Update.

2002-10-09  Ulrich Drepper  <drepper@redhat.com>

	* Versions.def (libc): Add GLIBC_2.3.1.
	(libpthread): Add GLIBC_2.3.1.

	* include/signal.h: Add libc_hidden_proto for __sigwait, __sigwaitinfo,
	and __sigtimedwait.
	* signal/Versions: Add __sigtimedwait, __sigwait, and __sigwaitinfo.
	* sysdeps/unix/sysv/linux/sigtimedwait.c (__sigtimedwait): Add
	libc_hidden_def.
	* sysdeps/unix/sysv/linux/sigwait.c (__sigwait): Likewise.
	* sysdeps/unix/sysv/linux/sigwaitinfo.c (__sigwaitinfo): Likewise.

	* include/sys/msg.h: Declare __libc_msgrcv and __libc_msgsnd.
	* sysdeps/unix/sysv/linux/msgrcv.c (__msgrcv): Rename to __libc_msgrcv
	and make old name an alias.
	* sysdeps/unix/sysv/linux/msgsnd.c (__msgsnd): Rename to __libc_msgsnd
	and make old name an alias.
	* sysvipc/Versions (libc) [GLIBC_PRIVATE]: Add __libc_msgrcv and
	__libc_msgsnd.

	* include/sys/uio.h: Declare __libc_readv and __libc_writev.
	* misc/Versions (libc) [GLIBC_PRIVATE]: Add __libc_readv and
	__libc_writev.
	* sysdeps/generic/readv.c (__readv): Rename to __libc_readv and make
	old name an alias.
	* sysdeps/posix/readv.c: Likewise
	* sysdeps/unix/sysv/aix/readv.c: Likewise.
	* sysdeps/unix/sysv/linux/readv.c: Likewise.
	* sysdeps/generic/writev.c (__writev): Rename to __libc_writev and make
	old name an alias.
	* sysdeps/posix/writev.c: Likewise
	* sysdeps/unix/sysv/aix/writev.c: Likewise.
	* sysdeps/unix/sysv/linux/writev.c: Likewise.

	* include/sys/wait.h: Declare __waitid.
	* posix/Versions (libc) [GLIBC_PRIVATE]: Add __waitid.
	* sysdeps/generic/waitid.c (waitid): Rename to __waitid and make old
	name an alias.
	* sysdeps/posix/waitid.c: Likewise.
	* sysdeps/unix/sysv/aix/waitid.c: Likewise.

	* sysdeps/unix/sysv/linux/syscalls.list: Add creat syscall.

2002-10-07  Jakub Jelinek  <jakub@redhat.com>

	* include/alloca.h (__libc_use_alloca, __libc_alloca_cutoff): New
	prototypes.
	(__MAX_ALLOCA_CUTOFF): Define.
	Include allocalim.h.
	* resolv/nss_dns/dns-host.c (_nss_dns_gethostbyname2_r,
	_nss_dns_gethostbyaddr_r): Use alloca or malloc to allocate
	host_buffer depending on __libc_use_alloca.
	* resolv/nss_dns/dns-network.c (_nss_dns_getnetbyname_r,
	_nss_dns_getnetbyaddr_r): Use alloca or malloc to allocate
	net_buffer depending on __libc_use_alloca.
	* resolv/res_query.c (res_nquery): Use alloca or malloc to allocate
	buf depending on __libc_use_alloca.
	* resolv/gethnamaddr.c (gethostbyname2, gethostbyaddr): Likewise.
	* stdio-common/vfprintf.c (vfprintf): Use __libc_use_alloca
	instead of hardcoded constants.
	Pass proper size argument to alloca and compute end for wide char
	version.
	* stdio-common/printf_fp.c (__printf_fp): Use __libc_use_alloca
	instead of hardcoded constants.
	* string/strcoll.c (strcoll): Likewise.
	* string/strxfrm.c (strxfrm): Likewise.
	* sysdeps/posix/readv.c (__readv): Likewise.
	* sysdeps/posix/writev.c (__writev): Likewise.
	* sysdeps/generic/allocalim.h: New file.

1 files changed, 17 insertions, 3 deletions

diff --git a/resolv/res_query.c b/resolv/res_query.c
index 866a2bba55..968ba8b4e8 100644
--- a/resolv/res_query.c
+++ b/resolv/res_query.c
@@ -108,28 +108,42 @@ res_nquery(res_state statp,
 	   u_char *answer,	/* buffer to put answer */
 	   int anslen)		/* size of answer buffer */
 {
-	u_char buf[MAXPACKET];
+	u_char *buf;
 	HEADER *hp = (HEADER *) answer;
-	int n;
+	int n, use_malloc = 0;
 
 	hp->rcode = NOERROR;	/* default */
 
+	if (!__libc_use_alloca (MAXPACKET)) {
+		buf = malloc (MAXPACKET);
+		if (buf == NULL) {
+			__set_h_errno (NETDB_INTERNAL);
+			return -1;
+		}
+		use_malloc = 1;
+	} else
+		buf = alloca (MAXPACKET);
+
 #ifdef DEBUG
 	if (statp->options & RES_DEBUG)
 		printf(";; res_query(%s, %d, %d)\n", name, class, type);
 #endif
 
 	n = res_nmkquery(statp, QUERY, name, class, type, NULL, 0, NULL,
-			 buf, sizeof(buf));
+			 buf, MAXPACKET);
 	if (n <= 0) {
 #ifdef DEBUG
 		if (statp->options & RES_DEBUG)
 			printf(";; res_query: mkquery failed\n");
 #endif
 		RES_SET_H_ERRNO(statp, NO_RECOVERY);
+		if (use_malloc)
+			free (buf);
 		return (n);
 	}
 	n = res_nsend(statp, buf, n, answer, anslen);
+	if (use_malloc)
+		free (buf);
 	if (n < 0) {
 #ifdef DEBUG
 		if (statp->options & RES_DEBUG)