]> de.git.xonotic.org Git - xonotic/darkplaces.git/blobdiff - cmd.c
fix a crash
[xonotic/darkplaces.git] / cmd.c
diff --git a/cmd.c b/cmd.c
index b684a0caefd4fb121e969163e8d768d49a834423..a395eed658b9a65d8c95517ed3fb53e0820de83a 100644 (file)
--- a/cmd.c
+++ b/cmd.c
@@ -21,22 +21,13 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
 #include "quakedef.h"
 
-#define        MAX_ALIAS_NAME  32
-// this is the largest script file that can be executed in one step
-// LordHavoc: inreased this from 8192 to 32768
-// div0: increased this from 32k to 128k
-// div0: increased this from 128k to 640k which ought to be enough for anyone
-#define CMDBUFSIZE 655360
-// maximum number of parameters to a command
-#define        MAX_ARGS 80
-// maximum tokenizable commandline length (counting NUL terminations)
-#define CMD_TOKENIZELENGTH (MAX_INPUTLINE + MAX_ARGS)
-
 typedef struct cmdalias_s
 {
        struct cmdalias_s *next;
        char name[MAX_ALIAS_NAME];
        char *value;
+       qboolean initstate; // indicates this command existed at init
+       char *initialvalue; // backup copy of value at init
 } cmdalias_t;
 
 static cmdalias_t *cmd_alias;
@@ -292,7 +283,8 @@ void Cbuf_Execute (void)
        char line[MAX_INPUTLINE];
        char preprocessed[MAX_INPUTLINE];
        char *firstchar;
-       qboolean quotes, comment;
+       qboolean quotes;
+       char *comment;
 
        // LordHavoc: making sure the tokenizebuffer doesn't get filled up by repeated crashes
        cmd_tokenizebufferpos = 0;
@@ -304,7 +296,7 @@ void Cbuf_Execute (void)
                text = (char *)cmd_text.data;
 
                quotes = false;
-               comment = false;
+               comment = NULL;
                for (i=0 ; i < cmd_text.cursize ; i++)
                {
                        if(!comment)
@@ -321,8 +313,8 @@ void Cbuf_Execute (void)
                                }
                                else
                                {
-                                       if(text[i] == '/' && text[i + 1] == '/')
-                                               comment = true;
+                                       if(text[i] == '/' && text[i + 1] == '/' && (i == 0 || ISWHITESPACE(text[i-1])))
+                                               comment = &text[i];
                                        if(text[i] == ';')
                                                break;  // don't break if inside a quoted string or comment
                                }
@@ -340,8 +332,8 @@ void Cbuf_Execute (void)
                }
                else
                {
-                       memcpy (line, text, i);
-                       line[i] = 0;
+                       memcpy (line, text, comment ? (comment - text) : i);
+                       line[comment ? (comment - text) : i] = 0;
                }
 
 // delete the text from the command buffer and move remaining commands down
@@ -358,13 +350,15 @@ void Cbuf_Execute (void)
                }
 
 // execute the command line
-               firstchar = line + strspn(line, " \t");
+               firstchar = line;
+               while(*firstchar && ISWHITESPACE(*firstchar))
+                       ++firstchar;
                if(
-                       (strncmp(firstchar, "alias", 5) || (firstchar[5] != ' ' && firstchar[5] != '\t'))
+                       (strncmp(firstchar, "alias", 5) || !ISWHITESPACE(firstchar[5]))
                        &&
-                       (strncmp(firstchar, "bind", 4) || (firstchar[4] != ' ' && firstchar[4] != '\t'))
+                       (strncmp(firstchar, "bind", 4) || !ISWHITESPACE(firstchar[4]))
                        &&
-                       (strncmp(firstchar, "in_bind", 7) || (firstchar[7] != ' ' && firstchar[7] != '\t'))
+                       (strncmp(firstchar, "in_bind", 7) || !ISWHITESPACE(firstchar[7]))
                )
                {
                        Cmd_PreprocessString( line, preprocessed, sizeof(preprocessed), NULL );
@@ -465,6 +459,7 @@ Cmd_Exec_f
 static void Cmd_Exec_f (void)
 {
        char *f;
+       const char *filename;
 
        if (Cmd_Argc () != 2)
        {
@@ -472,18 +467,26 @@ static void Cmd_Exec_f (void)
                return;
        }
 
