Merge branch 'u2_10_12_branch' of git://git.code.sf.net/p/undernet-ircu/ircu2

[ircu2.10.12-pk.git] / ircd / m_user.c

diff --git a/ircd/m_user.c b/ircd/m_user.c
new file mode 100644 (file)
index 0000000..2ef1320
--- /dev/null
+++ b/ircd/m_user.c
@@ -0,0 +1,169 @@
+/*
+ * IRC - Internet Relay Chat, ircd/m_user.c
+ * Copyright (C) 1990 Jarkko Oikarinen and
+ *                    University of Oulu, Computing Center
+ *
+ * See file AUTHORS in IRC package for additional names of
+ * the programmers.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 1, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * $Id$
+ */
+
+/*
+ * m_functions execute protocol messages on this server:
+ *
+ *    cptr    is always NON-NULL, pointing to a *LOCAL* client
+ *            structure (with an open socket connected!). This
+ *            identifies the physical socket where the message
+ *            originated (or which caused the m_function to be
+ *            executed--some m_functions may call others...).
+ *
+ *    sptr    is the source of the message, defined by the
+ *            prefix part of the message if present. If not
+ *            or prefix not found, then sptr==cptr.
+ *
+ *            (!IsServer(cptr)) => (cptr == sptr), because
+ *            prefixes are taken *only* from servers...
+ *
+ *            (IsServer(cptr))
+ *                    (sptr == cptr) => the message didn't
+ *                    have the prefix.
+ *
+ *                    (sptr != cptr && IsServer(sptr) means
+ *                    the prefix specified servername. (?)
+ *
+ *                    (sptr != cptr && !IsServer(sptr) means
+ *                    that message originated from a remote
+ *                    user (not local).
+ *
+ *            combining
+ *
+ *            (!IsServer(sptr)) means that, sptr can safely
+ *            taken as defining the target structure of the
+ *            message in this server.
+ *
+ *    *Always* true (if 'parse' and others are working correct):
+ *
+ *    1)      sptr->from == cptr  (note: cptr->from == cptr)
+ *
+ *    2)      MyConnect(sptr) <=> sptr == cptr (e.g. sptr
+ *            *cannot* be a local connection, unless it's
+ *            actually cptr!). [MyConnect(x) should probably
+ *            be defined as (x == x->from) --msa ]
+ *
+ *    parc    number of variable parameter strings (if zero,
+ *            parv is allowed to be NULL)
+ *
+ *    parv    a NULL terminated list of parameter pointers,
+ *
+ *                    parv[0], sender (prefix string), if not present
+ *                            this points to an empty string.
+ *                    parv[1]...parv[parc-1]
+ *                            pointers to additional parameters
+ *                    parv[parc] == NULL, *always*
+ *
+ *            note:   it is guaranteed that parv[0]..parv[parc-1] are all
+ *                    non-NULL pointers.
+ */
+#include "config.h"
+
+#include "handlers.h"
+#include "client.h"
+#include "ircd.h"
+#include "ircd_chattr.h"
+#include "ircd_log.h"
+#include "ircd_reply.h"
+#include "ircd_string.h"
+#include "numeric.h"
+#include "numnicks.h"
+#include "s_auth.h"
+#include "s_debug.h"
+#include "s_misc.h"
+#include "s_user.h"
+#include "send.h"
+
+/* #include <assert.h> -- Now using assert in ircd_log.h */
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+/*
+ * m_user
+ *
+ * parv[0] = sender prefix
+ * parv[1] = username           (login name, account)
+ * parv[2] = host name          (ignored)
+ * parv[3] = server name        (ignored)
+ * parv[4] = users real name info
+ */
+int m_user(struct Client *cptr, struct Client *sptr, int parc, char *parv[])
+{
+  char*        username;
+  char*        term;
+  const char*  info;
+  unsigned int mode_request;
+
+  assert(0 != cptr);
+  assert(cptr == sptr);
+
+  if (IsServerPort(cptr))
+    return exit_client(cptr, cptr, &me, "Use a different port");
+
+  if (parc < 5)
+    return need_more_params(sptr, "USER");
+
+  /* 
+   * Copy parameters into better documenting variables
+   *
+   * ignore host part if u@h
+   */
+  if (!EmptyString(parv[1])) {
+    if ((username = strchr(parv[1], '@')))
+      *username = '\0';
+    username = parv[1];
+  }
+  else
+    username = "NoUser";
+
+  if ((mode_request = strtoul(parv[2], &term, 10)) != 0
+      && term != NULL && *term == '\0')
+  {
+    char *invisible[4] = { NULL, NULL, "+i", NULL };
+    char *wallops[4] = { NULL, NULL, "+w" , NULL };
+    /* These bitmask values are codified in RFC 2812, showing
+     * ... well, something that is probably best not said.
+     */
+    if (mode_request & 8)
+      set_user_mode(cptr, sptr, 3, invisible, ALLOWMODES_ANY);
+    if (mode_request & 4)
+      set_user_mode(cptr, sptr, 3, wallops, ALLOWMODES_ANY);
+  }
+  else if (parv[2][0] == '+')
+  {
+    char *user_modes[4];
+    user_modes[0] = NULL;
+    user_modes[1] = NULL;
+    user_modes[2] = parv[2];
+    user_modes[3] = NULL;
+    set_user_mode(cptr, sptr, 3, user_modes, ALLOWMODES_ANY);
+  }
+
+  info     = (EmptyString(parv[4])) ? "No Info" : parv[4];
+
+  return auth_set_user(cli_auth(cptr), username, parv[2], parv[3], info);
+}
+