*
* Copyright (C) 2002 by Bart Visscher <magick@linux-fan.com>
*
- * 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
- *
* 2002-04-20
* IPV6 support added by Bart Visscher <magick@linux-fan.com>
+ *
+ * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
*/
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <stdarg.h>
-#include <signal.h>
-#include <errno.h>
-#include <sys/stat.h>
-#include <dirent.h>
-#include <unistd.h>
-#include "inet_common.h"
#include "busybox.h"
-#include "pwd_.h"
+#include "inet_common.h"
#ifdef CONFIG_ROUTE
extern void displayroutes(int noresolve, int netstatfmt);
#endif
-#define NETSTAT_CONNECTED 0x01
-#define NETSTAT_LISTENING 0x02
-#define NETSTAT_NUMERIC 0x04
-#define NETSTAT_TCP 0x10
-#define NETSTAT_UDP 0x20
-#define NETSTAT_RAW 0x40
-#define NETSTAT_UNIX 0x80
+#define NETSTAT_CONNECTED 0x01
+#define NETSTAT_LISTENING 0x02
+#define NETSTAT_NUMERIC 0x04
+/* Must match getopt32 option string */
+#define NETSTAT_TCP 0x10
+#define NETSTAT_UDP 0x20
+#define NETSTAT_RAW 0x40
+#define NETSTAT_UNIX 0x80
+#define NETSTAT_ALLPROTO (NETSTAT_TCP|NETSTAT_UDP|NETSTAT_RAW|NETSTAT_UNIX)
-static int flags = NETSTAT_CONNECTED |
- NETSTAT_TCP | NETSTAT_UDP | NETSTAT_RAW | NETSTAT_UNIX;
+static int flags = NETSTAT_CONNECTED | NETSTAT_ALLPROTO;
#define PROGNAME_WIDTHs PROGNAME_WIDTH1(PROGNAME_WIDTH)
#define PROGNAME_WIDTH1(s) PROGNAME_WIDTH2(s)
#define SO_WAITDATA (1<<17) /* wait data to read */
#define SO_NOSPACE (1<<18) /* no space to write */
-static char *itoa(unsigned int i)
-{
- /* 21 digits plus null terminator, good for 64-bit or smaller ints */
- static char local[22];
- char *p = &local[21];
- *p-- = '\0';
- do {
- *p-- = '0' + i % 10;
- i /= 10;
- } while (i > 0);
- return p + 1;
-}
-
static char *get_sname(int port, const char *proto, int num)
{
char *str=itoa(ntohs(port));
}
if (num < 10) {
- bb_error_msg("warning, got bogus tcp line.");
+ bb_error_msg("warning, got bogus tcp line");
return;
}
state_str = tcp_state[state];
}
if (num < 10) {
- bb_error_msg("warning, got bogus udp line.");
+ bb_error_msg("warning, got bogus udp line");
return;
}
switch (state) {
}
if (num < 10) {
- bb_error_msg("warning, got bogus raw line.");
+ bb_error_msg("warning, got bogus raw line");
return;
}
state_str=itoa(state);
num = sscanf(line, "%p: %lX %lX %lX %X %X %d %s",
&d, &refcnt, &proto, &unix_flags, &type, &state, &inode, path);
if (num < 6) {
- bb_error_msg("warning, got bogus unix line.");
+ bb_error_msg("warning, got bogus unix line");
return;
}
if (!(has & HAS_INODE))
static void do_info(const char *file, const char *name, void (*proc)(int, const char *))
{
- char buffer[8192];
int lnr = 0;
FILE *procinfo;
if (errno != ENOENT) {
perror(file);
} else {
- bb_error_msg("no support for `%s' on this system.", name);
+ bb_error_msg("no support for '%s' on this system", name);
}
} else {
