Commit d31f7425 authored by unknown's avatar unknown

Added max_user_connections

Fixes for Innobase
Don't reset whole to-buffer in strxnmov


BUILD/compile-pentium-debug:
  Added innobase
include/mysqld_error.h:
  New error messages
innobase/configure.in:
  Update from heikki
innobase/include/lock0types.h:
  Update from heikki
innobase/include/os0sync.h:
  Update from heikki
innobase/include/sync0types.h:
  Update from heikki
innobase/os/os0file.c:
  Update from heikki
innobase/srv/srv0start.c:
  Update from heikki
sql/ha_innobase.cc:
  Update from Heikki
  Changed assert -> dbug_assert
  Changed return -> DBUG_RETURN
sql/mysql_priv.h:
  Added max_user_connections
sql/mysqld.cc:
  Added max_user_connections
sql/share/czech/errmsg.txt:
  Added max_user_connections
sql/share/danish/errmsg.txt:
  Added max_user_connections
sql/share/dutch/errmsg.txt:
  Added max_user_connections
sql/share/english/errmsg.txt:
  Added max_user_connections
sql/share/estonian/errmsg.txt:
  Added max_user_connections
sql/share/french/errmsg.txt:
  Added max_user_connections
sql/share/german/errmsg.txt:
  Added max_user_connections
sql/share/greek/errmsg.txt:
  Added max_user_connections
sql/share/hungarian/errmsg.txt:
  Added max_user_connections
sql/share/italian/errmsg.txt:
  Added max_user_connections
sql/share/japanese/errmsg.txt:
  Added max_user_connections
sql/share/korean/errmsg.txt:
  Added max_user_connections
sql/share/norwegian-ny/errmsg.txt:
  Added max_user_connections
sql/share/norwegian/errmsg.txt:
  Added max_user_connections
sql/share/polish/errmsg.txt:
  Added max_user_connections
sql/share/portuguese/errmsg.txt:
  Added max_user_connections
sql/share/romanian/errmsg.txt:
  Added max_user_connections
sql/share/russian/errmsg.txt:
  Added max_user_connections
sql/share/slovak/errmsg.txt:
  Added max_user_connections
sql/share/spanish/errmsg.txt:
  Added max_user_connections
sql/share/swedish/errmsg.OLD:
  Added max_user_connections
sql/share/swedish/errmsg.txt:
  Added max_user_connections
sql/sql_class.h:
  cleanup
strings/str_test.c:
  Added tests for strxnmov
strings/strxnmov.c:
  Don't reset whole to buffer
parent 808bb002
...@@ -11,7 +11,7 @@ extra_configs="$pentium_configs $debug_configs" ...@@ -11,7 +11,7 @@ extra_configs="$pentium_configs $debug_configs"
# Use the debug version if it exists # Use the debug version if it exists
if test -d /usr/local/BerkeleyDB-dbug/ if test -d /usr/local/BerkeleyDB-dbug/
then then
extra_configs="$extra_configs --with-berkeley-db=/usr/local/BerkeleyDB-dbug/" extra_configs="$extra_configs --with-berkeley-db=/usr/local/BerkeleyDB-dbug/ --with-innobase"
fi fi
. "$path/FINISH.sh" . "$path/FINISH.sh"
...@@ -203,4 +203,5 @@ ...@@ -203,4 +203,5 @@
#define ER_BAD_SLAVE 1200 #define ER_BAD_SLAVE 1200
#define ER_MASTER_INFO 1201 #define ER_MASTER_INFO 1201
#define ER_SLAVE_THREAD 1202 #define ER_SLAVE_THREAD 1202
#define ER_ERROR_MESSAGES 203 #define ER_TOO_MANY_USER_CONNECTIONS 1203
#define ER_ERROR_MESSAGES 204
# Process this file with autoconf to produce a configure script # Process this file with autoconf to produce a configure script
AC_INIT(./os/os0file.c) AC_INIT
AM_MAINTAINER_MODE
AM_CONFIG_HEADER(ib_config.h) AM_CONFIG_HEADER(ib_config.h)
AM_INIT_AUTOMAKE(ib, 0.90) AM_INIT_AUTOMAKE(ib, 0.90)
AC_PROG_CC AC_PROG_CC
......
...@@ -9,6 +9,7 @@ Created 5/7/1996 Heikki Tuuri ...@@ -9,6 +9,7 @@ Created 5/7/1996 Heikki Tuuri
#ifndef lock0types_h #ifndef lock0types_h
#define lock0types_h #define lock0types_h
#define lock_t ib_lock_t
typedef struct lock_struct lock_t; typedef struct lock_struct lock_t;
typedef struct lock_sys_struct lock_sys_t; typedef struct lock_sys_struct lock_sys_t;
......
...@@ -25,8 +25,8 @@ struct os_event_struct { ...@@ -25,8 +25,8 @@ struct os_event_struct {
fields */ fields */
ibool is_set; /* this is TRUE if the next mutex is ibool is_set; /* this is TRUE if the next mutex is
not reserved */ not reserved */
os_fast_mutex_t wait_mutex; /* this mutex is used in waiting for pthread_cond_t cond_var; /* condition variable is used in
the event */ waiting for the event */
}; };
typedef struct os_event_struct os_event_struct_t; typedef struct os_event_struct os_event_struct_t;
typedef os_event_struct_t* os_event_t; typedef os_event_struct_t* os_event_t;
...@@ -190,9 +190,9 @@ os_fast_mutex_free( ...@@ -190,9 +190,9 @@ os_fast_mutex_free(
/*===============*/ /*===============*/
os_fast_mutex_t* fast_mutex); /* in: mutex to free */ os_fast_mutex_t* fast_mutex); /* in: mutex to free */
#endif #endif
#ifndef UNIV_NONINL #ifndef UNIV_NONINL
#include "os0sync.ic" #include "os0sync.ic"
#endif #endif
#endif #endif
...@@ -9,6 +9,7 @@ Created 9/5/1995 Heikki Tuuri ...@@ -9,6 +9,7 @@ Created 9/5/1995 Heikki Tuuri
#ifndef sync0types_h #ifndef sync0types_h
#define sync0types_h #define sync0types_h
#define mutex_t ib_mutex_t
typedef struct mutex_struct mutex_t; typedef struct mutex_struct mutex_t;
......
