1392 lines
36 KiB
C
1392 lines
36 KiB
C
/* Copyright (C) 2010-2020 The RetroArch team
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*
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* ---------------------------------------------------------------------------------------
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* The following license statement only applies to this file (file_path.c).
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* ---------------------------------------------------------------------------------------
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*
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* Permission is hereby granted, free of charge,
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* to any person obtaining a copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation the rights to
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* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software,
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* and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
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* INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <time.h>
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#include <errno.h>
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#include <sys/stat.h>
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#include <boolean.h>
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#include <file/file_path.h>
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#include <retro_assert.h>
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#include <retro_miscellaneous.h>
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#include <string/stdstring.h>
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#include <time/rtime.h>
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/* TODO: There are probably some unnecessary things on this huge include list now but I'm too afraid to touch it */
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#ifdef __APPLE__
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#include <CoreFoundation/CoreFoundation.h>
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#endif
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#ifdef __HAIKU__
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#include <kernel/image.h>
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#endif
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#ifndef __MACH__
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#include <compat/strl.h>
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#include <compat/posix_string.h>
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#endif
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#include <retro_miscellaneous.h>
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#include <encodings/utf.h>
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#ifdef _WIN32
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#include <direct.h>
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#else
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#include <unistd.h> /* stat() is defined here */
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#endif
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#if !defined(RARCH_CONSOLE) && defined(RARCH_INTERNAL)
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#ifdef __WINRT__
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#include <uwp/uwp_func.h>
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#endif
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#endif
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/* Assume W-functions do not work below Win2K and Xbox platforms */
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#if defined(_WIN32_WINNT) && _WIN32_WINNT < 0x0500 || defined(_XBOX)
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#ifndef LEGACY_WIN32
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#define LEGACY_WIN32
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#endif
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#endif
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/**
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* path_get_archive_delim:
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* @path : path
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*
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* Find delimiter of an archive file. Only the first '#'
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* after a compression extension is considered.
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*
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* Returns: pointer to the delimiter in the path if it contains
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* a path inside a compressed file, otherwise NULL.
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*/
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const char *path_get_archive_delim(const char *path)
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{
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const char *last_slash = find_last_slash(path);
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const char *delim = NULL;
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char buf[5];
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buf[0] = '\0';
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/* We search for delimiters after the last slash
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* in the file path to avoid capturing delimiter
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* characters in any parent directory names.
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* If there are no slashes in the file name, then
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* the path is just the file basename - in this
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* case we search the path in its entirety */
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if (!last_slash)
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last_slash = path;
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/* Find delimiter position
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* > Since filenames may contain '#' characters,
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* must loop until we find the first '#' that
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* is directly *after* a compression extension */
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delim = strchr(last_slash, '#');
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while (delim)
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{
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/* Check whether this is a known archive type
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* > Note: The code duplication here is
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* deliberate, to maximise performance */
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if (delim - last_slash > 4)
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{
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strlcpy(buf, delim - 4, sizeof(buf));
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buf[4] = '\0';
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string_to_lower(buf);
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/* Check if this is a '.zip', '.apk' or '.7z' file */
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if (string_is_equal(buf, ".zip") ||
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string_is_equal(buf, ".apk") ||
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string_is_equal(buf + 1, ".7z"))
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return delim;
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}
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else if (delim - last_slash > 3)
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{
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strlcpy(buf, delim - 3, sizeof(buf));
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buf[3] = '\0';
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string_to_lower(buf);
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/* Check if this is a '.7z' file */
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if (string_is_equal(buf, ".7z"))
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return delim;
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}
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delim++;
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delim = strchr(delim, '#');
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}
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return NULL;
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}
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/**
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* path_get_extension:
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* @path : path
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*
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* Gets extension of file. Only '.'s
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* after the last slash are considered.
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*
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* Returns: extension part from the path.
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*/
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const char *path_get_extension(const char *path)
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{
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const char *ext;
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if (!string_is_empty(path) && ((ext = strrchr(path_basename(path), '.'))))
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return ext + 1;
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return "";
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}
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/**
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* path_remove_extension:
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* @path : path
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*
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* Mutates path by removing its extension. Removes all
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* text after and including the last '.'.
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* Only '.'s after the last slash are considered.
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*
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* Returns:
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* 1) If path has an extension, returns path with the
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* extension removed.
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* 2) If there is no extension, returns NULL.
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* 3) If path is empty or NULL, returns NULL
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*/
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char *path_remove_extension(char *path)
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{
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char *last = !string_is_empty(path)
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? (char*)strrchr(path_basename(path), '.') : NULL;
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if (!last)
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return NULL;
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if (*last)
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*last = '\0';
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return path;
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}
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/**
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* path_is_compressed_file:
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* @path : path
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*
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* Checks if path is a compressed file.
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*
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* Returns: true (1) if path is a compressed file, otherwise false (0).
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**/
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bool path_is_compressed_file(const char* path)
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{
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const char *ext = path_get_extension(path);
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if (!string_is_empty(ext))
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if ( string_is_equal_noncase(ext, "zip") ||
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string_is_equal_noncase(ext, "apk") ||
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string_is_equal_noncase(ext, "7z"))
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return true;
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return false;
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}
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/**
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* fill_pathname:
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* @out_path : output path
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* @in_path : input path
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* @replace : what to replace
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* @size : buffer size of output path
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*
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* FIXME: Verify
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*
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* Replaces filename extension with 'replace' and outputs result to out_path.
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* The extension here is considered to be the string from the last '.'
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* to the end.
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*
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* Only '.'s after the last slash are considered as extensions.