-       f = (char *)FS_LoadFile (Cmd_Argv(1), tempmempool, false, NULL);
+       filename = Cmd_Argv(1);
+       if (!strcmp(filename, "config.cfg"))
+       {
+               filename = CONFIGFILENAME;
+               if (COM_CheckParm("-noconfig"))
+                       return; // don't execute config.cfg
+       }
+
+       f = (char *)FS_LoadFile (filename, tempmempool, false, NULL);
        if (!f)
        {
-               Con_Printf("couldn't exec %s\n",Cmd_Argv(1));
+               Con_Printf("couldn't exec %s\n",filename);
                return;
        }
-       Con_Printf("execing %s\n",Cmd_Argv(1));
+       Con_Printf("execing %s\n",filename);
 
        // if executing default.cfg for the first time, lock the cvar defaults
        // it may seem backwards to insert this text BEFORE the default.cfg
        // but Cbuf_InsertText inserts before, so this actually ends up after it.
-       if (!strcmp(Cmd_Argv(1), "default.cfg"))
+       if (strlen(filename) >= 11 && !strcmp(filename + strlen(filename) - 11, "default.cfg"))
                Cbuf_InsertText("\ncvar_lockdefaults\n");
 
        // insert newline after the text to make sure the last line is terminated (some text editors omit the trailing newline)
@@ -491,6 +494,24 @@ static void Cmd_Exec_f (void)
        Cbuf_InsertText ("\n");
        Cbuf_InsertText (f);
        Mem_Free(f);
+
+       // special defaults for specific games go here, these execute before default.cfg
+       // Nehahra pushable crates malfunction in some levels if this is on
+       // Nehahra NPC AI is confused by blowupfallenzombies
+       if (gamemode == GAME_NEHAHRA)
+               Cbuf_InsertText("\nsv_gameplayfix_upwardvelocityclearsongroundflag 0\nsv_gameplayfix_blowupfallenzombies 0\n\n");
+       // hipnotic mission pack has issues in their 'friendly monster' ai, which seem to attempt to attack themselves for some reason when findradius() returns non-solid entities.
+       // hipnotic mission pack has issues with bobbing water entities 'jittering' between different heights on alternate frames at the default 0.0138889 ticrate, 0.02 avoids this issue
+       // hipnotic mission pack has issues in their proximity mine sticking code, which causes them to bounce off.
+       if (gamemode == GAME_HIPNOTIC)
+               Cbuf_InsertText("\nsv_gameplayfix_blowupfallenzombies 0\nsys_ticrate 0.02\nsv_gameplayfix_slidemoveprojectiles 0\n\n");
+       // rogue mission pack has a guardian boss that does not wake up if findradius returns one of the entities around its spawn area
+       if (gamemode == GAME_ROGUE)
+               Cbuf_InsertText("\nsv_gameplayfix_findradiusdistancetobox 0\n\n");
+       if (gamemode == GAME_NEXUIZ)
+               Cbuf_InsertText("\nsv_gameplayfix_q2airaccelerate 1\nsv_gameplayfix_stepmultipletimes 1\n\n");
+       if (gamemode == GAME_TENEBRAE)
+               Cbuf_InsertText("\nr_shadow_gloss 2\nr_shadow_bumpscale_basetexture 4\n\n");
 }
 
 
@@ -651,11 +672,11 @@ static void Cmd_Alias_f (void)
 // copy the rest of the command line
        cmd[0] = 0;             // start out with a null string
        c = Cmd_Argc();
-       for (i=2 ; i< c ; i++)
+       for (i=2 ; i < c ; i++)
        {
-               strlcat (cmd, Cmd_Argv(i), sizeof (cmd));
-               if (i != c)
+               if (i != 2)
                        strlcat (cmd, " ", sizeof (cmd));
+               strlcat (cmd, Cmd_Argv(i), sizeof (cmd));
        }
        strlcat (cmd, "\n", sizeof (cmd));
 
@@ -666,6 +687,49 @@ static void Cmd_Alias_f (void)
        memcpy (a->value, cmd, alloclen);
 }
 
