diff options
Diffstat (limited to 'bpf-interface.scm')
| -rw-r--r-- | bpf-interface.scm | 21 |
1 files changed, 3 insertions, 18 deletions
diff --git a/bpf-interface.scm b/bpf-interface.scm index 68c9984..0277140 100644 --- a/bpf-interface.scm +++ b/bpf-interface.scm @@ -9,7 +9,7 @@ (bpf-open bpf-close bpf? bpf-buffer-length bpf-flush! bpf-interface bpf-interface-set! bpf-stats bpf-datalink-type bpf-datalink-type-set! bpf-list-datalink-types - bpf-read-timeout bpf-read-timeout-set! bpf-filter-set!) + bpf-filter-set!) (import chicken scheme foreign) @@ -85,7 +85,8 @@ (make-property-condition 'bpf) (make-property-condition 'i/o) (make-property-condition 'file)))) - (let* ((fd (condition-case (file-open fn (fx+ open/read open/write)) + (let* ((mode (bitwise-ior open/read open/write open/nonblock)) + (fd (condition-case (file-open fn mode) (e (exn i/o file) (lp (fx+ i 1) fn e)))) (bpf (make-bpf fd))) (set-finalizer! bpf bpf-close) @@ -178,22 +179,6 @@ ((foreign-lambda* unsigned-int (((c-pointer "u_int") p) (int i)) "C_return(p[i]);") (location types) i)))))) -(define (bpf-read-timeout bpf) - (let ((tv (make-blob (foreign-value "sizeof(struct timeval)" int)))) - (ioctl bpf BIOCGRTIMEOUT tv) - ((foreign-lambda* double (((c-pointer "struct timeval") tv)) - "C_return(tv->tv_sec + tv->tv_usec / 1000000.0);") (location tv)))) - -(define (bpf-read-timeout-set! bpf timeout) - (let ((tv (make-blob (foreign-value "sizeof(struct timeval)" int))) - (timeout (max 0 timeout))) - ((foreign-lambda* void (((c-pointer "struct timeval") tv) (double timeout)) - "double i;" - "tv->tv_usec = (int)(modf(timeout, &i) * 1000000);" - "tv->tv_sec = (int)timeout;") (location tv) timeout) - (ioctl bpf BIOCSRTIMEOUT tv) - (void))) - (define (bpf-stats bpf) (let ((st (make-blob (foreign-value "sizeof(struct bpf_stat)" int)))) (ioctl bpf BIOCGSTATS st) |