получить имя текущего хоста (get name of current host)
Пролог (Prolog)
This manual page is part of the POSIX Programmer's Manual. The
Linux implementation of this interface may differ (consult the
corresponding Linux manual page for details of Linux behavior),
or the interface may not be implemented on Linux.
Имя (Name)
gethostname — get name of current host
Синопсис (Synopsis)
#include <unistd.h>
int gethostname(char *name, size_t namelen);
Описание (Description)
The gethostname() function shall return the standard host name
for the current machine. The namelen argument shall specify the
size of the array pointed to by the name argument. The returned
name shall be null-terminated, except that if namelen is an
insufficient length to hold the host name, then the returned name
shall be truncated and it is unspecified whether the returned
name is null-terminated.
Host names are limited to {HOST_NAME_MAX} bytes.
Возвращаемое значение (Return value)
Upon successful completion, 0 shall be returned; otherwise, -1
shall be returned.
Ошибки (Error)
No errors are defined.
The following sections are informative.
Примеры (Examples)
None.
Использование в приложениях (Application usage)
None.
Обоснование (Rationale)
None.
Будущие направления (Future directions)
None.
Смотри также (See also)
gethostid(3p), uname(3p)
The Base Definitions volume of POSIX.1‐2017, unistd.h(0p)
