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] == 'n')
749 com_token[len++] = c;
752 *datapointer = data+1;
755 else if (*data == '\'')
758 for (data++;*data != '\'';data++)
760 if (*data == '\\' && data[1] == '\'' )
762 if (!*data || len >= (int)sizeof(com_token) - 1)
768 com_token[len++] = *data;
771 *datapointer = data+1;
774 else if (*data == '\r')
776 // translate Mac line ending to UNIX
777 com_token[len++] = '\n';
782 else if (*data == '\n' || *data == '{' || *data == '}' || *data == ')' || *data == '(' || *data == ']' || *data == '[' || *data == '\'' || *data == ':' || *data == ',' || *data == ';')
785 com_token[len++] = *data++;
793 for (;*data > ' ' && *data != '{' && *data != '}' && *data != ')' && *data != '(' && *data != ']' && *data != '[' && *data != '\'' && *data != ':' && *data != ',' && *data != ';' && *data != '\'' && *data != '"';data++)
795 if (len >= (int)sizeof(com_token) - 1)
801 com_token[len++] = *data;
811 COM_ParseTokenConsole
813 Parse a token out of a string, behaving like the qwcl console
816 int COM_ParseTokenConsole(const char **datapointer)
820 const char *data = *datapointer;
833 for (;*data <= ' ';data++)
843 if (*data == '/' && data[1] == '/')
846 while (*data && *data != '\n' && *data != '\r')
850 else if (*data == '\"')
853 for (data++;*data != '\"';data++)
855 if (!*data || len >= (int)sizeof(com_token) - 1)
869 else if (data[1] == 'n')
875 com_token[len++] = c;
878 *datapointer = data+1;
883 for (;*data > ' ';data++)
885 if (len >= (int)sizeof(com_token) - 1)
891 com_token[len++] = *data;
905 Returns the position (1 to argc-1) in the program's argument list
906 where the given parameter apears, or 0 if not present
909 int COM_CheckParm (const char *parm)
913 for (i=1 ; i<com_argc ; i++)
916 continue; // NEXTSTEP sometimes clears appkit vars.
917 if (!strcmp (parm,com_argv[i]))
924 //===========================================================================
928 typedef struct gamemode_info_s
930 const char* prog_name;
932 const char* gamename;
933 const char* gamedirname1;
934 const char* gamedirname2;
935 const char* gamescreenshotname;
936 const char* gameuserdirname;
939 static const gamemode_info_t gamemode_info [] =
940 {// prog_name cmdline gamename gamedirname gamescreenshotname
943 // COMMANDLINEOPTION: Game: -quake runs the game Quake (default)
944 { "", "-quake", "DarkPlaces-Quake", "id1", NULL, "dp", "darkplaces" },
946 // COMMANDLINEOPTION: Game: -hipnotic runs Quake mission pack 1: The Scourge of Armagon
947 { "hipnotic", "-hipnotic", "Darkplaces-Hipnotic", "id1", "hipnotic", "dp", "darkplaces" },
949 // COMMANDLINEOPTION: Game: -rogue runs Quake mission pack 2: The Dissolution of Eternity
950 { "rogue", "-rogue", "Darkplaces-Rogue", "id1", "rogue", "dp", "darkplaces" },
952 // COMMANDLINEOPTION: Game: -nehahra runs The Seal of Nehahra movie and game
953 { "nehahra", "-nehahra", "DarkPlaces-Nehahra", "id1", "nehahra", "dp", "darkplaces" },
955 // COMMANDLINEOPTION: Game: -nexuiz runs the multiplayer game Nexuiz
956 { "nexuiz", "-nexuiz", "Nexuiz", "data", NULL, "nexuiz", "nexuiz" },
958 // COMMANDLINEOPTION: Game: -transfusion runs Transfusion (the recreation of Blood in Quake)
959 { "transfusion", "-transfusion", "Transfusion", "basetf", NULL, "transfusion", "transfusion" },
961 // COMMANDLINEOPTION: Game: -goodvsbad2 runs the psychadelic RTS FPS game Good Vs Bad 2
962 { "gvb2", "-goodvsbad2", "GoodVs.Bad2", "rts", NULL, "gvb2", "gvb2" },
964 // COMMANDLINEOPTION: Game: -teu runs The Evil Unleashed (this option is obsolete as they are not using darkplaces)
965 { "teu", "-teu", "TheEvilUnleashed", "baseteu", NULL, "teu", "teu" },
967 // COMMANDLINEOPTION: Game: -battlemech runs the multiplayer topdown deathmatch game BattleMech
968 { "battlemech", "-battlemech", "Battlemech", "base", NULL, "battlemech", "battlemech" },
