300 lines
6.5 KiB
C
300 lines
6.5 KiB
C
/*
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bi_file.c
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CSQC file builtins
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Copyright (C) 1996-1997 Id Software, Inc.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to:
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Free Software Foundation, Inc.
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59 Temple Place - Suite 330
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Boston, MA 02111-1307, USA
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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static __attribute__ ((unused)) const char rcsid[] =
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"$Id$";
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#include <stdlib.h>
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#ifdef HAVE_STRING_H
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# include <string.h>
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#endif
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#ifdef HAVE_STRINGS_H
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# include <strings.h>
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#endif
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#include "QF/csqc.h"
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#include "QF/progs.h"
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#include "QF/quakefs.h"
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#include "QF/va.h"
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#include "QF/zone.h"
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static void
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bi_qfile_clear (progs_t *pr, void *data)
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{
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qfile_resources_t *res = (qfile_resources_t *) data;
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int i;
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for (i = 0; i < QFILE_MAX_HANDLES; i++)
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if (res->handles[i]) {
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Qclose (res->handles[i]);
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res->handles[i] = 0;
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}
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}
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QFile **
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QFile_AllocHandle (struct progs_s *pr, qfile_resources_t *res)
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{
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int h;
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for (h = 0; h < QFILE_MAX_HANDLES && res->handles[h]; h++)
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;
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if (h == QFILE_MAX_HANDLES)
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goto error;
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res->handles[h] = (QFile *) 1;
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return res->handles + h;
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error:
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return 0;
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}
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static void
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secured (progs_t *pr)
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{
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PR_RunError (pr, "Secured function called");
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}
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static void
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bi_Qrename (progs_t *pr)
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{
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const char *old = P_GSTRING (pr, 0);
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const char *new = P_GSTRING (pr, 1);
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R_INT (pr) = Qrename (old, new);
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}
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static void
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bi_Qremove (progs_t *pr)
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{
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const char *path = P_GSTRING (pr, 0);
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R_INT (pr) = Qremove (path);
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}
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static void
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bi_Qopen (progs_t *pr)
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{
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qfile_resources_t *res = PR_Resources_Find (pr, "QFile");
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const char *path = P_GSTRING (pr, 0);
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const char *mode = P_GSTRING (pr, 1);
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QFile **h = QFile_AllocHandle (pr, res);
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if (!h) {
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R_INT (pr) = 0;
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return;
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}
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*h = Qopen (path, mode);
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R_INT (pr) = (h - res->handles) + 1;
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}
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static QFile **
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get_qfile (progs_t *pr, int handle, const char *func)
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{
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qfile_resources_t *res = PR_Resources_Find (pr, "QFile");
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if (handle < 1 || handle > QFILE_MAX_HANDLES || !res->handles[handle - 1])
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PR_RunError (pr, "%s: Invalid QFile", func);
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return res->handles + handle - 1;
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}
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static void
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bi_Qclose (progs_t *pr)
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{
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int handle = P_INT (pr, 0);
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QFile **h = get_qfile (pr, handle, "Qclose");
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Qclose (*h);
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*h = 0;
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}
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static void
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bi_Qgetline (progs_t *pr)
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{
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int handle = P_INT (pr, 0);
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QFile **h = get_qfile (pr, handle, "Qgetline");
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const char *s;
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s = Qgetline (*h);
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if (s)
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RETURN_STRING (pr, s);
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else
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R_STRING (pr) = 0;
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}
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static void
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check_buffer (progs_t *pr, pr_type_t *buf, int count, const char *name)
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{
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int len;
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len = (count + sizeof (pr_type_t) - 1) / sizeof (pr_type_t);
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if (buf < pr->pr_globals || buf + len > pr->pr_globals + pr->globals_size)
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PR_RunError (pr, "%s: bad buffer", name);
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}
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static void
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bi_Qread (progs_t *pr)
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{
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int handle = P_INT (pr, 0);
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QFile **h = get_qfile (pr, handle, "Qread");
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pr_type_t *buf = P_GPOINTER (pr, 1);
