Stuf
This commit is contained in:
Eric Andersen
parent
d00c262847
commit
485b9550fd
@ -1,3 +1,12 @@
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0.38
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* New Apps: ping and hostname contributed by Randolph Chung
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<tausq@debian.org>
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* on reboot, init called 'umount -a -n', which caused errors
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when BB_MTAB was not enabled. Changed to 'umount -a',
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which does the right thing.
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-Erik Andrsen
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0.38
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0.38
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* Fixed a segfault in 'umount -a' when a badly formed /etc/fstab
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* Fixed a segfault in 'umount -a' when a badly formed /etc/fstab
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file existed.
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file existed.
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4
TODO
4
TODO
@ -14,8 +14,8 @@ around to it some time. If you have any good ideas, please let me know.
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* poweroff
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* poweroff
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* du
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* du
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* mkfifo
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* mkfifo
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* hostname/dnsdomainname
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* dnsdomainname
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* ping/traceroute/nslookup/netstat
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* traceroute/nslookup/netstat
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* rdate
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* rdate
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* hwclock
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* hwclock
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* login/getty
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* login/getty
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@ -69,6 +69,9 @@ static const struct Applet applets[] = {
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#ifdef BB_HALT //sbin
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#ifdef BB_HALT //sbin
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{"halt", halt_main},
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{"halt", halt_main},
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#endif
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#endif
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#ifdef BB_HOSTNAME //bin
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{"hostname", hostname_main},
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#endif
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#ifdef BB_INIT //sbin
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#ifdef BB_INIT //sbin
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{"init", init_main},
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{"init", init_main},
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#endif
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#endif
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@ -123,6 +126,9 @@ static const struct Applet applets[] = {
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#ifdef BB_MV //bin
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#ifdef BB_MV //bin
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{"mv", mv_main},
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{"mv", mv_main},
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#endif
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#endif
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#ifdef BB_PING //bin
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{"ping", ping_main},
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#endif
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#ifdef BB_PRINTF //usr/bin
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#ifdef BB_PRINTF //usr/bin
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{"printf", printf_main},
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{"printf", printf_main},
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#endif
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#endif
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@ -69,6 +69,9 @@ static const struct Applet applets[] = {
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#ifdef BB_HALT //sbin
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#ifdef BB_HALT //sbin
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{"halt", halt_main},
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{"halt", halt_main},
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#endif
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#endif
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#ifdef BB_HOSTNAME //bin
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{"hostname", hostname_main},
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#endif
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#ifdef BB_INIT //sbin
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#ifdef BB_INIT //sbin
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{"init", init_main},
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{"init", init_main},
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#endif
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#endif
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@ -123,6 +126,9 @@ static const struct Applet applets[] = {
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#ifdef BB_MV //bin
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#ifdef BB_MV //bin
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{"mv", mv_main},
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{"mv", mv_main},
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#endif
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#endif
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#ifdef BB_PING //bin
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{"ping", ping_main},
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#endif
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#ifdef BB_PRINTF //usr/bin
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#ifdef BB_PRINTF //usr/bin
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{"printf", printf_main},
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{"printf", printf_main},
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#endif
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#endif
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@ -22,6 +22,7 @@
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#define BB_DEALLOCVT
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#define BB_DEALLOCVT
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#define BB_GREP
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#define BB_GREP
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//#define BB_HALT
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//#define BB_HALT
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#define BB_HOSTNAME
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#define BB_INIT
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#define BB_INIT
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#define BB_KILL
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#define BB_KILL
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//#define BB_LENGTH
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//#define BB_LENGTH
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@ -42,6 +43,7 @@
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//#define BB_MT
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//#define BB_MT
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//#define BB_MTAB
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//#define BB_MTAB
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#define BB_MV
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#define BB_MV
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#define BB_PING
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//#define BB_PRINTF
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//#define BB_PRINTF
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#define BB_PS
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#define BB_PS
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#define BB_PWD
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#define BB_PWD
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126
hostname.c
Normal file
126
hostname.c
Normal file
@ -0,0 +1,126 @@
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/*
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* $Id: hostname.c,v 1.1 1999/12/07 23:14:59 andersen Exp $
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* Mini hostname implementation for busybox
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*
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* Copyright (C) 1999 by Randolph Chung <tausq@debian.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "internal.h"
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#include <errno.h>
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#include <getopt.h>
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#include <arpa/inet.h>
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#include <netdb.h>
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#include <unistd.h>
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#include <stdio.h>
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static const char* hostname_usage = "hostname [OPTION] {hostname | -F file}\n\n"
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"Options:\n"
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"\t-s, --short\t\tshort\n"
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"\t-i, --ip-address\t\taddresses for the hostname\n"
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"\t-d, --domain\t\tDNS domain name\n"
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"If a hostname is given, or a file is given with the -F parameter, the host\n"
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"name will be set\n";
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static char short_opts[] = "sidF:";
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static const struct option long_opts[] = {
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{ "short", no_argument, NULL, 's' },
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{ "ip-address", no_argument, NULL, 'i' },
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{ "domain", no_argument, NULL, 'd' },
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{ NULL, 0, NULL, 0 }
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};
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void do_sethostname(char *s, int isfile)
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{
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FILE *f;
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char buf[255];
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if (!s) return;
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if (!isfile) {
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if (sethostname(s, strlen(s)) < 0) {
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if (errno == EPERM)
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fprintf(stderr, "hostname: you must be root to change the hostname\n");
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else
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perror("sethostname");
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exit(1);
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}
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} else {
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if ((f = fopen(s, "r")) == NULL) {
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perror(s);
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exit(1);
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} else {
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fgets(buf, 255, f);
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fclose(f);
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if (buf[strlen(buf)-1] == '\n') buf[strlen(buf)-1] = 0;
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if (sethostname(buf, strlen(buf)) < 0) {
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perror("sethostname");
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exit(1);
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}
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}
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}
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}
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int hostname_main(int argc, char **argv)
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{
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int c;
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int opt_short = 0;
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int opt_domain = 0;
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int opt_ip = 0;
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int opt_file = 0;
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struct hostent *h;
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char *filename = NULL;
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char buf[255];
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char *s = NULL;
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if (argc < 1) usage(hostname_usage);
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while ((c = getopt_long(argc, argv, short_opts, long_opts, NULL)) != -1) {
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switch (c) {
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case 's': opt_short = 1; break;
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case 'i': opt_ip = 1; break;
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case 'd': opt_domain = 1; break;
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case 'F': opt_file = 1; filename = optarg; break;
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default: usage(hostname_usage);
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}
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}
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if (optind < argc) {
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do_sethostname(argv[optind], 0);
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} else if (opt_file) {
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do_sethostname(filename, 1);
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} else {
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gethostname(buf, 255);
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if (opt_short) {
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s = strchr(buf, '.');
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if (!s) s = buf; *s = 0;
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printf("%s\n", buf);
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} else if (opt_domain) {
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s = strchr(buf, '.');
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printf("%s\n", (s ? s+1 : ""));
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} else if (opt_ip) {
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h = gethostbyname(buf);
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if (!h) {
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printf("Host not found\n");
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exit(1);
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}
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printf("%s\n", inet_ntoa(*(struct in_addr *)(h->h_addr)));
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} else {
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printf("%s\n", buf);
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}
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}
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return 0;
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}
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10
init.c
10
init.c
@ -151,19 +151,11 @@ void message(int device, char *fmt, ...)
