/*
Copyright (C) 1996-1997 Id Software, Inc.
+Copyright (C) 2000-2020 DarkPlaces contributors
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
#ifndef COMMON_H
#define COMMON_H
+#include <stdarg.h>
+#include <assert.h>
+#include "qtypes.h"
+#include "qdefs.h"
/// MSVC has a different name for several standard functions
#ifdef WIN32
# define strcasecmp _stricmp
# define strncasecmp _strnicmp
+#else
+#include "strings.h"
#endif
// Create our own define for Mac OS X
# define MACOSX
#endif
-#ifdef SUNOS
-#include <sys/file.h> ///< Needed for FNDELAY
-#endif
//============================================================================
+#define ContainerOf(ptr, type, member) ((type *)((char *)(ptr) - offsetof(type, member)))
+
typedef struct sizebuf_s
{
- qboolean allowoverflow; ///< if false, do a Sys_Error
- qboolean overflowed; ///< set to true if the buffer size failed
+ qbool allowoverflow; ///< if false, do a Sys_Error
+ qbool overflowed; ///< set to true if the buffer size failed
unsigned char *data;
int maxsize;
int cursize;
int readcount;
- qboolean badread; // set if a read goes beyond end of message
+ qbool badread; // set if a read goes beyond end of message
} sizebuf_t;
void SZ_Clear (sizebuf_t *buf);
typedef enum protocolversion_e
{
PROTOCOL_UNKNOWN,
+ PROTOCOL_DARKPLACES8, ///< added parting messages. WIP
PROTOCOL_DARKPLACES7, ///< added QuakeWorld-style movement protocol to allow more consistent prediction
PROTOCOL_DARKPLACES6, ///< various changes
PROTOCOL_DARKPLACES5, ///< uses EntityFrame5 entity snapshot encoder/decoder which is based on a Tribes networking article at http://www.garagegames.com/articles/networking1/
* @{
*/
+void MSG_InitReadBuffer (sizebuf_t *buf, unsigned char *data, int size);
void MSG_WriteChar (sizebuf_t *sb, int c);
void MSG_WriteByte (sizebuf_t *sb, int c);
void MSG_WriteShort (sizebuf_t *sb, int c);
void MSG_WriteLong (sizebuf_t *sb, int c);
-void MSG_WriteFloat (sizebuf_t *sb, float f);
+void MSG_WriteFloat (sizebuf_t *sb, vec_t f);
void MSG_WriteString (sizebuf_t *sb, const char *s);
void MSG_WriteUnterminatedString (sizebuf_t *sb, const char *s);
-void MSG_WriteAngle8i (sizebuf_t *sb, float f);
-void MSG_WriteAngle16i (sizebuf_t *sb, float f);
-void MSG_WriteAngle32f (sizebuf_t *sb, float f);
-void MSG_WriteCoord13i (sizebuf_t *sb, float f);
-void MSG_WriteCoord16i (sizebuf_t *sb, float f);
-void MSG_WriteCoord32f (sizebuf_t *sb, float f);
-void MSG_WriteCoord (sizebuf_t *sb, float f, protocolversion_t protocol);
-void MSG_WriteVector (sizebuf_t *sb, float *v, protocolversion_t protocol);
-void MSG_WriteAngle (sizebuf_t *sb, float f, protocolversion_t protocol);
+void MSG_WriteAngle8i (sizebuf_t *sb, vec_t f);
+void MSG_WriteAngle16i (sizebuf_t *sb, vec_t f);
+void MSG_WriteAngle32f (sizebuf_t *sb, vec_t f);
+void MSG_WriteCoord13i (sizebuf_t *sb, vec_t f);
+void MSG_WriteCoord16i (sizebuf_t *sb, vec_t f);
+void MSG_WriteCoord32f (sizebuf_t *sb, vec_t f);
+void MSG_WriteCoord (sizebuf_t *sb, vec_t f, protocolversion_t protocol);
+void MSG_WriteVector (sizebuf_t *sb, const vec3_t v, protocolversion_t protocol);
+void MSG_WriteAngle (sizebuf_t *sb, vec_t f, protocolversion_t protocol);
void MSG_BeginReading (sizebuf_t *sb);
int MSG_ReadLittleShort (sizebuf_t *sb);
float MSG_ReadLittleFloat (sizebuf_t *sb);
float MSG_ReadBigFloat (sizebuf_t *sb);
char *MSG_ReadString (sizebuf_t *sb, char *string, size_t maxstring);
-int MSG_ReadBytes (sizebuf_t *sb, int numbytes, unsigned char *out);
+/// Same as MSG_ReadString except it returns the number of bytes written to *string excluding the \0 terminator.
