rh62-12-glibc-2.1.3-maxpacket.patch

linux下编译交叉工具链的工具源码

--- libc/resolv/nss_dns/dns-host.c.jj	Tue Sep 14 03:05:08 1999
+++ libc/resolv/nss_dns/dns-host.c	Thu Oct 10 13:07:33 2002
@@ -129,9 +129,10 @@ _nss_dns_gethostbyname2_r (const char *n
 			   char *buffer, size_t buflen, int *errnop,
 			   int *h_errnop)
 {
-  querybuf host_buffer;
+  querybuf *host_buffer;
   int size, type, n;
   const char *cp;
+  enum nss_status status;
 
   switch (af) {
   case AF_INET:
@@ -159,16 +160,25 @@ _nss_dns_gethostbyname2_r (const char *n
   if (strchr (name, '.') == NULL && (cp = __hostalias (name)) != NULL)
     name = cp;
 
-  n = res_search (name, C_IN, type, host_buffer.buf, sizeof (host_buffer.buf));
+  host_buffer = (querybuf *) malloc (sizeof (*host_buffer));
+  if (host_buffer == NULL) {
+    *errnop = ENOMEM;
+    return NSS_STATUS_UNAVAIL;
+  }
+
+  n = res_search (name, C_IN, type, host_buffer->buf, sizeof (host_buffer->buf));
   if (n < 0)
     {
       *h_errnop = h_errno;
       *errnop = *h_errnop == TRY_AGAIN ? EAGAIN : ENOENT;
+      free (host_buffer);
       return errno == ECONNREFUSED ? NSS_STATUS_UNAVAIL : NSS_STATUS_NOTFOUND;
     }
 
-  return getanswer_r (&host_buffer, n, name, type, result, buffer, buflen,
-		      errnop, h_errnop);
+  status = getanswer_r (host_buffer, n, name, type, result, buffer, buflen,
+			errnop, h_errnop);
+  free (host_buffer);
+  return status; 
 }
 
 
@@ -205,7 +215,7 @@ _nss_dns_gethostbyaddr_r (const char *ad
     char *h_addr_ptrs[MAX_NR_ADDRS + 1];
     char linebuffer[0];
   } *host_data = (struct host_data *) buffer;
-  querybuf host_buffer;
+  querybuf *host_buffer;
   char qbuf[MAXDNAME+1], *qp;
   size_t size;
   int n, status;
@@ -257,17 +267,25 @@ _nss_dns_gethostbyaddr_r (const char *ad
       /* Cannot happen.  */
     }
 
-  n = res_query (qbuf, C_IN, T_PTR, (u_char *)host_buffer.buf,
-		 sizeof host_buffer);
+  host_buffer = (querybuf *) malloc (sizeof (*host_buffer));
+  if (host_buffer == NULL) {
+    *errnop = ENOMEM;
+    return NSS_STATUS_UNAVAIL;
+  }
+
+  n = res_query (qbuf, C_IN, T_PTR, host_buffer->buf,
+		 sizeof (host_buffer->buf));
   if (n < 0)
     {
       *h_errnop = h_errno;
       *errnop = errno;
+      free (host_buffer);
       return errno == ECONNREFUSED ? NSS_STATUS_UNAVAIL : NSS_STATUS_NOTFOUND;
     }
 
-  status = getanswer_r (&host_buffer, n, qbuf, T_PTR, result, buffer, buflen,
+  status = getanswer_r (host_buffer, n, qbuf, T_PTR, result, buffer, buflen,
 			errnop, h_errnop);
+  free (host_buffer);
   if (status != NSS_STATUS_SUCCESS)
     {
       *h_errnop = h_errno;
--- libc/resolv/nss_dns/dns-network.c.jj	Wed Jun 30 12:01:14 1999
+++ libc/resolv/nss_dns/dns-network.c	Thu Oct 10 13:09:49 2002
@@ -113,24 +113,36 @@ _nss_dns_getnetbyname_r (const char *nam
 			 char *buffer, size_t buflen, int *errnop)
 {
   /* Return entry for network with NAME.  */
-  querybuf net_buffer;
+  querybuf *net_buffer;
   int anslen;
   char *qbuf;
+  enum nss_status status;
 