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void set_term( int fd)
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void set_term( int fd)
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{
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{
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struct termios tty;
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struct termios tty;
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#if 0
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static const char control_characters[] = {
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'\003', '\034', '\177', '\030', '\004', '\0',
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'\1', '\0', '\021', '\023', '\032', '\0', '\022',
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'\017', '\027', '\026', '\0'
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};
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#else
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static const char control_characters[] = {
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static const char control_characters[] = {
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'\003', '\034', '\177', '\025', '\004', '\0',
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'\003', '\034', '\177', '\025', '\004', '\0',
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'\1', '\0', '\021', '\023', '\032', '\0', '\022',
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'\1', '\0', '\021', '\023', '\032', '\0', '\022',
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'\017', '\027', '\026', '\0'
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'\017', '\027', '\026', '\0'
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};
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};
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#endif
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tcgetattr(fd, &tty);
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tcgetattr(fd, &tty);
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@ -386,7 +378,7 @@ goodnight:
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static void shutdown_system(void)
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static void shutdown_system(void)
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{
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{
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const char* const swap_off_cmd[] = { "swapoff", "swapoff", "-a", 0};
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const char* const swap_off_cmd[] = { "swapoff", "swapoff", "-a", 0};
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const char* const umount_cmd[] = { "umount", "umount", "-a", "-n", 0};
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const char* const umount_cmd[] = { "umount", "umount", "-a", 0};
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#ifndef DEBUG_INIT
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#ifndef DEBUG_INIT
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/* Allow Ctrl-Alt-Del to reboot system. */
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/* Allow Ctrl-Alt-Del to reboot system. */
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10
init/init.c
10
init/init.c
@ -151,19 +151,11 @@ void message(int device, char *fmt, ...)
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void set_term( int fd)
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void set_term( int fd)
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{
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{
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struct termios tty;
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struct termios tty;
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#if 0
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static const char control_characters[] = {
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'\003', '\034', '\177', '\030', '\004', '\0',
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'\1', '\0', '\021', '\023', '\032', '\0', '\022',
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'\017', '\027', '\026', '\0'
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};
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#else
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static const char control_characters[] = {
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static const char control_characters[] = {
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'\003', '\034', '\177', '\025', '\004', '\0',
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'\003', '\034', '\177', '\025', '\004', '\0',
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'\1', '\0', '\021', '\023', '\032', '\0', '\022',
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'\1', '\0', '\021', '\023', '\032', '\0', '\022',
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'\017', '\027', '\026', '\0'
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'\017', '\027', '\026', '\0'
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};
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};
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#endif
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tcgetattr(fd, &tty);
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tcgetattr(fd, &tty);
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@ -386,7 +378,7 @@ goodnight:
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static void shutdown_system(void)
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static void shutdown_system(void)
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{
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{
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const char* const swap_off_cmd[] = { "swapoff", "swapoff", "-a", 0};
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const char* const swap_off_cmd[] = { "swapoff", "swapoff", "-a", 0};
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const char* const umount_cmd[] = { "umount", "umount", "-a", "-n", 0};
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const char* const umount_cmd[] = { "umount", "umount", "-a", 0};
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|
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#ifndef DEBUG_INIT
|
#ifndef DEBUG_INIT
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/* Allow Ctrl-Alt-Del to reboot system. */
|
/* Allow Ctrl-Alt-Del to reboot system. */
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@ -72,6 +72,7 @@ extern int mkfs_minix_main(int argc, char **argv);
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extern int find_main(int argc, char** argv);
|
extern int find_main(int argc, char** argv);
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extern int grep_main(int argc, char** argv);
|
extern int grep_main(int argc, char** argv);
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extern int halt_main(int argc, char** argv);
|
extern int halt_main(int argc, char** argv);
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|
extern int hostname_main(int argc, char** argv);
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extern int init_main(int argc, char** argv);
|
extern int init_main(int argc, char** argv);
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extern int kill_main(int argc, char** argv);
|
extern int kill_main(int argc, char** argv);
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extern int length_main(int argc, char** argv);
|
extern int length_main(int argc, char** argv);
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@ -91,6 +92,7 @@ extern int mnc_main(int argc, char** argv);
|
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extern int mount_main(int argc, char** argv);
|
extern int mount_main(int argc, char** argv);
|
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extern int mt_main(int argc, char** argv);
|
extern int mt_main(int argc, char** argv);
|
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extern int mv_main(int argc, char** argv);
|
extern int mv_main(int argc, char** argv);
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|
extern int ping_main(int argc, char **argv);
|
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extern int printf_main(int argc, char** argv);
|
extern int printf_main(int argc, char** argv);
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extern int ps_main(int argc, char** argv);
|
extern int ps_main(int argc, char** argv);
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extern int pwd_main(int argc, char** argv);
|
extern int pwd_main(int argc, char** argv);
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126
networking/hostname.c
Normal file
126
networking/hostname.c
Normal file
@ -0,0 +1,126 @@
|
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|
/*
|
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|
* $Id: hostname.c,v 1.1 1999/12/07 23:14:59 andersen Exp $
|
||||||
|
* Mini hostname implementation for busybox
|
||||||
|
*
|
||||||
|
* Copyright (C) 1999 by Randolph Chung <tausq@debian.org>
|
||||||
|
*
|
||||||
|
* This program is free software; you can redistribute it and/or modify
|
||||||
|
* it under the terms of the GNU General Public License as published by
|
||||||
|
* the Free Software Foundation; either version 2 of the License, or
|
||||||
|
* (at your option) any later version.
|
||||||
|
*
|
||||||
|
* This program is distributed in the hope that it will be useful,
|
||||||
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||||
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||||
|
* General Public License for more details.
