ref: 7faa0a6225f7f6d3b4a5b9c0b0ce919a8d7056a2 dir: /sys/src/libbio/bfildes.c/
#include <u.h> #include <libc.h> #include <bio.h> int Bfildes(Biobufhdr *bp) { return bp->fid; }