CTCaer/RetroArch
1
0
Fork 0
mirror of https://github.com/CTCaer/RetroArch.git synced 2024-12-21 02:08:16 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity
f085056d8a
RetroArch/file_path.c
Higor Eurípedes ebeec0d056 (Haiku) Fix fill_pathname_application_path()
2014-08-28 13:45:12 -03:00

913 lines
21 KiB
C
Raw Blame History

/* RetroArch - A frontend for libretro.
* Copyright (C) 2010-2014 - Hans-Kristian Arntzen
*
* RetroArch 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.
*
* RetroArch 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 RetroArch.
* If not, see <http://www.gnu.org/licenses/>.
*/
#include "file_path.h"
#include <stdlib.h>
#include "boolean.h"
#include <string.h>
#include <time.h>
#include <errno.h>
#include "compat/strl.h"
#include "compat/posix_string.h"
#include "miscellaneous.h"
#ifdef __HAIKU__
#include <kernel/image.h>
#endif
#if (defined(__CELLOS_LV2__) && !defined(__PSL1GHT__)) || defined(__QNX__) || defined(PSP)
#include <unistd.h> //stat() is defined here
#endif
#if defined(__CELLOS_LV2__)
#ifndef S_ISDIR
#define S_ISDIR(x) (x & 0040000)
#endif
#endif
#if defined(_WIN32)
#ifdef _MSC_VER
#define setmode _setmode
#endif
#include "msvc/msvc_compat.h"
#ifdef _XBOX
#include <xtl.h>
#define INVALID_FILE_ATTRIBUTES -1
#else
#include <io.h>
#include <fcntl.h>
#include <direct.h>
#include <windows.h>
#endif
#else
#include <sys/types.h>
#include <sys/stat.h>
#include <dirent.h>
#include <unistd.h>
#endif
// Dump stuff to file.
bool write_file(const char *path, const void *data, size_t size)
{
bool ret = false;
FILE *file = fopen(path, "wb");
if (!file)
return false;
ret = fwrite(data, 1, size, file) == size;
fclose(file);
return ret;
}
// Generic file loader.
long read_file(const char *path, void **buf)
{
long rc = 0, len = 0;
void *rom_buf = NULL;
FILE *file = fopen(path, "rb");
if (!file)
goto error;
fseek(file, 0, SEEK_END);
len = ftell(file);
rewind(file);
rom_buf = malloc(len + 1);
if (!rom_buf)
{
RARCH_ERR("Couldn't allocate memory.\n");
goto error;
}
if ((rc = fread(rom_buf, 1, len, file)) < len)
RARCH_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");
long len = 0;
char *ptr = NULL;
if (!file)
goto error;
// ftell with "r" can be troublesome ...
// Haven't run into issues yet though.
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;
}
void string_list_free(struct string_list *list)
{
size_t i;
if (!list)
return;
for (i = 0; i < list->size; i++)
free(list->elems[i].data);
free(list->elems);
free(list);
}
static bool string_list_capacity(struct string_list *list, size_t cap)
{
rarch_assert(cap > list->size);
struct string_list_elem *new_data = (struct string_list_elem*)
realloc(list->elems, cap * sizeof(*new_data));
if (!new_data)
return false;
list->elems = new_data;
list->cap = cap;
return true;
}
struct string_list *string_list_new(void)
{
struct string_list *list = (struct string_list*)calloc(1, sizeof(*list));
if (!list)
return NULL;
if (!string_list_capacity(list, 32))
{
string_list_free(list);
return NULL;
}
return list;
}
bool string_list_append(struct string_list *list, const char *elem, union string_list_elem_attr attr)
{
if (list->size >= list->cap &&
!string_list_capacity(list, list->cap * 2))
return false;
char *dup = strdup(elem);
if (!dup)
return false;
list->elems[list->size].data = dup;
list->elems[list->size].attr = attr;
list->size++;
return true;
}
void string_list_set(struct string_list *list, unsigned index, const char *str)
{
free(list->elems[index].data);
rarch_assert(list->elems[index].data = strdup(str));
}
void string_list_join_concat(char *buffer, size_t size, const struct string_list *list, const char *sep)
{
size_t len = strlen(buffer);
rarch_assert(len < size);
buffer += len;
size -= len;
size_t i;
for (i = 0; i < list->size; i++)
{
strlcat(buffer, list->elems[i].data, size);
if ((i + 1) < list->size)
strlcat(buffer, sep, size);
}
