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566 lines
15 KiB
566 lines
15 KiB
From 877184f733d13d7db0ec9265a53ede9c30d03ba4 Mon Sep 17 00:00:00 2001
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From: Peter Wagner <tripolar@gmx.at>
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Date: Tue, 19 Feb 2019 20:00:22 +0100
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Subject: [PATCH 2/2] define and use wrapper function nfs_freeaddrinfo
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to handle freeaddrinfo versions that don't tolerate NULL pointers
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Signed-off-by: Peter Wagner <tripolar@gmx.at>
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---
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support/export/client.c | 6 +++---
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support/export/hostname.c | 4 ++--
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support/include/exportfs.h | 11 +++++++++++
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support/nfs/getport.c | 7 ++++---
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support/nfs/svc_create.c | 8 +++++---
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support/nfsidmap/umich_ldap.c | 2 +-
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tests/nsm_client/nsm_client.c | 2 +-
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utils/exportfs/exportfs.c | 10 +++++-----
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utils/gssd/gssd.c | 4 ++--
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utils/gssd/krb5_util.c | 2 +-
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utils/mount/network.c | 7 ++++---
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utils/mount/stropts.c | 3 ++-
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utils/mountd/auth.c | 2 +-
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utils/mountd/cache.c | 10 +++++-----
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utils/mountd/mountd.c | 4 ++--
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utils/mountd/rmtab.c | 2 +-
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utils/nfsd/nfssvc.c | 4 ++--
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utils/statd/hostname.c | 11 ++++++-----
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utils/statd/sm-notify.c | 14 +++++++-------
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19 files changed, 65 insertions(+), 48 deletions(-)
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diff --git a/support/export/client.c b/support/export/client.c
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index baf59c8..a1fba01 100644
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--- a/support/export/client.c
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+++ b/support/export/client.c
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@@ -210,7 +210,7 @@ init_subnetwork(nfs_client *clp)
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set_addrlist(clp, 0, ai->ai_addr);
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family = ai->ai_addr->sa_family;
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- freeaddrinfo(ai);
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+ nfs_freeaddrinfo(ai);
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switch (family) {
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case AF_INET:
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@@ -309,7 +309,7 @@ client_lookup(char *hname, int canonical)
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init_addrlist(clp, ai);
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out:
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- freeaddrinfo(ai);
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+ nfs_freeaddrinfo(ai);
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return clp;
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}
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@@ -674,7 +674,7 @@ check_netgroup(const nfs_client *clp, const struct addrinfo *ai)
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tmp = host_pton(hname);
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if (tmp != NULL) {
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char *cname = host_canonname(tmp->ai_addr);
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- freeaddrinfo(tmp);
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+ nfs_freeaddrinfo(tmp);
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/* The resulting FQDN may be in our netgroup. */
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if (cname != NULL) {
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diff --git a/support/export/hostname.c b/support/export/hostname.c
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index 96c5449..be4d7f6 100644
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--- a/support/export/hostname.c
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+++ b/support/export/hostname.c
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@@ -130,7 +130,7 @@ host_pton(const char *paddr)
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if (!inet4 && ai->ai_addr->sa_family == AF_INET) {
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xlog(D_GENERAL, "%s: failed to convert %s",
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__func__, paddr);
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- freeaddrinfo(ai);
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+ nfs_freeaddrinfo(ai);
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break;
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}
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return ai;
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@@ -292,7 +292,7 @@ host_reliable_addrinfo(const struct sockaddr *sap)
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if (nfs_compare_sockaddr(a->ai_addr, sap))
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break;
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- freeaddrinfo(ai);
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+ nfs_freeaddrinfo(ai);
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ai = NULL;
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if (!a)
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goto out;
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diff --git a/support/include/exportfs.h b/support/include/exportfs.h
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index 4e0d9d1..b81f963 100644
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--- a/support/include/exportfs.h
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+++ b/support/include/exportfs.h
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@@ -47,6 +47,17 @@ typedef struct mclient {
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int m_count;
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} nfs_client;
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+/*
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+ * Some versions of freeaddrinfo(3) do not tolerate being
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+ * passed a NULL pointer.
