buffer_length big packets. -** Read packets are reallocated dynamicly when reading big packets. -** Each logical packet has the following pre-info: -** 3 byte length & 1 byte package-number. -*/ - -#ifdef _WIN32 -#include <winsock.h> -#endif -#include <global.h> -#include <violite.h> -#include <my_sys.h> -#include <m_string.h> -#include "mysql.h" -#include <signal.h> -#include <errno.h> -#include <sys/types.h> -#include <violite.h> - -#if !defined(__WIN__) && !defined(MSDOS) -#include <sys/socket.h> -#else -#undef MYSQL_SERVER // Win32 can't handle interrupts -#endif -#if !defined(MSDOS) && !defined(__WIN__) && !defined(HAVE_BROKEN_NETINET_INCLUDES) && !defined(__BEOS__) -#include <netinet/in_systm.h> -#include <netinet/in.h> -#include <netinet/ip.h> -#if !defined(alpha_linux_port) -#include <netinet/tcp.h> -#endif -#endif -#include "mysqld_error.h" -#ifdef MYSQL_SERVER -#include "my_pthread.h" -#include "thr_alarm.h" -void sql_print_error(const char *format,...); -#define RETRY_COUNT mysqld_net_retry_count -extern ulong mysqld_net_retry_count; -#else -typedef my_bool thr_alarm_t; -typedef my_bool ALARM; -#define thr_alarm_init(A) (*A)=0 -#define thr_alarm_in_use(A) (A) -#define thr_end_alarm(A) -#define thr_alarm(A,B,C) local_thr_alarm((A),(B),(C)) -static inline int local_thr_alarm(my_bool *A,int B __attribute__((unused)),ALARM *C __attribute__((unused))) -{ - *A=1; - return 0; -} -#define thr_got_alarm(A) 0 -#define RETRY_COUNT 1 -#endif - -#ifdef MYSQL_SERVER -extern ulong bytes_sent, bytes_received; -extern pthread_mutex_t LOCK_bytes_sent , LOCK_bytes_received; -#else -#undef thread_safe_add -#define thread_safe_add(A,B,C) -#endif - -/* -** Give error if a too big packet is found -** The server can change this with the -O switch, but because the client -** can't normally do this the client should have a bigger max-buffer. -*/ - -#ifdef MYSQL_SERVER -ulong max_allowed_packet=65536; -extern uint test_flags; -#else -ulong max_allowed_packet=16*1024*1024L; -#endif -ulong net_buffer_length=8192; /* Default length. Enlarged if necessary */ - -#define TEST_BLOCKING 8 -static int net_write_buff(NET *net,const char *packet,uint len); - - - /* Init with packet info */ - -int my_net_init(NET *net, Vio* vio) -{ - if (!(net->buff=(uchar*) my_malloc(net_buffer_length,MYF(MY_WME)))) - return 1; - if (net_buffer_length > max_allowed_packet) - max_allowed_packet=net_buffer_length; - net->buff_end=net->buff+(net->max_packet=net_buffer_length); - net->vio = vio; - net->error=0; net->return_errno=0; net->return_status=0; - net->timeout=NET_READ_TIMEOUT; /* Timeout for read */ - net->pkt_nr=0; - net->write_pos=net->read_pos = net->buff; - net->last_error[0]=0; - net->compress=0; net->reading_or_writing=0; - net->where_b = net->remain_in_buf=0; - net->last_errno=0; - - if (vio != 0) /* If real connection */ - { - net->fd = vio_fd(vio); /* For perl DBI/DBD */ -#if defined(MYSQL_SERVER) && !defined(___WIN__) && !defined(__EMX__) - if (!