|
||||||
|
*
|
||||||
|
* You should have received a copy of the GNU General Public License
|
||||||
|
* along with this program; if not, write to the Free Software
|
||||||
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||||
|
*/
|
||||||
|
|
||||||
|
#include "internal.h"
|
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|
#include <errno.h>
|
||||||
|
#include <getopt.h>
|
||||||
|
#include <arpa/inet.h>
|
||||||
|
#include <netdb.h>
|
||||||
|
#include <unistd.h>
|
||||||
|
#include <stdio.h>
|
||||||
|
|
||||||
|
static const char* hostname_usage = "hostname [OPTION] {hostname | -F file}\n\n"
|
||||||
|
"Options:\n"
|
||||||
|
"\t-s, --short\t\tshort\n"
|
||||||
|
"\t-i, --ip-address\t\taddresses for the hostname\n"
|
||||||
|
"\t-d, --domain\t\tDNS domain name\n"
|
||||||
|
"If a hostname is given, or a file is given with the -F parameter, the host\n"
|
||||||
|
"name will be set\n";
|
||||||
|
|
||||||
|
static char short_opts[] = "sidF:";
|
||||||
|
static const struct option long_opts[] = {
|
||||||
|
{ "short", no_argument, NULL, 's' },
|
||||||
|
{ "ip-address", no_argument, NULL, 'i' },
|
||||||
|
{ "domain", no_argument, NULL, 'd' },
|
||||||
|
{ NULL, 0, NULL, 0 }
|
||||||
|
};
|
||||||
|
|
||||||
|
void do_sethostname(char *s, int isfile)
|
||||||
|
{
|
||||||
|
FILE *f;
|
||||||
|
char buf[255];
|
||||||
|
|
||||||
|
if (!s) return;
|
||||||
|
if (!isfile) {
|
||||||
|
if (sethostname(s, strlen(s)) < 0) {
|
||||||
|
if (errno == EPERM)
|
||||||
|
fprintf(stderr, "hostname: you must be root to change the hostname\n");
|
||||||
|
else
|
||||||
|
perror("sethostname");
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
} else {
|
||||||
|
if ((f = fopen(s, "r")) == NULL) {
|
||||||
|
perror(s);
|
||||||
|
exit(1);
|
||||||
|
} else {
|
||||||
|
fgets(buf, 255, f);
|
||||||
|
fclose(f);
|
||||||
|
if (buf[strlen(buf)-1] == '\n') buf[strlen(buf)-1] = 0;
|
||||||
|
if (sethostname(buf, strlen(buf)) < 0) {
|
||||||
|
perror("sethostname");
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
int hostname_main(int argc, char **argv)
|
||||||
|
{
|
||||||
|
int c;
|
||||||
|
int opt_short = 0;
|
||||||
|
int opt_domain = 0;
|
||||||
|
int opt_ip = 0;
|
||||||
|
int opt_file = 0;
|
||||||
|
struct hostent *h;
|
||||||
|
char *filename = NULL;
|
||||||
|
char buf[255];
|
||||||
|
char *s = NULL;
|
||||||
|
|
||||||
|
if (argc < 1) usage(hostname_usage);
|
||||||
|
|
||||||
|
while ((c = getopt_long(argc, argv, short_opts, long_opts, NULL)) != -1) {
|
||||||
|
switch (c) {
|
||||||
|
case 's': opt_short = 1; break;
|
||||||
|
case 'i': opt_ip = 1; break;
|
||||||
|
case 'd': opt_domain = 1; break;
|
||||||
|
case 'F': opt_file = 1; filename = optarg; break;
|
||||||
|
default: usage(hostname_usage);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
if (optind < argc) {
|
||||||
|
do_sethostname(argv[optind], 0);
|
||||||
|
} else if (opt_file) {
|
||||||
|
do_sethostname(filename, 1);
|
||||||
|
} else {
|
||||||
|
gethostname(buf, 255);
|
||||||
|
if (opt_short) {
|
||||||
|
s = strchr(buf, '.');
|
||||||
|
if (!s) s = buf; *s = 0;
|
||||||
|
printf("%s\n", buf);
|
||||||
|
} else if (opt_domain) {
|
||||||
|
s = strchr(buf, '.');
|
||||||
|
printf("%s\n", (s ? s+1 : ""));
|
||||||
|
} else if (opt_ip) {
|
||||||
|
h = gethostbyname(buf);
|
||||||
|
if (!h) {
|
||||||
|
printf("Host not found\n");
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
printf("%s\n", inet_ntoa(*(struct in_addr *)(h->h_addr)));
|
||||||
|
} else {
|
||||||
|
printf("%s\n", buf);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
374
networking/ping.c
Normal file
374
networking/ping.c
Normal file
@ -0,0 +1,374 @@
|
|||||||
|
/*
|
||||||
|
* $Id: ping.c,v 1.1 1999/12/07 23:14:59 andersen Exp $
|
||||||
|
* Mini ping implementation for busybox
|
||||||
|
*
|
||||||
|
* Copyright (C) 1999 by Randolph Chung <tausq@debian.org>
|
||||||
|
*
|
||||||
|
* This program is free software; you can redistribute it and/or modify
|
||||||
|
* it under the terms of the GNU General Public License as published by
|
||||||
|
* the Free Software Foundation; either version 2 of the License, or
|
||||||
|
* (at your option) any later version.
|
||||||
|
*
|
||||||
|
* This program is distributed in the hope that it will be useful,
|
||||||
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||||
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||||
|
* General Public License for more details.
|
||||||
|
*
|
||||||
|
* You should have received a copy of the GNU General Public License
|
||||||
|
* along with this program; if not, write to the Free Software
|
||||||
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||||
|
*
|
||||||
|
* This version of ping is adapted from the ping in netkit-base 0.10,
|
||||||
|
* which is:
|
||||||
|
*
|
||||||
|
* Copyright (c) 1989 The Regents of the University of California.
|
||||||
|
* All rights reserved.
|
||||||
|
*
|
||||||
|
* This code is derived from software contributed to Berkeley by
|
||||||
|
* Mike Muuss.
