enum nss_status
_nss_nis_getnetbyname_r (const char *name, struct netent *net,
char *buffer, size_t buflen, int *herrnop)
{
enum nss_status retval;
struct parser_data *data = (void *) buffer;
char *domain, *result, *p;
int len, parse_res;
if (name == NULL)
{
__set_errno (EINVAL);
*herrnop = NETDB_INTERNAL;
return NSS_STATUS_UNAVAIL;
}
if (yp_get_default_domain (&domain))
return NSS_STATUS_UNAVAIL;
retval = yperr2nss (yp_match (domain, "networks.byname", name,
strlen (name), &result, &len));
if (retval != NSS_STATUS_SUCCESS)
{
if (retval == NSS_STATUS_TRYAGAIN)
{
__set_errno (EAGAIN);
*herrnop = NETDB_INTERNAL;
}
return retval;
}
if ((size_t) (len + 1) > buflen)
{
free (result);
__set_errno (ERANGE);
*herrnop = NETDB_INTERNAL;
return NSS_STATUS_TRYAGAIN;
}
p = strncpy (buffer, result, len);
buffer[len] = '\0';
while (isspace (*p))
++p;
free (result);
parse_res = _nss_files_parse_netent (p, net, data, buflen);
if (!parse_res)
{
*herrnop = NETDB_INTERNAL;
if (errno == ERANGE)
return NSS_STATUS_TRYAGAIN;
else
return NSS_STATUS_NOTFOUND;
}
else
return NSS_STATUS_SUCCESS;
}
static enum nss_status
internal_nis_getnetent_r (struct netent *net, char *buffer, size_t buflen,
int *errnop, int *herrnop)
{
struct parser_data *data = (void *) buffer;
char *domain;
if (__glibc_unlikely (yp_get_default_domain (&domain)))
return NSS_STATUS_UNAVAIL;
/* Get the next entry until we found a correct one. */
int parse_res;
do
{
char *result;
char *outkey;
int len;
int keylen;
int yperr;
if (new_start)
yperr = yp_first (domain, "networks.byname", &outkey, &keylen, &result,
&len);
else
yperr = yp_next (domain, "networks.byname", oldkey, oldkeylen, &outkey,
&keylen, &result, &len);
if (__glibc_unlikely (yperr != YPERR_SUCCESS))
{
enum nss_status retval = yperr2nss (yperr);
if (retval == NSS_STATUS_TRYAGAIN)
{
*herrnop = NETDB_INTERNAL;
*errnop = errno;
}
return retval;
}
if (__glibc_unlikely ((size_t) (len + 1) > buflen))
{
free (result);
*errnop = ERANGE;
*herrnop = NETDB_INTERNAL;
return NSS_STATUS_TRYAGAIN;
}
char *p = strncpy (buffer, result, len);
buffer[len] = '\0';
while (isspace (*p))
++p;
free (result);
parse_res = _nss_files_parse_netent (p, net, data, buflen, errnop);
if (__glibc_unlikely (parse_res == -1))
{
free (outkey);
*herrnop = NETDB_INTERNAL;
*errnop = ERANGE;
return NSS_STATUS_TRYAGAIN;
}
free (oldkey);
oldkey = outkey;
oldkeylen = keylen;
new_start = 0;
}
while (!parse_res);
return NSS_STATUS_SUCCESS;
}
enum nss_status
_nss_nis_getnetbyaddr_r (uint32_t addr, int type, struct netent *net,
char *buffer, size_t buflen, int *errnop,
int *herrnop)
{
char *domain;
if (__glibc_unlikely (yp_get_default_domain (&domain)))
return NSS_STATUS_UNAVAIL;
struct in_addr in = { .s_addr = htonl (addr) };
char *buf = inet_ntoa (in);
size_t blen = strlen (buf);
while (1)
{
char *result;
int len;
int yperr = yp_match (domain, "networks.byaddr", buf, blen, &result,
&len);
if (__glibc_unlikely (yperr != YPERR_SUCCESS))
{
enum nss_status retval = yperr2nss (yperr);
if (retval == NSS_STATUS_NOTFOUND)
{
if (buf[blen - 2] == '.' && buf[blen - 1] == '0')
{
/* Try again, but with trailing dot(s)
removed (one by one) */
buf[blen - 2] = '\0';
blen -= 2;
continue;
}
else
return NSS_STATUS_NOTFOUND;
}
else
{
if (retval == NSS_STATUS_TRYAGAIN)
*errnop = errno;
return retval;
}
}
if (__glibc_unlikely ((size_t) (len + 1) > buflen))
{
free (result);
*errnop = ERANGE;
*herrnop = NETDB_INTERNAL;
return NSS_STATUS_TRYAGAIN;
}
char *p = strncpy (buffer, result, len);
buffer[len] = '\0';
while (isspace (*p))
++p;
free (result);
int parse_res = _nss_files_parse_netent (p, net, (void *) buffer,
buflen, errnop);
if (__glibc_unlikely (parse_res < 1))
{
*herrnop = NETDB_INTERNAL;
if (parse_res == -1)
return NSS_STATUS_TRYAGAIN;
else
return NSS_STATUS_NOTFOUND;
}
else
return NSS_STATUS_SUCCESS;
}
}
enum nss_status
_nss_nis_getnetbyname_r (const char *name, struct netent *net, char *buffer,
size_t buflen, int *errnop, int *herrnop)
{
if (name == NULL)
{
*errnop = EINVAL;
