server/include/network.h

/*
    CrossFire, A Multiplayer game for X-windows

    Copyright (C) 1992 Frank Tore Johansen
    Copyright (C) 2002 Mark Wedel & Crossfire Development Team
    Copyright (C) 2005, 2006 The Crossfire+ Development Team

    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 2 of the License, 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.

    The authors can be reached via e-mail at crossfire@schmorp.de
*/

/* This file defines various flags that both the new client and
 * newserver uses.  These should never be changed, only expanded.
 * Changing them will likely cause all old clients to not work properly.
 * While called newclient, it is really used by both the client and
 * server to keep some values the same.
 *
 * Name format is CS_(command)_(flag)
 * CS = Client/Server.
 * (command) is protocol command, ie ITEM
 * (flag) is the flag name
 */

/* It is trivial to keep a link of copy of this file in the client
 * or server area.  But keeping one common file should make things
 * more reliable, as both the client and server will definately be
 * talking about the same values.
 */


#ifndef NETWORK_H
#define NETWORK_H

#include <cstdarg>

/* Maximum size of any packet we expect.  Using this makes it so we don't need to
 * allocated and deallocated the same buffer over and over again and the price
 * of using a bit of extra memory.  It also makes the code simpler.
 *
 * The size must be the same in the server and the client (stupid), and its also NOT
 * the maximum buffer size as one would expect, but the maximum buffer size + 1.
 */
#define MAXSOCKBUF 10240


#define CS_QUERY_YESNO  0x1     /* Yes/no question */
#define CS_QUERY_SINGLECHAR 0x2 /* Single character response expected */
#define CS_QUERY_HIDEINPUT 0x4  /* Hide input being entered */

#define CS_SAY_NORMAL   0x1     /* Normal say command */
#define CS_SAY_SHOUT    0x2     /* Text is shouted. */
#define CS_SAY_GSAY     0x4     /* Text is group say command */

/* These are multiplication values that should be used when changing 
 * floats to ints, and vice version.  MULTI is integer representatin
 * (float to int), MULTF is float, for going from int to float.
 */
#define FLOAT_MULTI     100000
#define FLOAT_MULTF     100000.0

/* ID's for the various stats that get sent across. */

#define CS_STAT_HP       1
#define CS_STAT_MAXHP    2
#define CS_STAT_SP       3
#define CS_STAT_MAXSP    4
#define CS_STAT_STR      5
#define CS_STAT_INT      6
#define CS_STAT_WIS      7
#define CS_STAT_DEX      8
#define CS_STAT_CON      9
#define CS_STAT_CHA     10
#define CS_STAT_EXP     11
#define CS_STAT_LEVEL   12
#define CS_STAT_WC      13
#define CS_STAT_AC      14
#define CS_STAT_DAM     15
#define CS_STAT_ARMOUR  16
#define CS_STAT_SPEED   17
#define CS_STAT_FOOD    18
#define CS_STAT_WEAP_SP 19
#define CS_STAT_RANGE   20
#define CS_STAT_TITLE   21
#define CS_STAT_POW     22
#define CS_STAT_GRACE   23
#define CS_STAT_MAXGRACE        24
#define CS_STAT_FLAGS   25
#define CS_STAT_WEIGHT_LIM      26
#define CS_STAT_EXP64   28
#define CS_STAT_SPELL_ATTUNE    29
#define CS_STAT_SPELL_REPEL     30
#define CS_STAT_SPELL_DENY      31

/* Start & end of resistances, inclusive. */
#define CS_STAT_RESIST_START    100
#define CS_STAT_RESIST_END      117
#define CS_STAT_RES_PHYS        100
#define CS_STAT_RES_MAG         101
#define CS_STAT_RES_FIRE        102
#define CS_STAT_RES_ELEC        103
#define CS_STAT_RES_COLD        104
#define CS_STAT_RES_CONF        105
#define CS_STAT_RES_ACID        106
#define CS_STAT_RES_DRAIN       107
#define CS_STAT_RES_GHOSTHIT    108
#define CS_STAT_RES_POISON      109
#define CS_STAT_RES_SLOW        110
#define CS_STAT_RES_PARA        111
#define CS_STAT_TURN_UNDEAD     112
#define CS_STAT_RES_FEAR        113
#define CS_STAT_RES_DEPLETE     114
#define CS_STAT_RES_DEATH       115
#define CS_STAT_RES_HOLYWORD    116
#define CS_STAT_RES_BLIND       117

