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pimd: Fix use of 0 for NULL

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pimd uses allot of 0's to represent NULL.  Not a good
programming practice.

Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
This commit is contained in:
Donald Sharp 2016-07-14 17:19:00 -04:00
parent 2ddab28881
commit 59ba0ac3e6
8 changed files with 45 additions and 46 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
pimd/pim_assert.c
View File

@ -552,7 +552,7 @@ static int on_assert_timer(struct thread *t)
src_str, grp_str, ifp->name);
}
ch->t_ifassert_timer = 0;
ch->t_ifassert_timer = NULL;
switch (ch->ifassert_state) {
case PIM_IFASSERT_I_AM_WINNER:

10
pimd/pim_iface.c
View File

@ -111,10 +111,10 @@ struct pim_interface *pim_if_new(struct interface *ifp, int igmp, int pim)
PIM_IF_DO_IGMP_LISTEN_ALLROUTERS(pim_ifp->options);
#endif
pim_ifp->igmp_join_list = 0;
pim_ifp->igmp_socket_list = 0;
pim_ifp->pim_neighbor_list = 0;
pim_ifp->pim_ifchannel_list = 0;
pim_ifp->igmp_join_list = NULL;
pim_ifp->igmp_socket_list = NULL;
pim_ifp->pim_neighbor_list = NULL;
pim_ifp->pim_ifchannel_list = NULL;
pim_ifp->pim_generation_id = 0;
/* list of struct igmp_sock */
@ -187,7 +187,7 @@ void pim_if_delete(struct interface *ifp)
XFREE(MTYPE_PIM_INTERFACE, pim_ifp);
ifp->info = 0;
ifp->info = NULL;
}
void pim_if_update_could_assert(struct interface *ifp)

16
pimd/pim_ifchannel.c
View File

@ -202,14 +202,14 @@ static struct pim_ifchannel *pim_ifchannel_new(struct interface *ifp,
zlog_err("%s: could not attach upstream (S,G)=(%s,%s) on interface %s",
__PRETTY_FUNCTION__,
src_str, grp_str, ifp->name);
return 0;
return NULL;
}
ch = XMALLOC(MTYPE_PIM_IFCHANNEL, sizeof(*ch));
if (!ch) {
zlog_err("%s: PIM XMALLOC(%zu) failure",
__PRETTY_FUNCTION__, sizeof(*ch));
return 0;
return NULL;
}
ch->flags = 0;
@ -220,8 +220,8 @@ static struct pim_ifchannel *pim_ifchannel_new(struct interface *ifp,
ch->local_ifmembership = PIM_IFMEMBERSHIP_NOINFO;
ch->ifjoin_state = PIM_IFJOIN_NOINFO;
ch->t_ifjoin_expiry_timer = 0;
ch->t_ifjoin_prune_pending_timer = 0;
ch->t_ifjoin_expiry_timer = NULL;
ch->t_ifjoin_prune_pending_timer = NULL;
ch->ifjoin_creation = 0;
ch->ifassert_my_metric = pim_macro_ch_my_assert_metric_eval(ch);
@ -230,7 +230,7 @@ static struct pim_ifchannel *pim_ifchannel_new(struct interface *ifp,
ch->ifassert_winner.s_addr = 0;
/* Assert state */
ch->t_ifassert_timer = 0;
ch->t_ifassert_timer = NULL;
reset_ifassert_state(ch);
if (pim_macro_ch_could_assert_eval(ch))
PIM_IF_FLAG_SET_COULD_ASSERT(ch->flags);
@ -363,7 +363,7 @@ struct pim_ifchannel *pim_ifchannel_add(struct interface *ifp,
__PRETTY_FUNCTION__,
src_str, grp_str, ifp->name);
return 0;
return NULL;
}
static void ifjoin_to_noinfo(struct pim_ifchannel *ch)
@ -381,7 +381,7 @@ static int on_ifjoin_expiry_timer(struct thread *t)
ch = THREAD_ARG(t);
zassert(ch);
ch->t_ifjoin_expiry_timer = 0;
ch->t_ifjoin_expiry_timer = NULL;
zassert(ch->ifjoin_state == PIM_IFJOIN_JOIN);
@ -431,7 +431,7 @@ static int on_ifjoin_prune_pending_timer(struct thread *t)
ch = THREAD_ARG(t);
zassert(ch);
ch->t_ifjoin_prune_pending_timer = 0;
ch->t_ifjoin_prune_pending_timer = NULL;
zassert(ch->ifjoin_state == PIM_IFJOIN_PRUNE_PENDING);

