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+--------+-------------------------+-------------------------+--------+--------+
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|00000800| 2f 2a 20 52 45 5f 53 49 | 44 3a 20 40 28 25 29 2f |/* RE_SI|D: @(%)/|
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|00000b50| 6e 63 6c 75 64 65 20 3c | 61 72 70 61 2f 69 6e 65 |nclude <|arpa/ine|
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|00000ba0| 69 6e 63 6c 75 64 65 20 | 3c 63 74 79 70 65 2e 68 |include |<ctype.h|
|00000bb0| 3e 0a 23 69 6e 63 6c 75 | 64 65 20 3c 74 69 6d 65 |>.#inclu|de <time|
|00000bc0| 2e 68 3e 0a 0a 63 68 61 | 72 20 2a 70 72 6f 67 3b |.h>..cha|r *prog;|
|00000bd0| 09 09 09 2f 2a 20 70 6f | 69 6e 74 73 20 74 6f 20 |.../* po|ints to |
|00000be0| 70 72 6f 67 72 61 6d 20 | 6e 61 6d 65 20 66 6f 72 |program |name for|
|00000bf0| 20 6d 65 73 73 61 67 65 | 73 20 2a 2f 0a 69 6e 74 | message|s */.int|
|00000c00| 20 64 65 62 75 67 20 3d | 20 30 3b 0a 69 6e 74 20 | debug =| 0;.int |
|00000c10| 76 65 72 62 6f 73 65 20 | 3d 20 30 3b 0a 63 68 61 |verbose |= 0;.cha|
|00000c20| 72 20 2a 65 6d 70 74 79 | 5f 61 72 67 20 3d 20 22 |r *empty|_arg = "|
|00000c30| 22 3b 09 09 2f 2a 20 75 | 73 65 64 20 74 6f 20 65 |";../* u|sed to e|
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|00000c60| 69 6e 74 20 6d 73 67 5f | 6c 65 6e 20 3d 20 30 3b |int msg_|len = 0;|
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|00000ca0| 72 20 6d 73 67 5b 31 30 | 32 34 5d 3b 09 09 09 2f |r msg[10|24];.../|
|00000cb0| 2a 20 6d 65 73 73 61 67 | 65 20 61 73 73 65 6d 62 |* messag|e assemb|
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|00000cd0| 0a 20 2a 20 74 79 70 65 | 73 20 66 6f 72 20 61 6c |. * type|s for al|
|00000ce0| 6c 20 70 72 6f 63 65 64 | 75 72 65 73 2e 20 66 6f |l proced|ures. fo|
|00000cf0| 72 20 41 4e 53 49 20 73 | 74 61 6e 64 61 72 64 20 |r ANSI s|tandard |
|00000d00| 43 2c 20 74 68 65 73 65 | 20 73 68 6f 75 6c 64 0a |C, these| should.|
|00000d10| 20 2a 20 62 65 20 65 64 | 69 74 65 64 20 69 6e 74 | * be ed|ited int|
|00000d20| 6f 20 66 75 6c 6c 2d 62 | 6c 6f 77 6e 20 70 72 6f |o full-b|lown pro|
|00000d30| 74 6f 74 79 70 65 73 2e | 0a 20 2a 2f 0a 76 6f 69 |totypes.|. */.voi|
|00000d40| 64 20 75 73 61 67 65 28 | 29 3b 0a 69 6e 74 20 6d |d usage(|);.int m|
|00000d50| 61 69 6e 28 29 3b 0a 76 | 6f 69 64 20 61 73 73 65 |ain();.v|oid asse|
|00000d60| 6d 62 6c 65 5f 6d 65 73 | 73 61 67 65 28 29 3b 0a |mble_mes|sage();.|
|00000d70| 76 6f 69 64 20 64 6f 5f | 6c 69 6e 65 28 29 3b 0a |void do_|line();.|
|00000d80| 76 6f 69 64 20 74 63 70 | 5f 6d 73 67 28 29 3b 0a |void tcp|_msg();.|
|00000d90| 76 6f 69 64 20 75 64 70 | 5f 6d 73 67 28 29 3b 0a |void udp|_msg();.|
|00000da0| 76 6f 69 64 20 62 72 6f | 61 64 63 61 73 74 5f 6d |void bro|adcast_m|
|00000db0| 73 67 28 29 3b 0a 76 6f | 69 64 20 66 69 6e 64 5f |sg();.vo|id find_|
|00000dc0| 62 72 6f 61 64 63 61 73 | 74 5f 61 64 64 72 65 73 |broadcas|t_addres|
|00000dd0| 73 65 73 28 29 3b 0a 76 | 6f 69 64 20 66 69 6c 74 |ses();.v|oid filt|
|00000de0| 65 72 28 29 3b 0a 0a 65 | 78 74 65 72 6e 20 63 68 |er();..e|xtern ch|