/* Start & end of skill experience + skill level, inclusive. */
#define CS_STAT_SKILLEXP_START 118
#define CS_STAT_SKILLEXP_END 129
#define CS_STAT_SKILLEXP_AGILITY 118
#define CS_STAT_SKILLEXP_AGLEVEL 119
#define CS_STAT_SKILLEXP_PERSONAL 120
#define CS_STAT_SKILLEXP_PELEVEL 121
#define CS_STAT_SKILLEXP_MENTAL 122
#define CS_STAT_SKILLEXP_MELEVEL 123
#define CS_STAT_SKILLEXP_PHYSIQUE 124
#define CS_STAT_SKILLEXP_PHLEVEL 125
#define CS_STAT_SKILLEXP_MAGIC 126
#define CS_STAT_SKILLEXP_MALEVEL 127
#define CS_STAT_SKILLEXP_WISDOM 128
#define CS_STAT_SKILLEXP_WILEVEL 129

/* CS_STAT_SKILLINFO is used as the starting index point.  Skill number->name
 * map is generated dynamically for the client, so a bunch of entries will
 * be used here.  CS_NUM_SKILLS does not match how many skills there really
 * are - instead, it is used as a range of values so that the client
 * can have some idea how many skill categories there may be.
 */
#define CS_STAT_SKILLINFO   140
#define CS_NUM_SKILLS        50

/* These are used with CS_STAT_FLAGS above to communicate S->C what the
 * server thinks the fireon & runon states are.
 */
#define SF_FIREON   0x01
#define SF_RUNON    0x02

/* The following are the color flags passed to new_draw_info.
 *
 * We also set up some control flags
 *
 * NDI = New Draw Info
 */

/* Color specifications - note these match the order in xutil.c */
/* Note 2:  Black, the default color, is 0.  Thus, it does not need to
 * be implicitly specified.
 */
#define NDI_BLACK       0
#define NDI_WHITE       1
#define NDI_NAVY        2
#define NDI_RED         3
#define NDI_ORANGE      4
#define NDI_BLUE        5       /* Actually, it is Dodger Blue */
#define NDI_DK_ORANGE   6       /* DarkOrange2 */
#define NDI_GREEN       7       /* SeaGreen */
#define NDI_LT_GREEN    8       /* DarkSeaGreen,  which is actually paler */
                                /* Than seagreen - also background color */
#define NDI_GREY        9
#define NDI_BROWN       10      /* Sienna */
#define NDI_GOLD        11
#define NDI_TAN         12      /* Khaki */

#define NDI_MAX_COLOR   12      /* Last value in */
#define NDI_COLOR_MASK  0xff    /* Gives lots of room for expansion - we are */
                                /* using an int anyways, so we have the space */
                                /* to still do all the flags */


#define NDI_UNIQUE      0x100   /* Print this out immediately, don't buffer */
#define NDI_ALL         0x200   /* Inform all players of this message */

/* Flags for the item command */
enum {a_none, a_readied, a_wielded, a_worn, a_active, a_applied};
#define F_APPLIED       0x000F
#define F_LOCATION      0x00F0
#define F_UNPAID        0x0200
#define F_MAGIC         0x0400
#define F_CURSED        0x0800
#define F_DAMNED        0x1000
#define F_OPEN          0x2000
#define F_NOPICK        0x4000
#define F_LOCKED        0x8000

