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+/*
+
+Copyright 2001-2005 Oswald Buddenhagen <ossi@kde.org>
+
+Permission to use, copy, modify, distribute, and sell this software and its
+documentation for any purpose is hereby granted without fee, provided that
+the above copyright notice appear in all copies and that both that
+copyright notice and this permission notice appear in supporting
+documentation.
+
+The above copyright notice and this permission notice shall be included
+in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+OTHER DEALINGS IN THE SOFTWARE.
+
+Except as contained in this notice, the name of a copyright holder shall
+not be used in advertising or otherwise to promote the sale, use or
+other dealings in this Software without prior written authorization
+from the copyright holder.
+
+*/
+
+/*
+ * xdm - display manager daemon
+ * Author: Keith Packard, MIT X Consortium
+ *
+ * interface to xdm's external greeter and config reader
+ */
+
+#ifndef GREET_H
+#define GREET_H
+
+#include <config.h>
+
+#define DEBUG_CORE 0x01
+#define DEBUG_CONFIG 0x02
+#define DEBUG_GREET 0x04
+#define DEBUG_HLPCON 0x08
+#define DEBUG_WSESS 0x10
+#define DEBUG_WCONFIG 0x20
+#define DEBUG_WGREET 0x40
+#define DEBUG_NOSYSLOG 0x80
+#define DEBUG_AUTH 0x100
+#define DEBUG_VALGRIND 0x400
+#define DEBUG_STRACE 0x800
+
+#ifndef TRUE
+# define TRUE 1
+# define FALSE 0
+#endif
+
+#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ > 4)
+# define ATTR_UNUSED __attribute__((unused))
+# define ATTR_NORETURN __attribute__((noreturn))
+# define ATTR_PRINTFLIKE(fmt,var) __attribute__((format(printf,fmt,var)))
+#else
+# define ATTR_UNUSED
+# define ATTR_NORETURN
+# define ATTR_PRINTFLIKE(fmt,var)
+#endif
+
+#define as(ar) ((int)(sizeof(ar)/sizeof(ar[0])))
+
+#define __stringify(x) #x
+#define stringify(x) __stringify(x)
+
+/*
+ * Exit codes for fork()ed session process, greeter, and config reader
+ */
+#define EX_NORMAL 30 /* do whatever seems appropriate */
+#define EX_REMANAGE_DPY 31 /* force remanage; same as EX_NORMAL, but cannot return to reserve mode immediately */
+#define EX_UNMANAGE_DPY 32 /* force deletion */
+#define EX_RESERVER_DPY 33 /* force server termination */
+#define EX_AL_RESERVER_DPY 34 /* reserver; maybe, auto-(re-)login */
+#define EX_OPENFAILED_DPY 35 /* XOpenDisplay failed, retry */
+#define EX_RESERVE 37 /* put in reserve mode */
+#ifdef XDMCP
+#define EX_REMOTE 38 /* start -query-ing X-server */
+#define EX_MAX EX_REMOTE
+#else
+#define EX_MAX EX_RESERVE
+#endif
+
+/*
+ * Command codes core -> greeter
+ */
+#define G_Greet 1 /* get login; bidi */
+#define G_ErrorGreet 2 /* print failed auto-login */
+#ifdef XDMCP
+#define G_Choose 3 /* run chooser; bidi */
+# define G_Ch_AddHost 301
+# define G_Ch_ChangeHost 302
+# define G_Ch_RemoveHost 303
+# define G_Ch_BadHost 304
+# define G_Ch_Exit 305
+#endif
+#define G_SessMan 4 /* start "session manager" */
+#define G_ConfShutdown 5 /* confirm forced shutdown */
+#define G_GreetTimed 6 /* get login; timed login permitted */
+
+#ifdef XDMCP
+#define G_Ch_Refresh 10 /* XXX change */
+#define G_Ch_RegisterHost 11 /* str name XXX change */
+#define G_Ch_DirectChoice 12 /* str name XXX change */
+#endif
+
+/*
+ * Status/command codes greeter -> core
+ */
+#define G_Ready 0 /* nop */
+#define G_Cancel 1 /* abort login, etc. */
+
+#define G_DGreet 2 /* get login */
+#ifdef XDMCP
+#define G_DChoose 3 /* run chooser */
+#endif
+
+#define G_Shutdown 101 /* 5*int, string; async */
+# define SHUT_REBOOT 1 /* how */
+# define SHUT_HALT 2
+# define SHUT_CONSOLE -1 /* pseudo-code */
+# define SHUT_SCHEDULE 0 /* when; config only */
+# define SHUT_TRYNOW 1
+# define SHUT_FORCENOW 2
+# define SHUT_CANCEL 0 /* force */
+# define SHUT_FORCEMY 1
+# define SHUT_FORCE 2
+# define SHUT_ASK 3
+# define TO_INF 0x7fffffff
+#define G_SessionExit 102 /* int code; async */
+#define G_GetCfg 103 /* int what; int sts, <variable> */
+#define G_SetupDpy 104 /* ; int <syncer> */
+#define G_ReadDmrc 105 /* str user; int sts - curdmrc */
+#define G_GetDmrc 106 /* str key; str value - curdmrc */
+/*#define G_ResetDmrc 107*/ /* ; async - newdmrc */
+#define G_PutDmrc 108 /* str key, str value; async - newdmrc */
