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net-libs/libtirpc: Revision bump to pull in patch for CVE-2017-8779
This also gets rid of the src_unpack definition, moves to src_prepare and adds a call to epatch_user to src_prepare. Gentoo-Bug: 617472 Package-Manager: Portage-2.3.5, Repoman-2.3.2
This commit is contained in:
Patrick McLean
255
net-libs/libtirpc/files/libtirpc-1.0.1-CVE-2017-8779.patch
Normal file
255
net-libs/libtirpc/files/libtirpc-1.0.1-CVE-2017-8779.patch
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@@ -0,0 +1,255 @@
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diff --git a/src/rpc_generic.c b/src/rpc_generic.c
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index 2f09a8f..589cbd5 100644
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--- a/src/rpc_generic.c
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+++ b/src/rpc_generic.c
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@@ -615,6 +615,9 @@ __rpc_taddr2uaddr_af(int af, const struct netbuf *nbuf)
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switch (af) {
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case AF_INET:
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+ if (nbuf->len < sizeof(*sin)) {
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+ return NULL;
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+ }
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sin = nbuf->buf;
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if (inet_ntop(af, &sin->sin_addr, namebuf, sizeof namebuf)
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== NULL)
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@@ -626,6 +629,9 @@ __rpc_taddr2uaddr_af(int af, const struct netbuf *nbuf)
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break;
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#ifdef INET6
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case AF_INET6:
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+ if (nbuf->len < sizeof(*sin6)) {
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+ return NULL;
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+ }
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sin6 = nbuf->buf;
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if (inet_ntop(af, &sin6->sin6_addr, namebuf6, sizeof namebuf6)
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== NULL)
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@@ -667,6 +673,8 @@ __rpc_uaddr2taddr_af(int af, const char *uaddr)
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port = 0;
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sin = NULL;
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+ if (uaddr == NULL)
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+ return NULL;
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addrstr = strdup(uaddr);
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if (addrstr == NULL)
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return NULL;
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diff --git a/src/rpcb_prot.c b/src/rpcb_prot.c
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index 43fd385..a923c8e 100644
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--- a/src/rpcb_prot.c
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+++ b/src/rpcb_prot.c
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@@ -41,6 +41,7 @@
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#include <rpc/types.h>
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#include <rpc/xdr.h>
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#include <rpc/rpcb_prot.h>
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+#include "rpc_com.h"
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bool_t
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xdr_rpcb(xdrs, objp)
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@@ -53,13 +54,13 @@ xdr_rpcb(xdrs, objp)
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if (!xdr_u_int32_t(xdrs, &objp->r_vers)) {
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return (FALSE);
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}
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- if (!xdr_string(xdrs, &objp->r_netid, (u_int)~0)) {
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+ if (!xdr_string(xdrs, &objp->r_netid, RPC_MAXDATASIZE)) {
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return (FALSE);
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}
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- if (!xdr_string(xdrs, &objp->r_addr, (u_int)~0)) {
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+ if (!xdr_string(xdrs, &objp->r_addr, RPC_MAXDATASIZE)) {
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return (FALSE);
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}
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- if (!xdr_string(xdrs, &objp->r_owner, (u_int)~0)) {
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+ if (!xdr_string(xdrs, &objp->r_owner, RPC_MAXDATASIZE)) {
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return (FALSE);
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}
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return (TRUE);
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@@ -159,19 +160,19 @@ xdr_rpcb_entry(xdrs, objp)
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XDR *xdrs;
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rpcb_entry *objp;
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{
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- if (!xdr_string(xdrs, &objp->r_maddr, (u_int)~0)) {
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+ if (!xdr_string(xdrs, &objp->r_maddr, RPC_MAXDATASIZE)) {
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return (FALSE);
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}
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- if (!xdr_string(xdrs, &objp->r_nc_netid, (u_int)~0)) {
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+ if (!xdr_string(xdrs, &objp->r_nc_netid, RPC_MAXDATASIZE)) {
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return (FALSE);
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}
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if (!xdr_u_int32_t(xdrs, &objp->r_nc_semantics)) {
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return (FALSE);
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}
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- if (!xdr_string(xdrs, &objp->r_nc_protofmly, (u_int)~0)) {
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+ if (!xdr_string(xdrs, &objp->r_nc_protofmly, RPC_MAXDATASIZE)) {
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return (FALSE);
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}
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- if (!xdr_string(xdrs, &objp->r_nc_proto, (u_int)~0)) {
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+ if (!xdr_string(xdrs, &objp->r_nc_proto, RPC_MAXDATASIZE)) {
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return (FALSE);
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}
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return (TRUE);
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@@ -292,7 +293,7 @@ xdr_rpcb_rmtcallres(xdrs, p)
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bool_t dummy;
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struct r_rpcb_rmtcallres *objp = (struct r_rpcb_rmtcallres *)(void *)p;
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- if (!xdr_string(xdrs, &objp->addr, (u_int)~0)) {
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+ if (!xdr_string(xdrs, &objp->addr, RPC_MAXDATASIZE)) {
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return (FALSE);
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}