|00000df0| 61 72 20 2a 67 65 74 6c | 6f 67 69 6e 28 29 3b 0a |ar *getl|ogin();.|
|00000e00| 65 78 74 65 72 6e 20 63 | 68 61 72 20 2a 74 74 79 |extern c|har *tty|
|00000e10| 6e 61 6d 65 28 29 3b 0a | 0a 0a 76 6f 69 64 0a 75 |name();.|..void.u|
|00000e20| 73 61 67 65 28 29 0a 7b | 0a 09 66 70 72 69 6e 74 |sage().{|..fprint|
|00000e30| 66 28 73 74 64 65 72 72 | 2c 20 22 75 73 61 67 65 |f(stderr|, "usage|
|00000e40| 3a 20 25 73 20 5b 2d 74 | 5d 5b 2d 64 5d 5b 2d 76 |: %s [-t|][-d][-v|
|00000e50| 5d 5b 2d 72 4e 5d 5b 2d | 70 4e 5d 20 72 65 63 69 |][-rN][-|pN] reci|
|00000e60| 70 69 65 6e 74 20 5b 27 | 6d 65 73 73 61 67 65 27 |pient ['|message'|
|00000e70| 5d 5c 6e 22 2c 20 70 72 | 6f 67 29 3b 0a 09 66 70 |]\n", pr|og);..fp|
|00000e80| 72 69 6e 74 66 28 73 74 | 64 65 72 72 2c 20 22 20 |rintf(st|derr, " |
|00000e90| 20 2d 74 20 20 20 20 2d | 20 75 73 65 20 54 43 50 | -t    -| use TCP|
|00000ea0| 3b 20 64 65 66 61 75 6c | 74 20 69 73 20 55 44 50 |; defaul|t is UDP|
|00000eb0| 2e 20 28 69 67 6e 6f 72 | 65 64 20 66 6f 72 20 62 |. (ignor|ed for b|
|00000ec0| 72 6f 61 64 63 61 73 74 | 73 29 5c 6e 22 29 3b 0a |roadcast|s)\n");.|
|00000ed0| 09 66 70 72 69 6e 74 66 | 28 73 74 64 65 72 72 2c |.fprintf|(stderr,|
|00000ee0| 20 22 20 20 2d 64 20 20 | 20 20 2d 20 74 75 72 6e | "  -d  |  - turn|
|00000ef0| 20 6f 6e 20 64 65 62 75 | 67 67 69 6e 67 20 28 69 | on debu|gging (i|
|00000f00| 6d 70 6c 69 65 73 20 2d | 76 29 5c 6e 22 29 3b 0a |mplies -|v)\n");.|
|00000f10| 09 66 70 72 69 6e 74 66 | 28 73 74 64 65 72 72 2c |.fprintf|(stderr,|
|00000f20| 20 22 20 20 2d 76 20 20 | 20 20 2d 20 76 65 72 62 | "  -v  |  - verb|
|00000f30| 6f 73 65 20 6d 6f 64 65 | 5c 6e 22 29 3b 0a 09 66 |ose mode|\n");..f|
|00000f40| 70 72 69 6e 74 66 28 73 | 74 64 65 72 72 2c 20 22 |printf(s|tderr, "|
|00000f50| 20 20 2d 72 4e 20 20 20 | 2d 20 55 44 50 20 72 65 |  -rN   |- UDP re|
|00000f60| 74 72 61 6e 73 6d 69 73 | 73 69 6f 6e 73 20 28 64 |transmis|sions (d|
|00000f70| 65 66 61 75 6c 74 3a 20 | 33 29 5c 6e 22 29 3b 0a |efault: |3)\n");.|
|00000f80| 09 66 70 72 69 6e 74 66 | 28 73 74 64 65 72 72 2c |.fprintf|(stderr,|
|00000f90| 20 22 20 20 2d 70 4e 20 | 20 20 2d 20 75 73 65 20 | "  -pN |  - use |
|00000fa0| 70 6f 72 74 20 4e 20 28 | 64 65 66 61 75 6c 74 3a |port N (|default:|
|00000fb0| 20 31 38 29 5c 6e 22 29 | 3b 0a 09 66 70 72 69 6e | 18)\n")|;..fprin|
|00000fc0| 74 66 28 73 74 64 65 72 | 72 2c 20 22 20 20 72 65 |tf(stder|r, "  re|
|00000fd0| 63 69 70 69 65 6e 74 20 | 6d 61 79 20 68 61 76 65 |cipient |may have|
|00000fe0| 20 61 6e 79 20 6f 66 20 | 74 68 65 20 66 6f 6c 6c | any of |the foll|
|00000ff0| 6f 77 69 6e 67 20 66 6f | 72 6d 73 3a 5c 6e 22 29 |owing fo|rms:\n")|
|00001000| 3b 0a 09 66 70 72 69 6e | 74 66 28 73 74 64 65 72 |;..fprin|tf(stder|
|00001010| 72 2c 20 22 20 20 20 75 | 73 65 72 20 20 20 20 20 |r, "   u|ser     |
|00001020| 20 20 20 20 20 20 2d 20 | 62 72 6f 61 64 63 61 73 |      - |broadcas|
|00001030| 74 20 66 6f 72 20 75 73 | 65 72 20 61 74 20 61 6e |t for us|er at an|
|00001040| 79 20 68 6f 73 74 5c 6e | 22 29 3b 0a 09 66 70 72 |y host\n|");..fpr|
|00001050| 69 6e 74 66 28 73 74 64 | 65 72 72 2c 20 22 20 20 |intf(std|err, "  |