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+ */
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+static inline void nfs_freeaddrinfo(struct addrinfo *ai)
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+{
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+ if (ai) {
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+ freeaddrinfo(ai);
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+ }
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+}
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+
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static inline const struct sockaddr *
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get_addrlist(const nfs_client *clp, const int i)
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{
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diff --git a/support/nfs/getport.c b/support/nfs/getport.c
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index 081594c..26ec85e 100644
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--- a/support/nfs/getport.c
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+++ b/support/nfs/getport.c
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@@ -47,6 +47,7 @@
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#include "sockaddr.h"
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#include "nfsrpc.h"
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+#include "exportfs.h"
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/*
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* Try a local socket first to access the local rpcbind daemon
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@@ -109,7 +110,7 @@ static int nfs_gp_loopback_address(struct sockaddr *sap, socklen_t *salen)
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ret = 1;
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}
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- freeaddrinfo(gai_results);
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+ nfs_freeaddrinfo(gai_results);
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return ret;
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}
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@@ -134,8 +135,8 @@ static in_port_t nfs_gp_getservbyname(const char *service,
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sin = (const struct sockaddr_in *)gai_results->ai_addr;
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port = sin->sin_port;
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-
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- freeaddrinfo(gai_results);
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+
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+ nfs_freeaddrinfo(gai_results);
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return port;
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}
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diff --git a/support/nfs/svc_create.c b/support/nfs/svc_create.c
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index ef7ff05..d0b747b 100644
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--- a/support/nfs/svc_create.c
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+++ b/support/nfs/svc_create.c
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@@ -39,6 +39,8 @@
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#include <rpc/rpc.h>
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#include <rpc/svc.h>
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+#include "exportfs.h"
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+
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#ifdef HAVE_TCP_WRAPPER
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#include "tcpwrapper.h"
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#endif
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@@ -273,7 +275,7 @@ svc_create_nconf_rand_port(const char *name, const rpcprog_t program,
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bindaddr.qlen = SOMAXCONN;
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xprt = svc_tli_create(RPC_ANYFD, nconf, &bindaddr, 0, 0);
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- freeaddrinfo(ai);
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+ nfs_freeaddrinfo(ai);
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if (xprt == NULL) {
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xlog(L_ERROR, "Failed to create listener xprt "
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"(%s, %u, %s)", name, version, nconf->nc_netid);
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@@ -364,11 +366,11 @@ svc_create_nconf_fixed_port(const char *name, const rpcprog_t program,
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svc_create_cache_xprt(xprt);
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- freeaddrinfo(ai);
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+ nfs_freeaddrinfo(ai);
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return 1;
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out_free:
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- freeaddrinfo(ai);
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+ nfs_freeaddrinfo(ai);
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return 0;