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* If no '.' is present, in_path and replace will simply be concatenated.
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* 'size' is buffer size of 'out_path'.
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* E.g.: in_path = "/foo/bar/baz/boo.c", replace = ".asm" =>
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* out_path = "/foo/bar/baz/boo.asm"
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* E.g.: in_path = "/foo/bar/baz/boo.c", replace = "" =>
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* out_path = "/foo/bar/baz/boo"
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*/
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void fill_pathname(char *out_path, const char *in_path,
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const char *replace, size_t size)
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{
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char tmp_path[PATH_MAX_LENGTH];
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char *tok = NULL;
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tmp_path[0] = '\0';
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strlcpy(tmp_path, in_path, sizeof(tmp_path));
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if ((tok = (char*)strrchr(path_basename(tmp_path), '.')))
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*tok = '\0';
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fill_pathname_noext(out_path, tmp_path, replace, size);
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}
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/**
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* fill_pathname_noext:
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* @out_path : output path
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* @in_path : input path
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* @replace : what to replace
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* @size : buffer size of output path
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*
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* Appends a filename extension 'replace' to 'in_path', and outputs
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* result in 'out_path'.
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*
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* Assumes in_path has no extension. If an extension is still
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* present in 'in_path', it will be ignored.
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*
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*/
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size_t fill_pathname_noext(char *out_path, const char *in_path,
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const char *replace, size_t size)
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{
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strlcpy(out_path, in_path, size);
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return strlcat(out_path, replace, size);
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}
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char *find_last_slash(const char *str)
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{
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const char *slash = strrchr(str, '/');
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#ifdef _WIN32
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const char *backslash = strrchr(str, '\\');
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if (!slash || (backslash > slash))
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return (char*)backslash;
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#endif
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return (char*)slash;
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}
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/**
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* fill_pathname_slash:
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* @path : path
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* @size : size of path
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*
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* Assumes path is a directory. Appends a slash
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* if not already there.
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**/
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void fill_pathname_slash(char *path, size_t size)
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{
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size_t path_len;
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const char *last_slash = find_last_slash(path);
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if (!last_slash)
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{
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strlcat(path, PATH_DEFAULT_SLASH(), size);
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return;
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}
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path_len = strlen(path);
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/* Try to preserve slash type. */
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if (last_slash != (path + path_len - 1))
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{
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path[path_len] = last_slash[0];
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path[path_len+1] = '\0';
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}
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}
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/**
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* fill_pathname_dir:
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* @in_dir : input directory path
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* @in_basename : input basename to be appended to @in_dir
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* @replace : replacement to be appended to @in_basename
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* @size : size of buffer
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*
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* Appends basename of 'in_basename', to 'in_dir', along with 'replace'.
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* Basename of in_basename is the string after the last '/' or '\\',
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* i.e the filename without directories.
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*
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* If in_basename has no '/' or '\\', the whole 'in_basename' will be used.
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* 'size' is buffer size of 'in_dir'.
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*
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* E.g..: in_dir = "/tmp/some_dir", in_basename = "/some_content/foo.c",
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* replace = ".asm" => in_dir = "/tmp/some_dir/foo.c.asm"
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**/
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size_t fill_pathname_dir(char *in_dir, const char *in_basename,
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const char *replace, size_t size)
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{
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const char *base = NULL;
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fill_pathname_slash(in_dir, size);
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base = path_basename(in_basename);
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strlcat(in_dir, base, size);
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return strlcat(in_dir, replace, size);
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}
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/**
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* fill_pathname_base:
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* @out : output path
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* @in_path : input path
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* @size : size of output path
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*
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* Copies basename of @in_path into @out_path.
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**/
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size_t fill_pathname_base(char *out, const char *in_path, size_t size)
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{
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const char *ptr = path_basename(in_path);
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if (!ptr)
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ptr = in_path;
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return strlcpy(out, ptr, size);
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}
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void fill_pathname_base_noext(char *out,
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const char *in_path, size_t size)
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{
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fill_pathname_base(out, in_path, size);
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path_remove_extension(out);
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}
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size_t fill_pathname_base_ext(char *out,
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const char *in_path, const char *ext,
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size_t size)
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{
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fill_pathname_base_noext(out, in_path, size);
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return strlcat(out, ext, size);
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}
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/**
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* fill_pathname_basedir:
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* @out_dir : output directory
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* @in_path : input path
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* @size : size of output directory
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*
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* Copies base directory of @in_path into @out_path.
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* If in_path is a path without any slashes (relative current directory),
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* @out_path will get path "./".
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**/
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void fill_pathname_basedir(char *out_dir,
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const char *in_path, size_t size)
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{
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if (out_dir != in_path)
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strlcpy(out_dir, in_path, size);
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path_basedir(out_dir);
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}
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void fill_pathname_basedir_noext(char *out_dir,
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const char *in_path, size_t size)
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{
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fill_pathname_basedir(out_dir, in_path, size);
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path_remove_extension(out_dir);
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}
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/**
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* fill_pathname_parent_dir_name:
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* @out_dir : output directory
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* @in_dir : input directory
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* @size : size of output directory
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*
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* Copies only the parent directory name of @in_dir into @out_dir.
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* The two buffers must not overlap. Removes trailing '/'.
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* Returns true on success, false if a slash was not found in the path.
