Oops. Since dirent.h depends on BB_FEATURE_SH_TAB_COMPLETION, put it

[oweals/busybox.git] / ping.c

diff --git a/ping.c b/ping.c
index 8276dda4b480919da2dead377cadee447a586363..50c7ce6e64f98344996b7369adaee3eab9afe725 100644 (file)
--- a/ping.c
+++ b/ping.c
@@ -1,6 +1,6 @@
 /* vi: set sw=4 ts=4: */
 /*
- * $Id: ping.c,v 1.31 2001/01/22 22:48:42 andersen Exp $
+ * $Id: ping.c,v 1.38 2001/02/20 06:14:08 andersen Exp $
  * Mini ping implementation for busybox
  *
  * Copyright (C) 1999 by Randolph Chung <tausq@debian.org>
@@ -31,11 +31,6 @@
  * Original copyright notice is retained at the end of this file.
  */
 
-#warning This applet has moved to netkit-tiny.  After BusyBox 0.49, this
-#warning applet will be removed from BusyBox.  All maintainence efforts
-#warning should be done in the netkit-tiny source tree.
-
-#include "busybox.h"
 #include <sys/param.h>
 #include <sys/socket.h>
 #include <sys/file.h>
@@ -51,6 +46,10 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <errno.h>
+#include <unistd.h>
+#include <string.h>
+#include <stdlib.h>
+#include "busybox.h"
 
 
 /* It turns out that libc5 doesn't have proper icmp support
@@ -58,7 +57,7 @@
 #if ! defined __GLIBC__ && ! defined __UCLIBC__
 typedef unsigned int socklen_t;
 
-#define        ICMP_MINLEN     8                               /* abs minimum */
+static const int ICMP_MINLEN = 8;                              /* abs minimum */
 
 struct icmp_ra_addr
 {
@@ -134,13 +133,13 @@ struct icmp
 };
 #endif
 
-#define DEFDATALEN      56
-#define        MAXIPLEN        60
-#define        MAXICMPLEN      76
-#define        MAXPACKET       65468
+static const int DEFDATALEN = 56;
+static const int MAXIPLEN = 60;
+static const int MAXICMPLEN = 76;
+static const int MAXPACKET = 65468;
 #define        MAX_DUP_CHK     (8 * 128)
-#define MAXWAIT         10
-#define PINGINTERVAL    1              /* second */
+static const int MAXWAIT = 10;
+static const int PINGINTERVAL = 1;             /* second */
 
 #define O_QUIET         (1 << 0)
 
@@ -204,7 +203,7 @@ static void ping(const char *host)
 
        pingaddr.sin_family = AF_INET;
        if (!(h = gethostbyname(host))) {
-               error_msg("unknown host %s\n", host);
+               error_msg("unknown host %s", host);
                exit(1);
        }
        memcpy(&pingaddr.sin_addr, h->h_addr, sizeof(pingaddr.sin_addr));
@@ -252,7 +251,7 @@ extern int ping_main(int argc, char **argv)
        argc--;
        argv++;
        if (argc < 1)
-               usage(ping_usage);
+               show_usage();
        ping(*argv);
        return EXIT_SUCCESS;
 }
@@ -262,7 +261,7 @@ extern int ping_main(int argc, char **argv)
 static char *hostname = NULL;
 static struct sockaddr_in pingaddr;
 static int pingsock = -1;
-static int datalen = DEFDATALEN;
+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;
@@ -325,7 +324,7 @@ static void sendping(int junk)
        if (i < 0)
                perror_msg_and_die("sendto");
        else if ((size_t)i != sizeof(packet))
-               error_msg_and_die("ping wrote %d chars; %d expected\n", i,
+               error_msg_and_die("ping wrote %d chars; %d expected", i,
                           (int)sizeof(packet));
 
        signal(SIGALRM, sendping);
@@ -420,7 +419,7 @@ static void unpack(char *buf, int sz, struct sockaddr_in *from)
                printf("\n");
        } else 
                if (icmppkt->icmp_type != ICMP_ECHO)
-                       error_msg("Warning: Got ICMP %d (%s)\n",
+                       error_msg("Warning: Got ICMP %d (%s)",
                                        icmppkt->icmp_type, icmp_type_name (icmppkt->icmp_type));
 }
 
@@ -438,7 +437,7 @@ static void ping(const char *host)
        if ((pingsock = socket(AF_INET, SOCK_RAW,
                                                   (proto ? proto->p_proto : 1))) < 0) {        /* 1 == ICMP */
                if (errno == EPERM)
-                       error_msg_and_die("permission denied. (are you root?)\n");
+                       error_msg_and_die("permission denied. (are you root?)");
                else
                        perror_msg_and_die("creating a raw socket");
        }
@@ -450,12 +449,12 @@ static void ping(const char *host)
 
        pingaddr.sin_family = AF_INET;
        if (!(h = gethostbyname(host))) {
-               error_msg("unknown host %s\n", host);
+               error_msg("unknown host %s", host);
                exit(1);
        }
 
        if (h->h_addrtype != AF_INET) {
-               error_msg("unknown address type; only AF_INET is currently supported.\n");
+               error_msg("unknown address type; only AF_INET is currently supported.");
                exit(1);
        }
 
@@ -508,6 +507,8 @@ extern int ping_main(int argc, char **argv)
 {
        char *thisarg;
 
+       datalen = DEFDATALEN; /* initialized here rather than in global scope to work around gcc bug */
+
        argc--;
        argv++;
        options = 0;
@@ -521,24 +522,24 @@ extern int ping_main(int argc, char **argv)
                        break;
                case 'c':
                        if (--argc <= 0)
-                               usage(ping_usage);
+                               show_usage();
                        argv++;
                        pingcount = atoi(*argv);
                        break;
                case 's':
                        if (--argc <= 0)
-                               usage(ping_usage);
+                               show_usage();
                        argv++;
                        datalen = atoi(*argv);
                        break;
                default:
-                       usage(ping_usage);
+                       show_usage();
                }
                argc--;
                argv++;
        }
        if (argc < 1)
-               usage(ping_usage);
+               show_usage();
 
        myid = getpid() & 0xFFFF;
        ping(*argv);