Re: Using DirectoryService to Find Users
Re: Using DirectoryService to Find Users
- Subject: Re: Using DirectoryService to Find Users
- From: "stephen joseph butler" <email@hidden>
- Date: Fri, 5 Jan 2007 01:23:02 -0600
2007/1/5, King Chung Huang <email@hidden>:
(I'm not sure if this is the best list to post this question on. If
there's a more appropriate list, please let me know!)
I'm trying to use DirectoryService to get a list of users with uid >
500 (ie: "normal" users). Using Technical Q&A 1462 as a starting
point, I modified its search parameters to find kDS1AttrUniqueID
that's eDSGreaterThan "500". But, it only returns one result, and
it's the Unknown User with uid 99. Does anyone know what's wrong with
my code? Here's a snippet of it, and a link to the full code.
Welcome to Open Directory, my hell for the past two weeks.
patternToMatch = dsDataNodeAllocateString(dirRef, "500");
matchType = dsDataNodeAllocateString(dirRef, kDS1AttrUniqueID);
requestedAttributes = dsBuildListFromStrings(dirRef,
kDS1AttrDistinguishedName, kDS1AttrUniqueID, NULL);
status = dsDoAttributeValueSearchWithData(nodeRef, dataBuff,
&recordTypesToSearchFor, matchType, eDSGreaterThan, patternToMatch,
requestedAttributes, FALSE, &numResults, &context);
http://apollo.ucalgary.ca/~king/DSSearchPractice.zip
Your error isn't in the truncated code, so thanks for providing the
whole example.
The problem is that you forgot to set numResults to 0 before calling
dsDoAttributeValueSearchWithData. It contained a previous result of 1
from dsFindDirNodes, so was only returning the first result (the
Unknown User).
However, I don't believe this code will ultimately do what you want.
NetInfo doesn't seem to have a concept that some datatypes should be
compared as integers. It appears to be returning all values with a
strcmp( attribute, "500" ) > 0.
I think this could would probably work on an LDAP node, however.
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