#define CF_FACE_NONE    0
#define CF_FACE_BITMAP  1
#define CF_FACE_XPM     2
#define CF_FACE_PNG     3
#define CF_FACE_CACHE   0x10

/* Used in the new_face structure on the magicmap field.  Low bits
 * are color informatin.  For now, only high bit information we need
 * is floor information.
 */
#define FACE_FLOOR      0x80
#define FACE_WALL       0x40    /* Or'd into the color value by the server
                                 * right before sending.
                                 */
#define FACE_COLOR_MASK 0xf

#define UPD_LOCATION    0x01
#define UPD_FLAGS       0x02
#define UPD_WEIGHT      0x04
#define UPD_FACE        0x08
#define UPD_NAME        0x10
#define UPD_ANIM        0x20
#define UPD_ANIMSPEED   0x40
#define UPD_NROF        0x80

/* The flag values sent by the updspell command */
#define UPD_SP_MANA     0x01
#define UPD_SP_GRACE    0x02
#define UPD_SP_DAMAGE   0x04

#define SOUND_NORMAL    0
#define SOUND_SPELL     1

struct data
{
  unsigned int len;
  const void *ptr;

  data   (const void *ptr, int len) : len (len), ptr (ptr) { }
  data   (const char *str) : len (strlen (str ? str : 0)), ptr ((void *)str) { }
  data   (const shstr &sh) : len (sh.length ()), ptr ((void *)&sh) { }
};

struct data8
{
  unsigned int len;
  const void *ptr;

  data8  (const void *ptr, int len) : len (len), ptr (ptr) { }
  data8  (const char *str) : len (strlen (str ? str : 0)), ptr ((void *)str) { }
  data8  (const shstr &sh) : len (sh.length ()), ptr ((void *)&sh) { }
};

struct data16
{
  unsigned int len;
  const void *ptr;

  data16 (const void *ptr, int len) : len (len), ptr (ptr) { }
  data16 (const char *str) : len (strlen (str ? str : 0)), ptr ((void *)str) { }
  data16 (const shstr &sh) : len (sh.length ()), ptr ((void *)&sh) { }
};

/* Contains the base information we use to make up a packet we want to send. */
struct packet
{
  enum { bufsize = MAXSOCKBUF };
  enum { hdrlen  = 2 }; // keep this many bytes free at the front

  // strategy: only check on variable-length adds
  // and allow 256 bytes for any headers.
  uint8 *cur;
  uint8 buf_ [hdrlen + bufsize + 256];

  packet () { reset (); }

  uint8  operator [](unsigned int i) const { return buf_ [i + hdrlen]; }
  uint8 &operator [](unsigned int i)       { return buf_ [i + hdrlen]; }

        uint8 *buf ()       { return buf_ + hdrlen; }
  const uint8 *buf () const { return buf_ + hdrlen; }

  void reset (int offset = 0) { cur = buf () + offset; }
  int length () const { return cur - buf (); }
  int room () { return bufsize - (cur - buf ()); }

  // unchecked
  packet &operator <<(uint8  v) { *cur++ = v; return *this; }

  packet &operator <<(uint16 v) { return *this << uint8  (v >>  8) << uint8  (v); }
  packet &operator <<(uint32 v) { return *this << uint16 (v >> 16) << uint16 (v); }
  packet &operator <<(uint64 v) { return *this << uint32 (v >> 32) << uint32 (v); }

  packet &operator <<(sint8  v) { return *this << (uint8 )v; }
  packet &operator <<(sint16 v) { return *this << (uint16)v; }
  packet &operator <<(sint32 v) { return *this << (uint32)v; }
  packet &operator <<(sint64 v) { return *this << (uint64)v; }

