Style, error_msg

git-svn-id: svn://busybox.net/trunk/busybox@6054 69ca8d6d-28ef-0310-b511-8ec308f3f277

1 files changed, 103 insertions, 60 deletions

diff --git a/networking/libiproute/iproute.c b/networking/libiproute/iproute.c
index fcfb409f2..e251b941e 100644
--- a/networking/libiproute/iproute.c
+++ b/networking/libiproute/iproute.c
@@ -90,48 +90,59 @@ int print_route(struct sockaddr_nl *who, struct nlmsghdr *n, void *arg)
         if (r->rtm_family == AF_INET6) {
                 if (filter.tb) {
                         if (filter.tb < 0) {
-                                if (!(r->rtm_flags&RTM_F_CLONED))
+                                if (!(r->rtm_flags&RTM_F_CLONED)) {
                                         return 0;
+                                }
                         } else {
-                                if (r->rtm_flags&RTM_F_CLONED)
+                                if (r->rtm_flags&RTM_F_CLONED) {
                                         return 0;
+                                }
                                 if (filter.tb == RT_TABLE_LOCAL) {
-                                        if (r->rtm_type != RTN_LOCAL)
+                                        if (r->rtm_type != RTN_LOCAL) {
                                                 return 0;
+                                        }
                                 } else if (filter.tb == RT_TABLE_MAIN) {
-                                        if (r->rtm_type == RTN_LOCAL)
+                                        if (r->rtm_type == RTN_LOCAL) {
                                                 return 0;
+                                        }
                                 } else {
                                         return 0;
                                 }
                         }
                 }
         } else {
-                if (filter.tb > 0 && filter.tb != r->rtm_table)
+                if (filter.tb > 0 && filter.tb != r->rtm_table) {
                         return 0;
+                }
         }
         if (filter.rdst.family &&
-            (r->rtm_family != filter.rdst.family || filter.rdst.bitlen > r->rtm_dst_len))
+            (r->rtm_family != filter.rdst.family || filter.rdst.bitlen > r->rtm_dst_len)) {
                 return 0;
+        }
         if (filter.mdst.family &&
             (r->rtm_family != filter.mdst.family ||
-             (filter.mdst.bitlen >= 0 && filter.mdst.bitlen < r->rtm_dst_len)))
+             (filter.mdst.bitlen >= 0 && filter.mdst.bitlen < r->rtm_dst_len))) {
                 return 0;
+        }
         if (filter.rsrc.family &&
-            (r->rtm_family != filter.rsrc.family || filter.rsrc.bitlen > r->rtm_src_len))
+            (r->rtm_family != filter.rsrc.family || filter.rsrc.bitlen > r->rtm_src_len)) {
                 return 0;
+        }
         if (filter.msrc.family &&
             (r->rtm_family != filter.msrc.family ||
-             (filter.msrc.bitlen >= 0 && filter.msrc.bitlen < r->rtm_src_len)))
+             (filter.msrc.bitlen >= 0 && filter.msrc.bitlen < r->rtm_src_len))) {
                 return 0;
+        }
 
         memset(tb, 0, sizeof(tb));
         parse_rtattr(tb, RTA_MAX, RTM_RTA(r), len);
 
-        if (n->nlmsg_type == RTM_DELROUTE)
+        if (n->nlmsg_type == RTM_DELROUTE) {
                 fprintf(fp, "Deleted ");
-        if (r->rtm_type != RTN_UNICAST && !filter.type)
+        }
+        if (r->rtm_type != RTN_UNICAST && !filter.type) {
                 fprintf(fp, "%s ", rtnl_rtntype_n2a(r->rtm_type, b1, sizeof(b1)));
+        }
 
         if (tb[RTA_DST]) {
                 if (r->rtm_dst_len != host_len) {
@@ -178,8 +189,9 @@ int print_route(struct sockaddr_nl *who, struct nlmsghdr *n, void *arg)
                                     RTA_DATA(tb[RTA_GATEWAY]),
                                     abuf, sizeof(abuf)));
         }
-        if (tb[RTA_OIF] && filter.oifmask != -1)
+        if (tb[RTA_OIF] && filter.oifmask != -1) {
                 fprintf(fp, "dev %s ", ll_index_to_name(*(int*)RTA_DATA(tb[RTA_OIF])));
+        }
 