|00001060| 20 75 73 65 72 40 68 6f | 73 74 20 20 20 20 20 20 | user@ho|st      |
|00001070| 2d 20 64 69 72 65 63 74 | 65 64 20 74 6f 20 75 73 |- direct|ed to us|
|00001080| 65 72 20 61 74 20 67 69 | 76 65 6e 20 68 6f 73 74 |er at gi|ven host|
|00001090| 5c 6e 22 29 3b 0a 09 66 | 70 72 69 6e 74 66 28 73 |\n");..f|printf(s|
|000010a0| 74 64 65 72 72 2c 20 22 | 20 20 20 40 68 6f 73 74 |tderr, "|   @host|
|000010b0| 20 20 20 20 20 20 20 20 | 20 20 2d 20 64 65 66 61 |        |  - defa|
|000010c0| 75 6c 74 20 64 65 73 74 | 2e 20 61 74 20 67 69 76 |ult dest|. at giv|
|000010d0| 65 6e 20 68 6f 73 74 5c | 6e 22 29 3b 0a 09 66 70 |en host\|n");..fp|
|000010e0| 72 69 6e 74 66 28 73 74 | 64 65 72 72 2c 20 22 20 |rintf(st|derr, " |
|000010f0| 20 20 40 20 20 20 20 20 | 20 20 20 20 20 20 20 20 |  @     |        |
|00001100| 20 2d 20 64 65 66 61 75 | 6c 74 20 64 65 73 74 2e | - defau|lt dest.|
|00001110| 20 6f 6e 20 61 6c 6c 20 | 68 6f 73 74 73 5c 6e 22 | on all |hosts\n"|
|00001120| 29 3b 0a 09 66 70 72 69 | 6e 74 66 28 73 74 64 65 |);..fpri|ntf(stde|
|00001130| 72 72 2c 20 22 20 20 20 | 75 73 65 72 3a 74 65 72 |rr, "   |user:ter|
|00001140| 6d 40 68 6f 73 74 20 2d | 20 75 73 65 72 20 6c 6f |m@host -| user lo|
|00001150| 67 67 65 64 20 69 6e 20 | 74 6f 20 74 65 72 6d 20 |gged in |to term |
|00001160| 6f 6e 20 68 6f 73 74 5c | 6e 22 29 3b 0a 09 66 70 |on host\|n");..fp|
|00001170| 72 69 6e 74 66 28 73 74 | 64 65 72 72 2c 20 22 20 |rintf(st|derr, " |
|00001180| 20 20 3a 74 65 72 6d 40 | 68 6f 73 74 20 20 20 20 |  :term@|host    |
|00001190| 20 2d 20 73 70 65 63 69 | 66 69 65 64 20 74 65 72 | - speci|fied ter|
|000011a0| 6d 69 6e 61 6c 20 6f 6e | 20 68 6f 73 74 5c 6e 22 |minal on| host\n"|
|000011b0| 29 3b 0a 09 66 70 72 69 | 6e 74 66 28 73 74 64 65 |);..fpri|ntf(stde|
|000011c0| 72 72 2c 20 22 20 20 20 | 3a 61 6c 6c 40 68 6f 73 |rr, "   |:all@hos|
|000011d0| 74 20 20 20 20 20 20 2d | 20 61 6c 6c 20 74 65 72 |t      -| all ter|
|000011e0| 6d 69 6e 61 6c 73 20 6f | 6e 20 67 69 76 65 6e 20 |minals o|n given |
|000011f0| 68 6f 73 74 5c 6e 22 29 | 3b 0a 09 66 70 72 69 6e |host\n")|;..fprin|
|00001200| 74 66 28 73 74 64 65 72 | 72 2c 20 22 20 20 20 3a |tf(stder|r, "   :|
|00001210| 61 6c 6c 20 20 20 20 20 | 20 20 20 20 20 20 2d 20 |all     |      - |
|00001220| 61 6c 6c 20 74 65 72 6d | 69 6e 61 6c 73 20 6f 6e |all term|inals on|
|00001230| 20 61 6c 6c 20 68 6f 73 | 74 73 5c 6e 22 29 3b 0a | all hos|ts\n");.|
|00001240| 09 66 70 72 69 6e 74 66 | 28 73 74 64 65 72 72 2c |.fprintf|(stderr,|
|00001250| 20 22 49 66 20 74 68 65 | 72 65 20 69 73 20 6e 6f | "If the|re is no|
|00001260| 20 6d 65 73 73 61 67 65 | 20 61 72 67 75 6d 65 6e | message| argumen|
|00001270| 74 2c 20 22 29 3b 0a 09 | 66 70 72 69 6e 74 66 28 |t, ");..|fprintf(|
|00001280| 73 74 64 65 72 72 2c 20 | 22 74 68 65 20 6d 65 73 |stderr, |"the mes|
|00001290| 73 61 67 65 20 69 73 20 | 72 65 61 64 20 66 72 6f |sage is |read fro|
|000012a0| 6d 20 73 74 61 6e 64 61 | 72 64 20 69 6e 70 75 74 |m standa|rd input|
|000012b0| 2e 5c 6e 22 29 3b 0a 7d | 0a 0a 69 6e 74 0a 6d 61 |.\n");.}|..int.ma|
|000012c0| 69 6e 28 61 72 67 63 2c | 20 61 72 67 76 29 0a 69 |in(argc,| argv).i|