+/*
+===============
+Cmd_UnAlias_f
+
+Remove existing aliases.
+===============
+*/
+static void Cmd_UnAlias_f (void)
+{
+       cmdalias_t      *a, *p;
+       int i;
+       const char *s;
+
+       if(Cmd_Argc() == 1)
+       {
+               Con_Print("unalias: Usage: unalias alias1 [alias2 ...]\n");
+               return;
+       }
+
+       for(i = 1; i < Cmd_Argc(); ++i)
+       {
+               s = Cmd_Argv(i);
+               p = NULL;
+               for(a = cmd_alias; a; p = a, a = a->next)
+               {
+                       if(!strcmp(s, a->name))
+                       {
+                               if (a->initstate) // we can not remove init aliases
+                                       continue;
+                               if(a == cmd_alias)
+                                       cmd_alias = a->next;
+                               if(p)
+                                       p->next = a->next;
+                               Z_Free(a->value);
+                               Z_Free(a);
+                               break;
+                       }
+               }
+               if(!a)
+                       Con_Printf("unalias: %s alias not found\n", s);
+       }
+}
+
 /*
 =============================================================================
 
@@ -682,6 +746,7 @@ typedef struct cmd_function_s
        xcommand_t consolefunction;
        xcommand_t clientfunction;
        qboolean csqcfunc;
+       qboolean initstate; // indicates this command existed at init
 } cmd_function_t;
 
 static int cmd_argc;
@@ -713,6 +778,10 @@ static const char *Cmd_GetDirectCvarValue(const char *varname, cmdalias_t *alias
                                *is_multiple = true;
                        return Cmd_Args();
                }
+               else if(!strcmp(varname, "#"))
+               {
+                       return va("%d", Cmd_Argc());
+               }
                else if(varname[strlen(varname) - 1] == '-')
                {
                        argno = strtol(varname, &endptr, 10);
@@ -755,57 +824,63 @@ static const char *Cmd_GetDirectCvarValue(const char *varname, cmdalias_t *alias
        return NULL;
 }
 
-qboolean Cmd_QuoteString(char *out, size_t outlen, const char *in, const char *quoteset)
+qboolean Cmd_QuoteString(char *out, size_t outlen, const char *in, const char *quoteset, qboolean putquotes)
 {
        qboolean quote_quot = !!strchr(quoteset, '"');
        qboolean quote_backslash = !!strchr(quoteset, '\\');
        qboolean quote_dollar = !!strchr(quoteset, '$');
 
+       if(putquotes)
+       {
+               if(outlen <= 2)
+               {
+                       *out++ = 0;
+                       return false;
+               }
+               *out++ = '"'; --outlen;
+               --outlen;
+       }
+
        while(*in)
        {
                if(*in == '"' && quote_quot)
                {
                        if(outlen <= 2)
-                       {
-                               *out++ = 0;
-                               return false;
-                       }
+                               goto fail;
                        *out++ = '\\'; --outlen;
                        *out++ = '"'; --outlen;
                }
                else if(*in == '\\' && quote_backslash)
                {
                        if(outlen <= 2)
-                       {
-                               *out++ = 0;
-                               return false;
-                       }
+                               goto fail;
                        *out++ = '\\'; --outlen;
                        *out++ = '\\'; --outlen;
                }
                else if(*in == '$' && quote_dollar)
                {
                        if(outlen <= 2)
-                       {
-                               *out++ = 0;
-                               return false;
-                       }
+                               goto fail;
                        *out++ = '$'; --outlen;
                        *out++ = '$'; --outlen;
                }
                else
                {
                        if(outlen <= 1)
-                       {
-                               *out++ = 0;
-                               return false;
-                       }
+                               goto fail;
                        *out++ = *in; --outlen;
                }
                ++in;
        }
+       if(putquotes)
+               *out++ = '"';
        *out++ = 0;
        return true;
+fail:
+       if(putquotes)
+               *out++ = '"';
+       *out++ = 0;
+       return false;
 }
 
 static const char *Cmd_GetCvarValue(const char *var, size_t varlen, cmdalias_t *alias)
@@ -814,6 +889,7 @@ static const char *Cmd_GetCvarValue(const char *var, size_t varlen, cmdalias_t *
        static char varval[MAX_INPUTLINE];
        const char *varstr;
        char *varfunc;
+static char asis[] = "asis"; // just to suppress const char warnings
 
