Re: pam_chauthtok crash in solaris

[John Manko <xerid@xxxxxxxxxxxx>]

Is that the exact format of the code?  also, what is before and after?
Nathan Yocom wrote:

> A couple questions on using pam_chauthtok in Solaris (I am
> testing/developing in 8).  Please let me know if for some reason this is not
> an appropriate list, but it seems to be the only active one I can find ;)
>
> When I setup and call pam_chauthtok in a PAM aware app like:
>
> if( (ret = pam_start("passwd", NULL, &changeconv, &pamh)) == PAM_SUCCESS )
> 			if( (ret = pam_chauthtok(pamh, PAM_SILENT)) == PAM_SUCCESS )
> 					changed = 1;
>
> It seems to crash before even getting to my conversation function (which is
> included below just in case) - it just segfaults.  The same exact code works
> fine in linux, so I am guessing it is a quirk with Solaris.  All I want to
> do is force a change of the users password (regardless of expiration etc) as
> this is for an application that manages users.
>
> Any ideas? suggestions?  Let me know if I need to provide more, the app is
> to be GPL'd so I can share source as necessary etc.
>
> Thanks in advance!
> Nathan Yocom
> nate@yocom.org
>
> my conversation function (where new_pass and gl_username are globals):
>
> /** PAM Conversation for changing a users password */
> int change_conv(int num_msg,const struct pam_message **msg, struct
> pam_response **response, void *appdata_ptr)
> {
> 	struct pam_response *reply_with = NULL;
> 	int num_replies;
> 	char buffer[80];
>
> 	if( num_msg <= 0 )
> 		return PAM_CONV_ERR;
>
> 	reply_with = (struct pam_response *)calloc(num_msg, sizeof(struct
> pam_response));
>
> 	if( reply_with == NULL )
> 		return PAM_SYSTEM_ERR;
>
> 	memset(buffer,'\0',sizeof(buffer));
>
> 	for( num_replies = 0; num_replies < num_msg; num_replies++ )
> 	{
> 		if( msg[num_replies]->msg_style == PAM_PROMPT_ECHO_OFF )
> 		{
> 			reply_with[num_replies].resp_retcode = PAM_SUCCESS;
> 			reply_with[num_replies].resp = strdup(new_pass);
> 		}
> 		else if( msg[num_replies]->msg_style == PAM_PROMPT_ECHO_ON )
> 		{
> 			reply_with[num_replies].resp_retcode = PAM_SUCCESS;
> 			reply_with[num_replies].resp = strdup(gl_username);
> 		}
> 		else
> 		{
> 			free(reply_with);
> 			return PAM_CONV_ERR;
> 		}
> 	}
>
> 	*response = reply_with;
> 	return PAM_SUCCESS;
> }
>
>
>
> _______________________________________________
>
> Pam-list@redhat.com
> https://listman.redhat.com/mailman/listinfo/pam-list
>
>  




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