Chapter 38. tcp/ip library reference, Getdomainname, Tcp/ip library reference – Comtrol eCos User Manual

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Chapter 38. TCP/IP Library Reference

getdomainname

GETDOMAINNAME(3)

System Library Functions Manual

GETDOMAINNAME(3)

NAME

getdomainname, setdomainname - get/set YP domain name of current host

SYNOPSIS

#include

unistd.h>

int

getdomainname(char *name, size_t namelen);

int

setdomainname(const char *name, size_t namelen);

DESCRIPTION

The getdomainname() function returns the YP domain name for the current

processor, as previously set by setdomainname().

The parameter namelen

specifies the size of the name array.

If insufficient space is provided,

the returned name is truncated.

The returned name is always null termi-

nated.

setdomainname() sets the domain name of the host machine to be name,

which has length namelen.

This call is restricted to the superuser and

is normally used only when the system is bootstrapped.

RETURN VALUES

If the call succeeds a value of 0 is returned.

If the call fails, a

value of -1 is returned and an error code is placed in the global vari-

able errno.

ERRORS

The following errors may be returned by these calls:

[EFAULT]

The name or namelen parameter gave an invalid address.

[EPERM]

The caller tried to set the domain name and was not

the superuser.