   qbuf = strdupa (name);
-  anslen = res_search (qbuf, C_IN, T_PTR, (u_char *) &net_buffer,
-		       sizeof (querybuf));
+
+  net_buffer = (querybuf *) malloc (sizeof (*net_buffer));
+  if (net_buffer == NULL)
+    {
+      *errnop = ENOMEM;
+      return NSS_STATUS_UNAVAIL;
+    }
+
+  anslen = res_search (qbuf, C_IN, T_PTR, net_buffer->buf,
+		       sizeof (net_buffer->buf));
   if (anslen < 0)
     {
       /* Nothing found.  */
       *errnop = errno;
+      free (net_buffer);
       return (errno == ECONNREFUSED
 	      || errno == EPFNOSUPPORT
 	      || errno == EAFNOSUPPORT)
 	? NSS_STATUS_UNAVAIL : NSS_STATUS_NOTFOUND;
     }
 
-  return getanswer_r (&net_buffer, anslen, result, buffer, buflen, BYNAME);
+  status = getanswer_r (net_buffer, anslen, result, buffer, buflen, BYNAME);
+  free (net_buffer);
+  return status;
 }
 
 
@@ -140,7 +152,7 @@ _nss_dns_getnetbyaddr_r (long net, int t
 {
   /* Return entry for network with NAME.  */
   enum nss_status status;
-  querybuf net_buffer;
+  querybuf *net_buffer;
   unsigned int net_bytes[4];
   char qbuf[MAXDNAME];
   int cnt, anslen;
@@ -176,19 +188,28 @@ _nss_dns_getnetbyaddr_r (long net, int t
       break;
     }
 
-  anslen = res_query (qbuf, C_IN, T_PTR, (u_char *) &net_buffer,
-		      sizeof (querybuf));
+  net_buffer = (querybuf *) malloc (sizeof (*net_buffer));
+  if (net_buffer == NULL)
+    {
+      *errnop = ENOMEM;
+      return NSS_STATUS_UNAVAIL;
+    }
+
+  anslen = res_query (qbuf, C_IN, T_PTR, net_buffer->buf,
+		      sizeof (net_buffer->buf));
   if (anslen < 0)
     {
       /* Nothing found.  */
       *errnop = errno;
+      free (net_buffer);
       return (errno == ECONNREFUSED
 	      || errno == EPFNOSUPPORT
 	      || errno == EAFNOSUPPORT)
 	? NSS_STATUS_UNAVAIL : NSS_STATUS_NOTFOUND;
     }
 
-  status = getanswer_r (&net_buffer, anslen, result, buffer, buflen, BYADDR);
+  status = getanswer_r (net_buffer, anslen, result, buffer, buflen, BYADDR);
+  free (net_buffer);
   if (status == NSS_STATUS_SUCCESS)
     {
       /* Strip trailing zeros.  */
--- libc/resolv/res_query.c.jj	Wed Jun 30 12:01:06 1999
+++ libc/resolv/res_query.c	Thu Oct 10 13:01:12 2002
@@ -106,7 +106,7 @@ res_query(name, class, type, answer, ans
 	u_char *answer;		/* buffer to put answer */
 	int anslen;		/* size of answer buffer */
 {
-	u_char buf[MAXPACKET];
+	u_char *buf;
 	register HEADER *hp = (HEADER *) answer;
 	int n;
 
@@ -121,17 +121,25 @@ res_query(name, class, type, answer, ans
 		printf(";; res_query(%s, %d, %d)\n", name, class, type);
 #endif
 
+	buf = malloc (MAXPACKET);
+	if (buf == NULL) {
+		__set_h_errno (NETDB_INTERNAL);
+		return -1;
+	}
+
 	n = res_mkquery(QUERY, name, class, type, NULL, 0, NULL,
-			buf, sizeof(buf));
+			buf, MAXPACKET);
 	if (n <= 0) {
 #ifdef DEBUG
 		if (_res.options & RES_DEBUG)
 			printf(";; res_query: mkquery failed\n");
 #endif
 		__set_h_errno (NO_RECOVERY);
+		free (buf);
 		return (n);
 	}
 	n = res_send(buf, n, answer, anslen);
+	free (buf);
 	if (n < 0) {
 #ifdef DEBUG
 		if (_res.options & RES_DEBUG)
--- libc/resolv/gethnamaddr.c.jj	Tue Dec  7 11:50:36 1999
+++ libc/resolv/gethnamaddr.c	Thu Oct 10 15:05:50 2002
@@ -512,10 +512,11 @@ gethostbyname2(name, af)
 	const char *name;
 	int af;
 {
-	querybuf buf;
+	querybuf *buf;
 	register const char *cp;
 	char *bp;
 	int n, size, type, len;
+	struct hostent *ret;
 	extern struct hostent *_gethtbyname2();
 
 	if ((_res.options & RES_INIT) == 0 && res_init() == -1) {
@@ -617,13 +618,22 @@ gethostbyname2(name, af)
 				break;
 		}
 
