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Merge branch '798-dlz-build_querystring-broken' into 'master'

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Resolve "DLZ build_querystring broken"

Closes #798

See merge request isc-projects/bind9!1281
This commit is contained in:
Mark Andrews
2019-01-09 04:21:26 -05:00
parent f9d9c5686d 4c7e6e0799
commit f8965a5588
3 changed files with 28 additions and 22 deletions
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3
CHANGES
View File

@@ -1,3 +1,6 @@
5129. [contrib] sdlz_helper.c:build_querylist was not properly
splitting the query string. [GL #798]
5128. [bug] Refreshkeytime was not being updated for managed
keys zones. [GL #784]

2
contrib/dlz/drivers/include/dlz/sdlz_helper.h
View File

@@ -59,7 +59,7 @@ typedef struct driverinstance driverinstance_t;
struct query_segment {
void *sql;
unsigned int strlen;
bool direct;
bool direct;
ISC_LINK(query_segment_t) link;
};

45
contrib/dlz/drivers/sdlz_helper.c
View File

@@ -106,11 +106,11 @@ build_querylist(isc_mem_t *mctx, const char *query_str, char **zone,
bool foundzone = false;
bool foundrecord = false;
bool foundclient = false;
char *free_me = NULL;
char *temp_str = NULL;
char *right_str = NULL;
query_list_t *tql;
query_segment_t *tseg = NULL;
char *last;
char *last = NULL;
REQUIRE(querylist != NULL && *querylist == NULL);
REQUIRE(mctx != NULL);
@@ -135,15 +135,24 @@ build_querylist(isc_mem_t *mctx, const char *query_str, char **zone,
ISC_LIST_INIT(*tql);
/* make a copy of query_str so we can chop it up */
temp_str = right_str = isc_mem_strdup(mctx, query_str);
free_me = temp_str = isc_mem_strdup(mctx, query_str);
/* couldn't make a copy, problem!! */
if (right_str == NULL) {
if (temp_str == NULL) {
result = ISC_R_NOMEMORY;
goto cleanup;
}
/* loop through the string and chop it up */
while (right_str != NULL) {
for (;;) {
/*
* Split string into tokens at '$'.
*/
const char *sql = strtok_r(temp_str, "$", &last);
if (sql == NULL) {
break;
}
temp_str = NULL;
/* allocate memory for tseg */
tseg = isc_mem_get(mctx, sizeof(query_segment_t));
if (tseg == NULL) { /* no memory, clean everything up. */
@@ -157,13 +166,7 @@ build_querylist(isc_mem_t *mctx, const char *query_str, char **zone,
/* append the query segment to the list */
ISC_LIST_APPEND(*tql, tseg, link);
/*
* split string at the first "$". set query segment to
* left portion
*/
last = NULL;
tseg->sql = isc_mem_strdup(mctx,
strtok_r(right_str, "$", &last));
tseg->sql = isc_mem_strdup(mctx, sql);
if (tseg->sql == NULL) {
/* no memory, clean everything up. */
result = ISC_R_NOMEMORY;
@@ -181,7 +184,7 @@ build_querylist(isc_mem_t *mctx, const char *query_str, char **zone,
*/
isc_mem_free(mctx, tseg->sql);
/* set tseg->sql to in-direct zone string */
tseg->sql = (char**) zone;
tseg->sql = zone;
tseg->strlen = 0;
/* tseg->sql points in-directly to a string */
tseg->direct = false;
@@ -194,9 +197,9 @@ build_querylist(isc_mem_t *mctx, const char *query_str, char **zone,
*/
isc_mem_free(mctx, tseg->sql);
/* set tseg->sql to in-direct record string */
tseg->sql = (char**) record;
tseg->sql = record;
tseg->strlen = 0;
/* tseg->sql points in-directly poinsts to a string */
/* tseg->sql points in-directly points to a string */
tseg->direct = false;
foundrecord = true;
/* check if we encountered "$client$" token */
@@ -207,16 +210,16 @@ build_querylist(isc_mem_t *mctx, const char *query_str, char **zone,
*/
isc_mem_free(mctx, tseg->sql);
/* set tseg->sql to in-direct record string */
tseg->sql = (char**) client;
tseg->sql = client;
tseg->strlen = 0;
/* tseg->sql points in-directly poinsts to a string */
/* tseg->sql points in-directly points to a string */
tseg->direct = false;
foundclient = true;
}
}
/* we don't need temp_str any more */
isc_mem_free(mctx, temp_str);
isc_mem_free(mctx, free_me);
/*
* add checks later to verify zone and record are found if
* necessary.
@@ -259,9 +262,9 @@ build_querylist(isc_mem_t *mctx, const char *query_str, char **zone,
return (ISC_R_SUCCESS);
cleanup:
/* get rid of temp_str */
if (temp_str != NULL)
isc_mem_free(mctx, temp_str);
/* get rid of free_me */
if (free_me != NULL)
isc_mem_free(mctx, free_me);
flag_fail:
/* get rid of what was build of the query list */