gethostbyname linux

gethostbyname () returns a pointer to the hostent structure that contains the host name and address information for the given host name. The declaration of the structure is consistent with the GETHOSTADDR (). Returns the host information

1. In the simplest client/server program, a client is a process and only one connection is initiated, you only need to modify it to allow a client to initiate multiple connections and then use only one connection to send data. First, let's get to

The IP address is essentially a 32-bit unsigned integer that is stored in the following structure1 struct 23 int4 };For historical reasons, although the IP address is just a scalar, it is stored with a struct.Because the host can have different

Glibc gethostbyname Buffer Overflow Vulnerability (CVE-2015-0235) Release date:Updated on: Affected Systems:GNU glibcUnaffected system:The GNU glibc 2.18Description:Bugtraq id: 72325CVE (CAN) ID: CVE-2015-0235 Glibc is the libc library released by

The main is how to use the return structure of two functions. In the GetHostByName function, the return Hostent,linux reference manual is described below:struct hostent { char *h_name; /* official name of host */ char **h_aliases;

I have been reviewing C Programming in Linux over the past two days. In addition to project requirements, I am still preparing for work. Every time I reviewed them, I had a new experience. I used to look at these two functions and thought they would

GNU glibc gethostbyname Buffer Overflow Vulnerability The gethostbyname function of the GNU glibc standard library has a buffer overflow vulnerability. Vulnerability No.: CVE-2015-0235. For details, see here. Glibc is a C library that provides

0. A project was created some time ago, and the corresponding IPaddress needs to be parsed Based on the hostname. This function is called gethostbyname. Find the corresponding function. 1. The general process is as follows: Application header file: #

ObjectiveRecently in the Learning Network programming, this article from my classmate Quake East, this article is also to record the studyGetHostByName ()This function can return the domain name information for a given domain name.Parameters: Domain

Source code-level Unix/Linux General Nic IP address acquisition method These two functions are used: gethostname () and gethostbyname ()   int gethostname(char *name, size_t namelen);Description TheGethostname() Function shall return the standard