+size_t MSG_ReadString_len (sizebuf_t *sb, char *string, size_t maxstring);
+size_t MSG_ReadBytes (sizebuf_t *sb, size_t numbytes, unsigned char *out);
#define MSG_ReadChar(sb) ((sb)->readcount >= (sb)->cursize ? ((sb)->badread = true, -1) : (signed char)(sb)->data[(sb)->readcount++])
#define MSG_ReadByte(sb) ((sb)->readcount >= (sb)->cursize ? ((sb)->badread = true, -1) : (unsigned char)(sb)->data[(sb)->readcount++])
+/// Same as MSG_ReadByte but with no need to copy twice (first to `int` to check for -1) so each byte can be copied directly to a string[]
+#define MSG_ReadByte_opt(sb) ((sb)->readcount >= (sb)->cursize ? ((sb)->badread = true, '\0') : (unsigned char)(sb)->data[(sb)->readcount++])
#define MSG_ReadShort MSG_ReadLittleShort
#define MSG_ReadLong MSG_ReadLittleLong
#define MSG_ReadFloat MSG_ReadLittleFloat
float MSG_ReadCoord16i (sizebuf_t *sb);
float MSG_ReadCoord32f (sizebuf_t *sb);
float MSG_ReadCoord (sizebuf_t *sb, protocolversion_t protocol);
-void MSG_ReadVector (sizebuf_t *sb, float *v, protocolversion_t protocol);
+void MSG_ReadVector (sizebuf_t *sb, vec3_t v, protocolversion_t protocol);
float MSG_ReadAngle (sizebuf_t *sb, protocolversion_t protocol);
//@}
//============================================================================
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
-typedef int (*COM_LineProcessorFunc) (void *passthrough, const char *line, size_t length, float width, qboolean isContination);
+typedef int (*COM_LineProcessorFunc) (void *passthrough, const char *line, size_t length, float width, qbool isContination);
int COM_Wordwrap(const char *string, size_t length, float continuationSize, float maxWidth, COM_WordWidthFunc_t wordWidth, void *passthroughCW, COM_LineProcessorFunc processLine, void *passthroughPL);
extern char com_token[MAX_INPUTLINE];
+extern unsigned com_token_len;
+qbool COM_ParseToken_Simple(const char **datapointer, qbool returnnewline, qbool parsebackslash, qbool parsecomments);
+qbool COM_ParseToken_QuakeC(const char **datapointer, qbool returnnewline);
+qbool COM_ParseToken_VM_Tokenize(const char **datapointer, qbool returnnewline);
+qbool COM_ParseToken_Console(const char **datapointer);
-int COM_ParseToken_Simple(const char **datapointer, qboolean returnnewline, qboolean parsebackslash, qboolean parsecomments);
-int COM_ParseToken_QuakeC(const char **datapointer, qboolean returnnewline);
-int COM_ParseToken_VM_Tokenize(const char **datapointer, qboolean returnnewline);
-int COM_ParseToken_Console(const char **datapointer);
-
-extern int com_argc;
-extern const char **com_argv;
-extern int com_selffd;
-
-int COM_CheckParm (const char *parm);
void COM_Init (void);
void COM_Shutdown (void);
-void COM_InitGameType (void);
char *va(char *buf, size_t buflen, const char *format, ...) DP_FUNC_PRINTF(3);
// does a varargs printf into provided buffer, returns buffer (so it can be called in-line unlike dpsnprintf)
-
-// snprintf and vsnprintf are NOT portable. Use their DP counterparts instead
-#ifdef snprintf
-# undef snprintf
-#endif
-#define snprintf DO_NOT_USE_SNPRINTF__USE_DPSNPRINTF
-#ifdef vsnprintf
-# undef vsnprintf
+// GCC with -Werror=c++-compat will error out if static_assert is used even though the macro is valid C11...
+#ifndef __cplusplus
+#define DP_STATIC_ASSERT(expr, str) _Static_assert(expr, str)
+#else
+#define DP_STATIC_ASSERT(expr, str) static_assert(expr, str)
#endif
-#define vsnprintf DO_NOT_USE_VSNPRINTF__USE_DPVSNPRINTF
-// dpsnprintf and dpvsnprintf
-// return the number of printed characters, excluding the final '\0'
-// or return -1 if the buffer isn't big enough to contain the entire string.
-// buffer is ALWAYS null-terminated
+// snprintf and vsnprintf are NOT portable. Use their DP counterparts instead
+#undef snprintf
+#define snprintf DP_STATIC_ASSERT(0, "snprintf is forbidden for portability reasons. Use dpsnprintf instead.")
