mirror of
https://github.com/Fennix-Project/Kernel.git
synced 2025-05-25 22:14:37 +00:00
116 lines
2.8 KiB
C++
116 lines
2.8 KiB
C++
/*
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This file is part of Fennix Kernel.
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Fennix Kernel is free software: you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation, either version 3 of
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the License, or (at your option) any later version.
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Fennix Kernel is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Fennix Kernel. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include <exec.hpp>
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#include <msexec.h>
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#include "../kernel.h"
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#include "../Fex.hpp"
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namespace Execute
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{
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BinaryType GetBinaryType(const char *Path)
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{
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BinaryType Type;
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int fd = fopen(Path, "r");
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if (fd < 0)
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return (BinaryType)fd;
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debug("File opened: %s, descriptor %d", Path, fd);
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Memory::SmartHeap sh = Memory::SmartHeap(1024);
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fread(fd, sh, 128);
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Fex *FexHdr = (Fex *)sh.Get();
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Elf32_Ehdr *ELFHeader = (Elf32_Ehdr *)sh.Get();
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IMAGE_DOS_HEADER *MZHeader = (IMAGE_DOS_HEADER *)sh.Get();
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/* Check Fex header. */
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if (FexHdr->Magic[0] == 'F' &&
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FexHdr->Magic[1] == 'E' &&
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FexHdr->Magic[2] == 'X' &&
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FexHdr->Magic[3] == '\0')
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{
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/* If the fex type is driver, we shouldn't return as Fex. */
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if (FexHdr->Type == FexFormatType_Executable)
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{
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debug("Image - Fex");
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Type = BinaryType::BinTypeFex;
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goto Success;
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}
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else if (FexHdr->Type == FexFormatType_Module)
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{
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fixme("Fex Module is not supposed to be executed.");
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/* TODO: Module installation pop-up. */
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}
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}
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/* Check ELF header. */
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else if (ELFHeader->e_ident[EI_MAG0] == ELFMAG0 &&
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ELFHeader->e_ident[EI_MAG1] == ELFMAG1 &&
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ELFHeader->e_ident[EI_MAG2] == ELFMAG2 &&
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ELFHeader->e_ident[EI_MAG3] == ELFMAG3)
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{
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debug("Image - ELF");
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Type = BinaryType::BinTypeELF;
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goto Success;
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}
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/* Check MZ header. */
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else if (MZHeader->e_magic == IMAGE_DOS_SIGNATURE)
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{
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lseek(fd, MZHeader->e_lfanew, SEEK_SET);
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fread(fd, sh, 512);
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IMAGE_NT_HEADERS *PEHeader =
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(IMAGE_NT_HEADERS *)(((char *)sh.Get()) +
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MZHeader->e_lfanew);
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IMAGE_OS2_HEADER *NEHeader =
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(IMAGE_OS2_HEADER *)(((char *)sh.Get()) +
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MZHeader->e_lfanew);
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/* TODO: LE, EDOS */
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if (PEHeader->Signature == IMAGE_NT_SIGNATURE)
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{
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debug("Image - PE");
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Type = BinaryType::BinTypePE;
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goto Success;
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}
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else if (NEHeader->ne_magic == IMAGE_OS2_SIGNATURE)
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{
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debug("Image - NE");
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Type = BinaryType::BinTypeNE;
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goto Success;
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}
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else
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{
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debug("Image - MZ");
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Type = BinaryType::BinTypeMZ;
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goto Success;
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}
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}
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/* ... */
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Type = BinaryType::BinTypeUnknown;
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Success:
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fclose(fd);
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return Type;
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}
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}
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