NSIS-RunAs - Revision history

67.68.26.243: /* Bugs & Limitations */

2006-05-31T18:33:51Z

Bugs & Limitations

â† Older revision		Revision as of 18:33, 31 May 2006
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	==Bugs & Limitations==		==Bugs & Limitations==
	NSIS-RunAs is currently very basic. Since I don't run in a domain environment, I have not implemented what is needed to query all of possible administrators for a machine and its network domain. This should not be difficult to ~~implement~~ though and contributions are welcome :-).		NSIS-RunAs is currently very basic. Since I don't run in a domain environment, I have not implemented what is needed to query all of possible administrators for a machine and its network domain. This it only supports only one domain at a time. This should not be difficult to enhance though and contributions are welcome :-).

	Besides, I am using a wprintf statement during the GetAdministrators function. I still don't understand where this comes from but it avoids NSIS to crash during the process. This problem only occurs when the declared type is "w" and it works correctly with "t" vars. So I suspect this is rather a bug with the System plugin. Now, I want to keep the "w" vars since it provides better charset independence than then "t" type so I will keep this dirty work-around for now. ("w" is for wide-char strings, such as Unicode, while "t" is for byte-char strings, such as the ones from ISO-8859-XX).		Besides, I am using a wprintf statement during the GetAdministrators function. I still don't understand where this comes from but it avoids NSIS to crash during the process. This problem only occurs when the declared type is "w" and it works correctly with "t" vars. So I suspect this is rather a bug with the System plugin. Now, I want to keep the "w" vars since it provides better charset independence than then "t" type so I will keep this dirty work-around for now. ("w" is for wide-char strings, such as Unicode, while "t" is for byte-char strings, such as the ones from ISO-8859-XX).

67.68.26.243 at 18:31, 31 May 2006

2006-05-31T18:31:12Z

â† Older revision		Revision as of 18:31, 31 May 2006
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	System::Free $4 ; we free the memory used by the array		System::Free $4 ; we free the memory used by the array
	</highlight-nsis>		</highlight-nsis>

			==Bugs & Limitations==
			NSIS-RunAs is currently very basic. Since I don't run in a domain environment, I have not implemented what is needed to query all of possible administrators for a machine and its network domain. This should not be difficult to implement though and contributions are welcome :-).

			Besides, I am using a wprintf statement during the GetAdministrators function. I still don't understand where this comes from but it avoids NSIS to crash during the process. This problem only occurs when the declared type is "w" and it works correctly with "t" vars. So I suspect this is rather a bug with the System plugin. Now, I want to keep the "w" vars since it provides better charset independence than then "t" type so I will keep this dirty work-around for now. ("w" is for wide-char strings, such as Unicode, while "t" is for byte-char strings, such as the ones from ISO-8859-XX).

	==Building==		==Building==

Wolfgang: /* Interface */

2006-05-30T18:34:49Z

Interface

â† Older revision		Revision as of 18:34, 30 May 2006
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	</highlight-nsis>		</highlight-nsis>

	RunAsW takes 4 arguments, the username, the password, the command to execute		RunAsW takes 4 arguments: the username, the password, the command to execute
	and a pointer to an error string. It returns 1 on success, 0 on failure.		and a pointer to an error string. It returns 1 on success, 0 on failure.
	The correct invocation with the System plugin would be		The correct invocation with the System plugin would be

Wolfgang: /* About NSIS-RunAs */

2006-05-30T18:34:05Z

About NSIS-RunAs

â† Older revision		Revision as of 18:34, 30 May 2006
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	==About NSIS-RunAs==		==About NSIS-RunAs==
	Sometimes, certain installers ~~requires~~ administator privileges to be able to		Sometimes, certain installers require administator privileges to be able to
	perform certain actions. For example to modify the registry or to install		perform certain actions. For example to modify the registry or to install
	files in protected areas of the filesystem. Those installers will either tell		files in protected areas of the filesystem. Those installers will either tell

Wolfgang at 18:33, 30 May 2006

2006-05-30T18:33:12Z

â† Older revision		Revision as of 18:33, 30 May 2006
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	This is NSIS-RunAs, a dll to help NSIS installer scripts ~~manager~~ administrator		This is NSIS-RunAs, a dll to help NSIS installer scripts manage administrator
	permissions on processes it launches.		permissions on the processes it launches.

	==Download==		==Download==

Wolfgang at 18:31, 30 May 2006

2006-05-30T18:31:18Z

â† Older revision		Revision as of 18:31, 30 May 2006
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	approriate dialogs with, for example, the InstallOptions plugin, you could		approriate dialogs with, for example, the InstallOptions plugin, you could
	create a login page that will lead the installer to be restarted.		create a login page that will lead the installer to be restarted.
			Here is a visual example of such a login page:
	~~==Screenshot==~~
	Here is an example of a login page:

	http://nsis.sourceforge.net/mediawiki/images/c/c0/RunAs.jpg		http://nsis.sourceforge.net/mediawiki/images/c/c0/RunAs.jpg

Wolfgang at 18:29, 30 May 2006

2006-05-30T18:29:38Z

â† Older revision		Revision as of 18:29, 30 May 2006
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	approriate dialogs with, for example, the InstallOptions plugin, you could		approriate dialogs with, for example, the InstallOptions plugin, you could
	create a login page that will lead the installer to be restarted.		create a login page that will lead the installer to be restarted.

			==Screenshot==
			Here is an example of a login page:

			http://nsis.sourceforge.net/mediawiki/images/c/c0/RunAs.jpg

	==Interface==		==Interface==

Wolfgang: /* Interface */

2006-05-30T18:17:36Z

Interface

â† Older revision		Revision as of 18:17, 30 May 2006
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	IntCmp $0 0 endloop		IntCmp $0 0 endloop
	System::Call '*$2(w .r3)'		System::Call '*$2(w .r3)'
	[code to ~~handles~~ the username in $3]		[code to handle the username in $3]
	System::Free $3 ; we free the memory used by the string		System::Free $3 ; we free the memory used by the string
	IntOp $2 $2 + 4 ; pointers have a size of 4 on 32 bit machines		IntOp $2 $2 + 4 ; pointers have a size of 4 on 32 bit machines

Wolfgang: /* Interface */

2006-05-30T18:16:49Z

Interface

â† Older revision		Revision as of 18:16, 30 May 2006
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	<highlight-nsis>		<highlight-nsis>
	WINAPI DWORD RunAsW (WCHAR uusername, WCHAR upassword,		WINAPI DWORD RunAsW (WCHAR uusername, WCHAR upassword, WCHAR ucommand, WCHAR *error);
	WCHAR ucommand, WCHAR *error);
	WINAPI WCHAR **GetAdministrators (LPWSTR domain, LPDWORD read);		WINAPI WCHAR **GetAdministrators (LPWSTR domain, LPDWORD read);
	</highlight-nsis>		</highlight-nsis>

Wolfgang: /* Interface */

2006-05-30T18:13:45Z

Interface

â† Older revision		Revision as of 18:13, 30 May 2006
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	System::Free $3 ; we free the memory used by the string		System::Free $3 ; we free the memory used by the string
	IntOp $2 $2 + 4 ; pointers have a size of 4 on 32 bit machines		IntOp $2 $2 + 4 ; pointers have a size of 4 on 32 bit machines
			IntOp $0 $0 - 1
	Goto Loop		Goto Loop
	endloop:		endloop: