X-Git-Url: http://andersk.mit.edu/gitweb/libfaim.git/blobdiff_plain/9de3ca7e3fdcf62e088fe2a0c7fcdc219e1a5094..53c935f8f1f4b5b669ab22169e80a70be68f2ed9:/aim_login.c

diff --git a/aim_login.c b/aim_login.c
index 313bffe..51aedd4 100644
--- a/aim_login.c
+++ b/aim_login.c
@@ -5,8 +5,12 @@
  *
  */
 
-#include "aim.h"
+#include <faim/aim.h>
 
+#include "md5.h"
+
+static int aim_encode_password_md5(const char *password, const char *key, md5_byte_t *digest);
+static int aim_encode_password(const char *password, unsigned char *encoded);
 
 /*
  * FIXME: Reimplement the TIS stuff.
@@ -15,8 +19,112 @@
 #include "tis_telnet_proxy.h"
 #endif
 
+faim_export int aim_sendconnack(struct aim_session_t *sess,
+				struct aim_conn_t *conn)
+{
+  int curbyte=0;
+  
+  struct command_tx_struct *newpacket;
+
+  if (!(newpacket = aim_tx_new(AIM_FRAMETYPE_OSCAR, 0x0001, conn, 4)))
+    return -1;
+
+  newpacket->lock = 1;
+  
+  curbyte += aimutil_put16(newpacket->data+curbyte, 0x0000);
+  curbyte += aimutil_put16(newpacket->data+curbyte, 0x0001);
+
+  newpacket->lock = 0;
+  return aim_tx_enqueue(sess, newpacket);
+}
+
+/*
+ * In AIM 3.5 protocol, the first stage of login is to request
+ * login from the Authorizer, passing it the screen name
+ * for verification.  If the name is invalid, a 0017/0003 
+ * is spit back, with the standard error contents.  If valid,
+ * a 0017/0007 comes back, which is the signal to send
+ * it the main login command (0017/0002).  
+ */
+faim_export int aim_request_login(struct aim_session_t *sess,
+				  struct aim_conn_t *conn, 
+				  char *sn)
+{
+  int curbyte;
+  struct command_tx_struct *newpacket;
+
+  if (!sess || !conn || !sn)
+    return -1;
+
+  /*
+   * For ICQ, we enable the ancient horrible login and stuff
+   * a key packet into the queue to make it look like we got
+   * a reply back. This is so the client doesn't know we're
+   * really not doing MD5 login.
+   *
+   * This may sound stupid, but I'm not in the best of moods and 
+   * I don't plan to keep support for this crap around much longer.
+   * Its all AOL's fault anyway, really. I hate AOL.  Really.  They
+   * always seem to be able to piss me off by doing the dumbest little
+   * things.  Like disabling MD5 logins for ICQ UINs, or adding purposefully
+   * wrong TLV lengths, or adding superfluous information to host strings,
+   * or... I'll stop.
+   *
+   */
+  if ((sn[0] >= '0') && (sn[0] <= '9')) {
+    struct command_rx_struct *newrx;
+    int i;
+
+    if (!(newrx = (struct command_rx_struct *)malloc(sizeof(struct command_rx_struct))))
+      return -1;
+    memset(newrx, 0x00, sizeof(struct command_rx_struct));
+    newrx->lock = 1; 
+    newrx->hdrtype = AIM_FRAMETYPE_OSCAR;
+    newrx->hdr.oscar.type = 0x02;
+    newrx->hdr.oscar.seqnum = 0;
+    newrx->commandlen = 10+2+1;
+    newrx->nofree = 0; 
+    if (!(newrx->data = malloc(newrx->commandlen))) {
+      free(newrx);
+      return -1;
+    }
+
+    i = aim_putsnac(newrx->data, 0x0017, 0x0007, 0x0000, 0x0000);
+    i += aimutil_put16(newrx->data+i, 0x01);
+    i += aimutil_putstr(newrx->data+i, "0", 1);
+
+    newrx->conn = conn;
+
+    newrx->next = sess->queue_incoming;
+    sess->queue_incoming = newrx;
+
+    newrx->lock = 0;
+
+    sess->flags &= ~AIM_SESS_FLAGS_SNACLOGIN;
+
+    return 0;
+  } 
+
+  sess->flags |= AIM_SESS_FLAGS_SNACLOGIN;
+
+  aim_sendconnack(sess, conn);
+
+  if (!(newpacket = aim_tx_new(AIM_FRAMETYPE_OSCAR, 0x0002, conn, 10+2+2+strlen(sn))))
+    return -1;
+
+  newpacket->lock = 1;
+  
+  curbyte  = aim_putsnac(newpacket->data, 0x0017, 0x0006, 0x0000, 0x00010000);
+  curbyte += aim_puttlv_str(newpacket->data+curbyte, 0x0001, strlen(sn), sn);
+
+  newpacket->commandlen = curbyte;
+  newpacket->lock = 0;
+
+  return aim_tx_enqueue(sess, newpacket);
+}
+
 /*
- *  send_login(int socket, char *sn, char *password)
+ * send_login(int socket, char *sn, char *password)
  *  
  * This is the initial login request packet.
  *
@@ -24,267 +132,131 @@
  * encode_password().  See that function for their
  * stupid method of doing it.
  *
- *
- *
  */
-int aim_send_login (struct aim_conn_t *conn, char *sn, char *password, struct client_info_s *clientinfo)
-#if 0
+faim_export int aim_send_login (struct aim_session_t *sess,
+				struct aim_conn_t *conn, 
+				char *sn, char *password, 
+				struct client_info_s *clientinfo,
+				char *key)
 {
-  char *password_encoded = NULL;  /* to store encoded password */
   int curbyte=0;
+  struct command_tx_struct *newpacket;
 
-  struct command_tx_struct newpacket;
+  if (!clientinfo || !sn || !password)
+    return -1;
 
-  if (conn)
-    newpacket.conn = conn;
-  else
-    newpacket.conn = aim_getconn_type(AIM_CONN_TYPE_AUTH);
-
-  newpacket.commandlen = 6+2+strlen(sn)+1+1+2+strlen(password)+6;
-
-  if (clientinfo)
-    {
-      if (strlen(clientinfo->clientstring))
-	newpacket.commandlen += strlen(clientinfo->clientstring)+4;
-      newpacket.commandlen += 6+6+6; 
-      if (strlen(clientinfo->country))
-	newpacket.commandlen += strlen(clientinfo->country)+4;
-      if (strlen(clientinfo->lang))
-	newpacket.commandlen += strlen(clientinfo->lang)+4;
-    }
+  if (!(newpacket = aim_tx_new(AIM_FRAMETYPE_OSCAR, 0x0002, conn, 1152)))
+    return -1;
 
-  newpacket.data = (char *) calloc (1,  newpacket.commandlen );
-  newpacket.lock = 1;
-  newpacket.type = 0x01;
-
-  curbyte += aimutil_put16(newpacket.data+curbyte, 0x0000);
-  curbyte += aimutil_put16(newpacket.data+curbyte, 0x0001);
-  curbyte += aimutil_put16(newpacket.data+curbyte, 0x0001);
-  curbyte += aimutil_put16(newpacket.data+curbyte, strlen(sn));
-  curbyte += aimutil_putstr(newpacket.data+curbyte, sn, strlen(sn));
-
-  curbyte += aimutil_put16(newpacket.data+curbyte, 0x0002);
-  curbyte += aimutil_put16(newpacket.data+curbyte, strlen(password));
-  password_encoded = (char *) malloc(strlen(password));
-  aim_encode_password(password, password_encoded);
-  curbyte += aimutil_putstr(newpacket.data+curbyte, password_encoded, strlen(password));
-  free(password_encoded);
-  
-  curbyte += aim_puttlv_16(newpacket.data+curbyte, 0x0016, 0x0001);
-
-  if (clientinfo)
-    {
-      if (strlen(clientinfo->clientstring))
-	{
-	  curbyte += aimutil_put16(newpacket.data+curbyte, 0x0003);
-	  curbyte += aimutil_put16(newpacket.data+curbyte, strlen(clientinfo->clientstring));
-	  curbyte += aimutil_putstr(newpacket.data+curbyte, clientinfo->clientstring, strlen(clientinfo->clientstring));
-	}
-      curbyte += aim_puttlv_16(newpacket.data+curbyte, 0x0017, 0x0001);
-      curbyte += aim_puttlv_16(newpacket.data+curbyte, 0x0018, 0x0001);
-      curbyte += aim_puttlv_16(newpacket.data+curbyte, 0x001a, 0x0013);
-      if (strlen(clientinfo->country))
-	{
-	  curbyte += aimutil_put16(newpacket.data+curbyte, 0x000e);
-	  curbyte += aimutil_put16(newpacket.data+curbyte, strlen(clientinfo->country));
-	  curbyte += aimutil_putstr(newpacket.data+curbyte, clientinfo->country, strlen(clientinfo->country));
-	}
-       if (strlen(clientinfo->lang))
-	{
-	  curbyte += aimutil_put16(newpacket.data+curbyte, 0x000f);
-	  curbyte += aimutil_put16(newpacket.data+curbyte, strlen(clientinfo->lang));
-	  curbyte += aimutil_putstr(newpacket.data+curbyte, clientinfo->lang, strlen(clientinfo->lang));
