1 files changed, 1856 insertions, 0 deletions

diff --git a/apps/plugins/sdl/progs/quake/common.c b/apps/plugins/sdl/progs/quake/common.c
new file mode 100644
index 0000000000..11be234834
--- /dev/null
+++ b/apps/plugins/sdl/progs/quake/common.c
@@ -0,0 +1,1856 @@
+/*
+Copyright (C) 1996-1997 Id Software, Inc.
+
+This program is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public License
+as published by the Free Software Foundation; either version 2
+of the License, or (at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  
+
+See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+
+*/
+// common.c -- misc functions used in client and server
+
+#include "quakedef.h"
+
+#define NUM_SAFE_ARGVS  7
+
+static char     *largv[MAX_NUM_ARGVS + NUM_SAFE_ARGVS + 1];
+static char     *argvdummy = " ";
+
+static char     *safeargvs[NUM_SAFE_ARGVS] =
+        {"-stdvid", "-nolan", "-nosound", "-nocdaudio", "-nojoy", "-nomouse", "-dibonly"};
+
+cvar_t  registered = {"registered","0"};
+cvar_t  cmdline = {"cmdline","0", false, true};
+
+qboolean        com_modified;   // set true if using non-id files
+
+qboolean                proghack;
+
+int             static_registered = 1;  // only for startup check, then set
+
+qboolean                msg_suppress_1 = 0;
+
+void COM_InitFilesystem (void);
+
+// if a packfile directory differs from this, it is assumed to be hacked
+#define PAK0_COUNT              339
+#define PAK0_CRC                32981
+
+char    com_token[1024];
+int             com_argc;
+char    **com_argv;
+
+#define CMDLINE_LENGTH  256
+char    com_cmdline[CMDLINE_LENGTH];
+
+qboolean                standard_quake = true, rogue, hipnotic;
+
+// this graphic needs to be in the pak file to use registered features
+unsigned short pop[] =
+{
+ 0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000
+,0x0000,0x0000,0x6600,0x0000,0x0000,0x0000,0x6600,0x0000
+,0x0000,0x0066,0x0000,0x0000,0x0000,0x0000,0x0067,0x0000
+,0x0000,0x6665,0x0000,0x0000,0x0000,0x0000,0x0065,0x6600
+,0x0063,0x6561,0x0000,0x0000,0x0000,0x0000,0x0061,0x6563
+,0x0064,0x6561,0x0000,0x0000,0x0000,0x0000,0x0061,0x6564
+,0x0064,0x6564,0x0000,0x6469,0x6969,0x6400,0x0064,0x6564
+,0x0063,0x6568,0x6200,0x0064,0x6864,0x0000,0x6268,0x6563
+,0x0000,0x6567,0x6963,0x0064,0x6764,0x0063,0x6967,0x6500
+,0x0000,0x6266,0x6769,0x6a68,0x6768,0x6a69,0x6766,0x6200
+,0x0000,0x0062,0x6566,0x6666,0x6666,0x6666,0x6562,0x0000
+,0x0000,0x0000,0x0062,0x6364,0x6664,0x6362,0x0000,0x0000
+,0x0000,0x0000,0x0000,0x0062,0x6662,0x0000,0x0000,0x0000
+,0x0000,0x0000,0x0000,0x0061,0x6661,0x0000,0x0000,0x0000
+,0x0000,0x0000,0x0000,0x0000,0x6500,0x0000,0x0000,0x0000
+,0x0000,0x0000,0x0000,0x0000,0x6400,0x0000,0x0000,0x0000
+};
+
+/*
+
+
+All of Quake's data access is through a hierchal file system, but the contents of the file system can be transparently merged from several sources.
+
+The "base directory" is the path to the directory holding the quake.exe and all game directories.  The sys_* files pass this to host_init in quakeparms_t->basedir.  This can be overridden with the "-basedir" command line parm to allow code debugging in a different directory.  The base directory is
+only used during filesystem initialization.
+
+The "game directory" is the first tree on the search path and directory that all generated files (savegames, screenshots, demos, config files) will be saved to.  This can be overridden with the "-game" command line parameter.  The game directory can never be changed while quake is executing.  This is a precacution against having a malicious server instruct clients to write files over areas they shouldn't.
+
+The "cache directory" is only used during development to save network bandwidth, especially over ISDN / T1 lines.  If there is a cache directory
+specified, when a file is found by the normal search path, it will be mirrored
+into the cache directory, then opened there.
+
+
+
+FIXME:
+The file "parms.txt" will be read out of the game directory and appended to the current command line arguments to allow different games to initialize startup parms differently.  This could be used to add a "-sspeed 22050" for the high quality sound edition.  Because they are added at the end, they will not override an explicit setting on the original command line.