}
struct string_list *string_split(const char *str, const char *delim)
{
char *copy = NULL;
const char *tmp = NULL;
struct string_list *list = string_list_new();
if (!list)
goto error;
copy = strdup(str);
if (!copy)
goto error;
char *save;
tmp = strtok_r(copy, delim, &save);
while (tmp)
{
union string_list_elem_attr attr;
memset(&attr, 0, sizeof(attr));
if (!string_list_append(list, tmp, attr))
goto error;
tmp = strtok_r(NULL, delim, &save);
}
free(copy);
return list;
error:
string_list_free(list);
free(copy);
return NULL;
}
bool string_list_find_elem(const struct string_list *list, const char *elem)
{
size_t i;
if (!list)
return false;
for (i = 0; i < list->size; i++)
{
if (strcasecmp(list->elems[i].data, elem) == 0)
return true;
}
return false;
}
bool string_list_find_elem_prefix(const struct string_list *list, const char *prefix, const char *elem)
{
size_t i;
if (!list)
return false;
char prefixed[PATH_MAX];
snprintf(prefixed, sizeof(prefixed), "%s%s", prefix, elem);
for (i = 0; i < list->size; i++)
{
if (strcasecmp(list->elems[i].data, elem) == 0 ||
strcasecmp(list->elems[i].data, prefixed) == 0)
return true;
}
return false;
}
const char *path_get_extension(const char *path)
{
const char *ext = strrchr(path_basename(path), '.');
if (ext)
return ext + 1;
return "";
}
char *path_remove_extension(char *path)
{
char *last = (char*)strrchr(path_basename(path), '.');
if (*last)
*last = '\0';
return last;
}
static int qstrcmp_plain(const void *a_, const void *b_)
{
const struct string_list_elem *a = (const struct string_list_elem*)a_;
const struct string_list_elem *b = (const struct string_list_elem*)b_;
return strcasecmp(a->data, b->data);
}
static int qstrcmp_dir(const void *a_, const void *b_)
{
const struct string_list_elem *a = (const struct string_list_elem*)a_;
const struct string_list_elem *b = (const struct string_list_elem*)b_;
int a_dir = a->attr.b;
int b_dir = b->attr.b;
// Sort directories before files.
if (a_dir != b_dir)
return b_dir - a_dir;
return strcasecmp(a->data, b->data);
}
void dir_list_sort(struct string_list *list, bool dir_first)
{
if (!list)
return;
qsort(list->elems, list->size, sizeof(struct string_list_elem),
dir_first ? qstrcmp_dir : qstrcmp_plain);
}
#ifdef _WIN32 // Because the API is just fucked up ...
struct string_list *dir_list_new(const char *dir, const char *ext, bool include_dirs)
{
struct string_list *list = string_list_new();
if (!list)
return NULL;
HANDLE hFind = INVALID_HANDLE_VALUE;
WIN32_FIND_DATA ffd;
char path_buf[PATH_MAX];
snprintf(path_buf, sizeof(path_buf), "%s\\*", dir);
struct string_list *ext_list = NULL;
if (ext)
ext_list = string_split(ext, "|");
hFind = FindFirstFile(path_buf, &ffd);
if (hFind == INVALID_HANDLE_VALUE)
goto error;
do
{
union string_list_elem_attr attr;
char file_path[PATH_MAX];
const char *name = ffd.cFileName;
const char *file_ext = path_get_extension(name);
bool is_dir = ffd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY;
if (!include_dirs && is_dir)
continue;
if (strcmp(name, ".") == 0 || strcmp(name, "..") == 0)
continue;
if (!is_dir && ext_list && !string_list_find_elem_prefix(ext_list, ".", file_ext))
continue;
fill_pathname_join(file_path, dir, name, sizeof(file_path));
attr.b = is_dir;
if (!string_list_append(list, file_path, attr))
goto error;
}
while (FindNextFile(hFind, &ffd) != 0);
FindClose(hFind);
string_list_free(ext_list);
return list;
error:
RARCH_ERR("Failed to open directory: \"%s\"\n", dir);
if (hFind != INVALID_HANDLE_VALUE)
FindClose(hFind);
string_list_free(list);
string_list_free(ext_list);
return NULL;
}
#else
static bool dirent_is_directory(const char *path, const struct dirent *entry)
{
#if defined(PSP)
return (entry->d_stat.st_attr & FIO_SO_IFDIR) == FIO_SO_IFDIR;
#elif defined(DT_DIR)
if (entry->d_type == DT_DIR)
return true;
else if (entry->d_type == DT_UNKNOWN // This can happen on certain file systems.
