No. You don't want to pass a null terminated string to anything but
the methods that explicitly take a C string. Anything else just wants
the characters, with no nulls.
--Jens {via iPhone}
On Jan 31, 2010, at 6:28 PM, Stuart Malin <stu...@zhameesha.com> wrote:
On Jan 31, 2010, at 9:12 PM, Kyle Sluder wrote:
On Sun, Jan 31, 2010 at 5:51 PM, Stuart Malin
<stu...@zhameesha.com> wrote:
I acquire a password from a keychain using
SecKeychainFindGenericPassword. That provides a non null
terminated c string and a length. I had been using [NSString
stringWithCString: length:] to get an NSString instance of the
password. However, the +stringWithCString:length: method was
deprecated way back, so I thought I'd clean up my code and use
+stringWithCString:encoding: -- however that doesn't work because
the supplied C string isn't null terminated. I did a bit of
searching, and found in the archives on CocoaBuilder [1] someone's
solution back in September of 2005, which was to copy the acquired
password to a new buffer of 1 additional byte and create a new
null terminated C string there:
You could wrap the provided buffer with an NSData and use -
[NSString initWithData:encoding:].
If I use +dataWithBytes:length: then I need to specify a length 1
greater, and that additional byte must be set to 0 (to null
terminate the string). So, I could use NSMutableData, then -
resetBytesInRange: to zero out the last byte, which requires
creating an NSRange struct, and that all seems heavier than just
using the C code. But then, the processor is fast, and this is code
that is run rarely, so optimizing isn't important. I guess it is
just a question of style...
_______________________________________________
Cocoa-dev mailing list (Cocoa-dev@lists.apple.com)
Please do not post admin requests or moderator comments to the list.
Contact the moderators at cocoa-dev-admins(at)lists.apple.com
Help/Unsubscribe/Update your Subscription:
http://lists.apple.com/mailman/options/cocoa-dev/jens%40mooseyard.com
This email sent to j...@mooseyard.com
_______________________________________________
Cocoa-dev mailing list (Cocoa-dev@lists.apple.com)
Please do not post admin requests or moderator comments to the list.
Contact the moderators at cocoa-dev-admins(at)lists.apple.com
Help/Unsubscribe/Update your Subscription:
http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com
This email sent to arch...@mail-archive.com