|
||||||
|
*
|
||||||
|
* Original copyright notice is retained at the end of this file.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#include "internal.h"
|
||||||
|
#include <sys/param.h>
|
||||||
|
#include <sys/socket.h>
|
||||||
|
#include <sys/file.h>
|
||||||
|
#include <sys/time.h>
|
||||||
|
#include <sys/times.h>
|
||||||
|
#include <sys/signal.h>
|
||||||
|
|
||||||
|
#include <netinet/in.h>
|
||||||
|
#include <netinet/ip.h>
|
||||||
|
#include <netinet/ip_icmp.h>
|
||||||
|
#include <arpa/inet.h>
|
||||||
|
#include <netdb.h>
|
||||||
|
#include <stdio.h>
|
||||||
|
#include <stdlib.h>
|
||||||
|
#include <errno.h>
|
||||||
|
|
||||||
|
#define DEFDATALEN 56
|
||||||
|
#define MAXIPLEN 60
|
||||||
|
#define MAXICMPLEN 76
|
||||||
|
#define MAXPACKET 65468
|
||||||
|
#define MAX_DUP_CHK (8 * 128)
|
||||||
|
#define MAXWAIT 10
|
||||||
|
|
||||||
|
#define O_QUIET (1 << 0)
|
||||||
|
|
||||||
|
#define A(bit) rcvd_tbl[(bit)>>3] /* identify byte in array */
|
||||||
|
#define B(bit) (1 << ((bit) & 0x07)) /* identify bit in byte */
|
||||||
|
#define SET(bit) (A(bit) |= B(bit))
|
||||||
|
#define CLR(bit) (A(bit) &= (~B(bit)))
|
||||||
|
#define TST(bit) (A(bit) & B(bit))
|
||||||
|
|
||||||
|
static const char* ping_usage = "ping [OPTION]... host\n\n"
|
||||||
|
"Options:\n"
|
||||||
|
"\t-q\t\tquiet\n"
|
||||||
|
"\t-c\t\tping count\n";
|
||||||
|
|
||||||
|
static char *hostname = NULL;
|
||||||
|
static struct sockaddr_in pingaddr;
|
||||||
|
static int pingsock = -1;
|
||||||
|
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 char rcvd_tbl[MAX_DUP_CHK / 8];
|
||||||
|
|
||||||
|
static void pingstats(int);
|
||||||
|
static void sendping(int);
|
||||||
|
static void unpack(char *, int, struct sockaddr_in *);
|
||||||
|
static void ping(char *);
|
||||||
|
static int in_cksum(unsigned short *, int);
|
||||||
|
|
||||||
|
/**************************************************************************/
|
||||||
|
|
||||||
|
static int in_cksum(unsigned short *buf, int sz)
|
||||||
|
{
|
||||||
|
int nleft = sz;
|
||||||
|
int sum = 0;
|
||||||
|
unsigned short *w = buf;
|
||||||
|
unsigned short ans = 0;
|
||||||
|
|
||||||
|
while (nleft > 1) {
|
||||||
|
sum += *w++;
|
||||||
|
nleft -= 2;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (nleft == 1) {
|
||||||
|
*(unsigned char *)(&ans) = *(unsigned char *)w;
|
||||||
|
sum += ans;
|
||||||
|
}
|
||||||
|
|
||||||
|
sum = (sum >> 16) + (sum & 0xFFFF);
|
||||||
|
sum += (sum >> 16);
|
||||||
|
ans = ~sum;
|
||||||
|
return(ans);
|
||||||
|
}
|
||||||
|
|
||||||
|
static void pingstats(int ign) {
|
||||||
|
signal(SIGINT, SIG_IGN);
|
||||||
|
|
||||||
|
printf("\n--- %s ping statistics ---\n", hostname);
|
||||||
|
printf("%ld packets transmitted, ", ntransmitted);
|
||||||
|
printf("%ld packets received, ", nreceived);
|
||||||
|
if (nrepeats)
|
||||||
|
printf("%ld duplicates, ", nrepeats);
|
||||||
|
if (ntransmitted)
|
||||||
|
printf("%ld%% packet loss\n",
|
||||||
|
(ntransmitted - nreceived)*100/ntransmitted);
|
||||||
|
if (nreceived)
|
||||||
|
printf("round-trip min/avg/max = %lu.%lu/%lu.%lu/%lu.%lu ms\n",
|
||||||
|
tmin/10, tmin%10,
|
||||||
|
(tsum/(nreceived+nrepeats))/10,
|
||||||
|
(tsum/(nreceived+nrepeats))%10,
|
||||||
|
tmax/10, tmax%10);
|
||||||
|
exit(0);
|
||||||
|
}
|
||||||
|
|
||||||
|
static void sendping(int ign)
|
||||||
|
{
|
||||||
|
struct icmp *pkt;
|
||||||
|
int i;
|
||||||
|
char packet[DEFDATALEN + 8];
|
||||||
|
|
||||||
|
pkt = (struct icmp *)packet;
|
||||||
|
|
||||||
|
pkt->icmp_type = ICMP_ECHO;
|
||||||
|
pkt->icmp_code = 0;
|
||||||
|
pkt->icmp_cksum = 0;
|
||||||
|
pkt->icmp_seq = ntransmitted++;
|
||||||
|
pkt->icmp_id = myid;
|
||||||
|
CLR(pkt->icmp_seq % MAX_DUP_CHK);
|
||||||
|
|
||||||
|
gettimeofday((struct timeval *)&packet[8], NULL);
|
||||||
|
pkt->icmp_cksum = in_cksum((unsigned short *)pkt, sizeof(packet));
|
||||||
|
|
||||||
|
i = sendto(pingsock, packet, sizeof(packet), 0,
|
||||||
|
(struct sockaddr *)&pingaddr, sizeof(struct sockaddr_in));
|
||||||
|
|
||||||
|
if (i < 0 || i != sizeof(packet)) {
|
||||||
|
if (i < 0) perror("ping");
|
||||||
|
fprintf(stderr, "ping wrote %d chars; %d expected\n", i, sizeof(packet));
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
|
||||||
|
signal(SIGALRM, sendping);
|
||||||
|
if (pingcount == 0 || ntransmitted < pingcount) { /* schedule next */
|
||||||
|
alarm(1);
|
||||||
|
} else { /* done, wait for the last ping to come back */
|
||||||
|
/* todo, don't necessarily need to wait so long... */
|
||||||
|
signal(SIGALRM, pingstats);
|
||||||
|
alarm(MAXWAIT);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
static void unpack(char *buf, int sz, struct sockaddr_in *from)
|
||||||
|
{
|
||||||
|
struct icmp *icmppkt;
|
||||||
|
struct iphdr *iphdr;
|
||||||
|
struct timeval tv, *tp;
|
||||||
|
int hlen, dupflag;
|
||||||
|
unsigned long triptime;
|
||||||
|
|
||||||
|
gettimeofday(&tv, NULL);
|
||||||
|
|
||||||
|
/* check IP header */
|
||||||
|
iphdr = (struct iphdr *)buf;
|
||||||
|
hlen = iphdr->ihl << 2;
|
||||||
|
/* discard if too short */
|
||||||
|
if (sz < (DEFDATALEN + ICMP_MINLEN)) return;
|
||||||
|
|