|| entry->d_type == DT_LNK)
return path_is_directory(path);
return false;
#else // dirent struct doesn't have d_type, do it the slow way ...
return path_is_directory(path);
#endif
}
struct string_list *dir_list_new(const char *dir, const char *ext, bool include_dirs)
{
DIR *directory = NULL;
const struct dirent *entry = NULL;
struct string_list *ext_list = NULL;
struct string_list *list = (struct string_list*)string_list_new();
if (!list)
return NULL;
if (ext)
ext_list = string_split(ext, "|");
directory = opendir(dir);
if (!directory)
goto error;
while ((entry = readdir(directory)))
{
bool is_dir;
char file_path[PATH_MAX];
union string_list_elem_attr attr;
const char *name = entry->d_name;
const char *file_ext = path_get_extension(name);
fill_pathname_join(file_path, dir, name, sizeof(file_path));
is_dir = dirent_is_directory(file_path, entry);
if (!include_dirs && is_dir)
continue;
if (strcmp(name, ".") == 0 || strcmp(name, "..") == 0)
continue;
if (!is_dir && ext_list && !string_list_find_elem_prefix(ext_list, ".", file_ext))
continue;
attr.b = is_dir;
if (!string_list_append(list, file_path, attr))
goto error;
}
closedir(directory);
string_list_free(ext_list);
return list;
error:
RARCH_ERR("Failed to open directory: \"%s\"\n", dir);
if (directory)
closedir(directory);
string_list_free(list);
string_list_free(ext_list);
return NULL;
}
#endif
void dir_list_free(struct string_list *list)
{
string_list_free(list);
}
static bool path_char_is_slash(char c)
{
#ifdef _WIN32
return (c == '/') || (c == '\\');
#else
return (c == '/');
#endif
}
static const char *path_default_slash(void)
{
#ifdef _WIN32
return "\\";
#else
return "/";
#endif
}
bool path_is_directory(const char *path)
{
#ifdef _WIN32
DWORD ret = GetFileAttributes(path);
return (ret & FILE_ATTRIBUTE_DIRECTORY) && (ret != INVALID_FILE_ATTRIBUTES);
#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];
char *tok;
rarch_assert(strlcpy(tmp_path, in_path, sizeof(tmp_path)) < sizeof(tmp_path));
if ((tok = (char*)strrchr(path_basename(tmp_path), '.')))
*tok = '\0';
rarch_assert(strlcpy(out_path, tmp_path, size) < size);
rarch_assert(strlcat(out_path, replace, size) < size);
}
void fill_pathname_noext(char *out_path, const char *in_path, const char *replace, size_t size)
{
rarch_assert(strlcpy(out_path, in_path, size) < size);
rarch_assert(strlcat(out_path, replace, size) < size);
}
static char *find_last_slash(const char *str)
{
const char *slash = strrchr(str, '/');
#ifdef _WIN32
const char *backslash = strrchr(str, '\\');
if (backslash && ((slash && backslash > slash) || !slash))
slash = backslash;
#endif
return (char*)slash;
}
// Assumes path is a directory. Appends a slash
// if not already there.
void fill_pathname_slash(char *path, size_t size)
{
size_t path_len = strlen(path);
const char *last_slash = find_last_slash(path);
// Try to preserve slash type.
