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authorUlrich Drepper <drepper@redhat.com>2002-10-09 09:42:48 +0000
committerUlrich Drepper <drepper@redhat.com>2002-10-09 09:42:48 +0000
commit6166815d696407069c33c1f0cad76fb1847e4bc7 (patch)
treed7aaf5fd8551eb6d69fb80863a4a415cfaa9c01a /resolv/res_query.c
parent4c2821faea94c4300fe283f13e4a667f1f73b90b (diff)
downloadglibc-6166815d696407069c33c1f0cad76fb1847e4bc7.tar.gz
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.
Diffstat (limited to 'resolv/res_query.c')
-rw-r--r--resolv/res_query.c20
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)