diff options
Diffstat (limited to 'networking/traceroute.c')
| -rw-r--r-- | networking/traceroute.c | 40 |
1 files changed, 19 insertions, 21 deletions
diff --git a/networking/traceroute.c b/networking/traceroute.c index 5eac6cd..47775aa 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()); |