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Multiple small/minor issues: bug #36492 Static Analysis on code 1.4.0

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This commit is contained in:
Simon Goldschmidt 2014-04-06 21:43:37 +02:00
parent be75c483d0
commit 3f016fcc5a
4 changed files with 13 additions and 5 deletions
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9
src/api/api_msg.c
View File

@ -1235,9 +1235,8 @@ lwip_netconn_do_writemore(struct netconn *conn)
u16_t len, available;
u8_t write_finished = 0;
size_t diff;
u8_t dontblock = netconn_is_nonblocking(conn) ||
(conn->current_msg->msg.w.apiflags & NETCONN_DONTBLOCK);
u8_t apiflags = conn->current_msg->msg.w.apiflags;
u8_t dontblock;
u8_t apiflags;
LWIP_ASSERT("conn != NULL", conn != NULL);
LWIP_ASSERT("conn->state == NETCONN_WRITE", (conn->state == NETCONN_WRITE));
@ -1246,6 +1245,10 @@ lwip_netconn_do_writemore(struct netconn *conn)
LWIP_ASSERT("conn->write_offset < conn->current_msg->msg.w.len",
conn->write_offset < conn->current_msg->msg.w.len);
dontblock = netconn_is_nonblocking(conn) ||
(conn->current_msg->msg.w.apiflags & NETCONN_DONTBLOCK);
apiflags = conn->current_msg->msg.w.apiflags;
#if LWIP_SO_SNDTIMEO
if ((conn->send_timeout != 0) &&
((s32_t)(sys_now() - conn->current_msg->msg.w.time_started) >= conn->send_timeout)) {

5
src/api/tcpip.c
View File

@ -93,6 +93,11 @@ tcpip_thread(void *arg)
/* wait for a message, timeouts are processed while waiting */
sys_timeouts_mbox_fetch(&mbox, (void **)&msg);
LOCK_TCPIP_CORE();
if (msg == NULL) {
LWIP_DEBUGF(TCPIP_DEBUG, ("tcpip_thread: invalid message: NULL\n"));
LWIP_ASSERT("tcpip_thread: invalid message", 0);
continue;
}
switch (msg->type) {
#if LWIP_NETCONN
case TCPIP_MSG_API:

2
src/core/dhcp.c
View File

@ -1563,7 +1563,7 @@ dhcp_recv(void *arg, struct udp_pcb *pcb, struct pbuf *p, ip_addr_t *addr, u16_t
goto free_pbuf_and_return;
}
/* iterate through hardware address and match against DHCP message */
for (i = 0; i < netif->hwaddr_len; i++) {
for (i = 0; i < netif->hwaddr_len && i < NETIF_MAX_HWADDR_LEN && i < DHCP_CHADDR_LEN; i++) {
if (netif->hwaddr[i] != reply_msg->chaddr[i]) {
LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_LEVEL_WARNING,
("netif->hwaddr[%"U16_F"]==%02"X16_F" != reply_msg->chaddr[%"U16_F"]==%02"X16_F"\n",

2
src/core/ipv4/ip_frag.c
View File

@ -423,7 +423,7 @@ ip_reass_chain_frag_into_datagram_and_validate(struct ip_reassdata *ipr, struct
if (valid) {
/* then check if the rest of the fragments is here */
/* Check if the queue starts with the first datagram */
if (((struct ip_reass_helper*)ipr->p->payload)->start != 0) {
if ((ipr->p == NULL) || (((struct ip_reass_helper*)ipr->p->payload)->start != 0)) {
valid = 0;
} else {
/* and check that there are no wholes after this datagram */