2 Copyright (C) 1996-1997 Id Software, Inc.
4 This program is free software; you can redistribute it and/or
5 modify it under the terms of the GNU General Public License
6 as published by the Free Software Foundation; either version 2
7 of the License, or (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
13 See the GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
20 // common.c -- misc functions used in client and server
30 cvar_t registered = {0, "registered","0", "indicates if this is running registered quake (whether gfx/pop.lmp was found)"};
31 cvar_t cmdline = {0, "cmdline","0", "contains commandline the engine was launched with"};
33 char com_token[MAX_INPUTLINE];
35 const char **com_argv;
39 const char *gamedirname1;
40 const char *gamedirname2;
41 const char *gamescreenshotname;
42 const char *gameuserdirname;
43 char com_modname[MAX_OSPATH] = "";
47 ============================================================================
51 ============================================================================
54 short ShortSwap (short l)
66 unsigned char b1,b2,b3,b4;
73 return ((int)b1<<24) + ((int)b2<<16) + ((int)b3<<8) + b4;
76 float FloatSwap (float f)
86 dat2.b[0] = dat1.b[3];
87 dat2.b[1] = dat1.b[2];
88 dat2.b[2] = dat1.b[1];
89 dat2.b[3] = dat1.b[0];
94 // Extract integers from buffers
96 unsigned int BuffBigLong (const unsigned char *buffer)
98 return (buffer[0] << 24) | (buffer[1] << 16) | (buffer[2] << 8) | buffer[3];
101 unsigned short BuffBigShort (const unsigned char *buffer)
103 return (buffer[0] << 8) | buffer[1];
106 unsigned int BuffLittleLong (const unsigned char *buffer)
108 return (buffer[3] << 24) | (buffer[2] << 16) | (buffer[1] << 8) | buffer[0];
111 unsigned short BuffLittleShort (const unsigned char *buffer)
113 return (buffer[1] << 8) | buffer[0];
118 ============================================================================
122 ============================================================================
125 // this is a 16 bit, non-reflected CRC using the polynomial 0x1021
126 // and the initial and final xor values shown below... in other words, the
127 // CCITT standard CRC used by XMODEM
129 #define CRC_INIT_VALUE 0xffff
130 #define CRC_XOR_VALUE 0x0000
132 static unsigned short crctable[256] =
134 0x0000, 0x1021, 0x2042, 0x3063, 0x4084, 0x50a5, 0x60c6, 0x70e7,
135 0x8108, 0x9129, 0xa14a, 0xb16b, 0xc18c, 0xd1ad, 0xe1ce, 0xf1ef,
136 0x1231, 0x0210, 0x3273, 0x2252, 0x52b5, 0x4294, 0x72f7, 0x62d6,
137 0x9339, 0x8318, 0xb37b, 0xa35a, 0xd3bd, 0xc39c, 0xf3ff, 0xe3de,
138 0x2462, 0x3443, 0x0420, 0x1401, 0x64e6, 0x74c7, 0x44a4, 0x5485,
139 0xa56a, 0xb54b, 0x8528, 0x9509, 0xe5ee, 0xf5cf, 0xc5ac, 0xd58d,
140 0x3653, 0x2672, 0x1611, 0x0630, 0x76d7, 0x66f6, 0x5695, 0x46b4,
141 0xb75b, 0xa77a, 0x9719, 0x8738, 0xf7df, 0xe7fe, 0xd79d, 0xc7bc,
142 0x48c4, 0x58e5, 0x6886, 0x78a7, 0x0840, 0x1861, 0x2802, 0x3823,
143 0xc9cc, 0xd9ed, 0xe98e, 0xf9af, 0x8948, 0x9969, 0xa90a, 0xb92b,
144 0x5af5, 0x4ad4, 0x7ab7, 0x6a96, 0x1a71, 0x0a50, 0x3a33, 0x2a12,
145 0xdbfd, 0xcbdc, 0xfbbf, 0xeb9e, 0x9b79, 0x8b58, 0xbb3b, 0xab1a,
146 0x6ca6, 0x7c87, 0x4ce4, 0x5cc5, 0x2c22, 0x3c03, 0x0c60, 0x1c41,
147 0xedae, 0xfd8f, 0xcdec, 0xddcd, 0xad2a, 0xbd0b, 0x8d68, 0x9d49,
148 0x7e97, 0x6eb6, 0x5ed5, 0x4ef4, 0x3e13, 0x2e32, 0x1e51, 0x0e70,
149 0xff9f, 0xefbe, 0xdfdd, 0xcffc, 0xbf1b, 0xaf3a, 0x9f59, 0x8f78,
150 0x9188, 0x81a9, 0xb1ca, 0xa1eb, 0xd10c, 0xc12d, 0xf14e, 0xe16f,
151 0x1080, 0x00a1, 0x30c2, 0x20e3, 0x5004, 0x4025, 0x7046, 0x6067,
152 0x83b9, 0x9398, 0xa3fb, 0xb3da, 0xc33d, 0xd31c, 0xe37f, 0xf35e,
153 0x02b1, 0x1290, 0x22f3, 0x32d2, 0x4235, 0x5214, 0x6277, 0x7256,
154 0xb5ea, 0xa5cb, 0x95a8, 0x8589, 0xf56e, 0xe54f, 0xd52c, 0xc50d,
155 0x34e2, 0x24c3, 0x14a0, 0x0481, 0x7466, 0x6447, 0x5424, 0x4405,
