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c11986d89

Glenn L McGrath

2002-11-10

FAILED Duration: 7s

Subject

ipcalc applet by Stephan Linz and Jordan Crouse

Binary

No binary (build failed)

Architecture & Compiler Flags

Architecture: x86_64-linux-gnu Compiler: gcc (Ubuntu 11.4.0-1ubuntu1~22.04.3) 11.4.0

—

Build Log

(log yok)

Commit Diff GitHub →

AUTHORS +9 -4 include/applets.h +3 -0 include/usage.h +30 -0 networking/Makefile.in +1 -0 networking/config.in +4 -0 networking/ipcalc.c +164 -0

AUTHORS+9 -4

@@ -8,6 +8,9 @@ incorect, _please_ let me know.

	-----------

+	Emanuele Aina <[email protected]>
+	run-parts
+
	Erik Andersen <[email protected]>, <[email protected]>
	Tons of new stuff, major rewrite of most of the
	core apps, tons of new apps as noted in header files.
@@ -28,6 +31,9 @@ Dave Cinege <[email protected]>
	more(v2), makedevs, dutmp, modularization, auto links file,
	various fixes, Linux Router Project maintenance

+	Jordan Crouse <[email protected]>
+	ipcalc
+
	Magnus Damm <[email protected]>
	tftp client
	insmod powerpc support
@@ -48,6 +54,9 @@ Daniel Jacobowitz <[email protected]>
	Matt Kraai <[email protected]>
	documentation, bugfixes, test suite

+	Stephan Linz <[email protected]>
+	ipcalc, Red Hat equivalence
+
	John Lombardo <[email protected]>
	dirname, tr

@@ -89,7 +98,3 @@ Charles P. Wright <[email protected]>

	Enrique Zanardi <[email protected]>
	tarcat (since removed), loadkmap, various fixes, Debian maintenance
-
-	Emanuele Aina <[email protected]>
-	run-parts
-

include/applets.h+3 -0

@@ -254,6 +254,9 @@
	#ifdef CONFIG_IP
	APPLET(ip, ip_main, _BB_DIR_BIN, _BB_SUID_NEVER)
	#endif
+	#ifdef CONFIG_IPCALC
+	APPLET(ipcalc, ipcalc_main, _BB_DIR_BIN, _BB_SUID_NEVER)
+	#endif
	#ifdef CONFIG_KILL
	APPLET(kill, kill_main, _BB_DIR_BIN, _BB_SUID_NEVER)
	#endif

include/usage.h+30 -0

@@ -982,6 +982,36 @@
	#define ip_full_usage \
	"not written yet"

+	#ifndef CONFIG_FEATURE_IPCALC_FANCY
+	#define ipcalc_trivial_usage \
+	"[--broadcast] [--netmask] [--network] ipaddr <netmask>"
+
+	#define ipcalc_full_usage \
+	"Calculate IP network settings from a IP address\n\n" \
+	"Options:\n" \
+	"\t-b\t--broadcast\tDisplay calculated broadcast address.\n" \
+	"\t-n\t--netmask\tDisplay default netmask for IP.\n" \
+	"\t-w\t--network\tDisplay calculated network address."
+	#else
+	#define ipcalc_trivial_usage \
+	"[OPTION]... ipaddr <netmask>"
+
+	#define ipcalc_full_usage \
+	"Calculate IP network settings from a IP address\n\n" \
+	"Options:\n" \
+	"\t-b\t--broadcast\tDisplay calculated broadcast address.\n" \
+	"\t-n\t--netmask\tDisplay default netmask for IP.\n" \
+	"\t-w\t--network\tDisplay calculated network address.\n" \
+	"\t-h\t--hostname\tDisplay first resolved host name.\n" \
+	"\t-s\t--silent\tDon't ever display error messages."
+	#endif
+
+	#define ipcalc_notes_usage \
+	"ipcalc provides a simple way to calculate IP information for\n" \
+	"a host. The various options specify what information ipcalc\n" \
+	"should display on standard out. Multiple options may be\n" \
+	"specified.\n"
+
	#define kill_trivial_usage \
	"[-signal] process-id [process-id ...]"
	#define kill_full_usage \

networking/Makefile.in+1 -0

@@ -27,6 +27,7 @@ NETWORKING-$(CONFIG_HOSTNAME) += hostname.o
	NETWORKING-$(CONFIG_IFCONFIG) += ifconfig.o
	NETWORKING-$(CONFIG_IFUPDOWN) += ifupdown.o
	NETWORKING-$(CONFIG_IP) += ip.o
+	NETWORKING-$(CONFIG_IPCALC) += ipcalc.o
	NETWORKING-$(CONFIG_NC) += nc.o
	NETWORKING-$(CONFIG_NETSTAT) += netstat.o
	NETWORKING-$(CONFIG_NSLOOKUP) += nslookup.o

networking/config.in+4 -0

@@ -30,6 +30,10 @@ if [ "$CONFIG_IP" = "y" ]; then
	bool ' route' CONFIG_FEATURE_IP_ROUTE
	bool ' tunnel' CONFIG_FEATURE_IP_TUNNEL
	fi
+	bool 'ipcalc' CONFIG_IPCALC
+	if [ "$CONFIG_IPCALC" = "y" ]; then
+	bool ' Fancy IPCALC, more options, adds 300 bytes' CONFIG_FEATURE_IPCALC_FANCY
+	fi
	bool 'nc' CONFIG_NC
	bool 'netstat' CONFIG_NETSTAT
	bool 'nslookup' CONFIG_NSLOOKUP