...@@ -316,8 +316,11 @@ os_file_create( ...@@ -316,8 +316,11 @@ os_file_create(
UT_NOT_USED(purpose); UT_NOT_USED(purpose);
if (create_mode == OS_FILE_CREATE) { if (create_mode == OS_FILE_CREATE) {
#ifndef S_IRWXU
file = open(name, create_flag);
#else
file = open(name, create_flag, S_IRWXU | S_IRWXG | S_IRWXO); file = open(name, create_flag, S_IRWXU | S_IRWXG | S_IRWXO);
#endif
} else { } else {
file = open(name, create_flag); file = open(name, create_flag);
} }
......
...@@ -56,6 +56,9 @@ Created 2/16/1996 Heikki Tuuri ...@@ -56,6 +56,9 @@ Created 2/16/1996 Heikki Tuuri
#include "srv0start.h" #include "srv0start.h"
#include "que0que.h" #include "que0que.h"
ibool srv_is_being_started = FALSE;
ibool srv_was_started = FALSE;
ibool measure_cont = FALSE; ibool measure_cont = FALSE;
os_file_t files[1000]; os_file_t files[1000];
...@@ -443,6 +446,8 @@ innobase_start_or_create_for_mysql(void) ...@@ -443,6 +446,8 @@ innobase_start_or_create_for_mysql(void)
log_do_write = TRUE; log_do_write = TRUE;
/* yydebug = TRUE; */ /* yydebug = TRUE; */
srv_is_being_started = TRUE;
os_aio_use_native_aio = srv_use_native_aio; os_aio_use_native_aio = srv_use_native_aio;
err = srv_boot(); err = srv_boot();
...@@ -676,6 +681,9 @@ innobase_start_or_create_for_mysql(void) ...@@ -676,6 +681,9 @@ innobase_start_or_create_for_mysql(void)
thread_ids + 2 + SRV_MAX_N_IO_THREADS); thread_ids + 2 + SRV_MAX_N_IO_THREADS);
fprintf(stderr, "Innobase: Started\n"); fprintf(stderr, "Innobase: Started\n");
srv_was_started = TRUE;
srv_is_being_started = FALSE;
sync_order_checks_on = TRUE; sync_order_checks_on = TRUE;
/* buf_debug_prints = TRUE; */ /* buf_debug_prints = TRUE; */
...@@ -691,6 +699,14 @@ innobase_shutdown_for_mysql(void) ...@@ -691,6 +699,14 @@ innobase_shutdown_for_mysql(void)
/*=============================*/ /*=============================*/
/* out: DB_SUCCESS or error code */ /* out: DB_SUCCESS or error code */
{ {
if (!srv_was_started) {
if (srv_is_being_started) {
fprintf(stderr,
"Innobase: Warning: shutting down not properly started database\n");
}
return(DB_SUCCESS);
}
/* Flush buffer pool to disk, write the current lsn to /* Flush buffer pool to disk, write the current lsn to
the tablespace header(s), and copy all log data to archive */ the tablespace header(s), and copy all log data to archive */
......
...@@ -172,9 +172,9 @@ convert_error_code_to_mysql( ...@@ -172,9 +172,9 @@ convert_error_code_to_mysql(
return(HA_ERR_TO_BIG_ROW); return(HA_ERR_TO_BIG_ROW);
} else { } else {
assert(0); dbug_assert(0);
return(0); return(-1); // Unknown error
} }
} }
...@@ -194,7 +194,7 @@ check_trx_exists( ...@@ -194,7 +194,7 @@ check_trx_exists(
trx = (trx_t*) thd->transaction.all.innobase_tid; trx = (trx_t*) thd->transaction.all.innobase_tid;
if (trx == NULL) { if (trx == NULL) {
assert(thd != NULL); dbug_assert(thd != NULL);
trx = trx_allocate_for_mysql(); trx = trx_allocate_for_mysql();
thd->transaction.all.innobase_tid = trx; thd->transaction.all.innobase_tid = trx;
...@@ -418,31 +418,41 @@ innobase_init(void) ...@@ -418,31 +418,41 @@ innobase_init(void)
int err; int err;
bool ret; bool ret;
ibool test_bool; ibool test_bool;
static char *current_dir[3];
DBUG_ENTER("innobase_init"); DBUG_ENTER("innobase_init");
test_bool = TRUE; /* Use current_dir if no paths are set */
assert(test_bool == 1); current_dir[0]=FN_CURLIB;
test_bool = FALSE; current_dir[1]=FN_LIBCHAR;
assert(test_bool == 0); current_dir[2]=0;
/* Set Innobase initialization parameters according to the values /* Set Innobase initialization parameters according to the values
read from MySQL .cnf file */ read from MySQL .cnf file */
srv_data_home = innobase_data_home_dir; if (!innobase_data_file_path)
{
fprintf(stderr,"Can't initialize innobase as 'innobase_data_file_path' is not set\n");
DBUG_RETURN(TRUE);
}
srv_data_home = (innobase_data_home_dir ? innobase_data_home_dir :
current_dir);
srv_logs_home = ""; srv_logs_home = "";
srv_arch_dir = innobase_log_arch_dir; srv_arch_dir = (innobase_log_arch_dir ? innobase_log_arch_dir :
current_dir);
ret = innobase_parse_data_file_paths_and_sizes(); ret = innobase_parse_data_file_paths_and_sizes();
if (ret == FALSE) { if (ret == FALSE) {
return(TRUE); DBUG_RETURN(TRUE);
} }
if (!innobase_log_group_home_dir)
innobase_log_group_home_dir= current_dir;
ret = innobase_parse_log_group_home_dirs(); ret = innobase_parse_log_group_home_dirs();
if (ret == FALSE) { if (ret == FALSE) {
return(TRUE); DBUG_RETURN(TRUE);
} }
srv_n_log_groups = (ulint) innobase_mirrored_log_groups; srv_n_log_groups = (ulint) innobase_mirrored_log_groups;