14
pimd/pim_igmp.c
View File

@ -171,7 +171,7 @@ static int pim_igmp_other_querier_expire(struct thread *t)
ifaddr_str);
}
igmp->t_other_querier_timer = 0;
igmp->t_other_querier_timer = NULL;
/*
We are the current querier, then
@ -212,7 +212,7 @@ void pim_igmp_other_querier_timer_on(struct igmp_sock *igmp)
else {
/*
We are the current querier, then stop sending general queries:
igmp->t_igmp_query_timer = 0;
igmp->t_igmp_query_timer = NULL;
*/
pim_igmp_general_query_off(igmp);
}
@ -864,7 +864,7 @@ void pim_igmp_general_query_on(struct igmp_sock *igmp)
startup_mode ? "startup" : "non-startup",
igmp->fd);
}
igmp->t_igmp_query_timer = 0;
igmp->t_igmp_query_timer = NULL;
zassert(!igmp->t_igmp_query_timer);
THREAD_TIMER_ON(master, igmp->t_igmp_query_timer,
pim_igmp_general_query,
@ -956,7 +956,7 @@ static void igmp_read_on(struct igmp_sock *igmp)
zlog_debug("Scheduling READ event on IGMP socket fd=%d",
igmp->fd);
}
igmp->t_igmp_read = 0;
igmp->t_igmp_read = NULL;
zassert(!igmp->t_igmp_read);
THREAD_READ_ON(master, igmp->t_igmp_read, pim_igmp_read, igmp, igmp->fd);
}
@ -1202,9 +1202,9 @@ static struct igmp_sock *igmp_sock_new(int fd,
igmp->fd = fd;
igmp->interface = ifp;
igmp->ifaddr = ifaddr;
igmp->t_igmp_read = 0;
igmp->t_igmp_query_timer = 0;
igmp->t_other_querier_timer = 0; /* no other querier present */
igmp->t_igmp_read = NULL;
igmp->t_igmp_query_timer = NULL;
igmp->t_other_querier_timer = NULL; /* no other querier present */
igmp->querier_robustness_variable = pim_ifp->igmp_default_robustness_variable;
igmp->sock_creation = pim_time_monotonic_sec();

4
pimd/pim_neighbor.c
View File

@ -222,7 +222,7 @@ static int on_neighbor_timer(struct thread *t)
neigh->holdtime, src_str, ifp->name);
}
neigh->t_expire_timer = 0;
neigh->t_expire_timer = NULL;
snprintf(msg, sizeof(msg), "%d-sec holdtime expired", neigh->holdtime);
pim_neighbor_delete(ifp, neigh, msg);
@ -313,7 +313,7 @@ static struct pim_neighbor *pim_neighbor_new(struct interface *ifp,
neigh->dr_priority = dr_priority;
neigh->generation_id = generation_id;
neigh->prefix_list = addr_list;
neigh->t_expire_timer = 0;
neigh->t_expire_timer = NULL;
neigh->interface = ifp;
pim_neighbor_timer_reset(neigh, holdtime);

13
pimd/pim_pim.c
View File

@ -377,7 +377,7 @@ static void pim_sock_read_on(struct interface *ifp)
zlog_debug("Scheduling READ event on PIM socket fd=%d",
pim_ifp->pim_sock_fd);
}
pim_ifp->t_pim_sock_read = 0;
pim_ifp->t_pim_sock_read = NULL;
zassert(!pim_ifp->t_pim_sock_read);
THREAD_READ_ON(master, pim_ifp->t_pim_sock_read, pim_sock_read, ifp,
pim_ifp->pim_sock_fd);
@ -430,9 +430,9 @@ void pim_sock_reset(struct interface *ifp)
pim_ifp->pim_sock_fd = -1;
pim_ifp->pim_sock_creation = 0;
pim_ifp->t_pim_sock_read = 0;
pim_ifp->t_pim_sock_read = NULL;
pim_ifp->t_pim_hello_timer = 0;
pim_ifp->t_pim_hello_timer = NULL;
pim_ifp->pim_hello_period = PIM_DEFAULT_HELLO_PERIOD;
pim_ifp->pim_default_holdtime = -1; /* unset: means 3.5 * pim_hello_period */
pim_ifp->pim_triggered_hello_delay = PIM_DEFAULT_TRIGGERED_HELLO_DELAY;
@ -634,7 +634,7 @@ static int on_pim_hello_send(struct thread *t)
/*
* Schedule next hello
*/
pim_ifp->t_pim_hello_timer = 0;
pim_ifp->t_pim_hello_timer = NULL;
hello_resched(ifp);
/*
@ -701,9 +701,8 @@ void pim_hello_restart_triggered(struct interface *ifp)
}
THREAD_OFF(pim_ifp->t_pim_hello_timer);
pim_ifp->t_pim_hello_timer = 0;
pim_ifp->t_pim_hello_timer = NULL;
}
zassert(!pim_ifp->t_pim_hello_timer);
random_msec = random() % (triggered_hello_delay_msec + 1);
@ -741,7 +740,7 @@ int pim_sock_add(struct interface *ifp)
return -2;
}
pim_ifp->t_pim_sock_read = 0;
pim_ifp->t_pim_sock_read = NULL;
pim_ifp->pim_sock_creation = pim_time_monotonic_sec();
/*