+        
+*/
+
+//============================================================================
+
+
+// ClearLink is used for new headnodes
+void ClearLink (link_t *l)
+{
+        l->prev = l->next = l;
+}
+
+void RemoveLink (link_t *l)
+{
+        l->next->prev = l->prev;
+        l->prev->next = l->next;
+}
+
+void InsertLinkBefore (link_t *l, link_t *before)
+{
+        l->next = before;
+        l->prev = before->prev;
+        l->prev->next = l;
+        l->next->prev = l;
+}
+void InsertLinkAfter (link_t *l, link_t *after)
+{
+        l->next = after->next;
+        l->prev = after;
+        l->prev->next = l;
+        l->next->prev = l;
+}
+
+/*
+============================================================================
+
+                                        LIBRARY REPLACEMENT FUNCTIONS
+
+============================================================================
+*/
+
+void Q_memset (void *dest, int fill, int count)
+{
+        int             i;
+        
+        if ( (((long)dest | count) & 3) == 0)
+        {
+                count >>= 2;
+                fill = fill | (fill<<8) | (fill<<16) | (fill<<24);
+                for (i=0 ; i<count ; i++)
+                        ((int *)dest)[i] = fill;
+        }
+        else
+                for (i=0 ; i<count ; i++)
+                        ((byte *)dest)[i] = fill;
+}
+
+void Q_memcpy (void *dest, void *src, int count)
+{
+        int             i;
+        
+        if (( ( (long)dest | (long)src | count) & 3) == 0 )
+        {
+                count>>=2;
+                for (i=0 ; i<count ; i++)
+                        ((int *)dest)[i] = ((int *)src)[i];
+        }
+        else
+                for (i=0 ; i<count ; i++)
+                        ((byte *)dest)[i] = ((byte *)src)[i];
+}
+
+int Q_memcmp (void *m1, void *m2, int count)
+{
+        while(count)
+        {
+                count--;
+                if (((byte *)m1)[count] != ((byte *)m2)[count])
+                        return -1;
+        }
+        return 0;
+}
+
+void Q_strcpy (char *dest, char *src)
+{
+        while (*src)
+        {
+                *dest++ = *src++;
+        }
+        *dest++ = 0;
+}
+
+void Q_strncpy (char *dest, char *src, int count)
+{
+        while (*src && count--)
+        {
+                *dest++ = *src++;
+        }
+        if (count)
+                *dest++ = 0;
+}
+
+int Q_strlen (char *str)
+{
+        int             count;
+        
+        count = 0;
+        while (str[count])
+                count++;
+
+        return count;
+}
+
+char *Q_strrchr(char *s, char c)
+{
+    int len = Q_strlen(s);
+    s += len;
+    while (len--)
+        if (*--s == c) return s;
+    return 0;
+}
+
+void Q_strcat (char *dest, char *src)
+{
+        dest += Q_strlen(dest);
+        Q_strcpy (dest, src);
+}
+
+int Q_strcmp (char *s1, char *s2)
+{
+        while (1)
+        {
+                if (*s1 != *s2)
+                        return -1;              // strings not equal    
+                if (!*s1)
+                        return 0;               // strings are equal
+                s1++;
+                s2++;
+        }
+        
+        return -1;
+}
+
+int Q_strncmp (char *s1, char *s2, int count)
+{
+        while (1)
+        {
+                if (!count--)
+                        return 0;
+                if (*s1 != *s2)
+                        return -1;              // strings not equal    
+                if (!*s1)
+                        return 0;               // strings are equal
+                s1++;
+                s2++;
+        }
+        
+        return -1;
+}
+
+int Q_strncasecmp (char *s1, char *s2, int n)
+{
+        int             c1, c2;
+        
+        while (1)
+        {
+                c1 = *s1++;
+                c2 = *s2++;
+
+                if (!n--)
+                        return 0;               // strings are equal until end point
+                
+                if (c1 != c2)
+                {
+                        if (c1 >= 'a' && c1 <= 'z')
+                                c1 -= ('a' - 'A');
+                        if (c2 >= 'a' && c2 <= 'z')
+                                c2 -= ('a' - 'A');
+                        if (c1 != c2)
+                                return -1;              // strings not equal
+                }
+                if (!c1)
+                        return 0;               // strings are equal
+//              s1++;
+//              s2++;
+        }
+        
+        return -1;
+}
+
+int Q_strcasecmp (char *s1, char *s2)
+{
+        return Q_strncasecmp (s1, s2, 99999);
+}
+
+int Q_atoi (char *str)
+{
+        int             val;
+        int             sign;
+        int             c;
+        
+        if (*str == '-')
+        {
+                sign = -1;
+                str++;
+        }
+        else
+                sign = 1;
+                
+        val = 0;
+
+//
+// check for hex
+//
+        if (str[0] == '0' && (str[1] == 'x' || str[1] == 'X') )
+        {
+                str += 2;
+                while (1)
+                {
+                        c = *str++;
+                        if (c >= '0' && c <= '9')
+                                val = (val<<4) + c - '0';
+                        else if (c >= 'a' && c <= 'f')
+                                val = (val<<4) + c - 'a' + 10;
+                        else if (c >= 'A' && c <= 'F')
+                                val = (val<<4) + c - 'A' + 10;
+                        else
+                                return val*sign;
+                }
+        }
+        
+//
+// check for character
+//
+        if (str[0] == '\'')
+        {
+                return sign * str[1];
+        }
+        
+//
+// assume decimal
+//
+        while (1)
+        {
+                c = *str++;
+                if (c <'0' || c > '9')
+                        return val*sign;
+                val = val*10 + c - '0';
+        }
+        
+        return 0;
+}
+
+
+float Q_atof (char *str)
+{
+        double                  val;
+        int             sign;
+        int             c;
+        int             decimal, total;
+        
+        if (*str == '-')
+        {
+                sign = -1;
+                str++;
+        }
+        else
+                sign = 1;
+                
+        val = 0;
+
+//
+// check for hex
+//
+        if (str[0] == '0' && (str[1] == 'x' || str[1] == 'X') )
+        {
+                str += 2;
+                while (1)
+                {
+                        c = *str++;
+                        if (c >= '0' && c <= '9')
+                                val = (val*16) + c - '0';
+                        else if (c >= 'a' && c <= 'f')
+                                val = (val*16) + c - 'a' + 10;
+                        else if (c >= 'A' && c <= 'F')
+                                val = (val*16) + c - 'A' + 10;
+                        else
+                                return val*sign;
+                }
+        }
+        
+//
+// check for character
+//
+        if (str[0] == '\'')
+        {
+                return sign * str[1];
+        }
+        
+//
+// assume decimal
+//
+        decimal = -1;
+        total = 0;
+        while (1)
+        {
+                c = *str++;
+                if (c == '.')