970 // COMMANDLINEOPTION: Game: -zymotic runs the singleplayer game Zymotic
971 { "zymotic", "-zymotic", "Zymotic", "basezym", NULL, "zymotic", "zymotic" },
973 // COMMANDLINEOPTION: Game: -setheral runs the multiplayer game Setheral
974 { "setheral", "-setheral", "Setheral", "data", NULL, "setheral", "setheral" },
976 // COMMANDLINEOPTION: Game: -som runs the multiplayer game Son Of Man
977 { "som", "-som", "Son of Man", "id1", "sonofman", "som", "darkplaces" },
979 // COMMANDLINEOPTION: Game: -tenebrae runs the graphics test mod known as Tenebrae (some features not implemented)
980 { "tenebrae", "-tenebrae", "DarkPlaces-Tenebrae", "id1", "tenebrae", "dp", "darkplaces" },
982 // COMMANDLINEOPTION: Game: -neoteric runs the game Neoteric
983 { "neoteric", "-neoteric", "Neoteric", "id1", "neobase", "neo", "darkplaces" },
985 // COMMANDLINEOPTION: Game: -openquartz runs the game OpenQuartz, a standalone GPL replacement of the quake content
986 { "openquartz", "-openquartz", "OpenQuartz", "id1", NULL, "openquartz", "darkplaces" },
988 // COMMANDLINEOPTION: Game: -prydon runs the topdown point and click action-RPG Prydon Gate
989 { "prydon", "-prydon", "PrydonGate", "id1", "prydon", "prydon", "darkplaces" },
991 // COMMANDLINEOPTION: Game: -netherworld runs the game Netherworld: Dark Master
992 { "netherworld", "-netherworld", "Netherworld: Dark Master", "id1", "netherworld", "nw", "darkplaces" },
994 // COMMANDLINEOPTION: Game: -thehunted runs the game The Hunted
995 { "thehunted", "-thehunted", "The Hunted", "thdata", NULL, "th", "thehunted" },
996 // GAME_DEFEATINDETAIL2
997 // COMMANDLINEOPTION: Game: -did2 runs the game Defeat In Detail 2
998 { "did2", "-did2", "Defeat In Detail 2", "data", NULL, "did2_", "did2" },
1000 // COMMANDLINEOPTION: Game: -darsana runs the game Darsana
1001 { "darsana", "-darsana", "Darsana", "ddata", NULL, "darsana", "darsana" },
1002 // GAME_CONTAGIONTHEORY
1003 // COMMANDLINEOPTION: Game: -contagiontheory runs the game Contagion Theory
1004 { "contagiontheory", "-contagiontheory", "Contagion Theory", "ctdata", NULL, "ct", "contagiontheory" },
1007 void COM_InitGameType (void)
1009 char name [MAX_OSPATH];
1012 FS_StripExtension (com_argv[0], name, sizeof (name));
1013 COM_ToLowerString (name, name, sizeof (name));
1015 // Check the binary name; default to GAME_NORMAL (0)
1016 gamemode = GAME_NORMAL;
1017 for (i = 1; i < sizeof (gamemode_info) / sizeof (gamemode_info[0]); i++)
1018 if (strstr (name, gamemode_info[i].prog_name))
1020 gamemode = (gamemode_t)i;
1024 // Look for a command-line option
1025 for (i = 0; i < sizeof (gamemode_info) / sizeof (gamemode_info[0]); i++)
1026 if (COM_CheckParm (gamemode_info[i].cmdline))
1028 gamemode = (gamemode_t)i;
1032 gamename = gamemode_info[gamemode].gamename;
1033 gamedirname1 = gamemode_info[gamemode].gamedirname1;
1034 gamedirname2 = gamemode_info[gamemode].gamedirname2;
1035 gamescreenshotname = gamemode_info[gamemode].gamescreenshotname;
1036 gameuserdirname = gamemode_info[gamemode].gameuserdirname;
1045 void COM_Init_Commands (void)
1048 char com_cmdline[MAX_INPUTLINE];
1050 Cvar_RegisterVariable (®istered);
1051 Cvar_RegisterVariable (&cmdline);
1053 // reconstitute the command line for the cmdline externally visible cvar
1055 for (j = 0;(j < MAX_NUM_ARGVS) && (j < com_argc);j++)
1058 if (strstr(com_argv[j], " "))
1060 // arg contains whitespace, store quotes around it
1061 com_cmdline[n++] = '\"';
1062 while ((n < ((int)sizeof(com_cmdline) - 1)) && com_argv[j][i])
1063 com_cmdline[n++] = com_argv[j][i++];
1064 com_cmdline[n++] = '\"';
1068 while ((n < ((int)sizeof(com_cmdline) - 1)) && com_argv[j][i])
1069 com_cmdline[n++] = com_argv[j][i++];
1071 if (n < ((int)sizeof(com_cmdline) - 1))
1072 com_cmdline[n++] = ' ';
1077 Cvar_Set ("cmdline", com_cmdline);
1084 does a varargs printf into a temp buffer, so I don't need to have
1085 varargs versions of all text functions.
