mirror of
https://github.com/Atmosphere-NX/Atmosphere.git
synced 2024-11-24 12:52:07 +00:00
123 lines
4.4 KiB
C++
123 lines
4.4 KiB
C++
/*
|
|
* Copyright (c) Atmosphère-NX
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms and conditions of the GNU General Public License,
|
|
* version 2, as published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope it will be useful, but WITHOUT
|
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
|
* more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
#pragma once
|
|
#include <stratosphere/fs/fs_common.hpp>
|
|
#include <stratosphere/fssrv/sf/fssrv_sf_path.hpp>
|
|
|
|
namespace ams::fs {
|
|
|
|
namespace StringTraits {
|
|
|
|
constexpr inline char DirectorySeparator = '/';
|
|
constexpr inline char DriveSeparator = ':';
|
|
constexpr inline char Dot = '.';
|
|
constexpr inline char NullTerminator = '\x00';
|
|
|
|
constexpr inline char AlternateDirectorySeparator = '\\';
|
|
|
|
}
|
|
|
|
/* Windows path utilities. */
|
|
constexpr inline bool IsWindowsDrive(const char *path) {
|
|
AMS_ASSERT(path != nullptr);
|
|
|
|
const char c = path[0];
|
|
return (('a' <= c && c <= 'z') || ('A' <= c && c <= 'Z')) && path[1] == StringTraits::DriveSeparator;
|
|
}
|
|
|
|
constexpr inline bool IsUnc(const char *path) {
|
|
return (path[0] == StringTraits::DirectorySeparator && path[1] == StringTraits::DirectorySeparator) ||
|
|
(path[0] == StringTraits::AlternateDirectorySeparator && path[1] == StringTraits::AlternateDirectorySeparator);
|
|
}
|
|
|
|
constexpr inline s64 GetWindowsPathSkipLength(const char *path) {
|
|
if (IsWindowsDrive(path)) {
|
|
return 2;
|
|
}
|
|
if (IsUnc(path)) {
|
|
for (s64 i = 2; path[i] != StringTraits::NullTerminator; ++i) {
|
|
if (path[i] == '$' || path[i] == ':') {
|
|
return i + 1;
|
|
}
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/* Path utilities. */
|
|
inline void Replace(char *dst, size_t dst_size, char old_char, char new_char) {
|
|
AMS_ASSERT(dst != nullptr);
|
|
for (char *cur = dst; cur < dst + dst_size && *cur != StringTraits::NullTerminator; ++cur) {
|
|
if (*cur == old_char) {
|
|
*cur = new_char;
|
|
}
|
|
}
|
|
}
|
|
|
|
Result FspPathPrintf(fssrv::sf::FspPath *dst, const char *format, ...) __attribute__((format(printf, 2, 3)));
|
|
|
|
inline Result FspPathPrintf(fssrv::sf::FspPath *dst, const char *format, ...) {
|
|
AMS_ASSERT(dst != nullptr);
|
|
|
|
/* Format the path. */
|
|
std::va_list va_list;
|
|
va_start(va_list, format);
|
|
const size_t len = util::VSNPrintf(dst->str, sizeof(dst->str), format, va_list);
|
|
va_end(va_list);
|
|
|
|
/* Validate length. */
|
|
R_UNLESS(len < sizeof(dst->str), fs::ResultTooLongPath());
|
|
|
|
/* Fix slashes. */
|
|
Replace(dst->str, sizeof(dst->str) - 1, '\\', '/');
|
|
|
|
return ResultSuccess();
|
|
}
|
|
|
|
Result VerifyPath(const char *path, int max_path_len, int max_name_len);
|
|
|
|
bool IsSubPath(const char *lhs, const char *rhs);
|
|
|
|
/* Path normalization. */
|
|
class PathNormalizer {
|
|
public:
|
|
static constexpr const char RootPath[] = "/";
|
|
public:
|
|
static constexpr inline bool IsSeparator(char c) {
|
|
return c == StringTraits::DirectorySeparator;
|
|
}
|
|
|
|
static constexpr inline bool IsAnySeparator(char c) {
|
|
return c == StringTraits::DirectorySeparator || c == StringTraits::AlternateDirectorySeparator;
|
|
}
|
|
|
|
static constexpr inline bool IsNullTerminator(char c) {
|
|
return c == StringTraits::NullTerminator;
|
|
}
|
|
|
|
static constexpr inline bool IsCurrentDirectory(const char *p) {
|
|
return p[0] == StringTraits::Dot && (IsSeparator(p[1]) || IsNullTerminator(p[1]));
|
|
}
|
|
|
|
static constexpr inline bool IsParentDirectory(const char *p) {
|
|
return p[0] == StringTraits::Dot && p[1] == StringTraits::Dot && (IsSeparator(p[2]) || IsNullTerminator(p[2]));
|
|
}
|
|
|
|
static Result Normalize(char *out, size_t *out_len, const char *src, size_t max_out_size, bool unc_preserved = false, bool has_mount_name = false);
|
|
static Result IsNormalized(bool *out, const char *path, bool unc_preserved = false, bool has_mount_name = false);
|
|
};
|
|
|
|
}
|