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Advanced Mac OS X Programming: The Big Nerd Ranch Guide
book

Advanced Mac OS X Programming: The Big Nerd Ranch Guide

by Mark Dalrymple
August 2011
Intermediate to advanced
552 pages
23h 48m
English
Addison-Wesley Professional
Content preview from Advanced Mac OS X Programming: The Big Nerd Ranch Guide

Reading Data From an Item

Of course, once you have fetched the item, you can do all sorts of nifty things with it. For example, if you wanted to read the password, the account name, the description, and the modification date from an item, you would create an attribute list containing those attributes and call SecKeychainItemCopyContent():

OSStatus SecKeychainItemCopyContent (SecKeychainItemRef  itemRef,
                                           SecItemClass *itemClass, 
                               SecKeychainAttributeList *attrList,
                                                 UInt32 *length, 
                                                   void **outData);

Note that here the attrList is specifying what data you want and is also acting as a receptacle. Add these functions to dumpem.m:

/​/​ ​G​i​v​e​n​ ​a​ ​c​a​r​b​o​n​-​s​t​y​l​e​ ​f​o​u​r​ ​c​h​a​r​a​c​t​e​r​ ​c​o​d​e​,​ ​m​a​k​e​ ​a​ ​C​ ​s​t​r​i​n​g​ ...
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Publisher Resources

ISBN: 9780321706560Purchase book