         if (tb[RTA_PREFSRC] && filter.rprefsrc.bitlen != host_len) {
                 /* Do not use format_host(). It is our local addr
@@ -191,22 +203,28 @@ int print_route(struct sockaddr_nl *who, struct nlmsghdr *n, void *arg)
                                     RTA_DATA(tb[RTA_PREFSRC]),
                                     abuf, sizeof(abuf)));
         }
-        if (tb[RTA_PRIORITY])
+        if (tb[RTA_PRIORITY]) {
                 fprintf(fp, " metric %d ", *(__u32*)RTA_DATA(tb[RTA_PRIORITY]));
+        }
         if (r->rtm_family == AF_INET6) {
                 struct rta_cacheinfo *ci = NULL;
-                if (tb[RTA_CACHEINFO])
+                if (tb[RTA_CACHEINFO]) {
                         ci = RTA_DATA(tb[RTA_CACHEINFO]);
+                }
                 if ((r->rtm_flags & RTM_F_CLONED) || (ci && ci->rta_expires)) {
                         static int hz;
-                        if (!hz)
+                        if (!hz) {
                                 hz = get_hz();
-                        if (r->rtm_flags & RTM_F_CLONED)
+                        }
+                        if (r->rtm_flags & RTM_F_CLONED) {
                                 fprintf(fp, "%s    cache ", _SL_);
-                        if (ci->rta_expires)
+                        }
+                        if (ci->rta_expires) {
                                 fprintf(fp, " expires %dsec", ci->rta_expires/hz);
-                        if (ci->rta_error != 0)
+                        }
+                        if (ci->rta_error != 0) {
                                 fprintf(fp, " error %d", ci->rta_error);
+                        }
                 } else if (ci) {
                         if (ci->rta_error != 0)
                                 fprintf(fp, " error %d", ci->rta_error);
@@ -260,16 +278,18 @@ int iproute_modify(int cmd, unsigned flags, int argc, char **argv)
                         inet_prefix addr;
                         NEXT_ARG();
                         get_addr(&addr, *argv, req.r.rtm_family);
-                        if (req.r.rtm_family == AF_UNSPEC)
+                        if (req.r.rtm_family == AF_UNSPEC) {
                                 req.r.rtm_family = addr.family;
+                        }
                         addattr_l(&req.n, sizeof(req), RTA_PREFSRC, &addr.data, addr.bytelen);
                 } else if (strcmp(*argv, "via") == 0) {
                         inet_prefix addr;
                         gw_ok = 1;
                         NEXT_ARG();
                         get_addr(&addr, *argv, req.r.rtm_family);
-                        if (req.r.rtm_family == AF_UNSPEC)
+                        if (req.r.rtm_family == AF_UNSPEC) {
                                 req.r.rtm_family = addr.family;
+                        }
                         addattr_l(&req.n, sizeof(req), RTA_GATEWAY, &addr.data, addr.bytelen);
                 } else if (strcmp(*argv, "mtu") == 0) {
                         unsigned mtu;
@@ -278,8 +298,9 @@ int iproute_modify(int cmd, unsigned flags, int argc, char **argv)
                                 mxlock |= (1<<RTAX_MTU);
                                 NEXT_ARG();
                         }
-                        if (get_unsigned(&mtu, *argv, 0))
+                        if (get_unsigned(&mtu, *argv, 0)) {
                                 invarg("\"mtu\" value is invalid\n", *argv);
+                        }
                         rta_addattr32(mxrta, sizeof(mxbuf), RTAX_MTU, mtu);
                 } else if (matches(*argv, "protocol") == 0) {
                         int prot;
@@ -306,21 +327,25 @@ int iproute_modify(int cmd, unsigned flags, int argc, char **argv)
                                 type_ok = 1;
                         }
 
-                        if (dst_ok)
+                        if (dst_ok) {
                                 duparg2("to", *argv);
+                        }
                         get_prefix(&dst, *argv, req.r.rtm_family);
-                        if (req.r.rtm_family == AF_UNSPEC)
+                        if (req.r.rtm_family == AF_UNSPEC) {
                                 req.r.rtm_family = dst.family;
+                        }
                         req.r.rtm_dst_len = dst.bitlen;
                         dst_ok = 1;
-                        if (dst.bytelen)
+                        if (dst.bytelen) {
                                 addattr_l(&req.n, sizeof(req), RTA_DST, &dst.data, dst.bytelen);
+                        }
                 }
                 argc--; argv++;
         }
 