1086 FIXME: make this buffer size safe someday
1089 char *va(const char *format, ...)
1092 // LordHavoc: now cycles through 8 buffers to avoid problems in most cases
1093 static char string[8][1024], *s;
1094 static int stringindex = 0;
1096 s = string[stringindex];
1097 stringindex = (stringindex + 1) & 7;
1098 va_start (argptr, format);
1099 dpvsnprintf (s, sizeof (string[0]), format,argptr);
1106 //======================================
1108 // snprintf and vsnprintf are NOT portable. Use their DP counterparts instead
1114 # define snprintf _snprintf
1115 # define vsnprintf _vsnprintf
1119 int dpsnprintf (char *buffer, size_t buffersize, const char *format, ...)
1124 va_start (args, format);
1125 result = dpvsnprintf (buffer, buffersize, format, args);
1132 int dpvsnprintf (char *buffer, size_t buffersize, const char *format, va_list args)
1136 result = vsnprintf (buffer, buffersize, format, args);
1137 if (result < 0 || (size_t)result >= buffersize)
1139 buffer[buffersize - 1] = '\0';
1147 //======================================
1149 void COM_ToLowerString (const char *in, char *out, size_t size_out)
1154 while (*in && size_out > 1)
1156 if (*in >= 'A' && *in <= 'Z')
1157 *out++ = *in++ + 'a' - 'A';
1165 void COM_ToUpperString (const char *in, char *out, size_t size_out)
1170 while (*in && size_out > 1)
1172 if (*in >= 'a' && *in <= 'z')
1173 *out++ = *in++ + 'A' - 'a';
1181 int COM_StringBeginsWith(const char *s, const char *match)
1183 for (;*s && *match;s++, match++)
1189 int COM_ReadAndTokenizeLine(const char **text, char **argv, int maxargc, char *tokenbuf, int tokenbufsize, const char *commentprefix)
1191 int argc, commentprefixlength;
1195 tokenbufend = tokenbuf + tokenbufsize;
1197 commentprefixlength = 0;
1199 commentprefixlength = (int)strlen(commentprefix);
1200 while (*l && *l != '\n' && *l != '\r')
1204 if (commentprefixlength && !strncmp(l, commentprefix, commentprefixlength))
1206 while (*l && *l != '\n' && *l != '\r')
1210 if (argc >= maxargc)
1212 argv[argc++] = tokenbuf;
1216 while (*l && *l != '"')
1218 if (tokenbuf >= tokenbufend)
1229 if (tokenbuf >= tokenbufend)
1234 if (tokenbuf >= tokenbufend)
1253 // written by Elric, thanks Elric!
1254 char *SearchInfostring(const char *infostring, const char *key)
1256 static char value [MAX_INPUTLINE];
1257 char crt_key [MAX_INPUTLINE];
1258 size_t value_ind, key_ind;
1261 if (*infostring++ != '\\')
1276 if (c == '\\' || key_ind == sizeof (crt_key) - 1)
1278 crt_key[key_ind] = '\0';
1282 crt_key[key_ind++] = c;
1285 // If it's the key we are looking for, save it in "value"
1286 if (!strcmp(crt_key, key))
1292 if (c == '\0' || c == '\\' || value_ind == sizeof (value) - 1)
1294 value[value_ind] = '\0';
1298 value[value_ind++] = c;
1302 // Else, skip the value
1315 void InfoString_GetValue(const char *buffer, const char *key, char *value, size_t valuelength)
1323 keylength = strlen(key);
1324 if (valuelength < 1 || !value)
1326 Con_Printf("InfoString_GetValue: no room in value\n");
1330 if (strchr(key, '\\'))
1332 Con_Printf("InfoString_GetValue: key name \"%s\" contains \\ which is not possible in an infostring\n", key);
1335 if (strchr(key, '\"'))
1337 Con_Printf("InfoString_SetValue: key name \"%s\" contains \" which is not allowed in an infostring\n", key);
1342 Con_Printf("InfoString_GetValue: can not look up a key with no name\n");
1345 while (buffer[pos] == '\\')
1347 if (!memcmp(buffer + pos+1, key, keylength))
1349 for (pos++;buffer[pos] && buffer[pos] != '\\';pos++);
1351 for (j = 0;buffer[pos+j] && buffer[pos+j] != '\\' && j < (int)valuelength - 1;j++)
1352 value[j] = buffer[pos+j];
1356 for (pos++;buffer[pos] && buffer[pos] != '\\';pos++);
1357 for (pos++;buffer[pos] && buffer[pos] != '\\';pos++);
1359 // if we reach this point the key was not found
1362 void InfoString_SetValue(char *buffer, size_t bufferlength, const char *key, const char *value)
