* Copyright 2002-2006, Axel Dörfler, axeld@pinc-software.de. All rights reserved.
* Copyright 2023, Haiku, Inc. All rights reserved.
* Distributed under the terms of the MIT License.
*/
#include <syscalls.h>
#include <errno.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <pwd.h>
#include <errno_private.h>
#include <user_group.h>
char*
getlogin()
{
struct passwd *pw;
pw = getpwuid(getuid());
if (pw)
return pw->pw_name;
__set_errno(ENOMEM);
return NULL;
}
int
getlogin_r(char *name, size_t nameSize)
{
struct passwd* pw = NULL;
struct passwd passwdBuffer;
char passwdStringBuffer[MAX_PASSWD_BUFFER_SIZE];
int status = getpwuid_r(getuid(), &passwdBuffer, passwdStringBuffer,
sizeof(passwdStringBuffer), &pw);
if (status != B_OK)
return status;
if (strnlen(pw->pw_name, LOGIN_NAME_MAX) >= nameSize)
return ERANGE;
memset(name, 0, nameSize);
strlcpy(name, pw->pw_name, LOGIN_NAME_MAX);
return B_OK;
}
char *
cuserid(char *s)
{
if (s != NULL && getlogin_r(s, L_cuserid))
return s;
return getlogin();
}
