Remove toolbox iftop.

It's nothing like the real iftop, and there's no evidence anyone uses it.
In particular, it hasn't been touched since it was first checked in, back
in 2008. So it's either perfect or unused. Let's find out...

Change-Id: I941adbb67f0166b9b3bd796291060bd67eafa867

2 files changed, 0 insertions, 279 deletions

diff --git a/toolbox/Android.mk b/toolbox/Android.mk
index 8b3241864..85f9415dc 100644
--- a/toolbox/Android.mk
+++ b/toolbox/Android.mk
@@ -32,7 +32,6 @@ BSD_TOOLS := \
 
 OUR_TOOLS := \
     getevent \
-    iftop \
     ioctl \
     log \
     nandread \
diff --git a/toolbox/iftop.c b/toolbox/iftop.c
deleted file mode 100644
index 800c0f0e5..000000000
--- a/toolbox/iftop.c
+++ /dev/null
@@ -1,278 +0,0 @@
-/*
- * Copyright (c) 2008, The Android Open Source Project
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *  * Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- *  * Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the 
- *    distribution.
- *  * Neither the name of Google, Inc. nor the names of its contributors
- *    may be used to endorse or promote products derived from this
- *    software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
- * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-#include <sys/ioctl.h>
-#include <sys/socket.h>
-#include <net/if.h>
-
-#define PROC_NET_DEV    "/proc/net/dev"
-
-#define MAX_IF           8   /* max interfaces we can handle */
-
-#ifndef PAGE_SIZE
-# define PAGE_SIZE 4096
-#endif
-
-#define _STR(s) #s
-#define STR(s) _STR(s)
-
-struct if_stats {
-    char name[IFNAMSIZ];
-
-    unsigned int mtu;
-
-    unsigned int rx_bytes;
-    unsigned int rx_packets;
-    unsigned int rx_errors;
-    unsigned int rx_dropped;
-
-    unsigned int tx_bytes;
-    unsigned int tx_packets;
-    unsigned int tx_errors;
-    unsigned int tx_dropped;
-};
-
-static int get_mtu(const char *if_name)
-{
-    struct ifreq ifr;
-    int s, ret;
-
-    s = socket(AF_INET, SOCK_DGRAM, 0);
-    if (s < 0) {
-        perror("socket");
-        exit(EXIT_FAILURE);
-    }
-
-    memset(&ifr, 0, sizeof(struct ifreq));
-    ifr.ifr_addr.sa_family = AF_INET;
-    strcpy(ifr.ifr_name, if_name);
-
-    ret = ioctl(s, SIOCGIFMTU, &ifr);
-    if (ret < 0) {
-        perror("ioctl");
-        exit(EXIT_FAILURE);
-    }
-
-    ret = close(s);
-    if (ret < 0) {
-        perror("close");
-        exit(EXIT_FAILURE);
-    }
-
-    return ifr.ifr_mtu;
-}
-
-static int get_interfaces(struct if_stats *ifs)
-{
-    char buf[PAGE_SIZE];
-    char *p;
-    int ret, nr, fd;
-
-    fd = open(PROC_NET_DEV, O_RDONLY);
-    if (fd < 0) {
-        perror("open");
-        exit(EXIT_FAILURE);
-    }
-
-    ret = read(fd, buf, sizeof(buf) - 1);
-    if (ret < 0) {
-        perror("read");
-        exit(EXIT_FAILURE);
-    } else if (!ret) {
-        fprintf(stderr, "reading " PROC_NET_DEV " returned premature EOF\n");
-        exit(EXIT_FAILURE);
-    }
-    buf[ret] = '\0';
-
-    /* skip down to the third line */
-    p = strchr(buf, '\n');
-    if (!p) {
-        fprintf(stderr, "parsing " PROC_NET_DEV " failed unexpectedly\n");
-        exit(EXIT_FAILURE);
-    }
-    p = strchr(p + 1, '\n');
-    if (!p) {
-        fprintf(stderr, "parsing " PROC_NET_DEV " failed unexpectedly\n");
-        exit(EXIT_FAILURE);
-    }
-    p += 1;
-
-    /*
-     * Key:
-     * if: (Rx) bytes packets errs drop fifo frame compressed multicast \
-     *     (Tx) bytes packets errs drop fifo colls carrier compressed
-     */
-    for (nr = 0; nr < MAX_IF; nr++) {
-        char *c;
-
-        ret = sscanf(p, "%" STR(IFNAMSIZ) "s", ifs->name);
-        if (ret != 1) {
-            fprintf(stderr, "parsing " PROC_NET_DEV " failed unexpectedly\n");
-            exit(EXIT_FAILURE);
