Remove bsnes XML cheat code - rework this into something more generic

This commit is contained in:
twinaphex 2014-12-15 21:03:00 +01:00
parent 199cbda252
commit 46f8713165
2 changed files with 1 additions and 293 deletions

289
cheats.c
View File

@ -27,100 +27,6 @@
#include <stddef.h> #include <stddef.h>
#include <string.h> #include <string.h>
#ifdef HAVE_LIBXML2
#include <libxml/parser.h>
#include <libxml/tree.h>
#else
#define RXML_LIBXML2_COMPAT
#include "compat/rxml/rxml.h"
#endif
static char *strcat_alloc(char *dest, const char *input)
{
size_t dest_len = dest ? strlen(dest) : 0;
size_t input_len = strlen(input);
size_t required_len = dest_len + input_len + 1;
char *output = (char*)realloc(dest, required_len);
if (!output)
return NULL;
if (dest)
strlcat(output, input, required_len);
else
strlcpy(output, input, required_len);
return output;
}
static bool xml_grab_cheat(struct item_cheat *cht, xmlNodePtr ptr)
{
bool first;
if (!ptr)
return false;
memset(cht, 0, sizeof(struct item_cheat));
first = true;
for (; ptr; ptr = ptr->next)
{
if (strcmp((const char*)ptr->name, "description") == 0)
cht->desc = (char*)xmlNodeGetContent(ptr);
else if (strcmp((const char*)ptr->name, "code") == 0)
{
xmlChar *code;
if (!first)
{
cht->code = strcat_alloc(cht->code, "+");
if (!cht->code)
return false;
}
code = (xmlChar*)xmlNodeGetContent(ptr);
if (!code)
return false;
cht->code = strcat_alloc(cht->code, (const char*)code);
xmlFree(code);
if (!cht->code)
return false;
first = false;
}
}
return true;
}
static bool xml_grab_cheats(cheat_manager_t *handle, xmlNodePtr ptr)
{
for (; ptr; ptr = ptr->next)
{
if (strcmp((const char*)ptr->name, "name") == 0)
{
xmlChar *name = (xmlChar*)xmlNodeGetContent(ptr);
if (name)
{
RARCH_LOG("Found cheat for game: \"%s\"\n", name);
xmlFree(name);
}
}
else if (strcmp((const char*)ptr->name, "cheat") == 0)
{
if (handle->size == handle->buf_size)
{
if (!cheat_manager_realloc(handle, handle->buf_size * 2))
return false;
}
if (xml_grab_cheat(&handle->cheats[handle->size], ptr->children))
handle->size++;
}
}
return true;
}
void cheat_manager_apply_cheats(cheat_manager_t *handle) void cheat_manager_apply_cheats(cheat_manager_t *handle)
{ {
unsigned i; unsigned i;
@ -134,85 +40,6 @@ void cheat_manager_apply_cheats(cheat_manager_t *handle)
} }
} }
static void cheat_manager_load_config(cheat_manager_t *handle,
const char *path, const char *sha256)
{
const char *num;
char *str, *save;
config_file_t *conf;
if (!(*path))
return;
conf = (config_file_t*)config_file_new(path);
if (!conf)
return;
str = NULL;
if (!config_get_string(conf, sha256, &str))
{
config_file_free(conf);
return;
}
save = NULL;
num = (const char*)strtok_r(str, ";", &save);
while (num)
{
unsigned idx = strtoul(num, NULL, 0);
if (idx < handle->size)
handle->cheats[idx].state = true;
num = strtok_r(NULL, ";", &save);
}
free(str);
config_file_free(conf);
cheat_manager_apply_cheats(handle);
}
static void cheat_manager_save_config(cheat_manager_t *handle,
const char *path, const char *sha256)
{
unsigned i;
char conf_str[512] = {0};
char tmp[32] = {0};
if (!(*path))
return;
config_file_t *conf = config_file_new(path);
if (!conf)
conf = config_file_new(NULL);
if (!conf)
{
RARCH_ERR("Cannot save XML cheat settings.\n");
return;
}
for (i = 0; i < handle->size; i++)