+                {
+                        decimal = total;
+                        continue;
+                }
+                if (c <'0' || c > '9')
+                        break;
+                val = val*10 + c - '0';
+                total++;
+        }
+
+        if (decimal == -1)
+                return val*sign;
+        while (total > decimal)
+        {
+                val /= 10;
+                total--;
+        }
+        
+        return val*sign;
+}
+
+/*
+============================================================================
+
+                                        BYTE ORDER FUNCTIONS
+
+============================================================================
+*/
+
+#ifdef SDL
+#include "SDL_byteorder.h"
+#endif
+
+qboolean        bigendien;
+
+short   (*BigShort) (short l);
+short   (*LittleShort) (short l);
+int     (*BigLong) (int l);
+int     (*LittleLong) (int l);
+float   (*BigFloat) (float l);
+float   (*LittleFloat) (float l);
+
+short   ShortSwap (short l)
+{
+        byte    b1,b2;
+
+        b1 = l&255;
+        b2 = (l>>8)&255;
+
+        return (b1<<8) + b2;
+}
+
+short   ShortNoSwap (short l)
+{
+        return l;
+}
+
+int    LongSwap (int l)
+{
+        byte    b1,b2,b3,b4;
+
+        b1 = l&255;
+        b2 = (l>>8)&255;
+        b3 = (l>>16)&255;
+        b4 = (l>>24)&255;
+
+        return ((int)b1<<24) + ((int)b2<<16) + ((int)b3<<8) + b4;
+}
+
+int     LongNoSwap (int l)
+{
+        return l;
+}
+
+float FloatSwap (float f)
+{
+        union
+        {
+                float   f;
+                byte    b[4];
+        } dat1, dat2;
+        
+        
+        dat1.f = f;
+        dat2.b[0] = dat1.b[3];
+        dat2.b[1] = dat1.b[2];
+        dat2.b[2] = dat1.b[1];
+        dat2.b[3] = dat1.b[0];
+        return dat2.f;
+}
+
+float FloatNoSwap (float f)
+{
+        return f;
+}
+
+/*
+==============================================================================
+
+                        MESSAGE IO FUNCTIONS
+
+Handles byte ordering and avoids alignment errors
+==============================================================================
+*/
+
+//
+// writing functions
+//
+
+void MSG_WriteChar (sizebuf_t *sb, int c)
+{
+        byte    *buf;
+        
+#ifdef PARANOID
+        if (c < -128 || c > 127)
+                Sys_Error ("MSG_WriteChar: range error");
+#endif
+
+        buf = SZ_GetSpace (sb, 1);
+        buf[0] = c;
+}
+
+void MSG_WriteByte (sizebuf_t *sb, int c)
+{
+        byte    *buf;
+        
+#ifdef PARANOID
+        if (c < 0 || c > 255)
+                Sys_Error ("MSG_WriteByte: range error");
+#endif
+
+        buf = SZ_GetSpace (sb, 1);
+        buf[0] = c;
+}
+
+void MSG_WriteShort (sizebuf_t *sb, int c)
+{
+        byte    *buf;
+        
+#ifdef PARANOID
+        if (c < ((short)0x8000) || c > (short)0x7fff)
+                Sys_Error ("MSG_WriteShort: range error");
+#endif
+
+        buf = SZ_GetSpace (sb, 2);
+        buf[0] = c&0xff;
+        buf[1] = c>>8;
+}
+
+void MSG_WriteLong (sizebuf_t *sb, int c)
+{
+        byte    *buf;
+        
+        buf = SZ_GetSpace (sb, 4);
+        buf[0] = c&0xff;
+        buf[1] = (c>>8)&0xff;
+        buf[2] = (c>>16)&0xff;
+        buf[3] = c>>24;
+}
+
+void MSG_WriteFloat (sizebuf_t *sb, float f)
+{
+        union
+        {
+                float   f;
+                int     l;
+        } dat;
+        
+        
+        dat.f = f;
+        dat.l = LittleLong (dat.l);
+        
+        SZ_Write (sb, &dat.l, 4);
+}
+
+void MSG_WriteString (sizebuf_t *sb, char *s)
+{
+        if (!s)
+                SZ_Write (sb, "", 1);
+        else
+                SZ_Write (sb, s, Q_strlen(s)+1);
+}
+
+void MSG_WriteCoord (sizebuf_t *sb, float f)
+{
+        MSG_WriteShort (sb, (int)(f*8));
+}
+
+void MSG_WriteAngle (sizebuf_t *sb, float f)
+{
+        MSG_WriteByte (sb, ((int)f*256/360) & 255);
+}
+
+//
+// reading functions
+//
+int                     msg_readcount;
+qboolean        msg_badread;
+
+void MSG_BeginReading (void)
+{
+        msg_readcount = 0;
+        msg_badread = false;
+}
+
+// returns -1 and sets msg_badread if no more characters are available
+int MSG_ReadChar (void)
+{
+        int     c;
+        
+        if (msg_readcount+1 > net_message.cursize)
+        {
+                msg_badread = true;
+                return -1;
+        }
+                
+        c = (signed char)net_message.data[msg_readcount];
+        msg_readcount++;
+        
+        return c;
+}
+
+int MSG_ReadByte (void)
+{
+        int     c;
+        
+        if (msg_readcount+1 > net_message.cursize)
+        {
+                msg_badread = true;
+                return -1;
+        }
+                
+        c = (unsigned char)net_message.data[msg_readcount];
+        msg_readcount++;
+        
+        return c;
+}
+
+int MSG_ReadShort (void)
+{
+        int     c;
+        
+        if (msg_readcount+2 > net_message.cursize)
+        {
+                msg_badread = true;
+                return -1;
+        }
+                
+        c = (short)(net_message.data[msg_readcount]
+        + (net_message.data[msg_readcount+1]<<8));
+        
+        msg_readcount += 2;
+        
+        return c;
+}
+
+int MSG_ReadLong (void)
+{
+        int     c;
+        
+        if (msg_readcount+4 > net_message.cursize)
+        {
+                msg_badread = true;
+                return -1;
+        }
+                
+        c = net_message.data[msg_readcount]
+        + (net_message.data[msg_readcount+1]<<8)
+        + (net_message.data[msg_readcount+2]<<16)
+        + (net_message.data[msg_readcount+3]<<24);
+        
+        msg_readcount += 4;
+        
+        return c;
+}
+
+float MSG_ReadFloat (void)
+{
+        union
+        {
+                byte    b[4];
+                float   f;
+                int     l;
+        } dat;
+        
+        dat.b[0] =      net_message.data[msg_readcount];
+        dat.b[1] =      net_message.data[msg_readcount+1];
+        dat.b[2] =      net_message.data[msg_readcount+2];
+        dat.b[3] =      net_message.data[msg_readcount+3];
+        msg_readcount += 4;
+        
+        dat.l = LittleLong (dat.l);
+
+        return dat.f;   
+}
+
+char *MSG_ReadString (void)
+{
+        static char     string[2048];
+        int             l,c;
+        
+        l = 0;
+        do
+        {
+                c = MSG_ReadChar ();
+                if (c == -1 || c == 0)
+                        break;
+                string[l] = c;
+                l++;