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}
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diff --git a/support/nfsidmap/umich_ldap.c b/support/nfsidmap/umich_ldap.c
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index b661110..b8ee184 100644
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--- a/support/nfsidmap/umich_ldap.c
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+++ b/support/nfsidmap/umich_ldap.c
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@@ -1089,7 +1089,7 @@ get_canonical_hostname(const char *inname)
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return_name = strdup (tmphost);
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out_free:
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- freeaddrinfo(ap);
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+ nfs_freeaddrinfo(ap);
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out_err:
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return return_name;
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}
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diff --git a/tests/nsm_client/nsm_client.c b/tests/nsm_client/nsm_client.c
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index 0fa3422..8dc0591 100644
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--- a/tests/nsm_client/nsm_client.c
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+++ b/tests/nsm_client/nsm_client.c
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@@ -243,7 +243,7 @@ nsm_client_get_rpcclient(const char *node)
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printf("RPC client creation failed\n");
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}
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out:
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- freeaddrinfo(ai);
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+ nfs_freeaddrinfo(ai);
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return client;
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}
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diff --git a/utils/exportfs/exportfs.c b/utils/exportfs/exportfs.c
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index cd3c979..333eadc 100644
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--- a/utils/exportfs/exportfs.c
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+++ b/utils/exportfs/exportfs.c
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@@ -282,7 +282,7 @@ exportfs_parsed(char *hname, char *path, char *options, int verbose)
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validate_export(exp);
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out:
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- freeaddrinfo(ai);
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+ nfs_freeaddrinfo(ai);
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}
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static int exportfs_generic(char *arg, char *options, int verbose)
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@@ -395,7 +395,7 @@ unexportfs_parsed(char *hname, char *path, int verbose)
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if (!success)
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xlog(L_ERROR, "Could not find '%s:%s' to unexport.", hname, path);
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- freeaddrinfo(ai);
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+ nfs_freeaddrinfo(ai);
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}
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static int unexportfs_generic(char *arg, int verbose)
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@@ -588,7 +588,7 @@ address_list(const char *hostname)
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if (ai != NULL) {
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/* @hostname was a presentation address */
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cname = host_canonname(ai->ai_addr);
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- freeaddrinfo(ai);
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+ nfs_freeaddrinfo(ai);
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if (cname != NULL)
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goto out;
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}
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@@ -639,8 +639,8 @@ matchhostname(const char *hostname1, const char *hostname2)
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}
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out:
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- freeaddrinfo(results1);
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- freeaddrinfo(results2);
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+ nfs_freeaddrinfo(results1);
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+ nfs_freeaddrinfo(results2);
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return result;
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}
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diff --git a/utils/gssd/gssd.c b/utils/gssd/gssd.c
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index 2e92f28..7eeb05f 100644
