+0.38
+ * New Apps: ping and hostname contributed by Randolph Chung
+ <tausq@debian.org>
+ * on reboot, init called 'umount -a -n', which caused errors
+ when BB_MTAB was not enabled. Changed to 'umount -a',
+ which does the right thing.
+
+ -Erik Andrsen
+
0.38
* Fixed a segfault in 'umount -a' when a badly formed /etc/fstab
file existed.
* poweroff
* du
* mkfifo
-* hostname/dnsdomainname
-* ping/traceroute/nslookup/netstat
+* dnsdomainname
+* traceroute/nslookup/netstat
* rdate
* hwclock
* login/getty
#ifdef BB_HALT //sbin
{"halt", halt_main},
#endif
+#ifdef BB_HOSTNAME //bin
+ {"hostname", hostname_main},
+#endif
#ifdef BB_INIT //sbin
{"init", init_main},
#endif
#ifdef BB_MV //bin
{"mv", mv_main},
#endif
+#ifdef BB_PING //bin
+ {"ping", ping_main},
+#endif
#ifdef BB_PRINTF //usr/bin
{"printf", printf_main},
#endif
#ifdef BB_HALT //sbin
{"halt", halt_main},
#endif
+#ifdef BB_HOSTNAME //bin
+ {"hostname", hostname_main},
+#endif
#ifdef BB_INIT //sbin
{"init", init_main},
#endif
#ifdef BB_MV //bin
{"mv", mv_main},
#endif
+#ifdef BB_PING //bin
+ {"ping", ping_main},
+#endif
#ifdef BB_PRINTF //usr/bin
{"printf", printf_main},
#endif
#define BB_DEALLOCVT
#define BB_GREP
//#define BB_HALT
+#define BB_HOSTNAME
#define BB_INIT
#define BB_KILL
//#define BB_LENGTH
//#define BB_MT
//#define BB_MTAB
#define BB_MV
+#define BB_PING
//#define BB_PRINTF
#define BB_PS
#define BB_PWD
--- /dev/null
+/*
+ * $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"
+#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;
+}
+
void set_term( int fd)
{
struct termios tty;
-#if 0
- static const char control_characters[] = {
- '\003', '\034', '\177', '\030', '\004', '\0',
- '\1', '\0', '\021', '\023', '\032', '\0', '\022',
- '\017', '\027', '\026', '\0'
- };
-#else
static const char control_characters[] = {
'\003', '\034', '\177', '\025', '\004', '\0',
'\1', '\0', '\021', '\023', '\032', '\0', '\022',
'\017', '\027', '\026', '\0'
};
-#endif
tcgetattr(fd, &tty);
static void shutdown_system(void)
{
const char* const swap_off_cmd[] = { "swapoff", "swapoff", "-a", 0};
- const char* const umount_cmd[] = { "umount", "umount", "-a", "-n", 0};
+ const char* const umount_cmd[] = { "umount", "umount", "-a", 0};
#ifndef DEBUG_INIT
/* Allow Ctrl-Alt-Del to reboot system. */
void set_term( int fd)
{
struct termios tty;
-#if 0
- static const char control_characters[] = {
- '\003', '\034', '\177', '\030', '\004', '\0',
- '\1', '\0', '\021', '\023', '\032', '\0', '\022',
- '\017', '\027', '\026', '\0'
- };
-#else
static const char control_characters[] = {
'\003', '\034', '\177', '\025', '\004', '\0',
'\1', '\0', '\021', '\023', '\032', '\0', '\022',
'\017', '\027', '\026', '\0'
};
-#endif
tcgetattr(fd, &tty);
static void shutdown_system(void)
{
const char* const swap_off_cmd[] = { "swapoff", "swapoff", "-a", 0};
- const char* const umount_cmd[] = { "umount", "umount", "-a", "-n", 0};
+ const char* const umount_cmd[] = { "umount", "umount", "-a", 0};
#ifndef DEBUG_INIT
/* Allow Ctrl-Alt-Del to reboot system. */
extern int find_main(int argc, char** argv);
extern int grep_main(int argc, char** argv);
extern int halt_main(int argc, char** argv);
+extern int hostname_main(int argc, char** argv);
extern int init_main(int argc, char** argv);
extern int kill_main(int argc, char** argv);
extern int length_main(int argc, char** argv);
extern int mount_main(int argc, char** argv);
extern int mt_main(int argc, char** argv);
extern int mv_main(int argc, char** argv);
+extern int ping_main(int argc, char **argv);
extern int printf_main(int argc, char** argv);
extern int ps_main(int argc, char** argv);
extern int pwd_main(int argc, char** argv);
--- /dev/null
+/*
+ * $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"
+#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;
+}
+
--- /dev/null
+/*
+ * $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.
+ */
+
+
--- /dev/null
+/*
+ * $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.
+ */
+
+
extern int
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) {
usage( umount_usage);
}
extern int
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) {
usage( umount_usage);
}
projects / oweals / busybox.git / commitdiff