+#undef vsnprintf
+#define vsnprintf DP_STATIC_ASSERT(0, "vsnprintf is forbidden for portability reasons. Use dpvsnprintf instead.")
+
+// documentation duplicated deliberately for the benefit of IDEs that support https://www.doxygen.nl/manual/docblocks.html
+/// Returns the number of printed characters, excluding the final '\0'
+/// or returns -1 if the buffer isn't big enough to contain the entire string.
+/// Buffer is ALWAYS null-terminated.
extern int dpsnprintf (char *buffer, size_t buffersize, const char *format, ...) DP_FUNC_PRINTF(3);
+/// Returns the number of printed characters, excluding the final '\0'
+/// or returns -1 if the buffer isn't big enough to contain the entire string.
+/// Buffer is ALWAYS null-terminated.
extern int dpvsnprintf (char *buffer, size_t buffersize, const char *format, va_list args);
// A bunch of functions are forbidden for security reasons (and also to please MSVS 2005, for some of them)
-// LordHavoc: added #undef lines here to avoid warnings in Linux
+// LadyHavoc: added #undef lines here to avoid warnings in Linux
#undef strcat
-#define strcat DO_NOT_USE_STRCAT__USE_STRLCAT_OR_MEMCPY
+#define strcat DP_STATIC_ASSERT(0, "strcat is forbidden for security reasons. Use dp_strlcat or memcpy instead.")
#undef strncat
-#define strncat DO_NOT_USE_STRNCAT__USE_STRLCAT_OR_MEMCPY
+#define strncat DP_STATIC_ASSERT(0, "strncat is forbidden for security reasons. Use dp_strlcat or memcpy instead.")
#undef strcpy
-#define strcpy DO_NOT_USE_STRCPY__USE_STRLCPY_OR_MEMCPY
+#define strcpy DP_STATIC_ASSERT(0, "strcpy is forbidden for security reasons. Use dp_strlcpy or memcpy instead.")
#undef strncpy
-#define strncpy DO_NOT_USE_STRNCPY__USE_STRLCPY_OR_MEMCPY
-//#undef sprintf
-//#define sprintf DO_NOT_USE_SPRINTF__USE_DPSNPRINTF
+#define strncpy DP_STATIC_ASSERT(0, "strncpy is forbidden for security reasons. Use dp_strlcpy or memcpy instead.")
+#undef stpcpy
+#define stpcpy DP_STATIC_ASSERT(0, "stpcpy is forbidden for security reasons. Use dp_stpecpy or memcpy instead.")
+#undef ustpcpy
+#define ustpcpy DP_STATIC_ASSERT(0, "ustpcpy is forbidden for security reasons. Use dp_ustr2stp or memcpy instead.")
+#undef ustr2stp
+#define ustr2stp DP_STATIC_ASSERT(0, "ustr2stp is forbidden for security reasons. Use dp_ustr2stp or memcpy instead.")
+#undef sprintf
+#define sprintf DP_STATIC_ASSERT(0, "sprintf is forbidden for security reasons. Use dpsnprintf instead.")
+
+#undef strlcpy
+#define strlcpy DP_STATIC_ASSERT(0, "strlcpy is forbidden for stability and correctness. See common.h and common.c comments.")
+#undef strlcat
+#define strlcat DP_STATIC_ASSERT(0, "strlcat is forbidden for stability and correctness. See common.h and common.c comments.")
//============================================================================
}
userdirmode_t;
-typedef enum gamemode_e
-{
- GAME_NORMAL,
- GAME_HIPNOTIC,
- GAME_ROGUE,
- GAME_NEHAHRA,
- GAME_NEXUIZ,
- GAME_XONOTIC,
- GAME_TRANSFUSION,
- GAME_GOODVSBAD2,
- GAME_TEU,
- GAME_BATTLEMECH,
- GAME_ZYMOTIC,
- GAME_SETHERAL,
- GAME_SOM,
- GAME_TENEBRAE, // full of evil hackery
- GAME_NEOTERIC,
- GAME_OPENQUARTZ, //this game sucks
- GAME_PRYDON,
- GAME_DELUXEQUAKE,
- GAME_THEHUNTED,
- GAME_DEFEATINDETAIL2,
- GAME_DARSANA,
- GAME_CONTAGIONTHEORY,
- GAME_EDU2P,
- GAME_PROPHECY,
- GAME_BLOODOMNICIDE,
- GAME_STEELSTORM, // added by motorsep
- GAME_STRAPBOMB, // added by motorsep for Urre
- GAME_MOONHELM,
- GAME_COUNT
-}
-gamemode_t;
-
-extern gamemode_t gamemode;
-extern const char *gamename;
-extern const char *gamedirname1;
-extern const char *gamedirname2;
-extern const char *gamescreenshotname;
-extern const char *gameuserdirname;
-extern char com_modname[MAX_OSPATH];
-
-void COM_ChangeGameTypeForGameDirs(void);
-
-void COM_ToLowerString (const char *in, char *out, size_t size_out);
-void COM_ToUpperString (const char *in, char *out, size_t size_out);
+/// Returns the number of bytes written to *out excluding the \0 terminator.
