/* getdomainname emulation for systems that doesn't have it.
- Copyright (C) 2003, 2006, 2008 Free Software Foundation, Inc.
+ Copyright (C) 2003, 2006, 2008, 2010-2013 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
/* Specification. */
#include <unistd.h>
+#include <limits.h>
#include <string.h>
#include <errno.h>
+#if HAVE_SYSINFO && HAVE_SYS_SYSTEMINFO_H /* IRIX, OSF/1, Solaris */
+# include <sys/systeminfo.h>
+#endif
+
/* Return the NIS domain name of the machine.
WARNING! The NIS domain name is unrelated to the fully qualified host name
of the machine. It is also unrelated to email addresses.
Return 0 if successful, otherwise set errno and return -1. */
int
getdomainname (char *name, size_t len)
+#undef getdomainname
{
+#if HAVE_GETDOMAINNAME /* Mac OS X, FreeBSD, AIX, IRIX, OSF/1 */
+ extern int getdomainname (char *, int);
+
+ if (len > INT_MAX)
+ len = INT_MAX;
+ return getdomainname (name, (int) len);
+#elif HAVE_SYSINFO && HAVE_SYS_SYSTEMINFO_H && defined SI_SRPC_DOMAIN
+ /* Solaris */
+ int ret;
+
+ /* The third argument is a 'long', but the return value must fit in an
+ 'int', therefore it's better to avoid arguments > INT_MAX. */
+ ret = sysinfo (SI_SRPC_DOMAIN, name, len > INT_MAX ? INT_MAX : len);
+ if (ret < 0)
+ /* errno is set here. */
+ return -1;
+ if (ret > len)
+ {
+ errno = EINVAL;
+ return -1;
+ }
+ return 0;
+#else /* HP-UX, Cygwin, mingw */
const char *result = ""; /* Hardcode your domain name if you want. */
size_t result_len = strlen (result);
if (result_len < len)
name[result_len] = '\0';
return 0;
+#endif
}