I want to be able to map memory to a file descriptor so I can use some existing functions that need a file descriptor. Here's essentially what I'm looking for:
void do_operation1(int fd);
char data[DATA_MAX] = { /* embedded binary data */ };
int fd = addr_to_fd(data, DATA_MAX);
do_operation1(fd);
/* ... operate on fd ... */
What system call, or calls, can I use to accomplish this?