--- busybox-1.9.0/networking/zcip.c Fri Dec 21 23:00:25 2007 +++ busybox-1.9.0-zcip/networking/zcip.c Mon Feb 4 10:37:14 2008 @@ -180,7 +180,7 @@ char *r_opt; unsigned opts; - /* Ugly trick, but I want these zeroed in one go */ + // ugly trick, but I want these zeroed in one go struct { const struct in_addr null_ip; const struct ether_addr null_addr; @@ -214,8 +214,17 @@ // exactly 2 args; -v accumulates and implies -f opt_complementary = "=2:vv:vf"; opts = getopt32(argv, "fqr:v", &r_opt, &verbose); +#if !BB_MMU + // on NOMMU reexec early (or else we will rerun things twice) + if (!FOREGROUND) + bb_daemonize_or_rexec(DAEMON_CHDIR_ROOT, argv); +#endif + // open an ARP socket + // (need to do it before openlog to prevent openlog from taking + // fd 3 (sock_fd==3)) + xmove_fd(xsocket(AF_PACKET, SOCK_PACKET, htons(ETH_P_ARP)), sock_fd); if (!FOREGROUND) { - /* Do it early, before all bb_xx_msg calls */ + // do it before all bb_xx_msg calls openlog(applet_name, 0, LOG_DAEMON); logmode |= LOGMODE_SYSLOG; } @@ -226,11 +235,6 @@ bb_error_msg_and_die("invalid link address"); } } - // On NOMMU reexec early (or else we will rerun things twice) -#if !BB_MMU - if (!FOREGROUND) - bb_daemonize_or_rexec(DAEMON_CHDIR_ROOT, argv); -#endif argc -= optind; argv += optind; @@ -249,8 +253,6 @@ //TODO: are we leaving sa_family == 0 (AF_UNSPEC)?! safe_strncpy(saddr.sa_data, intf, sizeof(saddr.sa_data)); - // open an ARP socket - xmove_fd(xsocket(AF_PACKET, SOCK_PACKET, htons(ETH_P_ARP)), sock_fd); // bind to the interface's ARP socket xbind(sock_fd, &saddr, sizeof(saddr)); @@ -290,7 +292,7 @@ // restarting after address conflicts: // - start with some address we want to try // - short random delay - // - arp probes to see if another host else uses it + // - arp probes to see if another host uses it // - arp announcements that we're claiming it // - use it // - defend it, within limits @@ -321,1 +323,1 @@ switch (safe_poll(fds, 1, timeout_ms)) { default: - /*bb_perror_msg("poll"); - done in safe_poll */ + //bb_perror_msg("poll"); - done in safe_poll return EXIT_FAILURE; // timeout