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/*
Copyright (C) 2015-2020, Dirk Krause
SPDX-License-Identifier: BSD-3-Clause
*/
/*
WARNING: This file was generated by the dkct program (see
http://dktools.sourceforge.net/ for details).
Changes you make here will be lost if dkct is run again!
You should modify the original source and run dkct on it.
Original source: dk4hname8.ctr
*/
/** @file dk4hname8.c The dk4hname8 module.
*/
#line 67 "dk4hname8.ctr"
#include "dk4conf.h"
#include "dk4hname8.h"
#if DK4_ON_WINDOWS
#ifndef WINDOWS_H_INCLUDED
#include <windows.h>
#define WINDOWS_H_INCLUDED 1
#endif
#endif
#if DK4_HAVE_UNISTD_H
#ifndef UNISTD_H_INCLUDED
#include <unistd.h>
#define UNISTD_H_INCLUDED 1
#endif
#endif
#if DK4_HAVE_ASSERT_H
#ifndef ASSERT_H_INCLUDED
#include <assert.h>
#define ASSERT_H_INCLUDED 1
#endif
#endif
int
dk4hostname_c8(char *buffer, size_t sz, dk4_er_t *erp)
{
#if DK4_ON_WINDOWS
DWORD s;
#endif
int back = 0;
#if DK4_USE_ASSERT
assert(NULL != buffer);
assert(0 < sz);
#endif
if ((NULL != buffer) && (0 < sz)) {
#if DK4_ON_WINDOWS
if ((dk4_um_t)sz <= (dk4_um_t)0xFFFFFFFFUL) {
s = (DWORD)sz;
if (GetComputerNameExA(ComputerNameNetBIOS, buffer, &s)) {
if ((size_t)s < sz) {
buffer[(size_t)s] = '\0';
back = 1;
} else {
dk4error_set_simple_error_code(erp, DK4_E_BUFFER_TOO_SMALL);
}
} else {
dk4error_set_simple_error_code(erp, DK4_E_NOT_FOUND);
}
} else {
dk4error_set_simple_error_code(erp, DK4_E_INVALID_ARGUMENTS);
}
#else
if (0 == gethostname(buffer, sz)) {
buffer[sz - 1] = '\0';
back = 1;
} else {
dk4error_set_simple_error_code(erp, DK4_E_NOT_FOUND);
}
#endif
if (0 != back) {
/* Strip domain part (if any) */
while('\0' != *buffer) {
if ('.' == *buffer) {
*buffer = '\0';
}
buffer++;
}
}
} else {
dk4error_set_simple_error_code(erp, DK4_E_INVALID_ARGUMENTS);
}
return back;
}
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