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- /*
- * Routing table access functions for MintNet. (w) 1994 Kay Roemer.
- */
-
- #include <unistd.h>
- #include <fcntl.h>
- #include <sys/types.h>
- #include <sys/socket.h>
- #include <netinet/in.h>
- #include <net/if.h>
- #include <net/route.h>
- #include "rtent.h"
-
- #define _PATH_DEV_ROUTE "/dev/route"
-
- struct route_info {
- char nif[IFNAMSIZ];
- struct rtentry rt;
- };
-
- static int rtfd = -1;
- static struct route_info rtent;
-
- void
- setrtent (void)
- {
- if (rtfd < 0) {
- rtfd = open (_PATH_DEV_ROUTE, O_RDONLY);
- }
- }
-
- void
- endrtent (void)
- {
- if (rtfd >= 0)
- close (rtfd);
- rtfd = -1;
- }
-
- struct rtentry *
- getrtent (void)
- {
- int r;
-
- if (rtfd < 0)
- return 0;
- r = read (rtfd, &rtent, sizeof (rtent));
- if (r != sizeof (rtent))
- return 0;
- return &rtent.rt;
- }
-