gethostname(3xnet) [opensolaris man page]
gethostname(3XNET) X/Open Networking Services Library Functions gethostname(3XNET) NAME
gethostname - get name of current host SYNOPSIS
cc [ flag ... ] file ... -lxnet [ library ... ] #include <unistd.h> int gethostname(char *name, size_t namelen); DESCRIPTION
The gethostname() function returns the standard host name for the current machine. The namelen argument specifies the size of the array pointed to by the name argument. The returned name is null-terminated, except that if namelen is an insufficient length to hold the host name, then the returned name is truncated and it is unspecified whether the returned name is null-terminated. Host names are limited to 255 bytes. RETURN VALUES
On successful completion, 0 is returned. Otherwise, -1 is returned. ERRORS
No errors are defined. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Interface Stability |Standard | +-----------------------------+-----------------------------+ |MT-Level |MT-Safe | +-----------------------------+-----------------------------+ SEE ALSO
uname(1), gethostid(3C), attributes(5), standards(5) SunOS 5.11 10 Jun 2002 gethostname(3XNET)
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gethostname(3C) Standard C Library Functions gethostname(3C) NAME
gethostname, sethostname - get or set name of current host SYNOPSIS
#include <unistd.h> int gethostname(char *name, int namelen); int sethostname(char *name, int namelen); DESCRIPTION
The gethostname() function returns the standard host name for the current processor, as previously set by sethostname(). The namelen argu- ment specifies the size of the array pointed to by name. The returned name is null-terminated unless insufficient space is provided. The sethostname() function sets the 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. Host names are limited to MAXHOSTNAMELEN characters, currently 256, defined in the <netdb.h> header. RETURN VALUES
Upon successful completion, gethostname() and sethostname() return 0. Otherwise, they return -1 and set errno to indicate the error. ERRORS
The gethostname() and sethostname() functions will fail if: EFAULT The name or namelen argument gave an invalid address. The sethostname() function will fail if: EPERM The {PRIV_SYS_ADMIN} privilege was not asserted in the effective set of the calling process. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Interface Stability |Standard | +-----------------------------+-----------------------------+ |MT-Level |MT-Safe | +-----------------------------+-----------------------------+ SEE ALSO
sysinfo(2), uname(2), gethostid(3C), attributes(5), standards(5) SunOS 5.10 22 Mar 2004 gethostname(3C)