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b4d0d93 |
--- net-tools-1.60/ifconfig.c.new 2005-07-20 12:47:29.000000000 +0200
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+++ net-tools-1.60/ifconfig.c 2005-07-20 12:54:57.000000000 +0200
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@@ -175,6 +175,32 @@
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return (0);
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}
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+/** test is a specified flag is set */
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+static int test_flag(char *ifname, short flags)
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+{
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+ struct ifreq ifr;
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+ int fd;
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+
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+ if (strchr(ifname, ':')) {
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+ /* This is a v4 alias interface. Downing it via a socket for
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+ another AF may have bad consequences. */
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+ fd = get_socket_for_af(AF_INET);
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+ if (fd < 0) {
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+ fprintf(stderr, _("No support for INET on this system.\n"));
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+ return -1;
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+ }
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+ } else
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+ fd = skfd;
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+
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+ safe_strncpy(ifr.ifr_name, ifname, IFNAMSIZ);
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+ if (ioctl(fd, SIOCGIFFLAGS, &ifr) < 0) {
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+ fprintf(stderr, _("%s: ERROR while testing interface flags: %s\n"),
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+ ifname, strerror(errno));
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+ return -1;
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+ }
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+ return (ifr.ifr_flags & flags);
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+}
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+
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static void usage(void)
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{
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fprintf(stderr, _("Usage:\n ifconfig [-a] [-v] [-s] <interface> [[<AF>] <address>]\n"));
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@@ -249,7 +275,7 @@
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err = 1;
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}
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}
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- return 0;
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+ return err;
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}
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int main(int argc, char **argv)
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@@ -415,6 +441,8 @@
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}
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if (!strcmp(*spp, "-promisc")) {
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goterr |= clr_flag(ifr.ifr_name, IFF_PROMISC);
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+ if (test_flag(ifr.ifr_name, IFF_PROMISC) > 0)
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+ fprintf(stderr, _("Warning: Interface %s still in promisc mode... maybe other application is running?\n"), ifr.ifr_name);
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spp++;
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continue;
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}
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@@ -425,6 +453,8 @@
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}
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if (!strcmp(*spp, "-multicast")) {
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goterr |= clr_flag(ifr.ifr_name, IFF_MULTICAST);
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+ if (test_flag(ifr.ifr_name, IFF_MULTICAST) > 0)
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+ fprintf(stderr, _("Warning: Interface %s still in MULTICAST mode.\n"), ifr.ifr_name);
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spp++;
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continue;
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}
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@@ -435,6 +465,8 @@
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}
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if (!strcmp(*spp, "-allmulti")) {
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goterr |= clr_flag(ifr.ifr_name, IFF_ALLMULTI);
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+ if (test_flag(ifr.ifr_name, IFF_MULTICAST) > 0)
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+ fprintf(stderr, _("Warning: Interface %s still in ALLMULTI mode.\n"), ifr.ifr_name);
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spp++;
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continue;
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}
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@@ -456,6 +488,8 @@
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}
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if (!strcmp(*spp, "-dynamic")) {
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goterr |= clr_flag(ifr.ifr_name, IFF_DYNAMIC);
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+ if (test_flag(ifr.ifr_name, IFF_MULTICAST) > 0)
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+ fprintf(stderr, _("Warning: Interface %s still in DYNAMIC mode.\n"), ifr.ifr_name);
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spp++;
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continue;
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}
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@@ -513,6 +547,8 @@
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if (!strcmp(*spp, "-broadcast")) {
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goterr |= clr_flag(ifr.ifr_name, IFF_BROADCAST);
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+ if (test_flag(ifr.ifr_name, IFF_MULTICAST) > 0)
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+ fprintf(stderr, _("Warning: Interface %s still in BROADCAST mode.\n"), ifr.ifr_name);
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spp++;
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continue;
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}
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@@ -569,7 +605,7 @@
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continue;
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}
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didnetmask++;
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- goterr = set_netmask(ap->fd, &ifr, &sa, dobcast);
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+ goterr |= set_netmask(ap->fd, &ifr, &sa, dobcast);
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spp++;
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continue;
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}
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@@ -640,6 +676,8 @@
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}
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if (!strcmp(*spp, "-pointopoint")) {
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goterr |= clr_flag(ifr.ifr_name, IFF_POINTOPOINT);
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+ if (test_flag(ifr.ifr_name, IFF_MULTICAST) > 0)
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+ fprintf(stderr, _("Warning: Interface %s still in POINTOPOINT mode.\n"), ifr.ifr_name);
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spp++;
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continue;
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}
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