diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/gethostname.c')
-rw-r--r-- | sysdeps/unix/sysv/linux/gethostname.c | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/gethostname.c b/sysdeps/unix/sysv/linux/gethostname.c new file mode 100644 index 0000000000..4b7720d414 --- /dev/null +++ b/sysdeps/unix/sysv/linux/gethostname.c @@ -0,0 +1,53 @@ +/* Copyright (C) 1992, 1995 Free Software Foundation, Inc. +This file is part of the GNU C Library. + +The GNU C Library is free software; you can redistribute it and/or +modify it under the terms of the GNU Library General Public License as +published by the Free Software Foundation; either version 2 of the +License, or (at your option) any later version. + +The GNU C Library is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +Library General Public License for more details. + +You should have received a copy of the GNU Library General Public +License along with the GNU C Library; see the file COPYING.LIB. If +not, write to the Free Software Foundation, Inc., 675 Mass Ave, +Cambridge, MA 02139, USA. */ + +#include <errno.h> +#include <string.h> +#include <unistd.h> +#include <sys/utsname.h> + +/* Put the name of the current host in no more than LEN bytes of NAME. + The result is null-terminated if LEN is large enough for the full + name and the terminator. */ +int +__gethostname (name, len) + char *name; + size_t len; +{ + struct utsname buf; + + if (name == NULL) + { + errno = EINVAL; + return -1; + } + + if (uname (&buf)) + return -1; + + if (strlen (buf.nodename) + 1 > len) + { + errno = EINVAL; + return -1; + } + + strcpy (name, buf.nodename); + return 0; +} + +weak_alias (__gethostname, gethostname) |