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**/
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bool fill_pathname_parent_dir_name(char *out_dir,
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const char *in_dir, size_t size)
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{
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bool success = false;
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char *temp = strdup(in_dir);
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char *last = find_last_slash(temp);
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if (last && last[1] == 0)
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{
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*last = '\0';
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last = find_last_slash(temp);
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}
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/* Cut the last part of the string (the filename) after the slash,
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leaving the directory name (or nested directory names) only. */
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if (last)
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*last = '\0';
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/* Point in_dir to the address of the last slash. */
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in_dir = find_last_slash(temp);
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/* If find_last_slash returns NULL, it means there was no slash in temp,
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so use temp as-is. */
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if (!in_dir)
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in_dir = temp;
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success = in_dir && in_dir[1];
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if (success)
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{
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/* If path starts with an slash, eliminate it. */
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if (path_is_absolute(in_dir))
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strlcpy(out_dir, in_dir + 1, size);
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else
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strlcpy(out_dir, in_dir, size);
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}
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free(temp);
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return success;
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}
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/**
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* fill_pathname_parent_dir:
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* @out_dir : output directory
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* @in_dir : input directory
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* @size : size of output directory
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*
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* Copies parent directory of @in_dir into @out_dir.
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* Assumes @in_dir is a directory. Keeps trailing '/'.
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* If the path was already at the root directory, @out_dir will be an empty string.
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**/
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void fill_pathname_parent_dir(char *out_dir,
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const char *in_dir, size_t size)
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{
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if (out_dir != in_dir)
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strlcpy(out_dir, in_dir, size);
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path_parent_dir(out_dir);
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}
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/**
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* fill_dated_filename:
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* @out_filename : output filename
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* @ext : extension of output filename
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* @size : buffer size of output filename
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*
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* Creates a 'dated' filename prefixed by 'RetroArch', and
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* concatenates extension (@ext) to it.
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*
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* E.g.:
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* out_filename = "RetroArch-{month}{day}-{Hours}{Minutes}.{@ext}"
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**/
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size_t fill_dated_filename(char *out_filename,
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const char *ext, size_t size)
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{
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time_t cur_time = time(NULL);
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struct tm tm_;
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rtime_localtime(&cur_time, &tm_);
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strftime(out_filename, size,
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"RetroArch-%m%d-%H%M%S", &tm_);
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return strlcat(out_filename, ext, size);
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}
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|
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/**
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|
* fill_str_dated_filename:
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* @out_filename : output filename
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|
* @in_str : input string
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|
* @ext : extension of output filename
|
|
* @size : buffer size of output filename
|
|
*
|
|
* Creates a 'dated' filename prefixed by the string @in_str, and
|
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* concatenates extension (@ext) to it.
|
|
*
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|
* E.g.:
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* out_filename = "RetroArch-{year}{month}{day}-{Hour}{Minute}{Second}.{@ext}"
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**/
|
|
void fill_str_dated_filename(char *out_filename,
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const char *in_str, const char *ext, size_t size)
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|
{
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char format[256];
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struct tm tm_;
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time_t cur_time = time(NULL);
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format[0] = '\0';
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rtime_localtime(&cur_time, &tm_);
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if (string_is_empty(ext))
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{
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strftime(format, sizeof(format), "-%y%m%d-%H%M%S", &tm_);
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fill_pathname_noext(out_filename, in_str, format, size);
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}
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else
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{
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strftime(format, sizeof(format), "-%y%m%d-%H%M%S.", &tm_);
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|
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fill_pathname_join_concat_noext(out_filename,
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in_str, format, ext,
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size);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* path_basedir:
|
|
* @path : path
|
|
*
|
|
* Extracts base directory by mutating path.
|
|
* Keeps trailing '/'.
|
|
**/
|
|
void path_basedir(char *path)
|
|
{
|
|
char *last = NULL;
|
|
|
|
if (strlen(path) < 2)
|
|
return;
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|
|
last = find_last_slash(path);
|
|
|
|
if (last)
|
|
last[1] = '\0';
|
|
else
|
|
strlcpy(path, "." PATH_DEFAULT_SLASH(), 3);
|
|
}
|
|
|
|
/**
|
|
* path_parent_dir:
|
|
* @path : path
|
|
*
|
|
* Extracts parent directory by mutating path.
|
|
* Assumes that path is a directory. Keeps trailing '/'.
|
|
* If the path was already at the root directory, returns empty string
|
|
**/
|
|
void path_parent_dir(char *path)
|
|
{
|
|
size_t len = 0;
|
|
|
|
if (!path)
|
|
return;
|
|
|
|
len = strlen(path);
|
|
|
|
if (len && PATH_CHAR_IS_SLASH(path[len - 1]))
|
|
{
|
|
bool path_was_absolute = path_is_absolute(path);
|
|
|
|
path[len - 1] = '\0';
|
|
|
|
if (path_was_absolute && !find_last_slash(path))
|
|
{
|
|
/* We removed the only slash from what used to be an absolute path.
|
|
* On Linux, this goes from "/" to an empty string and everything works fine,
|
|
* but on Windows, we went from C:\ to C:, which is not a valid path and that later
|
|
* gets errornously treated as a relative one by path_basedir and returns "./".
|
|
* What we really wanted is an empty string. */
|
|
path[0] = '\0';
|
|
return;
|
|
}
|
|
}
|
|
path_basedir(path);
|
|
}
|
|
|
|
/**
|
|
* path_basename:
|
|
* @path : path
|
|
*
|
|
* Get basename from @path.
|
|
*
|
|
* Returns: basename from path.
