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828. [bug] The errno value from recvfrom() could be overwritten

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by logging code. [RT #1293]
This commit is contained in:
Andreas Gustafsson
2001-05-14 18:20:03 +00:00
parent 2510f0bd84
commit fd5847ef09
2 changed files with 10 additions and 5 deletions
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12
lib/isc/unix/socket.c
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@@ -15,7 +15,7 @@
* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/* $Id: socket.c,v 1.198 2001/04/26 23:45:54 gson Exp $ */
/* $Id: socket.c,v 1.199 2001/05/14 18:20:03 gson Exp $ */
#include <config.h>
@@ -861,6 +861,7 @@ doio_recv(isc_socket_t *sock, isc_socketevent_t *dev) {
size_t actual_count;
struct msghdr msghdr;
isc_buffer_t *buffer;
int recv_errno;
#if USE_CMSG
char cmsg[CMSG_BUF_SIZE];
#else
@@ -874,9 +875,10 @@ doio_recv(isc_socket_t *sock, isc_socketevent_t *dev) {
#endif
cc = recvmsg(sock->fd, &msghdr, 0);
recv_errno = errno;
if (cc < 0) {
if (SOFT_ERROR(errno))
if (SOFT_ERROR(recv_errno))
return (DOIO_SOFT);
if (isc_log_wouldlog(isc_lctx, IOEVENT_LEVEL))
@@ -884,10 +886,10 @@ doio_recv(isc_socket_t *sock, isc_socketevent_t *dev) {
isc_msgcat, ISC_MSGSET_SOCKET,
ISC_MSG_DOIORECV,
"doio_recv: recvmsg(%d) %d bytes, err %d/%s",
sock->fd, cc, errno, strerror(errno));
sock->fd, cc, recv_errno, strerror(recv_errno));
#define SOFT_OR_HARD(_system, _isc) \
if (errno == _system) { \
if (recv_errno == _system) { \
if (sock->connected) { \
dev->result = _isc; \
return (DOIO_HARD); \
@@ -895,7 +897,7 @@ doio_recv(isc_socket_t *sock, isc_socketevent_t *dev) {
return (DOIO_SOFT); \
}
#define ALWAYS_HARD(_system, _isc) \
if (errno == _system) { \
if (recv_errno == _system) { \
dev->result = _isc; \
return (DOIO_HARD); \
}