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.
25 /// MSVC has a different name for several standard functions
27 # define strcasecmp _stricmp
28 # define strncasecmp _strnicmp
31 // Create our own define for Mac OS X
32 #if defined(__APPLE__) && defined(__MACH__)
37 #include <sys/file.h> ///< Needed for FNDELAY
40 //============================================================================
42 typedef struct sizebuf_s
44 qboolean allowoverflow; ///< if false, do a Sys_Error
45 qboolean overflowed; ///< set to true if the buffer size failed
50 qboolean badread; // set if a read goes beyond end of message
53 void SZ_Clear (sizebuf_t *buf);
54 unsigned char *SZ_GetSpace (sizebuf_t *buf, int length);
55 void SZ_Write (sizebuf_t *buf, const unsigned char *data, int length);
56 void SZ_HexDumpToConsole(const sizebuf_t *buf);
58 void Com_HexDumpToConsole(const unsigned char *data, int size);
60 unsigned short CRC_Block(const unsigned char *data, size_t size);
61 unsigned short CRC_Block_CaseInsensitive(const unsigned char *data, size_t size); // for hash lookup functions that use strcasecmp for comparison
63 unsigned char COM_BlockSequenceCRCByteQW(unsigned char *base, int length, int sequence);
65 // these are actually md4sum (mdfour.c)
66 unsigned Com_BlockChecksum (void *buffer, int length);
67 void Com_BlockFullChecksum (void *buffer, int len, unsigned char *outbuf);
69 void COM_Init_Commands(void);
72 //============================================================================
74 //============================================================================
76 // check mem_bigendian if you need to know the system byte order
78 /*! \name Byte order functions.
82 // unaligned memory access crashes on some platform, so always read bytes...
83 #define BigShort(l) BuffBigShort((unsigned char *)&(l))
84 #define LittleShort(l) BuffLittleShort((unsigned char *)&(l))
85 #define BigLong(l) BuffBigLong((unsigned char *)&(l))
86 #define LittleLong(l) BuffLittleLong((unsigned char *)&(l))
87 #define BigFloat(l) BuffBigFloat((unsigned char *)&(l))
88 #define LittleFloat(l) BuffLittleFloat((unsigned char *)&(l))
90 /// Extract a big endian 32bit float from the given \p buffer.
91 float BuffBigFloat (const unsigned char *buffer);
93 /// Extract a big endian 32bit int from the given \p buffer.
94 int BuffBigLong (const unsigned char *buffer);
96 /// Extract a big endian 16bit short from the given \p buffer.
97 short BuffBigShort (const unsigned char *buffer);
99 /// Extract a little endian 32bit float from the given \p buffer.
100 float BuffLittleFloat (const unsigned char *buffer);
102 /// Extract a little endian 32bit int from the given \p buffer.
103 int BuffLittleLong (const unsigned char *buffer);
105 /// Extract a little endian 16bit short from the given \p buffer.
