Question

Error message:
/usr/include/sys/socket.h:197:12: note: declared here
simple_server.c:38:50: error: ‘client_addr’ undeclared (first use in this function)

i have tried to change socket.h file, "Error writing sovket.h permition denied" sombody can help me?

Answer 1

mac or linux ?

Answer 2

linux

Answer 3

try
chmod a=rw /usr/include/sys/socket.h

then try to edit the file, i think it should work

Answer 4

chmod: changing permissions of `/usr/include/sys/socket.h': Operation not permitted

Answer 5

sudo chmod ...

Answer 6

i got it, thanks a lot