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api_msg: Fix unused local variable if LWIP_NETCONN_SEM_PER_THREAD=1

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Closes CID 460613: Uninitialized pointer read in api_lib.c, netconn_gethostbyname_addrtype
This commit is contained in:
David Cermak
2024-06-10 14:15:50 +08:00
committed by David Čermák
parent 4297782bf9
commit aa4f6e780f
1 changed files with 4 additions and 2 deletions
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src/api/api_lib.c
+4 -2
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@@ -1278,9 +1278,9 @@ netconn_gethostbyname(const char *name, ip_addr_t *addr)
#endif #endif
{ {
API_VAR_DECLARE(struct dns_api_msg, msg); API_VAR_DECLARE(struct dns_api_msg, msg);
#if !LWIP_MPU_COMPATIBLE #if !LWIP_MPU_COMPATIBLE && !LWIP_NETCONN_SEM_PER_THREAD
sys_sem_t sem; sys_sem_t sem;
#endif /* LWIP_MPU_COMPATIBLE */ #endif /* !LWIP_MPU_COMPATIBLE && !LWIP_NETCONN_SEM_PER_THREAD */
err_t err; err_t err;
err_t cberr; err_t cberr;
@@ -1308,7 +1308,9 @@ netconn_gethostbyname(const char *name, ip_addr_t *addr)
API_VAR_REF(msg).name[DNS_MAX_NAME_LENGTH - 1] = 0; API_VAR_REF(msg).name[DNS_MAX_NAME_LENGTH - 1] = 0;
#else /* LWIP_MPU_COMPATIBLE */ #else /* LWIP_MPU_COMPATIBLE */
msg.err = &err; msg.err = &err;
#if !LWIP_NETCONN_SEM_PER_THREAD
msg.sem = &sem; msg.sem = &sem;
#endif
API_VAR_REF(msg).addr = API_VAR_REF(addr); API_VAR_REF(msg).addr = API_VAR_REF(addr);
API_VAR_REF(msg).name = name; API_VAR_REF(msg).name = name;
#endif /* LWIP_MPU_COMPATIBLE */ #endif /* LWIP_MPU_COMPATIBLE */