+        } while (l < sizeof(string)-1);
+        
+        string[l] = 0;
+        
+        return string;
+}
+
+float MSG_ReadCoord (void)
+{
+        return MSG_ReadShort() * (1.0/8);
+}
+
+float MSG_ReadAngle (void)
+{
+        return MSG_ReadChar() * (360.0/256);
+}
+
+
+
+//===========================================================================
+
+void SZ_Alloc (sizebuf_t *buf, int startsize)
+{
+        if (startsize < 256)
+                startsize = 256;
+        buf->data = Hunk_AllocName (startsize, "sizebuf");
+        buf->maxsize = startsize;
+        buf->cursize = 0;
+}
+
+
+void SZ_Free (sizebuf_t *buf)
+{
+//      Z_Free (buf->data);
+//      buf->data = NULL;
+//      buf->maxsize = 0;
+        buf->cursize = 0;
+}
+
+void SZ_Clear (sizebuf_t *buf)
+{
+        buf->cursize = 0;
+}
+
+void *SZ_GetSpace (sizebuf_t *buf, int length)
+{
+        void    *data;
+        
+        if (buf->cursize + length > buf->maxsize)
+        {
+                if (!buf->allowoverflow)
+                        Sys_Error ("SZ_GetSpace: overflow without allowoverflow set");
+                
+                if (length > buf->maxsize)
+                        Sys_Error ("SZ_GetSpace: %i is > full buffer size", length);
+                        
+                buf->overflowed = true;
+                Con_Printf ("SZ_GetSpace: overflow");
+                SZ_Clear (buf); 
+        }
+
+        data = buf->data + buf->cursize;
+        buf->cursize += length;
+        
+        return data;
+}
+
+void SZ_Write (sizebuf_t *buf, void *data, int length)
+{
+        Q_memcpy (SZ_GetSpace(buf,length),data,length);         
+}
+
+void SZ_Print (sizebuf_t *buf, char *data)
+{
+        int             len;
+        
+        len = Q_strlen(data)+1;
+
+// byte * cast to keep VC++ happy
+        if (buf->data[buf->cursize-1])
+                Q_memcpy ((byte *)SZ_GetSpace(buf, len),data,len); // no trailing 0
+        else
+                Q_memcpy ((byte *)SZ_GetSpace(buf, len-1)-1,data,len); // write over trailing 0
+}
+
+
+//============================================================================
+
+
+/*
+============
+COM_SkipPath
+============
+*/
+char *COM_SkipPath (char *pathname)
+{
+        char    *last;
+        
+        last = pathname;
+        while (*pathname)
+        {
+                if (*pathname=='/')
+                        last = pathname+1;
+                pathname++;
+        }
+        return last;
+}
+
+/*
+============
+COM_StripExtension
+============
+*/
+void COM_StripExtension (char *in, char *out)
+{
+        while (*in && *in != '.')
+                *out++ = *in++;
+        *out = 0;
+}
+
+/*
+============
+COM_FileExtension
+============
+*/
+char *COM_FileExtension (char *in)
+{
+        static char exten[8];
+        int             i;
+
+        while (*in && *in != '.')
+                in++;
+        if (!*in)
+                return "";
+        in++;
+        for (i=0 ; i<7 && *in ; i++,in++)
+                exten[i] = *in;
+        exten[i] = 0;
+        return exten;
+}
+
+/*
+============
+COM_FileBase
+============
+*/
+int *check_ptr = NULL;
+
+void COM_FileBase (char *in, char *out)
+{
+        char *s, *s2;
+
+        s = in + strlen(in) - 1;
+        
+        while (s != in && *s != '.')
+                s--;
+        
+        for (s2 = s ; *s2 && *s2 != '/' && s2 != in; s2--)
+        ;
+        
+        if (s-s2 < 2)
+        {
+                strcpy (out,"?model?");
+        }
+        else
+        {
+            /* BUG */
+                s--;
+                //printf("writing %d bytes to outbuf", s-s2);
+                Q_strncpy (out,s2+1, s-s2);
+                out[s-s2] = 0;
+        }
+}
+
+
+/*
+==================
+COM_DefaultExtension
+==================
+*/
+void COM_DefaultExtension (char *path, char *extension)
+{
+        char    *src;
+//
+// if path doesn't have a .EXT, append extension
+// (extension should include the .)
+//
+        src = path + strlen(path) - 1;
+
+        while (*src != '/' && src != path)
+        {
+                if (*src == '.')
+                        return;                 // it has an extension
+                src--;
+        }
+
+        strcat (path, extension);
+}
+
+
+/*
+==============
+COM_Parse
+
+Parse a token out of a string
+==============
+*/
+char *COM_Parse (char *data)
+{
+        int             c;
+        int             len;
+        
+        len = 0;
+        com_token[0] = 0;
+        
+        if (!data)
+                return NULL;
+                
+// skip whitespace
+skipwhite:
+        while ( (c = *data) <= ' ')
+        {
+                if (c == 0)
+                        return NULL;                    // end of file;
+                data++;
+        }
+        
+// skip // comments
+        if (c=='/' && data[1] == '/')
+        {
+                while (*data && *data != '\n')
+                        data++;
+                goto skipwhite;
+        }
+        
+
+// handle quoted strings specially
+        if (c == '\"')
+        {
+                data++;
+                while (1)
+                {
+                        c = *data++;
+                        if (c=='\"' || !c)
+                        {
+                                com_token[len] = 0;
+                                return data;
+                        }
+                        com_token[len] = c;
+                        len++;
+                }
+        }
+
+// parse single characters
+        if (c=='{' || c=='}'|| c==')'|| c=='(' || c=='\'' || c==':')
+        {
+                com_token[len] = c;
+                len++;
+                com_token[len] = 0;
+                return data+1;
+        }
+
+// parse a regular word
+        do
+        {
+                com_token[len] = c;
+                data++;
+                len++;
+                c = *data;
+        if (c=='{' || c=='}'|| c==')'|| c=='(' || c=='\'' || c==':')
+                        break;
+        } while (c>32);
+        
+        com_token[len] = 0;
+        return data;
+}
+
+
+/*
+================
+COM_CheckParm
+
+Returns the position (1 to argc-1) in the program's argument list
+where the given parameter apears, or 0 if not present
+================
+*/
+int COM_CheckParm (char *parm)
+{
+        int             i;
+        
+        for (i=1 ; i<com_argc ; i++)
+        {
+                if (!com_argv[i])
+                        continue;               // NEXTSTEP sometimes clears appkit vars.