*herrnop = NETDB_INTERNAL;
return NSS_STATUS_UNAVAIL;
}
char *domain;
if (__glibc_unlikely (yp_get_default_domain (&domain)))
return NSS_STATUS_UNAVAIL;
struct parser_data *data = (void *) buffer;
if (buflen < sizeof *data + 1)
{
*herrnop = NETDB_INTERNAL;
*errnop = ERANGE;
return NSS_STATUS_TRYAGAIN;
}
/* Convert name to lowercase. */
size_t namlen = strlen (name);
/* Limit name length to the maximum size of an RPC packet. */
if (namlen > UDPMSGSIZE)
{
*errnop = ERANGE;
return NSS_STATUS_UNAVAIL;
}
char name2[namlen + 1];
size_t i;
for (i = 0; i < namlen; ++i)
name2[i] = _tolower (name[i]);
name2[i] = '\0';
char *result;
int len;
int yperr = yp_match (domain, "networks.byname", name2, namlen, &result,
&len);
if (__glibc_unlikely (yperr != YPERR_SUCCESS))
{
enum nss_status retval = yperr2nss (yperr);
if (retval == NSS_STATUS_TRYAGAIN)
{
*errnop = errno;
*herrnop = NETDB_INTERNAL;
}
return retval;
}
if (__glibc_unlikely ((size_t) (len + 1) > buflen))
{
free (result);
*errnop = ERANGE;
*herrnop = NETDB_INTERNAL;
return NSS_STATUS_TRYAGAIN;
}
char *p = strncpy (buffer, result, len);
buffer[len] = '\0';
while (isspace (*p))
++p;
free (result);
int parse_res = _nss_files_parse_netent (p, net, data, buflen, errnop);
if (__glibc_unlikely (parse_res < 1))
{
*herrnop = NETDB_INTERNAL;
if (parse_res == -1)
return NSS_STATUS_TRYAGAIN;
else
return NSS_STATUS_NOTFOUND;
}
else
return NSS_STATUS_SUCCESS;
}
static enum nss_status
internal_nis_getnetent_r (struct netent *net, char *buffer, size_t buflen,
int *herrnop)
{
struct parser_data *data = (void *) buffer;
char *domain, *result, *outkey;
int len, keylen, parse_res;
if (yp_get_default_domain (&domain))
return NSS_STATUS_UNAVAIL;
/* Get the next entry until we found a correct one. */
do
{
enum nss_status retval;
char *p;
if (new_start)
retval = yperr2nss (yp_first (domain, "networks.byname",
&outkey, &keylen, &result, &len));
else
retval = yperr2nss ( yp_next (domain, "networks.byname",
oldkey, oldkeylen,
&outkey, &keylen, &result, &len));
if (retval != NSS_STATUS_SUCCESS)
{
if (retval == NSS_STATUS_TRYAGAIN)
{
*herrnop = NETDB_INTERNAL;
__set_errno (EAGAIN);
}
return retval;
}
if ((size_t) (len + 1) > buflen)
{
free (result);
__set_errno (ERANGE);
*herrnop = NETDB_INTERNAL;
return NSS_STATUS_TRYAGAIN;
}
p = strncpy (buffer, result, len);
buffer[len] = '\0';
while (isspace (*p))
++p;
free (result);
parse_res = _nss_files_parse_netent (p, net, data, buflen);
if (!parse_res && errno == ERANGE)
{
*herrnop = NETDB_INTERNAL;
return NSS_STATUS_TRYAGAIN;
}
free (oldkey);
oldkey = outkey;
oldkeylen = keylen;
new_start = 0;
}
while (!parse_res);
return NSS_STATUS_SUCCESS;
}
enum nss_status
_nss_nis_getnetbyaddr_r (unsigned long addr, int type, struct netent *net,
char *buffer, size_t buflen, int *herrnop)
{
struct parser_data *data = (void *) buffer;
char *domain;
char *result;
int len;
char buf[256];
int blen;
struct in_addr in;
char *p;
if (yp_get_default_domain (&domain))
return NSS_STATUS_UNAVAIL;
in = inet_makeaddr (addr, 0);
strcpy (buf, inet_ntoa (in));
blen = strlen (buf);
while (1)
{
enum nss_status retval;
int parse_res;
retval = yperr2nss (yp_match (domain, "networks.byaddr", buf,
strlen (buf), &result, &len));
if (retval != NSS_STATUS_SUCCESS)
{
if (retval == NSS_STATUS_NOTFOUND)
{
if (buf[blen - 2] == '.' && buf[blen - 1] == '0')
{
/* Try again, but with trailing dot(s)
removed (one by one) */
buf[blen - 2] = '\0';
blen -= 2;
continue;
}
else
return NSS_STATUS_NOTFOUND;
}
else
{
if (retval == NSS_STATUS_TRYAGAIN)
__set_errno (EAGAIN);
return retval;
}
}
if ((size_t) (len + 1) > buflen)
{
free (result);
__set_errno (ERANGE);
*herrnop = NETDB_INTERNAL;
return NSS_STATUS_TRYAGAIN;
}
p = strncpy (buffer, result, len);
buffer[len] = '\0';
while (isspace (*p))
++p;
free (result);
parse_res = _nss_files_parse_netent (p, net, data, buflen);
if (!parse_res)
{
*herrnop = NETDB_INTERNAL;
if (errno == ERANGE)
return NSS_STATUS_TRYAGAIN;
else
return NSS_STATUS_NOTFOUND;
}
else
return NSS_STATUS_SUCCESS;
}
}