...@@ -466,12 +476,12 @@ innobase_init(void) ...@@ -466,12 +476,12 @@ innobase_init(void)
if (err != DB_SUCCESS) { if (err != DB_SUCCESS) {
return(1); DBUG_RETURN(1);
} }
(void) hash_init(&innobase_open_tables,32,0,0, (void) hash_init(&innobase_open_tables,32,0,0,
(hash_get_key) innobase_get_key,0,0); (hash_get_key) innobase_get_key,0,0);
pthread_mutex_init(&innobase_mutex,NULL); pthread_mutex_init(&innobase_mutex,NULL);
return(0); DBUG_RETURN(0);
} }
/*********************************************************************** /***********************************************************************
...@@ -490,10 +500,10 @@ innobase_end(void) ...@@ -490,10 +500,10 @@ innobase_end(void)
if (err != DB_SUCCESS) { if (err != DB_SUCCESS) {
return(1); DBUG_RETURN(1);
} }
return(0); DBUG_RETURN(0);
} }
/******************************************************************** /********************************************************************
...@@ -666,7 +676,7 @@ normalize_table_name( ...@@ -666,7 +676,7 @@ normalize_table_name(
/* Scan name from the end */ /* Scan name from the end */
ptr = (char*) name + strlen(name) - 1; ptr = strend(name)-1;
while (ptr >= name && *ptr != '\\' && *ptr != '/') { while (ptr >= name && *ptr != '\\' && *ptr != '/') {
ptr--; ptr--;
...@@ -674,7 +684,7 @@ normalize_table_name( ...@@ -674,7 +684,7 @@ normalize_table_name(
name_ptr = ptr + 1; name_ptr = ptr + 1;
assert(ptr > name); dbug_assert(ptr > name);
ptr--; ptr--;
...@@ -770,7 +780,7 @@ ha_innobase::open( ...@@ -770,7 +780,7 @@ ha_innobase::open(
((row_prebuilt_t*)innobase_prebuilt) ((row_prebuilt_t*)innobase_prebuilt)
->clust_index_was_generated = TRUE; ->clust_index_was_generated = TRUE;
assert(key_used_on_scan == MAX_KEY); dbug_assert(key_used_on_scan == MAX_KEY);
} }
/* Init table lock structure */ /* Init table lock structure */
...@@ -911,8 +921,8 @@ innobase_mysql_cmp( ...@@ -911,8 +921,8 @@ innobase_mysql_cmp(
{ {
enum_field_types mysql_tp; enum_field_types mysql_tp;
assert(a_length != UNIV_SQL_NULL); dbug_assert(a_length != UNIV_SQL_NULL);
assert(b_length != UNIV_SQL_NULL); dbug_assert(b_length != UNIV_SQL_NULL);
mysql_tp = (enum_field_types) mysql_type; mysql_tp = (enum_field_types) mysql_type;
...@@ -943,11 +953,11 @@ get_innobase_type_from_mysql_type( ...@@ -943,11 +953,11 @@ get_innobase_type_from_mysql_type(
8 bits: this is used in ibuf and also when DATA_NOT_NULL is 8 bits: this is used in ibuf and also when DATA_NOT_NULL is
ORed to the type */ ORed to the type */
assert((ulint)FIELD_TYPE_STRING < 256); dbug_assert((ulint)FIELD_TYPE_STRING < 256);
assert((ulint)FIELD_TYPE_VAR_STRING < 256); dbug_assert((ulint)FIELD_TYPE_VAR_STRING < 256);
assert((ulint)FIELD_TYPE_DOUBLE < 256); dbug_assert((ulint)FIELD_TYPE_DOUBLE < 256);
assert((ulint)FIELD_TYPE_FLOAT < 256); dbug_assert((ulint)FIELD_TYPE_FLOAT < 256);
assert((ulint)FIELD_TYPE_DECIMAL < 256); dbug_assert((ulint)FIELD_TYPE_DECIMAL < 256);
switch (field->type()) { switch (field->type()) {
case FIELD_TYPE_VAR_STRING: if (field->flags & BINARY_FLAG) { case FIELD_TYPE_VAR_STRING: if (field->flags & BINARY_FLAG) {
...@@ -1072,6 +1082,14 @@ build_template( ...@@ -1072,6 +1082,14 @@ build_template(
templ_type = ROW_MYSQL_WHOLE_ROW; templ_type = ROW_MYSQL_WHOLE_ROW;
} }
if (prebuilt->select_lock_type == LOCK_X) {
/* TODO: should fix the code in sql_update so that we could do
with fetching only the needed columns */
templ_type = ROW_MYSQL_WHOLE_ROW;
}
if (templ_type == ROW_MYSQL_REC_FIELDS) { if (templ_type == ROW_MYSQL_REC_FIELDS) {
if (prebuilt->select_lock_type != LOCK_NONE) { if (prebuilt->select_lock_type != LOCK_NONE) {
...@@ -1288,9 +1306,9 @@ calc_row_difference( ...@@ -1288,9 +1306,9 @@ calc_row_difference(
uint n_fields; uint n_fields;
ulint o_len; ulint o_len;
ulint n_len; ulint n_len;
mysql_byte* o_ptr; byte* o_ptr;
mysql_byte* n_ptr; byte* n_ptr;
mysql_byte* buf; byte* buf;
upd_field_t* ufield; upd_field_t* ufield;
ulint col_type; ulint col_type;
ulint is_unsigned; ulint is_unsigned;
...@@ -1300,7 +1318,7 @@ calc_row_difference( ...@@ -1300,7 +1318,7 @@ calc_row_difference(
n_fields = table->fields; n_fields = table->fields;
/* We use upd_buff to convert changed fields */ /* We use upd_buff to convert changed fields */
buf = upd_buff; buf = (byte*) upd_buff;
for (i = 0; i < n_fields; i++) { for (i = 0; i < n_fields; i++) {
field = table->field[i]; field = table->field[i];
...@@ -1312,8 +1330,8 @@ calc_row_difference( ...@@ -1312,8 +1330,8 @@ calc_row_difference(
goto skip_field; goto skip_field;
} }