||||||
|
sz -= hlen;
|
||||||
|
icmppkt = (struct icmp *)(buf + hlen);
|
||||||
|
|
||||||
|
if (icmppkt->icmp_type == ICMP_ECHOREPLY) {
|
||||||
|
if (icmppkt->icmp_id != myid) return; /* not our ping */
|
||||||
|
++nreceived;
|
||||||
|
tp = (struct timeval *)icmppkt->icmp_data;
|
||||||
|
|
||||||
|
if ((tv.tv_usec -= tp->tv_usec) < 0) {
|
||||||
|
--tv.tv_sec;
|
||||||
|
tv.tv_usec += 1000000;
|
||||||
|
}
|
||||||
|
tv.tv_sec -= tp->tv_sec;
|
||||||
|
|
||||||
|
triptime = tv.tv_sec * 10000 + (tv.tv_usec / 100);
|
||||||
|
tsum += triptime;
|
||||||
|
if (triptime < tmin) tmin = triptime;
|
||||||
|
if (triptime > tmax) tmax = triptime;
|
||||||
|
|
||||||
|
if (TST(icmppkt->icmp_seq % MAX_DUP_CHK)) {
|
||||||
|
++nrepeats;
|
||||||
|
--nreceived;
|
||||||
|
dupflag = 1;
|
||||||
|
} else {
|
||||||
|
SET(icmppkt->icmp_seq % MAX_DUP_CHK);
|
||||||
|
dupflag = 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (options & O_QUIET) return;
|
||||||
|
|
||||||
|
printf("%d bytes from %s: icmp_seq=%u", sz,
|
||||||
|
inet_ntoa(*(struct in_addr *)&from->sin_addr.s_addr),
|
||||||
|
icmppkt->icmp_seq);
|
||||||
|
printf(" ttl=%d", iphdr->ttl);
|
||||||
|
printf(" time=%lu.%lu ms", triptime/10, triptime%10);
|
||||||
|
if (dupflag) printf(" (DUP!)");
|
||||||
|
printf("\n");
|
||||||
|
} else {
|
||||||
|
fprintf(stderr, "Warning: unknown ICMP packet received (not echo-reply)\n");
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
static void ping(char *host)
|
||||||
|
{
|
||||||
|
struct protoent *proto;
|
||||||
|
struct hostent *h;
|
||||||
|
char buf[MAXHOSTNAMELEN];
|
||||||
|
char packet[DEFDATALEN + MAXIPLEN + MAXICMPLEN];
|
||||||
|
int sockopt;
|
||||||
|
|
||||||
|
if (!(proto = getprotobyname("icmp"))) {
|
||||||
|
fprintf(stderr, "ping: unknown protocol icmp\n");
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
if ((pingsock = socket(AF_INET, SOCK_RAW, proto->p_proto)) < 0) {
|
||||||
|
if (errno == EPERM) {
|
||||||
|
fprintf(stderr, "ping: permission denied. (are you root?)\n");
|
||||||
|
} else {
|
||||||
|
perror("ping");
|
||||||
|
}
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
|
||||||
|
#ifdef SUID_BUSYBOX
|
||||||
|
setuid(getuid());
|
||||||
|
#endif
|
||||||
|
|
||||||
|
memset(&pingaddr, 0, sizeof(struct sockaddr_in));
|
||||||
|
pingaddr.sin_family = AF_INET;
|
||||||
|
if (inet_aton(host, &pingaddr.sin_addr)) {
|
||||||
|
hostname = host;
|
||||||
|
} else {
|
||||||
|
if (!(h = gethostbyname(host))) {
|
||||||
|
fprintf(stderr, "ping: unknown host %s\n", host);
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
|
||||||
|
if (h->h_addrtype != AF_INET) {
|
||||||
|
fprintf(stderr, "ping: unknown address type; only AF_INET is currently supported.\n");
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
|
||||||
|
pingaddr.sin_family = AF_INET; /* h->h_addrtype */
|
||||||
|
memcpy(&pingaddr.sin_addr, h->h_addr, sizeof(pingaddr.sin_addr));
|
||||||
|
strncpy(buf, h->h_name, sizeof(buf)-1);
|
||||||
|
hostname = buf;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* enable broadcast pings */
|
||||||
|
sockopt = 1;
|
||||||
|
setsockopt(pingsock, SOL_SOCKET, SO_BROADCAST, (char *)&sockopt, sizeof(sockopt));
|
||||||
|
|
||||||
|
/* set recv buf for broadcast pings */
|
||||||
|
sockopt = 48 * 1024;
|
||||||
|
setsockopt(pingsock, SOL_SOCKET, SO_RCVBUF, (char *)&sockopt, sizeof(sockopt));
|
||||||
|
|
||||||
|
printf("PING %s (%s): %d data bytes\n",
|
||||||
|
hostname, inet_ntoa(*(struct in_addr *)&pingaddr.sin_addr.s_addr),
|
||||||
|
DEFDATALEN);
|
||||||
|
|
||||||
|
signal(SIGINT, pingstats);
|
||||||
|
|
||||||
|
/* start the ping's going ... */
|
||||||
|
sendping(0);
|
||||||
|
|
||||||
|
/* listen for replies */
|
||||||
|
while (1) {
|
||||||
|
struct sockaddr_in from;
|
||||||
|
size_t fromlen = sizeof(from);
|
||||||
|
int c;
|
||||||
|
|
||||||
|
if ((c = recvfrom(pingsock, packet, sizeof(packet), 0,
|
||||||
|
(struct sockaddr *)&from, &fromlen)) < 0) {
|
||||||
|
if (errno == EINTR) continue;
|
||||||
|
perror("ping");
|
||||||
|
continue;
|
||||||
|
}
|
||||||
|
unpack(packet, c, &from);
|
||||||
|
if (pingcount > 0 && nreceived >= pingcount) break;
|
||||||
|
}
|
||||||
|
pingstats(0);
|
||||||
|
}
|
||||||
|
|
||||||
|
extern int ping_main(int argc, char **argv)
|
||||||
|
{
|
||||||
|
argc--;
|
||||||
|
argv++;
|
||||||
|
options = 0;
|
||||||
|
/* Parse any options */
|
||||||
|
if (argc < 1) usage(ping_usage);
|
||||||
|
|
||||||
|
while (**argv == '-') {
|
||||||
|
while (*++(*argv))
|
||||||
|
switch (**argv) {
|
||||||
|
case 'c':
|
||||||
|
argc--; argv++;
|
||||||
|
if (argc < 1) usage(ping_usage);
|
||||||
|
pingcount = atoi(*argv);
|
||||||
|
break;
|
||||||
|
case 'q':
|
||||||
|
options |= O_QUIET;
|
||||||
|
break;
|
||||||
|
default:
|
||||||
|
usage(ping_usage);
|
||||||
|
}
|
||||||
|
argc--;
|
||||||
|
argv++;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (argc < 1) usage(ping_usage);
|
||||||
|
|
||||||
|
myid = getpid() & 0xFFFF;
|
||||||
|
ping(*(argv++));
|
||||||
|
exit( TRUE);
|
||||||
|
}
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Copyright (c) 1989 The Regents of the University of California.
