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2004-03-30  Jakub Jelinek  <jakub@redhat.com>

	* nis/nss_nis/nis-service.c (_nss_nis_getservbyname_r): If protocol
	== NULL, try name/tcp and name/udp first before falling back into
	the sequential scanning.  Use services.byname database for
	sequential scanning.
	(_nss_nis_getservbyport_r): Likewise.  Just allocate sizeof (int) * 3
	chars for integer.

	* nis/nss_nis/nis-service.c (_nss_nis_getservbyport_r): Convert
	proto to host by order for snprintf.

	* nss/getent.c (services_keys): Don't implement lookups with
	missing protocol using getservent loop, just pass NULL.
This commit is contained in:
Ulrich Drepper 2004-03-31 00:16:53 +00:00
parent e0dbb48105
commit a70e964ee0
3 changed files with 43 additions and 55 deletions
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15
ChangeLog
View File

@ -1,5 +1,20 @@
2004-03-30 Jakub Jelinek <jakub@redhat.com>
* nis/nss_nis/nis-service.c (_nss_nis_getservbyname_r): If protocol
== NULL, try name/tcp and name/udp first before falling back into
the sequential scanning. Use services.byname database for
sequential scanning.
(_nss_nis_getservbyport_r): Likewise. Just allocate sizeof (int) * 3
chars for integer.
* nis/nss_nis/nis-service.c (_nss_nis_getservbyport_r): Convert
proto to host by order for snprintf.
2004-03-30 Ulrich Drepper <drepper@redhat.com>
* nss/getent.c (services_keys): Don't implement lookups with
missing protocol using getservent loop, just pass NULL.
* sysdeps/unix/sysv/linux/i386/setgroups.c (setgroups): Avoid
comparison with limit if we can rely on the syscall being available.

30
nis/nss_nis/nis-service.c
View File

@ -279,18 +279,21 @@ _nss_nis_getservbyname_r (const char *name, const char *protocol,
return NSS_STATUS_UNAVAIL;
/* If the protocol is given, we could try if our NIS server knows
about services.byservicename map. If yes, we only need one query */
if (protocol != NULL)
about services.byservicename map. If yes, we only need one query.
If the protocol is not given, try first name/tcp, then name/udp
and then fallback to sequential scanning of services.byname map. */
const char *proto = protocol != NULL ? protocol : "tcp";
do
{
char key[strlen (name) + strlen (protocol) + 2];
char key[strlen (name) + strlen (proto) + 2];
char *cp, *result;
size_t keylen, len;
int int_len;
/* key is: "name/protocol" */
/* key is: "name/proto" */
cp = stpcpy (key, name);
*cp++ = '/';
stpcpy (cp, protocol);
stpcpy (cp, proto);
keylen = strlen (key);
status = yperr2nss (yp_match (domain, "services.byservicename", key,
keylen, &result, &int_len));
@ -329,6 +332,7 @@ _nss_nis_getservbyname_r (const char *name, const char *protocol,
return NSS_STATUS_SUCCESS;
}
}
while (protocol == NULL && (proto[0] == 't' ? (proto = "udp") : NULL));
struct ypall_callback ypcb;
struct search_t req;
@ -343,7 +347,7 @@ _nss_nis_getservbyname_r (const char *name, const char *protocol,
req.buflen = buflen;
req.errnop = errnop;
req.status = NSS_STATUS_NOTFOUND;
status = yperr2nss (yp_all (domain, "services.byservicename", &ypcb));
status = yperr2nss (yp_all (domain, "services.byname", &ypcb));
if (status != NSS_STATUS_SUCCESS)
return status;
@ -362,16 +366,19 @@ _nss_nis_getservbyport_r (int port, const char *protocol,
if (yp_get_default_domain (&domain))
return NSS_STATUS_UNAVAIL;
/* If the protocol is given, we only need one query */
if (protocol != NULL)
/* If the protocol is given, we only need one query.
Otherwise try first port/tcp, then port/udp and then fallback
to sequential scanning of services.byname. */
const char *proto = protocol != NULL ? protocol : "tcp";
do
{
char key[100 + strlen (protocol) + 2];
char key[sizeof (int) * 3 + strlen (proto) + 2];
char *result;
size_t keylen, len;
int int_len;
/* key is: "port/protocol" */
keylen = snprintf (key, sizeof (key), "%d/%s", port, protocol);
/* key is: "port/proto" */
keylen = snprintf (key, sizeof (key), "%d/%s", ntohs (port), proto);
status = yperr2nss (yp_match (domain, "services.byname", key,
keylen, &result, &int_len));
len = int_len;
@ -409,6 +416,7 @@ _nss_nis_getservbyport_r (int port, const char *protocol,
return NSS_STATUS_SUCCESS;
}
}
while (protocol == NULL && (proto[0] == 't' ? (proto = "udp") : NULL));
if (port == -1)
return NSS_STATUS_NOTFOUND;

53
nss/getent.c
View File

@ -638,53 +638,18 @@ services_keys (int number, char *key[])
struct servent *serv;
char *proto = strchr (key[i], '/');
if (proto == NULL)
{
setservent (0);
if (isdigit (key[i][0]))
{
int port = htons (atol (key[i]));
while ((serv = getservent ()) != NULL)
if (serv->s_port == port)
{
print_services (serv);
break;
}
}
else
{
int j;
if (proto != NULL)
*proto++ = '\0';
while ((serv = getservent ()) != NULL)
if (strcmp (serv->s_name, key[i]) == 0)
{
print_services (serv);
break;
}
else
for (j = 0; serv->s_aliases[j]; ++j)
if (strcmp (serv->s_aliases[j], key[i]) == 0)
{
print_services (serv);
break;
}
}
endservent ();
}
if (isdigit (key[i][0]))
serv = getservbyport (htons (atol (key[i])), proto);
else
{
*proto++ = '\0';
serv = getservbyname (key[i], proto);
if (isdigit (key[i][0]))
serv = getservbyport (htons (atol (key[i])), proto);
else
serv = getservbyname (key[i], proto);
if (serv == NULL)
result = 2;
else
print_services (serv);
}
if (serv == NULL)
result = 2;
else
print_services (serv);
}
return result;