-	}
-    }
+  newpacket->lock = 1;
 
-  curbyte += aim_puttlv_16(newpacket.data+curbyte, 0x0009, 0x0015);
+  newpacket->hdr.oscar.type = (sess->flags & AIM_SESS_FLAGS_SNACLOGIN)?0x02:0x01;
+  
+  if (sess->flags & AIM_SESS_FLAGS_SNACLOGIN)
+    curbyte = aim_putsnac(newpacket->data, 0x0017, 0x0002, 0x0000, 0x00010000);
+  else {
+    curbyte  = aimutil_put16(newpacket->data, 0x0000);
+    curbyte += aimutil_put16(newpacket->data+curbyte, 0x0001);
+  }
+
+  curbyte += aim_puttlv_str(newpacket->data+curbyte, 0x0001, strlen(sn), sn);
+  
+  if (sess->flags & AIM_SESS_FLAGS_SNACLOGIN) {
+    md5_byte_t digest[16];
+
+    aim_encode_password_md5(password, key, digest);
+    curbyte+= aim_puttlv_str(newpacket->data+curbyte, 0x0025, 16, (char *)digest);
+  } else { 
+    char *password_encoded;
+
+    password_encoded = (char *) malloc(strlen(password));
+    aim_encode_password(password, password_encoded);
+    curbyte += aim_puttlv_str(newpacket->data+curbyte, 0x0002, strlen(password), password_encoded);
+    free(password_encoded);
+  }
+
+  /* XXX is clientstring required by oscar? */
+  if (strlen(clientinfo->clientstring))
+    curbyte += aim_puttlv_str(newpacket->data+curbyte, 0x0003, strlen(clientinfo->clientstring), clientinfo->clientstring);
+
+  if (sess->flags & AIM_SESS_FLAGS_SNACLOGIN) {
+    curbyte += aim_puttlv_16(newpacket->data+curbyte, 0x0016, (unsigned short)clientinfo->major2);
+    curbyte += aim_puttlv_16(newpacket->data+curbyte, 0x0017, (unsigned short)clientinfo->major);
+    curbyte += aim_puttlv_16(newpacket->data+curbyte, 0x0018, (unsigned short)clientinfo->minor);
+    curbyte += aim_puttlv_16(newpacket->data+curbyte, 0x0019, (unsigned short)clientinfo->minor2);
+    curbyte += aim_puttlv_16(newpacket->data+curbyte, 0x001a, (unsigned short)clientinfo->build);
+  
+    curbyte += aim_puttlv_32(newpacket->data+curbyte, 0x0014, clientinfo->unknown);
+    curbyte += aim_puttlv_16(newpacket->data+curbyte, 0x0009, 0x0015);
+  } else {
+    curbyte += aim_puttlv_16(newpacket->data+curbyte, 0x0016, 0x010a);
+    curbyte += aim_puttlv_16(newpacket->data+curbyte, 0x0017, 0x0004);
+    curbyte += aim_puttlv_16(newpacket->data+curbyte, 0x0018, 0x003c);
+    curbyte += aim_puttlv_16(newpacket->data+curbyte, 0x0019, 0x0001);
+    curbyte += aim_puttlv_16(newpacket->data+curbyte, 0x001a, 0x0cce);
+    curbyte += aim_puttlv_32(newpacket->data+curbyte, 0x0014, 0x00000055);
+  }
+
+  if (strlen(clientinfo->country))
+    curbyte += aim_puttlv_str(newpacket->data+curbyte, 0x000e, strlen(clientinfo->country), clientinfo->country);
+  else
+    curbyte += aim_puttlv_str(newpacket->data+curbyte, 0x000e, 2, "us");
 