-        }
-
-        /*
-         * This works around a bug in the proc file where large interface names
-         * or Rx byte counts eat the delimiter, breaking sscanf.
-         */
-        c = strchr(ifs->name, ':');
-        if (c)
-            *c = '\0';
-
-        p = strchr(p, ':') + 1;
-
-        ret = sscanf(p, "%u %u %u %u %*u %*u %*u %*u %u %u %u %u %*u %*u "
-                     "%*u %*u\n", &ifs->rx_bytes, &ifs->rx_packets,
-                     &ifs->rx_errors, &ifs->rx_dropped, &ifs->tx_bytes,
-                     &ifs->tx_packets, &ifs->tx_errors, &ifs->tx_dropped);
-        if (ret != 8) {
-            fprintf(stderr, "parsing " PROC_NET_DEV " failed unexpectedly\n");
-            exit(EXIT_FAILURE);
-        }
-
-        ifs->mtu = get_mtu(ifs->name);
-
-        p = strchr(p, '\n') + 1;
-        if (*p == '\0') {
-            nr++;
-            break;
-        }
-
-        ifs++;
-    }
-
-    ret = close(fd);
-    if (ret) {
-        perror("close");
-        exit(EXIT_FAILURE);
-    }
-
-    return nr;
-}
-
-static void print_header(void)
-{
-    printf("               Rx                              Tx\n");
-    printf("%-8s %-5s %-10s %-8s %-5s %-5s %-10s %-8s %-5s %-5s\n",
-           "name", "MTU", "bytes", "packets", "errs", "drpd", "bytes",
-           "packets", "errs", "drpd");
-}
-
-static int print_interfaces(struct if_stats *old, struct if_stats *new, int nr)
-{
-    int i = 0;
-
-    while (nr--) {
-        if (old->rx_packets || old->tx_packets) {
-            printf("%-8s %-5u %-10u %-8u %-5u %-5u %-10u %-8u %-5u %-5u\n",
-                   new->name, new->mtu,
-                   new->rx_bytes - old->rx_bytes,
-                   new->rx_packets - old->rx_packets,
-                   new->rx_errors - old->rx_errors,
-                   new->rx_dropped - old->rx_dropped,
-                   new->tx_bytes - old->tx_bytes,
-                   new->tx_packets - old->tx_packets,
-                   new->tx_errors - old->tx_errors,
-                   new->tx_dropped - old->tx_dropped);
-            i++;
-        }
-        old++;
-        new++;
-    }
-
-    return i;
-}
-
-static void usage(const char *cmd)
-{
-    fprintf(stderr, "usage: %s [ -r repeats] [ -d delay ]\n", cmd);
-}
-
-int iftop_main(int argc, char *argv[])
-{
-    struct if_stats ifs[2][MAX_IF];
-    int count = 0, header_interval = 22, delay = 1, i;
-    unsigned int toggle = 0;
-
-    for (i = 1; i < argc; i++) {
-        if (!strcmp(argv[i], "-d")) {
-            if (i >= argc - 1) {
-                fprintf(stderr, "Option -d requires an argument.\n");
-                exit(EXIT_FAILURE);
-            }
-            delay = atoi(argv[i++]);
-            if (!delay)
-                delay = 1;
-            continue;
-        }
-        if (!strcmp(argv[i], "-r")) {
-            if (i >= argc - 1) {
-                fprintf(stderr, "Option -r requires an argument.\n");
-                exit(EXIT_FAILURE);
-            }
-            header_interval = atoi(argv[i++]);
-            if (header_interval < MAX_IF)
-                header_interval = MAX_IF;
-            continue;
-        }
-        if (!strcmp(argv[i], "-h")) {
-            usage(argv[0]);
-            exit(EXIT_SUCCESS);
-        }
-        usage(argv[0]);
-        exit(EXIT_FAILURE);
-    }
-
-    get_interfaces(ifs[!toggle]);
-    if (header_interval)
-        print_header();
-    while (1) {
-        int nr;
-
-        sleep(delay);
-        nr = get_interfaces(ifs[toggle]);
-        if (header_interval && count + nr > header_interval) {
-            print_header();
-            count = 0;
-        }
-        count += print_interfaces(ifs[!toggle], ifs[toggle], nr);
-        toggle = !toggle;
-    }
-
-    return 0;
-}