glibc/support/support_format_herrno.c

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/* Convert a h_errno error code to a string.
Copyright (C) 2016-2017 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 <support/format_nss.h>
#include <support/support.h>
char *
support_format_herrno (int code)
{
const char *errstr;
switch (code)
{
case HOST_NOT_FOUND:
errstr = "HOST_NOT_FOUND";
break;
case NO_ADDRESS:
errstr = "NO_ADDRESS";
break;
case NO_RECOVERY:
errstr = "NO_RECOVERY";
break;
case TRY_AGAIN:
errstr = "TRY_AGAIN";
break;
default:
return xasprintf ("<invalid h_errno value %d>\n", code);
}
return xstrdup (errstr);
}