cleanups: unnecessary casts, unified const_1, eliminate cross-.c file

prototypes (heresy!), add spaces in places like "flags&NETSTAT_CONNECTED",
removed unused #defines, #ifdef -> #if, use uint32_t for ipv4 addrs.

1 files changed, 19 insertions, 21 deletions

diff --git a/networking/traceroute.c b/networking/traceroute.c
index 5eac6cd1e..47775aa8a 100644
--- a/networking/traceroute.c
+++ b/networking/traceroute.c
@@ -207,7 +207,6 @@
 //#undef CONFIG_FEATURE_TRACEROUTE_USE_ICMP
 //#define CONFIG_FEATURE_TRACEROUTE_USE_ICMP
 
-#include "inet_common.h"
 
 #include <net/if.h>
 #include <arpa/inet.h>
@@ -217,6 +216,7 @@
 #include <netinet/ip_icmp.h>
 
 #include "busybox.h"
+#include "inet_common.h"
 
 
 /*
@@ -803,7 +803,8 @@ inetname(struct sockaddr_in *from)
         char name[257];
 
         if (!nflag && from->sin_addr.s_addr != INADDR_ANY) {
-                if (INET_rresolve(name, sizeof(name), from, 0x4000, 0xffffffff) >= 0)
+                if (INET_rresolve(name, sizeof(name), from, 0x4000,
+                                                0xffffffff) >= 0)
                         n = name;
         }
         ina = inet_ntoa(from->sin_addr);
@@ -842,7 +843,7 @@ gethostinfo(const char *host)
 
         hi = xzalloc(sizeof(*hi));
         addr = inet_addr(host);
-        if ((int32_t)addr != -1) {
+        if (addr != 0xffffffff) {
                 hi->name = xstrdup(host);
                 hi->n = 1;
                 hi->addrs = xzalloc(sizeof(hi->addrs[0]));
@@ -888,8 +889,6 @@ getaddr(uint32_t *ap, const char *host)
 int
 traceroute_main(int argc, char *argv[])
 {
-        static const int on = 1;
-
         int code, n;
         unsigned char *outp;
         uint32_t *ap;
@@ -1043,19 +1042,19 @@ traceroute_main(int argc, char *argv[])
 
         /* Insure the socket fds won't be 0, 1 or 2 */
         do n = xopen(bb_dev_null, O_RDONLY); while (n < 2);
-        if (n > 2)
-                close(n);
+        while (n > 2)
+                close(n--);
 
         s = xsocket(AF_INET, SOCK_RAW, IPPROTO_ICMP);
 
 #if TRACEROUTE_SO_DEBUG
         if (op & USAGE_OP_DEBUG)
-                (void)setsockopt(s, SOL_SOCKET, SO_DEBUG, (char *)&on,
-                    sizeof(on));
+                setsockopt(s, SOL_SOCKET, SO_DEBUG,
+                                &const_int_1, sizeof(const_int_1));
 #endif
         if (op & USAGE_OP_BYPASS_ROUTE)
-                (void)setsockopt(s, SOL_SOCKET, SO_DONTROUTE, (char *)&on,
-                    sizeof(on));
+                setsockopt(s, SOL_SOCKET, SO_DONTROUTE,
+                                &const_int_1, sizeof(const_int_1));
 
         sndsock = xsocket(AF_INET, SOCK_RAW, IPPROTO_RAW);
 
@@ -1087,32 +1086,31 @@ traceroute_main(int argc, char *argv[])
 #endif /* CONFIG_FEATURE_TRACEROUTE_SOURCE_ROUTE */
 
 #ifdef SO_SNDBUF
-        if (setsockopt(sndsock, SOL_SOCKET, SO_SNDBUF, (char *)&packlen,
-            sizeof(packlen)) < 0) {
+        if (setsockopt(sndsock, SOL_SOCKET, SO_SNDBUF, &packlen, sizeof(packlen)) < 0) {
                 bb_perror_msg_and_die("SO_SNDBUF");
         }
 #endif
 #ifdef IP_HDRINCL
-        if (setsockopt(sndsock, IPPROTO_IP, IP_HDRINCL, (char *)&on,
-            sizeof(on)) < 0 && errno != ENOPROTOOPT) {
+        if (setsockopt(sndsock, IPPROTO_IP, IP_HDRINCL, &const_int_1, sizeof(const_int_1)) < 0
+         && errno != ENOPROTOOPT
+        ) {
                 bb_perror_msg_and_die("IP_HDRINCL");
         }
 #else
 #ifdef IP_TOS
-        if (tos_str && setsockopt(sndsock, IPPROTO_IP, IP_TOS,
-            (char *)&tos, sizeof(tos)) < 0) {
+        if (tos_str && setsockopt(sndsock, IPPROTO_IP, IP_TOS, &tos, sizeof(tos)) < 0) {
                 bb_perror_msg_and_die("setsockopt tos %d", tos);
         }
 #endif
 #endif
 #if TRACEROUTE_SO_DEBUG
         if (op & USAGE_OP_DEBUG)
-                (void)setsockopt(sndsock, SOL_SOCKET, SO_DEBUG, (char *)&on,
-                    sizeof(on));
+                setsockopt(sndsock, SOL_SOCKET, SO_DEBUG,
+                                &const_int_1, sizeof(const_int_1));
 #endif
         if (op & USAGE_OP_BYPASS_ROUTE)
-                (void)setsockopt(sndsock, SOL_SOCKET, SO_DONTROUTE, (char *)&on,
-                    sizeof(on));
+                setsockopt(sndsock, SOL_SOCKET, SO_DONTROUTE,
+                                &const_int_1, sizeof(const_int_1));
 
         /* Revert to non-privileged user after opening sockets */
         xsetgid(getgid());