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Prevent writing to directories (#3820)

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* Prevent writing to directories

* Prevent writing to directories
This commit is contained in:
marecl
2025-11-20 18:41:01 +01:00
committed by GitHub
parent 3f86c2e94a
commit 6612a32523
2 changed files with 23 additions and 0 deletions
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12
src/core/file_sys/directories/base_directory.h
View File

@@ -36,6 +36,18 @@ public:
return ORBIS_KERNEL_ERROR_EBADF; return ORBIS_KERNEL_ERROR_EBADF;
} }
virtual s64 write(const void* buf, u64 nbytes) {
return ORBIS_KERNEL_ERROR_EBADF;
}
virtual s64 writev(const Libraries::Kernel::OrbisKernelIovec* iov, s32 iovcnt) {
return ORBIS_KERNEL_ERROR_EBADF;
}
virtual s64 pwritev(const Libraries::Kernel::OrbisKernelIovec* iov, s32 iovcnt, s64 offset) {
return ORBIS_KERNEL_ERROR_EBADF;
}
virtual s64 lseek(s64 offset, s32 whence) { virtual s64 lseek(s64 offset, s32 whence) {
return ORBIS_KERNEL_ERROR_EBADF; return ORBIS_KERNEL_ERROR_EBADF;
} }

11
src/core/libraries/kernel/file_system.cpp
View File

@@ -311,6 +311,9 @@ s64 PS4_SYSV_ABI write(s32 fd, const void* buf, u64 nbytes) {
} else if (file->type == Core::FileSys::FileType::Socket) { } else if (file->type == Core::FileSys::FileType::Socket) {
// Socket functions handle errnos internally. // Socket functions handle errnos internally.
return file->socket->SendPacket(buf, nbytes, 0, nullptr, 0); return file->socket->SendPacket(buf, nbytes, 0, nullptr, 0);
} else if (file->type == Core::FileSys::FileType::Directory) {
*__Error() = POSIX_EBADF;
return -1;
} }
return file->f.WriteRaw<u8>(buf, nbytes); return file->f.WriteRaw<u8>(buf, nbytes);
@@ -405,7 +408,11 @@ s64 PS4_SYSV_ABI writev(s32 fd, const OrbisKernelIovec* iov, s32 iovcnt) {
return -1; return -1;
} }
return result; return result;
} else if (file->type == Core::FileSys::FileType::Directory) {
*__Error() = POSIX_EBADF;
return -1;
} }
s64 total_written = 0; s64 total_written = 0;
for (s32 i = 0; i < iovcnt; i++) { for (s32 i = 0; i < iovcnt; i++) {
total_written += file->f.WriteRaw<u8>(iov[i].iov_base, iov[i].iov_len); total_written += file->f.WriteRaw<u8>(iov[i].iov_base, iov[i].iov_len);
@@ -1047,7 +1054,11 @@ s64 PS4_SYSV_ABI posix_pwritev(s32 fd, const OrbisKernelIovec* iov, s32 iovcnt,
return -1; return -1;
} }
return result; return result;
} else if (file->type == Core::FileSys::FileType::Directory) {
*__Error() = POSIX_EBADF;
return -1;
} }
const s64 pos = file->f.Tell(); const s64 pos = file->f.Tell();
SCOPE_EXIT { SCOPE_EXIT {
file->f.Seek(pos); file->f.Seek(pos);