How can I autoformat/indent C code in vim?

Question

When I copy code from another file, the formatting is messed up, like this:

fun()
{
for(...)
{
for(...)
{
if(...)
{
}
}
}
}

How can I autof

Answer 1

Their is a tool called indent. You can download it with apt-get install indent, then run indent my_program.c.