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--- a/utils/gssd/gssd.c
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+++ b/utils/gssd/gssd.c
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@@ -172,14 +172,14 @@ gssd_addrstr_to_sockaddr(struct sockaddr *sa, const char *node, const char *port
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if (sin6->sin6_scope_id) {
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printerr(0, "ERROR: address %s has non-zero "
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"sin6_scope_id!\n", node);
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- freeaddrinfo(res);
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+ nfs_freeaddrinfo(res);
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return false;
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}
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}
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#endif /* IPV6_SUPPORTED */
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memcpy(sa, res->ai_addr, res->ai_addrlen);
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- freeaddrinfo(res);
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+ nfs_freeaddrinfo(res);
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return true;
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}
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diff --git a/utils/gssd/krb5_util.c b/utils/gssd/krb5_util.c
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index eba1aac..adbde93 100644
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--- a/utils/gssd/krb5_util.c
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+++ b/utils/gssd/krb5_util.c
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@@ -587,7 +587,7 @@ get_full_hostname(const char *inhost, char *outhost, int outhostlen)
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goto out;
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}
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strncpy(outhost, addrs->ai_canonname, outhostlen);
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- freeaddrinfo(addrs);
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+ nfs_freeaddrinfo(addrs);
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for (c = outhost; *c != '\0'; c++)
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*c = tolower(*c);
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diff --git a/utils/mount/network.c b/utils/mount/network.c
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index 356f663..fcb0b9f 100644
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--- a/utils/mount/network.c
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+++ b/utils/mount/network.c
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@@ -53,6 +53,7 @@
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#include <net/if.h>
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#include <ifaddrs.h>
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+#include "exportfs.h"
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#include "sockaddr.h"
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#include "xcommon.h"
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#include "mount.h"
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@@ -250,7 +251,7 @@ int nfs_lookup(const char *hostname, const sa_family_t family,
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break;
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}
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- freeaddrinfo(gai_results);
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+ nfs_freeaddrinfo(gai_results);
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return ret;
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}
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@@ -307,7 +308,7 @@ int nfs_string_to_sockaddr(const char *address, struct sockaddr *sap,
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}
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break;
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}
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- freeaddrinfo(gai_results);
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+ nfs_freeaddrinfo(gai_results);
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}
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return ret;
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@@ -1180,7 +1181,7 @@ static int nfs_ca_gai(const struct sockaddr *sap,
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*buflen = gai_results->ai_addrlen;
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memcpy(buf, gai_results->ai_addr, *buflen);
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|
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- freeaddrinfo(gai_results);
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+ nfs_freeaddrinfo(gai_results);
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return 1;
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}
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diff --git a/utils/mount/stropts.c b/utils/mount/stropts.c
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index 0a25b1f..b170552 100644