|
||||||
|
* All rights reserved.
|
||||||
|
*
|
||||||
|
* This code is derived from software contributed to Berkeley by
|
||||||
|
* Mike Muuss.
|
||||||
|
*
|
||||||
|
* Redistribution and use in source and binary forms, with or without
|
||||||
|
* modification, are permitted provided that the following conditions
|
||||||
|
* are met:
|
||||||
|
* 1. Redistributions of source code must retain the above copyright
|
||||||
|
* notice, this list of conditions and the following disclaimer.
|
||||||
|
* 2. 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.
|
||||||
|
* 3. All advertising materials mentioning features or use of this software
|
||||||
|
* must display the following acknowledgement:
|
||||||
|
* This product includes software developed by the University of
|
||||||
|
* California, Berkeley and its contributors.
|
||||||
|
* 4. Neither the name of the University 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 REGENTS 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 REGENTS 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.
|
||||||
|
*/
|
||||||
|
|
||||||
|
|
||||||
374
ping.c
Normal file
374
ping.c
Normal file
@ -0,0 +1,374 @@
|
|||||||
|
/*
|
||||||
|
* $Id: ping.c,v 1.1 1999/12/07 23:14:59 andersen Exp $
|
||||||
|
* Mini ping implementation for busybox
|
||||||
|
*
|
||||||
|
* Copyright (C) 1999 by Randolph Chung <tausq@debian.org>
|
||||||
|
*
|
||||||
|
* This program is free software; you can redistribute it and/or modify
|
||||||
|
* it under the terms of the GNU General Public License as published by
|
||||||
|
* the Free Software Foundation; either version 2 of the License, or
|
||||||
|
* (at your option) any later version.
|
||||||
|
*
|
||||||
|
* This program is distributed in the hope that it will be useful,
|
||||||
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||||
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||||
|
* General Public License for more details.
|
||||||
|
*
|
||||||
|
* You should have received a copy of the GNU General Public License
|
||||||
|
* along with this program; if not, write to the Free Software
|
||||||
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||||
|
*
|
||||||
|
* This version of ping is adapted from the ping in netkit-base 0.10,
|
||||||
|
* which is:
|
||||||
|
*
|
||||||
|
* Copyright (c) 1989 The Regents of the University of California.
|
||||||
|
* All rights reserved.
|
||||||
|
*
|
||||||
|
* This code is derived from software contributed to Berkeley by
|
||||||
|
* Mike Muuss.
|
||||||
|
*
|
||||||
|
* Original copyright notice is retained at the end of this file.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#include "internal.h"
|
||||||
|
#include <sys/param.h>
|
||||||
|
#include <sys/socket.h>
|
||||||
|
#include <sys/file.h>
|
||||||
|
#include <sys/time.h>
|
||||||
|
#include <sys/times.h>
|
||||||
|
#include <sys/signal.h>
|
||||||
|
|
||||||
|
#include <netinet/in.h>
|
||||||
|
#include <netinet/ip.h>
|
||||||
|
#include <netinet/ip_icmp.h>
|
||||||
|
#include <arpa/inet.h>
|
||||||
|
#include <netdb.h>
|
||||||
|
#include <stdio.h>
|
||||||
|
#include <stdlib.h>
|
||||||
|
#include <errno.h>
|
||||||
|
|
||||||
|
#define DEFDATALEN 56
|
||||||
|
#define MAXIPLEN 60
|
||||||
|
#define MAXICMPLEN 76
|
||||||
|
#define MAXPACKET 65468
|
||||||
|
#define MAX_DUP_CHK (8 * 128)
|
||||||
|
#define MAXWAIT 10
|
||||||
|
|
||||||
|
#define O_QUIET (1 << 0)
|
||||||
|
|
||||||
|
#define A(bit) rcvd_tbl[(bit)>>3] /* identify byte in array */
|
||||||
|
#define B(bit) (1 << ((bit) & 0x07)) /* identify bit in byte */
|
||||||
|
#define SET(bit) (A(bit) |= B(bit))
|
||||||
|
#define CLR(bit) (A(bit) &= (~B(bit)))
|
||||||
|
#define TST(bit) (A(bit) & B(bit))
|
||||||
|
|
||||||
|
static const char* ping_usage = "ping [OPTION]... host\n\n"
|
||||||
|
"Options:\n"
|
||||||
|
"\t-q\t\tquiet\n"
|
||||||
|
"\t-c\t\tping count\n";
|
||||||
|
|
||||||
|
static char *hostname = NULL;
|
||||||
|
static struct sockaddr_in pingaddr;
|
||||||
|
static int pingsock = -1;
|
||||||
|
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 char rcvd_tbl[MAX_DUP_CHK / 8];
|
||||||
|
|
||||||
|
static void pingstats(int);
|
||||||
|
static void sendping(int);
|
||||||
|
static void unpack(char *, int, struct sockaddr_in *);
|
||||||
|
static void ping(char *);
|
||||||
|
static int in_cksum(unsigned short *, int);
|
||||||
|
|
||||||
|
/**************************************************************************/
|
||||||
|
|
||||||
|
static int in_cksum(unsigned short *buf, int sz)
|
||||||
|
{
|
||||||
|
int nleft = sz;
|
||||||
|
int sum = 0;
|
||||||
|
unsigned short *w = buf;
|
||||||
|
unsigned short ans = 0;
|
||||||
|
|
||||||
|
while (nleft > 1) {
|
||||||
|
sum += *w++;
|
||||||
|
nleft -= 2;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (nleft == 1) {
|
||||||
|
*(unsigned char *)(&ans) = *(unsigned char *)w;
|
||||||
|
sum += ans;
|
||||||
|
}
|
||||||
|
|
||||||
|
sum = (sum >> 16) + (sum & 0xFFFF);
|
||||||
|
