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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* $URL$
* $Id$
*
*/
#include "common/util.h"
#include "sci/include/sys_strings.h"
#include "sci/include/sci_memory.h"
namespace Sci {
void sys_string_acquire(sys_strings_t *strings, int index, const char *name, int max_len) {
sys_string_t *str = strings->strings + index;
if (index < 0 || index >= SYS_STRINGS_MAX) {
error("[SYSSTR] Error: Attempt to acquire string #%d\n", index);
BREAKPOINT();
}
if (str->name && (strcmp(name, str->name) || (str->max_size != max_len))) {
error("[SYSSTR] Error: Attempt to re-acquire existing string #%d; was '%s', tried to claim as '%s'\n", index, str->name, name);
BREAKPOINT();
}
str->name = strdup(name);
str->max_size = max_len;
str->value = (char*)sci_malloc(max_len + 1);
str->value[0] = 0; // Set to empty string
}
int sys_string_set(sys_strings_t *strings, int index, const char *value) {
sys_string_t *str = strings->strings + index;
if (index < 0 || index >= SYS_STRINGS_MAX || !str->name) {
error("[SYSSTR] Error: Attempt to write to invalid/unused string #%d\n", index);
BREAKPOINT();
return 1;
}
strncpy(str->value, value, str->max_size);
str->value[str->max_size] = 0; // Make sure to terminate
return 0;
}
void sys_string_free(sys_strings_t *strings, int index) {
sys_string_t *str = strings->strings + index;
free(str->name);
str->name = NULL;
free(str->value);
str->value = NULL;
str->max_size = 0;
}
void sys_string_free_all(sys_strings_t *strings) {
int i;
for (i = 0;i < SYS_STRINGS_MAX;i++) {
if (strings->strings[i].name)
sys_string_free(strings, i);
}
}
void sys_strings_restore(sys_strings_t *new_strings, sys_strings_t *old_strings) {
int i;
// First, pad memory
for (i = 0; i < SYS_STRINGS_MAX; i++) {
sys_string_t *s = new_strings->strings + i;
char *data = s->value;
if (data) {
s->value = (char *)sci_malloc(s->max_size + 1);
strcpy(s->value, data);
free(data);
}
}
sys_string_set(new_strings, SYS_STRING_SAVEDIR, old_strings->strings[SYS_STRING_SAVEDIR].value);
}
} // End of namespace Sci
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