156 0xa7db, 0xb7fa, 0x8799, 0x97b8, 0xe75f, 0xf77e, 0xc71d, 0xd73c,
157 0x26d3, 0x36f2, 0x0691, 0x16b0, 0x6657, 0x7676, 0x4615, 0x5634,
158 0xd94c, 0xc96d, 0xf90e, 0xe92f, 0x99c8, 0x89e9, 0xb98a, 0xa9ab,
159 0x5844, 0x4865, 0x7806, 0x6827, 0x18c0, 0x08e1, 0x3882, 0x28a3,
160 0xcb7d, 0xdb5c, 0xeb3f, 0xfb1e, 0x8bf9, 0x9bd8, 0xabbb, 0xbb9a,
161 0x4a75, 0x5a54, 0x6a37, 0x7a16, 0x0af1, 0x1ad0, 0x2ab3, 0x3a92,
162 0xfd2e, 0xed0f, 0xdd6c, 0xcd4d, 0xbdaa, 0xad8b, 0x9de8, 0x8dc9,
163 0x7c26, 0x6c07, 0x5c64, 0x4c45, 0x3ca2, 0x2c83, 0x1ce0, 0x0cc1,
164 0xef1f, 0xff3e, 0xcf5d, 0xdf7c, 0xaf9b, 0xbfba, 0x8fd9, 0x9ff8,
165 0x6e17, 0x7e36, 0x4e55, 0x5e74, 0x2e93, 0x3eb2, 0x0ed1, 0x1ef0
168 unsigned short CRC_Block(const unsigned char *data, size_t size)
170 unsigned short crc = CRC_INIT_VALUE;
172 crc = (crc << 8) ^ crctable[(crc >> 8) ^ (*data++)];
173 return crc ^ CRC_XOR_VALUE;
177 static unsigned char chktbl[1024 + 4] =
179 0x78,0xd2,0x94,0xe3,0x41,0xec,0xd6,0xd5,0xcb,0xfc,0xdb,0x8a,0x4b,0xcc,0x85,0x01,
180 0x23,0xd2,0xe5,0xf2,0x29,0xa7,0x45,0x94,0x4a,0x62,0xe3,0xa5,0x6f,0x3f,0xe1,0x7a,
181 0x64,0xed,0x5c,0x99,0x29,0x87,0xa8,0x78,0x59,0x0d,0xaa,0x0f,0x25,0x0a,0x5c,0x58,
182 0xfb,0x00,0xa7,0xa8,0x8a,0x1d,0x86,0x80,0xc5,0x1f,0xd2,0x28,0x69,0x71,0x58,0xc3,
183 0x51,0x90,0xe1,0xf8,0x6a,0xf3,0x8f,0xb0,0x68,0xdf,0x95,0x40,0x5c,0xe4,0x24,0x6b,
184 0x29,0x19,0x71,0x3f,0x42,0x63,0x6c,0x48,0xe7,0xad,0xa8,0x4b,0x91,0x8f,0x42,0x36,
185 0x34,0xe7,0x32,0x55,0x59,0x2d,0x36,0x38,0x38,0x59,0x9b,0x08,0x16,0x4d,0x8d,0xf8,
186 0x0a,0xa4,0x52,0x01,0xbb,0x52,0xa9,0xfd,0x40,0x18,0x97,0x37,0xff,0xc9,0x82,0x27,
187 0xb2,0x64,0x60,0xce,0x00,0xd9,0x04,0xf0,0x9e,0x99,0xbd,0xce,0x8f,0x90,0x4a,0xdd,
188 0xe1,0xec,0x19,0x14,0xb1,0xfb,0xca,0x1e,0x98,0x0f,0xd4,0xcb,0x80,0xd6,0x05,0x63,
189 0xfd,0xa0,0x74,0xa6,0x86,0xf6,0x19,0x98,0x76,0x27,0x68,0xf7,0xe9,0x09,0x9a,0xf2,
190 0x2e,0x42,0xe1,0xbe,0x64,0x48,0x2a,0x74,0x30,0xbb,0x07,0xcc,0x1f,0xd4,0x91,0x9d,
191 0xac,0x55,0x53,0x25,0xb9,0x64,0xf7,0x58,0x4c,0x34,0x16,0xbc,0xf6,0x12,0x2b,0x65,
192 0x68,0x25,0x2e,0x29,0x1f,0xbb,0xb9,0xee,0x6d,0x0c,0x8e,0xbb,0xd2,0x5f,0x1d,0x8f,
193 0xc1,0x39,0xf9,0x8d,0xc0,0x39,0x75,0xcf,0x25,0x17,0xbe,0x96,0xaf,0x98,0x9f,0x5f,
194 0x65,0x15,0xc4,0x62,0xf8,0x55,0xfc,0xab,0x54,0xcf,0xdc,0x14,0x06,0xc8,0xfc,0x42,
195 0xd3,0xf0,0xad,0x10,0x08,0xcd,0xd4,0x11,0xbb,0xca,0x67,0xc6,0x48,0x5f,0x9d,0x59,
196 0xe3,0xe8,0x53,0x67,0x27,0x2d,0x34,0x9e,0x9e,0x24,0x29,0xdb,0x69,0x99,0x86,0xf9,
197 0x20,0xb5,0xbb,0x5b,0xb0,0xf9,0xc3,0x67,0xad,0x1c,0x9c,0xf7,0xcc,0xef,0xce,0x69,
198 0xe0,0x26,0x8f,0x79,0xbd,0xca,0x10,0x17,0xda,0xa9,0x88,0x57,0x9b,0x15,0x24,0xba,
199 0x84,0xd0,0xeb,0x4d,0x14,0xf5,0xfc,0xe6,0x51,0x6c,0x6f,0x64,0x6b,0x73,0xec,0x85,
200 0xf1,0x6f,0xe1,0x67,0x25,0x10,0x77,0x32,0x9e,0x85,0x6e,0x69,0xb1,0x83,0x00,0xe4,
201 0x13,0xa4,0x45,0x34,0x3b,0x40,0xff,0x41,0x82,0x89,0x79,0x57,0xfd,0xd2,0x8e,0xe8,
202 0xfc,0x1d,0x19,0x21,0x12,0x00,0xd7,0x66,0xe5,0xc7,0x10,0x1d,0xcb,0x75,0xe8,0xfa,
203 0xb6,0xee,0x7b,0x2f,0x1a,0x25,0x24,0xb9,0x9f,0x1d,0x78,0xfb,0x84,0xd0,0x17,0x05,
204 0x71,0xb3,0xc8,0x18,0xff,0x62,0xee,0xed,0x53,0xab,0x78,0xd3,0x65,0x2d,0xbb,0xc7,
205 0xc1,0xe7,0x70,0xa2,0x43,0x2c,0x7c,0xc7,0x16,0x04,0xd2,0x45,0xd5,0x6b,0x6c,0x7a,
206 0x5e,0xa1,0x50,0x2e,0x31,0x5b,0xcc,0xe8,0x65,0x8b,0x16,0x85,0xbf,0x82,0x83,0xfb,
207 0xde,0x9f,0x36,0x48,0x32,0x79,0xd6,0x9b,0xfb,0x52,0x45,0xbf,0x43,0xf7,0x0b,0x0b,
208 0x19,0x19,0x31,0xc3,0x85,0xec,0x1d,0x8c,0x20,0xf0,0x3a,0xfa,0x80,0x4d,0x2c,0x7d,
209 0xac,0x60,0x09,0xc0,0x40,0xee,0xb9,0xeb,0x13,0x5b,0xe8,0x2b,0xb1,0x20,0xf0,0xce,
210 0x4c,0xbd,0xc6,0x04,0x86,0x70,0xc6,0x33,0xc3,0x15,0x0f,0x65,0x19,0xfd,0xc2,0xd3,
212 // map checksum goes here
217 unsigned char COM_BlockSequenceCRCByteQW(unsigned char *base, int length, int sequence)