sum += (sum >> 16);
|
||||||
|
ans = ~sum;
|
||||||
|
return(ans);
|
||||||
|
}
|
||||||
|
|
||||||
|
static void pingstats(int ign) {
|
||||||
|
signal(SIGINT, SIG_IGN);
|
||||||
|
|
||||||
|
printf("\n--- %s ping statistics ---\n", hostname);
|
||||||
|
printf("%ld packets transmitted, ", ntransmitted);
|
||||||
|
printf("%ld packets received, ", nreceived);
|
||||||
|
if (nrepeats)
|
||||||
|
printf("%ld duplicates, ", nrepeats);
|
||||||
|
if (ntransmitted)
|
||||||
|
printf("%ld%% packet loss\n",
|
||||||
|
(ntransmitted - nreceived)*100/ntransmitted);
|
||||||
|
if (nreceived)
|
||||||
|
printf("round-trip min/avg/max = %lu.%lu/%lu.%lu/%lu.%lu ms\n",
|
||||||
|
tmin/10, tmin%10,
|
||||||
|
(tsum/(nreceived+nrepeats))/10,
|
||||||
|
(tsum/(nreceived+nrepeats))%10,
|
||||||
|
tmax/10, tmax%10);
|
||||||
|
exit(0);
|
||||||
|
}
|
||||||
|
|
||||||
|
static void sendping(int ign)
|
||||||
|
{
|
||||||
|
struct icmp *pkt;
|
||||||
|
int i;
|
||||||
|
char packet[DEFDATALEN + 8];
|
||||||
|
|
||||||
|
pkt = (struct icmp *)packet;
|
||||||
|
|
||||||
|
pkt->icmp_type = ICMP_ECHO;
|
||||||
|
pkt->icmp_code = 0;
|
||||||
|
pkt->icmp_cksum = 0;
|
||||||
|
pkt->icmp_seq = ntransmitted++;
|
||||||
|
pkt->icmp_id = myid;
|
||||||
|
CLR(pkt->icmp_seq % MAX_DUP_CHK);
|
||||||
|
|
||||||
|
gettimeofday((struct timeval *)&packet[8], NULL);
|
||||||
|
pkt->icmp_cksum = in_cksum((unsigned short *)pkt, sizeof(packet));
|
||||||
|
|
||||||
|
i = sendto(pingsock, packet, sizeof(packet), 0,
|
||||||
|
(struct sockaddr *)&pingaddr, sizeof(struct sockaddr_in));
|
||||||
|
|
||||||
|
if (i < 0 || i != sizeof(packet)) {
|
||||||
|
if (i < 0) perror("ping");
|
||||||
|
fprintf(stderr, "ping wrote %d chars; %d expected\n", i, sizeof(packet));
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
|
||||||
|
signal(SIGALRM, sendping);
|
||||||
|
if (pingcount == 0 || ntransmitted < pingcount) { /* schedule next */
|
||||||
|
alarm(1);
|
||||||
|
} else { /* done, wait for the last ping to come back */
|
||||||
|
/* todo, don't necessarily need to wait so long... */
|
||||||
|
signal(SIGALRM, pingstats);
|
||||||
|
alarm(MAXWAIT);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
static void unpack(char *buf, int sz, struct sockaddr_in *from)
|
||||||
|
{
|
||||||
|
struct icmp *icmppkt;
|
||||||
|
struct iphdr *iphdr;
|
||||||
|
struct timeval tv, *tp;
|
||||||
|
int hlen, dupflag;
|
||||||
|
unsigned long triptime;
|
||||||
|
|
||||||
|
gettimeofday(&tv, NULL);
|
||||||
|
|
||||||
|
/* check IP header */
|
||||||
|
iphdr = (struct iphdr *)buf;
|
||||||
|
hlen = iphdr->ihl << 2;
|
||||||
|
/* discard if too short */
|
||||||
|
if (sz < (DEFDATALEN + ICMP_MINLEN)) return;
|
||||||
|
|
||||||
|
sz -= hlen;
|
||||||
|
icmppkt = (struct icmp *)(buf + hlen);
|
||||||
|
|
||||||
|
if (icmppkt->icmp_type == ICMP_ECHOREPLY) {
|
||||||
|
if (icmppkt->icmp_id != myid) return; /* not our ping */
|
||||||
|
++nreceived;
|
||||||
|
tp = (struct timeval *)icmppkt->icmp_data;
|
||||||
|
|
||||||
|
if ((tv.tv_usec -= tp->tv_usec) < 0) {
|
||||||
|
--tv.tv_sec;
|
||||||
|
tv.tv_usec += 1000000;
|
||||||
|
}
|
||||||
|
tv.tv_sec -= tp->tv_sec;
|
||||||
|
|
||||||
|
triptime = tv.tv_sec * 10000 + (tv.tv_usec / 100);
|
||||||
|
tsum += triptime;
|
||||||
|
if (triptime < tmin) tmin = triptime;
|
||||||
|
if (triptime > tmax) tmax = triptime;
|
||||||
|
|
||||||
|
if (TST(icmppkt->icmp_seq % MAX_DUP_CHK)) {
|
||||||
|
++nrepeats;
|
||||||
|
--nreceived;
|
||||||
|
dupflag = 1;
|
||||||
|
} else {
|
||||||
|
SET(icmppkt->icmp_seq % MAX_DUP_CHK);
|
||||||
|
dupflag = 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (options & O_QUIET) return;
|
||||||
|
|
||||||
|
printf("%d bytes from %s: icmp_seq=%u", sz,
|
||||||
|
inet_ntoa(*(struct in_addr *)&from->sin_addr.s_addr),
|
||||||
|
icmppkt->icmp_seq);
|
||||||
|
printf(" ttl=%d", iphdr->ttl);
|
||||||
|
printf(" time=%lu.%lu ms", triptime/10, triptime%10);
|
||||||
|
if (dupflag) printf(" (DUP!)");
|
||||||
|
printf("\n");
|
||||||
|
} else {
|
||||||
|
fprintf(stderr, "Warning: unknown ICMP packet received (not echo-reply)\n");
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
static void ping(char *host)
|
||||||
|
{
|
||||||
|
struct protoent *proto;
|
||||||
|
struct hostent *h;
|
||||||
|
char buf[MAXHOSTNAMELEN];
|
||||||
|
char packet[DEFDATALEN + MAXIPLEN + MAXICMPLEN];
|
||||||
|
int sockopt;
|
||||||
|
|
||||||
|
if (!(proto = getprotobyname("icmp"))) {
|
||||||
|
fprintf(stderr, "ping: unknown protocol icmp\n");
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
if ((pingsock = socket(AF_INET, SOCK_RAW, proto->p_proto)) < 0) {
|
||||||
|
if (errno == EPERM) {
|
||||||
|
fprintf(stderr, "ping: permission denied. (are you root?)\n");
|
||||||
|
} else {
|
||||||
|
perror("ping");
|
||||||
|
}
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
|
||||||
|
#ifdef SUID_BUSYBOX
|
||||||
|
setuid(getuid());
|
||||||
|
#endif
|
||||||
|
|
||||||
|
memset(&pingaddr, 0, sizeof(struct sockaddr_in));
|
||||||
|
