verl/utils/net_utils.py

# Copyright 2023-2024 SGLang Team
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# ==============================================================================
# Copyright 2024 Bytedance Ltd. and/or its affiliates
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import ipaddress


def is_ipv4(ip_str: str) -> bool:
    """
    Check if the given string is an IPv4 address

    Args:
        ip_str: The IP address string to check

    Returns:
        bool: Returns True if it's an IPv4 address, False otherwise
    """
    try:
        ipaddress.IPv4Address(ip_str)
        return True
    except ipaddress.AddressValueError:
        return False


def is_ipv6(ip_str: str) -> bool:
    """
    Check if the given string is an IPv6 address

    Args:
        ip_str: The IP address string to check

    Returns:
        bool: Returns True if it's an IPv6 address, False otherwise
    """
    try:
        ipaddress.IPv6Address(ip_str)
        return True
    except ipaddress.AddressValueError:
        return False