|000012d0| 6e 74 20 61 72 67 63 3b | 0a 63 68 61 72 20 2a 61 |nt argc;|.char *a|
|000012e0| 72 67 76 5b 5d 3b 0a 7b | 0a 0a 09 69 6e 74 09 75 |rgv[];.{|...int.u|
|000012f0| 73 65 5f 74 63 70 20 3d | 20 30 3b 0a 09 69 6e 74 |se_tcp =| 0;..int|
|00001300| 09 72 65 74 72 69 65 73 | 20 3d 20 33 3b 0a 09 73 |.retries| = 3;..s|
|00001310| 68 6f 72 74 20 70 6f 72 | 74 20 3d 20 30 3b 0a 09 |hort por|t = 0;..|
|00001320| 69 6e 74 20 62 72 6f 61 | 64 63 61 73 74 69 6e 67 |int broa|dcasting|
|00001330| 20 3d 20 30 3b 0a 0a 09 | 63 68 61 72 20 2a 72 65 | = 0;...|char *re|
|00001340| 63 69 70 69 65 6e 74 3b | 0a 09 63 68 61 72 20 2a |cipient;|..char *|
|00001350| 75 73 65 72 3b 0a 09 63 | 68 61 72 20 2a 74 65 72 |user;..c|har *ter|
|00001360| 6d 3b 0a 09 63 68 61 72 | 20 2a 68 6f 73 74 3b 0a |m;..char| *host;.|
|00001370| 09 63 68 61 72 20 2a 6d | 73 67 5f 74 65 78 74 3b |.char *m|sg_text;|
|00001380| 0a 0a 09 73 74 72 75 63 | 74 20 73 6f 63 6b 61 64 |...struc|t sockad|
|00001390| 64 72 5f 69 6e 20 73 69 | 6e 3b 0a 09 73 74 72 75 |dr_in si|n;..stru|
|000013a0| 63 74 20 73 65 72 76 65 | 6e 74 20 2a 73 70 3b 0a |ct serve|nt *sp;.|
|000013b0| 09 73 74 72 75 63 74 20 | 68 6f 73 74 65 6e 74 20 |.struct |hostent |
|000013c0| 2a 68 70 3b 0a 09 73 74 | 72 75 63 74 20 6e 65 74 |*hp;..st|ruct net|
|000013d0| 65 6e 74 20 2a 6e 70 3b | 0a 0a 0a 09 70 72 6f 67 |ent *np;|....prog|
|000013e0| 20 3d 20 2a 61 72 67 76 | 2b 2b 3b 0a 09 61 72 67 | = *argv|++;..arg|
|000013f0| 63 2d 2d 3b 0a 0a 09 2f | 2a 20 70 72 6f 63 65 73 |c--;.../|* proces|
|00001400| 73 20 6f 70 74 69 6f 6e | 73 3a 0a 09 20 2a 20 2d |s option|s:.. * -|
|00001410| 64 20 28 64 65 62 75 67 | 29 0a 09 20 2a 20 2d 74 |d (debug|).. * -t|
|00001420| 20 28 75 73 65 20 54 43 | 50 29 0a 09 20 2a 20 2d | (use TC|P).. * -|
|00001430| 72 4e 20 28 73 65 74 20 | 72 65 74 72 61 6e 73 6d |rN (set |retransm|
|00001440| 69 73 73 69 6f 6e 20 63 | 6f 75 6e 74 29 0a 09 20 |ission c|ount).. |
|00001450| 2a 20 2d 70 4e 20 28 75 | 73 65 20 70 6f 72 74 20 |* -pN (u|se port |
|00001460| 4e 20 69 6e 73 74 65 61 | 64 20 6f 66 20 31 38 29 |N instea|d of 18)|
|00001470| 0a 09 20 2a 2f 0a 0a 09 | 77 68 69 6c 65 28 61 72 |.. */...|while(ar|
|00001480| 67 63 20 26 26 20 2a 61 | 72 67 76 5b 30 5d 20 3d |gc && *a|rgv[0] =|
|00001490| 3d 20 27 2d 27 29 20 7b | 0a 09 09 28 2a 61 72 67 |= '-') {|...(*arg|
|000014a0| 76 29 2b 2b 3b 0a 09 09 | 73 77 69 74 63 68 20 28 |v)++;...|switch (|
|000014b0| 74 6f 75 70 70 65 72 28 | 2a 61 72 67 76 5b 30 5d |toupper(|*argv[0]|
|000014c0| 29 29 7b 0a 09 09 09 63 | 61 73 65 20 27 44 27 3a |)){....c|ase 'D':|
|000014d0| 0a 09 09 09 09 64 65 62 | 75 67 2b 2b 3b 0a 09 09 |.....deb|ug++;...|
|000014e0| 09 09 76 65 72 62 6f 73 | 65 2b 2b 3b 0a 09 09 09 |..verbos|e++;....|
|000014f0| 09 62 72 65 61 6b 3b 0a | 09 09 09 63 61 73 65 20 |.break;.|...case |
|00001500| 27 56 27 3a 0a 09 09 09 | 09 76 65 72 62 6f 73 65 |'V':....|.verbose|
|00001510| 2b 2b 3b 0a 09 09 09 09 | 62 72 65 61 6b 3b 0a 09 |++;.....|break;..|
|00001520| 09 09 63 61 73 65 20 27 | 54 27 3a 0a 09 09 09 09 |..case '|T':.....|