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int count = P_INT (pr, 2);
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check_buffer (pr, buf, count, "Qread");
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R_INT (pr) = Qread (*h, buf, count);
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}
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static void
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bi_Qwrite (progs_t *pr)
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{
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int handle = P_INT (pr, 0);
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QFile **h = get_qfile (pr, handle, "Qwrite");
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pr_type_t *buf = P_GPOINTER (pr, 1);
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int count = P_INT (pr, 2);
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check_buffer (pr, buf, count, "Qwrite");
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R_INT (pr) = Qwrite (*h, buf, count);
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}
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static void
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bi_Qputs (progs_t *pr)
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{
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int handle = P_INT (pr, 0);
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QFile **h = get_qfile (pr, handle, "Qputs");
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const char *str = P_GSTRING (pr, 1);
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R_INT (pr) = Qputs (*h, str);
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}
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#if 0
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static void
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bi_Qgets (progs_t *pr)
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{
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int handle = P_INT (pr, 0);
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QFile **h = get_qfile (pr, handle, "Qgets");
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pr_type_t *buf = P_GPOINTER (pr, 1);
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int count = P_INT (pr, 2);
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check_buffer (pr, buf, count, "Qgets");
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R_INT (pr) = POINTER_TO_PROG (pr, Qgets (*h, (char *) buf, count));
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}
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#endif
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static void
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bi_Qgetc (progs_t *pr)
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{
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int handle = P_INT (pr, 0);
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QFile **h = get_qfile (pr, handle, "Qgetc");
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R_INT (pr) = Qgetc (*h);
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}
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static void
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bi_Qputc (progs_t *pr)
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{
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int handle = P_INT (pr, 0);
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QFile **h = get_qfile (pr, handle, "Qputc");
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int c = P_INT (pr, 1);
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R_INT (pr) = Qputc (*h, c);
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}
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static void
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bi_Qseek (progs_t *pr)
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{
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int handle = P_INT (pr, 0);
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QFile **h = get_qfile (pr, handle, "Qseek");
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int offset = P_INT (pr, 1);
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int whence = P_INT (pr, 2);
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R_INT (pr) = Qseek (*h, offset, whence);
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}
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static void
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bi_Qtell (progs_t *pr)
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{
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int handle = P_INT (pr, 0);
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QFile **h = get_qfile (pr, handle, "Qtell");
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R_INT (pr) = Qtell (*h);
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}
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static void
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bi_Qflush (progs_t *pr)
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{
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int handle = P_INT (pr, 0);
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QFile **h = get_qfile (pr, handle, "Qflush");
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R_INT (pr) = Qflush (*h);
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}
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static void
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bi_Qeof (progs_t *pr)
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{
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int handle = P_INT (pr, 0);
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QFile **h = get_qfile (pr, handle, "Qeof");
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R_INT (pr) = Qeof (*h);
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}
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static void
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bi_Qfilesize (progs_t *pr)
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{
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int handle = P_INT (pr, 0);
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QFile **h = get_qfile (pr, handle, "Qfilesize");
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R_INT (pr) = Qfilesize (*h);
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}
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void
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QFile_Progs_Init (progs_t *pr, int secure)
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{
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qfile_resources_t *res = calloc (sizeof (qfile_resources_t), 1);
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PR_Resources_Register (pr, "QFile", res, bi_qfile_clear);
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if (secure) {
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PR_AddBuiltin (pr, "Qrename", secured, -1);
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PR_AddBuiltin (pr, "Qremove", secured, -1);
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PR_AddBuiltin (pr, "Qopen", secured, -1);
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} else {
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PR_AddBuiltin (pr, "Qrename", bi_Qrename, -1);
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PR_AddBuiltin (pr, "Qremove", bi_Qremove, -1);
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PR_AddBuiltin (pr, "Qopen", bi_Qopen, -1);
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}
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PR_AddBuiltin (pr, "Qclose", bi_Qclose, -1);
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PR_AddBuiltin (pr, "Qgetline", bi_Qgetline, -1);
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PR_AddBuiltin (pr, "Qread", bi_Qread, -1);
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PR_AddBuiltin (pr, "Qwrite", bi_Qwrite, -1);
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PR_AddBuiltin (pr, "Qputs", bi_Qputs, -1);
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// PR_AddBuiltin (pr, "Qgets", bi_Qgets, -1);
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PR_AddBuiltin (pr, "Qgetc", bi_Qgetc, -1);
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PR_AddBuiltin (pr, "Qputc", bi_Qputc, -1);
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PR_AddBuiltin (pr, "Qseek", bi_Qseek, -1);
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PR_AddBuiltin (pr, "Qtell", bi_Qtell, -1);
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PR_AddBuiltin (pr, "Qflush", bi_Qflush, -1);
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PR_AddBuiltin (pr, "Qeof", bi_Qeof, -1);
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PR_AddBuiltin (pr, "Qfilesize", bi_Qfilesize, -1);
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}
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