-  newpacket.lock = 0;
-  aim_tx_enqueue(&newpacket);
+  if (strlen(clientinfo->lang))
+    curbyte += aim_puttlv_str(newpacket->data+curbyte, 0x000f, strlen(clientinfo->lang), clientinfo->lang);
+  else
+    curbyte += aim_puttlv_str(newpacket->data+curbyte, 0x000f, 2, "en");
+  
+  newpacket->commandlen = curbyte;
 
-  return 0;
+  newpacket->lock = 0;
+  return aim_tx_enqueue(sess, newpacket);
 }
-#else
-{
-
-  /* this is for the client info field of this packet.  for now, just
-     put a few zeros in there and hope they don't notice. */
-  char info_field[] = {
-    0x00, 0x00, 0x00, 0x00
-  };
-  int info_field_len = 4;
-
-  char *password_encoded = NULL;  /* to store encoded password */
-  int n = 0; /* counter during packet construction */
 
-  struct command_tx_struct newpacket;
+static int aim_encode_password_md5(const char *password, const char *key, md5_byte_t *digest)
+{
+  md5_state_t state;
 
-  if (conn)
-    newpacket.conn = conn;
-  else
-    newpacket.conn = aim_getconn_type(AIM_CONN_TYPE_AUTH);
-
-  /* breakdown of new_packet_login_len */
-  newpacket.commandlen = 6; /* SNAC: fixed bytes */
-  newpacket.commandlen += 2; /* SN len */
-  newpacket.commandlen += strlen(sn); /* SN text */
-  newpacket.commandlen += 1; /* SN null terminator */
-  newpacket.commandlen += 1; /* fixed byte */
-  newpacket.commandlen += 2; /* password len */
-  newpacket.commandlen += strlen(password); /* password text */
-  newpacket.commandlen += 1; /* password null term*/
-  newpacket.commandlen += 1; /* fixed byte */
-  newpacket.commandlen += 2; /* info field len */
-  newpacket.commandlen += info_field_len; /* info field text */
-  newpacket.commandlen += 1; /* info field null term */
-  newpacket.commandlen += 41; /* fixed bytes */
-
-  /* allocate buffer to use for constructing packet_login */
-  newpacket.data = (char *) malloc ( newpacket.commandlen );
-  memset(newpacket.data, 0x00, newpacket.commandlen);
-
-  newpacket.lock = 1;
-  newpacket.type = 0x01;
-
-  newpacket.data[0] = 0x00;
-  newpacket.data[1] = 0x00;
-  newpacket.data[2] = 0x00;
-  newpacket.data[3] = 0x01;
-  newpacket.data[4] = 0x00;
-  newpacket.data[5] = 0x01;
-
-  newpacket.data[6] = (char) ( (strlen(sn)) >> 8);
-  newpacket.data[7] = (char) ( (strlen(sn)) & 0xFF);
-
-  n = 8;
-  memcpy(&(newpacket.data[n]), sn, strlen(sn));
-  n += strlen(sn);
-  newpacket.data[n] = 0x00;
-  n++;
-
-  newpacket.data[n] = 0x02;
-  n++;
-
-  /* store password length as word */
-  newpacket.data[n] = (char) ( (strlen(password)) >> 8);