|
|
**/
|
|
const char *path_basename(const char *path)
|
|
{
|
|
/* We cut at the first compression-related hash */
|
|
const char *delim = path_get_archive_delim(path);
|
|
if (delim)
|
|
return delim + 1;
|
|
|
|
{
|
|
/* We cut at the last slash */
|
|
const char *last = find_last_slash(path);
|
|
if (last)
|
|
return last + 1;
|
|
}
|
|
|
|
return path;
|
|
}
|
|
|
|
/* Specialized version */
|
|
const char *path_basename_nocompression(const char *path)
|
|
{
|
|
/* We cut at the last slash */
|
|
const char *last = find_last_slash(path);
|
|
if (last)
|
|
return last + 1;
|
|
return path;
|
|
}
|
|
|
|
/**
|
|
* path_is_absolute:
|
|
* @path : path
|
|
*
|
|
* Checks if @path is an absolute path or a relative path.
|
|
*
|
|
* Returns: true if path is absolute, false if path is relative.
|
|
**/
|
|
bool path_is_absolute(const char *path)
|
|
{
|
|
if (string_is_empty(path))
|
|
return false;
|
|
|
|
if (path[0] == '/')
|
|
return true;
|
|
|
|
#if defined(_WIN32)
|
|
/* Many roads lead to Rome...
|
|
* Note: Drive letter can only be 1 character long */
|
|
if (string_starts_with_size(path, "\\\\", STRLEN_CONST("\\\\")) ||
|
|
string_starts_with_size(path + 1, ":/", STRLEN_CONST(":/")) ||
|
|
string_starts_with_size(path + 1, ":\\", STRLEN_CONST(":\\")))
|
|
return true;
|
|
#elif defined(__wiiu__) || defined(VITA)
|
|
{
|
|
const char *seperator = strchr(path, ':');
|
|
if (seperator && (seperator[1] == '/'))
|
|
return true;
|
|
}
|
|
#endif
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* path_resolve_realpath:
|
|
* @buf : input and output buffer for path
|
|
* @size : size of buffer
|
|
* @resolve_symlinks : whether to resolve symlinks or not
|
|
*
|
|
* Resolves use of ".", "..", multiple slashes etc in absolute paths.
|
|
*
|
|
* Relative paths are rebased on the current working dir.
|
|
*
|
|
* Returns: @buf if successful, NULL otherwise.
|
|
* Note: Not implemented on consoles
|
|
* Note: Symlinks are only resolved on Unix-likes
|
|
* Note: The current working dir might not be what you expect,
|
|
* e.g. on Android it is "/"
|
|
* Use of fill_pathname_resolve_relative() should be prefered
|
|
**/
|
|
char *path_resolve_realpath(char *buf, size_t size, bool resolve_symlinks)
|
|
{
|
|
#if !defined(RARCH_CONSOLE) && defined(RARCH_INTERNAL)
|
|
#ifdef _WIN32
|
|
char *ret = NULL;
|
|
wchar_t abs_path[PATH_MAX_LENGTH];
|
|
wchar_t *rel_path = utf8_to_utf16_string_alloc(buf);
|
|
|
|
if (rel_path)
|
|
{
|
|
if (_wfullpath(abs_path, rel_path, PATH_MAX_LENGTH))
|
|
{
|
|
char *tmp = utf16_to_utf8_string_alloc(abs_path);
|
|
|
|
if (tmp)
|
|
{
|
|
strlcpy(buf, tmp, size);
|
|
free(tmp);
|
|
ret = buf;
|
|
}
|
|
}
|
|
|
|
free(rel_path);
|
|
}
|
|
|
|
return ret;
|
|
#else
|
|
char tmp[PATH_MAX_LENGTH];
|
|
size_t t;
|
|
char *p;
|
|
const char *next;
|
|
const char *buf_end;
|
|
|
|
if (resolve_symlinks)
|
|
{
|
|
strlcpy(tmp, buf, sizeof(tmp));
|
|
|
|
/* NOTE: realpath() expects at least PATH_MAX_LENGTH bytes in buf.
|
|
* Technically, PATH_MAX_LENGTH 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);
|
|
return NULL;
|
|
}
|
|
|
|
return buf;
|
|
}
|
|
|
|
t = 0; /* length of output */
|
|
buf_end = buf + strlen(buf);
|
|
|
|
if (!path_is_absolute(buf))
|
|
{
|
|
size_t len;
|
|
/* rebase on working directory */
|
|
if (!getcwd(tmp, PATH_MAX_LENGTH-1))
|
|
return NULL;
|
|
|
|
len = strlen(tmp);
|
|
t += len;
|
|
|
|
if (tmp[len-1] != '/')
|
|
tmp[t++] = '/';
|
|
|
|
if (string_is_empty(buf))
|
|
goto end;
|
|
|
|
p = buf;
|
|
}
|
|
else
|
|
{
|
|
/* UNIX paths can start with multiple '/', copy those */
|
|
for (p = buf; *p == '/'; p++)
|
|
tmp[t++] = '/';
|
|
}
|
|
|
|
/* p points to just after a slash while 'next' points to the next slash
|
|
* if there are no slashes, they point relative to where one would be */
|
|
do
|
|
{
|
|
next = strchr(p, '/');
|
|
if (!next)
|
|
next = buf_end;
|
|
|
|
if ((next - p == 2 && p[0] == '.' && p[1] == '.'))
|
|
{
|
|
p += 3;
|
|
|
|
/* fail for illegal /.., //.. etc */
|
|
if (t == 1 || tmp[t-2] == '/')
|
|
return NULL;
|
|
|
|
/* delete previous segment in tmp by adjusting size t
|
|
* tmp[t-1] == '/', find '/' before that */
|
|
t = t-2;
|
|
while (tmp[t] != '/')
|
|
t--;
|
|
t++;
|
|
}
|
|
else if (next - p == 1 && p[0] == '.')
