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am 2f7b72f9: netstat should include /proc/net/tcp6 and /proc/net/udp6 data

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Merge commit '2f7b72f9e8d06c80957cdf384d23d3bf5bd5ce5c' into gingerbread-plus-aosp

* commit '2f7b72f9e8d06c80957cdf384d23d3bf5bd5ce5c':
  netstat should include /proc/net/tcp6 and /proc/net/udp6 data
This commit is contained in:
Brian Carlstrom 2010-09-28 23:37:09 -07:00 • committed by Android Git Automerger
commit f1fd5eb8cc
1 changed files with 89 additions and 55 deletions
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144
toolbox/netstat.c
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@ -9,7 +9,7 @@
* notice, this list of conditions and the following disclaimer. * notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright * * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in * notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the * the documentation and/or other materials provided with the
* distribution. * distribution.
* * Neither the name of Google, Inc. nor the names of its contributors * * Neither the name of Google, Inc. nor the names of its contributors
* may be used to endorse or promote products derived from this * may be used to endorse or promote products derived from this
@ -22,23 +22,37 @@
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE. * SUCH DAMAGE.
*/ */
#include <arpa/inet.h>
#include <stdio.h> #include <stdio.h>
#include <stdlib.h> #include <stdlib.h>
#include <sys/socket.h>
#include <sys/types.h>
typedef union iaddr iaddr; typedef union iaddr iaddr;
typedef union iaddr6 iaddr6;
union iaddr { union iaddr {
unsigned u; unsigned u;
unsigned char b[4]; unsigned char b[4];
}; };
union iaddr6 {
struct {
unsigned a;
unsigned b;
unsigned c;
unsigned d;
} u;
unsigned char b[16];
};
static const char *state2str(unsigned state) static const char *state2str(unsigned state)
{ {
switch(state){ switch(state){
@ -57,64 +71,84 @@ static const char *state2str(unsigned state)
} }
} }
void addr2str(iaddr addr, unsigned port, char *buf) /* addr + : + port + \0 */
#define ADDR_LEN INET6_ADDRSTRLEN + 1 + 5 + 1
static void addr2str(int af, const void *addr, unsigned port, char *buf)
{ {
if(port) { if (inet_ntop(af, addr, buf, ADDR_LEN) == NULL) {
snprintf(buf, 64, "%d.%d.%d.%d:%d", *buf = '\0';
addr.b[0], addr.b[1], addr.b[2], addr.b[3], port); return;
} else {
snprintf(buf, 64, "%d.%d.%d.%d:*",
addr.b[0], addr.b[1], addr.b[2], addr.b[3]);
} }
size_t len = strlen(buf);
if (port) {
snprintf(buf+len, ADDR_LEN-len, ":%d", port);
} else {
strncat(buf+len, ":*", ADDR_LEN-len-1);
}
}
static void ipv4(const char *filename, const char *label) {
FILE *fp = fopen(filename, "r");
if (fp == NULL) {
return;
}
char buf[BUFSIZ];
fgets(buf, BUFSIZ, fp);
while (fgets(buf, BUFSIZ, fp)){
char lip[ADDR_LEN];
char rip[ADDR_LEN];
iaddr laddr, raddr;
unsigned lport, rport, state, txq, rxq, num;
int n = sscanf(buf, " %d: %x:%x %x:%x %x %x:%x",
&num, &laddr.u, &lport, &raddr.u, &rport,
&state, &txq, &rxq);
if (n == 8) {
addr2str(AF_INET, &laddr, lport, lip);
addr2str(AF_INET, &raddr, rport, rip);
printf("%4s %6d %6d %-22s %-22s %s\n",
label, txq, rxq, lip, rip,
state2str(state));
}
}
fclose(fp);
}
static void ipv6(const char *filename, const char *label) {
FILE *fp = fopen(filename, "r");
if (fp == NULL) {
return;
}
char buf[BUFSIZ];
fgets(buf, BUFSIZ, fp);
while (fgets(buf, BUFSIZ, fp)){
char lip[ADDR_LEN];
char rip[ADDR_LEN];
iaddr6 laddr6, raddr6;
unsigned lport, rport, state, txq, rxq, num;
int n = sscanf(buf, " %d: %8x%8x%8x%8x:%x %8x%8x%8x%8x:%x %x %x:%x",
&num, &laddr6.u.a, &laddr6.u.b, &laddr6.u.c, &laddr6.u.d, &lport,
&raddr6.u.a, &raddr6.u.b, &raddr6.u.c, &raddr6.u.d, &rport,
&state, &txq, &rxq);
if (n == 14) {
addr2str(AF_INET6, &laddr6, lport, lip);
addr2str(AF_INET6, &raddr6, rport, rip);
printf("%4s %6d %6d %-22s %-22s %s\n",
label, txq, rxq, lip, rip,
state2str(state));
}
}
fclose(fp);
} }
int netstat_main(int argc, char *argv[]) int netstat_main(int argc, char *argv[])
{ {
char buf[512];
char lip[64];
char rip[64];
iaddr laddr, raddr;
unsigned lport, rport, state, txq, rxq, num;
int n;
FILE *fp;
printf("Proto Recv-Q Send-Q Local Address Foreign Address State\n"); printf("Proto Recv-Q Send-Q Local Address Foreign Address State\n");
ipv4("/proc/net/tcp", "tcp");
fp = fopen("/proc/net/tcp", "r"); ipv4("/proc/net/udp", "udp");
if(fp != 0) { ipv6("/proc/net/tcp6", "tcp6");
fgets(buf, 512, fp); ipv6("/proc/net/udp6", "udp6");
while(fgets(buf, 512, fp)){
n = sscanf(buf, " %d: %x:%x %x:%x %x %x:%x",
&num, &laddr.u, &lport, &raddr.u, &rport,
&state, &txq, &rxq);
if(n == 8) {
addr2str(laddr, lport, lip);
addr2str(raddr, rport, rip);
printf("tcp %6d %6d %-22s %-22s %s\n",
txq, rxq, lip, rip,
state2str(state));
}
}
fclose(fp);
}
fp = fopen("/proc/net/udp", "r");
if(fp != 0) {
fgets(buf, 512, fp);
while(fgets(buf, 512, fp)){
n = sscanf(buf, " %d: %x:%x %x:%x %x %x:%x",
&num, &laddr.u, &lport, &raddr.u, &rport,
&state, &txq, &rxq);
if(n == 8) {
addr2str(laddr, lport, lip);
addr2str(raddr, rport, rip);
printf("udp %6d %6d %-22s %-22s\n",
txq, rxq, lip, rip);
}
}
fclose(fp);
}
return 0; return 0;
} }