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Fix LCS object type checking. Related to #7379.

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This commit is contained in:
antirez 2020-06-12 12:34:44 +02:00
parent a66298e6f1
commit 1055398849
1 changed files with 17 additions and 10 deletions
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27
src/t_string.c
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@ -516,13 +516,13 @@ void stralgoLCS(client *c) {
withmatchlen = 1;
} else if (!strcasecmp(opt,"MINMATCHLEN") && moreargs) {
if (getLongLongFromObjectOrReply(c,c->argv[j+1],&minmatchlen,NULL)
!= C_OK) goto clean_up_obj;
!= C_OK) goto cleanup;
if (minmatchlen < 0) minmatchlen = 0;
j++;
} else if (!strcasecmp(opt,"STRINGS") && moreargs > 1) {
if (a != NULL) {
addReplyError(c,"Either use STRINGS or KEYS");
goto clean_up_obj;
goto cleanup;
}
a = c->argv[j+1]->ptr;
b = c->argv[j+2]->ptr;
@ -530,13 +530,20 @@ void stralgoLCS(client *c) {
} else if (!strcasecmp(opt,"KEYS") && moreargs > 1) {
if (a != NULL) {
addReplyError(c,"Either use STRINGS or KEYS");
goto clean_up_obj;
goto cleanup;
}
obja = lookupKeyRead(c->db,c->argv[j+1]);
objb = lookupKeyRead(c->db,c->argv[j+2]);
if ( !(obja->type == OBJ_STRING) || !(objb->type == OBJ_STRING) ) {
addReplyError(c,"Object associate with KEYS option should only be string type");
goto clean_up_obj;
if ((obja && obja->type != OBJ_STRING) ||
(objb && objb->type != OBJ_STRING))
{
addReplyError(c,
"The specified keys must contain string values");
/* Don't cleanup the objects, we need to do that
* only after callign getDecodedObject(). */
obja = NULL;
objb = NULL;
goto cleanup;
}
obja = obja ? getDecodedObject(obja) : createStringObject("",0);
objb = objb ? getDecodedObject(objb) : createStringObject("",0);
@ -545,7 +552,7 @@ void stralgoLCS(client *c) {
j += 2;
} else {
addReply(c,shared.syntaxerr);
goto clean_up_obj;
goto cleanup;
}
}
@ -553,12 +560,12 @@ void stralgoLCS(client *c) {
if (a == NULL) {
addReplyError(c,"Please specify two strings: "
"STRINGS or KEYS options are mandatory");
goto clean_up_obj;
goto cleanup;
} else if (getlen && getidx) {
addReplyError(c,
"If you want both the length and indexes, please "
"just use IDX.");
goto clean_up_obj;
goto cleanup;
}
/* Compute the LCS using the vanilla dynamic programming technique of
@ -696,7 +703,7 @@ void stralgoLCS(client *c) {
sdsfree(result);
zfree(lcs);
clean_up_obj:
cleanup:
if (obja) decrRefCount(obja);
if (objb) decrRefCount(objb);
return;