-        if (rtnl_open(&rth, 0) < 0)
+        if (rtnl_open(&rth, 0) < 0) {
                 exit(1);
+        }
 
         if (d)  {
                 int idx;
@@ -337,16 +362,19 @@ int iproute_modify(int cmd, unsigned flags, int argc, char **argv)
         }
 
         if (mxrta->rta_len > RTA_LENGTH(0)) {
-                if (mxlock)
+                if (mxlock) {
                         rta_addattr32(mxrta, sizeof(mxbuf), RTAX_LOCK, mxlock);
+                }
                 addattr_l(&req.n, sizeof(req), RTA_METRICS, RTA_DATA(mxrta), RTA_PAYLOAD(mxrta));
         }
 
-        if (req.r.rtm_family == AF_UNSPEC)
+        if (req.r.rtm_family == AF_UNSPEC) {
                 req.r.rtm_family = AF_INET;
+        }
 
-        if (rtnl_talk(&rth, &req.n, 0, 0, NULL, NULL, NULL) < 0)
+        if (rtnl_talk(&rth, &req.n, 0, 0, NULL, NULL, NULL) < 0) {
                 exit(2);
+        }
 
         return 0;
 }
@@ -390,8 +418,9 @@ static int iproute_list(int argc, char **argv)
                         NEXT_ARG();
                         filter.protocolmask = -1;
                         if (rtnl_rtprot_a2n(&prot, *argv)) {
-                                if (strcmp(*argv, "all") != 0)
+                                if (strcmp(*argv, "all") != 0) {
                                         invarg("invalid \"protocol\"\n", *argv);
+                                }
                                 prot = 0;
                                 filter.protocolmask = 0;
                         }
@@ -439,11 +468,13 @@ static int iproute_list(int argc, char **argv)
                 argc--; argv++;
         }
 
-        if (do_ipv6 == AF_UNSPEC && filter.tb)
+        if (do_ipv6 == AF_UNSPEC && filter.tb) {
                 do_ipv6 = AF_INET;
+        }
 
-        if (rtnl_open(&rth, 0) < 0)
+        if (rtnl_open(&rth, 0) < 0) {
                 exit(1);
+        }
 
         ll_init_map(&rth);
 
@@ -552,8 +583,7 @@ int iproute_get(int argc, char **argv)
         }
 
         if (req.r.rtm_dst_len == 0) {
-                fprintf(stderr, "need at least destination address\n");
-                exit(1);
+                error_msg_and_die("need at least destination address");
         }
 
         if (rtnl_open(&rth, 0) < 0)
@@ -566,25 +596,27 @@ int iproute_get(int argc, char **argv)
 
                 if (idev) {
                         if ((idx = ll_name_to_index(idev)) == 0) {
-                                fprintf(stderr, "Cannot find device \"%s\"\n", idev);
+                                error_msg("Cannot find device \"%s\"", idev);
                                 return -1;
                         }
                         addattr32(&req.n, sizeof(req), RTA_IIF, idx);
                 }
                 if (odev) {
                         if ((idx = ll_name_to_index(odev)) == 0) {
-                                fprintf(stderr, "Cannot find device \"%s\"\n", odev);
+                                error_msg("Cannot find device \"%s\"", odev);
                                 return -1;
                         }
                         addattr32(&req.n, sizeof(req), RTA_OIF, idx);
                 }
         }
 
-        if (req.r.rtm_family == AF_UNSPEC)
+        if (req.r.rtm_family == AF_UNSPEC) {
                 req.r.rtm_family = AF_INET;
+        }
 
-        if (rtnl_talk(&rth, &req.n, 0, 0, &req.n, NULL, NULL) < 0)
+        if (rtnl_talk(&rth, &req.n, 0, 0, &req.n, NULL, NULL) < 0) {
                 exit(2);
+        }
 
         if (connected && !from_ok) {
                 struct rtmsg *r = NLMSG_DATA(&req.n);
@@ -592,17 +624,16 @@ int iproute_get(int argc, char **argv)
                 struct rtattr * tb[RTA_MAX+1];
 
                 if (print_route(NULL, &req.n, (void*)stdout) < 0) {
-                        fprintf(stderr, "An error :-)\n");
-                        exit(1);
+                        error_msg_and_die("An error :-)");
                 }
 
                 if (req.n.nlmsg_type != RTM_NEWROUTE) {
-                        fprintf(stderr, "Not a route?\n");
+                        error_msg("Not a route?");
                         return -1;
                 }
                 len -= NLMSG_LENGTH(sizeof(*r));
                 if (len < 0) {
-                        fprintf(stderr, "Wrong len %d\n", len);
+                        error_msg("Wrong len %d", len);
                         return -1;
                 }
 
