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authorAmar Tumballi <amar@gluster.com>2010-07-02 04:55:28 +0000
committerAnand V. Avati <avati@dev.gluster.com>2010-07-02 05:17:03 -0700
commit2f15ffd6b5beef9abd501c594bc3cb38c2683f77 (patch)
tree107176560e1a97c42f3535380ef49d4dee3b0cd6 /xlators/protocol/legacy
parent3dc79ca8e6119f5ff61058cc87f9a4fc251017ef (diff)
NULL dereference fixes in code base after running with 'clang'
* 212 logical (NULL deref/divide by zero) errors reduced to 28 (27 of them in contrib/ and lex part of codebase, 1 is invalid) * 11 API errors reduced to 0 Signed-off-by: Amar Tumballi <amar@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 966 (NULL check for avoiding NULL dereferencing of pointers..) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=966
Diffstat (limited to 'xlators/protocol/legacy')
-rw-r--r--xlators/protocol/legacy/client/src/client-protocol.c10
-rw-r--r--xlators/protocol/legacy/server/src/server-helpers.c16
-rw-r--r--xlators/protocol/legacy/server/src/server-protocol.c22
-rw-r--r--xlators/protocol/legacy/transport/ib-verbs/src/ib-verbs.c4
4 files changed, 30 insertions, 22 deletions
diff --git a/xlators/protocol/legacy/client/src/client-protocol.c b/xlators/protocol/legacy/client/src/client-protocol.c
index dae31dcb3..0dc5bee5d 100644
--- a/xlators/protocol/legacy/client/src/client-protocol.c
+++ b/xlators/protocol/legacy/client/src/client-protocol.c
@@ -302,6 +302,8 @@ call_bail (void *data)
gf_ops = gf_cbks;
gf_op_list = gf_cbk_list;
break;
+ default:
+ goto out;
}
localtime_r (&trav->saved_at.tv_sec, &frame_sent_tm);
@@ -3255,6 +3257,9 @@ client_lookup (call_frame_t *frame, xlator_t *this, loc_t *loc,
client_local_t *local = NULL;
char *buf = NULL;
+ GF_VALIDATE_OR_GOTO (this->name, loc, unwind);
+ GF_VALIDATE_OR_GOTO (this->name, loc->path, unwind);
+
local = GF_CALLOC (1, sizeof (*local), gf_client_mt_client_local_t);
GF_VALIDATE_OR_GOTO (this->name, local, unwind);
@@ -3262,9 +3267,6 @@ client_lookup (call_frame_t *frame, xlator_t *this, loc_t *loc,
frame->local = local;
- GF_VALIDATE_OR_GOTO (this->name, loc, unwind);
- GF_VALIDATE_OR_GOTO (this->name, loc->path, unwind);
-
if (loc->ino != 1 && loc->parent) {
ret = inode_ctx_get2 (loc->parent, this, &par, &gen);
if (loc->parent->ino && ret < 0) {
@@ -3319,7 +3321,7 @@ client_lookup (call_frame_t *frame, xlator_t *this, loc_t *loc,
return ret;
unwind:
- STACK_UNWIND (frame, op_ret, op_errno, loc->inode, NULL, NULL);
+ STACK_UNWIND (frame, op_ret, op_errno, (loc)?loc->inode:NULL, NULL, NULL);
return ret;
}
diff --git a/xlators/protocol/legacy/server/src/server-helpers.c b/xlators/protocol/legacy/server/src/server-helpers.c
index 7ab2ce885..595916a36 100644
--- a/xlators/protocol/legacy/server/src/server-helpers.c
+++ b/xlators/protocol/legacy/server/src/server-helpers.c
@@ -427,15 +427,17 @@ server_connection_destroy (xlator_t *this, server_connection_t *conn)
INIT_LIST_HEAD (&file_lockers);
INIT_LIST_HEAD (&dir_lockers);
- LOCK (&ltable->lock);
- {
- list_splice_init (&ltable->file_lockers,
- &file_lockers);
+ if (ltable) {
+ LOCK (&ltable->lock);
