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Fix for Bug #466, http://bugs.skysql.com/show_bug.cgi?id=466

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hintparser.c:hint_parser:when string token is found, create a copy of the token value instead of copying the its address because token will be freed before the value is used.
	hint_next_token:didn't recognize '=' as TOK_EQUAL, fixed that. Read the code.
hint.c:hint_create_parameter: copy the pointer to parameter name instead of creating copy of it - pname is already copied from token before the call
readwritesplit.c:routeQuery:Hint name was copied when hint value was supposed to be copied, thus resulting invalid value for hinted parameter. Also fixed server type in trace log command.
skygw_debug.h:Added string for Relay server to macro STRSRVSTATUS.
This commit is contained in:
VilhoRaatikka
2014-08-06 16:39:22 +03:00
parent cf38dad43a
commit b72e80b464
4 changed files with 29 additions and 19 deletions
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2
server/core/hint.c
View File

@ -115,7 +115,7 @@ HINT *hint;
return head;
hint->next = head;
hint->type = HINT_PARAMETER;
hint->data = strdup(pname);
hint->data = pname;
hint->value = strdup(value);
return hint;
}

29
server/modules/filter/hint/hintparser.c
View File

@ -255,7 +255,7 @@ HINT_MODE mode = HM_EXECUTE;
break;
case TOK_STRING:
state = HS_NAME;
lvalue = tok->value;
lvalue = strdup(tok->value);
break;
case TOK_STOP:
/* Action: pop active hint */
@ -451,31 +451,42 @@ HINT_TOKEN *tok;
dest = word;
while (*ptr < (char *)((*buf)->end) || (*buf)->next)
{
if (inword && inquote == '\0' &&
(**ptr == '=' || isspace(**ptr)))
{
inword = 0;
break;
}
/** word ends, don't move ptr but return with read word */
if (inword && inquote == '\0' &&
(isspace(**ptr) || **ptr == '='))
{
inword = 0;
break;
}
/** found '=', move ptr and return with '=' */
else if (!inword && inquote == '\0' && **ptr == '=')
{
*dest = **ptr;
*dest++;
(*ptr)++;
break;
}
else if (**ptr == '\'' && inquote == '\'')
inquote = '\0';
else if (**ptr == '\'')
inquote = **ptr;
/** Any other character which belongs to the word, move ahead */
else if (inword || (isspace(**ptr) == 0))
{
*dest++ = **ptr;
inword = 1;
}
(*ptr)++;
if (*ptr > (char *)((*buf)->end) && (*buf)->next)
{
*buf = (*buf)->next;
*ptr = (*buf)->start;
}
if (dest - word > 98)
break;
}
} /*< while */
*dest = 0;
/* We now have a word in the local word, check to see if it is a

6
server/modules/routing/readwritesplit/readwritesplit.c
View File

@ -1417,7 +1417,7 @@ static int routeQuery(
"max_slave_replication_lag",
strlen("max_slave_replication_lag")) == 0))
{
int val = (int) strtol((char *)hint->data,
int val = (int) strtol((char *)hint->value,
(char **)NULL, 10);
if (val != 0 || errno == 0)
@ -2308,9 +2308,7 @@ static bool select_connect_backend_servers(
LOGIF(LT, (skygw_log_write(
LOGFILE_TRACE,
"Selected %s in \t%s:%d",
(btype == BE_MASTER ? "master" :
(btype == BE_SLAVE ? "slave" :
"unknown node type")),
STRSRVSTATUS(b->backend_server),
b->backend_server->name,
b->backend_server->port)));
}

11
utils/skygw_debug.h
View File

@ -232,12 +232,13 @@ typedef enum skygw_chk_t {
((c) == LEAST_BEHIND_MASTER ? "LEAST_BEHIND_MASTER" : \
((c) == LEAST_CURRENT_OPERATIONS ? "LEAST_CURRENT_OPERATIONS" : "Unknown criteria")))))
#define STRSRVSTATUS(s) ((SERVER_IS_RUNNING(s) && SERVER_IS_MASTER(s)) ? "RUNNING MASTER" : \
((SERVER_IS_RUNNING(s) && SERVER_IS_SLAVE(s)) ? "RUNNING SLAVE" : \
((SERVER_IS_RUNNING(s) && SERVER_IS_JOINED(s)) ? "RUNNING JOINED" : \
((SERVER_IS_RUNNING(s) && SERVER_IS_NDB(s)) ? "RUNNING NDB" : \
#define STRSRVSTATUS(s) (SERVER_IS_MASTER(s) ? "RUNNING MASTER" : \
(SERVER_IS_SLAVE(s) ? "RUNNING SLAVE" : \
(SERVER_IS_JOINED(s) ? "RUNNING JOINED" : \
(SERVER_IS_NDB(s) ? "RUNNING NDB" : \
((SERVER_IS_RUNNING(s) && SERVER_IN_MAINT(s)) ? "RUNNING MAINTENANCE" : \
(SERVER_IS_RUNNING(s) ? "RUNNING (only)" : "NO STATUS"))))))
(SERVER_IS_RELAY_SERVER(s) ? "RUNNING RELAY" : \
(SERVER_IS_RUNNING(s) ? "RUNNING (only)" : "NO STATUS")))))))
#define CHK_MLIST(l) { \
ss_info_dassert((l->mlist_chk_top == CHK_NUM_MLIST && \