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RetroArch/file.c
Themaister 6d1ab7ebfd Revert changes with HAVE_XML. The XML read for memory map are not parsed 
in any way by SSNES and does not depend on libxml2.

Also keep removal of log where XML map is not found (very likely
anyways).
2012-02-16 20:25:25 +01:00

1024 lines
23 KiB
C
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/* SSNES - A Super Nintendo Entertainment System (SNES) Emulator frontend for libsnes.
* Copyright (C) 2010-2012 - Hans-Kristian Arntzen
*
* Some code herein may be based on code found in BSNES.
*
* SSNES 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 Found-
* ation, either version 3 of the License, or (at your option) any later version.
*
* SSNES 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 SSNES.
* If not, see <http://www.gnu.org/licenses/>.
*/
#include "file.h"
#include "general.h"
#include <stdlib.h>
#include "boolean.h"
#include "libsnes.hpp"
#include <string.h>
#include <time.h>
#include "dynamic.h"
#include "movie.h"
#include "ups.h"
#include "bps.h"
#include "strl.h"
#ifdef HAVE_XML
#include "sha256.h"
#endif
#ifdef __CELLOS_LV2__
#include <cell/cell_fs.h>
#endif
#if defined(_WIN32) && !defined(_XBOX)
#include <io.h>
#include <fcntl.h>
#include <windows.h>
#ifdef _MSC_VER
#define setmode _setmode
#endif
#elif defined(_XBOX)
#include <xtl.h>
#define setmode _setmode
#define INVALID_FILE_ATTRIBUTES -1
#else
#include <sys/types.h>
#include <sys/stat.h>
#include <dirent.h>
#endif
// Generic file loader.
ssize_t read_file(const char *path, void **buf)
{
void *rom_buf = NULL;
FILE *file = fopen(path, "rb");
ssize_t rc = 0;
size_t len = 0;
if (!file)
goto error;
fseek(file, 0, SEEK_END);
len = ftell(file);
rewind(file);
rom_buf = malloc(len + 1);
if (!rom_buf)
{
SSNES_ERR("Couldn't allocate memory.\n");
goto error;
}
if ((rc = fread(rom_buf, 1, len, file)) < (ssize_t)len)
SSNES_WARN("Didn't read whole file.\n");
*buf = rom_buf;
// Allow for easy reading of strings to be safe.
// Will only work with sane character formatting (Unix).
((char*)rom_buf)[len] = '\0';
fclose(file);
return rc;
error:
if (file)
fclose(file);
free(rom_buf);
*buf = NULL;
return -1;
}
// Reads file content as one string.
bool read_file_string(const char *path, char **buf)
{
*buf = NULL;
FILE *file = fopen(path, "r");
size_t len = 0;
char *ptr = NULL;
if (!file)
goto error;
fseek(file, 0, SEEK_END);
len = ftell(file) + 2; // Takes account of being able to read in EOF and '\0' at end.
rewind(file);
*buf = (char*)calloc(len, sizeof(char));
if (!*buf)
goto error;
ptr = *buf;
while (ptr && !feof(file))
{
size_t bufsize = (size_t)(((ptrdiff_t)*buf + (ptrdiff_t)len) - (ptrdiff_t)ptr);
fgets(ptr, bufsize, file);
ptr += strlen(ptr);
}
ptr = strchr(ptr, EOF);
if (ptr)
*ptr = '\0';
fclose(file);
return true;
error:
if (file)
fclose(file);
if (*buf)
free(*buf);
return false;
}
enum patch_type
{
PATCH_NONE,
PATCH_UPS,
PATCH_BPS
};
static void patch_rom(uint8_t **buf, ssize_t *size)
{
uint8_t *ret_buf = *buf;
ssize_t ret_size = *size;
ssize_t patch_size = 0;
void *patch_data = NULL;
enum patch_type type = PATCH_NONE;
bool success = false;
if (g_extern.ups_pref && g_extern.bps_pref)
{
SSNES_WARN("Both UPS and BPS patch explicitly defined, ignoring both ...\n");
return;
}
if (!g_extern.bps_pref && *g_extern.ups_name && (patch_size = read_file(g_extern.ups_name, &patch_data)) >= 0)
type = PATCH_UPS;
else if (!g_extern.ups_pref && *g_extern.bps_name && (patch_size = read_file(g_extern.bps_name, &patch_data)) >= 0)
type = PATCH_BPS;
if (type == PATCH_NONE)
{
SSNES_LOG("Did not find a valid ROM patch.\n");
return;
}
switch (type)
{
case PATCH_UPS:
SSNES_LOG("Found UPS file in \"%s\", attempting to patch ...\n", g_extern.ups_name);
break;
case PATCH_BPS:
SSNES_LOG("Found BPS file in \"%s\", attempting to patch ...\n", g_extern.bps_name);
break;
default:
return; // Should not happen, but.