16
pimd/pim_static.c
View File

@ -80,11 +80,11 @@ static struct static_route *static_route_new(unsigned int iif,
int pim_static_add(struct interface *iif, struct interface *oif, struct in_addr group, struct in_addr source)
{
struct listnode *node = 0;
struct static_route *s_route = 0;
struct static_route *original_s_route = 0;
struct pim_interface *pim_iif = iif ? iif->info : 0;
struct pim_interface *pim_oif = oif ? oif->info : 0;
struct listnode *node = NULL;
struct static_route *s_route = NULL;
struct static_route *original_s_route = NULL;
struct pim_interface *pim_iif = iif ? iif->info : NULL;
struct pim_interface *pim_oif = oif ? oif->info : NULL;
ifindex_t iif_index = pim_iif ? pim_iif->mroute_vif_index : 0;
ifindex_t oif_index = pim_oif ? pim_oif->mroute_vif_index : 0;
@ -228,9 +228,9 @@ int pim_static_add(struct interface *iif, struct interface *oif, struct in_addr
int pim_static_del(struct interface *iif, struct interface *oif, struct in_addr group, struct in_addr source)
{
struct listnode *node = 0;
struct listnode *nextnode = 0;
struct static_route *s_route = 0;
struct listnode *node = NULL;
struct listnode *nextnode = NULL;
struct static_route *s_route = NULL;
struct pim_interface *pim_iif = iif ? iif->info : 0;
struct pim_interface *pim_oif = oif ? oif->info : 0;
ifindex_t iif_index = pim_iif ? pim_iif->mroute_vif_index : 0;

16
pimd/pimd.c
View File

@ -47,21 +47,21 @@ struct thread_master *master = NULL;
uint32_t qpim_debugs = 0;
int qpim_mroute_socket_fd = -1;
int64_t qpim_mroute_socket_creation = 0; /* timestamp of creation */
struct thread *qpim_mroute_socket_reader = 0;
struct thread *qpim_mroute_socket_reader = NULL;
int qpim_mroute_oif_highest_vif_index = -1;
struct list *qpim_channel_oil_list = 0;
struct list *qpim_channel_oil_list = NULL;
int qpim_t_periodic = PIM_DEFAULT_T_PERIODIC; /* Period between Join/Prune Messages */
struct list *qpim_upstream_list = 0;
struct zclient *qpim_zclient_update = 0;
struct zclient *qpim_zclient_lookup = 0;
struct list *qpim_upstream_list = NULL;
struct zclient *qpim_zclient_update = NULL;
struct zclient *qpim_zclient_lookup = NULL;
struct pim_assert_metric qpim_infinite_assert_metric;
long qpim_rpf_cache_refresh_delay_msec = 10000;
struct thread *qpim_rpf_cache_refresher = 0;
struct thread *qpim_rpf_cache_refresher = NULL;
int64_t qpim_rpf_cache_refresh_requests = 0;
int64_t qpim_rpf_cache_refresh_events = 0;
int64_t qpim_rpf_cache_refresh_last = 0;
struct in_addr qpim_inaddr_any;
struct list *qpim_ssmpingd_list = 0;
struct list *qpim_ssmpingd_list = NULL;
struct in_addr qpim_ssmpingd_group_addr;
int64_t qpim_scan_oil_events = 0;
int64_t qpim_scan_oil_last = 0;
@ -69,7 +69,7 @@ int64_t qpim_mroute_add_events = 0;
int64_t qpim_mroute_add_last = 0;
int64_t qpim_mroute_del_events = 0;
int64_t qpim_mroute_del_last = 0;
struct list *qpim_static_route_list = 0;
struct list *qpim_static_route_list = NULL;
struct pim_rpf qpim_rp = { .rpf_addr.s_addr = INADDR_NONE };
int32_t qpim_register_suppress_time = PIM_REGISTER_SUPPRESSION_TIME_DEFAULT;