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if (!xdr_u_int(xdrs, &objp->results.results_len)) {
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@@ -312,6 +313,11 @@ xdr_netbuf(xdrs, objp)
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if (!xdr_u_int32_t(xdrs, (u_int32_t *) &objp->maxlen)) {
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return (FALSE);
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}
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+
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+ if (objp->maxlen > RPC_MAXDATASIZE) {
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+ return (FALSE);
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+ }
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+
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dummy = xdr_bytes(xdrs, (char **)&(objp->buf),
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(u_int *)&(objp->len), objp->maxlen);
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return (dummy);
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diff --git a/src/rpcb_st_xdr.c b/src/rpcb_st_xdr.c
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index 08db745..28e6a48 100644
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--- a/src/rpcb_st_xdr.c
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+++ b/src/rpcb_st_xdr.c
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@@ -37,6 +37,7 @@
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#include <rpc/rpc.h>
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+#include "rpc_com.h"
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/* Link list of all the stats about getport and getaddr */
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@@ -58,7 +59,7 @@ xdr_rpcbs_addrlist(xdrs, objp)
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if (!xdr_int(xdrs, &objp->failure)) {
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return (FALSE);
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}
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- if (!xdr_string(xdrs, &objp->netid, (u_int)~0)) {
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+ if (!xdr_string(xdrs, &objp->netid, RPC_MAXDATASIZE)) {
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return (FALSE);
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}
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@@ -109,7 +110,7 @@ xdr_rpcbs_rmtcalllist(xdrs, objp)
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IXDR_PUT_INT32(buf, objp->failure);
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IXDR_PUT_INT32(buf, objp->indirect);
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}
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- if (!xdr_string(xdrs, &objp->netid, (u_int)~0)) {
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+ if (!xdr_string(xdrs, &objp->netid, RPC_MAXDATASIZE)) {
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return (FALSE);
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}
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if (!xdr_pointer(xdrs, (char **)&objp->next,
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@@ -147,7 +148,7 @@ xdr_rpcbs_rmtcalllist(xdrs, objp)
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objp->failure = (int)IXDR_GET_INT32(buf);
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objp->indirect = (int)IXDR_GET_INT32(buf);
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}
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- if (!xdr_string(xdrs, &objp->netid, (u_int)~0)) {
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+ if (!xdr_string(xdrs, &objp->netid, RPC_MAXDATASIZE)) {
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return (FALSE);
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}
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if (!xdr_pointer(xdrs, (char **)&objp->next,
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@@ -175,7 +176,7 @@ xdr_rpcbs_rmtcalllist(xdrs, objp)
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if (!xdr_int(xdrs, &objp->indirect)) {
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return (FALSE);
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}
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- if (!xdr_string(xdrs, &objp->netid, (u_int)~0)) {
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+ if (!xdr_string(xdrs, &objp->netid, RPC_MAXDATASIZE)) {
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return (FALSE);
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}
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if (!xdr_pointer(xdrs, (char **)&objp->next,
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diff --git a/src/xdr.c b/src/xdr.c
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index f3fb9ad..b9a1558 100644
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--- a/src/xdr.c
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+++ b/src/xdr.c
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@@ -42,8 +42,10 @@
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#include <stdlib.h>
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#include <string.h>
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+#include <rpc/rpc.h>
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#include <rpc/types.h>
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#include <rpc/xdr.h>
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+#include <rpc/rpc_com.h>
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typedef quad_t longlong_t; /* ANSI long long type */
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typedef u_quad_t u_longlong_t; /* ANSI unsigned long long type */
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@@ -53,7 +55,6 @@ typedef u_quad_t u_longlong_t; /* ANSI unsigned long long type */
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*/
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#define XDR_FALSE ((long) 0)
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#define XDR_TRUE ((long) 1)
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-#define LASTUNSIGNED ((u_int) 0-1)
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/*
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* for unit alignment
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@@ -629,6 +630,7 @@ xdr_bytes(xdrs, cpp, sizep, maxsize)
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{
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char *sp = *cpp; /* sp is the actual string pointer */
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u_int nodesize;
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+ bool_t ret, allocated = FALSE;
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/*
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* first deal with the length since xdr bytes are counted
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@@ -652,6 +654,7 @@ xdr_bytes(xdrs, cpp, sizep, maxsize)
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}
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if (sp == NULL) {
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*cpp = sp = mem_alloc(nodesize);
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+ allocated = TRUE;
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}
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if (sp == NULL) {
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warnx("xdr_bytes: out of memory");
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@@ -660,7 +663,14 @@ xdr_bytes(xdrs, cpp, sizep, maxsize)
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/* FALLTHROUGH */
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case XDR_ENCODE:
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- return (xdr_opaque(xdrs, sp, nodesize));
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+ ret = xdr_opaque(xdrs, sp, nodesize);