o_ptr = old_row + get_field_offset(table, field); o_ptr = (byte*) old_row + get_field_offset(table, field);
n_ptr = new_row + get_field_offset(table, field); n_ptr = (byte*) new_row + get_field_offset(table, field);
o_len = field->pack_length(); o_len = field->pack_length();
n_len = field->pack_length(); n_len = field->pack_length();
...@@ -1353,8 +1371,10 @@ calc_row_difference( ...@@ -1353,8 +1371,10 @@ calc_row_difference(
ufield = uvect->fields + n_changed; ufield = uvect->fields + n_changed;
buf = innobase_convert_and_store_changed_col(ufield, buf = (byte*)
buf, n_ptr, n_len, col_type, innobase_convert_and_store_changed_col(ufield,
(mysql_byte*)buf,
(mysql_byte*)n_ptr, n_len, col_type,
is_unsigned); is_unsigned);
ufield->exp = NULL; ufield->exp = NULL;
ufield->field_no = ufield->field_no =
...@@ -1580,7 +1600,7 @@ ha_innobase::index_read( ...@@ -1580,7 +1600,7 @@ ha_innobase::index_read(
last_match_mode = match_mode; last_match_mode = match_mode;
ret = row_search_for_mysql(buf, mode, prebuilt, match_mode, 0); ret = row_search_for_mysql((byte*) buf, mode, prebuilt, match_mode, 0);
if (ret == DB_SUCCESS) { if (ret == DB_SUCCESS) {
error = 0; error = 0;
...@@ -1690,7 +1710,8 @@ ha_innobase::general_fetch( ...@@ -1690,7 +1710,8 @@ ha_innobase::general_fetch(
DBUG_ENTER("general_fetch"); DBUG_ENTER("general_fetch");
ret = row_search_for_mysql(buf, 0, prebuilt, match_mode, direction); ret = row_search_for_mysql((byte*)buf, 0, prebuilt,
match_mode, direction);
if (ret == DB_SUCCESS) { if (ret == DB_SUCCESS) {
error = 0; error = 0;
...@@ -1935,7 +1956,7 @@ ha_innobase::position( ...@@ -1935,7 +1956,7 @@ ha_innobase::position(
len = store_key_val_for_row(primary_key, (char*) ref, record); len = store_key_val_for_row(primary_key, (char*) ref, record);
} }
assert(len <= ref_length); dbug_assert(len <= ref_length);
ref_stored_len = len; ref_stored_len = len;
} }
...@@ -2174,23 +2195,14 @@ ha_innobase::create( ...@@ -2174,23 +2195,14 @@ ha_innobase::create(
int primary_key_no = -1; int primary_key_no = -1;
KEY* key; KEY* key;
uint i; uint i;
char name2[1000]; char name2[FN_REFLEN];
char norm_name[1000]; char norm_name[FN_REFLEN];
DBUG_ENTER("ha_innobase::create"); DBUG_ENTER("ha_innobase::create");
trx = trx_allocate_for_mysql(); trx = trx_allocate_for_mysql();
name_len = strlen(name); fn_format(name2, name, "", "",2); // Remove the .frm extension
assert(name_len < 1000);
assert(name_len > 4);
memcpy(name2, name, name_len);
/* Erase the .frm end from table name: */
name2[name_len - 4] = '\0';
normalize_table_name(norm_name, name2); normalize_table_name(norm_name, name2);
...@@ -2550,11 +2562,11 @@ ha_innobase::update_table_comment( ...@@ -2550,11 +2562,11 @@ ha_innobase::update_table_comment(
char *str=my_malloc(length + 50,MYF(0)); char *str=my_malloc(length + 50,MYF(0));
if (!str) if (!str)
return comment; return (char*)comment;
sprintf(str,"%s Innobase free: %lu kB", comment,innobase_get_free_space()); sprintf(str,"%s Innobase free: %lu kB", comment,innobase_get_free_space());
return str; return((char*) str);
} }
......
...@@ -231,6 +231,8 @@ bool mysql_rename_tables(THD *thd, TABLE_LIST *table_list); ...@@ -231,6 +231,8 @@ bool mysql_rename_tables(THD *thd, TABLE_LIST *table_list);
bool mysql_change_db(THD *thd,const char *name); bool mysql_change_db(THD *thd,const char *name);
void mysql_parse(THD *thd,char *inBuf,uint length); void mysql_parse(THD *thd,char *inBuf,uint length);
void mysql_init_select(LEX *lex); void mysql_init_select(LEX *lex);
void init_max_user_conn(void);
void free_max_user_conn(void);
pthread_handler_decl(handle_one_connection,arg); pthread_handler_decl(handle_one_connection,arg);
pthread_handler_decl(handle_bootstrap,arg); pthread_handler_decl(handle_bootstrap,arg);
sig_handler end_thread_signal(int sig); sig_handler end_thread_signal(int sig);
......
...@@ -263,7 +263,7 @@ ulong select_full_range_join_count,select_full_join_count; ...@@ -263,7 +263,7 @@ ulong select_full_range_join_count,select_full_join_count;
ulong specialflag=0,opened_tables=0,created_tmp_tables=0, ulong specialflag=0,opened_tables=0,created_tmp_tables=0,
created_tmp_disk_tables=0; created_tmp_disk_tables=0;
ulong max_connections,max_insert_delayed_threads,max_used_connections, ulong max_connections,max_insert_delayed_threads,max_used_connections,
max_connect_errors; max_connect_errors, max_user_connections = 0;
ulong thread_id=1L,current_pid; ulong thread_id=1L,current_pid;
ulong slow_launch_threads = 0; ulong slow_launch_threads = 0;
char mysql_real_data_home[FN_REFLEN], char mysql_real_data_home[FN_REFLEN],