        if(varlen >= MAX_INPUTLINE)
                varlen = MAX_INPUTLINE - 1;
@@ -844,7 +920,7 @@ static const char *Cmd_GetCvarValue(const char *var, size_t varlen, cmdalias_t *
                varstr = Cmd_GetDirectCvarValue(varname, alias, &is_multiple);
                if(is_multiple)
                        if(!varfunc)
-                               varfunc = "asis";
+                               varfunc = asis;
        }
 
        if(!varstr)
@@ -860,7 +936,7 @@ static const char *Cmd_GetCvarValue(const char *var, size_t varlen, cmdalias_t *
        {
                // quote it so it can be used inside double quotes
                // we just need to replace " by \", and of course, double backslashes
-               Cmd_QuoteString(varval, sizeof(varval), varstr, "\"\\");
+               Cmd_QuoteString(varval, sizeof(varval), varstr, "\"\\", false);
                return varval;
        }
        else if(!strcmp(varfunc, "asis"))
@@ -962,7 +1038,7 @@ static void Cmd_PreprocessString( const char *intext, char *outtext, unsigned ma
                                        eat = varlen + 1;
                                }
                        } else {
-                               varlen = strspn(in, "*0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ_-");
+                               varlen = strspn(in, "#*0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ_-");
                                val = Cmd_GetCvarValue(in, varlen, alias);
                                eat = varlen;
                        }
@@ -984,8 +1060,6 @@ static void Cmd_PreprocessString( const char *intext, char *outtext, unsigned ma
                                }
                        }
                }
-               else if( *in == '/' && *(in+1) == '/') // comment line starting
-                       break;
                else 
                        outtext[outlen++] = *in++;
        }
@@ -1010,7 +1084,7 @@ static void Cmd_ExecuteAlias (cmdalias_t *alias)
        // Note: Cbuf_PreprocessString will be called on this string AGAIN! So we
        // have to make sure that no second variable expansion takes place, otherwise
        // alias parameters containing dollar signs can have bad effects.
-       Cmd_QuoteString(buffer2, sizeof(buffer2), buffer, "$");
+       Cmd_QuoteString(buffer2, sizeof(buffer2), buffer, "$", false);
        Cbuf_InsertText( buffer2 );
 }
 
@@ -1070,15 +1144,11 @@ static void Cmd_Apropos_f(void)
        cvar_t *cvar;
        cmdalias_t *alias;
        const char *partial;
-       size_t len;
        int count;
        qboolean ispattern;
 
        if (Cmd_Argc() > 1)
-       {
                partial = Cmd_Args();
-               len = strlen(partial);
-       }
        else
        {
                Con_Printf("usage: apropos <string>\n");
@@ -1087,10 +1157,7 @@ static void Cmd_Apropos_f(void)
 
        ispattern = partial && (strchr(partial, '*') || strchr(partial, '?'));
        if(!ispattern)
-       {
                partial = va("*%s*", partial);
-               len += 2;
-       }
 
        count = 0;
        for (cvar = cvar_vars; cvar; cvar = cvar->next)
@@ -1111,10 +1178,11 @@ static void Cmd_Apropos_f(void)
        }
        for (alias = cmd_alias; alias; alias = alias->next)
        {
+               // procede here a bit differently as an alias value always got a final \n
                if (!matchpattern_with_separator(alias->name, partial, true, "", false))
-               if (!matchpattern_with_separator(alias->value, partial, true, "", false))
+               if (!matchpattern_with_separator(alias->value, partial, true, "\n", false)) // when \n is as separator wildcards don't match it
                        continue;
-               Con_Printf("alias ^5%s^7: %s", alias->name, alias->value);
+               Con_Printf("alias ^5%s^7: %s", alias->name, alias->value); // do not print an extra \n
                count++;
        }
        Con_Printf("%i result%s\n\n", count, (count > 1) ? "s" : "");
@@ -1143,18 +1211,20 @@ void Cmd_Init_Commands (void)
        Cmd_AddCommand ("exec",Cmd_Exec_f, "execute a script file");
        Cmd_AddCommand ("echo",Cmd_Echo_f, "print a message to the console (useful in scripts)");
        Cmd_AddCommand ("alias",Cmd_Alias_f, "create a script function (parameters are passed in as $X (being X a number), $* for all parameters, $X- for all parameters starting from $X). Without arguments show the list of all alias");
+       Cmd_AddCommand ("unalias",Cmd_UnAlias_f, "remove an alias");
        Cmd_AddCommand ("cmd", Cmd_ForwardToServer, "send a console commandline to the server (used by some mods)");
        Cmd_AddCommand ("wait", Cmd_Wait_f, "make script execution wait for next rendered frame");
        Cmd_AddCommand ("set", Cvar_Set_f, "create or change the value of a console variable");
        Cmd_AddCommand ("seta", Cvar_SetA_f, "create or change the value of a console variable that will be saved to config.cfg");
+       Cmd_AddCommand ("unset", Cvar_Del_f, "delete a cvar (does not work for static ones like _cl_name, or read-only ones)");
 #ifdef FILLALLCVARSWITHRUBBISH
        Cmd_AddCommand ("fillallcvarswithrubbish", Cvar_FillAll_f, "fill all cvars with a specified number of characters to provoke buffer overruns");
 #endif /* FILLALLCVARSWITHRUBBISH */
 