+size_t COM_ToLowerString(const char *in, char *out, size_t size_out);
+/// Returns the number of bytes written to *out excluding the \0 terminator.
+size_t COM_ToUpperString(const char *in, char *out, size_t size_out);
int COM_StringBeginsWith(const char *s, const char *match);
-
int COM_ReadAndTokenizeLine(const char **text, char **argv, int maxargc, char *tokenbuf, int tokenbufsize, const char *commentprefix);
+size_t COM_StringLengthNoColors(const char *s, size_t size_s, qbool *valid);
+size_t COM_StringDecolorize(const char *in, size_t size_in, char *out, size_t size_out, qbool escape_carets);
-size_t COM_StringLengthNoColors(const char *s, size_t size_s, qboolean *valid);
-qboolean COM_StringDecolorize(const char *in, size_t size_in, char *out, size_t size_out, qboolean escape_carets);
-void COM_ToLowerString (const char *in, char *out, size_t size_out);
-void COM_ToUpperString (const char *in, char *out, size_t size_out);
-typedef struct stringlist_s
-{
- /// maxstrings changes as needed, causing reallocation of strings[] array
- int maxstrings;
- int numstrings;
- char **strings;
-} stringlist_t;
-
-int matchpattern(const char *in, const char *pattern, int caseinsensitive);
-int matchpattern_with_separator(const char *in, const char *pattern, int caseinsensitive, const char *separators, qboolean wildcard_least_one);
-void stringlistinit(stringlist_t *list);
-void stringlistfreecontents(stringlist_t *list);
-void stringlistappend(stringlist_t *list, const char *text);
-void stringlistsort(stringlist_t *list, qboolean uniq);
-void listdirectory(stringlist_t *list, const char *basepath, const char *path);
-
-char *InfoString_GetValue(const char *buffer, const char *key, char *value, size_t valuelength);
-void InfoString_SetValue(char *buffer, size_t bufferlength, const char *key, const char *value);
-void InfoString_Print(char *buffer);
-
-// strlcat and strlcpy, from OpenBSD
-// Most (all?) BSDs already have them
-#if defined(__OpenBSD__) || defined(__NetBSD__) || defined(__FreeBSD__) || defined(MACOSX)
-# define HAVE_STRLCAT 1
-# define HAVE_STRLCPY 1
-#endif
-#ifndef HAVE_STRLCAT
-/*!
- * Appends src to string dst of size siz (unlike strncat, siz is the
- * full size of dst, not space left). At most siz-1 characters
- * will be copied. Always NUL terminates (unless siz <= strlen(dst)).
- * Returns strlen(src) + MIN(siz, strlen(initial dst)).
- * If retval >= siz, truncation occurred.
- */
-size_t strlcat(char *dst, const char *src, size_t siz);
-#endif // #ifndef HAVE_STRLCAT
-
-#ifndef HAVE_STRLCPY
-/*!
- * Copy src to string dst of size siz. At most siz-1 characters
- * will be copied. Always NUL terminates (unless siz == 0).
- * Returns strlen(src); if retval >= siz, truncation occurred.
- */
-size_t strlcpy(char *dst, const char *src, size_t siz);
+#define dp_strlcpy(dst, src, dsize) dp__strlcpy(dst, src, dsize, __func__, __LINE__)
+#define dp_strlcat(dst, src, dsize) dp__strlcat(dst, src, dsize, __func__, __LINE__)
+size_t dp__strlcpy(char *dst, const char *src, size_t dsize, const char *func, unsigned line);
+size_t dp__strlcat(char *dst, const char *src, size_t dsize, const char *func, unsigned line);
+char *dp_stpecpy(char *dst, char *end, const char *src);
+char *dp_ustr2stp(char *dst, size_t dsize, const char *src, size_t slen);
-#endif // #ifndef HAVE_STRLCPY
void FindFraction(double val, int *num, int *denom, int denomMax);
size_t base64_encode(unsigned char *buf, size_t buflen, size_t outbuflen);
+#define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0]))
+
+float Com_CalcRoll (const vec3_t angles, const vec3_t velocity, const vec_t angleval, const vec_t velocityval);
+
#endif