+                if (!Q_strcmp (parm,com_argv[i]))
+                        return i;
+        }
+                
+        return 0;
+}
+
+/*
+================
+COM_CheckRegistered
+
+Looks for the pop.txt file and verifies it.
+Sets the "registered" cvar.
+Immediately exits out if an alternate game was attempted to be started without
+being registered.
+================
+*/
+void COM_CheckRegistered (void)
+{
+        int             h;
+        unsigned short  check[128];
+        int                     i;
+
+        COM_OpenFile("gfx/pop.lmp", &h);
+        static_registered = 0;
+
+        if (h == -1)
+        {
+#if WINDED
+        Sys_Error ("This dedicated server requires a full registered copy of Quake");
+#endif
+                Con_Printf ("Playing shareware version.\n");
+                if (com_modified)
+                        Sys_Error ("You must have the registered version to use modified games");
+                return;
+        }
+
+        Sys_FileRead (h, check, sizeof(check));
+        COM_CloseFile (h);
+        
+        for (i=0 ; i<128 ; i++)
+                if (pop[i] != (unsigned short)BigShort (check[i]))
+                        Sys_Error ("Corrupted data file.");
+        
+        Cvar_Set ("cmdline", com_cmdline);
+        Cvar_Set ("registered", "1");
+        static_registered = 1;
+        Con_Printf ("Playing registered version.\n");
+}
+
+
+void COM_Path_f (void);
+
+
+/*
+================
+COM_InitArgv
+================
+*/
+void COM_InitArgv (int argc, char **argv)
+{
+        qboolean        safe;
+        int             i, j, n;
+
+// reconstitute the command line for the cmdline externally visible cvar
+        n = 0;
+
+        for (j=0 ; (j<MAX_NUM_ARGVS) && (j< argc) ; j++)
+        {
+                i = 0;
+
+                while ((n < (CMDLINE_LENGTH - 1)) && argv[j][i])
+                {
+                        com_cmdline[n++] = argv[j][i++];
+                }
+
+                if (n < (CMDLINE_LENGTH - 1))
+                        com_cmdline[n++] = ' ';
+                else
+                        break;
+        }
+
+        com_cmdline[n] = 0;
+
+        safe = false;
+
+        for (com_argc=0 ; (com_argc<MAX_NUM_ARGVS) && (com_argc < argc) ;
+                 com_argc++)
+        {
+                largv[com_argc] = argv[com_argc];
+                if (!Q_strcmp ("-safe", argv[com_argc]))
+                        safe = true;
+        }
+
+        if (safe)
+        {
+        // force all the safe-mode switches. Note that we reserved extra space in
+        // case we need to add these, so we don't need an overflow check
+                for (i=0 ; i<NUM_SAFE_ARGVS ; i++)
+                {
+                        largv[com_argc] = safeargvs[i];
+                        com_argc++;
+                }
+        }
+
+        largv[com_argc] = argvdummy;
+        com_argv = largv;
+
+        if (COM_CheckParm ("-rogue"))
+        {
+                rogue = true;
+                standard_quake = false;
+        }
+
+        if (COM_CheckParm ("-hipnotic"))
+        {
+                hipnotic = true;
+                standard_quake = false;
+        }
+}
+
+
+/*
+================
+COM_Init
+================
+*/
+void COM_Init (char *basedir)
+{
+        byte    swaptest[2] = {1,0};
+
+// set the byte swapping variables in a portable manner 
+#ifdef SDL
+        // This is necessary because egcs 1.1.1 mis-compiles swaptest with -O2
+        if ( SDL_BYTEORDER == SDL_LIL_ENDIAN )
+#else
+        if ( *(short *)swaptest == 1)
+#endif
+        {
+                bigendien = false;
+                BigShort = ShortSwap;
+                LittleShort = ShortNoSwap;
+                BigLong = LongSwap;
+                LittleLong = LongNoSwap;
+                BigFloat = FloatSwap;
+                LittleFloat = FloatNoSwap;
+        }
+        else
+        {
+                bigendien = true;
+                BigShort = ShortNoSwap;
+                LittleShort = ShortSwap;
+                BigLong = LongNoSwap;
+                LittleLong = LongSwap;
+                BigFloat = FloatNoSwap;
+                LittleFloat = FloatSwap;
+        }
+
+        Cvar_RegisterVariable (&registered);
+        Cvar_RegisterVariable (&cmdline);
+        Cmd_AddCommand ("path", COM_Path_f);
+
+        COM_InitFilesystem ();
+        COM_CheckRegistered ();
+}
+
+
+/*
+============
+va
+
+does a varargs printf into a temp buffer, so I don't need to have
+varargs versions of all text functions.
+FIXME: make this buffer size safe someday
+============
+*/
+char    *va(char *format, ...)