  // checked
  packet &operator <<(const data   &v);
  packet &operator <<(const data8  &v);
  packet &operator <<(const data16 &v);

  packet &operator <<(const char *v);
  packet &operator <<(const shstr &sh) { return *this << data (&sh, sh.length ()); }

  void vprintf (const char *format, va_list ap);

  void printf (const char *format, ...)
  {
    va_list ap;
    va_start (ap, format);
    vprintf (format, ap);
    va_end (ap);
  }
};

inline uint16 net_uint16 (uint8 *data) { return (data [0] << 8) | data [1]; }
inline uint32 net_uint32 (uint8 *data) { return (net_uint16 (data) << 16) | net_uint16 (data + 2); }
inline sint16 net_sint16 (uint8 *data) { return sint16 (net_uint16 (data)); }
inline sint16 net_sint32 (uint8 *data) { return sint32 (net_uint32 (data)); }

struct CS_Stats
{
  int     ibytes;       /* ibytes, obytes are bytes in, out */
  int     obytes;
  short   max_conn;     /* Maximum connections received */
  time_t  time_start;   /* When we started logging this */
};

extern CS_Stats cst_tot, cst_lst;

#endif

Revision:	1.4
Committed:	Sat Dec 16 03:08:26 2006 UTC (17 years, 5 months ago) by root
Content type:	text/plain
Branch:	MAIN
Changes since 1.3:	+13 -3 lines
Log Message:	- socket i/o is completely asynchronous now - some command sare handled immediately - others (most palying related commands) are queued for later (as of now synchronous) processing - specifying a max queue length (in seconds) is possible, but disabled - also add some syntax sugar for network code
#	User	Rev	Content
1	root	1.1	/*
2			CrossFire, A Multiplayer game for X-windows
3
4			Copyright (C) 1992 Frank Tore Johansen
5			Copyright (C) 2002 Mark Wedel & Crossfire Development Team
6			Copyright (C) 2005, 2006 The Crossfire+ Development Team
7
8			This program is free software; you can redistribute it and/or modify
9			it under the terms of the GNU General Public License as published by
10			the Free Software Foundation; either version 2 of the License, or
11			(at your option) any later version.
12
13			This program is distributed in the hope that it will be useful,
14			but WITHOUT ANY WARRANTY; without even the implied warranty of
15			MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16			GNU General Public License for more details.
17
18			You should have received a copy of the GNU General Public License
19			along with this program; if not, write to the Free Software
20			Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21
22	root	1.3	The authors can be reached via e-mail at crossfire@schmorp.de
23	root	1.1	*/
24
25			/* This file defines various flags that both the new client and
26			* newserver uses. These should never be changed, only expanded.
27			* Changing them will likely cause all old clients to not work properly.
28			* While called newclient, it is really used by both the client and
29			* server to keep some values the same.
30			*
31			* Name format is CS_(command)_(flag)
32			* CS = Client/Server.
33			* (command) is protocol command, ie ITEM
34			* (flag) is the flag name
35			*/
36
37			/* It is trivial to keep a link of copy of this file in the client
38			* or server area. But keeping one common file should make things
39			* more reliable, as both the client and server will definately be
40			* talking about the same values.
41			*/
42
43
44	root	1.4	#ifndef NETWORK_H
45			#define NETWORK_H
46
47			#include <cstdarg>
48	root	1.1
49			/* Maximum size of any packet we expect. Using this makes it so we don't need to