|00001530| 75 73 65 5f 74 63 70 2b | 2b 3b 0a 09 09 09 09 62 |use_tcp+|+;.....b|
|00001540| 72 65 61 6b 3b 0a 09 09 | 09 63 61 73 65 20 27 52 |reak;...|.case 'R|
|00001550| 27 3a 0a 09 09 09 09 28 | 2a 61 72 67 76 29 2b 2b |':.....(|*argv)++|
|00001560| 3b 0a 09 09 09 09 72 65 | 74 72 69 65 73 20 3d 20 |;.....re|tries = |
|00001570| 61 74 6f 69 28 2a 61 72 | 67 76 29 3b 0a 09 09 09 |atoi(*ar|gv);....|
|00001580| 09 62 72 65 61 6b 3b 0a | 09 09 09 63 61 73 65 20 |.break;.|...case |
|00001590| 27 50 27 3a 0a 09 09 09 | 09 28 2a 61 72 67 76 29 |'P':....|.(*argv)|
|000015a0| 2b 2b 3b 0a 09 09 09 09 | 70 6f 72 74 20 3d 20 61 |++;.....|port = a|
|000015b0| 74 6f 69 28 2a 61 72 67 | 76 29 3b 0a 09 09 09 09 |toi(*arg|v);.....|
|000015c0| 62 72 65 61 6b 3b 0a 09 | 09 09 64 65 66 61 75 6c |break;..|..defaul|
|000015d0| 74 3a 0a 09 09 09 09 75 | 73 61 67 65 28 29 3b 0a |t:.....u|sage();.|
|000015e0| 09 09 09 09 65 78 69 74 | 28 31 29 3b 0a 09 09 09 |....exit|(1);....|
|000015f0| 09 2f 2a 4e 4f 54 52 45 | 41 43 48 45 44 2a 2f 0a |./*NOTRE|ACHED*/.|
|00001600| 09 09 7d 0a 09 09 61 72 | 67 76 2b 2b 3b 0a 09 09 |..}...ar|gv++;...|
|00001610| 61 72 67 63 2d 2d 3b 0a | 09 7d 0a 09 69 66 28 28 |argc--;.|.}..if((|
|00001620| 61 72 67 63 20 3c 20 31 | 29 20 7c 7c 20 28 61 72 |argc < 1|) || (ar|
|00001630| 67 63 20 3e 20 32 29 29 | 20 7b 0a 09 09 75 73 61 |gc > 2))| {...usa|
|00001640| 67 65 28 29 3b 0a 09 09 | 65 78 69 74 28 31 29 3b |ge();...|exit(1);|
|00001650| 0a 09 09 2f 2a 4e 4f 54 | 52 45 41 43 48 45 44 2a |.../*NOT|REACHED*|
|00001660| 2f 0a 09 7d 0a 0a 09 2f | 2a 0a 09 20 2a 20 52 69 |/..}.../|*.. * Ri|
|00001670| 70 20 61 70 61 72 74 20 | 74 68 65 20 72 65 63 69 |p apart |the reci|
|00001680| 70 69 65 6e 74 20 66 69 | 65 6c 64 20 61 6e 64 20 |pient fi|eld and |
|00001690| 73 65 74 20 74 68 65 20 | 75 73 65 72 2c 20 74 65 |set the |user, te|
|000016a0| 72 6d 2c 0a 09 20 2a 20 | 61 6e 64 20 68 6f 73 74 |rm,.. * |and host|
|000016b0| 20 70 6f 69 6e 74 65 72 | 73 2e 0a 09 20 2a 2f 0a | pointer|s... */.|
|000016c0| 09 72 65 63 69 70 69 65 | 6e 74 20 3d 20 61 72 67 |.recipie|nt = arg|
|000016d0| 76 5b 30 5d 3b 0a 0a 09 | 6d 73 67 5f 74 65 78 74 |v[0];...|msg_text|
|000016e0| 20 3d 20 61 72 67 63 20 | 3d 3d 20 32 20 3f 20 61 | = argc |== 2 ? a|
|000016f0| 72 67 76 5b 31 5d 20 3a | 20 4e 55 4c 4c 3b 0a 0a |rgv[1] :| NULL;..|
|00001700| 09 69 66 28 64 65 62 75 | 67 29 20 70 72 69 6e 74 |.if(debu|g) print|
|00001710| 66 28 22 72 65 63 69 70 | 69 65 6e 74 20 69 73 20 |f("recip|ient is |
|00001720| 27 25 73 27 5c 6e 22 2c | 20 72 65 63 69 70 69 65 |'%s'\n",| recipie|
|00001730| 6e 74 29 3b 0a 0a 09 68 | 6f 73 74 20 3d 20 73 74 |nt);...h|ost = st|
|00001740| 72 63 68 72 28 72 65 63 | 69 70 69 65 6e 74 2c 20 |rchr(rec|ipient, |
|00001750| 27 40 27 29 3b 0a 09 69 | 66 28 68 6f 73 74 20 3d |'@');..i|f(host =|
|00001760| 3d 20 4e 55 4c 4c 29 0a | 09 09 68 6f 73 74 20 3d |= NULL).|..host =|
|00001770| 20 65 6d 70 74 79 5f 61 | 72 67 3b 0a 09 65 6c 73 | empty_a|rg;..els|
|00001780| 65 0a 09 09 2a 68 6f 73 | 74 2b 2b 20 3d 20 27 5c |e...*hos|t++ = '\|
|00001790| 30 27 3b 0a 0a 09 74 65 | 72 6d 20 3d 20 73 74 72 |0';...te|rm = str|