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--- a/utils/mount/stropts.c
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+++ b/utils/mount/stropts.c
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@@ -35,6 +35,7 @@
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#include <netinet/in.h>
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#include <arpa/inet.h>
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+#include "exportfs.h"
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#include "sockaddr.h"
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#include "xcommon.h"
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#include "mount.h"
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@@ -1268,7 +1269,7 @@ int nfsmount_string(const char *spec, const char *node, char *type,
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} else
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nfs_error(_("%s: internal option parsing error"), progname);
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|
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- freeaddrinfo(mi.address);
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+ nfs_freeaddrinfo(mi.address);
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free(mi.hostname);
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return retval;
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}
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diff --git a/utils/mountd/auth.c b/utils/mountd/auth.c
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index cb4848c..67627f7 100644
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--- a/utils/mountd/auth.c
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+++ b/utils/mountd/auth.c
|
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@@ -297,7 +297,7 @@ auth_authenticate(const char *what, const struct sockaddr *caller,
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what, buf, nfs_get_port(caller), path, epath, error);
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}
|
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|
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- freeaddrinfo(ai);
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+ nfs_freeaddrinfo(ai);
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return exp;
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}
|
|
|
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diff --git a/utils/mountd/cache.c b/utils/mountd/cache.c
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index 7e8d403..2cb370f 100644
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--- a/utils/mountd/cache.c
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|
+++ b/utils/mountd/cache.c
|
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@@ -113,7 +113,7 @@ static void auth_unix_ip(int f)
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ai = client_resolve(tmp->ai_addr);
|
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if (ai) {
|
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client = client_compose(ai);
|
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- freeaddrinfo(ai);
|
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+ nfs_freeaddrinfo(ai);
|
|
}
|
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}
|
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bp = buf; blen = sizeof(buf);
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@@ -133,7 +133,7 @@ static void auth_unix_ip(int f)
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xlog(D_CALL, "auth_unix_ip: client %p '%s'", client, client?client: "DEFAULT");
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|
|
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free(client);
|
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- freeaddrinfo(tmp);
|
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+ nfs_freeaddrinfo(tmp);
|
|
|
|
}
|
|
|
|
@@ -667,7 +667,7 @@ static struct addrinfo *lookup_client_addr(char *dom)
|
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if (tmp == NULL)
|
|
return NULL;
|
|
ret = client_resolve(tmp->ai_addr);
|
|
- freeaddrinfo(tmp);
|
|
+ nfs_freeaddrinfo(tmp);
|
|
return ret;
|
|
}
|
|
|
|
@@ -834,7 +834,7 @@ static void nfsd_fh(int f)
|
|
out:
|
|
if (found_path)
|
|
free(found_path);
|
|
- freeaddrinfo(ai);
|
|
+ nfs_freeaddrinfo(ai);
|
|
free(dom);
|
|
xlog(D_CALL, "nfsd_fh: found %p path %s", found, found ? found->e_path : NULL);
|
|
}
|
|
@@ -1355,7 +1355,7 @@ static void nfsd_export(int f)
|
|
xlog(D_CALL, "nfsd_export: found %p path %s", found, path ? path : NULL);
|
|
if (dom) free(dom);
|
|
if (path) free(path);
|
|
- freeaddrinfo(ai);
|
|
+ nfs_freeaddrinfo(ai);
|
|
}
|
|
|
|
|
|
diff --git a/utils/mountd/mountd.c b/utils/mountd/mountd.c
|
|
index 086c39b..fb7bba4 100644
|
|
--- a/utils/mountd/mountd.c
|
|
+++ b/utils/mountd/mountd.c
|
|
@@ -578,10 +578,10 @@ static void prune_clients(nfs_export *exp, struct exportnode *e)
|
|
*cp = c->gr_next;
|
|
xfree(c->gr_name);
|
|
xfree(c);
|
|
- freeaddrinfo(ai);
|
|
+ nfs_freeaddrinfo(ai);
|
|
continue;
|
|
}
|
|
- freeaddrinfo(ai);
|
|
+ nfs_freeaddrinfo(ai);
|
|
}
|
|
cp = &(c->gr_next);
|
|
}
|
|
diff --git a/utils/mountd/rmtab.c b/utils/mountd/rmtab.c
