mirror of
https://github.com/Atmosphere-NX/Atmosphere.git
synced 2024-11-14 07:56:45 +00:00
126 lines
No EOL
4 KiB
C++
126 lines
No EOL
4 KiB
C++
/*
|
|
* Copyright (c) 2018-2020 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/>.
|
|
*/
|
|
|
|
#include <stratosphere.hpp>
|
|
#include "ini.h"
|
|
|
|
namespace ams::util::ini {
|
|
|
|
/* Ensure that types are the same for Handler vs ini_handler. */
|
|
static_assert(std::is_same<Handler, ::ini_handler>::value, "Bad ini::Handler definition!");
|
|
|
|
namespace {
|
|
|
|
struct FileContext {
|
|
fs::FileHandle file;
|
|
s64 offset;
|
|
s64 num_left;
|
|
|
|
explicit FileContext(fs::FileHandle f) : file(f), offset(0) {
|
|
R_ABORT_UNLESS(fs::GetFileSize(std::addressof(this->num_left), this->file));
|
|
}
|
|
};
|
|
|
|
struct IFileContext {
|
|
fs::fsa::IFile *file;
|
|
s64 offset;
|
|
s64 num_left;
|
|
|
|
explicit IFileContext(fs::fsa::IFile *f) : file(f), offset(0) {
|
|
R_ABORT_UNLESS(file->GetSize(std::addressof(this->num_left)));
|
|
}
|
|
};
|
|
|
|
char *ini_reader_file_handle(char *str, int num, void *stream) {
|
|
FileContext *ctx = static_cast<FileContext *>(stream);
|
|
|
|
if (ctx->num_left == 0 || num < 2) {
|
|
return nullptr;
|
|
}
|
|
|
|
/* Read as many bytes as we can. */
|
|
s64 cur_read = std::min<s64>(num - 1, ctx->num_left);
|
|
R_ABORT_UNLESS(fs::ReadFile(ctx->file, ctx->offset, str, cur_read, fs::ReadOption()));
|
|
|
|
/* Only "read" up to the first \n. */
|
|
size_t offset = cur_read;
|
|
for (auto i = 0; i < cur_read; i++) {
|
|
if (str[i] == '\n') {
|
|
offset = i + 1;
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* Ensure null termination. */
|
|
str[offset] = '\0';
|
|
|
|
/* Update context. */
|
|
ctx->offset += offset;
|
|
ctx->num_left -= offset;
|
|
|
|
return str;
|
|
}
|
|
|
|
char *ini_reader_ifile(char *str, int num, void *stream) {
|
|
IFileContext *ctx = static_cast<IFileContext *>(stream);
|
|
|
|
if (ctx->num_left == 0 || num < 2) {
|
|
return nullptr;
|
|
}
|
|
|
|
/* Read as many bytes as we can. */
|
|
s64 cur_read = std::min<s64>(num - 1, ctx->num_left);
|
|
size_t read;
|
|
R_ABORT_UNLESS(ctx->file->Read(std::addressof(read), ctx->offset, str, cur_read, fs::ReadOption()));
|
|
AMS_ABORT_UNLESS(static_cast<s64>(read) == cur_read);
|
|
|
|
/* Only "read" up to the first \n. */
|
|
size_t offset = cur_read;
|
|
for (auto i = 0; i < cur_read; i++) {
|
|
if (str[i] == '\n') {
|
|
offset = i + 1;
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* Ensure null termination. */
|
|
str[offset] = '\0';
|
|
|
|
/* Update context. */
|
|
ctx->offset += offset;
|
|
ctx->num_left -= offset;
|
|
|
|
return str;
|
|
}
|
|
|
|
}
|
|
|
|
/* Utilities for dealing with INI file configuration. */
|
|
int ParseString(const char *ini_str, void *user_ctx, Handler h) {
|
|
return ini_parse_string(ini_str, h, user_ctx);
|
|
}
|
|
|
|
int ParseFile(fs::FileHandle file, void *user_ctx, Handler h) {
|
|
FileContext ctx(file);
|
|
return ini_parse_stream(ini_reader_file_handle, &ctx, h, user_ctx);
|
|
}
|
|
|
|
int ParseFile(fs::fsa::IFile *file, void *user_ctx, Handler h) {
|
|
IFileContext ctx(file);
|
|
return ini_parse_stream(ini_reader_ifile, &ctx, h, user_ctx);
|
|
}
|
|
|
|
} |