@@ -613,25 +644,28 @@ int iproute_get(int argc, char **argv)
                         tb[RTA_PREFSRC]->rta_type = RTA_SRC;
                         r->rtm_src_len = 8*RTA_PAYLOAD(tb[RTA_PREFSRC]);
                 } else if (!tb[RTA_SRC]) {
-                        fprintf(stderr, "Failed to connect the route\n");
+                        error_msg("Failed to connect the route");
                         return -1;
                 }
-                if (!odev && tb[RTA_OIF])
+                if (!odev && tb[RTA_OIF]) {
                         tb[RTA_OIF]->rta_type = 0;
-                if (tb[RTA_GATEWAY])
+                }
+                if (tb[RTA_GATEWAY]) {
                         tb[RTA_GATEWAY]->rta_type = 0;
-                if (!idev && tb[RTA_IIF])
+                }
+                if (!idev && tb[RTA_IIF]) {
                         tb[RTA_IIF]->rta_type = 0;
+                }
                 req.n.nlmsg_flags = NLM_F_REQUEST;
                 req.n.nlmsg_type = RTM_GETROUTE;
 
-                if (rtnl_talk(&rth, &req.n, 0, 0, &req.n, NULL, NULL) < 0)
+                if (rtnl_talk(&rth, &req.n, 0, 0, &req.n, NULL, NULL) < 0) {
                         exit(2);
+                }
         }
 
         if (print_route(NULL, &req.n, (void*)stdout) < 0) {
-                fprintf(stderr, "An error :-)\n");
-                exit(1);
+                error_msg_and_die("An error :-)");
         }
 
         exit(0);
@@ -646,36 +680,45 @@ void iproute_reset_filter()
 
 int do_iproute(int argc, char **argv)
 {
-        if (argc < 1)
+        if (argc < 1) {
                 return iproute_list(0, NULL);
+        }
         
-        if (matches(*argv, "add") == 0)
+        if (matches(*argv, "add") == 0) {
                 return iproute_modify(RTM_NEWROUTE, NLM_F_CREATE|NLM_F_EXCL,
                                       argc-1, argv+1);
-        if (matches(*argv, "change") == 0 || strcmp(*argv, "chg") == 0)
+        }
+        if (matches(*argv, "change") == 0 || strcmp(*argv, "chg") == 0) {
                 return iproute_modify(RTM_NEWROUTE, NLM_F_REPLACE,
                                       argc-1, argv+1);
-        if (matches(*argv, "replace") == 0)
+        }
+        if (matches(*argv, "replace") == 0) {
                 return iproute_modify(RTM_NEWROUTE, NLM_F_CREATE|NLM_F_REPLACE,
                                       argc-1, argv+1);
-        if (matches(*argv, "prepend") == 0)
+        }
+        if (matches(*argv, "prepend") == 0) {
                 return iproute_modify(RTM_NEWROUTE, NLM_F_CREATE,
                                       argc-1, argv+1);
-        if (matches(*argv, "append") == 0)
+        }
+        if (matches(*argv, "append") == 0) {
                 return iproute_modify(RTM_NEWROUTE, NLM_F_CREATE|NLM_F_APPEND,
                                       argc-1, argv+1);
-        if (matches(*argv, "test") == 0)
+        }
+        if (matches(*argv, "test") == 0) {
                 return iproute_modify(RTM_NEWROUTE, NLM_F_EXCL,
                                       argc-1, argv+1);
-        if (matches(*argv, "delete") == 0)
+        }
+        if (matches(*argv, "delete") == 0) {
                 return iproute_modify(RTM_DELROUTE, 0,
                                       argc-1, argv+1);
+        }
         if (matches(*argv, "list") == 0 || matches(*argv, "show") == 0
-            || matches(*argv, "lst") == 0)
+            || matches(*argv, "lst") == 0) {
                 return iproute_list(argc-1, argv+1);
-        if (matches(*argv, "get") == 0)
+        }
+        if (matches(*argv, "get") == 0) {
                 return iproute_get(argc-1, argv+1);
-        fprintf(stderr, "Command \"%s\" is unknown, try \"ip route help\".\n", *argv);
-        exit(-1);
+        }
+        error_msg_and_die("Command \"%s\" is unknown, try \"ip route help\".", *argv);
 }