50			* allocated and deallocated the same buffer over and over again and the price
51			* of using a bit of extra memory. It also makes the code simpler.
52			*
53			* The size must be the same in the server and the client (stupid), and its also NOT
54			* the maximum buffer size as one would expect, but the maximum buffer size + 1.
55			*/
56			#define MAXSOCKBUF 10240
57
58
59			#define CS_QUERY_YESNO 0x1 /* Yes/no question */
60			#define CS_QUERY_SINGLECHAR 0x2 /* Single character response expected */
61			#define CS_QUERY_HIDEINPUT 0x4 /* Hide input being entered */
62
63			#define CS_SAY_NORMAL 0x1 /* Normal say command */
64			#define CS_SAY_SHOUT 0x2 /* Text is shouted. */
65			#define CS_SAY_GSAY 0x4 /* Text is group say command */
66
67			/* These are multiplication values that should be used when changing
68			* floats to ints, and vice version. MULTI is integer representatin
69			* (float to int), MULTF is float, for going from int to float.
70			*/
71			#define FLOAT_MULTI 100000
72			#define FLOAT_MULTF 100000.0
73
74			/* ID's for the various stats that get sent across. */
75
76			#define CS_STAT_HP 1
77			#define CS_STAT_MAXHP 2
78			#define CS_STAT_SP 3
79			#define CS_STAT_MAXSP 4
80			#define CS_STAT_STR 5
81			#define CS_STAT_INT 6
82			#define CS_STAT_WIS 7
83			#define CS_STAT_DEX 8
84			#define CS_STAT_CON 9
85			#define CS_STAT_CHA 10
86			#define CS_STAT_EXP 11
87			#define CS_STAT_LEVEL 12
88			#define CS_STAT_WC 13
89			#define CS_STAT_AC 14
90			#define CS_STAT_DAM 15
91			#define CS_STAT_ARMOUR 16
92			#define CS_STAT_SPEED 17
93			#define CS_STAT_FOOD 18
94			#define CS_STAT_WEAP_SP 19
95			#define CS_STAT_RANGE 20
96			#define CS_STAT_TITLE 21
97			#define CS_STAT_POW 22
98			#define CS_STAT_GRACE 23
99			#define CS_STAT_MAXGRACE 24
100			#define CS_STAT_FLAGS 25
101			#define CS_STAT_WEIGHT_LIM 26
102			#define CS_STAT_EXP64 28
103			#define CS_STAT_SPELL_ATTUNE 29
104			#define CS_STAT_SPELL_REPEL 30
105			#define CS_STAT_SPELL_DENY 31
106
107			/* Start & end of resistances, inclusive. */
108			#define CS_STAT_RESIST_START 100
109			#define CS_STAT_RESIST_END 117
110			#define CS_STAT_RES_PHYS 100
111			#define CS_STAT_RES_MAG 101
112			#define CS_STAT_RES_FIRE 102
113			#define CS_STAT_RES_ELEC 103
114			#define CS_STAT_RES_COLD 104
115			#define CS_STAT_RES_CONF 105
116			#define CS_STAT_RES_ACID 106
117			#define CS_STAT_RES_DRAIN 107
118			#define CS_STAT_RES_GHOSTHIT 108
119			#define CS_STAT_RES_POISON 109
120			#define CS_STAT_RES_SLOW 110
121			#define CS_STAT_RES_PARA 111
122			#define CS_STAT_TURN_UNDEAD 112
123			#define CS_STAT_RES_FEAR 113
124			#define CS_STAT_RES_DEPLETE 114
125			#define CS_STAT_RES_DEATH 115
126			#define CS_STAT_RES_HOLYWORD 116
127			#define CS_STAT_RES_BLIND 117
128
129			/* Start & end of skill experience + skill level, inclusive. */
130			#define CS_STAT_SKILLEXP_START 118
131			#define CS_STAT_SKILLEXP_END 129
132			#define CS_STAT_SKILLEXP_AGILITY 118
133			#define CS_STAT_SKILLEXP_AGLEVEL 119
134			#define CS_STAT_SKILLEXP_PERSONAL 120
135			#define CS_STAT_SKILLEXP_PELEVEL 121
136			#define CS_STAT_SKILLEXP_MENTAL 122
137			#define CS_STAT_SKILLEXP_MELEVEL 123
138			#define CS_STAT_SKILLEXP_PHYSIQUE 124
139			#define CS_STAT_SKILLEXP_PHLEVEL 125
140			#define CS_STAT_SKILLEXP_MAGIC 126
141			#define CS_STAT_SKILLEXP_MALEVEL 127
142			#define CS_STAT_SKILLEXP_WISDOM 128