220 unsigned char chkb[60 + 4];
222 p = chktbl + (sequence % (sizeof(chktbl) - 8));
226 memcpy(chkb, base, length);
228 chkb[length] = (sequence & 0xff) ^ p[0];
229 chkb[length+1] = p[1];
230 chkb[length+2] = ((sequence>>8) & 0xff) ^ p[2];
231 chkb[length+3] = p[3];
233 return CRC_Block(chkb, length + 4) & 0xff;
237 ==============================================================================
241 Handles byte ordering and avoids alignment errors
242 ==============================================================================
249 void MSG_WriteChar (sizebuf_t *sb, int c)
253 buf = SZ_GetSpace (sb, 1);
257 void MSG_WriteByte (sizebuf_t *sb, int c)
261 buf = SZ_GetSpace (sb, 1);
265 void MSG_WriteShort (sizebuf_t *sb, int c)
269 buf = SZ_GetSpace (sb, 2);
274 void MSG_WriteLong (sizebuf_t *sb, int c)
278 buf = SZ_GetSpace (sb, 4);
280 buf[1] = (c>>8)&0xff;
281 buf[2] = (c>>16)&0xff;
285 void MSG_WriteFloat (sizebuf_t *sb, float f)
295 dat.l = LittleLong (dat.l);
297 SZ_Write (sb, (unsigned char *)&dat.l, 4);
300 void MSG_WriteString (sizebuf_t *sb, const char *s)
303 MSG_WriteChar (sb, 0);
305 SZ_Write (sb, (unsigned char *)s, (int)strlen(s)+1);
308 void MSG_WriteUnterminatedString (sizebuf_t *sb, const char *s)
311 SZ_Write (sb, (unsigned char *)s, (int)strlen(s));
314 void MSG_WriteCoord13i (sizebuf_t *sb, float f)
317 MSG_WriteShort (sb, (int)(f * 8.0 + 0.5));
319 MSG_WriteShort (sb, (int)(f * 8.0 - 0.5));
322 void MSG_WriteCoord16i (sizebuf_t *sb, float f)
325 MSG_WriteShort (sb, (int)(f + 0.5));
327 MSG_WriteShort (sb, (int)(f - 0.5));
330 void MSG_WriteCoord32f (sizebuf_t *sb, float f)
332 MSG_WriteFloat (sb, f);
335 void MSG_WriteCoord (sizebuf_t *sb, float f, protocolversion_t protocol)
337 if (protocol == PROTOCOL_QUAKE || protocol == PROTOCOL_QUAKEDP || protocol == PROTOCOL_NEHAHRAMOVIE || protocol == PROTOCOL_QUAKEWORLD)
338 MSG_WriteCoord13i (sb, f);
339 else if (protocol == PROTOCOL_DARKPLACES1)
340 MSG_WriteCoord32f (sb, f);
341 else if (protocol == PROTOCOL_DARKPLACES2 || protocol == PROTOCOL_DARKPLACES3 || protocol == PROTOCOL_DARKPLACES4)
342 MSG_WriteCoord16i (sb, f);
344 MSG_WriteCoord32f (sb, f);
347 void MSG_WriteVector (sizebuf_t *sb, float *v, protocolversion_t protocol)
349 MSG_WriteCoord (sb, v[0], protocol);
350 MSG_WriteCoord (sb, v[1], protocol);
351 MSG_WriteCoord (sb, v[2], protocol);
354 // LordHavoc: round to nearest value, rather than rounding toward zero, fixes crosshair problem
355 void MSG_WriteAngle8i (sizebuf_t *sb, float f)
358 MSG_WriteByte (sb, (int)(f*(256.0/360.0) + 0.5) & 255);
360 MSG_WriteByte (sb, (int)(f*(256.0/360.0) - 0.5) & 255);
363 void MSG_WriteAngle16i (sizebuf_t *sb, float f)
366 MSG_WriteShort (sb, (int)(f*(65536.0/360.0) + 0.5) & 65535);
368 MSG_WriteShort (sb, (int)(f*(65536.0/360.0) - 0.5) & 65535);
371 void MSG_WriteAngle32f (sizebuf_t *sb, float f)
373 MSG_WriteFloat (sb, f);
376 void MSG_WriteAngle (sizebuf_t *sb, float f, protocolversion_t protocol)
378 if (protocol == PROTOCOL_QUAKE || protocol == PROTOCOL_QUAKEDP || protocol == PROTOCOL_NEHAHRAMOVIE || protocol == PROTOCOL_DARKPLACES1 || protocol == PROTOCOL_DARKPLACES2 || protocol == PROTOCOL_DARKPLACES3 || protocol == PROTOCOL_DARKPLACES4 || protocol == PROTOCOL_QUAKEWORLD)
379 MSG_WriteAngle8i (sb, f);
381 MSG_WriteAngle16i (sb, f);
388 qboolean msg_badread;
390 void MSG_BeginReading (void)
396 int MSG_ReadLittleShort (void)
398 if (msg_readcount+2 > net_message.cursize)
404 return (short)(net_message.data[msg_readcount-2] | (net_message.data[msg_readcount-1]<<8));
407 int MSG_ReadBigShort (void)
409 if (msg_readcount+2 > net_message.cursize)
415 return (short)((net_message.data[msg_readcount-2]<<8) + net_message.data[msg_readcount-1]);
418 int MSG_ReadLittleLong (void)