106 short BuffLittleShort (const unsigned char *buffer);
108 /// Encode a big endian 32bit int to the given \p buffer
109 void StoreBigLong (unsigned char *buffer, unsigned int i);
111 /// Encode a big endian 16bit int to the given \p buffer
112 void StoreBigShort (unsigned char *buffer, unsigned short i);
114 /// Encode a little endian 32bit int to the given \p buffer
115 void StoreLittleLong (unsigned char *buffer, unsigned int i);
117 /// Encode a little endian 16bit int to the given \p buffer
118 void StoreLittleShort (unsigned char *buffer, unsigned short i);
121 //============================================================================
123 // these versions are purely for internal use, never sent in network protocol
124 // (use Protocol_EnumForNumber and Protocol_NumberToEnum to convert)
125 typedef enum protocolversion_e
128 PROTOCOL_DARKPLACES7, ///< added QuakeWorld-style movement protocol to allow more consistent prediction
129 PROTOCOL_DARKPLACES6, ///< various changes
130 PROTOCOL_DARKPLACES5, ///< uses EntityFrame5 entity snapshot encoder/decoder which is based on a Tribes networking article at http://www.garagegames.com/articles/networking1/
131 PROTOCOL_DARKPLACES4, ///< various changes
132 PROTOCOL_DARKPLACES3, ///< uses EntityFrame4 entity snapshot encoder/decoder which is broken, this attempted to do partial snapshot updates on a QuakeWorld-like protocol, but it is broken and impossible to fix
133 PROTOCOL_DARKPLACES2, ///< various changes
134 PROTOCOL_DARKPLACES1, ///< uses EntityFrame entity snapshot encoder/decoder which is a QuakeWorld-like entity snapshot delta compression method
135 PROTOCOL_QUAKEDP, ///< darkplaces extended quake protocol (used by TomazQuake and others), backwards compatible as long as no extended features are used
136 PROTOCOL_NEHAHRAMOVIE, ///< Nehahra movie protocol, a big nasty hack dating back to early days of the Quake Standards Group (but only ever used by neh_gl.exe), this is potentially backwards compatible with quake protocol as long as no extended features are used (but in actuality the neh_gl.exe which wrote this protocol ALWAYS wrote the extended information)
137 PROTOCOL_QUAKE, ///< quake (aka netquake/normalquake/nq) protocol
138 PROTOCOL_QUAKEWORLD, ///< quakeworld protocol
139 PROTOCOL_NEHAHRABJP, ///< same as QUAKEDP but with 16bit modelindex
140 PROTOCOL_NEHAHRABJP2, ///< same as NEHAHRABJP but with 16bit soundindex
141 PROTOCOL_NEHAHRABJP3 ///< same as NEHAHRABJP2 but with some changes
145 /*! \name Message IO functions.
146 * Handles byte ordering and avoids alignment errors
150 void MSG_InitReadBuffer (sizebuf_t *buf, unsigned char *data, int size);
151 void MSG_WriteChar (sizebuf_t *sb, int c);
152 void MSG_WriteByte (sizebuf_t *sb, int c);
153 void MSG_WriteShort (sizebuf_t *sb, int c);
154 void MSG_WriteLong (sizebuf_t *sb, int c);
155 void MSG_WriteFloat (sizebuf_t *sb, vec_t f);
156 void MSG_WriteString (sizebuf_t *sb, const char *s);
157 void MSG_WriteUnterminatedString (sizebuf_t *sb, const char *s);
158 void MSG_WriteAngle8i (sizebuf_t *sb, vec_t f);
159 void MSG_WriteAngle16i (sizebuf_t *sb, vec_t f);
160 void MSG_WriteAngle32f (sizebuf_t *sb, vec_t f);
161 void MSG_WriteCoord13i (sizebuf_t *sb, vec_t f);
162 void MSG_WriteCoord16i (sizebuf_t *sb, vec_t f);
163 void MSG_WriteCoord32f (sizebuf_t *sb, vec_t f);
164 void MSG_WriteCoord (sizebuf_t *sb, vec_t f, protocolversion_t protocol);
165 void MSG_WriteVector (sizebuf_t *sb, const vec3_t v, protocolversion_t protocol);
166 void MSG_WriteAngle (sizebuf_t *sb, vec_t f, protocolversion_t protocol);
168 void MSG_BeginReading (sizebuf_t *sb);
169 int MSG_ReadLittleShort (sizebuf_t *sb);
170 int MSG_ReadBigShort (sizebuf_t *sb);
171 int MSG_ReadLittleLong (sizebuf_t *sb);
172 int MSG_ReadBigLong (sizebuf_t *sb);