1370 keylength = strlen(key);
1371 if (strchr(key, '\\') || strchr(value, '\\'))
1373 Con_Printf("InfoString_SetValue: \"%s\" \"%s\" contains \\ which is not possible to store in an infostring\n", key, value);
1376 if (strchr(key, '\"') || strchr(value, '\"'))
1378 Con_Printf("InfoString_SetValue: \"%s\" \"%s\" contains \" which is not allowed in an infostring\n", key, value);
1383 Con_Printf("InfoString_SetValue: can not set a key with no name\n");
1386 while (buffer[pos] == '\\')
1388 if (!memcmp(buffer + pos+1, key, keylength))
1390 for (pos++;buffer[pos] && buffer[pos] != '\\';pos++);
1391 for (pos++;buffer[pos] && buffer[pos] != '\\';pos++);
1393 // if we found the key, find the end of it because we will be replacing it
1395 if (buffer[pos] == '\\')
1397 for (pos2++;buffer[pos2] && buffer[pos2] != '\\';pos2++);
1398 for (pos2++;buffer[pos2] && buffer[pos2] != '\\';pos2++);
1400 if (bufferlength <= pos + 1 + strlen(key) + 1 + strlen(value) + strlen(buffer + pos2))
1402 Con_Printf("InfoString_SetValue: no room for \"%s\" \"%s\" in infostring\n", key, value);
1405 if (value && value[0])
1407 // set the key/value and append the remaining text
1408 char tempbuffer[4096];
1409 strlcpy(tempbuffer, buffer + pos2, sizeof(tempbuffer));
1410 sprintf(buffer + pos, "\\%s\\%s%s", key, value, tempbuffer);
1414 // just remove the key from the text
1415 strlcpy(buffer + pos, buffer + pos2, bufferlength - pos);
1419 void InfoString_Print(char *buffer)
1426 if (*buffer != '\\')
1428 Con_Printf("InfoString_Print: corrupt string\n");
1431 for (buffer++, i = 0;*buffer && *buffer != '\\';buffer++)
1432 if (i < (int)sizeof(key)-1)
1435 if (*buffer != '\\')
1437 Con_Printf("InfoString_Print: corrupt string\n");
1440 for (buffer++, i = 0;*buffer && *buffer != '\\';buffer++)
1441 if (i < (int)sizeof(value)-1)
1442 value[i++] = *buffer;
1444 // empty value is an error case
1445 Con_Printf("%20s %s\n", key, value[0] ? value : "NO VALUE");
1449 //========================================================
1450 // strlcat and strlcpy, from OpenBSD
1453 * Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com>
1455 * Permission to use, copy, modify, and distribute this software for any
1456 * purpose with or without fee is hereby granted, provided that the above
1457 * copyright notice and this permission notice appear in all copies.
1459 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
1460 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
1461 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
1462 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
1463 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
1464 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
1465 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
1468 /* $OpenBSD: strlcat.c,v 1.11 2003/06/17 21:56:24 millert Exp $ */
1469 /* $OpenBSD: strlcpy.c,v 1.8 2003/06/17 21:56:24 millert Exp $ */
1472 #ifndef HAVE_STRLCAT
1474 strlcat(char *dst, const char *src, size_t siz)
1476 register char *d = dst;
1477 register const char *s = src;
1478 register size_t n = siz;
1481 /* Find the end of dst and adjust bytes left but don't go past end */
1482 while (n-- != 0 && *d != '\0')
1488 return(dlen + strlen(s));
1489 while (*s != '\0') {
1498 return(dlen + (s - src)); /* count does not include NUL */
1500 #endif // #ifndef HAVE_STRLCAT
1503 #ifndef HAVE_STRLCPY
1505 strlcpy(char *dst, const char *src, size_t siz)
1507 register char *d = dst;
1508 register const char *s = src;
1509 register size_t n = siz;
1511 /* Copy as many bytes as will fit */
1512 if (n != 0 && --n != 0) {
1514 if ((*d++ = *s++) == 0)
1519 /* Not enough room in dst, add NUL and traverse rest of src */
1522 *d = '\0'; /* NUL-terminate dst */
1527 return(s - src - 1); /* count does not include NUL */
1530 #endif // #ifndef HAVE_STRLCPY