if (last_slash && (last_slash != (path + path_len - 1)))
{
char join_str[2] = {*last_slash};
rarch_assert(strlcat(path, join_str, size) < size);
}
else if (!last_slash)
rarch_assert(strlcat(path, path_default_slash(), size) < size);
}
void fill_pathname_dir(char *in_dir, const char *in_basename, const char *replace, size_t size)
{
fill_pathname_slash(in_dir, size);
const char *base = path_basename(in_basename);
rarch_assert(strlcat(in_dir, base, size) < size);
rarch_assert(strlcat(in_dir, replace, size) < size);
}
void fill_pathname_base(char *out, const char *in_path, size_t size)
{
const char *ptr = find_last_slash(in_path);
if (ptr)
ptr++;
else
ptr = in_path;
rarch_assert(strlcpy(out, ptr, size) < size);
}
void fill_pathname_basedir(char *out_dir, const char *in_path, size_t size)
{
rarch_assert(strlcpy(out_dir, in_path, size) < size);
path_basedir(out_dir);
}
void fill_pathname_parent_dir(char *out_dir, const char *in_dir, size_t size)
{
rarch_assert(strlcpy(out_dir, in_dir, size) < size);
path_parent_dir(out_dir);
}
void fill_dated_filename(char *out_filename, const char *ext, size_t size)
{
time_t cur_time;
time(&cur_time);
strftime(out_filename, size, "RetroArch-%m%d-%H%M%S.", localtime(&cur_time));
strlcat(out_filename, ext, size);
}
void path_basedir(char *path)
{
if (strlen(path) < 2)
return;
char *last = find_last_slash(path);
if (last)
last[1] = '\0';
else
snprintf(path, 3, ".%s", path_default_slash());
}
void path_parent_dir(char *path)
{
size_t len = strlen(path);
if (len && path_char_is_slash(path[len - 1]))
path[len - 1] = '\0';
path_basedir(path);
}
const char *path_basename(const char *path)
{
const char *last = find_last_slash(path);
if (last)
return last + 1;
return path;
}
bool path_is_absolute(const char *path)
{
#ifdef _WIN32
// Many roads lead to Rome ...
return path[0] == '/' || (strstr(path, "\\\\") == path) || strstr(path, ":/") || strstr(path, ":\\") || strstr(path, ":\\\\");
#else
return path[0] == '/';
#endif
}
void path_resolve_realpath(char *buf, size_t size)
{
#ifndef RARCH_CONSOLE
char tmp[PATH_MAX];
strlcpy(tmp, buf, sizeof(tmp));
#ifdef _WIN32
if (!_fullpath(buf, tmp, size))
strlcpy(buf, tmp, size);
#else
rarch_assert(size >= PATH_MAX);
// NOTE: realpath() expects at least PATH_MAX bytes in buf.
// Technically, PATH_MAX needn't be defined, but we rely on it anyways.
// POSIX 2008 can automatically allocate for you, but don't rely on that.
if (!realpath(tmp, buf))
strlcpy(buf, tmp, size);
#endif
#else
(void)buf;
(void)size;
#endif
}
static bool path_mkdir_norecurse(const char *dir)
{
int ret;
#if defined(_WIN32)
ret = _mkdir(dir);
#elif defined(IOS)
ret = mkdir(dir, 0755);
#else
ret = mkdir(dir, 0750);
#endif
if (ret < 0 && errno == EEXIST && path_is_directory(dir)) // Don't treat this as an error.
ret = 0;
if (ret < 0)
RARCH_ERR("mkdir(%s) error: %s.\n", dir, strerror(errno));
return ret == 0;
}
bool path_mkdir(const char *dir)
{
const char *target = NULL;
char *basedir = strdup(dir); // Use heap. Real chance of stack overflow if we recurse too hard.