143			#define CS_STAT_SKILLEXP_WILEVEL 129
144
145			/* CS_STAT_SKILLINFO is used as the starting index point. Skill number->name
146			* map is generated dynamically for the client, so a bunch of entries will
147			* be used here. CS_NUM_SKILLS does not match how many skills there really
148			* are - instead, it is used as a range of values so that the client
149			* can have some idea how many skill categories there may be.
150			*/
151			#define CS_STAT_SKILLINFO 140
152			#define CS_NUM_SKILLS 50
153
154			/* These are used with CS_STAT_FLAGS above to communicate S->C what the
155			* server thinks the fireon & runon states are.
156			*/
157			#define SF_FIREON 0x01
158			#define SF_RUNON 0x02
159
160			/* The following are the color flags passed to new_draw_info.
161			*
162			* We also set up some control flags
163			*
164			* NDI = New Draw Info
165			*/
166
167			/* Color specifications - note these match the order in xutil.c */
168			/* Note 2: Black, the default color, is 0. Thus, it does not need to
169			* be implicitly specified.
170			*/
171			#define NDI_BLACK 0
172			#define NDI_WHITE 1
173			#define NDI_NAVY 2
174			#define NDI_RED 3
175			#define NDI_ORANGE 4
176			#define NDI_BLUE 5 /* Actually, it is Dodger Blue */
177			#define NDI_DK_ORANGE 6 /* DarkOrange2 */
178			#define NDI_GREEN 7 /* SeaGreen */
179			#define NDI_LT_GREEN 8 /* DarkSeaGreen, which is actually paler */
180			/* Than seagreen - also background color */
181			#define NDI_GREY 9
182			#define NDI_BROWN 10 /* Sienna */
183			#define NDI_GOLD 11
184			#define NDI_TAN 12 /* Khaki */
185
186			#define NDI_MAX_COLOR 12 /* Last value in */
187			#define NDI_COLOR_MASK 0xff /* Gives lots of room for expansion - we are */
188			/* using an int anyways, so we have the space */
189			/* to still do all the flags */
190
191
192			#define NDI_UNIQUE 0x100 /* Print this out immediately, don't buffer */
193			#define NDI_ALL 0x200 /* Inform all players of this message */
194
195			/* Flags for the item command */
196			enum {a_none, a_readied, a_wielded, a_worn, a_active, a_applied};
197			#define F_APPLIED 0x000F
198			#define F_LOCATION 0x00F0
199			#define F_UNPAID 0x0200
200			#define F_MAGIC 0x0400
201			#define F_CURSED 0x0800
202			#define F_DAMNED 0x1000
203			#define F_OPEN 0x2000
204			#define F_NOPICK 0x4000
205			#define F_LOCKED 0x8000
206
207			#define CF_FACE_NONE 0
208			#define CF_FACE_BITMAP 1
209			#define CF_FACE_XPM 2
210			#define CF_FACE_PNG 3
211			#define CF_FACE_CACHE 0x10
212
213			/* Used in the new_face structure on the magicmap field. Low bits
214			* are color informatin. For now, only high bit information we need
215			* is floor information.
216			*/
217			#define FACE_FLOOR 0x80
218			#define FACE_WALL 0x40 /* Or'd into the color value by the server
219			* right before sending.
220			*/
221			#define FACE_COLOR_MASK 0xf
222
223			#define UPD_LOCATION 0x01
224			#define UPD_FLAGS 0x02
225			#define UPD_WEIGHT 0x04
226			#define UPD_FACE 0x08
227			#define UPD_NAME 0x10
228			#define UPD_ANIM 0x20
229			#define UPD_ANIMSPEED 0x40
230			#define UPD_NROF 0x80
231
232			/* The flag values sent by the updspell command */
233			#define UPD_SP_MANA 0x01
234			#define UPD_SP_GRACE 0x02
235			#define UPD_SP_DAMAGE 0x04
236
237			#define SOUND_NORMAL 0
238			#define SOUND_SPELL 1
239
240			struct data
241			{
242			unsigned int len;
243			const void *ptr;
244
245			data (const void *ptr, int len) : len (len), ptr (ptr) { }
