As you probably already know, this Tuesday a potentially catastrophic flaw has been identified on glibc function called getaddrinfo(), which performs domain name …

linux - Force getaddrinfo to use IPv4 - Unix & Linux Stack The getaddrinfo(3) function is not limited to creating IPv4 socket address structures; IPv6 socket address structures can be created if IPv6 support is available. These socket address structures can be used directly by bind(2) or connect(2), to prepare a client or a server socket. getaddrinfo - Unix & Linux Stack Exchange Unix & Linux Stack Exchange is a question and answer site for users of Linux, FreeBSD and other Un*x-like operating systems. It only takes a minute to sign up. Sign up to join this community. Anybody can ask a question (Device or resource busy - getaddrinfo)): gethostbyname(3) - Linux manual page Applications should use getaddrinfo(3), getnameinfo(3), and gai_strerror(3) instead. The gethostbyname () function returns a structure of type hostent for the given host name . Here name is either a hostname or an IPv4 address in standard dot notation (as for inet_addr(3) ). ip address using getaddrinfo()

getaddrinfo_a(3) - Linux manual page - Michael Kerrisk

How To Patch and Protect Linux Glibc Getaddrinfo Stack-based Buffer Overflow Zero Day Vulnerability. A stack-based critical buffer overflow was found in the way the libresolv library (glibc) performed dual A/AAAA DNS queries. A remote attacker could crash or, potentially, execute code running the library on Linux.

ip address using getaddrinfo()

Jan 26, 2020