-	if ((n = res_search(name, C_IN, type, buf.buf, sizeof(buf.buf))) < 0) {
+	buf = (querybuf *) malloc (sizeof (*buf));
+	if (buf == NULL) {
+		__set_h_errno (NETDB_INTERNAL);
+		return NULL;
+	}
+
+	if ((n = res_search(name, C_IN, type, buf->buf, sizeof(buf->buf))) < 0) {
+		free (buf);
 		dprintf("res_search failed (%d)\n", n);
 		if (errno == ECONNREFUSED)
 			return (_gethtbyname2(name, af));
 		return (NULL);
 	}
-	return (getanswer(&buf, n, name, type));
+	ret = getanswer(buf, n, name, type);
+	free (buf);
+	return ret;
 }
 
 struct hostent *
@@ -636,7 +646,7 @@ gethostbyaddr(addr, len, af)
 	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 };
 	int n, size;
-	querybuf buf;
+	querybuf *buf;
 	register struct hostent *hp;
 	char qbuf[MAXDNAME+1], *qp;
 #ifdef SUNSECURITY
@@ -697,14 +707,24 @@ gethostbyaddr(addr, len, af)
 	default:
 		abort();
 	}
-	n = res_query(qbuf, C_IN, T_PTR, (u_char *)buf.buf, sizeof buf.buf);
+
+	buf = (querybuf *) malloc (sizeof (*buf));
+	if (buf == NULL) {
+		__set_h_errno (NETDB_INTERNAL);
+		return NULL;
+	}
+
+	n = res_query(qbuf, C_IN, T_PTR, buf->buf, sizeof buf->buf);
 	if (n < 0) {
+		free (buf);
 		dprintf("res_query failed (%d)\n", n);
 		if (errno == ECONNREFUSED)
 			return (_gethtbyaddr(addr, len, af));
 		return (NULL);
 	}
-	if (!(hp = getanswer(&buf, n, qbuf, T_PTR)))
+	hp = getanswer(buf, n, qbuf, T_PTR);
+	free (buf);
+	if (!hp)
 		return (NULL);	/* h_errno was set by getanswer() */
 #ifdef SUNSECURITY
 	if (af == AF_INET) {
--- libc/resolv/getnetnamadr.c.jj	Wed Jun 30 12:00:50 1999
+++ libc/resolv/getnetnamadr.c	Thu Oct 10 13:14:01 2002
@@ -210,7 +210,7 @@ getnetbyaddr(net, net_type)
 {
 	unsigned int netbr[4];
 	int nn, anslen;
-	querybuf buf;
+	querybuf *buf;
 	char qbuf[MAXDNAME];
 	u_int32_t net2;		/* Changed from unsigned long --roland */
 	struct netent *net_entry;
@@ -236,8 +236,15 @@ getnetbyaddr(net, net_type)
 		    netbr[1], netbr[0]);
 		break;
 	}
-	anslen = res_query(qbuf, C_IN, T_PTR, (u_char *)&buf, sizeof(buf));
+
+	buf = (querybuf *) malloc (sizeof (*buf));
+	if (buf == NULL) {
+		return NULL;
+	}
+
+	anslen = res_query(qbuf, C_IN, T_PTR, buf->buf, sizeof(buf->buf));
 	if (anslen < 0) {
+		free (buf);
 #ifdef DEBUG
 		if (_res.options & RES_DEBUG)
 			printf("res_query failed\n");
@@ -246,7 +253,8 @@ getnetbyaddr(net, net_type)
 			return (_getnetbyaddr(net, net_type));
 		return (NULL);
 	}
-	net_entry = getnetanswer(&buf, anslen, BYADDR);
+	net_entry = getnetanswer(buf, anslen, BYADDR);
+	free (buf);
 	if (net_entry) {
 		unsigned u_net = net;	/* maybe net should be unsigned ? */
 
