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-rw-r--r--resolv/nss_dns/dns-host.c43
-rw-r--r--resolv/nss_dns/dns-network.c32
2 files changed, 48 insertions, 27 deletions
diff --git a/resolv/nss_dns/dns-host.c b/resolv/nss_dns/dns-host.c
index ed4be67..4d46384 100644
--- a/resolv/nss_dns/dns-host.c
+++ b/resolv/nss_dns/dns-host.c
@@ -120,11 +120,12 @@ typedef union querybuf
static enum nss_status getanswer_r (const querybuf *answer, int anslen,
const char *qname, int qtype,
struct hostent *result, char *buffer,
- size_t buflen, int *h_errnop);
+ size_t buflen, int *errnop, int *h_errnop);
enum nss_status
_nss_dns_gethostbyname2_r (const char *name, int af, struct hostent *result,
- char *buffer, size_t buflen, int *h_errnop)
+ char *buffer, size_t buflen, int *errnop,
+ int *h_errnop)
{
querybuf host_buffer;
int size, type, n;
@@ -141,7 +142,7 @@ _nss_dns_gethostbyname2_r (const char *name, int af, struct hostent *result,
break;
default:
*h_errnop = NETDB_INTERNAL;
- __set_errno (EAFNOSUPPORT);
+ *errnop = EAFNOSUPPORT;
return NSS_STATUS_UNAVAIL;
}
@@ -160,26 +161,28 @@ _nss_dns_gethostbyname2_r (const char *name, int af, struct hostent *result,
if (n < 0)
{
*h_errnop = h_errno;
+ *errnop = errno;
return errno == ECONNREFUSED ? NSS_STATUS_UNAVAIL : NSS_STATUS_NOTFOUND;
}
return getanswer_r (&host_buffer, n, name, type, result, buffer, buflen,
- h_errnop);
+ errnop, h_errnop);
}
enum nss_status
_nss_dns_gethostbyname_r (const char *name, struct hostent *result,
- char *buffer, size_t buflen, int *h_errnop)
+ char *buffer, size_t buflen, int *errnop,
+ int *h_errnop)
{
enum nss_status status = NSS_STATUS_NOTFOUND;
if (_res.options & RES_USE_INET6)
status = _nss_dns_gethostbyname2_r (name, AF_INET6, result, buffer,
- buflen, h_errnop);
+ buflen, errnop, h_errnop);
if (status == NSS_STATUS_NOTFOUND)
status = _nss_dns_gethostbyname2_r (name, AF_INET, result, buffer,
- buflen, h_errnop);
+ buflen, errnop, h_errnop);
return status;
}
@@ -188,7 +191,7 @@ _nss_dns_gethostbyname_r (const char *name, struct hostent *result,
enum nss_status
_nss_dns_gethostbyaddr_r (const char *addr, int len, int af,
struct hostent *result, char *buffer, size_t buflen,
- int *h_errnop)
+ int *errnop, int *h_errnop)
{
static const u_char mapped[] = { 0,0, 0,0, 0,0, 0,0, 0,0, 0xff,0xff };
static const u_char tunnelled[] = { 0,0, 0,0, 0,0, 0,0, 0,0, 0,0 };
@@ -224,13 +227,13 @@ _nss_dns_gethostbyaddr_r (const char *addr, int len, int af,
size = IN6ADDRSZ;
break;
default:
- __set_errno (EAFNOSUPPORT);
+ *errnop = EAFNOSUPPORT;
*h_errnop = NETDB_INTERNAL;
return NSS_STATUS_UNAVAIL;
}
if (size != len)
{
- __set_errno (EAFNOSUPPORT);
+ *errnop = EAFNOSUPPORT;
*h_errnop = NETDB_INTERNAL;
return NSS_STATUS_UNAVAIL;
}
@@ -256,14 +259,16 @@ _nss_dns_gethostbyaddr_r (const char *addr, int len, int af,
if (n < 0)
{
*h_errnop = h_errno;
+ *errnop = errno;
return errno == ECONNREFUSED ? NSS_STATUS_UNAVAIL : NSS_STATUS_NOTFOUND;
}
status = getanswer_r (&host_buffer, n, qbuf, T_PTR, result, buffer, buflen,
- h_errnop);
+ errnop, h_errnop);
if (status != NSS_STATUS_SUCCESS)
{
*h_errnop = h_errno;
+ *errnop = errno;
return status;
}
@@ -292,7 +297,7 @@ _nss_dns_gethostbyaddr_r (const char *addr, int len, int af,
static enum nss_status