-  newpacket.data[n+1] = (char) ( (strlen(password)) & 0xFF);
-  n += 2;
-
-  /* allocate buffer for encoded password */
-  password_encoded = (char *) malloc(strlen(password));
-  /* encode password */
-  aim_encode_password(password, password_encoded);
-  /* store encoded password */
-  memcpy(&(newpacket.data[n]), password_encoded, strlen(password));
-
-  n += strlen(password);
-  /* free buffer */
-  free(password_encoded);
-  /* place null terminator after encoded password */
-  newpacket.data[n] = 0x00;
-  n++;
-
-  newpacket.data[n] = 0x03;
-  n++;
-
-  newpacket.data[n] = (char) ( (info_field_len) >> 8);
-  newpacket.data[n+1] = (char) ( (info_field_len) & 0xFF);
-  n += 2;
-  memcpy(&(newpacket.data[n]), info_field, info_field_len);
-  n += info_field_len;
-  newpacket.data[n] = 0x00;
-  n++;
-
-  newpacket.data[n] = 0x16;
-  newpacket.data[n+1] = 0x00;
-  newpacket.data[n+2] = 0x02;
-  newpacket.data[n+3] = 0x00;
-  n += 4;
-  newpacket.data[n] = 0x01;
-  newpacket.data[n+1] = 0x00;
-  newpacket.data[n+2] = 0x17;
-  newpacket.data[n+3] = 0x00;
-  n += 4;
-
-  newpacket.data[n] = 0x02;
-  newpacket.data[n+1] = 0x00;
-  newpacket.data[n+2] = 0x01;
-  newpacket.data[n+3] = 0x00;
-  n += 4;
-
-  newpacket.data[n] = 0x18;
-  newpacket.data[n+1] = 0x00;
-  newpacket.data[n+2] = 0x02;
-  newpacket.data[n+3] = 0x00;
-  n += 4;
-
-  newpacket.data[n] = 0x01;
-  newpacket.data[n+1] = 0x00;
-  newpacket.data[n+2] = 0x1a;
-  newpacket.data[n+3] = 0x00;
-  n += 4;
-
-  newpacket.data[n] = 0x02;
-  newpacket.data[n+1] = 0x00;
-  newpacket.data[n+2] = 0x13;
-  newpacket.data[n+3] = 0x00;
-  n += 4;
-
-  newpacket.data[n] = 0x0e;
-  newpacket.data[n+1] = 0x00;
-  newpacket.data[n+2] = 0x02;
-  newpacket.data[n+3] = 0x75;
-  n += 4;
-
-  newpacket.data[n] = 0x73;
-  newpacket.data[n+1] = 0x00;
-  newpacket.data[n+2] = 0x0f;
-  newpacket.data[n+3] = 0x00;
-  n += 4;
-
-  newpacket.data[n] = 0x02;
-  newpacket.data[n+1] = 0x65;
-  newpacket.data[n+2] = 0x6e;
-  newpacket.data[n+3] = 0x00;
-  n += 4;
-  newpacket.data[n] = 0x09;
-  newpacket.data[n+1] = 0x00;
-  newpacket.data[n+2] = 0x02;
-  newpacket.data[n+3] = 0x00;
-  n += 4;
-
-  newpacket.data[n] = 0x15;
-  n += 1;
-
-  aim_tx_enqueue(&newpacket);
+  md5_init(&state);	
+  md5_append(&state, (const md5_byte_t *)key, strlen(key));
+  md5_append(&state, (const md5_byte_t *)password, strlen(password));
+  md5_append(&state, (const md5_byte_t *)AIM_MD5_STRING, strlen(AIM_MD5_STRING));
+  md5_finish(&state, (md5_byte_t *)digest);
 