}
size_t target_size = ret_size * 4; // Just to be sure ...
uint8_t *patched_rom = (uint8_t*)malloc(target_size);
if (!patched_rom)
{
SSNES_ERR("Failed to allocate memory for patched ROM ...\n");
goto error;
}
switch (type)
{
case PATCH_UPS:
{
ups_error_t err = ups_apply_patch((const uint8_t*)patch_data, patch_size, ret_buf, ret_size, patched_rom, &target_size);
if (err == UPS_SUCCESS)
{
SSNES_LOG("ROM patched successfully (UPS).\n");
success = true;
}
else
SSNES_ERR("Failed to patch UPS: Error #%u\n", (unsigned)err);
break;
}
case PATCH_BPS:
{
bps_error_t err = bps_apply_patch((const uint8_t*)patch_data, patch_size, ret_buf, ret_size, patched_rom, &target_size);
if (err == BPS_SUCCESS)
{
SSNES_LOG("ROM patched successfully (BPS).\n");
success = true;
}
else
SSNES_ERR("Failed to patch BPS: Error #%u\n", (unsigned)err);
break;
}
default:
return;
}
if (success)
{
free(ret_buf);
*buf = patched_rom;
*size = target_size;
}
if (patch_data)
free(patch_data);
return;
error:
*buf = ret_buf;
*size = ret_size;
if (patch_data)
free(patch_data);
}
// Load SNES rom only. Applies a hack for headered ROMs.
static ssize_t read_rom_file(FILE* file, void** buf)
{
ssize_t ret = 0;
uint8_t *ret_buf = NULL;
if (file == NULL) // stdin
{
#if defined(_WIN32) && !defined(_XBOX)
setmode(0, O_BINARY);
#endif
SSNES_LOG("Reading ROM from stdin ...\n");
size_t buf_size = 0xFFFFF; // Some initial guesstimate.
size_t buf_ptr = 0;
uint8_t *rom_buf = (uint8_t*)malloc(buf_size);
if (rom_buf == NULL)
{
SSNES_ERR("Couldn't allocate memory.\n");
return -1;
}
for (;;)
{
size_t ret = fread(rom_buf + buf_ptr, 1, buf_size - buf_ptr, stdin);
buf_ptr += ret;
// We've reached the end
if (buf_ptr < buf_size)
break;
rom_buf = (uint8_t*)realloc(rom_buf, buf_size * 2);
if (rom_buf == NULL)
{
SSNES_ERR("Couldn't allocate memory.\n");
return -1;
}
buf_size *= 2;
}
ret_buf = rom_buf;
ret = buf_ptr;
}
else
{
fseek(file, 0, SEEK_END);
ret = ftell(file);
rewind(file);
void *rom_buf = malloc(ret);
if (rom_buf == NULL)
{
SSNES_ERR("Couldn't allocate memory.\n");
return -1;
}
if (fread(rom_buf, 1, ret, file) < (size_t)ret)
{
SSNES_ERR("Didn't read whole file.\n");
free(rom_buf);
return -1;
}
ret_buf = (uint8_t*)rom_buf;
}
// Remove copier header if present (512 first bytes).
if ((ret & 0x7fff) == 512)
{
memmove(ret_buf, ret_buf + 512, ret - 512);
ret -= 512;
}
// Attempt to apply a patch :)
patch_rom(&ret_buf, &ret);
g_extern.cart_crc = crc32_calculate(ret_buf, ret);
#ifdef HAVE_XML
sha256_hash(g_extern.sha256, ret_buf, ret);
SSNES_LOG("SHA256 sum: %s\n", g_extern.sha256);
#endif
*buf = ret_buf;
return ret;
}
// Dump stuff to file.
