libtirpc/libtirpc-1.1.4-fix-EOF-non-block.patch

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diff -up libtirpc-1.1.4/src/svc_vc.c.orig libtirpc-1.1.4/src/svc_vc.c
--- libtirpc-1.1.4/src/svc_vc.c.orig 2018-08-27 10:06:49.000000000 -0400
+++ libtirpc-1.1.4/src/svc_vc.c 2019-07-24 11:51:32.191485387 -0400
@@ -502,9 +502,14 @@ read_vc(xprtp, buf, len)
cfp = (struct cf_conn *)xprt->xp_p1;
if (cfp->nonblock) {
+ /* Since len == 0 is returned on zero length
+ * read or EOF errno needs to be reset before
+ * the read
+ */
+ errno = 0;
len = read(sock, buf, (size_t)len);
if (len < 0) {
- if (errno == EAGAIN)
+ if (errno == EAGAIN || errno == EWOULDBLOCK)
len = 0;
else
goto fatal_err;
diff -up libtirpc-1.1.4/src/xdr_rec.c.orig libtirpc-1.1.4/src/xdr_rec.c
--- libtirpc-1.1.4/src/xdr_rec.c.orig 2018-08-27 10:06:49.000000000 -0400
+++ libtirpc-1.1.4/src/xdr_rec.c 2019-07-24 11:51:32.191485387 -0400
@@ -61,6 +61,7 @@
#include <rpc/svc.h>
#include <rpc/clnt.h>
#include <stddef.h>
+#include <errno.h>
#include "rpc_com.h"
static bool_t xdrrec_getlong(XDR *, long *);
static bool_t xdrrec_putlong(XDR *, const long *);
@@ -537,7 +538,13 @@ __xdrrec_getrec(xdrs, statp, expectdata)
n = rstrm->readit(rstrm->tcp_handle, rstrm->in_hdrp,
(int)sizeof (rstrm->in_header) - rstrm->in_hdrlen);
if (n == 0) {
- *statp = expectdata ? XPRT_DIED : XPRT_IDLE;
+ /* EAGAIN or EWOULDBLOCK means a zero length
+ * read not an EOF.
+ */
+ if (errno == EAGAIN || errno == EWOULDBLOCK)
+ *statp = XPRT_IDLE;
+ else
+ *statp = expectdata ? XPRT_DIED : XPRT_IDLE;
return FALSE;
}
if (n < 0) {
@@ -564,6 +571,7 @@ __xdrrec_getrec(xdrs, statp, expectdata)
rstrm->in_header &= ~LAST_FRAG;
rstrm->last_frag = TRUE;
}
+ rstrm->in_haveheader = 1;
}
n = rstrm->readit(rstrm->tcp_handle,
@@ -576,7 +584,13 @@ __xdrrec_getrec(xdrs, statp, expectdata)
}
if (n == 0) {
- *statp = expectdata ? XPRT_DIED : XPRT_IDLE;
+ /* EAGAIN or EWOULDBLOCK means a zero length
+ * read not an EOF.
+ */
+ if (errno == EAGAIN || errno == EWOULDBLOCK)
+ *statp = XPRT_IDLE;
+ else
+ *statp = expectdata ? XPRT_DIED : XPRT_IDLE;
return FALSE;
}