   return 0;
 }
-#endif
 
-/*
- *  int encode_password(
- *                      const char *password,
- *	                char *encoded
- *	                ); 
+/**
+ * aim_encode_password - Encode a password using old XOR method
+ * @password: incoming password
+ * @encoded: buffer to put encoded password
  *
  * This takes a const pointer to a (null terminated) string
  * containing the unencoded password.  It also gets passed
  * an already allocated buffer to store the encoded password.
  * This buffer should be the exact length of the password without
- * the null.  The encoded password buffer IS NOT NULL TERMINATED.
+ * the null.  The encoded password buffer /is not %NULL terminated/.
  *
  * The encoding_table seems to be a fixed set of values.  We'll
  * hope it doesn't change over time!  
  *
+ * This is only used for the XOR method, not the better MD5 method.
+ *
  */
-int aim_encode_password(const char *password, char *encoded)
+static int aim_encode_password(const char *password, unsigned char *encoded)
 {
   u_char encoding_table[] = {
+#if 0 /* old v1 table */
     0xf3, 0xb3, 0x6c, 0x99,
     0x95, 0x3f, 0xac, 0xb6,
     0xc5, 0xfa, 0x6b, 0x63,
     0x69, 0x6c, 0xc3, 0x9f
+#else /* v2.1 table, also works for ICQ */
+    0xf3, 0x26, 0x81, 0xc4,
+    0x39, 0x86, 0xdb, 0x92,
+    0x71, 0xa3, 0xb9, 0xe6,
+    0x53, 0x7a, 0x95, 0x7c
+#endif
   };
 
   int i;
@@ -295,6 +267,256 @@ int aim_encode_password(const char *password, char *encoded)
   return 0;
 }
 