420 if (msg_readcount+4 > net_message.cursize)
426 return net_message.data[msg_readcount-4] | (net_message.data[msg_readcount-3]<<8) | (net_message.data[msg_readcount-2]<<16) | (net_message.data[msg_readcount-1]<<24);
429 int MSG_ReadBigLong (void)
431 if (msg_readcount+4 > net_message.cursize)
437 return (net_message.data[msg_readcount-4]<<24) + (net_message.data[msg_readcount-3]<<16) + (net_message.data[msg_readcount-2]<<8) + net_message.data[msg_readcount-1];
440 float MSG_ReadLittleFloat (void)
447 if (msg_readcount+4 > net_message.cursize)
453 dat.l = net_message.data[msg_readcount-4] | (net_message.data[msg_readcount-3]<<8) | (net_message.data[msg_readcount-2]<<16) | (net_message.data[msg_readcount-1]<<24);
457 float MSG_ReadBigFloat (void)
464 if (msg_readcount+4 > net_message.cursize)
470 dat.l = (net_message.data[msg_readcount-4]<<24) | (net_message.data[msg_readcount-3]<<16) | (net_message.data[msg_readcount-2]<<8) | net_message.data[msg_readcount-1];
474 char *MSG_ReadString (void)
476 static char string[MAX_INPUTLINE];
478 for (l = 0;l < (int) sizeof(string) - 1 && (c = MSG_ReadByte()) != -1 && c != 0;l++)
484 int MSG_ReadBytes (int numbytes, unsigned char *out)
487 for (l = 0;l < numbytes && (c = MSG_ReadByte()) != -1;l++)
492 float MSG_ReadCoord13i (void)
494 return MSG_ReadLittleShort() * (1.0/8.0);
497 float MSG_ReadCoord16i (void)
499 return (signed short) MSG_ReadLittleShort();
502 float MSG_ReadCoord32f (void)
504 return MSG_ReadLittleFloat();
507 float MSG_ReadCoord (protocolversion_t protocol)
509 if (protocol == PROTOCOL_QUAKE || protocol == PROTOCOL_QUAKEDP || protocol == PROTOCOL_NEHAHRAMOVIE || protocol == PROTOCOL_QUAKEWORLD)
510 return MSG_ReadCoord13i();
511 else if (protocol == PROTOCOL_DARKPLACES1)
512 return MSG_ReadCoord32f();
513 else if (protocol == PROTOCOL_DARKPLACES2 || protocol == PROTOCOL_DARKPLACES3 || protocol == PROTOCOL_DARKPLACES4)
514 return MSG_ReadCoord16i();
516 return MSG_ReadCoord32f();
519 void MSG_ReadVector (float *v, protocolversion_t protocol)
521 v[0] = MSG_ReadCoord(protocol);
522 v[1] = MSG_ReadCoord(protocol);
523 v[2] = MSG_ReadCoord(protocol);
526 // LordHavoc: round to nearest value, rather than rounding toward zero, fixes crosshair problem
527 float MSG_ReadAngle8i (void)
529 return (signed char) MSG_ReadByte () * (360.0/256.0);
532 float MSG_ReadAngle16i (void)
534 return (signed short)MSG_ReadShort () * (360.0/65536.0);
537 float MSG_ReadAngle32f (void)
539 return MSG_ReadFloat ();
542 float MSG_ReadAngle (protocolversion_t protocol)
544 if (protocol == PROTOCOL_QUAKE || protocol == PROTOCOL_QUAKEDP || protocol == PROTOCOL_NEHAHRAMOVIE || protocol == PROTOCOL_DARKPLACES1 || protocol == PROTOCOL_DARKPLACES2 || protocol == PROTOCOL_DARKPLACES3 || protocol == PROTOCOL_DARKPLACES4 || protocol == PROTOCOL_QUAKEWORLD)
545 return MSG_ReadAngle8i ();
547 return MSG_ReadAngle16i ();
551 //===========================================================================
553 void SZ_Clear (sizebuf_t *buf)
558 unsigned char *SZ_GetSpace (sizebuf_t *buf, int length)
562 if (buf->cursize + length > buf->maxsize)
564 if (!buf->allowoverflow)
565 Host_Error ("SZ_GetSpace: overflow without allowoverflow set");
567 if (length > buf->maxsize)
568 Host_Error ("SZ_GetSpace: %i is > full buffer size", length);
570 buf->overflowed = true;
571 Con_Print("SZ_GetSpace: overflow\n");
575 data = buf->data + buf->cursize;
576 buf->cursize += length;
581 void SZ_Write (sizebuf_t *buf, const unsigned char *data, int length)
583 memcpy (SZ_GetSpace(buf,length),data,length);
586 // LordHavoc: thanks to Fuh for bringing the pure evil of SZ_Print to my
587 // attention, it has been eradicated from here, its only (former) use in
588 // all of darkplaces.