...@@ -295,7 +295,8 @@ pthread_mutex_t LOCK_mysql_create_db, LOCK_Acl, LOCK_open, LOCK_thread_count, ...@@ -295,7 +295,8 @@ pthread_mutex_t LOCK_mysql_create_db, LOCK_Acl, LOCK_open, LOCK_thread_count,
LOCK_error_log, LOCK_error_log,
LOCK_delayed_insert, LOCK_delayed_status, LOCK_delayed_create, LOCK_delayed_insert, LOCK_delayed_status, LOCK_delayed_create,
LOCK_crypt, LOCK_bytes_sent, LOCK_bytes_received, LOCK_crypt, LOCK_bytes_sent, LOCK_bytes_received,
LOCK_binlog_update, LOCK_slave, LOCK_server_id; LOCK_binlog_update, LOCK_slave, LOCK_server_id,
LOCK_user_conn;
pthread_cond_t COND_refresh,COND_thread_count,COND_binlog_update, pthread_cond_t COND_refresh,COND_thread_count,COND_binlog_update,
COND_slave_stopped, COND_slave_start; COND_slave_stopped, COND_slave_start;
...@@ -647,6 +648,7 @@ void clean_up(void) ...@@ -647,6 +648,7 @@ void clean_up(void)
my_free(mysql_tmpdir,MYF(0)); my_free(mysql_tmpdir,MYF(0));
x_free(opt_bin_logname); x_free(opt_bin_logname);
bitmap_free(&temp_pool); bitmap_free(&temp_pool);
free_max_user_conn();
#ifndef __WIN__ #ifndef __WIN__
if (!opt_bootstrap) if (!opt_bootstrap)
(void) my_delete(pidfile_name,MYF(0)); // This may not always exist (void) my_delete(pidfile_name,MYF(0)); // This may not always exist
...@@ -1576,6 +1578,7 @@ int main(int argc, char **argv) ...@@ -1576,6 +1578,7 @@ int main(int argc, char **argv)
(void) pthread_mutex_init(&LOCK_binlog_update, NULL); (void) pthread_mutex_init(&LOCK_binlog_update, NULL);
(void) pthread_mutex_init(&LOCK_slave, NULL); (void) pthread_mutex_init(&LOCK_slave, NULL);
(void) pthread_mutex_init(&LOCK_server_id, NULL); (void) pthread_mutex_init(&LOCK_server_id, NULL);
(void) pthread_mutex_init(&LOCK_user_conn, NULL);
(void) pthread_cond_init(&COND_binlog_update, NULL); (void) pthread_cond_init(&COND_binlog_update, NULL);
(void) pthread_cond_init(&COND_slave_stopped, NULL); (void) pthread_cond_init(&COND_slave_stopped, NULL);
(void) pthread_cond_init(&COND_slave_start, NULL); (void) pthread_cond_init(&COND_slave_start, NULL);
...@@ -1765,6 +1768,8 @@ The server will not act as a slave."); ...@@ -1765,6 +1768,8 @@ The server will not act as a slave.");
} }
if (!opt_noacl) if (!opt_noacl)
(void) grant_init(); (void) grant_init();
if (max_user_connections)
init_max_user_conn();
#ifdef HAVE_DLOPEN #ifdef HAVE_DLOPEN
if (!opt_noacl) if (!opt_noacl)
...@@ -2625,6 +2630,8 @@ CHANGEABLE_VAR changeable_vars[] = { ...@@ -2625,6 +2630,8 @@ CHANGEABLE_VAR changeable_vars[] = {
1024, 4, 8192*1024L, 0, 1 }, 1024, 4, 8192*1024L, 0, 1 },
{ "max_tmp_tables", (long*) &max_tmp_tables, { "max_tmp_tables", (long*) &max_tmp_tables,
32, 1, ~0L, 0, 1 }, 32, 1, ~0L, 0, 1 },
{ "max_user_connections", (long*) &max_user_connections,
0, 1, ~0L, 0, 1 },
{ "max_write_lock_count", (long*) &max_write_lock_count, { "max_write_lock_count", (long*) &max_write_lock_count,
~0L, 1, ~0L, 0, 1 }, ~0L, 1, ~0L, 0, 1 },
{ "myisam_sort_buffer_size", (long*) &myisam_sort_buffer_size, { "myisam_sort_buffer_size", (long*) &myisam_sort_buffer_size,
...@@ -2720,6 +2727,7 @@ struct show_var_st init_vars[]= { ...@@ -2720,6 +2727,7 @@ struct show_var_st init_vars[]= {
{"max_heap_table_size", (char*) &max_heap_table_size, SHOW_LONG}, {"max_heap_table_size", (char*) &max_heap_table_size, SHOW_LONG},
{"max_join_size", (char*) &max_join_size, SHOW_LONG}, {"max_join_size", (char*) &max_join_size, SHOW_LONG},
{"max_sort_length", (char*) &max_item_sort_length, SHOW_LONG}, {"max_sort_length", (char*) &max_item_sort_length, SHOW_LONG},
{"max_user_connections", (char*) &max_user_connections, SHOW_LONG},
{"max_tmp_tables", (char*) &max_tmp_tables, SHOW_LONG}, {"max_tmp_tables", (char*) &max_tmp_tables, SHOW_LONG},
{"max_write_lock_count", (char*) &max_write_lock_count, SHOW_LONG}, {"max_write_lock_count", (char*) &max_write_lock_count, SHOW_LONG},
{"myisam_recover_options", (char*) &myisam_recover_options_str, SHOW_CHAR_PTR}, {"myisam_recover_options", (char*) &myisam_recover_options_str, SHOW_CHAR_PTR},
...@@ -3843,6 +3851,10 @@ static int get_service_parameters() ...@@ -3843,6 +3851,10 @@ static int get_service_parameters()
{ {
SET_CHANGEABLE_VARVAL( "max_connections" ); SET_CHANGEABLE_VARVAL( "max_connections" );
} }
else if ( lstrcmp(szKeyValueName, TEXT("MaxUserConnections")) == 0 )
{
SET_CHANGEABLE_VARVAL( "max_user_connections" );
}
else if ( lstrcmp(szKeyValueName, TEXT("MaxConnectErrors")) == 0 ) else if ( lstrcmp(szKeyValueName, TEXT("MaxConnectErrors")) == 0 )
{ {
SET_CHANGEABLE_VARVAL( "max_connect_errors" ); SET_CHANGEABLE_VARVAL( "max_connect_errors" );
......