173 float MSG_ReadLittleFloat (sizebuf_t *sb);
174 float MSG_ReadBigFloat (sizebuf_t *sb);
175 char *MSG_ReadString (sizebuf_t *sb, char *string, size_t maxstring);
176 int MSG_ReadBytes (sizebuf_t *sb, int numbytes, unsigned char *out);
178 #define MSG_ReadChar(sb) ((sb)->readcount >= (sb)->cursize ? ((sb)->badread = true, -1) : (signed char)(sb)->data[(sb)->readcount++])
179 #define MSG_ReadByte(sb) ((sb)->readcount >= (sb)->cursize ? ((sb)->badread = true, -1) : (unsigned char)(sb)->data[(sb)->readcount++])
180 #define MSG_ReadShort MSG_ReadLittleShort
181 #define MSG_ReadLong MSG_ReadLittleLong
182 #define MSG_ReadFloat MSG_ReadLittleFloat
184 float MSG_ReadAngle8i (sizebuf_t *sb);
185 float MSG_ReadAngle16i (sizebuf_t *sb);
186 float MSG_ReadAngle32f (sizebuf_t *sb);
187 float MSG_ReadCoord13i (sizebuf_t *sb);
188 float MSG_ReadCoord16i (sizebuf_t *sb);
189 float MSG_ReadCoord32f (sizebuf_t *sb);
190 float MSG_ReadCoord (sizebuf_t *sb, protocolversion_t protocol);
191 void MSG_ReadVector (sizebuf_t *sb, vec3_t v, protocolversion_t protocol);
192 float MSG_ReadAngle (sizebuf_t *sb, protocolversion_t protocol);
194 //============================================================================
196 typedef float (*COM_WordWidthFunc_t) (void *passthrough, const char *w, size_t *length, float maxWidth); // length is updated to the longest fitting string into maxWidth; if maxWidth < 0, all characters are used and length is used as is
197 typedef int (*COM_LineProcessorFunc) (void *passthrough, const char *line, size_t length, float width, qboolean isContination);
198 int COM_Wordwrap(const char *string, size_t length, float continuationSize, float maxWidth, COM_WordWidthFunc_t wordWidth, void *passthroughCW, COM_LineProcessorFunc processLine, void *passthroughPL);
200 extern char com_token[MAX_INPUTLINE];
202 int COM_ParseToken_Simple(const char **datapointer, qboolean returnnewline, qboolean parsebackslash, qboolean parsecomments);
203 int COM_ParseToken_QuakeC(const char **datapointer, qboolean returnnewline);
204 int COM_ParseToken_VM_Tokenize(const char **datapointer, qboolean returnnewline);
205 int COM_ParseToken_Console(const char **datapointer);
208 extern const char **com_argv;
209 extern int com_selffd;
211 int COM_CheckParm (const char *parm);
212 void COM_Init (void);
213 void COM_Shutdown (void);
214 void COM_InitGameType (void);
216 char *va(char *buf, size_t buflen, const char *format, ...) DP_FUNC_PRINTF(3);
217 // does a varargs printf into provided buffer, returns buffer (so it can be called in-line unlike dpsnprintf)
220 // snprintf and vsnprintf are NOT portable. Use their DP counterparts instead
224 #define snprintf DO_NOT_USE_SNPRINTF__USE_DPSNPRINTF
228 #define vsnprintf DO_NOT_USE_VSNPRINTF__USE_DPVSNPRINTF
230 // dpsnprintf and dpvsnprintf
231 // return the number of printed characters, excluding the final '\0'
232 // or return -1 if the buffer isn't big enough to contain the entire string.
233 // buffer is ALWAYS null-terminated
234 extern int dpsnprintf (char *buffer, size_t buffersize, const char *format, ...) DP_FUNC_PRINTF(3);
235 extern int dpvsnprintf (char *buffer, size_t buffersize, const char *format, va_list args);
237 // A bunch of functions are forbidden for security reasons (and also to please MSVS 2005, for some of them)
238 // LordHavoc: added #undef lines here to avoid warnings in Linux
240 #define strcat DO_NOT_USE_STRCAT__USE_STRLCAT_OR_MEMCPY
242 #define strncat DO_NOT_USE_STRNCAT__USE_STRLCAT_OR_MEMCPY
244 #define strcpy DO_NOT_USE_STRCPY__USE_STRLCPY_OR_MEMCPY
246 #define strncpy DO_NOT_USE_STRNCPY__USE_STRLCPY_OR_MEMCPY
248 //#define sprintf DO_NOT_USE_SPRINTF__USE_DPSNPRINTF
251 //============================================================================
253 extern struct cvar_s registered;
254 extern struct cvar_s cmdline;