|
|
p += 2;
|
|
else if (next - p == 0)
|
|
p += 1;
|
|
else
|
|
{
|
|
/* fail when truncating */
|
|
if (t + next-p+1 > PATH_MAX_LENGTH-1)
|
|
return NULL;
|
|
|
|
while (p <= next)
|
|
tmp[t++] = *p++;
|
|
}
|
|
|
|
}
|
|
while (next < buf_end);
|
|
|
|
end:
|
|
tmp[t] = '\0';
|
|
strlcpy(buf, tmp, size);
|
|
return buf;
|
|
#endif
|
|
#endif
|
|
return NULL;
|
|
}
|
|
|
|
/**
|
|
* path_relative_to:
|
|
* @out : buffer to write the relative path to
|
|
* @path : path to be expressed relatively
|
|
* @base : base directory to start out on
|
|
* @size : size of output buffer
|
|
*
|
|
* Turns @path into a path relative to @base and writes it to @out.
|
|
*
|
|
* @base is assumed to be a base directory, i.e. a path ending with '/' or '\'.
|
|
* Both @path and @base are assumed to be absolute paths without "." or "..".
|
|
*
|
|
* E.g. path /a/b/e/f.cg with base /a/b/c/d/ turns into ../../e/f.cg
|
|
**/
|
|
size_t path_relative_to(char *out,
|
|
const char *path, const char *base, size_t size)
|
|
{
|
|
size_t i, j;
|
|
const char *trimmed_path, *trimmed_base;
|
|
|
|
#ifdef _WIN32
|
|
/* For different drives, return absolute path */
|
|
if (strlen(path) >= 2 && strlen(base) >= 2
|
|
&& path[1] == ':' && base[1] == ':'
|
|
&& path[0] != base[0])
|
|
return strlcpy(out, path, size);
|
|
#endif
|
|
|
|
/* Trim common beginning */
|
|
for (i = 0, j = 0; path[i] && base[i] && path[i] == base[i]; i++)
|
|
if (path[i] == PATH_DEFAULT_SLASH_C())
|
|
j = i + 1;
|
|
|
|
trimmed_path = path+j;
|
|
trimmed_base = base+i;
|
|
|
|
/* Each segment of base turns into ".." */
|
|
out[0] = '\0';
|
|
for (i = 0; trimmed_base[i]; i++)
|
|
if (trimmed_base[i] == PATH_DEFAULT_SLASH_C())
|
|
strlcat(out, ".." PATH_DEFAULT_SLASH(), size);
|
|
|
|
return strlcat(out, trimmed_path, size);
|
|
}
|
|
|
|
/**
|
|
* fill_pathname_resolve_relative:
|
|
* @out_path : output path
|
|
* @in_refpath : input reference path
|
|
* @in_path : input path
|
|
* @size : size of @out_path
|
|
*
|
|
* Joins basedir of @in_refpath together with @in_path.
|
|
* If @in_path is an absolute path, out_path = in_path.
|
|
* E.g.: in_refpath = "/foo/bar/baz.a", in_path = "foobar.cg",
|
|
* out_path = "/foo/bar/foobar.cg".
|
|
**/
|
|
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))
|
|
{
|
|
strlcpy(out_path, in_path, size);
|
|
return;
|
|
}
|
|
|
|
fill_pathname_basedir(out_path, in_refpath, size);
|
|
strlcat(out_path, in_path, size);
|
|
path_resolve_realpath(out_path, size, false);
|
|
}
|
|
|
|
/**
|
|
* fill_pathname_join:
|
|
* @out_path : output path
|
|
* @dir : directory
|
|
* @path : path
|
|
* @size : size of output path
|
|
*
|
|
* Joins a directory (@dir) and path (@path) together.
|
|
* Makes sure not to get two consecutive slashes
|
|
* between directory and path.
|
|
**/
|
|
size_t fill_pathname_join(char *out_path,
|
|
const char *dir, const char *path, size_t size)
|
|
{
|
|
if (out_path != dir)
|
|
strlcpy(out_path, dir, size);
|
|
|
|
if (*out_path)
|
|
fill_pathname_slash(out_path, size);
|
|
|
|
return strlcat(out_path, path, size);
|
|
}
|
|
|
|
size_t fill_pathname_join_special_ext(char *out_path,
|
|
const char *dir, const char *path,
|
|
const char *last, const char *ext,
|
|
size_t size)
|
|
{
|
|
fill_pathname_join(out_path, dir, path, size);
|
|
if (*out_path)
|
|
fill_pathname_slash(out_path, size);
|
|
|
|
strlcat(out_path, last, size);
|
|
return strlcat(out_path, ext, size);
|
|
}
|
|
|
|
size_t fill_pathname_join_concat_noext(char *out_path,
|
|
const char *dir, const char *path,
|
|
const char *concat,
|
|
size_t size)
|
|
{
|
|
fill_pathname_noext(out_path, dir, path, size);
|
|
return strlcat(out_path, concat, size);
|
|
}
|
|
|
|
size_t fill_pathname_join_concat(char *out_path,
|
|
const char *dir, const char *path,
|
|
const char *concat,
|
|
size_t size)
|
|
{
|
|
fill_pathname_join(out_path, dir, path, size);
|
|
return strlcat(out_path, concat, size);
|
|
}
|
|
|
|
void fill_pathname_join_noext(char *out_path,
|
|
const char *dir, const char *path, size_t size)
|
|
{
|
|
fill_pathname_join(out_path, dir, path, size);
|
|
path_remove_extension(out_path);
|
|
}
|
|
|
|
/**
|
|
* fill_pathname_join_delim:
|
|
* @out_path : output path
|
|
* @dir : directory
|
|
* @path : path
|
|
* @delim : delimiter
|
|
* @size : size of output path
|
|
*
|
|
* Joins a directory (@dir) and path (@path) together
|
|
* using the given delimiter (@delim).