...@@ -213,3 +213,4 @@ ...@@ -213,3 +213,4 @@
"The server is not configured as slave, fix in config file or with CHANGE MASTER TO", "The server is not configured as slave, fix in config file or with CHANGE MASTER TO",
"Could not initialize master info structure, check permisions on master.info", "Could not initialize master info structure, check permisions on master.info",
"Could not create slave thread, check system resources", "Could not create slave thread, check system resources",
"User %-.64s has already more than 'max_user_connections' active connections",
...@@ -207,3 +207,4 @@ ...@@ -207,3 +207,4 @@
"The server is not configured as slave, fix in config file or with CHANGE MASTER TO", "The server is not configured as slave, fix in config file or with CHANGE MASTER TO",
"Could not initialize master info structure, check permisions on master.info", "Could not initialize master info structure, check permisions on master.info",
"Could not create slave thread, check system resources", "Could not create slave thread, check system resources",
"User %-.64s has already more than 'max_user_connections' active connections",
...@@ -204,3 +204,4 @@ ...@@ -204,3 +204,4 @@
"The server is not configured as slave, fix in config file or with CHANGE MASTER TO", "The server is not configured as slave, fix in config file or with CHANGE MASTER TO",
"Could not initialize master info structure, check permisions on master.info", "Could not initialize master info structure, check permisions on master.info",
"Could not create slave thread, check system resources", "Could not create slave thread, check system resources",
"User %-.64s has already more than 'max_user_connections' active connections",
...@@ -204,3 +204,4 @@ ...@@ -204,3 +204,4 @@
"The server is not configured as slave, fix in config file or with CHANGE MASTER TO", "The server is not configured as slave, fix in config file or with CHANGE MASTER TO",
"Could not initialize master info structure, check permisions on master.info", "Could not initialize master info structure, check permisions on master.info",
"Could not create slave thread, check system resources", "Could not create slave thread, check system resources",
"User %-.64s has already more than 'max_user_connections' active connections",
...@@ -208,3 +208,4 @@ ...@@ -208,3 +208,4 @@
"The server is not configured as slave, fix in config file or with CHANGE MASTER TO", "The server is not configured as slave, fix in config file or with CHANGE MASTER TO",
"Could not initialize master info structure, check permisions on master.info", "Could not initialize master info structure, check permisions on master.info",
"Could not create slave thread, check system resources", "Could not create slave thread, check system resources",
"User %-.64s has already more than 'max_user_connections' active connections",
...@@ -204,3 +204,4 @@ ...@@ -204,3 +204,4 @@
"The server is not configured as slave, fix in config file or with CHANGE MASTER TO", "The server is not configured as slave, fix in config file or with CHANGE MASTER TO",
"Could not initialize master info structure, check permisions on master.info", "Could not initialize master info structure, check permisions on master.info",
"Could not create slave thread, check system resources", "Could not create slave thread, check system resources",
"User %-.64s has already more than 'max_user_connections' active connections",
...@@ -207,3 +207,4 @@ ...@@ -207,3 +207,4 @@
"The server is not configured as slave, fix in config file or with CHANGE MASTER TO", "The server is not configured as slave, fix in config file or with CHANGE MASTER TO",
"Could not initialize master info structure, check permisions on master.info", "Could not initialize master info structure, check permisions on master.info",
"Could not create slave thread, check system resources", "Could not create slave thread, check system resources",
"User %-.64s has already more than 'max_user_connections' active connections",
...@@ -204,3 +204,4 @@ ...@@ -204,3 +204,4 @@
"The server is not configured as slave, fix in config file or with CHANGE MASTER TO", "The server is not configured as slave, fix in config file or with CHANGE MASTER TO",
"Could not initialize master info structure, check permisions on master.info", "Could not initialize master info structure, check permisions on master.info",
"Could not create slave thread, check system resources", "Could not create slave thread, check system resources",
"User %-.64s has already more than 'max_user_connections' active connections",
...@@ -206,3 +206,4 @@ ...@@ -206,3 +206,4 @@
"The server is not configured as slave, fix in config file or with CHANGE MASTER TO", "The server is not configured as slave, fix in config file or with CHANGE MASTER TO",
"Could not initialize master info structure, check permisions on master.info", "Could not initialize master info structure, check permisions on master.info",
"Could not create slave thread, check system resources", "Could not create slave thread, check system resources",
"User %-.64s has already more than 'max_user_connections' active connections",
...@@ -204,3 +204,4 @@ ...@@ -204,3 +204,4 @@
"The server is not configured as slave, fix in config file or with CHANGE MASTER TO", "The server is not configured as slave, fix in config file or with CHANGE MASTER TO",
"Could not initialize master info structure, check permisions on master.info", "Could not initialize master info structure, check permisions on master.info",
"Could not create slave thread, check system resources", "Could not create slave thread, check system resources",
"User %-.64s has already more than 'max_user_connections' active connections",
...@@ -206,3 +206,4 @@ ...@@ -206,3 +206,4 @@
"The server is not configured as slave, fix in config file or with CHANGE MASTER TO", "The server is not configured as slave, fix in config file or with CHANGE MASTER TO",
"Could not initialize master info structure, check permisions on master.info", "Could not initialize master info structure, check permisions on master.info",
"Could not create slave thread, check system resources", "Could not create slave thread, check system resources",
"User %-.64s has already more than 'max_user_connections' active connections",
...@@ -204,3 +204,4 @@ ...@@ -204,3 +204,4 @@
"The server is not configured as slave, fix in config file or with CHANGE MASTER TO", "The server is not configured as slave, fix in config file or with CHANGE MASTER TO",
"Could not initialize master info structure, check permisions on master.info", "Could not initialize master info structure, check permisions on master.info",
"Could not create slave thread, check system resources", "Could not create slave thread, check system resources",
"User %-.64s has already more than 'max_user_connections' active connections",
...@@ -206,3 +206,4 @@ ...@@ -206,3 +206,4 @@
"The server is not configured as slave, fix in config file or with CHANGE MASTER TO", "The server is not configured as slave, fix in config file or with CHANGE MASTER TO",
"Could not initialize master info structure, check permisions on master.info", "Could not initialize master info structure, check permisions on master.info",
"Could not create slave thread, check system resources", "Could not create slave thread, check system resources",
"User %-.64s has already more than 'max_user_connections' active connections",
...@@ -206,3 +206,4 @@ ...@@ -206,3 +206,4 @@