256 typedef enum userdirmode_e
258 USERDIRMODE_NOHOME, // basedir only
259 USERDIRMODE_HOME, // Windows basedir, general POSIX (~/.)
260 USERDIRMODE_MYGAMES, // pre-Vista (My Documents/My Games/), general POSIX (~/.)
261 USERDIRMODE_SAVEDGAMES, // Vista (%USERPROFILE%/Saved Games/), OSX (~/Library/Application Support/), Linux (~/.config)
266 typedef enum gamemode_e
281 GAME_TENEBRAE, // full of evil hackery
283 GAME_OPENQUARTZ, //this game sucks
287 GAME_DEFEATINDETAIL2,
289 GAME_CONTAGIONTHEORY,
293 GAME_STEELSTORM, // added by motorsep
294 GAME_STEELSTORM2, // added by motorsep
295 GAME_TOMESOFMEPHISTOPHELES, // added by motorsep
296 GAME_STRAPBOMB, // added by motorsep for Urre
302 extern gamemode_t gamemode;
303 extern const char *gamename;
304 extern const char *gamedirname1;
305 extern const char *gamedirname2;
306 extern const char *gamescreenshotname;
307 extern const char *gameuserdirname;
308 extern char com_modname[MAX_OSPATH];
310 void COM_ChangeGameTypeForGameDirs(void);
312 void COM_ToLowerString (const char *in, char *out, size_t size_out);
313 void COM_ToUpperString (const char *in, char *out, size_t size_out);
314 int COM_StringBeginsWith(const char *s, const char *match);
316 int COM_ReadAndTokenizeLine(const char **text, char **argv, int maxargc, char *tokenbuf, int tokenbufsize, const char *commentprefix);
318 size_t COM_StringLengthNoColors(const char *s, size_t size_s, qboolean *valid);
319 qboolean COM_StringDecolorize(const char *in, size_t size_in, char *out, size_t size_out, qboolean escape_carets);
320 void COM_ToLowerString (const char *in, char *out, size_t size_out);
321 void COM_ToUpperString (const char *in, char *out, size_t size_out);
323 typedef struct stringlist_s
325 /// maxstrings changes as needed, causing reallocation of strings[] array
331 int matchpattern(const char *in, const char *pattern, int caseinsensitive);
332 int matchpattern_with_separator(const char *in, const char *pattern, int caseinsensitive, const char *separators, qboolean wildcard_least_one);
333 void stringlistinit(stringlist_t *list);
334 void stringlistfreecontents(stringlist_t *list);
335 void stringlistappend(stringlist_t *list, const char *text);
336 void stringlistsort(stringlist_t *list, qboolean uniq);
337 void listdirectory(stringlist_t *list, const char *basepath, const char *path);
339 char *InfoString_GetValue(const char *buffer, const char *key, char *value, size_t valuelength);
340 void InfoString_SetValue(char *buffer, size_t bufferlength, const char *key, const char *value);
341 void InfoString_Print(char *buffer);
343 // strlcat and strlcpy, from OpenBSD
344 // Most (all?) BSDs already have them
345 #if defined(__OpenBSD__) || defined(__NetBSD__) || defined(__FreeBSD__) || defined(MACOSX)
346 # define HAVE_STRLCAT 1
347 # define HAVE_STRLCPY 1
352 * Appends src to string dst of size siz (unlike strncat, siz is the
353 * full size of dst, not space left). At most siz-1 characters
354 * will be copied. Always NUL terminates (unless siz <= strlen(dst)).
355 * Returns strlen(src) + MIN(siz, strlen(initial dst)).
356 * If retval >= siz, truncation occurred.
358 size_t strlcat(char *dst, const char *src, size_t siz);
359 #endif // #ifndef HAVE_STRLCAT
363 * Copy src to string dst of size siz. At most siz-1 characters
364 * will be copied. Always NUL terminates (unless siz == 0).
365 * Returns strlen(src); if retval >= siz, truncation occurred.
367 size_t strlcpy(char *dst, const char *src, size_t siz);
369 #endif // #ifndef HAVE_STRLCPY
371 void FindFraction(double val, int *num, int *denom, int denomMax);
373 // decodes XPM file to XPM array (as if #include'd)
374 char **XPM_DecodeString(const char *in);
376 size_t base64_encode(unsigned char *buf, size_t buflen, size_t outbuflen);