The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2008, The Android Open Source Project |
| 3 | * All rights reserved. |
| 4 | * |
| 5 | * Redistribution and use in source and binary forms, with or without |
| 6 | * modification, are permitted provided that the following conditions |
| 7 | * are met: |
| 8 | * * Redistributions of source code must retain the above copyright |
| 9 | * notice, this list of conditions and the following disclaimer. |
| 10 | * * Redistributions in binary form must reproduce the above copyright |
| 11 | * notice, this list of conditions and the following disclaimer in |
| 12 | * the documentation and/or other materials provided with the |
| 13 | * distribution. |
| 14 | * * Neither the name of Google, Inc. nor the names of its contributors |
| 15 | * may be used to endorse or promote products derived from this |
| 16 | * software without specific prior written permission. |
| 17 | * |
| 18 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 19 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 20 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
| 21 | * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
| 22 | * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
| 23 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
| 24 | * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS |
| 25 | * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED |
| 26 | * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| 27 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
| 28 | * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 29 | * SUCH DAMAGE. |
| 30 | */ |
| 31 | |
| 32 | #include <stdio.h> |
| 33 | #include <stdlib.h> |
| 34 | |
| 35 | typedef union iaddr iaddr; |
| 36 | |
| 37 | union iaddr { |
| 38 | unsigned u; |
| 39 | unsigned char b[4]; |
| 40 | }; |
| 41 | |
| 42 | static const char *state2str(unsigned state) |
| 43 | { |
| 44 | switch(state){ |
| 45 | case 0x1: return "ESTABLISHED"; |
| 46 | case 0x2: return "SYN_SENT"; |
| 47 | case 0x3: return "SYN_RECV"; |
| 48 | case 0x4: return "FIN_WAIT1"; |
| 49 | case 0x5: return "FIN_WAIT2"; |
| 50 | case 0x6: return "TIME_WAIT"; |
| 51 | case 0x7: return "CLOSE"; |
| 52 | case 0x8: return "CLOSE_WAIT"; |
| 53 | case 0x9: return "LAST_ACK"; |
| 54 | case 0xA: return "LISTEN"; |
| 55 | case 0xB: return "CLOSING"; |
| 56 | default: return "UNKNOWN"; |
| 57 | } |
| 58 | } |
| 59 | |
| 60 | void addr2str(iaddr addr, unsigned port, char *buf) |
| 61 | { |
| 62 | if(port) { |
| 63 | snprintf(buf, 64, "%d.%d.%d.%d:%d", |
| 64 | addr.b[0], addr.b[1], addr.b[2], addr.b[3], port); |
| 65 | } else { |
| 66 | snprintf(buf, 64, "%d.%d.%d.%d:*", |
| 67 | addr.b[0], addr.b[1], addr.b[2], addr.b[3]); |
| 68 | } |
| 69 | } |
| 70 | |
| 71 | int netstat_main(int argc, char *argv[]) |
| 72 | { |
| 73 | char buf[512]; |
| 74 | char lip[64]; |
| 75 | char rip[64]; |
| 76 | iaddr laddr, raddr; |
| 77 | unsigned lport, rport, state, txq, rxq, num; |
| 78 | int n; |
| 79 | FILE *fp; |
| 80 | |
| 81 | printf("Proto Recv-Q Send-Q Local Address Foreign Address State\n"); |
| 82 | |
| 83 | fp = fopen("/proc/net/tcp", "r"); |
| 84 | if(fp != 0) { |
| 85 | fgets(buf, 512, fp); |
| 86 | while(fgets(buf, 512, fp)){ |
| 87 | n = sscanf(buf, " %d: %x:%x %x:%x %x %x:%x", |
| 88 | &num, &laddr.u, &lport, &raddr.u, &rport, |
| 89 | &state, &txq, &rxq); |
| 90 | if(n == 8) { |
| 91 | addr2str(laddr, lport, lip); |
| 92 | addr2str(raddr, rport, rip); |
| 93 | |
| 94 | printf("tcp %6d %6d %-22s %-22s %s\n", |
| 95 | txq, rxq, lip, rip, |
| 96 | state2str(state)); |
| 97 | } |
| 98 | } |
| 99 | fclose(fp); |
| 100 | } |
| 101 | fp = fopen("/proc/net/udp", "r"); |
| 102 | if(fp != 0) { |
| 103 | fgets(buf, 512, fp); |
| 104 | while(fgets(buf, 512, fp)){ |
| 105 | n = sscanf(buf, " %d: %x:%x %x:%x %x %x:%x", |
| 106 | &num, &laddr.u, &lport, &raddr.u, &rport, |
| 107 | &state, &txq, &rxq); |
| 108 | if(n == 8) { |
| 109 | addr2str(laddr, lport, lip); |
| 110 | addr2str(raddr, rport, rip); |
| 111 | |
| 112 | printf("udp %6d %6d %-22s %-22s\n", |
| 113 | txq, rxq, lip, rip); |
| 114 | } |
| 115 | } |
| 116 | fclose(fp); |
| 117 | } |
| 118 | |
| 119 | return 0; |
| 120 | } |