void PathUtils::concatPath(Firebird::PathName& result,
const Firebird::PathName& first,
const Firebird::PathName& second)
{
if (second.length() == 0)
{
result = first;
return;
}
if (first.length() == 0)
{
result = second;
return;
}
if (first[first.length() - 1] != dir_sep &&
second[0] != dir_sep)
{
result = first + dir_sep + second;
return;
}
if (first[first.length() - 1] == dir_sep &&
second[0] == dir_sep)
{
result = first;
result.append(second, 1, second.length() - 1);
return;
}
result = first + second;
}
// We don't work correctly with MBCS.
void PathUtils::ensureSeparator(Firebird::PathName& in_out)
{
if (in_out.length() == 0)
in_out = PathUtils::dir_sep;
if (in_out[in_out.length() - 1] != PathUtils::dir_sep)
in_out += PathUtils::dir_sep;
}
// moves DB path information (from limbo transaction) to another buffer
void getDbPathInfo(unsigned int& itemsLength, const unsigned char*& items,
unsigned int& bufferLength, unsigned char*& buffer,
Firebird::Array<unsigned char>& newItemsBuffer, const Firebird::PathName& dbpath)
{
if (itemsLength && items)
{
const unsigned char* ptr = (const unsigned char*) memchr(items, fb_info_tra_dbpath, itemsLength);
if (ptr)
{
newItemsBuffer.add(items, itemsLength);
newItemsBuffer.remove(ptr - items);
items = newItemsBuffer.begin();
--itemsLength;
unsigned int len = dbpath.length();
if (len + 3 > bufferLength)
{
len = bufferLength - 3;
}
bufferLength -= (len + 3);
*buffer++ = fb_info_tra_dbpath;
*buffer++ = len;
*buffer++ = len >> 8;
memcpy(buffer, dbpath.c_str(), len);
buffer += len;
}
}
}
void ModuleLoader::doctorModuleExtention(Firebird::PathName& name)
{
Firebird::PathName::size_type pos = name.rfind(".dylib");
if (pos != Firebird::PathName::npos && pos == name.length() - 6)
return; // No doctoring necessary
name += ".dylib";
}
bool ModuleLoader::doctorModuleExtension(Firebird::PathName& name, int& step)
{
if (name.isEmpty())
return false;
switch (step++)
{
case 0: // Step 0: append missing extension
{
Firebird::PathName::size_type pos = name.rfind("." SHRLIB_EXT);
if (pos != name.length() - 3)
{
pos = name.rfind("." SHRLIB_EXT ".");
if (pos == Firebird::PathName::npos)
{
name += "." SHRLIB_EXT;
return true;
}
}
step++; // instead of break
}
case 1: // Step 1: insert missing prefix
{
Firebird::PathName::size_type pos = name.rfind('/');
pos = (pos == Firebird::PathName::npos) ? 0 : pos + 1;
if (name.find("lib", pos) != pos)
{
name.insert(pos, "lib");
return true;
}
}
}
return false;
}
bool PathUtils::isRelative(const Firebird::PathName& path)
{
if (path.length() > 0)
{
char ds = path[0];
if (path.length() > 2) {
if (path[1] == ':' &&
(('A' <= path[0] && path[0] <= 'Z') ||
('a' <= path[0] && path[0] <= 'z')))
{
ds = path[2];
}
}
return ds != PathUtils::dir_sep && ds != '/';
}
return true;
}
bool PathUtils::isRelative(const Firebird::PathName& path)
{
if (path.length() > 0)
{
const char ds = hasDriveLetter(path) ? path[2] : path[0];
return ds != PathUtils::dir_sep && ds != '/';
}
return true;
}
void ModuleLoader::doctorModuleExtension(Firebird::PathName& name)
{
Firebird::PathName::size_type pos = name.rfind('/');
pos = (pos == Firebird::PathName::npos) ? 0 : pos + 1;
if (name.find("lib", pos) != pos)
{
name.insert(pos, "lib");
}
pos = name.rfind(".dylib");
if (pos == name.length() - 6)
return;
name += ".dylib";
}
void PathUtils::splitLastComponent(Firebird::PathName& path, Firebird::PathName& file,
const Firebird::PathName& orgPath)
{
Firebird::PathName::size_type pos = orgPath.rfind(dir_sep);
if (pos == Firebird::PathName::npos)
{
path = "";
file = orgPath;
return;
}
path.erase();
path.append(orgPath, 0, pos); // skip the directory separator
file.erase();
file.append(orgPath, pos + 1, orgPath.length() - pos - 1);
}
void ModuleLoader::doctorModuleExtension(Firebird::PathName& name)
{
if (name.isEmpty())
return;
Firebird::PathName::size_type pos = name.rfind("." SHRLIB_EXT);
if (pos != name.length() - 3)
{
name += "." SHRLIB_EXT;
}
pos = name.rfind('/');
pos = (pos == Firebird::PathName::npos) ? 0 : pos + 1;
if (name.find("lib", pos) != pos)
{
name.insert(pos, "lib");
}
}
void PathUtils::splitLastComponent(Firebird::PathName& path, Firebird::PathName& file,
const Firebird::PathName& orgPath)
{
Firebird::PathName::size_type pos = orgPath.rfind(PathUtils::dir_sep);
if (pos == Firebird::PathName::npos)
{
pos = orgPath.rfind('/'); // temp hack to make it work with paths,
// not expanded by ISC_expand_filename
if (pos == Firebird::PathName::npos)
{
path = "";
file = orgPath;
return;
}
}
path.erase();
path.append(orgPath, 0, pos); // skip the directory separator
file.erase();
file.append(orgPath, pos + 1, orgPath.length() - pos - 1);
}
bool PathUtils::isRelative(const Firebird::PathName& path)
{
if (path.length() > 0)
return path[0] != dir_sep;
return false;
}
static bool hasDriveLetter(const Firebird::PathName& path)
{
return path.length() > 2 && path[1] == ':' &&
(('A' <= path[0] && path[0] <= 'Z') ||
('a' <= path[0] && path[0] <= 'z'));
}