static bool dump_to_file(const char *path, const void *data, size_t size)
{
FILE *file = fopen(path, "wb");
if (!file)
return false;
else
{
bool ret = fwrite(data, 1, size, file) == size;
fclose(file);
return ret;
}
}
static const char *ramtype2str(int type)
{
switch (type)
{
case SNES_MEMORY_CARTRIDGE_RAM:
case SNES_MEMORY_GAME_BOY_RAM:
case SNES_MEMORY_BSX_RAM:
return ".srm";
case SNES_MEMORY_CARTRIDGE_RTC:
case SNES_MEMORY_GAME_BOY_RTC:
return ".rtc";
case SNES_MEMORY_BSX_PRAM:
return ".pram";
case SNES_MEMORY_SUFAMI_TURBO_A_RAM:
return ".aram";
case SNES_MEMORY_SUFAMI_TURBO_B_RAM:
return ".bram";
default:
return "";
}
}
// Attempt to save valuable RAM data somewhere ...
static void dump_to_file_desperate(const void *data, size_t size, int type)
{
#if defined(_WIN32) && !defined(_XBOX)
const char *base = getenv("APPDATA");
#elif defined(__CELLOS_LV2__) || defined(_XBOX)
const char *base = NULL;
#else
const char *base = getenv("HOME");
#endif
if (!base)
goto error;
char path[PATH_MAX];
snprintf(path, sizeof(path), "%s/SSNES-recovery-", base);
char timebuf[PATH_MAX];
time_t time_;
time(&time_);
strftime(timebuf, sizeof(timebuf), "%Y-%m-%d-%H-%M-%S", localtime(&time_));
strlcat(path, timebuf, sizeof(path));
strlcat(path, ramtype2str(type), sizeof(path));
if (dump_to_file(path, data, size))
SSNES_WARN("Succeeded in saving RAM data to \"%s\". Phew ... :D\n", path);
else
goto error;
return;
error:
SSNES_WARN("Failed ... Tough luck ... :(\n");
}
bool save_state(const char *path)
{
SSNES_LOG("Saving state: \"%s\".\n", path);
size_t size = psnes_serialize_size();
if (size == 0)
return false;
void *data = malloc(size);
if (!data)
{
SSNES_ERR("Failed to allocate memory for save state buffer.\n");
return false;
}
SSNES_LOG("State size: %d bytes.\n", (int)size);
bool ret = psnes_serialize((uint8_t*)data, size);
if (ret)
ret = dump_to_file(path, data, size);
if (!ret)
SSNES_ERR("Failed to save state to \"%s\".\n", path);
free(data);
return ret;
}
bool load_state(const char *path)
{
SSNES_LOG("Loading state: \"%s\".\n", path);
void *buf = NULL;
ssize_t size = read_file(path, &buf);
if (size < 0)
{
SSNES_ERR("Failed to load state from \"%s\".\n", path);
return false;
}
bool ret = true;
SSNES_LOG("State size: %d bytes.\n", (int)size);
uint8_t *block_buf[2] = {NULL, NULL};
int block_type[2] = {-1, -1};
unsigned block_size[2] = {0};
if (g_settings.block_sram_overwrite)
{
SSNES_LOG("Blocking SRAM overwrite.\n");
switch (g_extern.game_type)
{
case SSNES_CART_NORMAL:
block_type[0] = SNES_MEMORY_CARTRIDGE_RAM;
block_type[1] = SNES_MEMORY_CARTRIDGE_RTC;
break;
case SSNES_CART_BSX:
case SSNES_CART_BSX_SLOTTED:
block_type[0] = SNES_MEMORY_BSX_RAM;
block_type[1] = SNES_MEMORY_BSX_PRAM;
break;
case SSNES_CART_SUFAMI:
block_type[0] = SNES_MEMORY_SUFAMI_TURBO_A_RAM;
block_type[1] = SNES_MEMORY_SUFAMI_TURBO_B_RAM;
break;
case SSNES_CART_SGB:
block_type[0] = SNES_MEMORY_GAME_BOY_RAM;
block_type[1] = SNES_MEMORY_GAME_BOY_RTC;
break;
}
}
for (unsigned i = 0; i < 2; i++)
if (block_type[i] != -1)
block_size[i] = psnes_get_memory_size(block_type[i]);
for (unsigned i = 0; i < 2; i++)
if (block_size[i])
block_buf[i] = (uint8_t*)malloc(block_size[i]);
// Backup current SRAM which is overwritten by unserialize.
