* Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
*/
-#include "busybox.h"
-#include <ctype.h>
-#include <getopt.h>
#include <sys/socket.h>
#include <arpa/inet.h>
+#include "libbb.h"
+
#define CLASS_A_NETMASK ntohl(0xFF000000)
#define CLASS_B_NETMASK ntohl(0xFFFF0000)
#define CLASS_C_NETMASK ntohl(0xFFFFFF00)
return 0;
}
-#ifdef CONFIG_FEATURE_IPCALC_FANCY
+#if ENABLE_FEATURE_IPCALC_FANCY
static int get_prefix(unsigned long netmask)
{
unsigned long msk = 0x80000000;
int ret = 0;
netmask = htonl(netmask);
- while(msk) {
+ while (msk) {
if (netmask & msk)
ret++;
msk >>= 1;
#define SILENT 0x20
#if ENABLE_FEATURE_IPCALC_LONG_OPTIONS
- static const struct option long_options[] = {
- { "netmask", no_argument, NULL, 'm' },
- { "broadcast", no_argument, NULL, 'b' },
- { "network", no_argument, NULL, 'n' },
+ static const char ipcalc_longopts[] ALIGN1 =
+ "netmask\0" No_argument "m"
+ "broadcast\0" No_argument "b"
+ "network\0" No_argument "n"
# if ENABLE_FEATURE_IPCALC_FANCY
- { "prefix", no_argument, NULL, 'p' },
- { "hostname", no_argument, NULL, 'h' },
- { "silent", no_argument, NULL, 's' },
+ "prefix\0" No_argument "p"
+ "hostname\0" No_argument "h"
+ "silent\0" No_argument "s"
# endif
- { NULL, 0, NULL, 0 }
- };
+ ;
#endif
+int ipcalc_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
int ipcalc_main(int argc, char **argv)
{
unsigned opt;
char *ipstr;
#if ENABLE_FEATURE_IPCALC_LONG_OPTIONS
- applet_long_options = long_options;
+ applet_long_options = ipcalc_longopts;
#endif
- opt = getopt32(argc, argv, "mbn" USE_FEATURE_IPCALC_FANCY("phs"));
+ opt = getopt32(argv, "mbn" IF_FEATURE_IPCALC_FANCY("phs"));
argc -= optind;
argv += optind;
if (opt & (BROADCAST | NETWORK | NETPREFIX)) {
if (opt & HOSTNAME) {
struct hostent *hostinfo;
- int x;
hostinfo = gethostbyaddr((char *) &ipaddr, sizeof(ipaddr), AF_INET);
if (!hostinfo) {
- bb_herror_msg_and_die("cannot find hostname for %s", argv[0]);
- }
- for (x = 0; hostinfo->h_name[x]; x++) {
- hostinfo->h_name[x] = tolower(hostinfo->h_name[x]);
+ bb_herror_msg_and_die("can't find hostname for %s", argv[0]);
}
+ str_tolower(hostinfo->h_name);
printf("HOSTNAME=%s\n", hostinfo->h_name);
}