|000017a0| 63 68 72 28 72 65 63 69 | 70 69 65 6e 74 2c 20 27 |chr(reci|pient, '|
|000017b0| 3a 27 29 3b 0a 09 69 66 | 28 74 65 72 6d 20 3d 3d |:');..if|(term ==|
|000017c0| 20 4e 55 4c 4c 29 0a 09 | 09 74 65 72 6d 20 3d 20 | NULL)..|.term = |
|000017d0| 65 6d 70 74 79 5f 61 72 | 67 3b 0a 09 65 6c 73 65 |empty_ar|g;..else|
|000017e0| 0a 09 09 2a 74 65 72 6d | 2b 2b 20 3d 20 27 5c 30 |...*term|++ = '\0|
|000017f0| 27 3b 0a 09 69 66 28 21 | 73 74 72 63 6d 70 28 74 |';..if(!|strcmp(t|
|00001800| 65 72 6d 2c 20 22 61 6c | 6c 22 29 29 09 2f 2a 20 |erm, "al|l"))./* |
|00001810| 65 78 74 65 72 6e 61 6c | 20 66 6f 72 6d 20 69 73 |external| form is|
|00001820| 20 22 61 6c 6c 22 20 2a | 2f 0a 09 09 73 74 72 63 | "all" *|/...strc|
|00001830| 70 79 28 74 65 72 6d 2c | 20 22 2a 22 29 3b 09 09 |py(term,| "*");..|
|00001840| 2f 2a 20 70 72 6f 74 6f | 63 6f 6c 20 75 73 65 73 |/* proto|col uses|
|00001850| 20 22 2a 22 20 2a 2f 0a | 0a 09 75 73 65 72 20 3d | "*" */.|..user =|
|00001860| 20 72 65 63 69 70 69 65 | 6e 74 3b 0a 0a 09 69 66 | recipie|nt;...if|
|00001870| 28 64 65 62 75 67 29 20 | 70 72 69 6e 74 66 28 22 |(debug) |printf("|
|00001880| 75 73 65 72 20 3d 20 27 | 25 73 27 2c 20 74 65 72 |user = '|%s', ter|
|00001890| 6d 3d 27 25 73 27 2c 20 | 68 6f 73 74 20 3d 20 27 |m='%s', |host = '|
|000018a0| 25 73 27 5c 6e 22 2c 0a | 09 09 75 73 65 72 2c 20 |%s'\n",.|..user, |
|000018b0| 74 65 72 6d 2c 20 68 6f | 73 74 29 3b 0a 0a 09 62 |term, ho|st);...b|
|000018c0| 72 6f 61 64 63 61 73 74 | 69 6e 67 20 3d 20 28 68 |roadcast|ing = (h|
|000018d0| 6f 73 74 5b 30 5d 20 3d | 3d 20 27 5c 30 27 29 3b |ost[0] =|= '\0');|
|000018e0| 0a 0a 09 73 69 6e 2e 73 | 69 6e 5f 66 61 6d 69 6c |...sin.s|in_famil|
|000018f0| 79 20 3d 20 41 46 5f 49 | 4e 45 54 3b 0a 0a 09 2f |y = AF_I|NET;.../|
|00001900| 2a 0a 09 20 2a 20 63 6f | 6d 70 75 74 65 20 74 68 |*.. * co|mpute th|
|00001910| 65 20 70 6f 72 74 20 74 | 6f 20 75 73 65 3a 20 63 |e port t|o use: c|
|00001920| 6f 6e 73 75 6c 74 20 2f | 65 74 63 2f 73 65 72 76 |onsult /|etc/serv|
|00001930| 69 63 65 73 2c 20 62 75 | 74 20 69 66 20 6e 6f 74 |ices, bu|t if not|
|00001940| 0a 09 20 2a 20 66 6f 75 | 6e 64 20 75 73 65 20 31 |.. * fou|nd use 1|
|00001950| 38 20 28 66 72 6f 6d 20 | 74 68 65 20 52 46 43 29 |8 (from |the RFC)|
|00001960| 2e 20 74 68 65 20 2d 70 | 4e 20 6f 70 74 69 6f 6e |. the -p|N option|
|00001970| 20 6f 76 65 72 72 69 64 | 65 73 0a 09 20 2a 2f 0a | overrid|es.. */.|
|00001980| 0a 09 69 66 28 70 6f 72 | 74 20 3d 3d 20 30 29 20 |..if(por|t == 0) |
|00001990| 7b 0a 09 09 73 70 20 3d | 20 67 65 74 73 65 72 76 |{...sp =| getserv|
|000019a0| 62 79 6e 61 6d 65 28 22 | 6d 65 73 73 61 67 65 22 |byname("|message"|
|000019b0| 2c 20 28 75 73 65 5f 74 | 63 70 20 3f 20 22 74 63 |, (use_t|cp ? "tc|
|000019c0| 70 22 20 3a 20 22 75 64 | 70 22 29 29 3b 0a 09 09 |p" : "ud|p"));...|
|000019d0| 69 66 28 73 70 29 0a 09 | 09 09 73 69 6e 2e 73 69 |if(sp)..|..sin.si|
|000019e0| 6e 5f 70 6f 72 74 20 3d | 20 73 70 2d 3e 73 5f 70 |n_port =| sp->s_p|
|000019f0| 6f 72 74 3b 0a 09 09 65 | 6c 73 65 0a 09 09 09 73 |ort;...e|lse....s|
|00001a00| 69 6e 2e 73 69 6e 5f 70 | 6f 72 74 20 3d 20 68 74 |in.sin_p|ort = ht|
