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authorUlrich Drepper <drepper@redhat.com>2004-03-31 00:16:53 +0000
committerUlrich Drepper <drepper@redhat.com>2004-03-31 00:16:53 +0000
commita70e964ee0ec3827b4d24ed3fbff1b614b1a0269 (patch)
tree9483b75961175d2d5f7509d95519b931514a91b8 /nis/nss_nis
parente0dbb4810552c091065080cb61d631354040f826 (diff)
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Update.
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.
Diffstat (limited to 'nis/nss_nis')
-rw-r--r--nis/nss_nis/nis-service.c30
1 files changed, 19 insertions, 11 deletions
diff --git a/nis/nss_nis/nis-service.c b/nis/nss_nis/nis-service.c
index b0a6236b69..84c938aad9 100644
--- a/nis/nss_nis/nis-service.c
+++ b/nis/nss_nis/nis-service.c
@@ -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;