+#define G_Verify 109 /* str type; ..., int V_ret */
+#define G_VerifyRootOK 110 /* str type; ..., int V_ret */
+#define G_List 111 /* int flags; ?*(str,str,[int,]str,str,int), int 0 */
+# define lstRemote 1
+# define lstPassive 2
+# define lstTTY 4
+# define isSelf 1
+# define isTTY 2
+#define G_QueryShutdown 112 /* ; 5*int; string */
+#define G_Activate 113 /* int vt; async */
+#define G_ListBootOpts 114 /* ; int sts, [argv opts, int dflt, int cur] */
+# define BO_OK 0
+# define BO_NOMAN -1
+# define BO_NOENT -2
+# define BO_IO -3
+#define G_Console 116 /* ; async */
+#define G_AutoLogin 117 /* ; async */
+
+/*
+ * Command codes core -> config reader
+ */
+#define GC_Files 1 /* get file list */
+#define GC_GetConf 2 /* get a config group */
+# define GC_gGlobal 1 /* get global config array */
+#ifdef XDMCP
+# define GC_gXaccess 3 /* get Xaccess equivalent */
+#endif
+# define GC_gDisplay 4 /* get per-display config array */
+
+/*
+ * Error code core -> greeter
+ */
+#define GE_Ok 0
+#define GE_NoFkt 1 /* no such function (only for extensions!) */
+#define GE_Error 2 /* internal error, like OOM */
+/* for config reading */
+#define GE_NoEnt 10 /* no such config entry */
+#define GE_BadType 11 /* unknown config entry type */
+/* for dmrc reading */
+#define GE_NoUser 20 /* no such user */
+#define GE_NoFile 21 /* no such file */
+#define GE_Denied 22 /* permission denied */
+
+/*
+ * Log levels.
+ * Used independently in core, greeter & config reader.
+ */
+#define DM_DEBUG 0
+#define DM_INFO 1
+#define DM_WARN 2
+#define DM_ERR 3
+#define DM_PANIC 4
+
+/*
+ * Status codes from Verify
+ */
+/* terminal status codes */
+#define V_OK 0
+#define V_FAIL 10 /* whatever, already reported with V_MSG_* */
+#define V_AUTH 11 /* authentication failed */
+/* non-terminal status codes */
+#define V_MSG_INFO 110 /* info message attached */
+#define V_MSG_ERR 111 /* error message attached (null for generic) */
+#define V_PUT_USER 112 /* user name attached; only with pam & no user send */
+#define V_CHTOK 113 /* password expired; change now */
+#define V_CHTOK_AUTH 114 /* password expired; change now, but authenticate first */
+#define V_PRE_OK 115 /* authentication succeeded, continue with password change */
+/* queries */
+#define V_GET_TEXT 200 /* str prompt, int echo, int ndelay; str return, int tag */
+# define V_IS_SECRET 1
+# define V_IS_USER 2
+# define V_IS_PASSWORD 4
+# define V_IS_OLDPASSWORD 8
+# define V_IS_NEWPASSWORD 16
+#define V_GET_BINARY 201 /* array prompt, int ndelay; array return */
+
+/*
+ * Config/Runtime data keys
+ */
+#define C_WHO_MASK 0x00ff0000 /* Non-zero for proprietary extensions (see manufacturer table [to be written]) */
+#define C_TYPE_MASK 0x0f000000 /* Type of the value */
+# define C_TYPE_INT 0x00000000 /* Integer */
+# define C_TYPE_STR 0x01000000 /* String */
+# define C_TYPE_ARGV 0x02000000 /* 0-terminated Array of Strings */
+# define C_TYPE_ARR 0x03000000 /* Array (only when XDCMP is enabled) */
+#define C_PRIVATE 0xf0000000 /* Private, don't make it visible to interfaces! */
+
+/* display variables */
+#define C_isLocal (C_TYPE_INT | 0x200)
+#define C_hasConsole (C_TYPE_INT | 0x201)
+#define C_isAuthorized (C_TYPE_INT | 0x202)
+
+/**
+ ** for struct display
+ **/
+
+#define d_location 1
+#define dLocal 1 /* server runs on local host */
+#define dForeign 0 /* server runs on remote host */
+
+#define d_lifetime 6
+#define dPermanent 4 /* display restarted when session exits */
+#define dReserve 2 /* display not restarted when session exits */
+#define dTransient 0 /* display removed when session exits */
+
+#ifdef XDMCP
+#define d_origin 8
+#else
+#define d_origin 0 /* clever, huh? :) */
+#endif
+#define dFromXDMCP 8 /* started with XDMCP */
+#define dFromFile 0 /* started via entry in servers file */
+
+#ifdef XDMCP
+/**
+ ** for xdmcp acls
+ **/
+
+/*
+ * flags in acl entries
+ */
+#define a_notAllowed 1 /* both direct and indirect */
+#define a_notBroadcast 2 /* only direct */
+#define a_useChooser 2 /* only indirect */
+
+/*
+ * type of host entries
+ */
+#define HOST_ALIAS 0
+#define HOST_ADDRESS 1
+#define HOST_PATTERN 2
+#define HOST_BROADCAST 3
+
+#endif
+
+#endif /* GREET_H */