@@ -264,7 +272,7 @@ getnetbyname(net)
 	register const char *net;
 {
 	int anslen;
-	querybuf buf;
+	querybuf *buf;
 	char qbuf[MAXDNAME];
 	struct netent *net_entry;
 
@@ -273,8 +281,13 @@ getnetbyname(net)
 		return (NULL);
 	}
 	strcpy(&qbuf[0], net);
-	anslen = res_search(qbuf, C_IN, T_PTR, (u_char *)&buf, sizeof(buf));
+	buf = (querybuf *) malloc (sizeof (*buf));
+	if (buf == NULL) {
+		return NULL;
+	}
+	anslen = res_search(qbuf, C_IN, T_PTR, buf->buf, sizeof(buf->buf));
 	if (anslen < 0) {
+		free (buf);
 #ifdef DEBUG
 		if (_res.options & RES_DEBUG)
 			printf("res_query failed\n");
@@ -283,7 +296,8 @@ getnetbyname(net)
 			return (_getnetbyname(net));
 		return (_getnetbyname(net));
 	}
-	net_entry = getnetanswer(&buf, anslen, BYNAME);
+	net_entry = getnetanswer(buf, anslen, BYNAME);
+	free (buf);
 	if (net_entry)
 		return (net_entry);
 	return (_getnetbyname(net));
--- libc/glibc-compat/nss_dns/dns-host.c.jj	Mon Jan  3 20:07:08 2000
+++ libc/glibc-compat/nss_dns/dns-host.c	Thu Oct 10 12:46:24 2002
@@ -126,9 +126,10 @@ enum nss_status
 _nss_dns_gethostbyname2_r (const char *name, int af, struct hostent *result,
 			   char *buffer, size_t buflen, int *h_errnop)
 {
-  querybuf host_buffer;
+  querybuf *host_buffer;
   int size, type, n;
   const char *cp;
+  enum nss_status status;
 
   switch (af) {
   case AF_INET:
@@ -156,15 +157,22 @@ _nss_dns_gethostbyname2_r (const char *n
   if (strchr (name, '.') == NULL && (cp = __hostalias (name)) != NULL)
     name = cp;
 
-  n = res_search (name, C_IN, type, host_buffer.buf, sizeof (host_buffer.buf));
+  host_buffer = (querybuf *) malloc (sizeof (querybuf));
+  if (host_buffer == NULL)
+    return NSS_STATUS_UNAVAIL;
+
+  n = res_search (name, C_IN, type, host_buffer->buf, sizeof (host_buffer->buf));
   if (n < 0)
     {
       *h_errnop = h_errno;
+      free (host_buffer);
       return errno == ECONNREFUSED ? NSS_STATUS_UNAVAIL : NSS_STATUS_NOTFOUND;
     }
 
-  return getanswer_r (&host_buffer, n, name, type, result, buffer, buflen,
-		      h_errnop);
+  status = getanswer_r (host_buffer, n, name, type, result, buffer, buflen,
+			h_errnop);
+  free (host_buffer);
+  return status;
 }
 
 
@@ -200,7 +208,7 @@ _nss_dns_gethostbyaddr_r (const char *ad
     char *h_addr_ptrs[MAX_NR_ADDRS + 1];
     char linebuffer[0];
   } *host_data = (struct host_data *) buffer;
-  querybuf host_buffer;
+  querybuf *host_buffer;
   char qbuf[MAXDNAME+1], *qp;
   int size, n, status;
 
@@ -251,16 +259,22 @@ _nss_dns_gethostbyaddr_r (const char *ad
       /* Cannot happen.  */
     }
 
-  n = res_query (qbuf, C_IN, T_PTR, (u_char *)host_buffer.buf,
-		 sizeof host_buffer);
+  host_buffer = (querybuf *) malloc (sizeof (querybuf));
+  if (host_buffer == NULL)
+    return NSS_STATUS_UNAVAIL;
+
+  n = res_query (qbuf, C_IN, T_PTR, host_buffer->buf,
+		 sizeof (host_buffer->buf));
   if (n < 0)
     {
       *h_errnop = h_errno;
+      free (host_buffer);
       return errno == ECONNREFUSED ? NSS_STATUS_UNAVAIL : NSS_STATUS_NOTFOUND;
     }
 
