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Diffstat (limited to 'sysdeps/posix/gethostname.c')
-rw-r--r--sysdeps/posix/gethostname.c48
1 files changed, 48 insertions, 0 deletions
diff --git a/sysdeps/posix/gethostname.c b/sysdeps/posix/gethostname.c
new file mode 100644
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--- /dev/null
+++ b/sysdeps/posix/gethostname.c
@@ -0,0 +1,48 @@
+/* Copyright (C) 1992, 1995, 1997, 2000, 2001 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 Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#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;
+ size_t node_len;
+
+ if (uname (&buf))
+ return -1;
+
+ node_len = strlen (buf.nodename) + 1;
+ memcpy (name, buf.nodename, len < node_len ? len : node_len);
+
+ if (node_len > len)
+ {
+ __set_errno (ENAMETOOLONG);
+ return -1;
+ }
+ return 0;
+}
+
+weak_alias (__gethostname, gethostname)