{
if (handle->cheats[i].state)
{
snprintf(tmp, sizeof(tmp), "%u;", i);
strlcat(conf_str, tmp, sizeof(conf_str));
}
}
if (*conf_str)
conf_str[strlen(conf_str) - 1] = '\0'; /* Remove the trailing ';' */
config_set_string(conf, sha256, conf_str);
if (!config_file_write(conf, path))
RARCH_ERR("Failed to write XML cheat settings to \"%s\". Check permissions.\n", path);
config_file_free(conf);
}
cheat_manager_t *cheat_manager_new(void) cheat_manager_t *cheat_manager_new(void)
{ {
unsigned i; unsigned i;
@ -274,118 +101,6 @@ bool cheat_manager_realloc(cheat_manager_t *handle, unsigned new_size)
return true; return true;
} }
cheat_manager_t *cheat_manager_new_from_xml(const char *path)
{
xmlParserCtxtPtr ctx;
xmlNodePtr head, cur;
xmlDocPtr doc;
cheat_manager_t *handle;
LIBXML_TEST_VERSION;
pretro_cheat_reset();
ctx = NULL;
doc = NULL;
handle = (cheat_manager_t*)calloc(1, sizeof(struct cheat_manager));
if (!handle)
return NULL;
head = NULL;
cur = NULL;
handle->buf_size = 1;
handle->cheats = (struct item_cheat*)
calloc(handle->buf_size, sizeof(struct item_cheat));
if (!handle->cheats)
{
handle->buf_size = 0;
goto error;
}
ctx = xmlNewParserCtxt();
if (!ctx)
goto error;
doc = xmlCtxtReadFile(ctx, path, NULL, 0);
if (!doc)
{
RARCH_ERR("Failed to parse XML file: %s\n", path);
goto error;
}
#ifdef HAVE_LIBXML2
if (ctx->valid == 0)
{
RARCH_ERR("Cannot validate XML file: %s\n", path);
goto error;
}
#endif
head = xmlDocGetRootElement(doc);
for (cur = head; cur; cur = cur->next)
{
if (cur->type == XML_ELEMENT_NODE
&& strcmp((const char*)cur->name, "database") == 0)
break;
}
if (!cur)
goto error;
for (cur = cur->children; cur; cur = cur->next)
{
if (cur->type != XML_ELEMENT_NODE)
continue;
if (strcmp((const char*)cur->name, "cartridge") == 0)
{
xmlChar *sha256 = xmlGetProp(cur, (const xmlChar*)"sha256");
if (!sha256)
continue;
if (*g_extern.sha256 && strcmp((const char*)sha256,
g_extern.sha256) == 0)
{
xmlFree(sha256);
break;
}
xmlFree(sha256);
}
}
if (!cur)
goto error;
if (!xml_grab_cheats(handle, cur->children))
{
RARCH_ERR("Failed to grab cheats. This should not happen.\n");
goto error;
}
if (handle->size == 0)
{
RARCH_ERR("Did not find any cheats in XML file: %s\n", path);
goto error;
}
cheat_manager_load_config(handle,
g_settings.cheat_settings_path, g_extern.sha256);
xmlFreeDoc(doc);
xmlFreeParserCtxt(ctx);
return handle;
error:
cheat_manager_free(handle);
if (doc)
xmlFreeDoc(doc);
if (ctx)
xmlFreeParserCtxt(ctx);
return NULL;
}
void cheat_manager_free(cheat_manager_t *handle) void cheat_manager_free(cheat_manager_t *handle)
{ {
unsigned i; unsigned i;
@ -394,11 +109,9 @@ void cheat_manager_free(cheat_manager_t *handle)
if (handle->cheats) if (handle->cheats)
{ {
cheat_manager_save_config(handle,
g_settings.cheat_settings_path, g_extern.sha256);
for (i = 0; i < handle->size; i++) for (i = 0; i < handle->size; i++)
{ {
xmlFree(handle->cheats[i].desc); free(handle->cheats[i].desc);
free(handle->cheats[i].code); free(handle->cheats[i].code);
} }

View File

@ -1116,11 +1116,6 @@ static void init_cheats(void)
if (!allow_cheats) if (!allow_cheats)
return; return;
#if 0
if (*g_settings.cheat_database)
g_extern.cheat = cheat_manager_new_from_xml(g_settings.cheat_database);
#endif
} }
static void init_rewind(void) static void init_rewind(void)