pingaddr.sin_family = AF_INET;
|
||||||
|
if (inet_aton(host, &pingaddr.sin_addr)) {
|
||||||
|
hostname = host;
|
||||||
|
} else {
|
||||||
|
if (!(h = gethostbyname(host))) {
|
||||||
|
fprintf(stderr, "ping: unknown host %s\n", host);
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
|
||||||
|
if (h->h_addrtype != AF_INET) {
|
||||||
|
fprintf(stderr, "ping: unknown address type; only AF_INET is currently supported.\n");
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
|
||||||
|
pingaddr.sin_family = AF_INET; /* h->h_addrtype */
|
||||||
|
memcpy(&pingaddr.sin_addr, h->h_addr, sizeof(pingaddr.sin_addr));
|
||||||
|
strncpy(buf, h->h_name, sizeof(buf)-1);
|
||||||
|
hostname = buf;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* enable broadcast pings */
|
||||||
|
sockopt = 1;
|
||||||
|
setsockopt(pingsock, SOL_SOCKET, SO_BROADCAST, (char *)&sockopt, sizeof(sockopt));
|
||||||
|
|
||||||
|
/* set recv buf for broadcast pings */
|
||||||
|
sockopt = 48 * 1024;
|
||||||
|
setsockopt(pingsock, SOL_SOCKET, SO_RCVBUF, (char *)&sockopt, sizeof(sockopt));
|
||||||
|
|
||||||
|
printf("PING %s (%s): %d data bytes\n",
|
||||||
|
hostname, inet_ntoa(*(struct in_addr *)&pingaddr.sin_addr.s_addr),
|
||||||
|
DEFDATALEN);
|
||||||
|
|
||||||
|
signal(SIGINT, pingstats);
|
||||||
|
|
||||||
|
/* start the ping's going ... */
|
||||||
|
sendping(0);
|
||||||
|
|
||||||
|
/* listen for replies */
|
||||||
|
while (1) {
|
||||||
|
struct sockaddr_in from;
|
||||||
|
size_t fromlen = sizeof(from);
|
||||||
|
int c;
|
||||||
|
|
||||||
|
if ((c = recvfrom(pingsock, packet, sizeof(packet), 0,
|
||||||
|
(struct sockaddr *)&from, &fromlen)) < 0) {
|
||||||
|
if (errno == EINTR) continue;
|
||||||
|
perror("ping");
|
||||||
|
continue;
|
||||||
|
}
|
||||||
|
unpack(packet, c, &from);
|
||||||
|
if (pingcount > 0 && nreceived >= pingcount) break;
|
||||||
|
}
|
||||||
|
pingstats(0);
|
||||||
|
}
|
||||||
|
|
||||||
|
extern int ping_main(int argc, char **argv)
|
||||||
|
{
|
||||||
|
argc--;
|
||||||
|
argv++;
|
||||||
|
options = 0;
|
||||||
|
/* Parse any options */
|
||||||
|
if (argc < 1) usage(ping_usage);
|
||||||
|
|
||||||
|
while (**argv == '-') {
|
||||||
|
while (*++(*argv))
|
||||||
|
switch (**argv) {
|
||||||
|
case 'c':
|
||||||
|
argc--; argv++;
|
||||||
|
if (argc < 1) usage(ping_usage);
|
||||||
|
pingcount = atoi(*argv);
|
||||||
|
break;
|
||||||
|
case 'q':
|
||||||
|
options |= O_QUIET;
|
||||||
|
break;
|
||||||
|
default:
|
||||||
|
usage(ping_usage);
|
||||||
|
}
|
||||||
|
argc--;
|
||||||
|
argv++;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (argc < 1) usage(ping_usage);
|
||||||
|
|
||||||
|
myid = getpid() & 0xFFFF;
|
||||||
|
ping(*(argv++));
|
||||||
|
exit( TRUE);
|
||||||
|
}
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Copyright (c) 1989 The Regents of the University of California.
|
||||||
|
* All rights reserved.
|
||||||
|
*
|
||||||
|
* This code is derived from software contributed to Berkeley by
|
||||||
|
* Mike Muuss.
|
||||||
|
*
|
||||||
|
* Redistribution and use in source and binary forms, with or without
|
||||||
|
* modification, are permitted provided that the following conditions
|
||||||
|
* are met:
|
||||||
|
* 1. Redistributions of source code must retain the above copyright
|
||||||
|
* notice, this list of conditions and the following disclaimer.
|
||||||
|
* 2. 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.
|
||||||
|
* 3. All advertising materials mentioning features or use of this software
|
||||||
|
* must display the following acknowledgement:
|
||||||
|
* This product includes software developed by the University of
|
||||||
|
* California, Berkeley and its contributors.
|
||||||
|
* 4. Neither the name of the University 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 REGENTS 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 REGENTS 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.
|
||||||
|
*/
|
||||||
|
|
||||||
|
|
||||||
7
umount.c
7
umount.c
@ -107,13 +107,6 @@ umount_all(int useMtab)
|
|||||||
extern int
|
extern int
|
||||||
umount_main(int argc, char** argv)
|
umount_main(int argc, char** argv)
|
||||||
{
|
{
|
||||||
int i=0;
|
|
||||||
char **foo=argv;
|
|
||||||
while(*foo) {
|
|
||||||
fprintf(stderr, "argv[%d]='%s'\n", i++, *foo);
|
|
||||||
foo++;
|
|
||||||
}
|
|
||||||
|
|
||||||
if (argc < 2) {
|
if (argc < 2) {
|
||||||
usage( umount_usage);
|
usage( umount_usage);
|
||||||
}
|
}
|
||||||
|
|||||||
@ -107,13 +107,6 @@ umount_all(int useMtab)
|
|||||||
extern int
|
extern int
|
||||||
umount_main(int argc, char** argv)
|
umount_main(int argc, char** argv)
|
||||||
{
|
{
|
||||||
int i=0;
|
|
||||||
char **foo=argv;
|
|
||||||
while(*foo) {
|
|
||||||
fprintf(stderr, "argv[%d]='%s'\n", i++, *foo);
|
|
||||||
foo++;
|
|
||||||
}
|
|
||||||
|
|
||||||
if (argc < 2) {
|
if (argc < 2) {
|
||||||
usage( umount_usage);
|
usage( umount_usage);
|
||||||
}
|
}
|
||||||
|
|||||||
Loading…
Reference in New Issue
Block a user