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/*(LGPL)
---------------------------------------------------------------------------
e_script.c - EEL source code management
---------------------------------------------------------------------------
* Copyright (C) 2002, David Olofson
* Copyright (C) 2002, Florian Schulze <fs@crowproductions.de>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 2.1 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "config.h"
#include "_e_script.h"
#include "e_util.h"
#define DBG(x)
/*----------------------------------------------------------
Script source management
----------------------------------------------------------*/
script_t eel_scripttab[MAX_SCRIPTS];
int eel_script_alloc()
{
int h = 0;
while(h < MAX_SCRIPTS)
{
if(!eel_scripttab[h].data)
return h;
++h;
}
return -1;
}
int eel_load(const char *filename)
{
FILE *f;
int h = eel_script_alloc();
if(h < 0)
return h;
/* Construct full name with path */
eel_scripttab[h].name = malloc(strlen(filename) +
strlen(eel_path()) + 2);
if(!eel_scripttab[h].name)
return -1;
strcpy(eel_scripttab[h].name, eel_path());
#ifdef WIN32
strcat(eel_scripttab[h].name, "\\");
#elif defined MACOS
strcat(eel_scripttab[h].name, ":");
#else
strcat(eel_scripttab[h].name, "/");
#endif
strcat(eel_scripttab[h].name, filename);
f = fopen(eel_scripttab[h].name, "rb");
if(!f)
return -1;
if(fseek(f, 0, SEEK_END) == 0)
{
eel_scripttab[h].len = ftell(f);
if(fseek(f, 0, SEEK_SET) == 0)
{
eel_scripttab[h].data = (unsigned char *)malloc(
eel_scripttab[h].len + 1);
if(eel_scripttab[h].data)
{
if(fread(eel_scripttab[h].data,
eel_scripttab[h].len,
1, f) == 1)
{
fclose(f);
DBG(log_printf(DLOG, "Loaded script \"%s\"."
" (Handle %d)\n",
eel_scripttab[h].name,
h);)
return h;
}
DBG(printf("eel_load(): Read error!\n");)
eel_free(h);
}
DBG(printf("eel_load(): Memory allocation error!\n");)
}
DBG(printf("eel_load(): Rewind error!\n");)
}
DBG(printf("eel_load(): Seek-to-end error!\n");)
fclose(f);
return -2;
}
int eel_load_from_mem(const char *script, unsigned len)
{
char name_buffer[128];
int h = eel_script_alloc();
if(h < 0)
return h;
/* Construct name */
snprintf(name_buffer, 127, "mem_script (%p, %u)", script, len);
name_buffer[127] = '\0';
eel_scripttab[h].name = (char *)malloc(strlen(name_buffer) + 1);
if(!eel_scripttab[h].name)
return -1;
strcpy(eel_scripttab[h].name, name_buffer);
eel_scripttab[h].len = len;
eel_scripttab[h].data =
(unsigned char *)malloc(eel_scripttab[h].len + 1);
if(!eel_scripttab[h].data)
{
DBG(printf("eel_load_from_mem(): Memory allocation error!\n");)
return -2;
}
memcpy(eel_scripttab[h].data, script, len);
DBG(printf("Loaded script \"%s\" (Handle %d)\n",
eel_scripttab[h].name, h);)
return h;
}
void eel_free(int handle)
{
if(handle < 0)
return;
if(handle > MAX_SCRIPTS)
return;
if(!eel_scripttab[handle].data)
return;
DBG(printf("Freeing script \"%s\". (Handle %d)\n",
eel_scripttab[handle].name, handle);)
free(eel_scripttab[handle].data);
eel_scripttab[handle].data = NULL;
free(eel_scripttab[handle].name);
eel_scripttab[handle].name = NULL;
eel_scripttab[handle].len = 0;
}
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