590 static char *hexchar = "0123456789ABCDEF";
591 void Com_HexDumpToConsole(const unsigned char *data, int size)
595 char *cur, *flushpointer;
596 const unsigned char *d;
598 flushpointer = text + 512;
599 for (i = 0;i < size;)
606 *cur++ = hexchar[(i >> 12) & 15];
607 *cur++ = hexchar[(i >> 8) & 15];
608 *cur++ = hexchar[(i >> 4) & 15];
609 *cur++ = hexchar[(i >> 0) & 15];
612 for (j = 0;j < 16;j++)
616 *cur++ = hexchar[(d[j] >> 4) & 15];
617 *cur++ = hexchar[(d[j] >> 0) & 15];
628 for (j = 0;j < 16;j++)
632 // color change prefix character has to be treated specially
633 if (d[j] == STRING_COLOR_TAG)
635 *cur++ = STRING_COLOR_TAG;
636 *cur++ = STRING_COLOR_TAG;
638 else if (d[j] >= ' ')
648 if (cur >= flushpointer || i >= size)
657 void SZ_HexDumpToConsole(const sizebuf_t *buf)
659 Com_HexDumpToConsole(buf->data, buf->cursize);
663 //============================================================================
670 Parse a token out of a string
673 int COM_ParseToken(const char **datapointer, int returnnewline)
677 const char *data = *datapointer;
694 for (;*data <= ' ' && ((*data != '\n' && *data != '\r') || !returnnewline);data++)
704 // handle Windows line ending
705 if (data[0] == '\r' && data[1] == '\n')
708 if (data[0] == '/' && data[1] == '/')
711 while (*data && *data != '\n' && *data != '\r')
715 else if (data[0] == '/' && data[1] == '*')
719 while (*data && (data[0] != '*' || data[1] != '/'))
724 else if (*data == '\"')
727 for (data++;*data != '\"';data++)
729 if (!*data || len >= (int)sizeof(com_token) - 1)
743 else if (data[1] == '\'')
748 else if (data[1] == 'n')
753 else if (data[1] == '\\')
756 com_token[len++] = c;
759 *datapointer = data+1;
762 else if (*data == '\'')
765 for (data++;*data != '\'';data++)
767 if (!*data || len >= (int)sizeof(com_token) - 1)
781 else if (data[1] == '\'')
786 else if (data[1] == 'n')
791 else if (data[1] == '\\')
794 com_token[len++] = c;
797 *datapointer = data+1;
800 else if (*data == '\r')
802 // translate Mac line ending to UNIX
803 com_token[len++] = '\n';
808 else if (*data == '\n' || *data == '{' || *data == '}' || *data == ')' || *data == '(' || *data == ']' || *data == '[' || *data == '\'' || *data == ':' || *data == ',' || *data == ';')
811 com_token[len++] = *data++;
819 for (;*data > ' ' && *data != '{' && *data != '}' && *data != ')' && *data != '(' && *data != ']' && *data != '[' && *data != '\'' && *data != ':' && *data != ',' && *data != ';' && *data != '\'' && *data != '"';data++)
821 if (len >= (int)sizeof(com_token) - 1)
835 else if (data[1] == '\'')
840 else if (data[1] == 'n')
845 else if (data[1] == '\\')
848 com_token[len++] = c;
858 COM_ParseTokenConsole
860 Parse a token out of a string, behaving like the qwcl console
863 int COM_ParseTokenConsole(const char **datapointer)
866 const char *data = *datapointer;
879 for (;*data <= ' ';data++)
889 if (*data == '/' && data[1] == '/')
892 while (*data && *data != '\n' && *data != '\r')
896 else if (*data == '\"')
899 for (data++;*data != '\"';data++)
901 if (!*data || len >= (int)sizeof(com_token) - 1)
907 com_token[len++] = *data;
910 *datapointer = data+1;
915 for (;*data > ' ';data++)
917 if (len >= (int)sizeof(com_token) - 1)
923 com_token[len++] = *data;
937 Returns the position (1 to argc-1) in the program's argument list
938 where the given parameter apears, or 0 if not present
941 int COM_CheckParm (const char *parm)
945 for (i=1 ; i<com_argc ; i++)
948 continue; // NEXTSTEP sometimes clears appkit vars.
