Hi Vyom, > I think, it is intentional to handle case where return "hostname" is to large > to > fit in array. if you see the man page(http://man7.org/linux/man- > pages/man2/gethostname.2.html) it says that it is unspecified whether > returned buffer includes a terminating null byte. > > current code will put null in case of large "hostname", What do you think ?
yes, I had read the man page and saw this point of the spec. But exactly for this purpose there's this code: // make sure string is null-terminated hostname[NI_MAXHOST] = '\0'; If we only hand 'NI_MAXHOST' as size value into gethostname, then the function might only write NI_MAXHOST - 1 characters of the hostname into the buffer. Best regards Christoph