|00001a10| 6f 6e 73 28 31 38 29 3b | 09 2f 2a 20 66 72 6f 6d |ons(18);|./* from|
|00001a20| 20 74 68 65 20 52 46 43 | 20 2a 2f 0a 09 7d 0a 09 | the RFC| */..}..|
|00001a30| 65 6c 73 65 0a 09 09 73 | 69 6e 2e 73 69 6e 5f 70 |else...s|in.sin_p|
|00001a40| 6f 72 74 20 3d 20 68 74 | 6f 6e 73 28 70 6f 72 74 |ort = ht|ons(port|
|00001a50| 29 3b 0a 0a 20 0a 09 69 | 66 28 64 65 62 75 67 29 |);.. ..i|f(debug)|
|00001a60| 20 70 72 69 6e 74 66 28 | 22 75 73 69 6e 67 20 70 | printf(|"using p|
|00001a70| 6f 72 74 20 25 64 5c 6e | 22 2c 20 68 74 6f 6e 73 |ort %d\n|", htons|
|00001a80| 28 73 69 6e 2e 73 69 6e | 5f 70 6f 72 74 29 29 3b |(sin.sin|_port));|
|00001a90| 0a 0a 09 2f 2a 0a 09 20 | 2a 20 63 68 65 63 6b 20 |.../*.. |* check |
|00001aa0| 74 6f 20 73 65 65 20 69 | 66 20 77 65 27 72 65 20 |to see i|f we're |
|00001ab0| 62 72 6f 61 64 63 61 73 | 74 69 6e 67 3b 20 69 66 |broadcas|ting; if|
|00001ac0| 20 73 6f 2c 20 69 67 6e | 6f 72 65 20 75 73 65 5f | so, ign|ore use_|
|00001ad0| 74 63 70 20 61 6e 64 0a | 09 20 2a 20 62 75 69 6c |tcp and.|. * buil|
|00001ae0| 64 20 61 20 62 72 6f 61 | 64 63 61 73 74 20 61 64 |d a broa|dcast ad|
|00001af0| 64 72 65 73 73 2e 20 6f | 74 68 65 72 77 69 73 65 |dress. o|therwise|
|00001b00| 20 62 75 69 6c 64 20 61 | 6e 20 61 64 64 72 65 73 | build a|n addres|
|00001b10| 73 20 66 6f 72 0a 09 20 | 2a 20 74 68 65 20 64 65 |s for.. |* the de|
|00001b20| 73 69 67 6e 61 74 65 64 | 20 68 6f 73 74 0a 09 20 |signated| host.. |
|00001b30| 2a 2f 0a 0a 09 69 66 28 | 62 72 6f 61 64 63 61 73 |*/...if(|broadcas|
|00001b40| 74 69 6e 67 29 20 7b 0a | 09 09 69 66 28 75 73 65 |ting) {.|..if(use|
|00001b50| 5f 74 63 70 29 0a 09 09 | 09 66 70 72 69 6e 74 66 |_tcp)...|.fprintf|
|00001b60| 28 73 74 64 65 72 72 2c | 20 22 25 73 3a 20 62 72 |(stderr,| "%s: br|
|00001b70| 6f 61 64 63 61 73 74 20 | 72 65 71 75 65 73 74 65 |oadcast |requeste|
|00001b80| 64 2c 20 73 6f 20 2d 74 | 20 69 73 20 69 67 6e 6f |d, so -t| is igno|
|00001b90| 72 65 64 5c 6e 22 2c 20 | 70 72 6f 67 29 3b 0a 09 |red\n", |prog);..|
|00001ba0| 09 75 73 65 5f 74 63 70 | 20 3d 20 30 3b 0a 09 7d |.use_tcp| = 0;..}|
|00001bb0| 0a 09 65 6c 73 65 20 7b | 0a 09 09 68 70 20 3d 20 |..else {|...hp = |
|00001bc0| 67 65 74 68 6f 73 74 62 | 79 6e 61 6d 65 28 68 6f |gethostb|yname(ho|
|00001bd0| 73 74 29 3b 0a 09 09 69 | 66 28 68 70 20 3d 3d 20 |st);...i|f(hp == |
|00001be0| 4e 55 4c 4c 29 20 7b 0a | 09 09 09 2f 2a 20 58 58 |NULL) {.|.../* XX|
|00001bf0| 58 20 6e 65 65 64 20 74 | 6f 20 61 64 64 20 73 74 |X need t|o add st|
|00001c00| 75 66 66 20 74 6f 20 68 | 61 6e 64 6c 65 20 64 6f |uff to h|andle do|
|00001c10| 74 74 65 64 20 49 50 20 | 61 64 64 72 65 73 73 65 |tted IP |addresse|
|00001c20| 73 20 2a 2f 0a 09 09 09 | 66 70 72 69 6e 74 66 28 |s */....|fprintf(|
|00001c30| 73 74 64 65 72 72 2c 20 | 22 25 73 3a 20 75 6e 6b |stderr, |"%s: unk|
|00001c40| 6e 6f 77 6e 20 68 6f 73 | 74 3a 20 25 73 5c 6e 22 |nown hos|t: %s\n"|
|00001c50| 2c 20 70 72 6f 67 2c 20 | 68 6f 73 74 29 3b 0a 09 |, prog, |host);..|
|00001c60| 09 09 65 78 69 74 28 32 | 29 3b 0a 09 09 7d 0a 09 |..exit(2|);...}..|
|00001c70| 09 6d 65 6d 63 70 79 28 | 28 63 68 61 72 20 2a 29 |.memcpy(|(char *)|
