Would you like to add more error handling for return values from functions like the following? - [malloc](https://pubs.opengroup.org/onlinepubs/9699919799/functions/malloc.html "Memory allocation") ⇒ [dappendc](https://github.com/f-prime/fist/blob/99a9710a3d4f8e0e6e7a090925027ce804e37f65/fist/dstring.c#L10) - [printf](https://pubs.opengroup.org/onlinepubs/9699919799/functions/printf.html "Print formatted output") ⇒ [handle_connection](https://github.com/f-prime/fist/blob/69acb7457007fddee3501f2e47704d0faa94d3c5/fist/server.c#L28)