|
|
**/
|
|
size_t fill_pathname_join_delim(char *out_path, const char *dir,
|
|
const char *path, const char delim, size_t size)
|
|
{
|
|
size_t copied;
|
|
/* behavior of strlcpy is undefined if dst and src overlap */
|
|
if (out_path == dir)
|
|
copied = strlen(dir);
|
|
else
|
|
copied = strlcpy(out_path, dir, size);
|
|
|
|
out_path[copied] = delim;
|
|
out_path[copied+1] = '\0';
|
|
|
|
if (path)
|
|
copied = strlcat(out_path, path, size);
|
|
return copied;
|
|
}
|
|
|
|
size_t fill_pathname_join_delim_concat(char *out_path, const char *dir,
|
|
const char *path, const char delim, const char *concat,
|
|
size_t size)
|
|
{
|
|
fill_pathname_join_delim(out_path, dir, path, delim, size);
|
|
return strlcat(out_path, concat, size);
|
|
}
|
|
|
|
/**
|
|
* fill_short_pathname_representation:
|
|
* @out_rep : output representation
|
|
* @in_path : input path
|
|
* @size : size of output representation
|
|
*
|
|
* Generates a short representation of path. It should only
|
|
* be used for displaying the result; the output representation is not
|
|
* binding in any meaningful way (for a normal path, this is the same as basename)
|
|
* In case of more complex URLs, this should cut everything except for
|
|
* the main image file.
|
|
*
|
|
* E.g.: "/path/to/game.img" -> game.img
|
|
* "/path/to/myarchive.7z#folder/to/game.img" -> game.img
|
|
*/
|
|
size_t fill_short_pathname_representation(char* out_rep,
|
|
const char *in_path, size_t size)
|
|
{
|
|
char path_short[NAME_MAX_LENGTH];
|
|
|
|
path_short[0] = '\0';
|
|
|
|
fill_pathname(path_short, path_basename(in_path), "",
|
|
sizeof(path_short));
|
|
|
|
return strlcpy(out_rep, path_short, size);
|
|
}
|
|
|
|
void fill_short_pathname_representation_noext(char* out_rep,
|
|
const char *in_path, size_t size)
|
|
{
|
|
fill_short_pathname_representation(out_rep, in_path, size);
|
|
path_remove_extension(out_rep);
|
|
}
|
|
|
|
void fill_pathname_expand_special(char *out_path,
|
|
const char *in_path, size_t size)
|
|
{
|
|
#if !defined(RARCH_CONSOLE) && defined(RARCH_INTERNAL)
|
|
if (in_path[0] == '~')
|
|
{
|
|
char *home_dir = (char*)malloc(PATH_MAX_LENGTH * sizeof(char));
|
|
|
|
home_dir[0] = '\0';
|
|
|
|
fill_pathname_home_dir(home_dir,
|
|
PATH_MAX_LENGTH * sizeof(char));
|
|
|
|
if (*home_dir)
|
|
{
|
|
size_t src_size = strlcpy(out_path, home_dir, size);
|
|
retro_assert(src_size < size);
|
|
|
|
out_path += src_size;
|
|
size -= src_size;
|
|
|
|
if (!PATH_CHAR_IS_SLASH(out_path[-1]))
|
|
{
|
|
src_size = strlcpy(out_path, PATH_DEFAULT_SLASH(), size);
|
|
retro_assert(src_size < size);
|
|
|
|
out_path += src_size;
|
|
size -= src_size;
|
|
}
|
|
|
|
in_path += 2;
|
|
}
|
|
|
|
free(home_dir);
|
|
}
|
|
else if (in_path[0] == ':')
|
|
{
|
|
char *application_dir = (char*)malloc(PATH_MAX_LENGTH * sizeof(char));
|
|
|
|
application_dir[0] = '\0';
|
|
|
|
fill_pathname_application_dir(application_dir,
|
|
PATH_MAX_LENGTH * sizeof(char));
|
|
|
|
if (*application_dir)
|
|
{
|
|
size_t src_size = strlcpy(out_path, application_dir, size);
|
|
retro_assert(src_size < size);
|
|
|
|
out_path += src_size;
|
|
size -= src_size;
|
|
|
|
if (!PATH_CHAR_IS_SLASH(out_path[-1]))
|
|
{
|
|
src_size = strlcpy(out_path, PATH_DEFAULT_SLASH(), size);
|
|
retro_assert(src_size < size);
|
|
|
|
out_path += src_size;
|
|
size -= src_size;
|
|
}
|
|
|
|
in_path += 2;
|
|
}
|
|
|
|
free(application_dir);
|
|
}
|
|
#endif
|
|
|
|
retro_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) && defined(RARCH_INTERNAL)
|
|
unsigned i;
|
|
const char *candidates[3];
|
|
const char *notations[3];
|
|
char application_dir[PATH_MAX_LENGTH];
|
|
char home_dir[PATH_MAX_LENGTH];
|
|
|
|
application_dir[0] = '\0';
|
|
home_dir[0] = '\0';
|
|
|
|
/* 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. */
|
|
|
|
/* ugly hack - use application_dir pointer
|
|
* before filling it in. C89 reasons */
|
|
candidates[0] = application_dir;
|
|
candidates[1] = home_dir;
|
|
candidates[2] = NULL;
|
|
|
|
notations [0] = ":";
|
|
notations [1] = "~";
|
|
notations [2] = NULL;
|
|
|
|
fill_pathname_application_dir(application_dir, sizeof(application_dir));
