diff options
| -rw-r--r-- | networking/ping.c | 57 |
1 files changed, 30 insertions, 27 deletions
diff --git a/networking/ping.c b/networking/ping.c index 7cccfbf..01a9f9a 100644 --- a/networking/ping.c +++ b/networking/ping.c @@ -241,10 +241,11 @@ enum { struct globals { int pingsock; int if_index; - char *opt_I; + char *str_I; len_and_sockaddr *source_lsa; unsigned datalen; - unsigned long ntransmitted, nreceived, nrepeats, pingcount; + unsigned pingcount; /* must be int-sized */ + unsigned long ntransmitted, nreceived, nrepeats; uint16_t myid; unsigned tmin, tmax; /* in us */ unsigned long long tsum; /* in us, sum of all times */ @@ -266,7 +267,7 @@ struct globals { #define pingsock (G.pingsock ) #define if_index (G.if_index ) #define source_lsa (G.source_lsa ) -#define opt_I (G.opt_I ) +#define str_I (G.str_I ) #define datalen (G.datalen ) #define ntransmitted (G.ntransmitted) #define nreceived (G.nreceived ) @@ -570,8 +571,8 @@ static void ping4(len_and_sockaddr *lsa) bb_error_msg_and_die("can't set multicast source interface"); xbind(pingsock, &source_lsa->u.sa, source_lsa->len); } - if (opt_I) - setsockopt(pingsock, SOL_SOCKET, SO_BINDTODEVICE, opt_I, strlen(opt_I) + 1); + if (str_I) + setsockopt(pingsock, SOL_SOCKET, SO_BINDTODEVICE, str_I, strlen(str_I) + 1); /* enable broadcast pings */ setsockopt_broadcast(pingsock); @@ -620,8 +621,8 @@ static void ping6(len_and_sockaddr *lsa) /* untested whether "-I addr" really works for IPv6: */ if (source_lsa) xbind(pingsock, &source_lsa->u.sa, source_lsa->len); - if (opt_I) - setsockopt(pingsock, SOL_SOCKET, SO_BINDTODEVICE, opt_I, strlen(opt_I) + 1); + if (str_I) + setsockopt(pingsock, SOL_SOCKET, SO_BINDTODEVICE, str_I, strlen(str_I) + 1); #ifdef ICMP6_FILTER { @@ -719,34 +720,35 @@ int ping_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; int ping_main(int argc UNUSED_PARAM, char **argv) { len_and_sockaddr *lsa; - char *opt_c, *opt_s; - USE_PING6(sa_family_t af = AF_UNSPEC;) + char *str_s; + int opt; INIT_G(); - /* exactly one argument needed; -v and -q don't mix; -w NUM, -W NUM */ - opt_complementary = "=1:q--v:v--q:w+:W+"; - getopt32(argv, OPT_STRING, &opt_c, &opt_s, &deadline, &timeout, &opt_I); - if (option_mask32 & OPT_c) - pingcount = xatoul(opt_c); // -c - if (option_mask32 & OPT_s) - datalen = xatou16(opt_s); // -s - if (option_mask32 & OPT_I) { // -I - if_index = if_nametoindex(opt_I); + /* exactly one argument needed; -v and -q don't mix; -c NUM, -w NUM, -W NUM */ + opt_complementary = "=1:q--v:v--q:c+:w+:W+"; + opt = getopt32(argv, OPT_STRING, &pingcount, &str_s, &deadline, &timeout, &str_I); + if (opt & OPT_s) + datalen = xatou16(str_s); // -s + if (opt & OPT_I) { // -I + if_index = if_nametoindex(str_I); if (!if_index) { /* TODO: I'm not sure it takes IPv6 unless in [XX:XX..] format */ - source_lsa = xdotted2sockaddr(opt_I, 0); - opt_I = NULL; /* don't try to bind to device later */ + source_lsa = xdotted2sockaddr(str_I, 0); + str_I = NULL; /* don't try to bind to device later */ } } myid = (uint16_t) getpid(); hostname = argv[optind]; #if ENABLE_PING6 - if (option_mask32 & OPT_IPV4) - af = AF_INET; - if (option_mask32 & OPT_IPV6) - af = AF_INET6; - lsa = xhost_and_af2sockaddr(hostname, 0, af); + { + sa_family_t af = AF_UNSPEC; + if (opt & OPT_IPV4) + af = AF_INET; + if (opt & OPT_IPV6) + af = AF_INET6; + lsa = xhost_and_af2sockaddr(hostname, 0, af); + } #else lsa = xhost_and_af2sockaddr(hostname, 0, AF_INET); #endif @@ -765,10 +767,11 @@ int ping_main(int argc UNUSED_PARAM, char **argv) #if ENABLE_PING6 int ping6_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; -int ping6_main(int argc, char **argv) +int ping6_main(int argc UNUSED_PARAM, char **argv) { argv[0] = (char*)"-6"; - return ping_main(argc + 1, argv - 1); + return ping_main(0 /* argc+1 - but it's unused anyway */, + argv - 1); } #endif |