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ping6: resolve interface name to number early.

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gcc is more efficient at truncating int to int16
via cast, use that instead of &.
This commit is contained in:
Denis Vlasenko 2006-09-02 16:16:23 +00:00
parent cb6874cc66
commit db7f2e5881
2 changed files with 9 additions and 8 deletions
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2
networking/ping.c
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@ -416,7 +416,7 @@ int ping_main(int argc, char **argv)
if (argc < 1)
bb_show_usage();
myid = getpid() & 0xFFFF;
myid = (int16_t) getpid();
ping(*argv);
return EXIT_SUCCESS;
}

15
networking/ping6.c
View File

@ -146,7 +146,7 @@ int ping6_main(int argc, char **argv)
static struct sockaddr_in6 pingaddr;
static int pingsock = -1;
static int datalen; /* intentionally uninitialized to work around gcc bug */
static char* ifname;
static int if_index;
static long ntransmitted, nreceived, nrepeats, pingcount;
static int myid, options;
@ -367,10 +367,8 @@ static void ping(const char *host)
setsockopt(pingsock, SOL_IPV6, IPV6_HOPLIMIT, (char *) &sockopt,
sizeof(sockopt));
if (ifname) {
if ((pingaddr.sin6_scope_id = if_nametoindex(ifname)) == 0)
bb_error_msg_and_die("%s: invalid interface name", ifname);
}
if (if_index)
pingaddr.sin6_scope_id = if_index;
printf("PING %s (%s): %d data bytes\n",
hostent->h_name,
@ -455,7 +453,10 @@ int ping6_main(int argc, char **argv)
if (--argc <= 0)
bb_show_usage();
argv++;
ifname = *argv;
if_index = if_nametoindex(*argv);
if (!if_index)
bb_error_msg_and_die(
"%s: invalid interface name", *argv);
break;
default:
bb_show_usage();
@ -466,7 +467,7 @@ int ping6_main(int argc, char **argv)
if (argc < 1)
bb_show_usage();
myid = getpid() & 0xFFFF;
myid = (int16_t) getpid();
ping(*argv);
return EXIT_SUCCESS;
}