A problematic combination of malloc and getCharacters.
A problematic combination of malloc and getCharacters.
- Subject: A problematic combination of malloc and getCharacters.
- From: deepak gopal <email@hidden>
- Date: Thu, 25 Oct 2007 04:28:12 +0530 (IST)
Hi
The method performChange would run a script which would modify a plist.
When the control reaches line 12 I get this message "/: /: is a directory" in the run log and when I check in the debugger I find that plistScript and garage have "/" as the value. So I know where the problem is but dont' know what's causing it or what the solution is.
There is no problem with the authorization or with the paths copyPlistScript_ (/tmp/script) or garage_ (/tmp/garage)
I assume that the memory allocation in line 4 and line 6 would give the same result.
Can someone guide me?
1 - (BOOL)performChange {
2 char **plistArgs = (char **) malloc(3 *sizeof(char*));
3 NSString *shell = @"/bin/sh";
4 char *plistScript = (char *) malloc([copyPlistScript_ length]*sizeof(unichar));
5 [copyPlistScript_ getCharacters:(unichar *) plistScript];
6 char *garage = (char *) malloc([garage_ lengthOfBytesUsingEncoding:NSUnicodeStringEncoding]);
7 [garage_ getCharacters:(unichar *) garage];
8 plistArgs[0] = plistScript;
9 plistArgs[1] = garage;
10 plistArgs[2] = NULL;
12 OSStatus status = AuthorizationExecuteWithPrivileges(authRef_, [shell UTF8String], 0, plistArgs, NULL);
13 if ((status == errAuthorizationCanceled) || (status != errAuthorizationSuccess)) {
14 NSLog(@"Desktop Break Change: Authorization failed when installing new configuration plists.");
15 return NO;
16 }
17 free(plistScript);
18 free(garage);
19 free(plistArgs);
20}
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