+/*
+ * This is sent back as a general response to the login command.
+ * It can be either an error or a success, depending on the
+ * precense of certain TLVs.  
+ *
+ * The client should check the value of logininfo->errorcode. If
+ * its nonzero, there was an error.
+ *
+ */
+faim_internal int aim_authparse(struct aim_session_t *sess, 
+				struct command_rx_struct *command)
+{
+  struct aim_tlvlist_t *tlvlist;
+  int ret = 1;
+  char *sn;
+  rxcallback_t userfunc = NULL;
+
+  memset(&sess->logininfo, 0x00, sizeof(sess->logininfo));
+
+  /*
+   * Read block of TLVs.  All further data is derived
+   * from what is parsed here.
+   *
+   * For SNAC login, there's a 17/3 SNAC header in front.
+   *
+   */
+  if (sess->flags & AIM_SESS_FLAGS_SNACLOGIN)
+    tlvlist = aim_readtlvchain(command->data+10, command->commandlen-10);
+  else
+    tlvlist = aim_readtlvchain(command->data, command->commandlen);
+
+  /*
+   * No matter what, we should have a screen name.
+   */
+  sn = aim_gettlv_str(tlvlist, 0x0001, 1);
+  strncpy(sess->logininfo.screen_name, sn, strlen(sn));
+  free(sn);
+
+  /*
+   * Check for an error code.  If so, we should also
+   * have an error url.
+   */
+  if (aim_gettlv(tlvlist, 0x0008, 1)) {
+    struct aim_tlv_t *errtlv;
+    errtlv = aim_gettlv(tlvlist, 0x0008, 1);
+    sess->logininfo.errorcode = aimutil_get16(errtlv->value);
+    sess->logininfo.errorurl = aim_gettlv_str(tlvlist, 0x0004, 1);
+  }
+  /* 
+   * If we have both an IP number (0x0005) and a cookie (0x0006),
+   * then the login was successful.
+   */
+  else if (aim_gettlv(tlvlist, 0x0005, 1) && aim_gettlv(tlvlist, 0x0006, 1) 
+	   /*aim_gettlv(tlvlist, 0x0006, 1)->length*/) {
+    struct aim_tlv_t *tmptlv;
+
+    /*
+     * IP address of BOS server.
+     */
+    sess->logininfo.BOSIP = aim_gettlv_str(tlvlist, 0x0005, 1);
+    
+    /*
+     * Authorization Cookie
+     */
+    tmptlv = aim_gettlv(tlvlist, 0x0006, 1);
+    memcpy(sess->logininfo.cookie, tmptlv->value, AIM_COOKIELEN);
+    
+    /*
+     * The email address attached to this account
+     *   Not available for ICQ logins.
+     */
+    if (aim_gettlv(tlvlist, 0x0011, 1))
+      sess->logininfo.email = aim_gettlv_str(tlvlist, 0x0011, 1);
+    
+    /*
+     * The registration status.  (Not real sure what it means.)
+     *   Not available for ICQ logins.
+     */
+    if ((tmptlv = aim_gettlv(tlvlist, 0x0013, 1)))
+      sess->logininfo.regstatus = aimutil_get16(tmptlv->value);
+      
+  }
+
+  userfunc = aim_callhandler(command->conn, 0x0017, 0x0003);
+
+  if (userfunc)
+    ret = userfunc(sess, command);
+
+  aim_freetlvchain(&tlvlist);
+
+  if (sess->logininfo.BOSIP) {
+    free(sess->logininfo.BOSIP);
+    sess->logininfo.BOSIP = NULL;
+  }
+  if (sess->logininfo.email) {
+    free(sess->logininfo.email);
+    sess->logininfo.email = NULL;
+  }
+  if (sess->logininfo.errorurl) {
+    free(sess->logininfo.errorurl);
+    sess->logininfo.errorurl = NULL;
+  }
+
+  return ret;
+}
+
+/*
+ * Middle handler for 0017/0007 SNACs.  Contains the auth key prefixed
+ * by only its length in a two byte word.
+ *
+ * Calls the client, which should then use the value to call aim_send_login.
+ *
+ */
+faim_internal int aim_authkeyparse(struct aim_session_t *sess, struct command_rx_struct *command)
+{
+  unsigned char *key;
+  int keylen;
+  int ret = 1;
+  rxcallback_t userfunc;
+
+  keylen = aimutil_get16(command->data+10);
+  if (!(key = malloc(keylen+1)))
+    return ret;
+  memcpy(key, command->data+12, keylen);
+  key[keylen] = '\0';
+  
+  if ((userfunc = aim_callhandler(command->conn, 0x0017, 0x0007)))
+    ret = userfunc(sess, command, (char *)key);
+
+  free(key);  
+
+  return ret;
+}
+
+/*
+ * Generate an authorization response.  
+ *
+ * You probably don't want this unless you're writing an AIM server.
+ *
+ */
+faim_export unsigned long aim_sendauthresp(struct aim_session_t *sess, 
+					   struct aim_conn_t *conn, 
+					   char *sn, char *bosip, 
+					   char *cookie, char *email, 
+					   int regstatus)
+{	
+  struct command_tx_struct *tx;
+  struct aim_tlvlist_t *tlvlist = NULL;
+
+  if (!(tx = aim_tx_new(AIM_FRAMETYPE_OSCAR, 0x0004, conn, 1152)))
+    return -1;
+  
+  tx->lock = 1;
+
+  if (sn)
+    aim_addtlvtochain_str(&tlvlist, 0x0001, sn, strlen(sn));
+  else
+    aim_addtlvtochain_str(&tlvlist, 0x0001, sess->logininfo.screen_name, strlen(sess->logininfo.screen_name));
+
+  if (sess->logininfo.errorcode) {
+    aim_addtlvtochain16(&tlvlist, 0x0008, sess->logininfo.errorcode);
+    aim_addtlvtochain_str(&tlvlist, 0x0004, sess->logininfo.errorurl, strlen(sess->logininfo.errorurl));
+  } else {
+    aim_addtlvtochain_str(&tlvlist, 0x0005, bosip, strlen(bosip));
+    aim_addtlvtochain_str(&tlvlist, 0x0006, cookie, AIM_COOKIELEN);
+    aim_addtlvtochain_str(&tlvlist, 0x0011, email, strlen(email));
+    aim_addtlvtochain16(&tlvlist, 0x0013, (unsigned short)regstatus);
+  }
+
+  tx->commandlen = aim_writetlvchain(tx->data, tx->commandlen, &tlvlist);
+  tx->lock = 0;
+  return aim_tx_enqueue(sess, tx);
+}
+
+/*
+ * Generate a random cookie.  (Non-client use only)
+ */
+faim_export int aim_gencookie(unsigned char *buf)
+{
+  int i;
+
+  srand(time(NULL));
 