949 if (!strcmp (parm,com_argv[i]))
956 //===========================================================================
960 typedef struct gamemode_info_s
962 const char* prog_name;
964 const char* gamename;
965 const char* gamedirname1;
966 const char* gamedirname2;
967 const char* gamescreenshotname;
968 const char* gameuserdirname;
971 static const gamemode_info_t gamemode_info [] =
972 {// prog_name cmdline gamename gamedirname gamescreenshotname
975 // COMMANDLINEOPTION: Game: -quake runs the game Quake (default)
976 { "", "-quake", "DarkPlaces-Quake", "id1", NULL, "dp", "darkplaces" },
978 // COMMANDLINEOPTION: Game: -hipnotic runs Quake mission pack 1: The Scourge of Armagon
979 { "hipnotic", "-hipnotic", "Darkplaces-Hipnotic", "id1", "hipnotic", "dp", "darkplaces" },
981 // COMMANDLINEOPTION: Game: -rogue runs Quake mission pack 2: The Dissolution of Eternity
982 { "rogue", "-rogue", "Darkplaces-Rogue", "id1", "rogue", "dp", "darkplaces" },
984 // COMMANDLINEOPTION: Game: -nehahra runs The Seal of Nehahra movie and game
985 { "nehahra", "-nehahra", "DarkPlaces-Nehahra", "id1", "nehahra", "dp", "darkplaces" },
987 // COMMANDLINEOPTION: Game: -nexuiz runs the multiplayer game Nexuiz
988 { "nexuiz", "-nexuiz", "Nexuiz", "data", NULL, "nexuiz", "nexuiz" },
990 // COMMANDLINEOPTION: Game: -transfusion runs Transfusion (the recreation of Blood in Quake)
991 { "transfusion", "-transfusion", "Transfusion", "basetf", NULL, "transfusion", "transfusion" },
993 // COMMANDLINEOPTION: Game: -goodvsbad2 runs the psychadelic RTS FPS game Good Vs Bad 2
994 { "gvb2", "-goodvsbad2", "GoodVs.Bad2", "rts", NULL, "gvb2", "gvb2" },
996 // COMMANDLINEOPTION: Game: -teu runs The Evil Unleashed (this option is obsolete as they are not using darkplaces)
997 { "teu", "-teu", "TheEvilUnleashed", "baseteu", NULL, "teu", "teu" },
999 // COMMANDLINEOPTION: Game: -battlemech runs the multiplayer topdown deathmatch game BattleMech
1000 { "battlemech", "-battlemech", "Battlemech", "base", NULL, "battlemech", "battlemech" },
1002 // COMMANDLINEOPTION: Game: -zymotic runs the singleplayer game Zymotic
1003 { "zymotic", "-zymotic", "Zymotic", "basezym", NULL, "zymotic", "zymotic" },
1005 // COMMANDLINEOPTION: Game: -setheral runs the multiplayer game Setheral
1006 { "setheral", "-setheral", "Setheral", "data", NULL, "setheral", "setheral" },
1008 // COMMANDLINEOPTION: Game: -som runs the multiplayer game Son Of Man
1009 { "som", "-som", "Son of Man", "id1", "sonofman", "som", "darkplaces" },
1011 // COMMANDLINEOPTION: Game: -tenebrae runs the graphics test mod known as Tenebrae (some features not implemented)
1012 { "tenebrae", "-tenebrae", "DarkPlaces-Tenebrae", "id1", "tenebrae", "dp", "darkplaces" },
1014 // COMMANDLINEOPTION: Game: -neoteric runs the game Neoteric
1015 { "neoteric", "-neoteric", "Neoteric", "id1", "neobase", "neo", "darkplaces" },
1017 // COMMANDLINEOPTION: Game: -openquartz runs the game OpenQuartz, a standalone GPL replacement of the quake content
1018 { "openquartz", "-openquartz", "OpenQuartz", "id1", NULL, "openquartz", "darkplaces" },
1020 // COMMANDLINEOPTION: Game: -prydon runs the topdown point and click action-RPG Prydon Gate
1021 { "prydon", "-prydon", "PrydonGate", "id1", "prydon", "prydon", "darkplaces" },
1023 // COMMANDLINEOPTION: Game: -netherworld runs the game Netherworld: Dark Master
1024 { "netherworld", "-netherworld", "Netherworld: Dark Master", "id1", "netherworld", "nw", "darkplaces" },
1026 // COMMANDLINEOPTION: Game: -thehunted runs the game The Hunted
1027 { "thehunted", "-thehunted", "The Hunted", "thdata", NULL, "th", "thehunted" },
1028 // GAME_DEFEATINDETAIL2
1029 // COMMANDLINEOPTION: Game: -did2 runs the game Defeat In Detail 2
1030 { "did2", "-did2", "Defeat In Detail 2", "data", NULL, "did2_", "did2" },
1032 // COMMANDLINEOPTION: Game: -darsana runs the game Darsana
1033 { "darsana", "-darsana", "Darsana", "ddata", NULL, "darsana", "darsana" },
1034 // GAME_CONTAGIONTHEORY
1035 // COMMANDLINEOPTION: Game: -contagiontheory runs the game Contagion Theory
1036 { "contagiontheory", "-contagiontheory", "Contagion Theory", "ctdata", NULL, "ct", "contagiontheory" },
1039 void COM_InitGameType (void)
1041 char name [MAX_OSPATH];
1044 FS_StripExtension (com_argv[0], name, sizeof (name));
1045 COM_ToLowerString (name, name, sizeof (name));
1047 // Check the binary name; default to GAME_NORMAL (0)
1048 gamemode = GAME_NORMAL;
1049 for (i = 1; i < sizeof (gamemode_info) / sizeof (gamemode_info[0]); i++)
1050 if (strstr (name, gamemode_info[i].prog_name))
1052 gamemode = (gamemode_t)i;
1056 // Look for a command-line option
1057 for (i = 0; i < sizeof (gamemode_info) / sizeof (gamemode_info[0]); i++)
1058 if (COM_CheckParm (gamemode_info[i].cmdline))
1060 gamemode = (gamemode_t)i;
1064 gamename = gamemode_info[gamemode].gamename;
1065 gamedirname1 = gamemode_info[gamemode].gamedirname1;
1066 gamedirname2 = gamemode_info[gamemode].gamedirname2;
1067 gamescreenshotname = gamemode_info[gamemode].gamescreenshotname;
1068 gameuserdirname = gamemode_info[gamemode].gameuserdirname;
1077 void COM_Init_Commands (void)
1080 char com_cmdline[MAX_INPUTLINE];
1082 Cvar_RegisterVariable (®istered);
1083 Cvar_RegisterVariable (&cmdline);
1085 // reconstitute the command line for the cmdline externally visible cvar
1087 for (j = 0;(j < MAX_NUM_ARGVS) && (j < com_argc);j++)
1090 if (strstr(com_argv[j], " "))
1092 // arg contains whitespace, store quotes around it
1093 com_cmdline[n++] = '\"';
1094 while ((n < ((int)sizeof(com_cmdline) - 1)) && com_argv[j][i])
1095 com_cmdline[n++] = com_argv[j][i++];
1096 com_cmdline[n++] = '\"';
1100 while ((n < ((int)sizeof(com_cmdline) - 1)) && com_argv[j][i])
1101 com_cmdline[n++] = com_argv[j][i++];
1103 if (n < ((int)sizeof(com_cmdline) - 1))
1104 com_cmdline[n++] = ' ';
1109 Cvar_Set ("cmdline", com_cmdline);
1116 does a varargs printf into a temp buffer, so I don't need to have
1117 varargs versions of all text functions.