-  status = getanswer_r (&host_buffer, n, qbuf, T_PTR, result, buffer, buflen,
+  status = getanswer_r (host_buffer, n, qbuf, T_PTR, result, buffer, buflen,
 			h_errnop);
+  free (host_buffer);
   if (status != NSS_STATUS_SUCCESS)
     {
       *h_errnop = h_errno;
--- libc/glibc-compat/nss_dns/dns-network.c.jj	Mon Jan  3 20:07:08 2000
+++ libc/glibc-compat/nss_dns/dns-network.c	Thu Oct 10 12:46:24 2002
@@ -107,21 +107,32 @@ _nss_dns_getnetbyname_r (const char *nam
 			 char *buffer, size_t buflen)
 {
   /* Return entry for network with NAME.  */
-  querybuf net_buffer;
+  querybuf *net_buffer;
   int anslen;
   char *qbuf;
+  enum nss_status status;
 
   qbuf = strdupa (name);
-  anslen = res_search (qbuf, C_IN, T_PTR, (u_char *) &net_buffer,
-		       sizeof (querybuf));
+
+  net_buffer = (querybuf *) malloc (sizeof (querybuf));
+  if (net_buffer == NULL)
+    return NSS_STATUS_UNAVAIL;
+
+  anslen = res_search (qbuf, C_IN, T_PTR, net_buffer->buf,
+		       sizeof (net_buffer->buf));
   if (anslen < 0)
-    /* Nothing found.  */
-    return (errno == ECONNREFUSED
-	    || errno == EPFNOSUPPORT
-	    || errno == EAFNOSUPPORT)
-      ? NSS_STATUS_UNAVAIL : NSS_STATUS_NOTFOUND;
+    {
+      free (net_buffer);
+      /* Nothing found.  */
+      return (errno == ECONNREFUSED
+	      || errno == EPFNOSUPPORT
+	      || errno == EAFNOSUPPORT)
+	      ? NSS_STATUS_UNAVAIL : NSS_STATUS_NOTFOUND;
+    }
 
-  return getanswer_r (&net_buffer, anslen, result, buffer, buflen, BYNAME);
+  status = getanswer_r (net_buffer, anslen, result, buffer, buflen, BYNAME);
+  free (net_buffer);
+  return status;
 }
 
 
@@ -131,7 +142,7 @@ _nss_dns_getnetbyaddr_r (long net, int t
 {
   /* Return entry for network with NAME.  */
   enum nss_status status;
-  querybuf net_buffer;
+  querybuf *net_buffer;
   unsigned int net_bytes[4];
   char qbuf[MAXDNAME];
   int cnt, anslen;
@@ -167,16 +178,24 @@ _nss_dns_getnetbyaddr_r (long net, int t
       break;
     }
 
-  anslen = res_query (qbuf, C_IN, T_PTR, (u_char *) &net_buffer,
-		      sizeof (querybuf));
+  net_buffer = (querybuf *) malloc (sizeof (querybuf));
+  if (net_buffer == NULL)
+    return NSS_STATUS_UNAVAIL;
+
+  anslen = res_query (qbuf, C_IN, T_PTR, net_buffer->buf,
+		      sizeof (net_buffer->buf));
   if (anslen < 0)
-    /* Nothing found.  */
-    return (errno == ECONNREFUSED
-	    || errno == EPFNOSUPPORT
-	    || errno == EAFNOSUPPORT)
-      ? NSS_STATUS_UNAVAIL : NSS_STATUS_NOTFOUND;
+    {
+      free (net_buffer);
+      /* Nothing found.  */
+      return (errno == ECONNREFUSED
+	      || errno == EPFNOSUPPORT
+	      || errno == EAFNOSUPPORT)
+	      ? NSS_STATUS_UNAVAIL : NSS_STATUS_NOTFOUND;
+    }
 
-  status = getanswer_r (&net_buffer, anslen, result, buffer, buflen, BYADDR);
+  status = getanswer_r (net_buffer, anslen, result, buffer, buflen, BYADDR);
+  free (net_buffer);
   if (status == NSS_STATUS_SUCCESS)
     {
       /* Strip trailing zeros.  */