(test_flags & TEST_BLOCKING)) - vio_blocking(vio, FALSE); -#endif - vio_fastsend(vio,TRUE); - } - return 0; -} - -void net_end(NET *net) -{ - my_free((gptr) net->buff,MYF(MY_ALLOW_ZERO_PTR)); - net->buff=0; -} - -/* Realloc the packet buffer */ - -static my_bool net_realloc(NET *net, ulong length) -{ - uchar *buff; - ulong pkt_length; - if (length >= max_allowed_packet) - { - DBUG_PRINT("error",("Packet too large (%ld)", length)); -#ifdef MYSQL_SERVER - sql_print_error("Packet too large (%ld)\n", length); -#else - fprintf(stderr,"Packet too large (%ld)\n", length); -#endif - net->error=1; -#ifdef MYSQL_SERVER - net->last_errno=ER_NET_PACKET_TOO_LARGE; -#endif - return 1; - } - pkt_length = (length+IO_SIZE-1) & ~(IO_SIZE-1); - if (!(buff=(uchar*) my_realloc((char*) net->buff, pkt_length, MYF(MY_WME)))) - { - net->error=1; -#ifdef MYSQL_SERVER - net->last_errno=ER_OUT_OF_RESOURCES; -#endif - return 1; - } - net->buff=net->write_pos=buff; - net->buff_end=buff+(net->max_packet=pkt_length); - return 0; -} - - /* Remove unwanted characters from connection */ - -void net_clear(NET *net) -{ -#ifndef EXTRA_DEBUG - int count; - bool is_blocking=vio_is_blocking(net->vio); - if (is_blocking) - vio_blocking(net->vio, FALSE); - if (!vio_is_blocking(net->vio)) /* Safety if SSL */ - { - while ( (count = vio_read(net->vio, (char*) (net->buff), - net->max_packet)) > 0) - DBUG_PRINT("info",("skipped %d bytes from file: %s", - count,vio_description(net->vio))); - if (is_blocking) - vio_blocking(net->vio, TRUE); - } -#endif /* EXTRA_DEBUG */ - net->pkt_nr=0; /* Ready for new command */ - net->write_pos=net->buff; -} - - /* Flush write_buffer if not empty. */ - -int net_flush(NET *net) -{ - int error=0; - DBUG_ENTER("net_flush"); - if (net->buff != net->write_pos) - { - error=net_real_write(net,(char*) net->buff, - (uint) (net->write_pos - net->buff)); - net->write_pos=net->buff; - } - DBUG_RETURN(error); -} - - -/***************************************************************************** -** Write something to server/client buffer -*****************************************************************************/ - - -/* -** Write a logical packet with packet header -** Format: Packet length (3 bytes), packet number(1 byte) -** When compression is used a 3 byte compression length is added -** NOTE: If compression is used the original package is destroyed! -*/ - -int -my_net_write(NET *net,const char *packet,ulong len) -{ - uchar buff[NET_HEADER_SIZE]; - int3store(buff,len); - buff[3]= (net->compress) ? 0 : (uchar) (net->pkt_nr++); - if (net_write_buff(net,(char*) buff,NET_HEADER_SIZE)) - return 1; - return net_write_buff(net,packet,len); -} - -int -net_write_command(NET *net,uchar command,const char *packet,ulong len) -{ - uchar buff[NET_HEADER_SIZE+1]; - uint length=len+1; /* 1 extra byte for command */ - - int3store(buff,length); - buff[3]= (net->compress) ? 0 : (uchar) (net->pkt_nr++); - buff[4]=command; - if (net_write_buff(net,(char*) buff,5)) - return 1; - return test(net_write_buff(net,packet,len) || net_flush(net)); -} - - -static int -net_write_buff(NET *net,const char *packet,uint len) -{ - uint left_length=(uint) (net->buff_end - net->write_pos); - - while (len > left_length) - { - memcpy((char*) net->write_pos,packet,left_length); - if (net_real_write(net,(char*) net->buff,net->max_packet)) - return 