getanswer_r (const querybuf *answer, int anslen, const char *qname, int qtype,
struct hostent *result, char *buffer, size_t buflen,
- int *h_errnop)
+ int *errnop, int *h_errnop)
{
struct host_data
{
@@ -344,7 +349,17 @@ getanswer_r (const querybuf *answer, int anslen, const char *qname, int qtype,
n = dn_expand (answer->buf, end_of_message, cp, bp, linebuflen);
if (n < 0 || (*name_ok) (bp) == 0)
{
- *h_errnop = NO_RECOVERY;
+ if (errno == EMSGSIZE)
+ {
+ /* There is not enough room in the input buffer. */
+ *errnop = ERANGE;
+ *h_errnop = NETDB_INTERNAL;
+ }
+ else
+ {
+ *errnop = errno;
+ *h_errnop = NO_RECOVERY;
+ }
return NSS_STATUS_UNAVAIL;
}
cp += n + QFIXEDSZ;
@@ -358,7 +373,7 @@ getanswer_r (const querybuf *answer, int anslen, const char *qname, int qtype,
n = strlen (bp) + 1; /* for the \0 */
if (n >= MAXHOSTNAMELEN)
{
- __set_h_errno (NO_RECOVERY);
+ *h_errnop = NO_RECOVERY;
return NSS_STATUS_TRYAGAIN;
}
result->h_name = bp;
diff --git a/resolv/nss_dns/dns-network.c b/resolv/nss_dns/dns-network.c
index e9a4b91..6faeec3 100644
--- a/resolv/nss_dns/dns-network.c
+++ b/resolv/nss_dns/dns-network.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1996, 1997 Free Software Foundation, Inc.
+/* Copyright (C) 1996, 1997, 1998 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Extended from original form by Ulrich Drepper <drepper@cygnus.com>, 1996.
@@ -104,7 +104,7 @@ static enum nss_status getanswer_r (const querybuf *answer, int anslen,
enum nss_status
_nss_dns_getnetbyname_r (const char *name, struct netent *result,
- char *buffer, size_t buflen)
+ char *buffer, size_t buflen, int *errnop)
{
/* Return entry for network with NAME. */
querybuf net_buffer;
@@ -115,11 +115,14 @@ _nss_dns_getnetbyname_r (const char *name, struct netent *result,
anslen = res_search (qbuf, C_IN, T_PTR, (u_char *) &net_buffer,
sizeof (querybuf));
if (anslen < 0)
- /* Nothing found. */
- return (errno == ECONNREFUSED
- || errno == EPFNOSUPPORT
- || errno == EAFNOSUPPORT)
- ? NSS_STATUS_UNAVAIL : NSS_STATUS_NOTFOUND;
+ {
+ /* Nothing found. */
+ *errnop = errno;
+ return (errno == ECONNREFUSED
+ || errno == EPFNOSUPPORT
+ || errno == EAFNOSUPPORT)
+ ? NSS_STATUS_UNAVAIL : NSS_STATUS_NOTFOUND;
+ }
return getanswer_r (&net_buffer, anslen, result, buffer, buflen, BYNAME);
}
@@ -127,7 +130,7 @@ _nss_dns_getnetbyname_r (const char *name, struct netent *result,
enum nss_status
_nss_dns_getnetbyaddr_r (long net, int type, struct netent *result,
- char *buffer, size_t buflen)
+ char *buffer, size_t buflen, int *errnop)
{
/* Return entry for network with NAME. */
enum nss_status status;
@@ -170,11 +173,14 @@ _nss_dns_getnetbyaddr_r (long net, int type, struct netent *result,
anslen = res_query (qbuf, C_IN, T_PTR, (u_char *) &net_buffer,
sizeof (querybuf));
if (anslen < 0)
- /* Nothing found. */
- return (errno == ECONNREFUSED
- || errno == EPFNOSUPPORT
- || errno == EAFNOSUPPORT)
- ? NSS_STATUS_UNAVAIL : NSS_STATUS_NOTFOUND;
+ {
+ /* Nothing found. */
+ *errnop = errno;
+ return (errno == ECONNREFUSED
+ || errno == EPFNOSUPPORT
+ || errno == EAFNOSUPPORT)
+ ? NSS_STATUS_UNAVAIL : NSS_STATUS_NOTFOUND;
+ }
status = getanswer_r (&net_buffer, anslen, result, buffer, buflen, BYADDR);
if (status == NSS_STATUS_SUCCESS)