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87 lines
3.3 KiB
C++
87 lines
3.3 KiB
C++
// Copyright 2026 Mocktail Project Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#ifndef MOCKTAIL_COMPAT_BIONIC_STDIO_RUNTIME_H_
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#define MOCKTAIL_COMPAT_BIONIC_STDIO_RUNTIME_H_
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#include <sys/types.h>
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#include <cstdarg>
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#include <cstddef>
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#include <cstdio>
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#include <cwchar>
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namespace mocktail::compat {
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// Android's public LP64 FILE ABI is opaque but has a fixed 152-byte stride.
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// Old NDK clients derive stdin/stdout/stderr by indexing the exported __sF
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// array, so its size and alignment are part of the binary interface even when
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// all actual I/O is delegated to host stdio.
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constexpr size_t kBionicFileSize = 152;
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constexpr size_t kBionicStandardStreamCount = 3;
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FILE* TranslateBionicFile(FILE* stream) noexcept;
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void* BionicFileArraySymbolAddress() noexcept;
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void* BionicStdinSymbolAddress() noexcept;
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void* BionicStdoutSymbolAddress() noexcept;
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void* BionicStderrSymbolAddress() noexcept;
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} // namespace mocktail::compat
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extern "C" {
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alignas(sizeof(void*)) extern unsigned char
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__sF[mocktail::compat::kBionicStandardStreamCount]
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[mocktail::compat::kBionicFileSize];
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}
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// FILE values returned by host fopen/fdopen pass through unchanged. Pointers
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// into Bionic's ABI-sized __sF array are translated to the corresponding host
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// standard stream at this single boundary.
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extern "C" {
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size_t mocktail_fwrite(const void* buffer, size_t size, size_t count,
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FILE* stream);
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size_t mocktail_fread(void* buffer, size_t size, size_t count, FILE* stream);
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int mocktail_fflush(FILE* stream);
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int mocktail_fclose(FILE* stream);
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int mocktail_feof(FILE* stream);
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int mocktail_ferror(FILE* stream);
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void mocktail_clearerr(FILE* stream);
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int mocktail_fileno(FILE* stream);
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int mocktail_fseek(FILE* stream, long offset, int whence);
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long mocktail_ftell(FILE* stream);
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int mocktail_fseeko(FILE* stream, off_t offset, int whence);
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off_t mocktail_ftello(FILE* stream);
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char* mocktail_fgets(char* string, int count, FILE* stream);
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int mocktail_fputc(int character, FILE* stream);
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int mocktail_fputs(const char* string, FILE* stream);
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int mocktail_getc(FILE* stream);
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wint_t mocktail_fputwc(wchar_t character, FILE* stream);
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int mocktail_setvbuf(FILE* stream, char* buffer, int mode, size_t size);
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int mocktail_ungetc(int character, FILE* stream);
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int mocktail_vfprintf(FILE* stream, const char* format, va_list arguments);
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int mocktail_fprintf(FILE* stream, const char* format, ...);
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int mocktail_vfscanf(FILE* stream, const char* format, va_list arguments);
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int mocktail_fscanf(FILE* stream, const char* format, ...);
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size_t mocktail___fread_chk(void* buffer, size_t buffer_size, size_t size,
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size_t count, FILE* stream);
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size_t mocktail___fwrite_chk(const void* buffer, size_t buffer_size,
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size_t size, size_t count, FILE* stream);
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} // extern "C"
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#endif // MOCKTAIL_COMPAT_BIONIC_STDIO_RUNTIME_H_
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