1; - net->write_pos=net->buff; - packet+=left_length; - len-=left_length; - left_length=net->max_packet; - } - memcpy((char*) net->write_pos,packet,len); - net->write_pos+=len; - return 0; -} - -/* Read and write using timeouts */ - -int -net_real_write(NET *net,const char *packet,ulong len) -{ - int length; - char *pos,*end; - thr_alarm_t alarmed; -#if (!defined(__WIN__) && !defined(__EMX__)) - ALARM alarm_buff; -#endif - uint retry_count=0; - my_bool net_blocking = vio_is_blocking(net->vio); - DBUG_ENTER("net_real_write"); - - if (net->error == 2) - DBUG_RETURN(-1); /* socket can't be used */ - - net->reading_or_writing=2; -#ifdef HAVE_COMPRESS - if (net->compress) - { - ulong complen; - uchar *b; - uint header_length=NET_HEADER_SIZE+COMP_HEADER_SIZE; - if (!(b=(uchar*) my_malloc(len + NET_HEADER_SIZE + COMP_HEADER_SIZE, - MYF(MY_WME)))) - { -#ifdef MYSQL_SERVER - net->last_errno=ER_OUT_OF_RESOURCES; - net->error=2; -#endif - net->reading_or_writing=0; - DBUG_RETURN(1); - } - memcpy(b+header_length,packet,len); - - if (my_compress((byte*) b+header_length,&len,&complen)) - { - DBUG_PRINT("warning", - ("Compression error; Continuing without compression")); - complen=0; - } - int3store(&b[NET_HEADER_SIZE],complen); - int3store(b,len); - b[3]=(uchar) (net->pkt_nr++); - len+= header_length; - packet= (char*) b; - } -#endif /* HAVE_COMPRESS */ - - /* DBUG_DUMP("net",packet,len); */ -#ifdef MYSQL_SERVER - thr_alarm_init(&alarmed); - if (net_blocking) - thr_alarm(&alarmed,NET_WRITE_TIMEOUT,&alarm_buff); -#else - alarmed=0; -#endif /* MYSQL_SERVER */ - - pos=(char*) packet; end=pos+len; - while (pos != end) - { - if ((int) (length=vio_write(net->vio,pos,(size_t) (end-pos))) <= 0) - { - my_bool interrupted = vio_should_retry(net->vio); -#if (!defined(__WIN__) && !defined(__EMX__)) - if ((interrupted || length==0) && !thr_alarm_in_use(alarmed)) - { - if (!thr_alarm(&alarmed,NET_WRITE_TIMEOUT,&alarm_buff)) - { /* Always true for client */ - if (!vio_is_blocking(net->vio)) - { - while (vio_blocking(net->vio, TRUE) < 0) - { - if (vio_should_retry(net->vio) && retry_count++ < RETRY_COUNT) - continue; -#ifdef EXTRA_DEBUG - fprintf(stderr, - "%s: my_net_write: fcntl returned error %d, aborting thread\n", - my_progname,vio_errno(net->vio)); -#endif /* EXTRA_DEBUG */ - net->error=2; /* Close socket */ - goto end; - } - } - retry_count=0; - continue; - } - } - else -#endif /* (!defined(__WIN__) && !defined(__EMX__)) */ - if (thr_alarm_in_use(alarmed) && !thr_got_alarm(alarmed) && - interrupted) - { - if (retry_count++ < RETRY_COUNT) - continue; -#ifdef EXTRA_DEBUG - fprintf(stderr, "%s: write looped, aborting thread\n", - my_progname); -#endif /* EXTRA_DEBUG */ - } -#if defined(THREAD_SAFE_CLIENT) && !defined(MYSQL_SERVER) - if (vio_errno(net->vio) == EINTR) - { - DBUG_PRINT("warning",("Interrupted write. Retrying...")); - continue; - } -#endif /* defined(THREAD_SAFE_CLIENT) && !defined(MYSQL_SERVER) */ - net->error=2; /* Close socket */ -#ifdef MYSQL_SERVER - net->last_errno= (interrupted ? ER_NET_WRITE_INTERRUPTED : - ER_NET_ERROR_ON_WRITE); -#endif /* MYSQL_SERVER */ - break; - } - pos+=length; - thread_safe_add(bytes_sent,length,&LOCK_bytes_sent); - } -#ifndef __WIN__ - end: -#endif -#ifdef HAVE_COMPRESS - if (net->compress) - my_free((char*) packet,MYF(0)); -#endif - if (thr_alarm_in_use(alarmed)) - { - thr_end_alarm(&alarmed); - vio_blocking(net->vio, net_blocking); - } - net->reading_or_writing=0; - DBUG_RETURN(((int) (pos != end))); -} - - -/***************************************************************************** -** Read something from server/clinet -*****************************************************************************/ - - -static uint -my_real_read(NET *net, ulong *complen) -{ - uchar *pos; - long length; - uint i,retry_count=0; - ulong len=packet_error; - thr_alarm_t alarmed; -#if (!defined(__WIN__) && !defined(__EMX__)) || defined(MYSQL_SERVER) - ALARM alarm_buff; -#endif - my_bool net_blocking=vio_is_blocking(net->vio); - ulong remain= (net->compress ? NET_HEADER_SIZE+COMP_HEADER_SIZE : - NET_HEADER_SIZE); - *complen = 0; - - net->reading_or_writing=1; - thr_alarm_init(&alarmed); -#ifdef MYSQL_SERVER - if (net_blocking) - thr_alarm(&alarmed,net->timeout,&alarm_buff); -#endif /* MYSQL_SERVER */ - - pos = net->buff + net->where_b; /* net->packet -4 */ - for (i=0 ; i < 2 ; i++) - { - while (remain > 0) - { - /* First read is done with non blocking mode */ - if ((int) (length=vio_read(net->vio,(char*) pos,remain)) <= 0L) - { - my_bool interrupted = vio_should_retry(net->vio); - - DBUG_PRINT("info",("vio_read returned %d, errno: %d", - length, vio_errno(net->vio))); -#if (!defined(__WIN__) && !defined(__EMX__)) || defined(MYSQL_SERVER) - /* - We got an error that there was no data on the socket. We now set up - an alarm to not 'read forever', change the socket to non blocking - mode and try again - */ - if ((interrupted || length == 0) && !thr_alarm_in_use(alarmed)) - { - if (!thr_alarm(&alarmed,net->timeout,&alarm_buff)) /* Don't wait too long */ - { - if (!vio_is_blocking(net->vio)) - { - while (vio_blocking(net->vio,TRUE) < 0) - { - if (vio_should_retry(net->vio) && - retry_count++ < RETRY_COUNT) - continue; - DBUG_PRINT("error", - ("fcntl returned error %d, aborting thread", - vio_errno(net->vio))); -#ifdef EXTRA_DEBUG - fprintf(stderr, - "%s: read: fcntl returned error %d, aborting thread\n", - my_progname,vio_errno(net->vio)); -#endif /* EXTRA_DEBUG */ - len= packet_error; - net->error=2; /* Close socket */ -#ifdef MYSQL_SERVER - net->last_errno=ER_NET_FCNTL_ERROR; -#endif - goto end; - } - } - retry_count=0; - continue; - } - } -#endif /* (!defined(__WIN__) && !defined(__EMX__)) || defined(MYSQL_SERVER) */ - if (thr_alarm_in_use(alarmed) && !thr_got_alarm(alarmed) && - interrupted) - { /* Probably in MIT threads */ - if (retry_count++ < RETRY_COUNT) - continue; -#ifdef EXTRA_DEBUG - fprintf(stderr, "%s: read looped with error %d, aborting thread\n", - my_progname,vio_errno(net->vio)); -#endif /* EXTRA_DEBUG */ - } -#if defined(THREAD_SAFE_CLIENT) && !defined(MYSQL_SERVER) - if (vio_should_retry(net->vio)) - { - DBUG_PRINT("warning",("Interrupted read. Retrying...")); - continue; - } -#endif - DBUG_PRINT("error",("Couldn't read packet: remain: %d errno: %d length: %d alarmed: %d", remain,vio_errno(net->vio),length,alarmed)); - len= packet_error; - net->error=2; /* Close socket */ -#ifdef MYSQL_SERVER - net->last_errno= (interrupted ? ER_NET_READ_INTERRUPTED : - ER_NET_READ_ERROR); -#endif - goto end; - } - remain -= (ulong) length; - pos+= (ulong) length; - thread_safe_add(bytes_received,(ulong) length,&LOCK_bytes_received); - } - if (i == 0) - { /* First parts is packet length */ - ulong helping; - if (net->buff[net->where_b + 3] != (uchar) net->pkt_nr) - { - if (net->buff[net->where_b] != (uchar) 255) - { - DBUG_PRINT("error", - ("Packets out of order (Found: %d, expected %d)", - (int) net->buff[net->where_b + 3], - (uint) (uchar) net->pkt_nr)); -#ifdef EXTRA_DEBUG - fprintf(stderr,"Packets out of order (Found: %d, expected %d)\n", - (int) net->buff[net->where_b + 3], - (uint) (uchar) net->pkt_nr); -#endif - } - len= packet_error; -#ifdef MYSQL_SERVER - net->last_errno=ER_NET_PACKETS_OUT_OF_ORDER; -#endif - goto end; - } - net->pkt_nr++; -#ifdef HAVE_COMPRESS - if (net->compress) - { - /* complen is > 0 if package is really compressed */ - *complen=uint3korr(&(net->buff[net->where_b + NET_HEADER_SIZE])); - } -#endif - - len=uint3korr(net->buff+net->where_b); - helping = max(len,*complen) + net->where_b; - /* The necessary size of net->buff */ - if (helping >= net->max_packet) - { - /* We must allocate one extra byte for the end null */ - if (net_realloc(net,helping+1)) - { - len= packet_error; /* Return error */ - goto end; - } - } - pos=net->buff + net->where_b; - remain = len; - } - } - -end: - if (thr_alarm_in_use(alarmed)) - { - thr_end_alarm(&alarmed); - vio_blocking(net->vio, net_blocking); - } - net->reading_or_writing=0; - return(len); -} - - -uint -my_net_read(NET *net) -{ - ulong len,complen; - -#ifdef HAVE_COMPRESS - if (!net->compress) - { -#endif - len = my_real_read (net,&complen); - net->read_pos = net->buff + net->where_b; - if (len != packet_error) - net->read_pos[len]=0; /* Safeguard for mysql_use_result */ - return len; -#ifdef HAVE_COMPRESS - } - if (net->remain_in_buf) - net->buff[net->buf_length - net->remain_in_buf]=net->save_char; - for (;;) - { - if (net->remain_in_buf) - { - uchar *pos = net->buff + net->buf_length - net->remain_in_buf; - if (net->remain_in_buf >= 4) - { - net->length = uint3korr(pos); - if (net->length <= net->remain_in_buf - 4) - { - /* We have a full packet */ - len=net->length; - net->remain_in_buf -= net->length + 4; - net->read_pos=pos + 4; - break; /* We have a full packet */ - } - } - /* Move data down to read next data packet after current one */ - if (net->buf_length != net->remain_in_buf) - { - memmove(net->buff,pos,net->remain_in_buf); - net->buf_length=net->remain_in_buf; - } - net->where_b=net->buf_length; - } - else - { - net->where_b=0; - net->buf_length=0; - } - - if ((len = my_real_read(net,&complen)) == packet_error) - break; - if (my_uncompress((byte*) net->buff + net->where_b, &len, &complen)) - { - len= packet_error; - net->error=2; /* caller will close socket */ -#ifdef MYSQL_SERVER - net->last_errno=ER_NET_UNCOMPRESS_ERROR; -#endif - break; - } - net->buf_length+=len; - net->remain_in_buf+=len; - } - if (len != packet_error) - { - net->save_char= net->read_pos[len]; /* Must be saved */ - net->read_pos[len]=0; /* Safeguard for mysql_use_result */ - } - return len; -#endif -} |