+ {
+ list_splice_init (&ltable->file_lockers,
+ &file_lockers);
- list_splice_init (&ltable->dir_lockers, &dir_lockers);
+ list_splice_init (&ltable->dir_lockers, &dir_lockers);
+ }
+ UNLOCK (&ltable->lock);
+ GF_FREE (ltable);
}
- UNLOCK (&ltable->lock);
- GF_FREE (ltable);
flock.l_type = F_UNLCK;
flock.l_start = 0;
diff --git a/xlators/protocol/legacy/server/src/server-protocol.c b/xlators/protocol/legacy/server/src/server-protocol.c
index 6a48dff39..da0303019 100644
--- a/xlators/protocol/legacy/server/src/server-protocol.c
+++ b/xlators/protocol/legacy/server/src/server-protocol.c
@@ -147,7 +147,7 @@ server_print_params (char *str, int size, server_state_t *state)
"wbflags=%d,", state->wbflags);
if (state->size)
filled += snprintf (str + filled, size - filled,
- "size=%Zu,", state->size);
+ "size=%zu,", state->size);
if (state->offset)
filled += snprintf (str + filled, size - filled,
"offset=%"PRId64",", state->offset);
@@ -667,8 +667,8 @@ server_fentrylk_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
gf_errno = gf_errno_to_error (op_errno);
hdr->rsp.op_errno = hton32 (gf_errno);
+ state = CALL_STATE(frame);
if (op_ret >= 0) {
- state = CALL_STATE(frame);
if (state->cmd == ENTRYLK_UNLOCK)
gf_del_locker (conn->ltable, state->volume,
NULL, state->fd, frame->root->pid);
@@ -5656,7 +5656,7 @@ mop_setvolume (call_frame_t *frame, xlator_t *bound_xl,
fail:
dict_len = dict_serialized_length (reply);
if (dict_len < 0) {
- gf_log (xl->name, GF_LOG_DEBUG,
+ gf_log ("server", GF_LOG_DEBUG,
"failed to get serialized length of reply dict");
op_ret = -1;
op_errno = EINVAL;
@@ -5670,7 +5670,7 @@ fail:
if (dict_len) {
ret = dict_serialize (reply, rsp->buf);
if (ret < 0) {
- gf_log (xl->name, GF_LOG_DEBUG,
+ gf_log ("server", GF_LOG_DEBUG,
"failed to serialize reply dict");
op_ret = -1;
op_errno = -ret;
@@ -6524,15 +6524,19 @@ int
notify (xlator_t *this, int32_t event, void *data, ...)
{
int ret = 0;
- transport_t *trans = data;
+ transport_t *trans = NULL;
peer_info_t *peerinfo = NULL;
peer_info_t *myinfo = NULL;
- if (trans != NULL) {
- peerinfo = &(trans->peerinfo);
- myinfo = &(trans->myinfo);
+ trans = data;
+ if (!trans) {
+ gf_log (this->name, GF_LOG_ERROR, "!trans");
+ goto out;
}
+ peerinfo = &(trans->peerinfo);
+ myinfo = &(trans->myinfo);
+
switch (event) {
case GF_EVENT_POLLIN:
ret = protocol_server_pollin (this, trans);
@@ -6576,7 +6580,7 @@ notify (xlator_t *this, int32_t event, void *data, ...)
default_notify (this, event, data);
break;
}
-
+out:
return ret;
}
diff --git a/xlators/protocol/legacy/transport/ib-verbs/src/ib-verbs.c b/xlators/protocol/legacy/transport/ib-verbs/src/ib-verbs.c
index 6714d32e7..85228bf4e 100644
--- a/xlators/protocol/legacy/transport/ib-verbs/src/ib-verbs.c
+++ b/xlators/protocol/legacy/transport/ib-verbs/src/ib-verbs.c
@@ -1718,8 +1718,8 @@ ib_verbs_init (transport_t *this)
if (!priv->device) {
gf_log ("transport/ib-verbs", GF_LOG_ERROR,
- "could not create ib_verbs device for %s",
- priv->device->device_name);
+ "could not create ib_verbs device for %s",
+ options->device_name);
ret = -1;
goto cleanup;
}