|
|
fill_pathname_home_dir(home_dir, sizeof(home_dir));
|
|
|
|
for (i = 0; candidates[i]; i++)
|
|
{
|
|
if (!string_is_empty(candidates[i]) &&
|
|
string_starts_with(in_path, candidates[i]))
|
|
{
|
|
size_t src_size = strlcpy(out_path, notations[i], size);
|
|
|
|
retro_assert(src_size < size);
|
|
|
|
out_path += src_size;
|
|
size -= src_size;
|
|
in_path += strlen(candidates[i]);
|
|
|
|
if (!PATH_CHAR_IS_SLASH(*in_path))
|
|
{
|
|
strcpy_literal(out_path, PATH_DEFAULT_SLASH());
|
|
out_path++;
|
|
size--;
|
|
}
|
|
|
|
break; /* Don't allow more abbrevs to take place. */
|
|
}
|
|
}
|
|
|
|
#endif
|
|
|
|
retro_assert(strlcpy(out_path, in_path, size) < size);
|
|
}
|
|
|
|
/* Changes the slashes to the correct kind for the os
|
|
* So forward slash on linux and backslash on Windows */
|
|
void pathname_conform_slashes_to_os(char *path)
|
|
{
|
|
/* Conform slashes to os standard so we get proper matching */
|
|
char* p;
|
|
for (p = path; *p; p++)
|
|
if (*p == '/' || *p == '\\')
|
|
*p = PATH_DEFAULT_SLASH_C();
|
|
}
|
|
|
|
/* Change all shashes to forward so they are more portable between windows and linux */
|
|
void pathname_make_slashes_portable(char *path)
|
|
{
|
|
/* Conform slashes to os standard so we get proper matching */
|
|
char* p;
|
|
for (p = path; *p; p++)
|
|
if (*p == '/' || *p == '\\')
|
|
*p = '/';
|
|
}
|
|
|
|
/* Get the number of slashes in a path, returns an integer */
|
|
int get_pathname_num_slashes(const char *in_path)
|
|
{
|
|
int num_slashes = 0;
|
|
int i = 0;
|
|
|
|
for (i = 0; i < PATH_MAX_LENGTH; i++)
|
|
{
|
|
if (PATH_CHAR_IS_SLASH(in_path[i]))
|
|
num_slashes++;
|
|
if (in_path[i] == '\0')
|
|
break;
|
|
}
|
|
|
|
return num_slashes;
|
|
}
|
|
|
|
/* Fills the supplied path with either the abbreviated path or the relative path, which ever
|
|
* one is has less depth / number of slashes
|
|
* If lengths of abbreviated and relative paths are the same the relative path will be used
|
|
* in_path can be an absolute, relative or abbreviated path */
|
|
void fill_pathname_abbreviated_or_relative(char *out_path, const char *in_refpath, const char *in_path, size_t size)
|
|
{
|
|
char in_path_conformed[PATH_MAX_LENGTH];
|
|
char in_refpath_conformed[PATH_MAX_LENGTH];
|
|
char expanded_path[PATH_MAX_LENGTH];
|
|
char absolute_path[PATH_MAX_LENGTH];
|
|
char relative_path[PATH_MAX_LENGTH];
|
|
char abbreviated_path[PATH_MAX_LENGTH];
|
|
|
|
in_path_conformed[0] = '\0';
|
|
in_refpath_conformed[0] = '\0';
|
|
expanded_path[0] = '\0';
|
|
absolute_path[0] = '\0';
|
|
relative_path[0] = '\0';
|
|
abbreviated_path[0] = '\0';
|
|
|
|
strcpy_literal(in_path_conformed, in_path);
|
|
strcpy_literal(in_refpath_conformed, in_refpath);
|
|
|
|
pathname_conform_slashes_to_os(in_path_conformed);
|
|
pathname_conform_slashes_to_os(in_refpath_conformed);
|
|
|
|
/* Expand paths which start with :\ to an absolute path */
|
|
fill_pathname_expand_special(expanded_path,
|
|
in_path_conformed, sizeof(expanded_path));
|
|
|
|
/* Get the absolute path if it is not already */
|
|
if (path_is_absolute(expanded_path))
|
|
strlcpy(absolute_path, expanded_path, PATH_MAX_LENGTH);
|
|
else
|
|
fill_pathname_resolve_relative(absolute_path,
|
|
in_refpath_conformed, in_path_conformed, PATH_MAX_LENGTH);
|
|
|
|
pathname_conform_slashes_to_os(absolute_path);
|
|
|
|
/* Get the relative path and see how many directories long it is */
|
|
path_relative_to(relative_path, absolute_path,
|
|
in_refpath_conformed, sizeof(relative_path));
|
|
|
|
/* Get the abbreviated path and see how many directories long it is */
|
|
fill_pathname_abbreviate_special(abbreviated_path,
|
|
absolute_path, sizeof(abbreviated_path));
|
|
|
|
/* Use the shortest path, preferring the relative path*/
|
|
if ( get_pathname_num_slashes(relative_path) <=
|
|
get_pathname_num_slashes(abbreviated_path))
|
|
retro_assert(strlcpy(out_path, relative_path, size) < size);
|
|
else
|
|
retro_assert(strlcpy(out_path, abbreviated_path, size) < size);
|
|
}
|
|
|
|
/**
|
|
* path_basedir:
|
|
* @path : path
|
|
*
|
|
* Extracts base directory by mutating path.
|
|
* Keeps trailing '/'.