246			data (const char str) : len (strlen (str ? str : 0)), ptr ((void )str) { }
247			data (const shstr &sh) : len (sh.length ()), ptr ((void *)&sh) { }
248			};
249
250			struct data8
251			{
252			unsigned int len;
253			const void *ptr;
254
255			data8 (const void *ptr, int len) : len (len), ptr (ptr) { }
256			data8 (const char str) : len (strlen (str ? str : 0)), ptr ((void )str) { }
257			data8 (const shstr &sh) : len (sh.length ()), ptr ((void *)&sh) { }
258			};
259
260			struct data16
261			{
262			unsigned int len;
263			const void *ptr;
264
265			data16 (const void *ptr, int len) : len (len), ptr (ptr) { }
266			data16 (const char str) : len (strlen (str ? str : 0)), ptr ((void )str) { }
267			data16 (const shstr &sh) : len (sh.length ()), ptr ((void *)&sh) { }
268			};
269
270			/* Contains the base information we use to make up a packet we want to send. */
271			struct packet
272			{
273			enum { bufsize = MAXSOCKBUF };
274			enum { hdrlen = 2 }; // keep this many bytes free at the front
275
276			// strategy: only check on variable-length adds
277			// and allow 256 bytes for any headers.
278			uint8 *cur;
279			uint8 buf_ [hdrlen + bufsize + 256];
280
281			packet () { reset (); }
282
283			uint8 operator [](unsigned int i) const { return buf_ [i + hdrlen]; }
284			uint8 &operator [](unsigned int i) { return buf_ [i + hdrlen]; }
285
286			uint8 *buf () { return buf_ + hdrlen; }
287			const uint8 *buf () const { return buf_ + hdrlen; }
288
289			void reset (int offset = 0) { cur = buf () + offset; }
290			int length () const { return cur - buf (); }
291			int room () { return bufsize - (cur - buf ()); }
292
293			// unchecked
294			packet &operator <<(uint8 v) { cur++ = v; return this; }
295
296			packet &operator <<(uint16 v) { return *this << uint8 (v >> 8) << uint8 (v); }
297			packet &operator <<(uint32 v) { return *this << uint16 (v >> 16) << uint16 (v); }
298			packet &operator <<(uint64 v) { return *this << uint32 (v >> 32) << uint32 (v); }
299
300			packet &operator <<(sint8 v) { return *this << (uint8 )v; }
301			packet &operator <<(sint16 v) { return *this << (uint16)v; }
302			packet &operator <<(sint32 v) { return *this << (uint32)v; }
303			packet &operator <<(sint64 v) { return *this << (uint64)v; }
304
305			// checked
306			packet &operator <<(const data &v);
307			packet &operator <<(const data8 &v);
308			packet &operator <<(const data16 &v);
309
310			packet &operator <<(const char *v);
311			packet &operator <<(const shstr &sh) { return *this << data (&sh, sh.length ()); }
312
313	root	1.4	void vprintf (const char *format, va_list ap);
314
315			void printf (const char *format, ...)
316			{
317			va_list ap;
318			va_start (ap, format);
319			vprintf (format, ap);
320			va_end (ap);
321			}
322	root	1.1	};
323
324			inline uint16 net_uint16 (uint8 *data) { return (data [0] << 8) \| data [1]; }
325			inline uint32 net_uint32 (uint8 *data) { return (net_uint16 (data) << 16) \| net_uint16 (data + 2); }
326			inline sint16 net_sint16 (uint8 *data) { return sint16 (net_uint16 (data)); }
327			inline sint16 net_sint32 (uint8 *data) { return sint32 (net_uint32 (data)); }
328
329			struct CS_Stats
330			{
331			int ibytes; /* ibytes, obytes are bytes in, out */
332			int obytes;
333			short max_conn; /* Maximum connections received */
334			time_t time_start; /* When we started logging this */
335			};
336
337			extern CS_Stats cst_tot, cst_lst;
338
339			#endif
340