for (unsigned i = 0; i < 2; i++)
{
if (block_buf[i])
{
const uint8_t *ptr = psnes_get_memory_data(block_type[i]);
if (ptr)
memcpy(block_buf[i], ptr, block_size[i]);
}
}
ret = psnes_unserialize((uint8_t*)buf, size);
// Flush back :D
for (unsigned i = 0; i < 2 && ret; i++)
{
if (block_buf[i])
{
uint8_t *ptr = psnes_get_memory_data(block_type[i]);
if (ptr)
memcpy(ptr, block_buf[i], block_size[i]);
}
}
for (unsigned i = 0; i < 2; i++)
if (block_buf[i])
free(block_buf[i]);
free(buf);
return ret;
}
void load_ram_file(const char *path, int type)
{
size_t size = psnes_get_memory_size(type);
uint8_t *data = psnes_get_memory_data(type);
if (size == 0 || !data)
return;
void *buf = NULL;
ssize_t rc = read_file(path, &buf);
if (rc > 0 && rc <= (ssize_t)size)
memcpy(data, buf, rc);
free(buf);
}
void save_ram_file(const char *path, int type)
{
size_t size = psnes_get_memory_size(type);
uint8_t *data = psnes_get_memory_data(type);
if (data && size > 0)
{
if (!dump_to_file(path, data, size))
{
SSNES_ERR("Failed to save SNES RAM.\n");
SSNES_WARN("Attempting to recover ...\n");
dump_to_file_desperate(data, size, type);
}
}
}
static char *load_xml_map(const char *path)
{
char *xml_buf = NULL;
if (*path)
{
if (read_file_string(path, &xml_buf))
SSNES_LOG("Found XML memory map in \"%s\"\n", path);
}
return xml_buf;
}
static bool load_sgb_rom(void)
{
void *rom_buf = NULL;
ssize_t rom_len = 0;
FILE *extra_rom = NULL;
void *extra_rom_buf = NULL;
ssize_t extra_rom_len = 0;
char *xml_buf = 0;
bool ret = true;
if ((rom_len = read_rom_file(g_extern.rom_file, &rom_buf)) == -1)
{
SSNES_ERR("Could not read ROM file.\n");
ret = false;
goto end;
}
if ((extra_rom_len = read_file(g_extern.gb_rom_path, &extra_rom_buf)) == -1)
{
SSNES_ERR("Cannot read GameBoy rom.\n");
ret = false;
goto end;
}
xml_buf = load_xml_map(g_extern.xml_name);
if (!psnes_load_cartridge_super_game_boy(
xml_buf, (const uint8_t*)rom_buf, rom_len,
NULL, (const uint8_t*)extra_rom_buf, extra_rom_len))
{
SSNES_ERR("Cannot load SGB/GameBoy rom.\n");
ret = false;
goto end;
}
if (xml_buf)
free(xml_buf);
end:
if (g_extern.rom_file)
fclose(g_extern.rom_file);
if (extra_rom)
fclose(extra_rom);
free(rom_buf);
free(extra_rom_buf);
return ret;
}
static bool load_bsx_rom(bool slotted)
{
void *rom_buf = NULL;
ssize_t rom_len = 0;
FILE *extra_rom = NULL;
void *extra_rom_buf = NULL;
ssize_t extra_rom_len = 0;
char *xml_buf = 0;
bool ret = true;
if ((rom_len = read_rom_file(g_extern.rom_file, &rom_buf)) == -1)
{
SSNES_ERR("Could not read ROM file.\n");
ret = false;
goto end;
}
if ((extra_rom_len = read_file(g_extern.bsx_rom_path, &extra_rom_buf)) == -1)
{
SSNES_ERR("Cannot read BSX game rom.\n");
ret = false;
goto end;
}
xml_buf = load_xml_map(g_extern.xml_name);
if (slotted)
{
if (!psnes_load_cartridge_bsx_slotted(
xml_buf, (const uint8_t*)rom_buf, rom_len,
NULL, (const uint8_t*)extra_rom_buf, extra_rom_len))
{
SSNES_ERR("Cannot load BSX slotted rom.\n");
ret = false;
goto end;
}
}
else
{
if (!psnes_load_cartridge_bsx(
NULL, (const uint8_t*)rom_buf, rom_len,
NULL, (const uint8_t*)extra_rom_buf, extra_rom_len))
{
SSNES_ERR("Cannot load BSX rom.\n");
ret = false;
goto end;
}
}
if (xml_buf)
free(xml_buf);
end:
if (g_extern.rom_file)
fclose(g_extern.rom_file);
if (extra_rom)
fclose(extra_rom);
free(rom_buf);
free(extra_rom_buf);
return ret;
}
static bool load_sufami_rom(void)
{
void *rom_buf = NULL;
ssize_t rom_len = 0;
