static char *
getlogin_basic(int *status)
{
static char logname[MAXLOGNAME];
if (_logname_valid == 0) {
#ifdef __NETBSD_SYSCALLS
if (__getlogin(logname, sizeof(logname) - 1) < 0) {
#else
if (_getlogin(logname, sizeof(logname)) < 0) {
#endif
*status = errno;
return (NULL);
}
_logname_valid = 1;
}
*status = 0;
return (*logname ? logname : NULL);
}
char *
getlogin(void)
{
char *result;
int status;
THREAD_LOCK();
result = getlogin_basic(&status);
THREAD_UNLOCK();
return (result);
}
int
getlogin_r(char *name, size_t namelen)
{
size_t len;
int rv;
mutex_lock(&logname_mutex);
if (__logname_valid == 0) {
if (__getlogin(logname, sizeof(logname) - 1) < 0) {
rv = errno;
mutex_unlock(&logname_mutex);
return (rv);
}
__logname_valid = 1;
}
len = strlen(logname) + 1;
if (len > namelen) {
rv = ERANGE;
} else {
strncpy(name, logname, len);
rv = 0;
}
mutex_unlock(&logname_mutex);
return (rv);
}
char *
getlogin()
{
static char logname[MAXLOGNAME + 1];
if (__logname_valid == 0) {
if (__getlogin(logname, sizeof(logname) - 1) < 0)
return ((char *)NULL);
__logname_valid = 1;
}
return (*logname ? logname : (char *)NULL);
}
char *
getlogin(void)
{
char *rv;
mutex_lock(&logname_mutex);
if (__logname_valid == 0) {
if (__getlogin(logname, sizeof(logname) - 1) < 0) {
mutex_unlock(&logname_mutex);
return ((char *)NULL);
}
__logname_valid = 1;
}
rv = (*logname ? logname : (char *)NULL);
mutex_unlock(&logname_mutex);
return rv;
}