+{
+        va_list         argptr;
+        static char             string[1024];
+        
+        va_start (argptr, format);
+        vsprintf (string, format,argptr);
+        va_end (argptr);
+
+        return string;  
+}
+
+
+/// just for debugging
+int     memsearch (byte *start, int count, int search)
+{
+        int             i;
+        
+        for (i=0 ; i<count ; i++)
+                if (start[i] == search)
+                        return i;
+        return -1;
+}
+
+/*
+=============================================================================
+
+QUAKE FILESYSTEM
+
+=============================================================================
+*/
+
+int     com_filesize;
+
+
+//
+// in memory
+//
+
+typedef struct
+{
+        char    name[MAX_QPATH];
+        int             filepos, filelen;
+} packfile_t;
+
+typedef struct pack_s
+{
+        char    filename[MAX_OSPATH];
+        int             handle;
+        int             numfiles;
+        packfile_t      *files;
+} pack_t;
+
+//
+// on disk
+//
+typedef struct
+{
+        char    name[56];
+        int             filepos, filelen;
+} dpackfile_t;
+
+typedef struct
+{
+        char    id[4];
+        int             dirofs;
+        int             dirlen;
+} dpackheader_t;
+
+#define MAX_FILES_IN_PACK       2048
+
+char    com_cachedir[MAX_OSPATH];
+char    com_gamedir[MAX_OSPATH];
+
+typedef struct searchpath_s
+{
+        char    filename[MAX_OSPATH];
+        pack_t  *pack;          // only one of filename / pack will be used
+        struct searchpath_s *next;
+} searchpath_t;
+
+searchpath_t    *com_searchpaths;
+
+/*
+============
+COM_Path_f
+
+============
+*/
+void COM_Path_f (void)
+{
+        searchpath_t    *s;
+        
+        Con_Printf ("Current search path:\n");
+        for (s=com_searchpaths ; s ; s=s->next)
+        {
+                if (s->pack)
+                {
+                        Con_Printf ("%s (%i files)\n", s->pack->filename, s->pack->numfiles);
+                }
+                else
+                        Con_Printf ("%s\n", s->filename);
+        }
+}
+
+/*
+============
+COM_WriteFile
+
+The filename will be prefixed by the current game directory
+============
+*/
+void COM_WriteFile (char *filename, void *data, int len)
+{
+        int             handle;
+        char    name[MAX_OSPATH];
+        
+        sprintf (name, "%s/%s", com_gamedir, filename);
+
+        handle = Sys_FileOpenWrite (name);
+        if (handle == -1)
+        {
+                Sys_Printf ("COM_WriteFile: failed on %s\n", name);
+                return;
+        }
+        
+        Sys_Printf ("COM_WriteFile: %s\n", name);
+        Sys_FileWrite (handle, data, len);
+        Sys_FileClose (handle);
+}
+
+
+/*
+============
+COM_CreatePath
+
+Only used for CopyFile
+============
+*/
+void    COM_CreatePath (char *path)
+{
+        char    *ofs;
+        
+        for (ofs = path+1 ; *ofs ; ofs++)
+        {
+                if (*ofs == '/')
+                {       // create the directory
+                        *ofs = 0;
+                        Sys_mkdir (path);
+                        *ofs = '/';
+                }
+        }
+}
+
+
+/*
+===========
+COM_CopyFile
+
+Copies a file over from the net to the local cache, creating any directories
+needed.  This is for the convenience of developers using ISDN from home.
+===========
+*/
+void COM_CopyFile (char *netpath, char *cachepath)
+{
+        int             in, out;
+        int             remaining, count;
+        char    buf[4096];
+        
+        remaining = Sys_FileOpenRead (netpath, &in);            
+        COM_CreatePath (cachepath);     // create directories up to the cache file
+        out = Sys_FileOpenWrite (cachepath);
+        
+        while (remaining)
+        {
+                if (remaining < sizeof(buf))
+                        count = remaining;
+                else
+                        count = sizeof(buf);
+                Sys_FileRead (in, buf, count);
+                Sys_FileWrite (out, buf, count);
+                remaining -= count;
+        }
+
+        Sys_FileClose (in);
+        Sys_FileClose (out);    
+}
+
+/*
+===========
+COM_FindFile
+
+Finds the file in the search path.
+Sets com_filesize and one of handle or file
+===========
+*/
+int COM_FindFile (char *filename, int *handle, FILE **file)
+{
+        searchpath_t    *search;
+        char            netpath[MAX_OSPATH];
+        char            cachepath[MAX_OSPATH];
+        pack_t          *pak;
+        int                     i;
+        int                     findtime, cachetime;
+
+        if (file && handle)
+                Sys_Error ("COM_FindFile: both handle and file set");
+        if (!file && !handle)
+                Sys_Error ("COM_FindFile: neither handle or file set");
+                
+//
+// search through the path, one element at a time
+//
+        search = com_searchpaths;
+        if (proghack)
+        {       // gross hack to use quake 1 progs with quake 2 maps
+                if (!strcmp(filename, "progs.dat"))
+                        search = search->next;
+        }
+
+        for ( ; search ; search = search->next)
+        {
+        // is the element a pak file?
+                if (search->pack)
+                {
+                // look through all the pak file elements
+                        pak = search->pack;
+                        for (i=0 ; i<pak->numfiles ; i++)
+                                if (!strcmp (pak->files[i].name, filename))
+                                {       // found it!
