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-rw-r--r--networking/ping.c41
1 files changed, 18 insertions, 23 deletions
diff --git a/networking/ping.c b/networking/ping.c
index 476c15cea..eaaf91a04 100644
--- a/networking/ping.c
+++ b/networking/ping.c
@@ -1,6 +1,6 @@
/* vi: set sw=4 ts=4: */
/*
- * $Id: ping.c,v 1.47 2001/10/24 04:59:56 andersen Exp $
+ * $Id: ping.c,v 1.48 2002/02/01 16:54:00 kraai Exp $
* Mini ping implementation for busybox
*
* Copyright (C) 1999 by Randolph Chung <tausq@debian.org>
@@ -175,13 +175,6 @@ static int in_cksum(unsigned short *buf, int sz)
/* simple version */
#ifndef CONFIG_FEATURE_FANCY_PING
-static char *hostname = NULL;
-
-static void noresp(int ign)
-{
- printf("No response from %s\n", hostname);
- exit(0);
-}
static void ping(const char *host)
{
@@ -191,6 +184,12 @@ static void ping(const char *host)
int pingsock, c;
char packet[DEFDATALEN + MAXIPLEN + MAXICMPLEN];
+ void noresp(int ign)
+ {
+ printf("No response from %s\n", h->h_name);
+ exit(0);
+ }
+
pingsock = create_icmp_socket();
memset(&pingaddr, 0, sizeof(struct sockaddr_in));
@@ -198,7 +197,6 @@ static void ping(const char *host)
pingaddr.sin_family = AF_INET;
h = xgethostbyname(host);
memcpy(&pingaddr.sin_addr, h->h_addr, sizeof(pingaddr.sin_addr));
- hostname = h->h_name;
pkt = (struct icmp *) packet;
memset(pkt, 0, sizeof(packet));
@@ -233,7 +231,7 @@ static void ping(const char *host)
break;
}
}
- printf("%s is alive!\n", hostname);
+ printf("%s is alive!\n", h->h_name);
return;
}
@@ -249,16 +247,17 @@ extern int ping_main(int argc, char **argv)
#else /* ! CONFIG_FEATURE_FANCY_PING */
/* full(er) version */
-static char *hostname = NULL;
static struct sockaddr_in pingaddr;
static int pingsock = -1;
static int datalen; /* intentionally uninitialized to work around gcc bug */
-static long ntransmitted = 0, nreceived = 0, nrepeats = 0, pingcount = 0;
-static int myid = 0, options = 0;
-static unsigned long tmin = ULONG_MAX, tmax = 0, tsum = 0;
+static long ntransmitted, nreceived, nrepeats, pingcount;
+static int myid, options;
+static unsigned long tmin = ULONG_MAX, tmax, tsum;
static char rcvd_tbl[MAX_DUP_CHK / 8];
+struct hostent *hostent;
+
static void sendping(int);
static void pingstats(int);
static void unpack(char *, int, struct sockaddr_in *);
@@ -271,7 +270,7 @@ static void pingstats(int junk)
signal(SIGINT, SIG_IGN);
- printf("\n--- %s ping statistics ---\n", hostname);
+ printf("\n--- %s ping statistics ---\n", hostent->h_name);
printf("%ld packets transmitted, ", ntransmitted);
printf("%ld packets received, ", nreceived);
if (nrepeats)
@@ -416,8 +415,6 @@ static void unpack(char *buf, int sz, struct sockaddr_in *from)
static void ping(const char *host)
{
- struct hostent *h;
- char buf[MAXHOSTNAMELEN];
char packet[datalen + MAXIPLEN + MAXICMPLEN];
int sockopt;
@@ -426,13 +423,11 @@ static void ping(const char *host)
memset(&pingaddr, 0, sizeof(struct sockaddr_in));
pingaddr.sin_family = AF_INET;
- h = xgethostbyname(host);
- if (h->h_addrtype != AF_INET)
+ hostent = xgethostbyname(host);
+ if (hostent->h_addrtype != AF_INET)
error_msg_and_die("unknown address type; only AF_INET is currently supported.");
- memcpy(&pingaddr.sin_addr, h->h_addr, sizeof(pingaddr.sin_addr));
- strncpy(buf, h->h_name, sizeof(buf) - 1);
- hostname = buf;
+ memcpy(&pingaddr.sin_addr, hostent->h_addr, sizeof(pingaddr.sin_addr));
/* enable broadcast pings */
sockopt = 1;
@@ -445,7 +440,7 @@ static void ping(const char *host)
sizeof(sockopt));
printf("PING %s (%s): %d data bytes\n",
- hostname,
+ hostent->h_name,
inet_ntoa(*(struct in_addr *) &pingaddr.sin_addr.s_addr),
datalen);