+  for (i=0; i < AIM_COOKIELEN; i++)
+    buf[i] = 1+(int) (256.0*rand()/(RAND_MAX+0.0));
 
+  return i;
+}
 
+/*
+ * Send Server Ready.  (Non-client)
+ */
+faim_export int aim_sendserverready(struct aim_session_t *sess, struct aim_conn_t *conn)
+{
+  struct command_tx_struct *tx;
+  int i = 0;
+
+  if (!(tx = aim_tx_new(AIM_FRAMETYPE_OSCAR, 0x0002, conn, 10+0x22)))
+    return -1;
+
+  tx->lock = 1;
+
+  i += aim_putsnac(tx->data, 0x0001, 0x0003, 0x0000, sess->snac_nextid++);
+  
+  i += aimutil_put16(tx->data+i, 0x0001);  
+  i += aimutil_put16(tx->data+i, 0x0002);
+  i += aimutil_put16(tx->data+i, 0x0003);
+  i += aimutil_put16(tx->data+i, 0x0004);
+  i += aimutil_put16(tx->data+i, 0x0006);
+  i += aimutil_put16(tx->data+i, 0x0008);
+  i += aimutil_put16(tx->data+i, 0x0009);
+  i += aimutil_put16(tx->data+i, 0x000a);
+  i += aimutil_put16(tx->data+i, 0x000b);
+  i += aimutil_put16(tx->data+i, 0x000c);
+  i += aimutil_put16(tx->data+i, 0x0013);
+  i += aimutil_put16(tx->data+i, 0x0015);
+
+  tx->commandlen = i;
+  tx->lock = 0;
+  return aim_tx_enqueue(sess, tx);
+}
+
+
+/* 
+ * Send service redirect.  (Non-Client)
+ */
+faim_export unsigned long aim_sendredirect(struct aim_session_t *sess, 
+					   struct aim_conn_t *conn, 
+					   unsigned short servid, 
+					   char *ip,
+					   char *cookie)
+{	
+  struct command_tx_struct *tx;
+  struct aim_tlvlist_t *tlvlist = NULL;
+  int i = 0;
+
+  if (!(tx = aim_tx_new(AIM_FRAMETYPE_OSCAR, 0x0002, conn, 1152)))
+    return -1;
+
+  tx->lock = 1;
+
+  i += aim_putsnac(tx->data+i, 0x0001, 0x0005, 0x0000, 0x00000000);
+  
+  aim_addtlvtochain16(&tlvlist, 0x000d, servid);
+  aim_addtlvtochain_str(&tlvlist, 0x0005, ip, strlen(ip));
+  aim_addtlvtochain_str(&tlvlist, 0x0006, cookie, AIM_COOKIELEN);
+
+  tx->commandlen = aim_writetlvchain(tx->data+i, tx->commandlen-i, &tlvlist)+i;
+  aim_freetlvchain(&tlvlist);
+
+  tx->lock = 0;
+  return aim_tx_enqueue(sess, tx);
+}