vsnprintf
Name
vsnprintf -- Format a string and place it in a buffer
Synopsis
int vsnprintf (char * buf, size_t size, const char * fmt, va_list args);
Arguments
buf The buffer to place the result into
size The size of the buffer, including the trailing null space
fmt The format string to use
args Arguments for the format string
Description
Call this function if you are already dealing with a va_list.
You probably want snprintf instead.