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#include "crypto.h"
#include "myutils.h"
#include "platform.h"
namespace securefs
{
const OSService& OSService::get_default()
{
static const OSService service;
return service;
}
std::string OSService::temp_name(StringRef prefix, StringRef suffix)
{
byte random[16];
generate_random(random, array_length(random));
std::string result;
result.reserve(prefix.size() + 32 + suffix.size());
result.append(prefix.data(), prefix.size());
result.append(hexify(random, array_length(random)));
result.append(suffix.data(), suffix.size());
return result;
}
void OSService::ensure_directory(StringRef path, unsigned mode) const
{
try
{
mkdir(path, mode);
}
catch (const ExceptionBase& e)
{
if (e.error_number() != EEXIST)
throw;
}
}
bool OSService::remove_file_nothrow(StringRef path) const noexcept
{
try
{
remove_file(path);
return true;
}
catch (...)
{
return false;
}
}
bool OSService::remove_directory_nothrow(StringRef path) const noexcept
{
try
{
remove_directory(path);
return true;
}
catch (...)
{
return false;
}
}
void OSService::recursive_traverse(StringRef dir, const recursive_traverse_callback& callback) const
{
auto traverser = create_traverser(dir);
std::string name;
struct fuse_stat st;
while (traverser->next(&name, &st))
{
if (name == "." || name == "..")
continue;
if ((S_IFMT & st.st_mode) == S_IFDIR)
{
recursive_traverse(dir + "/" + name, callback);
}
else
{
callback(dir, name);
}
}
}
DirectoryTraverser::~DirectoryTraverser() = default;
ssize_t FileStream::getxattr(const char*, void*, size_t) { throw VFSException(ENOTSUP); }
void FileStream::setxattr(const char*, void*, size_t, int) { throw VFSException(ENOTSUP); }
ssize_t FileStream::listxattr(char*, size_t) { throw VFSException(ENOTSUP); }
void FileStream::removexattr(const char*) { throw VFSException(ENOTSUP); }
} // namespace securefs
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