|
|
index 3ae0dbb..c896243 100644
|
|
--- a/utils/mountd/rmtab.c
|
|
+++ b/utils/mountd/rmtab.c
|
|
@@ -226,7 +226,7 @@ mountlist_list(void)
|
|
ai = host_pton(rep->r_client);
|
|
if (ai != NULL) {
|
|
m->ml_hostname = host_canonname(ai->ai_addr);
|
|
- freeaddrinfo(ai);
|
|
+ nfs_freeaddrinfo(ai);
|
|
}
|
|
}
|
|
if (m->ml_hostname == NULL)
|
|
diff --git a/utils/nfsd/nfssvc.c b/utils/nfsd/nfssvc.c
|
|
index 1e6ffd6..47b1882 100644
|
|
--- a/utils/nfsd/nfssvc.c
|
|
+++ b/utils/nfsd/nfssvc.c
|
|
@@ -25,6 +25,7 @@
|
|
#include "nfslib.h"
|
|
#include "xlog.h"
|
|
#include "nfssvc.h"
|
|
+#include "exportfs.h"
|
|
#include "../mount/version.h"
|
|
|
|
#ifndef NFSD_FS_DIR
|
|
@@ -246,8 +247,7 @@ error:
|
|
close(fd);
|
|
if (sockfd >= 0)
|
|
close(sockfd);
|
|
- if (addrhead)
|
|
- freeaddrinfo(addrhead);
|
|
+ nfs_freeaddrinfo(addrhead);
|
|
return (bounded ? 0 : rc);
|
|
}
|
|
|
|
diff --git a/utils/statd/hostname.c b/utils/statd/hostname.c
|
|
index 8cccdb8..c9e22d3 100644
|
|
--- a/utils/statd/hostname.c
|
|
+++ b/utils/statd/hostname.c
|
|
@@ -35,6 +35,7 @@
|
|
#include <netdb.h>
|
|
#include <arpa/inet.h>
|
|
|
|
+#include "exportfs.h"
|
|
#include "sockaddr.h"
|
|
#include "statd.h"
|
|
#include "xlog.h"
|
|
@@ -203,7 +204,7 @@ statd_canonical_name(const char *hostname)
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|
_Bool result;
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|
result = get_nameinfo(ai->ai_addr, ai->ai_addrlen,
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buf, (socklen_t)sizeof(buf));
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|
- freeaddrinfo(ai);
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|
+ nfs_freeaddrinfo(ai);
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if (!result || buf[0] == '\0')
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|
/* OK to use presentation address,
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* if no reverse map exists */
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@@ -217,7 +218,7 @@ statd_canonical_name(const char *hostname)
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if (ai == NULL)
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return NULL;
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|
strcpy(buf, ai->ai_canonname);
|
|
- freeaddrinfo(ai);
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+ nfs_freeaddrinfo(ai);
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|
|
|
return strdup(buf);
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|
}
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|
@@ -253,7 +254,7 @@ statd_canonical_list(const char *hostname)
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|
_Bool result;
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|
result = get_nameinfo(ai->ai_addr, ai->ai_addrlen,
|
|
buf, (socklen_t)sizeof(buf));
|
|
- freeaddrinfo(ai);
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|
+ nfs_freeaddrinfo(ai);
|
|
if (result)
|
|
goto out;
|
|
}
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|
@@ -308,8 +309,8 @@ statd_matchhostname(const char *hostname1, const char *hostname2)
|
|
}
|
|
|
|
out:
|
|
- freeaddrinfo(results2);
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|
- freeaddrinfo(results1);
|
|
+ nfs_freeaddrinfo(results2);
|
|
+ nfs_freeaddrinfo(results1);
|
|
|
|
xlog(D_CALL, "%s: hostnames %s and %s %s", __func__,
|
|
hostname1, hostname2,
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|
diff --git a/utils/statd/sm-notify.c b/utils/statd/sm-notify.c
|
|
index 29dad38..05d72a3 100644
|
|
--- a/utils/statd/sm-notify.c
|
|
+++ b/utils/statd/sm-notify.c
|
|
@@ -37,6 +37,7 @@
|
|
#include "xlog.h"
|
|
#include "nsm.h"
|
|
#include "nfsrpc.h"
|
|
+#include "exportfs.h"
|
|
|
|
/* glibc before 2.3.4 */
|
|
#ifndef AI_NUMERICSERV
|
|
@@ -179,7 +180,7 @@ smn_verify_my_name(const char *name)
|
|
case 0:
|
|
/* @name was a presentation address */
|
|
retval = smn_get_hostname(ai->ai_addr, ai->ai_addrlen, name);
|
|
- freeaddrinfo(ai);
|
|
+ nfs_freeaddrinfo(ai);
|
|
if (retval == NULL)
|
|
return NULL;
|
|
break;
|
|
@@ -253,8 +254,7 @@ static void smn_forget_host(struct nsm_host *host)
|
|
free((void *)host->my_name);
|
|
free((void *)host->mon_name);
|
|
free(host->name);
|
|
- if (host->ai)
|
|
- freeaddrinfo(host->ai);
|
|
+ nfs_freeaddrinfo(host->ai);
|
|
|
|
free(host);
|
|
}
|
|
@@ -430,7 +430,7 @@ retry:
|
|
if (srcport) {
|
|
if (bind(sock, ai->ai_addr, ai->ai_addrlen) == -1) {
|
|
xlog(L_ERROR, "Failed to bind RPC socket: %m");
|
|
- freeaddrinfo(ai);
|
|
+ nfs_freeaddrinfo(ai);
|
|
(void)close(sock);
|
|
return -1;
|
|
}
|
|
@@ -440,7 +440,7 @@ retry:
|
|
if (smn_bindresvport(sock, ai->ai_addr) == -1) {
|
|
xlog(L_ERROR,
|
|
"bindresvport on RPC socket failed: %m");
|
|
- freeaddrinfo(ai);
|
|
+ nfs_freeaddrinfo(ai);
|
|
(void)close(sock);
|
|
return -1;
|
|
}
|
|
@@ -449,13 +449,13 @@ retry:
|
|
se = getservbyport((int)nfs_get_port(ai->ai_addr), "udp");
|
|
if (se != NULL && retry_cnt < 100) {
|
|
retry_cnt++;
|
|
- freeaddrinfo(ai);
|
|
+ nfs_freeaddrinfo(ai);
|
|
(void)close(sock);
|
|
goto retry;
|
|
}
|
|
}
|
|
|
|
- freeaddrinfo(ai);
|
|
+ nfs_freeaddrinfo(ai);
|
|
return sock;
|
|
}
|
|
|
|
--
|
|
2.20.1
|
|
|