FILE *extra_rom[2] = {NULL};
void *extra_rom_buf[2] = {NULL};
ssize_t extra_rom_len[2] = {0};
char *xml_buf = 0;
const char *roms[2] = {0};
bool ret = true;
if ((rom_len = read_rom_file(g_extern.rom_file, &rom_buf)) == -1)
{
SSNES_ERR("Could not read ROM file.\n");
ret = false;
goto end;
}
roms[0] = g_extern.sufami_rom_path[0];
roms[1] = g_extern.sufami_rom_path[1];
for (unsigned i = 0; i < 2; i++)
{
if (*(roms[i]))
{
if ((extra_rom_len[i] = read_file(roms[i], &extra_rom_buf[i])) == -1)
{
SSNES_ERR("Cannot read Sufami game rom.\n");
ret = false;
goto end;
}
}
}
xml_buf = load_xml_map(g_extern.xml_name);
if (!psnes_load_cartridge_sufami_turbo(
xml_buf, (const uint8_t*)rom_buf, rom_len,
NULL, (const uint8_t*)extra_rom_buf[0], extra_rom_len[0],
NULL, (const uint8_t*)extra_rom_buf[1], extra_rom_len[1]))
{
SSNES_ERR("Cannot load Sufami Turbo rom.\n");
ret = false;
goto end;
}
if (xml_buf)
free(xml_buf);
end:
if (g_extern.rom_file)
fclose(g_extern.rom_file);
for (unsigned i = 0; i < 2; i++)
{
if (extra_rom[i])
fclose(extra_rom[i]);
free(extra_rom_buf[i]);
}
free(rom_buf);
return ret;
}
static bool load_normal_rom(void)
{
void *rom_buf = NULL;
ssize_t rom_len = 0;
if (!g_extern.system.need_fullpath)
{
if ((rom_len = read_rom_file(g_extern.rom_file, &rom_buf)) == -1)
{
SSNES_ERR("Could not read ROM file.\n");
return false;
}
if (g_extern.rom_file)
fclose(g_extern.rom_file);
SSNES_LOG("ROM size: %d bytes\n", (int)rom_len);
}
else
{
if (!g_extern.rom_file)
{
SSNES_ERR("Implementation requires a full path to be set, cannot load ROM from stdin. Aborting ...\n");
return false;
}
fclose(g_extern.rom_file);
SSNES_LOG("ROM loading skipped. Implementation will load it on its own.\n");
}
char *xml_buf = load_xml_map(g_extern.xml_name);
if (!psnes_load_cartridge_normal(xml_buf, (const uint8_t*)rom_buf, rom_len))
{
SSNES_ERR("ROM file is not valid.\n");
free(rom_buf);
free(xml_buf);
return false;
}
free(xml_buf);
free(rom_buf);
return true;
}
bool init_rom_file(enum ssnes_game_type type)
{
switch (type)
{
case SSNES_CART_SGB:
if (!load_sgb_rom())
return false;
break;
case SSNES_CART_NORMAL:
if (!load_normal_rom())
return false;
break;
case SSNES_CART_BSX:
if (!load_bsx_rom(false))
return false;
break;
case SSNES_CART_BSX_SLOTTED:
if (!load_bsx_rom(true))
return false;
break;
case SSNES_CART_SUFAMI:
if (!load_sufami_rom())
return false;
break;
default:
SSNES_ERR("Invalid ROM type.\n");
return false;
}
return true;
}
// Yep, this is C alright ;)
char **dir_list_new(const char *dir, const char *ext)
{
size_t cur_ptr = 0;
size_t cur_size = 32;
char **dir_list = NULL;
#ifdef _WIN32
WIN32_FIND_DATA ffd;
HANDLE hFind = INVALID_HANDLE_VALUE;
char path_buf[PATH_MAX];
if (strlcpy(path_buf, dir, sizeof(path_buf)) >= sizeof(path_buf))
goto error;
if (strlcat(path_buf, "/*", sizeof(path_buf)) >= sizeof(path_buf))
goto error;
if (ext)
{
if (strlcat(path_buf, ext, sizeof(path_buf)) >= sizeof(path_buf))
goto error;
}
hFind = FindFirstFile(path_buf, &ffd);
if (hFind == INVALID_HANDLE_VALUE)
goto error;
#else
DIR *directory = NULL;
const struct dirent *entry = NULL;
directory = opendir(dir);
if (!directory)
goto error;
#endif
dir_list = (char**)calloc(cur_size, sizeof(char*));
if (!dir_list)
goto error;
#ifdef _WIN32 // Hard to read? Blame non-POSIX heathens!
do
#else
while ((entry = readdir(directory)))
#endif
{
// Not a perfect search of course, but hopefully good enough in practice.
