https://bugs.openldap.org/show_bug.cgi?id=10060
Issue ID: 10060
Summary: libldap: ldap_result return value differs depending on
if a search response is already in the response list
or not
Product: OpenLDAP
Version: unspecified
Hardware: All
OS: All
Status: UNCONFIRMED
Keywords: needs_review
Severity: normal
Priority: ---
Component: libraries
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
ldap_result(3) is defined here:
https://git.openldap.org/openldap/openldap/-/blob/master/libraries/libldap/result.c#L102
On this line, ldap_result will call wait4msg:
https://git.openldap.org/openldap/openldap/-/blob/master/libraries/libldap/result.c#L120
wait4msg is defined here:
https://git.openldap.org/openldap/openldap/-/blob/master/libraries/libldap/result.c#L238
If a response for a given msgid is already stored in the response list, and
all=1, the whole message chain will be returned by the call from wait4msg to
chkResponseList here:
https://git.openldap.org/openldap/openldap/-/blob/master/libraries/libldap/result.c#L297
And rc will be set on the next line to the head of the message chain.
If a response for a given msgid is *not* already stored in the response list,
wait4msg will eventually call try_read1msg here:
https://git.openldap.org/openldap/openldap/-/blob/master/libraries/libldap/result.c#L369
If try_read1msg manages to receive the final search result message for a given
msgid, it will be noted here:
https://git.openldap.org/openldap/openldap/-/blob/master/libraries/libldap/result.c#L1102
The whole chain will be returned here:
https://git.openldap.org/openldap/openldap/-/blob/master/libraries/libldap/result.c#L1141
And the return code will be the tag of the *last* message in the chain, as
opposed to the *first* message in the chain:
https://git.openldap.org/openldap/openldap/-/blob/master/libraries/libldap/result.c#L1153
Which will result in different return codes for chains of multiple messages
(i.e. search results with all=1).
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