"The server is not configured as slave, fix in config file or with CHANGE MASTER TO", "The server is not configured as slave, fix in config file or with CHANGE MASTER TO",
"Could not initialize master info structure, check permisions on master.info", "Could not initialize master info structure, check permisions on master.info",
"Could not create slave thread, check system resources", "Could not create slave thread, check system resources",
"User %-.64s has already more than 'max_user_connections' active connections",
...@@ -208,3 +208,4 @@ ...@@ -208,3 +208,4 @@
"The server is not configured as slave, fix in config file or with CHANGE MASTER TO", "The server is not configured as slave, fix in config file or with CHANGE MASTER TO",
"Could not initialize master info structure, check permisions on master.info", "Could not initialize master info structure, check permisions on master.info",
"Could not create slave thread, check system resources", "Could not create slave thread, check system resources",
"User %-.64s has already more than 'max_user_connections' active connections",
...@@ -204,3 +204,4 @@ ...@@ -204,3 +204,4 @@
"The server is not configured as slave, fix in config file or with CHANGE MASTER TO", "The server is not configured as slave, fix in config file or with CHANGE MASTER TO",
"Could not initialize master info structure, check permisions on master.info", "Could not initialize master info structure, check permisions on master.info",
"Could not create slave thread, check system resources", "Could not create slave thread, check system resources",
"User %-.64s has already more than 'max_user_connections' active connections",
...@@ -208,3 +208,4 @@ ...@@ -208,3 +208,4 @@
"The server is not configured as slave, fix in config file or with CHANGE MASTER TO", "The server is not configured as slave, fix in config file or with CHANGE MASTER TO",
"Could not initialize master info structure, check permisions on master.info", "Could not initialize master info structure, check permisions on master.info",
"Could not create slave thread, check system resources", "Could not create slave thread, check system resources",
"User %-.64s has already more than 'max_user_connections' active connections",
...@@ -207,3 +207,4 @@ ...@@ -207,3 +207,4 @@
" slave, CHANGE MASTER TO", " slave, CHANGE MASTER TO",
" master info, persmissions master.info", " master info, persmissions master.info",
" SLAVE, ", " SLAVE, ",
"User %-.64s has already more than 'max_user_connections' active connections",
...@@ -212,3 +212,4 @@ ...@@ -212,3 +212,4 @@
"The server is not configured as slave, fix in config file or with CHANGE MASTER TO", "The server is not configured as slave, fix in config file or with CHANGE MASTER TO",
"Could not initialize master info structure, check permisions on master.info", "Could not initialize master info structure, check permisions on master.info",
"Could not create slave thread, check system resources", "Could not create slave thread, check system resources",
"User %-.64s has already more than 'max_user_connections' active connections",
...@@ -205,3 +205,4 @@ ...@@ -205,3 +205,4 @@
"The server is not configured as slave, fix in config file or with CHANGE MASTER TO", "The server is not configured as slave, fix in config file or with CHANGE MASTER TO",
"Could not initialize master info structure, check permisions on master.info", "Could not initialize master info structure, check permisions on master.info",
"Could not create slave thread, check system resources", "Could not create slave thread, check system resources",
"User %-.64s has already more than 'max_user_connections' active connections",
...@@ -199,3 +199,9 @@ ...@@ -199,3 +199,9 @@
"Tabell '%-.64s' är crashad och senast (automatiska?) reparation misslyckades", "Tabell '%-.64s' är crashad och senast (automatiska?) reparation misslyckades",
"Warning: Några icke transaktionella tabeller kunde inte återställas vid ROLLBACK", "Warning: Några icke transaktionella tabeller kunde inte återställas vid ROLLBACK",
"Transaktionen krävde mera än 'max_binlog_cache_size' minne. Utöka denna mysqld variabel och försök på nytt", "Transaktionen krävde mera än 'max_binlog_cache_size' minne. Utöka denna mysqld variabel och försök på nytt",
"Denna operation kan inte göras under replikering; Gör SLAVE STOP först",
"Denna operation kan endast göras under replikering; Konfigurera slaven och gör SLAVE START",
"Servern är inte konfigurerade som en replikations slav. Ändra konfigurationsfilen eller gör CHANGE MASTER TO",
"Kunde inte initializera replications-strukturerna. Kontrollera privilegerna för 'master.info'",
"Kunde inte starta en tråd för replikering",
"Användare '%-.64s' har redan 'max_user_connections' aktiva inloggningar",
...@@ -199,8 +199,9 @@ ...@@ -199,8 +199,9 @@
"Tabell '%-.64s' är crashad och senast (automatiska?) reparation misslyckades", "Tabell '%-.64s' är crashad och senast (automatiska?) reparation misslyckades",
"Warning: Några icke transaktionella tabeller kunde inte återställas vid ROLLBACK", "Warning: Några icke transaktionella tabeller kunde inte återställas vid ROLLBACK",
"Transaktionen krävde mera än 'max_binlog_cache_size' minne. Utöka denna mysqld variabel och försök på nytt", "Transaktionen krävde mera än 'max_binlog_cache_size' minne. Utöka denna mysqld variabel och försök på nytt",
"This operation cannot be performed with a running slave, run SLAVE STOP first", "Denna operation kan inte göras under replikering; Gör SLAVE STOP först",
"This operation requires a running slave, configure slave and do SLAVE START", "Denna operation kan endast göras under replikering; Konfigurera slaven och gör SLAVE START",
"The server is not configured as slave, fix in config file or with CHANGE MASTER TO", "Servern är inte konfigurerade som en replikations slav. Ändra konfigurationsfilen eller gör CHANGE MASTER TO",
"Could not initialize master info structure, check permisions on master.info", "Kunde inte initializera replications-strukturerna. Kontrollera privilegerna för 'master.info'",
"Could not create slave thread, check system resources", "Kunde inte starta en tråd för replikering",
"Användare '%-.64s' har redan 'max_user_connections' aktiva inloggningar",
...@@ -265,14 +265,14 @@ class THD :public ilink { ...@@ -265,14 +265,14 @@ class THD :public ilink {
pthread_t real_id; pthread_t real_id;
uint current_tablenr,tmp_table,cond_count,col_access,query_length; uint current_tablenr,tmp_table,cond_count,col_access,query_length;
uint server_status,open_options; uint server_status,open_options;
bool slave_thread;
char scramble[9]; char scramble[9];
bool slave_thread;
bool set_query_id,locked,count_cuted_fields,some_tables_deleted; bool set_query_id,locked,count_cuted_fields,some_tables_deleted;
bool no_errors, allow_sum_func, password, fatal_error; bool no_errors, allow_sum_func, password, fatal_error;
bool query_start_used,last_insert_id_used,insert_id_used; bool query_start_used,last_insert_id_used,insert_id_used;
bool volatile killed,bootstrap;
bool system_thread,in_lock_tables,global_read_lock; bool system_thread,in_lock_tables,global_read_lock;
bool query_error; bool query_error, bootstrap;
bool volatile killed;
LOG_INFO* current_linfo; LOG_INFO* current_linfo;
// if we do a purge of binary logs, log index info of the threads // if we do a purge of binary logs, log index info of the threads
// that are currently reading it needs to be adjusted. To do that // that are currently reading it needs to be adjusted. To do that
......
