Linux socket 網路程式設計 [如果你想要設計能通用於 IPv4 與 IPv6 的程式也不用！]在現代，你有 getaddrinfo() 函式，可以幫你做許多事情，包含 DNS 與 service name 查詢，並填好你所需的 structs
The getaddrinfo() function combines the functionality provided by the gethostbyname(3) and getservbyname(3) functions into a single interface, but unlike the latter functions, getaddrinfo() is reentrant and allows programs to eliminate IPv4-versus-IPv6 dependencies. The addrinfo structure used by getaddrinfo() contains the following fields: As you probably already know, this Tuesday a potentially catastrophic flaw has been identified on glibc function called getaddrinfo(), which performs domain name lookups, contains a buffer overflo Linux socket 網路程式設計 現在已經不用了。[如果你想要設計能通用於 IPv4 與 IPv6 的程式也不用！]在現代，你有 getaddrinfo() Jan 26, 2020 · As you can see, the uname command when used without any switches only returns the kernel name i.e., Linux for my system. Get the Linux Kernel Name. When you precisely want the command to print the kernel name, you will use the following command: $ uname -s. Output: The above output has displayed Linux as my kernel name. Get the Linux Kernel Release Function Name: getaddrinfo . Function Signature: socket.getaddrinfo(host, port, family=0, type=0, proto=0, flags=0) Function Overview: If we know a network service by host name like example.org or the IP address of the network service either in form of IPv4 or IPv6 along with the port number of the network service, getaddrinfo() will return a list of tuples containing information about socket
Jul 06, 2012
Example of getaddrinfo() program. · GitHub May 12, 2020 getaddrinfo.c source code [glibc/sysdeps/posix/getaddrinfo Browse the source code of glibc/sysdeps/posix/getaddrinfo.c. 1 /* Host and service name lookups using Name Service Switch modules. 2: Copyright (C) 1996-2019 Free
The getaddrinfo() function shall translate the name of a service location (for example, a host name) and/or a service name and shall return a set of socket addresses and associated information to be used in creating a socket with which to address the specified service. Note: In many cases it is implemented by the Domain Name System, as documented in RFC 1034, RFC 1035, and RFC 1886.
0011000: getaddrinfo() causes SIGSEGV in a multi-threaded program when linked statically: Linux 3.10.0-327.18.2.el7.x86_64 Architecture: x86-64 cat /etc/*release May 04, 2019 · Technically: The FQDN is the name getaddrinfo returns for the hostname returned by gethostname. The DNS domain name is the part after the first dot. Therefore it depends on the configuration of the resolver (usually in /etc/host.conf) how you can change it.