bool ret = true;
if (!basedir)
return false;
path_parent_dir(basedir);
if (!*basedir || !strcmp(basedir, dir))
{
ret = false;
goto end;
}
if (path_is_directory(basedir))
{
target = dir;
ret = path_mkdir_norecurse(dir);
}
else
{
target = basedir;
ret = path_mkdir(basedir);
if (ret)
{
target = dir;
ret = path_mkdir_norecurse(dir);
}
}
end:
if (target && !ret)
RARCH_ERR("Failed to create directory: \"%s\".\n", target);
free(basedir);
return ret;
}
void fill_pathname_resolve_relative(char *out_path, const char *in_refpath, const char *in_path, size_t size)
{
if (path_is_absolute(in_path))
rarch_assert(strlcpy(out_path, in_path, size) < size);
else
{
rarch_assert(strlcpy(out_path, in_refpath, size) < size);
path_basedir(out_path);
rarch_assert(strlcat(out_path, in_path, size) < size);
}
}
void fill_pathname_join(char *out_path, const char *dir, const char *path, size_t size)
{
rarch_assert(strlcpy(out_path, dir, size) < size);
if (*out_path)
fill_pathname_slash(out_path, size);
rarch_assert(strlcat(out_path, path, size) < size);
}
void fill_pathname_expand_special(char *out_path, const char *in_path, size_t size)
{
#if !defined(RARCH_CONSOLE)
if (*in_path == '~')
{
const char *home = getenv("HOME");
if (home)
{
size_t src_size = strlcpy(out_path, home, size);
rarch_assert(src_size < size);
out_path += src_size;
size -= src_size;
in_path++;
}
}
else if ((in_path[0] == ':') &&
#ifdef _WIN32
((in_path[1] == '/') || (in_path[1] == '\\')))
#else
(in_path[1] == '/'))
#endif
{
char application_dir[PATH_MAX];
fill_pathname_application_path(application_dir, sizeof(application_dir));
path_basedir(application_dir);
size_t src_size = strlcpy(out_path, application_dir, size);
rarch_assert(src_size < size);
out_path += src_size;
size -= src_size;
in_path += 2;
}
#endif
rarch_assert(strlcpy(out_path, in_path, size) < size);
}
void fill_pathname_abbreviate_special(char *out_path, const char *in_path, size_t size)
{
#if !defined(RARCH_CONSOLE)
unsigned i;
const char *home = getenv("HOME");
char application_dir[PATH_MAX];
fill_pathname_application_path(application_dir, sizeof(application_dir));
path_basedir(application_dir);
// application_dir could be zero-string. Safeguard against this.
// Keep application dir in front of home, moving app dir to a new location inside
// home would break otherwise.
const char *candidates[3] = { application_dir, home, NULL };
const char *notations[3] = { ":", "~", NULL };
for (i = 0; candidates[i]; i++)
{
if (*candidates[i] && strstr(in_path, candidates[i]) == in_path)
{
size_t src_size = strlcpy(out_path, notations[i], size);
rarch_assert(src_size < size);
out_path += src_size;
size -= src_size;
in_path += strlen(candidates[i]);
if (!path_char_is_slash(*in_path))
{
rarch_assert(strlcpy(out_path, path_default_slash(), size) < size);
out_path++;
size--;
}
break; // Don't allow more abbrevs to take place.
}
}
#endif
rarch_assert(strlcpy(out_path, in_path, size) < size);
}
#ifndef RARCH_CONSOLE
void fill_pathname_application_path(char *buf, size_t size)
{
size_t i;
(void)i;
if (!size)
return;
#ifdef _WIN32
DWORD ret = GetModuleFileName(GetModuleHandle(NULL), buf, size - 1);
buf[ret] = '\0';
#elif defined(__APPLE__)
CFBundleRef bundle = CFBundleGetMainBundle();
if (bundle)
{
CFURLRef bundle_url = CFBundleCopyBundleURL(bundle);
CFStringRef bundle_path = CFURLCopyPath(bundle_url);
CFStringGetCString(bundle_path, buf, size, kCFStringEncodingUTF8);
CFRelease(bundle_path);
CFRelease(bundle_url);
rarch_assert(strlcat(buf, "nobin", size) < size);
return;
}
#elif defined(__HAIKU__)
image_info info;
int32 cookie = 0;
while (get_next_image_info(0, &cookie, &info) == B_OK)
{
if (info.type == B_APP_IMAGE)
{
strlcpy(buf, info.name, size);
return;
}
}
#else
*buf = '\0';
pid_t pid = getpid();
char link_path[PATH_MAX];
static const char *exts[] = { "exe", "file", "path/a.out" }; // Linux, BSD and Solaris paths. Not standardized.
for (i = 0; i < ARRAY_SIZE(exts); i++)
{
snprintf(link_path, sizeof(link_path), "/proc/%u/%s", (unsigned)pid, exts[i]);
ssize_t ret = readlink(link_path, buf, size - 1);
if (ret >= 0)
{
buf[ret] = '\0';
return;
}
}
RARCH_ERR("Cannot resolve application path! This should not happen.\n");
#endif
}
#endif
Reference in New Issue View Git Blame Copy Permalink