        // 2000-01-09 CmdList, CvarList commands By Matthias "Maddes" Buecher
        // Added/Modified by EvilTypeGuy eviltypeguy@qeradiant.com
-       Cmd_AddCommand ("cmdlist", Cmd_List_f, "lists all console commands beginning with the specified prefix");
-       Cmd_AddCommand ("cvarlist", Cvar_List_f, "lists all console variables beginning with the specified prefix");
+       Cmd_AddCommand ("cmdlist", Cmd_List_f, "lists all console commands beginning with the specified prefix or matching the specified wildcard pattern");
+       Cmd_AddCommand ("cvarlist", Cvar_List_f, "lists all console variables beginning with the specified prefix or matching the specified wildcard pattern");
        Cmd_AddCommand ("apropos", Cmd_Apropos_f, "lists all console variables/commands/aliases containing the specified string in the name or description");
 
        Cmd_AddCommand ("cvar_lockdefaults", Cvar_LockDefaults_f, "stores the current values of all cvars into their default values, only used once during startup after parsing default.cfg");
@@ -1600,7 +1670,6 @@ void Cmd_ExecuteString (const char *text, cmd_source_t src)
                                        Con_Printf("Command \"%s\" can not be executed\n", Cmd_Argv(0));
                                found = true;
                                goto command_found;
-                               break;
                        case src_client:
                                if (cmd->clientfunction)
                                {
@@ -1828,3 +1897,61 @@ int Cmd_CheckParm (const char *parm)
        return 0;
 }
 
+
+
+void Cmd_SaveInitState(void)
+{
+       cmd_function_t *f;
+       cmdalias_t *a;
+       for (f = cmd_functions;f;f = f->next)
+               f->initstate = true;
+       for (a = cmd_alias;a;a = a->next)
+       {
+               a->initstate = true;
+               a->initialvalue = Mem_strdup(zonemempool, a->value);
+       }
+       Cvar_SaveInitState();
+}
+
+void Cmd_RestoreInitState(void)
+{
+       cmd_function_t *f, **fp;
+       cmdalias_t *a, **ap;
+       for (fp = &cmd_functions;(f = *fp);)
+       {
+               if (f->initstate)
+                       fp = &f->next;
+               else
+               {
+                       // destroy this command, it didn't exist at init
+                       Con_DPrintf("Cmd_RestoreInitState: Destroying command %s\n", f->name);
+                       *fp = f->next;
+                       Z_Free(f);
+               }
+       }
+       for (ap = &cmd_alias;(a = *ap);)
+       {
+               if (a->initstate)
+               {
+                       // restore this alias, it existed at init
+                       if (strcmp(a->value ? a->value : "", a->initialvalue ? a->initialvalue : ""))
+                       {
+                               Con_DPrintf("Cmd_RestoreInitState: Restoring alias %s\n", a->name);
+                               if (a->value)
+                                       Z_Free(a->value);
+                               a->value = Mem_strdup(zonemempool, a->initialvalue);
+                       }
+                       ap = &a->next;
+               }
+               else
+               {
+                       // free this alias, it didn't exist at init...
+                       Con_DPrintf("Cmd_RestoreInitState: Destroying alias %s\n", a->name);
+                       *ap = a->next;
+                       if (a->value)
+                               Z_Free(a->value);
+                       Z_Free(a);
+               }
+       }
+       Cvar_RestoreInitState();
+}