All symbols starting with `f' in src/slirp

• fd_block src/slirp/misc.c:840
• fd_nonblock src/slirp/misc.c:825
• find_addr src/slirp/bootp.c:64
• first_char src/slirp/tcpip.h:75
• fork_exec src/slirp/misc.c:269
• fragtoip src/slirp/ip_input.c:241