diff options
| author | senduo <[email protected]> | 2019-07-26 18:33:33 +0800 |
|---|---|---|
| committer | GitHub <[email protected]> | 2019-07-26 18:33:33 +0800 |
| commit | 350947b190aeda54ca002e88c87373f2d43e6244 (patch) | |
| tree | 0fa08ffeecee0f52f977e16aabff5eed934ce322 /components | |
| parent | 767ea2ab744334a52c28403ebfcc68caf2389a2b (diff) | |
修改at_socket.c文件中的sendto函数，len局部变量没有给初始值
len值如果不给初始值0，到最后__exit的时候，result = len会导致result的值变成一个不可预估的值，进而导致mbedtls库的while循环无法正常结束，其中mebedtls中发生异常的地方在ssl_tls.c文件中的mbedtls_ssl_flush_output函数while( ssl->out_left > 0 )，因为out_left 是一个无符号整型，退出的条件只能是 out_left = 0,又因为这里面的len没有给初始值0，返回出来的值是一个很大的整型数字，导致了mbedtls中的死循环
Diffstat (limited to 'components')
| -rw-r--r-- | components/net/at/at_socket/at_socket.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/components/net/at/at_socket/at_socket.c b/components/net/at/at_socket/at_socket.c index 804443fe32..72ff9a7aa3 100644 --- a/components/net/at/at_socket/at_socket.c +++ b/components/net/at/at_socket/at_socket.c @@ -856,7 +856,7 @@ int at_recv(int s, void *mem, size_t len, int flags) int at_sendto(int socket, const void *data, size_t size, int flags, const struct sockaddr *to, socklen_t tolen) { struct at_socket *sock = RT_NULL; - int len, result = 0; + int len = 0, result = 0; if (data == RT_NULL || size == 0) { |