#ifdef _WIN32
if (ffd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
continue;
if (ext && !strstr(ffd.cFileName, ext))
continue;
#else
if (ext && !strstr(entry->d_name, ext))
continue;
#endif
dir_list[cur_ptr] = (char*)malloc(PATH_MAX);
if (!dir_list[cur_ptr])
goto error;
strlcpy(dir_list[cur_ptr], dir, PATH_MAX);
strlcat(dir_list[cur_ptr], "/", PATH_MAX);
#ifdef _WIN32
strlcat(dir_list[cur_ptr], ffd.cFileName, PATH_MAX);
#else
strlcat(dir_list[cur_ptr], entry->d_name, PATH_MAX);
#endif
cur_ptr++;
if (cur_ptr + 1 == cur_size) // Need to reserve for NULL.
{
cur_size *= 2;
dir_list = (char**)realloc(dir_list, cur_size * sizeof(char*));
if (!dir_list)
goto error;
// Make sure it's all NULL'd out since we cannot rely on realloc to do this.
memset(dir_list + cur_ptr, 0, (cur_size - cur_ptr) * sizeof(char*));
}
}
#if defined(_WIN32)
while (FindNextFile(hFind, &ffd) != 0);
#endif
#ifdef _WIN32
FindClose(hFind);
#else
closedir(directory);
#endif
return dir_list;
error:
SSNES_ERR("Failed to open directory: \"%s\"\n", dir);
#ifdef _WIN32
if (hFind != INVALID_HANDLE_VALUE)
FindClose(hFind);
#else
if (directory)
closedir(directory);
#endif
dir_list_free(dir_list);
return NULL;
}
void dir_list_free(char **dir_list)
{
if (!dir_list)
return;
char **orig = dir_list;
while (*dir_list)
free(*dir_list++);
free(orig);
}
bool path_is_directory(const char *path)
{
#ifdef _WIN32
DWORD ret = GetFileAttributes(path);
return (ret & FILE_ATTRIBUTE_DIRECTORY) && (ret != INVALID_FILE_ATTRIBUTES);
#elif defined(__CELLOS_LV2__)
CellFsStat buf;
if (cellFsStat(path, &buf) < 0)
return false;
return buf.st_mode & CELL_FS_S_IFDIR;
#elif defined(XENON)
// Dummy
(void)path;
return false;
#else
struct stat buf;
if (stat(path, &buf) < 0)
return false;
return S_ISDIR(buf.st_mode);
#endif
}
bool path_file_exists(const char *path)
{
FILE *dummy = fopen(path, "rb");
if (dummy)
{
fclose(dummy);
return true;
}
return false;
}
void fill_pathname(char *out_path, const char *in_path, const char *replace, size_t size)
{
char tmp_path[PATH_MAX];
ssnes_assert(strlcpy(tmp_path, in_path, sizeof(tmp_path)) < sizeof(tmp_path));
char *tok = strrchr(tmp_path, '.');
if (tok)
*tok = '\0';
ssnes_assert(strlcpy(out_path, tmp_path, size) < size);
ssnes_assert(strlcat(out_path, replace, size) < size);
}
void fill_pathname_noext(char *out_path, const char *in_path, const char *replace, size_t size)
{
ssnes_assert(strlcpy(out_path, in_path, size) < size);
ssnes_assert(strlcat(out_path, replace, size) < size);
}
void fill_pathname_dir(char *in_dir, const char *in_basename, const char *replace, size_t size)
{
ssnes_assert(strlcat(in_dir, "/", size) < size);
const char *base = strrchr(in_basename, '/');
if (!base)
base = strrchr(in_basename, '\\');
if (base)
base++;
else
base = in_basename;
ssnes_assert(strlcat(in_dir, base, size) < size);
ssnes_assert(strlcat(in_dir, replace, size) < size);
}
void fill_pathname_base(char *out_dir, const char *in_path, size_t size)
{
const char *ptr = strrchr(in_path, '/');
if (!ptr)
ptr = strrchr(in_path, '\\');
if (ptr)
ptr++;
else
ptr = in_path;
ssnes_assert(strlcpy(out_dir, ptr, size) < size);
}
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