1118 FIXME: make this buffer size safe someday
1121 char *va(const char *format, ...)
1124 // LordHavoc: now cycles through 8 buffers to avoid problems in most cases
1125 static char string[8][1024], *s;
1126 static int stringindex = 0;
1128 s = string[stringindex];
1129 stringindex = (stringindex + 1) & 7;
1130 va_start (argptr, format);
1131 dpvsnprintf (s, sizeof (string[0]), format,argptr);
1138 //======================================
1140 // snprintf and vsnprintf are NOT portable. Use their DP counterparts instead
1146 # define snprintf _snprintf
1147 # define vsnprintf _vsnprintf
1151 int dpsnprintf (char *buffer, size_t buffersize, const char *format, ...)
1156 va_start (args, format);
1157 result = dpvsnprintf (buffer, buffersize, format, args);
1164 int dpvsnprintf (char *buffer, size_t buffersize, const char *format, va_list args)
1168 result = vsnprintf (buffer, buffersize, format, args);
1169 if (result < 0 || (size_t)result >= buffersize)
1171 buffer[buffersize - 1] = '\0';
1179 //======================================
1181 void COM_ToLowerString (const char *in, char *out, size_t size_out)
1186 while (*in && size_out > 1)
1188 if (*in >= 'A' && *in <= 'Z')
1189 *out++ = *in++ + 'a' - 'A';
1197 void COM_ToUpperString (const char *in, char *out, size_t size_out)
1202 while (*in && size_out > 1)
1204 if (*in >= 'a' && *in <= 'z')
1205 *out++ = *in++ + 'A' - 'a';
1213 int COM_StringBeginsWith(const char *s, const char *match)
1215 for (;*s && *match;s++, match++)
1221 int COM_ReadAndTokenizeLine(const char **text, char **argv, int maxargc, char *tokenbuf, int tokenbufsize, const char *commentprefix)
1223 int argc, commentprefixlength;
1227 tokenbufend = tokenbuf + tokenbufsize;
1229 commentprefixlength = 0;
1231 commentprefixlength = (int)strlen(commentprefix);
1232 while (*l && *l != '\n' && *l != '\r')
1236 if (commentprefixlength && !strncmp(l, commentprefix, commentprefixlength))
1238 while (*l && *l != '\n' && *l != '\r')
1242 if (argc >= maxargc)
1244 argv[argc++] = tokenbuf;
1248 while (*l && *l != '"')
1250 if (tokenbuf >= tokenbufend)
1261 if (tokenbuf >= tokenbufend)
1266 if (tokenbuf >= tokenbufend)
1287 COM_StringLengthNoColors
1289 calculates the visible width of a color coded string.
1291 *valid is filled with TRUE if the string is a valid colored string (that is, if
1292 it does not end with an unfinished color code). If it gets filled with FALSE, a
1293 fix would be adding a STRING_COLOR_TAG at the end of the string.
1295 valid can be set to NULL if the caller doesn't care.
1297 For size_s, specify the maximum number of characters from s to use, or 0 to use
1298 all characters until the zero terminator.
1302 COM_StringLengthNoColors(const char *s, size_t size_s, qboolean *valid)
1304 const char *end = size_s ? (s + size_s) : NULL;
1308 switch((s == end) ? 0 : *s)
1314 case STRING_COLOR_TAG:
1316 switch((s == end) ? 0 : *s)
1318 case 0: // ends with unfinished color code!
1323 case STRING_COLOR_TAG: // escaped ^
1326 case '0': case '1': case '2': case '3': case '4':
1327 case '5': case '6': case '7': case '8': case '9': // color code
1329 default: // not a color code
1330 ++len; // STRING_COLOR_TAG
1331 ++len; // the character
1346 COM_StringDecolorize
1348 removes color codes from a string.
1350 If escape_carets is true, the resulting string will be safe for printing. If
1351 escape_carets is false, the function will just strip color codes (for logging
1354 If the output buffer size did not suffice for converting, the function returns
1355 FALSE. Generally, if escape_carets is false, the output buffer needs
1356 strlen(str)+1 bytes, and if escape_carets is true, it can need strlen(str)+2
1357 bytes. In any case, the function makes sure that the resulting string is
1360 For size_in, specify the maximum number of characters from in to use, or 0 to use
1361 all characters until the zero terminator.
1365 COM_StringDecolorize(const char *in, size_t size_in, char *out, size_t size_out, qboolean escape_carets)
1367 #define APPEND(ch) do { if(--size_out) { *out++ = (ch); } else { *out++ = 0; return FALSE; } } while(0)
1368 const char *end = size_in ? (in + size_in) : NULL;
1373 switch((in == end) ? 0 : *in)
1378 case STRING_COLOR_TAG:
1380 switch((in == end) ? 0 : *in)
1382 case 0: // ends with unfinished color code!
1383 APPEND(STRING_COLOR_TAG);
1384 // finish the code by appending another caret when escaping
1386 APPEND(STRING_COLOR_TAG);
1389 case STRING_COLOR_TAG: // escaped ^
1390 APPEND(STRING_COLOR_TAG);
1391 // append a ^ twice when escaping
1393 APPEND(STRING_COLOR_TAG);
1395 case '0': case '1': case '2': case '3': case '4':
1396 case '5': case '6': case '7': case '8': case '9': // color code
1398 default: // not a color code
1399 APPEND(STRING_COLOR_TAG);
1414 // written by Elric, thanks Elric!
