added a unit test and a comment

This commit is contained in:
wangyu-
2017-08-28 17:41:31 -05:00
parent dc52499818
commit d2ebcf6f6d
2 changed files with 13 additions and 1 deletions

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@@ -302,7 +302,7 @@ void setnonblocking(int sock) {
/*
Generic checksum calculation function
*/
unsigned short csum(const unsigned short *ptr,int nbytes) {
unsigned short csum(const unsigned short *ptr,int nbytes) {//works both for big and little endian
register long sum;
unsigned short oddbyte;
register short answer;
@@ -325,6 +325,7 @@ unsigned short csum(const unsigned short *ptr,int nbytes) {
return(answer);
}
int set_buf_size(int fd)
{
if(setsockopt(fd, SOL_SOCKET, SO_SNDBUFFORCE, &socket_buf_size, sizeof(socket_buf_size))<0)