import winsup-2000-02-17 snapshot

1 files changed, 200 insertions, 0 deletions

diff --git a/winsup/cygwin/uinfo.cc b/winsup/cygwin/uinfo.cc
new file mode 100644
index 0000000..fbf2eca
--- /dev/null
+++ b/winsup/cygwin/uinfo.cc
@@ -0,0 +1,200 @@
+/* uinfo.cc: user info (uid, gid, etc...)
+
+   Copyright 1996, 1997, 1998 Cygnus Solutions.
+
+This file is part of Cygwin.
+
+This software is a copyrighted work licensed under the terms of the
+Cygwin license.  Please consult the file "CYGWIN_LICENSE" for
+details. */
+
+#include <pwd.h>
+#include "winsup.h"
+#include <utmp.h>
+#include <limits.h>
+#include <unistd.h>
+#include "autoload.h"
+#include <stdlib.h>
+#include <wchar.h>
+#include <lm.h>
+
+/* FIXME: shouldn't violate internal object space -- these two
+   should be static inside grp.cc */
+void read_etc_group ();
+extern int group_in_memory_p;
+
+char *
+internal_getlogin (struct pinfo *pi)
+{
+  DWORD username_len = MAX_USER_NAME;
+  LPWKSTA_USER_INFO_1 ui = NULL;
+
+  if (! pi)
+    api_fatal ("pinfo pointer is NULL!\n");
+
+  if (os_being_run == winNT)
+    {
+      int ret = NetWkstaUserGetInfo (NULL, 1, (LPBYTE *)&ui);
+      if (! ret)
+        {
+          wcstombs (pi->domain,
+                    ui->wkui1_logon_domain,
+                    (wcslen (ui->wkui1_logon_domain) + 1) * sizeof (WCHAR));
+          debug_printf ("Domain: %s", pi->domain);
+          wcstombs (pi->logsrv,
+                    ui->wkui1_logon_server,
+                    (wcslen (ui->wkui1_logon_server) + 1) * sizeof (WCHAR));
+          if (! *pi->logsrv)
+            {
+              LPWSTR logon_srv = NULL;
+
+              if (!NetGetAnyDCName (NULL,
+                                    ui->wkui1_logon_domain,
+                                    (LPBYTE *)&logon_srv))
+                wcstombs (pi->logsrv,
+                          logon_srv, // filter leading double backslashes
+                          (wcslen (logon_srv) + 1) * sizeof (WCHAR));
+              if (logon_srv)
+                NetApiBufferFree (logon_srv);
+              debug_printf ("AnyDC Server: %s", pi->logsrv);
+            }
+          else
+            debug_printf ("Logon Server: %s", pi->logsrv);
+          wcstombs (pi->username,
+                    ui->wkui1_username,
+                    (wcslen (ui->wkui1_username) + 1) * sizeof (WCHAR));
+          debug_printf ("Windows Username: %s", pi->username);
+          NetApiBufferFree (ui);
+        }
+      else
+        {
+          debug_printf ("%d = NetWkstaUserGetInfo ()\n", ret);
+          if (! GetUserName (pi->username, &username_len))
+            strcpy (pi->username, "unknown");
+        }
+        if (!lookup_name (pi->username, pi->logsrv, pi->psid))
+          {
+            debug_printf ("myself->psid = NULL");
+            pi->psid = NULL;
+          }
+        else if (allow_ntsec)
+          {
+            extern BOOL get_pw_sid (PSID, struct passwd*);
+            struct passwd *pw;
+            char psidbuf[40];
+            PSID psid = (PSID) psidbuf;
+
+            while ((pw = getpwent ()) != NULL)
+              if (get_pw_sid (psid, pw) && EqualSid (pi->psid, psid))
+                {
+                  strcpy (pi->username, pw->pw_name);
+                  break;
+                }
+            endpwent ();
+          }
+    }
+  else
+    {
+      debug_printf ("myself->psid = NULL");
+      pi->psid = NULL;
+      if (! GetUserName (pi->username, &username_len))
+        strcpy (pi->username, "unknown");
+    }
+  debug_printf ("Cygwins Username: %s\n", pi->username);
+  return pi->username;
+}
+
+void
+uinfo_init ()
+{
+  struct passwd *p;
+
+  if (myself->username[0])
+    return;
+
+  myself->psid = (PSID) myself->sidbuf;
+  if ((p = getpwnam (internal_getlogin (myself))) != NULL)
+    {
+      /* calling getpwnam assures us that /etc/password has been
+	 read in, but we can't be sure about /etc/group */
+
+      if (!group_in_memory_p)
+	read_etc_group ();
+
+      myself->uid = p->pw_uid;
+      myself->gid = p->pw_gid;
+    }
+  else
+    {
+      myself->uid = DEFAULT_UID;
+      myself->gid = DEFAULT_GID;
+    }
+}
+
+extern "C" char *
+getlogin (void)
+{
+#ifdef _MT_SAFE
+  char *this_username=_reent_winsup()->_username;
+#else
+  static NO_COPY char this_username[MAX_USER_NAME];
+#endif
+
+  uinfo_init ();
+  return strcpy (this_username, myself->username);
+}
+
+extern "C" uid_t
+getuid (void)
+{
+  return myself->uid;
+}
+
+extern "C" gid_t
+getgid (void)
+{
+  return myself->gid;
+}
+
+extern "C" uid_t
+geteuid (void)
+{
+  return getuid ();
+}
+
+extern "C" gid_t
+getegid (void)
+{
+  return getgid ();
+}
+
+/* Not quite right - cuserid can change, getlogin can't */
+extern "C" char *
+cuserid (char *src)
+{
+  if (src)
+    {
+      strcpy (src, getlogin ());
+      return src;
+    }
+  else
+    {
+      return getlogin ();
+    }
+}
+
+LoadDLLinitfunc (netapi32)
+{
+  HANDLE h;
+
+  if ((h = LoadLibrary ("netapi32.dll")) != NULL)
+    netapi32_handle = h;
+  else if (! netapi32_handle)
+    api_fatal ("could not load netapi32.dll. %d", GetLastError ());
+  return 0;
+}
+LoadDLLinit (netapi32)
+LoadDLLfunc (NetWkstaUserGetInfo, NetWkstaUserGetInfo@12, netapi32)
+LoadDLLfunc (NetGetAnyDCName, NetGetAnyDCName@12, netapi32)
+LoadDLLfunc (NetApiBufferFree, NetApiBufferFree@4, netapi32)
+