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-
-This directory contains sources for a library which provides
-routines to manipulate the structures used for the client end
-of Microsoft NTLM authentication.
-
-This code was taken mostly from the Samba project and was
-initially intended for use with Microsoft Exchange Server when
-it is configured to require NTLM authentication for clients of
-it's IMAP server.
-
-BUILDING
-
-If you want the library installed in /usr/local/lib and
-the header in /usr/local/include, then
-
- $ make
- $ make install
-
-will probably work. Not much effort has been put into making
-this portable, and I only know for sure that it works on i386
-Linux glibc systems -- though there shouldn't be anything all
-that system-specific anywhere. System byte order differences
-should already be taken care of.
-
-TEST PROGRAM
-
-The test directory contains sources for a program named
-"dumper" that will dump out base64 NTLM auth messages in a
-readable format. It will also take a challenge and generate a
-response if provided with a username and password.
-
-USAGE
-
-The application program must convert these structures to/from
-base64 which is used to transfer data for IMAP authentication.
-For example usage see the sources for the mutt MUA or the
-fetchmail package.
-
-In general the usage is something like shown below (no, I don't
-know if this code even compiles, but you get the idea
-hopefully):
-
-
-#include <ntlm.h>
-
-extern char *seqTag; /* IMAP sequence number */
-
-int imap_auth_ntlm(char *user, char *domain, char *pass)
-{
- tSmbNtlmAuthRequest request;
- tSmbNtlmAuthChallenge challenge;
- tSmbNtlmAuthResponse response;
- char buffer[512];
- char tmpstr[32];
-
- writeToServer("%s AUTHENTICATE NTLM\r\n",seqTag);
- readFromServer(buffer)
-
- /* buffer should be "+", but we won't show code to check */
-
- /*
- * prepare the request, convert to base64, and send it to
- * the the server. My server didn't care about domain, and NULL
- * worked fine.
- */
-
- buildSmbNtlmAuthRequest(&request,user,domain);
- convertToBase64(buffer, &request, SmbLength(&request));
- writeToServer("%s\r\n",buffer);
-
- /* read challange data from server, convert from base64 */
-
- readFromServer(buffer);
-
- /* buffer should contain the string "+ [base 64 data]" */
-
- convertFromBase64(&challenge, buffer+2);
-
- /* prepare response, convert to base64, send to server */
-
- buildSmbNtlmAuthResponse(&challenge, &response, user, pass);
- convertToBase64(buffer,&response,SmbLength(&response));
- writeToServer("%s\r\n",buffer);
-
- /* read line from server, it should be "[seq] OK blah blah blah" */
-
- readFromServer(buffer);
-
- sprintf(tmpstr,"%s OK",seqTag);
-
- if (strncmp(buffer,tmpstr,strlen(tmpstr)))
- {
- /* login failed */
- return -1;
- }
-
- return 0;
-}