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+ if ((xdrs->x_op == XDR_DECODE) && (ret == FALSE)) {
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+ if (allocated == TRUE) {
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+ free(sp);
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+ *cpp = NULL;
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+ }
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+ }
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+ return (ret);
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case XDR_FREE:
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if (sp != NULL) {
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@@ -754,6 +764,7 @@ xdr_string(xdrs, cpp, maxsize)
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char *sp = *cpp; /* sp is the actual string pointer */
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u_int size;
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u_int nodesize;
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+ bool_t ret, allocated = FALSE;
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/*
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* first deal with the length since xdr strings are counted-strings
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@@ -793,8 +804,10 @@ xdr_string(xdrs, cpp, maxsize)
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switch (xdrs->x_op) {
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case XDR_DECODE:
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- if (sp == NULL)
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+ if (sp == NULL) {
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*cpp = sp = mem_alloc(nodesize);
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+ allocated = TRUE;
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+ }
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if (sp == NULL) {
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warnx("xdr_string: out of memory");
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return (FALSE);
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@@ -803,7 +816,14 @@ xdr_string(xdrs, cpp, maxsize)
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/* FALLTHROUGH */
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case XDR_ENCODE:
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- return (xdr_opaque(xdrs, sp, size));
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+ ret = xdr_opaque(xdrs, sp, size);
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+ if ((xdrs->x_op == XDR_DECODE) && (ret == FALSE)) {
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+ if (allocated == TRUE) {
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+ free(sp);
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+ *cpp = NULL;
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+ }
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+ }
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+ return (ret);
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case XDR_FREE:
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mem_free(sp, nodesize);
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@@ -823,7 +843,7 @@ xdr_wrapstring(xdrs, cpp)
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XDR *xdrs;
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char **cpp;
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{
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- return xdr_string(xdrs, cpp, LASTUNSIGNED);
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+ return xdr_string(xdrs, cpp, RPC_MAXDATASIZE);
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}
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/*
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60
net-libs/libtirpc/libtirpc-1.0.1-r1.ebuild
Normal file
60
net-libs/libtirpc/libtirpc-1.0.1-r1.ebuild
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@@ -0,0 +1,60 @@
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# Copyright 1999-2017 Gentoo Foundation
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# Distributed under the terms of the GNU General Public License v2
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EAPI="5"
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inherit multilib-minimal toolchain-funcs eutils
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DESCRIPTION="Transport Independent RPC library (SunRPC replacement)"
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HOMEPAGE="http://libtirpc.sourceforge.net/"
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SRC_URI="mirror://sourceforge/${PN}/${P}.tar.bz2
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mirror://gentoo/${PN}-glibc-nfs.tar.xz"
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LICENSE="GPL-2"
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SLOT="0/3" # subslot matches SONAME major
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KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~mips ~ppc ~ppc64 ~s390 ~sh ~sparc ~x86"
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IUSE="ipv6 kerberos static-libs"
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RDEPEND="kerberos? ( >=virtual/krb5-0-r1[${MULTILIB_USEDEP}] )"
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DEPEND="${RDEPEND}
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app-arch/xz-utils
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>=virtual/pkgconfig-0-r1[${MULTILIB_USEDEP}]"
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PATCHES=(
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"${FILESDIR}/${P}-CVE-2017-8779.patch"
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)
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src_prepare() {
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cp -r "${WORKDIR}"/tirpc "${S}"/ || die
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epatch "${PATCHES[@]}"
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epatch_user
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}
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multilib_src_configure() {
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ECONF_SOURCE=${S} \
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econf \
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$(use_enable ipv6) \
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$(use_enable kerberos gssapi) \
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$(use_enable static-libs static)
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}
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multilib_src_install() {
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default
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# libtirpc replaces rpc support in glibc, so we need it in /
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gen_usr_ldscript -a tirpc
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}
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multilib_src_install_all() {
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einstalldocs
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insinto /etc
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doins doc/netconfig
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insinto /usr/include/tirpc
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doins -r "${WORKDIR}"/tirpc/*
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# makes sure that the linking order for nfs-utils is proper, as
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# libtool would inject a libgssglue dependency in the list.
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use static-libs || prune_libtool_files
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}
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