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POObjective Zip problems getting started
primarykey
Id
11137629
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AcceptedAnswerId
13084673
AnswerCount
2
ClosedDate
CommentCount
10
CommunityOwnedDate
CreationDate
2012-06-21T11:57:13.067
FavoriteCount
0
LastActivityDate
2012-10-26T09:54:35.320
LastEditDate
2012-06-21T14:37:10.560
LastEditorUserId
488212
OwnerUserId
966656
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0
PostTypeId
1
Score
0
ViewCount
515
LastEditorDisplayName
text
Body
I am trying to use objective zip (v1.01e) in an IOS4 application as I want the ability to send password protected zip files via email. I have got the objective zip source code files in my application, but am experiencing some problems following this getting started guide. <a href="http://code.google.com/p/objective-zip/wiki/GettingStarted" rel="nofollow">http://code.google.com/p/objective-zip/wiki/GettingStarted</a> I use the following command <pre><code>ZipFile *zipFile= [[ZipFile alloc] initWithFileName:@"yourFiles.zip" mode:ZipFileModeCreate]; </code></pre> But this always fails returning null via the code shown below from method zipOpen2 (line 507). Here: <pre><code>if (ziinit.filestream == NULL) return NULL; </code></pre> Following the stack trace it passes though the following methods: <pre><code>//First - (id) initWithFileName:(NSString *)fileName mode:(ZipFileMode)mode //Second extern zipFile ZEXPORT zipOpen (pathname, append) //Third extern zipFile ZEXPORT zipOpen2 (pathname, append, globalcomment, pzlib_filefunc_def) </code></pre> However, I notice the second method has this code. <pre><code>extern zipFile ZEXPORT zipOpen (pathname, append) const char *pathname; int append; { return zipOpen2(pathname,append,NULL,NULL); } </code></pre> When I query the value of the string pathname (in GDB) from this method on I get: 0x1b7f30 does not appear to point to a valid object. So my questions: <ol> <li>What is <code>const char *pathname</code>, what does it do and is it messing up the pathname? AFAIK char is a single character which cant possibly represent a file name??</li> <li>The code shown comes from source code of the objective zip project and not my own so I assume its working. It may be my misunderstanding of it. So what other possible reasons could be causing this problem?</li> </ol> For some more info <code>initWithFileName:</code> takes the parameter, filename and passes it on to <code>zipOpen()</code> by creating a pointer to file name as follows. <pre><code>_fileName = [fileName retain]; </code></pre>
Tags
<objective-c><ios><zip>
Title
Objective Zip problems getting started
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1. PO
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1. This table or related slice is empty.
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1. PTQuestion
UserLastEditorUserId
1. USSergio Moura
UserOwnerUserId
1. USAndrew S
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1. PO
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