1415 char *SearchInfostring(const char *infostring, const char *key)
1417 static char value [MAX_INPUTLINE];
1418 char crt_key [MAX_INPUTLINE];
1419 size_t value_ind, key_ind;
1422 if (*infostring++ != '\\')
1437 if (c == '\\' || key_ind == sizeof (crt_key) - 1)
1439 crt_key[key_ind] = '\0';
1443 crt_key[key_ind++] = c;
1446 // If it's the key we are looking for, save it in "value"
1447 if (!strcmp(crt_key, key))
1453 if (c == '\0' || c == '\\' || value_ind == sizeof (value) - 1)
1455 value[value_ind] = '\0';
1459 value[value_ind++] = c;
1463 // Else, skip the value
1476 void InfoString_GetValue(const char *buffer, const char *key, char *value, size_t valuelength)
1484 keylength = strlen(key);
1485 if (valuelength < 1 || !value)
1487 Con_Printf("InfoString_GetValue: no room in value\n");
1491 if (strchr(key, '\\'))
1493 Con_Printf("InfoString_GetValue: key name \"%s\" contains \\ which is not possible in an infostring\n", key);
1496 if (strchr(key, '\"'))
1498 Con_Printf("InfoString_SetValue: key name \"%s\" contains \" which is not allowed in an infostring\n", key);
1503 Con_Printf("InfoString_GetValue: can not look up a key with no name\n");
1506 while (buffer[pos] == '\\')
1508 if (!memcmp(buffer + pos+1, key, keylength))
1510 for (pos++;buffer[pos] && buffer[pos] != '\\';pos++);
1512 for (j = 0;buffer[pos+j] && buffer[pos+j] != '\\' && j < (int)valuelength - 1;j++)
1513 value[j] = buffer[pos+j];
1517 for (pos++;buffer[pos] && buffer[pos] != '\\';pos++);
1518 for (pos++;buffer[pos] && buffer[pos] != '\\';pos++);
1520 // if we reach this point the key was not found
1523 void InfoString_SetValue(char *buffer, size_t bufferlength, const char *key, const char *value)
1531 keylength = strlen(key);
1532 if (strchr(key, '\\') || strchr(value, '\\'))
1534 Con_Printf("InfoString_SetValue: \"%s\" \"%s\" contains \\ which is not possible to store in an infostring\n", key, value);
1537 if (strchr(key, '\"') || strchr(value, '\"'))
1539 Con_Printf("InfoString_SetValue: \"%s\" \"%s\" contains \" which is not allowed in an infostring\n", key, value);
1544 Con_Printf("InfoString_SetValue: can not set a key with no name\n");
1547 while (buffer[pos] == '\\')
1549 if (!memcmp(buffer + pos+1, key, keylength))
1551 for (pos++;buffer[pos] && buffer[pos] != '\\';pos++);
1552 for (pos++;buffer[pos] && buffer[pos] != '\\';pos++);
1554 // if we found the key, find the end of it because we will be replacing it
1556 if (buffer[pos] == '\\')
1558 for (pos2++;buffer[pos2] && buffer[pos2] != '\\';pos2++);
1559 for (pos2++;buffer[pos2] && buffer[pos2] != '\\';pos2++);
1561 if (bufferlength <= pos + 1 + strlen(key) + 1 + strlen(value) + strlen(buffer + pos2))
1563 Con_Printf("InfoString_SetValue: no room for \"%s\" \"%s\" in infostring\n", key, value);
1566 if (value && value[0])
1568 // set the key/value and append the remaining text
1569 char tempbuffer[4096];
1570 strlcpy(tempbuffer, buffer + pos2, sizeof(tempbuffer));
1571 sprintf(buffer + pos, "\\%s\\%s%s", key, value, tempbuffer);
1575 // just remove the key from the text
1576 strlcpy(buffer + pos, buffer + pos2, bufferlength - pos);
1580 void InfoString_Print(char *buffer)
1587 if (*buffer != '\\')
1589 Con_Printf("InfoString_Print: corrupt string\n");
1592 for (buffer++, i = 0;*buffer && *buffer != '\\';buffer++)
1593 if (i < (int)sizeof(key)-1)
1596 if (*buffer != '\\')
1598 Con_Printf("InfoString_Print: corrupt string\n");
1601 for (buffer++, i = 0;*buffer && *buffer != '\\';buffer++)
1602 if (i < (int)sizeof(value)-1)
1603 value[i++] = *buffer;
1605 // empty value is an error case
1606 Con_Printf("%20s %s\n", key, value[0] ? value : "NO VALUE");
1610 //========================================================
1611 // strlcat and strlcpy, from OpenBSD
1614 * Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com>
1616 * Permission to use, copy, modify, and distribute this software for any
1617 * purpose with or without fee is hereby granted, provided that the above
1618 * copyright notice and this permission notice appear in all copies.
1620 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
1621 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
1622 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
1623 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
1624 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
1625 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
1626 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
1629 /* $OpenBSD: strlcat.c,v 1.11 2003/06/17 21:56:24 millert Exp $ */
1630 /* $OpenBSD: strlcpy.c,v 1.8 2003/06/17 21:56:24 millert Exp $ */
1633 #ifndef HAVE_STRLCAT
1635 strlcat(char *dst, const char *src, size_t siz)
1637 register char *d = dst;
1638 register const char *s = src;
1639 register size_t n = siz;
1642 /* Find the end of dst and adjust bytes left but don't go past end */
1643 while (n-- != 0 && *d != '\0')
1649 return(dlen + strlen(s));
1650 while (*s != '\0') {
1659 return(dlen + (s - src)); /* count does not include NUL */
1661 #endif // #ifndef HAVE_STRLCAT
1664 #ifndef HAVE_STRLCPY
1666 strlcpy(char *dst, const char *src, size_t siz)
1668 register char *d = dst;
1669 register const char *s = src;
1670 register size_t n = siz;
1672 /* Copy as many bytes as will fit */
1673 if (n != 0 && --n != 0) {
1675 if ((*d++ = *s++) == 0)
1680 /* Not enough room in dst, add NUL and traverse rest of src */
1683 *d = '\0'; /* NUL-terminate dst */
1688 return(s - src - 1); /* count does not include NUL */
1691 #endif // #ifndef HAVE_STRLCPY