networking/ipcalc.c+164 -0

@@ -0,0 +1,164 @@
+	/* vi: set sw=4 ts=4 ai: */
+	/*
+	* Mini ipcalc implementation for busybox
+	*
+	* By Jordan Crouse <[email protected]>
+	* Stephan Linz <[email protected]>
+	*
+	* This is a complete reimplentation of the ipcalc program
+	* from Redhat. I didn't look at their source code, but there
+	* is no denying that this is a loving reimplementation
+	*/
+
+	#include <stdio.h>
+	#include <stdlib.h>
+	#include <ctype.h>
+	#include <getopt.h>
+	#include <sys/socket.h>
+	#include <netinet/in.h>
+	#include <arpa/inet.h>
+
+	#include "busybox.h"
+
+	#define IPCALC_MSG(CMD,ALTCMD) if (mode & SILENT) {ALTCMD;} else {CMD;}
+
+	static unsigned long get_netmask(unsigned long ipaddr)
+	{
+	if (ipaddr & 0xC0) {
+	return 0x00FFFFFF; /* Class C */
+	}
+	if (ipaddr & 0x10) {
+	return 0x0000FFFF; /* Class B */
+	}
+	return 0x000000FF; /* Class A */
+	}
+
+	#define NETMASK 0x01
+	#define BROADCAST 0x02
+	#define NETWORK 0x04
+	#define HOSTNAME 0x08
+	#define SILENT 0x80
+
+	int ipcalc_main(int argc, char **argv)
+	{
+	unsigned char mode = 0;
+
+	unsigned long netmask = 0;
+	unsigned long broadcast = 0;
+	unsigned long network = 0;
+	unsigned long ipaddr = 0;
+
+	int opt = 0;
+
+	struct option long_options[] = {
+	{"netmask", no_argument, NULL, 'n'},
+	{"broadcast", no_argument, NULL, 'b'},
+	{"network", no_argument, NULL, 'w'},
+	#ifdef CONFIG_FEATURE_IPCALC_FANCY
+	{"hostname", no_argument, NULL, 'h'},
+	{"silent", no_argument, NULL, 's'},
+	#endif
+	{NULL, 0, NULL, 0}
+	};
+
+
+	while ((opt = getopt_long(argc, argv,
+	#ifdef CONFIG_FEATURE_IPCALC_FANCY
+	"nbwhs",
+	#else
+	"nbw",
+	#endif
+	long_options, NULL)) != EOF) {
+	if (opt == 'n')
+	mode \|= NETMASK;
+	else if (opt == 'b')
+	mode \|= BROADCAST;
+	else if (opt == 'w')
+	mode \|= NETWORK;
+	#ifdef CONFIG_FEATURE_IPCALC_FANCY
+	else if (opt == 'h')
+	mode \|= HOSTNAME;
+	else if (opt == 's')
+	mode \|= SILENT;
+	#endif
+	else {
+	show_usage();
+	}
+	}
+
+	if (mode & (BROADCAST \| NETWORK)) {
+	if (argc - optind > 2) {
+	show_usage();
+	}
+	} else {
+	if (argc - optind != 1) {
+	show_usage();
+	}
+	}
+
+	ipaddr = inet_addr(argv[optind]);
+
+	if (ipaddr == INADDR_NONE) {
+	IPCALC_MSG(error_msg_and_die("bad IP address: %s\n", argv[optind]),
+	exit(EXIT_FAILURE));
+	}
+
+
+	if (argc - optind == 2) {
+	netmask = inet_addr(argv[optind + 1]);
+	}
+
+	if (ipaddr == INADDR_NONE) {
+	IPCALC_MSG(error_msg_and_die("bad netmask: %s\n", argv[optind + 1]),
+	exit(EXIT_FAILURE));
+	}
+
+	/* JHC - If the netmask wasn't provided then calculate it */
+	if (!netmask) {
+	netmask = get_netmask(ipaddr);
+	}
+
+	if (mode & NETMASK) {
+	printf("NETMASK=%s\n", inet_ntoa(((struct in_addr ) &netmask)));
+	}
+
+	if (mode & BROADCAST) {
+	broadcast = (ipaddr & netmask) \| ~netmask;
+	printf("BROADCAST=%s\n", inet_ntoa(((struct in_addr ) &broadcast)));
+	}
+
+	if (mode & NETWORK) {
+	network = ipaddr & netmask;
+	printf("NETWORK=%s\n", inet_ntoa(((struct in_addr ) &network)));
+	}
+	#ifdef CONFIG_FEATURE_IPCALC_FANCY
+	if (mode & HOSTNAME) {
+	struct hostent *hostinfo;
+	int x;
+
+	hostinfo = gethostbyaddr((char *) &ipaddr, sizeof(ipaddr), AF_INET);
+	if (!hostinfo) {
+	IPCALC_MSG(error_msg("cannot find hostname for %s", argv[optind]);
+	herror(NULL);
+	putc('\n', stderr);,);
+	exit(EXIT_FAILURE);
+	}
+	for (x = 0; hostinfo->h_name[x]; x++) {
+	hostinfo->h_name[x] = tolower(hostinfo->h_name[x]);
+	}
+
+	printf("HOSTNAME=%s\n", hostinfo->h_name);
+	}
+	#endif
+
+	return EXIT_SUCCESS;
+	}
+
+	/* END CODE */
+	/*
+	Local Variables:
+	c-file-style: "linux"
+	c-basic-offset: 4
+	tab-width: 4
+	End:
+	*/