...@@ -33,13 +33,13 @@ ...@@ -33,13 +33,13 @@
static char from_buff[100],to_buff[100]; static char from_buff[100],to_buff[100];
static my_string from,to; static my_string from,to;
static int errors,tests; static int errors,tests;
static int test_strarg(char *name,...); static int test_strarg(const char *name,...);
static void init_strings (void); /* Init from and to */ static void init_strings (void); /* Init from and to */
void test_arg (my_string message,long func_value,long value); void test_arg (const char *message,long func_value,long value);
int compare_buff (my_string message,my_string b1,my_string b2,int length, int compare_buff(const char *message,my_string b1,my_string b2,int length,
pchar fill, pchar prefill); pchar fill, pchar prefill);
int my_test(int a) static int my_test(int a)
{ {
return a ? 1 : 0; return a ? 1 : 0;
} }
...@@ -116,6 +116,14 @@ int main(void) ...@@ -116,6 +116,14 @@ int main(void)
test_strarg("strxmov(to,from,\"!!\",NullS)",strxmov(to,from,"!!",NullS),to+F_LEN+2,F_LEN,F_CHAR,2,'!',0,0,0); test_strarg("strxmov(to,from,\"!!\",NullS)",strxmov(to,from,"!!",NullS),to+F_LEN+2,F_LEN,F_CHAR,2,'!',0,0,0);
test_strarg("strxmov(to,NullS)",strxmov(to,NullS),to,1,0,0,0); test_strarg("strxmov(to,NullS)",strxmov(to,NullS),to,1,0,0,0);
test_strarg("strxmov(to,from,from,from,from,from,'!!',from,NullS)",strxmov(to,from,from,from,from,from,"!!",from,NullS),to+F_LEN*6+2,F_LEN,F_CHAR,F_LEN,F_CHAR,F_LEN,F_CHAR,F_LEN,F_CHAR,F_LEN,F_CHAR,2,'!',F_LEN,F_CHAR,1,0,0,0); test_strarg("strxmov(to,from,from,from,from,from,'!!',from,NullS)",strxmov(to,from,from,from,from,from,"!!",from,NullS),to+F_LEN*6+2,F_LEN,F_CHAR,F_LEN,F_CHAR,F_LEN,F_CHAR,F_LEN,F_CHAR,F_LEN,F_CHAR,2,'!',F_LEN,F_CHAR,1,0,0,0);
test_strarg("strxnmov(to,100,from,\"!!\",NullS)",strxnmov(to,100,from,"!!",NullS),to+F_LEN+2,F_LEN,F_CHAR,2,'!',0,0,0);
test_strarg("strxnmov(to,2,NullS)",strxnmov(to,2,NullS),to,1,0,0,0);
test_strarg("strxnmov(to,100,from,from,from,from,from,'!!',from,NullS)",strxnmov(to,100,from,from,from,from,from,"!!",from,NullS),to+F_LEN*6+2,F_LEN,F_CHAR,F_LEN,F_CHAR,F_LEN,F_CHAR,F_LEN,F_CHAR,F_LEN,F_CHAR,2,'!',F_LEN,F_CHAR,1,0,0,0);
test_strarg("strxnmov(to,2,\"!!!\",NullS)",strxnmov(to,2,"!!!",NullS),to+2,2,'!',0,0,0);
test_strarg("strxnmov(to,2,\"!!\",NullS)",strxnmov(to,2,"!!","xx",NullS),to+2,2,'!',0,0,0);
test_strarg("strxnmov(to,2,\"!\",\"x\",\"y\",NullS)",strxnmov(to,2,"!","x","y",NullS),to+2,1,'!',1,'x',0,0,0);
test_strarg("bchange(to,2,from,4,6)",(bchange(to,2,from,4,6),0L),INT_MAX32, test_strarg("bchange(to,2,from,4,6)",(bchange(to,2,from,4,6),0L),INT_MAX32,
4,F_CHAR,2,T_CHAR,0,0); 4,F_CHAR,2,T_CHAR,0,0);
...@@ -156,7 +164,7 @@ void init_strings(void) ...@@ -156,7 +164,7 @@ void init_strings(void)
/* Test that function return rigth value */ /* Test that function return rigth value */
void test_arg(my_string message, long int func_value, long int value) void test_arg(const char *message, long int func_value, long int value)
{ {
tests++; tests++;
printf("testing '%s'\n",message); printf("testing '%s'\n",message);
...@@ -169,7 +177,7 @@ void test_arg(my_string message, long int func_value, long int value) ...@@ -169,7 +177,7 @@ void test_arg(my_string message, long int func_value, long int value)
/* Test function return value and from and to arrays */ /* Test function return value and from and to arrays */
static int test_strarg(char *message,...) static int test_strarg(const char *message,...)
{ {
long func_value,value; long func_value,value;
int error,length; int error,length;
...@@ -223,7 +231,7 @@ static int test_strarg(char *message,...) ...@@ -223,7 +231,7 @@ static int test_strarg(char *message,...)
/* test if function made right value */ /* test if function made right value */
int compare_buff(my_string message, my_string b1, my_string b2, int length, int compare_buff(const char *message, my_string b1, my_string b2, int length,
pchar fill, pchar prefill) pchar fill, pchar prefill)
{ {
int i,error=0; int i,error=0;
...@@ -256,6 +264,8 @@ int compare_buff(my_string message, my_string b1, my_string b2, int length, ...@@ -256,6 +264,8 @@ int compare_buff(my_string message, my_string b1, my_string b2, int length,
/* These are here to be loaded and examined */ /* These are here to be loaded and examined */
extern void dummy_functions(void);
void dummy_functions(void) void dummy_functions(void)
{ {
VOID(memchr(from,'a',5)); VOID(memchr(from,'a',5));
......
...@@ -15,9 +15,9 @@ ...@@ -15,9 +15,9 @@
and NOT to use 0, as on some machines 0 is not the same size as a and NOT to use 0, as on some machines 0 is not the same size as a
character pointer, or not the same bit pattern as NullS. character pointer, or not the same bit pattern as NullS.
Note: strxnmov is like strnmov in that it always moves EXACTLY len Note: strxnmov is like strnmov in that it moves up to len
characters; dst will be padded on the right with NUL characters as characters; dst will be padded on the right with one NUL characters if
needed. strxncpy does the same. strxncat, like strncat, does NOT. needed.
*/ */
#include <global.h> #include <global.h>
...@@ -27,20 +27,22 @@ ...@@ -27,20 +27,22 @@
char *strxnmov(char *dst,uint len, const char *src, ...) char *strxnmov(char *dst,uint len, const char *src, ...)
{ {
va_list pvar; va_list pvar;
char *result; char *end_of_dst=dst+len;
va_start(pvar,src); va_start(pvar,src);
while (src != NullS) { while (src != NullS)
do if (len-- == 0) {
do
{ {
va_end(pvar); if (dst == end_of_dst)
return dst; goto end;
} }
while ((*dst++ = *src++) != 0); while ((*dst++ = *src++));
dst--; dst--;
src = va_arg(pvar, char *); src = va_arg(pvar, char *);
} }
for (result= dst; len-- != 0; *dst++ = 0) ; *dst=0;
end:
va_end(pvar); va_end(pvar);
return result; return dst;
} }
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