|
|
**/
|
|
void path_basedir_wrapper(char *path)
|
|
{
|
|
char *last = NULL;
|
|
if (strlen(path) < 2)
|
|
return;
|
|
|
|
#ifdef HAVE_COMPRESSION
|
|
/* We want to find the directory with the archive in basedir. */
|
|
last = (char*)path_get_archive_delim(path);
|
|
if (last)
|
|
*last = '\0';
|
|
#endif
|
|
|
|
last = find_last_slash(path);
|
|
|
|
if (last)
|
|
last[1] = '\0';
|
|
else
|
|
strlcpy(path, "." PATH_DEFAULT_SLASH(), 3);
|
|
}
|
|
|
|
#if !defined(RARCH_CONSOLE) && defined(RARCH_INTERNAL)
|
|
void fill_pathname_application_path(char *s, size_t len)
|
|
{
|
|
size_t i;
|
|
#ifdef __APPLE__
|
|
CFBundleRef bundle = CFBundleGetMainBundle();
|
|
#endif
|
|
#ifdef _WIN32
|
|
DWORD ret = 0;
|
|
wchar_t wstr[PATH_MAX_LENGTH] = {0};
|
|
#endif
|
|
#ifdef __HAIKU__
|
|
image_info info;
|
|
int32_t cookie = 0;
|
|
#endif
|
|
(void)i;
|
|
|
|
if (!len)
|
|
return;
|
|
|
|
#if defined(_WIN32)
|
|
#ifdef LEGACY_WIN32
|
|
ret = GetModuleFileNameA(NULL, s, len);
|
|
#else
|
|
ret = GetModuleFileNameW(NULL, wstr, ARRAY_SIZE(wstr));
|
|
|
|
if (*wstr)
|
|
{
|
|
char *str = utf16_to_utf8_string_alloc(wstr);
|
|
|
|
if (str)
|
|
{
|
|
strlcpy(s, str, len);
|
|
free(str);
|
|
}
|
|
}
|
|
#endif
|
|
s[ret] = '\0';
|
|
#elif defined(__APPLE__)
|
|
if (bundle)
|
|
{
|
|
CFURLRef bundle_url = CFBundleCopyBundleURL(bundle);
|
|
CFStringRef bundle_path = CFURLCopyPath(bundle_url);
|
|
CFStringGetCString(bundle_path, s, len, kCFStringEncodingUTF8);
|
|
#ifdef HAVE_COCOATOUCH
|
|
{
|
|
/* This needs to be done so that the path becomes
|
|
* /private/var/... and this
|
|
* is used consistently throughout for the iOS bundle path */
|
|
char resolved_bundle_dir_buf[PATH_MAX_LENGTH] = {0};
|
|
if (realpath(s, resolved_bundle_dir_buf))
|
|
{
|
|
strlcpy(s, resolved_bundle_dir_buf, len - 1);
|
|
strlcat(s, "/", len);
|
|
}
|
|
}
|
|
#endif
|
|
|
|
CFRelease(bundle_path);
|
|
CFRelease(bundle_url);
|
|
#ifndef HAVE_COCOATOUCH
|
|
/* Not sure what this does but it breaks
|
|
* stuff for iOS, so skipping */
|
|
retro_assert(strlcat(s, "nobin", len) < len);
|
|
#endif
|
|
return;
|
|
}
|
|
#elif defined(__HAIKU__)
|
|
while (get_next_image_info(0, &cookie, &info) == B_OK)
|
|
{
|
|
if (info.type == B_APP_IMAGE)
|
|
{
|
|
strlcpy(s, info.name, len);
|
|
return;
|
|
}
|
|
}
|
|
#elif defined(__QNX__)
|
|
char *buff = malloc(len);
|
|
|
|
if (_cmdname(buff))
|
|
strlcpy(s, buff, len);
|
|
|
|
free(buff);
|
|
#else
|
|
{
|
|
pid_t pid;
|
|
static const char *exts[] = { "exe", "file", "path/a.out" };
|
|
char link_path[255];
|
|
|
|
link_path[0] = *s = '\0';
|
|
pid = getpid();
|
|
|
|
/* Linux, BSD and Solaris paths. Not standardized. */
|
|
for (i = 0; i < ARRAY_SIZE(exts); i++)
|
|
{
|
|
ssize_t ret;
|
|
|
|
snprintf(link_path, sizeof(link_path), "/proc/%u/%s",
|
|
(unsigned)pid, exts[i]);
|
|
ret = readlink(link_path, s, len - 1);
|
|
|
|
if (ret >= 0)
|
|
{
|
|
s[ret] = '\0';
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
}
|
|
|
|
void fill_pathname_application_dir(char *s, size_t len)
|
|
{
|
|
#ifdef __WINRT__
|
|
strlcpy(s, uwp_dir_install, len);
|
|
#else
|
|
fill_pathname_application_path(s, len);
|
|
path_basedir_wrapper(s);
|
|
#endif
|
|
}
|
|
|
|
void fill_pathname_home_dir(char *s, size_t len)
|
|
{
|
|
#ifdef __WINRT__
|
|
const char *home = uwp_dir_data;
|
|
#else
|
|
const char *home = getenv("HOME");
|
|
#endif
|
|
if (home)
|
|
strlcpy(s, home, len);
|
|
else
|
|
*s = 0;
|
|
}
|
|
#endif
|
|
|
|
bool is_path_accessible_using_standard_io(const char *path)
|
|
{
|
|
#ifdef __WINRT__
|
|
DWORD trygetattrbs = GetFileAttributesA(path);
|
|
return trygetattrbs != INVALID_FILE_ATTRIBUTES;
|
|
#else
|
|
return true;
|
|
#endif
|
|
}
|