+                                        Con_DPrintf ("PackFile: %s : %s\n",pak->filename, filename);
+                                        if (handle)
+                                        {
+                                                *handle = pak->handle;
+                                                Sys_FileSeek (pak->handle, pak->files[i].filepos);
+                                                //if(*handle != 1)
+                                                    //rb->splashf(HZ, "handle found: %d", *handle);
+                                        }
+                                        else
+                                        {       // open a new file on the pakfile
+                                                *file = fopen (pak->filename, "rb");
+                                                if (*file)
+                                                        fseek (*file, pak->files[i].filepos, SEEK_SET);
+                                                else
+                                                {
+                                                    Sys_Error("open failed: %d", 0);
+                                                }
+                                        }
+                                        com_filesize = pak->files[i].filelen;
+                                        return com_filesize;
+                                }
+                }
+                else
+                {               
+        // check a file in the directory tree
+                        if (!static_registered)
+                        {       // if not a registered version, don't ever go beyond base
+                                if ( strchr (filename, '/') || strchr (filename,'\\'))
+                                        continue;
+                        }
+                        
+                        sprintf (netpath, "%s/%s",search->filename, filename);
+                        
+                        findtime = Sys_FileTime (netpath);
+                        if (findtime == -1)
+                                continue;
+                                
+                // see if the file needs to be updated in the cache
+                        if (!com_cachedir[0])
+                                strcpy (cachepath, netpath);
+                        else
+                        {       
+#if defined(_WIN32)
+                                if ((strlen(netpath) < 2) || (netpath[1] != ':'))
+                                        sprintf (cachepath,"%s%s", com_cachedir, netpath);
+                                else
+                                        sprintf (cachepath,"%s%s", com_cachedir, netpath+2);
+#else
+                                sprintf (cachepath,"%s/%s", com_cachedir, netpath);
+#endif
+
+                                cachetime = Sys_FileTime (cachepath);
+                        
+                                if (cachetime < findtime)
+                                        COM_CopyFile (netpath, cachepath);
+                                strcpy (netpath, cachepath);
+                        }       
+
+                        Sys_Printf ("FindFile: %s\n",netpath);
+                        com_filesize = Sys_FileOpenRead (netpath, &i);
+                        if (handle)
+                                *handle = i;
+                        else
+                        {
+                                Sys_FileClose (i);
+                                *file = fopen (netpath, "rb");
+                        }
+                        return com_filesize;
+                }
+                
+        }
+        
+        Sys_Printf ("FindFile: can't find %s\n", filename);
+        
+        if (handle)
+                *handle = -1;
+        else
+                *file = NULL;
+        com_filesize = -1;
+        return -1;
+}
+
+
+/*
+===========
+COM_OpenFile
+
+filename never has a leading slash, but may contain directory walks
+returns a handle and a length
+it may actually be inside a pak file
+===========
+*/
+int COM_OpenFile (char *filename, int *handle)
+{
+        return COM_FindFile (filename, handle, NULL);
+}
+
+/*
+===========
+COM_FOpenFile
+
+If the requested file is inside a packfile, a new FILE * will be opened
+into the file.
+===========
+*/
+int COM_FOpenFile (char *filename, FILE **file)
+{
+        return COM_FindFile (filename, NULL, file);
+}
+
+/*
+============
+COM_CloseFile
+
+If it is a pak file handle, don't really close it
+============
+*/
+void COM_CloseFile (int h)
+{
+        searchpath_t    *s;
+        
+        for (s = com_searchpaths ; s ; s=s->next)
+                if (s->pack && s->pack->handle == h)
+                        return;
+                        
+        Sys_FileClose (h);
+}
+
+
+/*
+============
+COM_LoadFile
+
+Filename are reletive to the quake directory.
+Allways appends a 0 byte.
+============
+*/
+cache_user_t *loadcache;
+byte    *loadbuf;
+int             loadsize;
+byte *COM_LoadFile (char *path, int usehunk)
+{
+    //printf("COM_LoadFile(%s)", path);
+        int             h;
+        byte    *buf;
+        char    base[32];
+        int             len;
+
+        buf = NULL;     // quiet compiler warning
+
+// look for it in the filesystem or pack files
+        len = COM_OpenFile (path, &h);
+        if (h == -1)
+                return NULL;
+
+        check_ptr = &h;
+        
+        //printf("handle %d", h);
+// extract the filename base name for hunk tag
+        /* BUG IS HERE */
+        COM_FileBase (path, base);
+
+        //printf("handle %d base \"%s\"", h, base);
+        //printf("");
+        
+        if (usehunk == 1)
+                buf = Hunk_AllocName (len+1, base);
+        else if (usehunk == 2)
+                buf = Hunk_TempAlloc (len+1);
+        else if (usehunk == 0)
+                buf = Z_Malloc (len+1);
+        else if (usehunk == 3)
+                buf = Cache_Alloc (loadcache, len+1, base);
+        else if (usehunk == 4)
+        {
+                if (len+1 > loadsize)
+                        buf = Hunk_TempAlloc (len+1);
+                else
+                        buf = loadbuf;
+        }
+        else
+                Sys_Error ("COM_LoadFile: bad usehunk");
+        
+        if (!buf)
+                Sys_Error ("COM_LoadFile: not enough space for %s", path);
+                
+        ((byte *)buf)[len] = 0;
+
+        Draw_BeginDisc ();
+        Sys_FileRead (h, buf, len);
+        COM_CloseFile (h);
+        Draw_EndDisc ();
+        
+        return buf;
+}
+
+byte *COM_LoadHunkFile (char *path)
+{
+        return COM_LoadFile (path, 1);
+}
+
+byte *COM_LoadTempFile (char *path)
+{
+        return COM_LoadFile (path, 2);
+}
+
+void COM_LoadCacheFile (char *path, struct cache_user_s *cu)
+{
+        loadcache = cu;
+        COM_LoadFile (path, 3);
+}
+
+// uses temp hunk if larger than bufsize
+byte *COM_LoadStackFile (char *path, void *buffer, int bufsize)
+{
+        byte    *buf;
+        
+        loadbuf = (byte *)buffer;
+        loadsize = bufsize;
+        buf = COM_LoadFile (path, 4);
+        
+        return buf;
+}
+
+/*
+=================
+COM_LoadPackFile
+
+Takes an explicit (not game tree related) path to a pak file.
+
+Loads the header and directory, adding the files at the beginning
+of the list so they override previous pack files.