do {
- if (fgets(buffer, sizeof(buffer), procinfo))
+ char *buffer = xmalloc_fgets(procinfo);
+ if (buffer) {
(proc)(lnr++, buffer);
+ free(buffer);
+ }
} while (!feof(procinfo));
fclose(procinfo);
}
int netstat_main(int argc, char **argv)
{
- int opt;
- int new_flags=0;
- int showroute = 0, extended = 0;
+ enum {
+ OPT_extended = 0x4,
+ OPT_showroute = 0x100,
+ };
+ unsigned opt;
#ifdef CONFIG_FEATURE_IPV6
- int inet=1;
- int inet6=1;
+ int inet = 1;
+ int inet6 = 1;
#else
# define inet 1
# define inet6 0
#endif
- while ((opt = getopt(argc, argv, "laenrtuwx")) != -1)
- switch (opt) {
- case 'l':
- flags &= ~NETSTAT_CONNECTED;
- flags |= NETSTAT_LISTENING;
- break;
- case 'a':
- flags |= NETSTAT_LISTENING | NETSTAT_CONNECTED;
- break;
- case 'n':
- flags |= NETSTAT_NUMERIC;
- break;
- case 'r':
- showroute = 1;
- break;
- case 'e':
- extended = 1;
- break;
- case 't':
- new_flags |= NETSTAT_TCP;
- break;
- case 'u':
- new_flags |= NETSTAT_UDP;
- break;
- case 'w':
- new_flags |= NETSTAT_RAW;
- break;
- case 'x':
- new_flags |= NETSTAT_UNIX;
- break;
- default:
- bb_show_usage();
- }
- if ( showroute ) {
+
+ /* Option string must match NETSTAT_xxx constants */
+ opt = getopt32(argc, argv, "laentuwxr");
+ if (opt & 0x1) { // -l
+ flags &= ~NETSTAT_CONNECTED;
+ flags |= NETSTAT_LISTENING;
+ }
+ if (opt & 0x2) flags |= NETSTAT_LISTENING | NETSTAT_CONNECTED; // -a
+ //if (opt & 0x4) // -e
+ if (opt & 0x8) flags |= NETSTAT_NUMERIC; // -n
+ //if (opt & 0x10) // -t: NETSTAT_TCP
+ //if (opt & 0x20) // -u: NETSTAT_UDP
+ //if (opt & 0x40) // -w: NETSTAT_RAW
+ //if (opt & 0x80) // -x: NETSTAT_UNIX
+ if (opt & OPT_showroute) { // -r
#ifdef CONFIG_ROUTE
- displayroutes ( flags & NETSTAT_NUMERIC, !extended );
+ displayroutes(flags & NETSTAT_NUMERIC, !(opt & OPT_extended));
return 0;
#else
- bb_error_msg_and_die( "-r (display routing table) is not compiled in." );
+ bb_error_msg_and_die("-r (display routing table) is not compiled in");
#endif
}
- if (new_flags) {
- flags &= ~(NETSTAT_TCP|NETSTAT_UDP|NETSTAT_RAW|NETSTAT_UNIX);
- flags |= new_flags;
+ opt &= NETSTAT_ALLPROTO;
+ if (opt) {
+ flags &= ~NETSTAT_ALLPROTO;
+ flags |= opt;
}
- if (flags&(NETSTAT_TCP|NETSTAT_UDP|NETSTAT_RAW)) {
+ if (flags & (NETSTAT_TCP|NETSTAT_UDP|NETSTAT_RAW)) {
printf("Active Internet connections "); /* xxx */
if ((flags&(NETSTAT_LISTENING|NETSTAT_CONNECTED))==(NETSTAT_LISTENING|NETSTAT_CONNECTED))
printf("(servers and established)");
else {
- if (flags&NETSTAT_LISTENING)
+ if (flags & NETSTAT_LISTENING)
printf("(only servers)");
else
printf("(w/o servers)");
}
- printf("\nProto Recv-Q Send-Q Local Address Foreign Address State \n");
+ printf("\nProto Recv-Q Send-Q Local Address Foreign Address State\n");
}
if (inet && flags&NETSTAT_TCP)
do_info(_PATH_PROCNET_TCP,"AF INET (tcp)",tcp_do_one);
projects / oweals / busybox.git / blobdiff