+=================
+*/
+pack_t *COM_LoadPackFile (char *packfile)
+{
+        dpackheader_t   header;
+        int                             i;
+        packfile_t              *newfiles;
+        int                             numpackfiles;
+        pack_t                  *pack;
+        int                             packhandle;
+        dpackfile_t             info[MAX_FILES_IN_PACK];
+        unsigned short          crc;
+
+        if (Sys_FileOpenRead (packfile, &packhandle) == -1)
+        {
+//              Con_Printf ("Couldn't open %s\n", packfile);
+                return NULL;
+        }
+        Sys_FileRead (packhandle, (void *)&header, sizeof(header));
+        if (header.id[0] != 'P' || header.id[1] != 'A'
+        || header.id[2] != 'C' || header.id[3] != 'K')
+                Sys_Error ("%s is not a packfile", packfile);
+        header.dirofs = LittleLong (header.dirofs);
+        header.dirlen = LittleLong (header.dirlen);
+
+        numpackfiles = header.dirlen / sizeof(dpackfile_t);
+
+        if (numpackfiles > MAX_FILES_IN_PACK)
+                Sys_Error ("%s has %i files", packfile, numpackfiles);
+
+        if (numpackfiles != PAK0_COUNT)
+                com_modified = true;    // not the original file
+
+        newfiles = Hunk_AllocName (numpackfiles * sizeof(packfile_t), "packfile");
+
+        Sys_FileSeek (packhandle, header.dirofs);
+        Sys_FileRead (packhandle, (void *)info, header.dirlen);
+
+// crc the directory to check for modifications
+        CRC_Init (&crc);
+        for (i=0 ; i<header.dirlen ; i++)
+                CRC_ProcessByte (&crc, ((byte *)info)[i]);
+        if (crc != PAK0_CRC)
+                com_modified = true;
+
+// parse the directory
+        for (i=0 ; i<numpackfiles ; i++)
+        {
+                strcpy (newfiles[i].name, info[i].name);
+                newfiles[i].filepos = LittleLong(info[i].filepos);
+                newfiles[i].filelen = LittleLong(info[i].filelen);
+        }
+
+        pack = Hunk_Alloc (sizeof (pack_t));
+        strcpy (pack->filename, packfile);
+        pack->handle = packhandle;
+        pack->numfiles = numpackfiles;
+        pack->files = newfiles;
+        
+        Con_Printf ("Added packfile %s (%i files)\n", packfile, numpackfiles);
+        return pack;
+}
+
+
+/*
+================
+COM_AddGameDirectory
+
+Sets com_gamedir, adds the directory to the head of the path,
+then loads and adds pak1.pak pak2.pak ... 
+================
+*/
+void COM_AddGameDirectory (char *dir)
+{
+        int                             i;
+        searchpath_t    *search;
+        pack_t                  *pak;
+        char                    pakfile[MAX_OSPATH];
+
+        strcpy (com_gamedir, dir);
+
+//
+// add the directory to the search path
+//
+        search = Hunk_Alloc (sizeof(searchpath_t));
+        strcpy (search->filename, dir);
+        search->next = com_searchpaths;
+        com_searchpaths = search;
+
+//
+// add any pak files in the format pak0.pak pak1.pak, ...
+//
+        for (i=0 ; ; i++)
+        {
+                sprintf (pakfile, "%s/pak%i.pak", dir, i);
+                pak = COM_LoadPackFile (pakfile);
+                if (!pak)
+                        break;
+                search = Hunk_Alloc (sizeof(searchpath_t));
+                search->pack = pak;
+                search->next = com_searchpaths;
+                com_searchpaths = search;               
+        }
+
+//
+// add the contents of the parms.txt file to the end of the command line
+//
+
+}
+
+/*
+================
+COM_InitFilesystem
+================
+*/
+void COM_InitFilesystem (void)
+{
+        int             i, j;
+        char    basedir[MAX_OSPATH];
+        searchpath_t    *search;
+
+//
+// -basedir <path>
+// Overrides the system supplied base directory (under GAMENAME)
+//
+        i = COM_CheckParm ("-basedir");
+        if (i && i < com_argc-1)
+                strcpy (basedir, com_argv[i+1]);
+        else
+                strcpy (basedir, host_parms.basedir);
+
+        j = strlen (basedir);
+
+        if (j > 0)
+        {
+                if ((basedir[j-1] == '\\') || (basedir[j-1] == '/'))
+                        basedir[j-1] = 0;
+        }
+
+//
+// -cachedir <path>
+// Overrides the system supplied cache directory (NULL or /qcache)
+// -cachedir - will disable caching.
+//
+        i = COM_CheckParm ("-cachedir");
+        if (i && i < com_argc-1)
+        {
+                if (com_argv[i+1][0] == '-')
+                        com_cachedir[0] = 0;
+                else
+                        strcpy (com_cachedir, com_argv[i+1]);
+        }
+        else if (host_parms.cachedir)
+                strcpy (com_cachedir, host_parms.cachedir);
+        else
+                com_cachedir[0] = 0;
+
+//
+// start up with GAMENAME by default (id1)
+//
+        COM_AddGameDirectory (va("%s/"GAMENAME, basedir) );
+
+        if (COM_CheckParm ("-rogue"))
+                COM_AddGameDirectory (va("%s/rogue", basedir) );
+        if (COM_CheckParm ("-hipnotic"))
+                COM_AddGameDirectory (va("%s/hipnotic", basedir) );
+
+//
+// -game <gamedir>
+// Adds basedir/gamedir as an override game
+//
+        i = COM_CheckParm ("-game");
+        if (i && i < com_argc-1)
+        {
+                com_modified = true;
+                COM_AddGameDirectory (va("%s/%s", basedir, com_argv[i+1]));
+        }
+
+//
+// -path <dir or packfile> [<dir or packfile>] ...
+// Fully specifies the exact serach path, overriding the generated one
+//
+        i = COM_CheckParm ("-path");
+        if (i)
+        {
+                com_modified = true;
+                com_searchpaths = NULL;
+                while (++i < com_argc)
+                {
+                        if (!com_argv[i] || com_argv[i][0] == '+' || com_argv[i][0] == '-')
+                                break;
+                        
+                        search = Hunk_Alloc (sizeof(searchpath_t));
+                        if ( !strcmp(COM_FileExtension(com_argv[i]), "pak") )
+                        {
+                                search->pack = COM_LoadPackFile (com_argv[i]);
+                                if (!search->pack)
+                                        Sys_Error ("Couldn't load packfile: %s", com_argv[i]);
+                        }
+                        else
+                                strcpy (search->filename, com_argv[i]);
+                        search->next = com_searchpaths;
+                        com_searchpaths = search;
+                }
+        }
+
+        if (COM_CheckParm ("-proghack"))
+                proghack = true;
+}
+
+