|00001c80| 26 73 69 6e 2e 73 69 6e | 5f 61 64 64 72 2c 20 28 |&sin.sin|_addr, (|
|00001c90| 63 68 61 72 20 2a 29 68 | 70 2d 3e 68 5f 61 64 64 |char *)h|p->h_add|
|00001ca0| 72 2c 20 68 70 2d 3e 68 | 5f 6c 65 6e 67 74 68 29 |r, hp->h|_length)|
|00001cb0| 3b 0a 09 7d 0a 0a 09 2f | 2a 0a 09 20 2a 20 6e 6f |;..}.../|*.. * no|
|00001cc0| 77 20 61 73 73 65 6d 62 | 6c 65 20 74 68 65 20 6d |w assemb|le the m|
|00001cd0| 65 73 73 61 67 65 2e 20 | 6e 6f 74 65 20 74 68 61 |essage. |note tha|
|00001ce0| 74 20 74 68 69 73 20 70 | 72 6f 63 65 64 75 72 65 |t this p|rocedure|
|00001cf0| 20 77 69 6c 6c 20 6f 6e | 6c 79 0a 09 20 2a 20 72 | will on|ly.. * r|
|00001d00| 65 74 75 72 6e 20 69 66 | 20 74 68 65 20 61 73 73 |eturn if| the ass|
|00001d10| 65 6d 62 6c 79 20 69 73 | 20 73 75 63 63 65 73 73 |embly is| success|
|00001d20| 66 75 6c 0a 09 20 2a 2f | 0a 09 61 73 73 65 6d 62 |ful.. */|..assemb|
|00001d30| 6c 65 5f 6d 65 73 73 61 | 67 65 28 75 73 65 72 2c |le_messa|ge(user,|
|00001d40| 20 74 65 72 6d 2c 20 6d | 73 67 5f 74 65 78 74 29 | term, m|sg_text)|
|00001d50| 3b 0a 0a 09 2f 2a 0a 09 | 20 2a 20 69 66 20 62 72 |;.../*..| * if br|
|00001d60| 6f 61 64 63 61 73 74 2c | 20 69 6e 76 6f 6b 65 20 |oadcast,| invoke |
|00001d70| 62 72 6f 61 64 63 61 73 | 74 5f 6d 73 67 0a 09 20 |broadcas|t_msg.. |
|00001d80| 2a 2f 0a 09 69 66 28 62 | 72 6f 61 64 63 61 73 74 |*/..if(b|roadcast|
|00001d90| 69 6e 67 29 20 7b 0a 09 | 09 62 72 6f 61 64 63 61 |ing) {..|.broadca|
|00001da0| 73 74 5f 6d 73 67 28 26 | 73 69 6e 2c 20 72 65 74 |st_msg(&|sin, ret|
|00001db0| 72 69 65 73 29 3b 0a 09 | 09 65 78 69 74 28 30 29 |ries);..|.exit(0)|
|00001dc0| 3b 0a 09 09 2f 2a 4e 4f | 54 52 45 41 43 48 45 44 |;.../*NO|TREACHED|
|00001dd0| 2a 2f 0a 09 7d 0a 0a 0a | 09 2f 2a 0a 09 20 2a 20 |*/..}...|./*.. * |
|00001de0| 69 66 20 72 65 71 75 65 | 73 74 65 64 2c 20 61 74 |if reque|sted, at|
|00001df0| 74 65 6d 70 74 20 74 6f | 20 73 65 6e 64 20 6d 65 |tempt to| send me|
|00001e00| 73 73 61 67 65 20 76 69 | 61 20 54 43 50 0a 09 20 |ssage vi|a TCP.. |
|00001e10| 2a 2f 0a 09 69 66 28 75 | 73 65 5f 74 63 70 29 0a |*/..if(u|se_tcp).|
|00001e20| 09 09 74 63 70 5f 6d 73 | 67 28 26 73 69 6e 29 3b |..tcp_ms|g(&sin);|
|00001e30| 0a 09 2f 2a 0a 09 20 2a | 20 49 66 20 74 63 70 5f |../*.. *| If tcp_|
|00001e40| 6d 73 67 20 72 65 74 75 | 72 6e 73 2c 20 69 74 20 |msg retu|rns, it |
|00001e50| 6d 65 61 6e 73 20 74 68 | 61 74 20 69 74 20 77 61 |means th|at it wa|
|00001e60| 73 20 75 6e 61 62 6c 65 | 20 74 6f 20 62 69 6e 64 |s unable| to bind|
|00001e70| 0a 09 20 2a 20 74 6f 20 | 74 68 65 20 70 6f 72 74 |.. * to |the port|
|00001e80| 20 6f 6e 20 74 68 65 20 | 73 65 72 76 65 72 2e 20 | on the |server. |
|00001e90| 49 6e 20 74 68 69 73 20 | 63 61 73 65 2c 20 72 65 |In this |case, re|
|00001ea0| 76 65 72 74 20 74 6f 20 | 55 44 50 2e 0a 09 20 2a |vert to |UDP... *|
|00001eb0| 2f 0a 09 75 64 70 5f 6d | 73 67 28 26 73 69 6e 2c |/..udp_m|sg(&sin,|
|00001ec0| 20 72 65 74 72 69 65 73 | 29 3b 0a 09 65 78 69 74 | retries|);..exit|
|00001ed0| 28 30 29 3b 0a 7d 0a 0a | 2f 2a 0a 20 2a 20 61 73 |(0);.}..|/*. * as|
|00001ee0| 73 65 6d 62 6c 65 5f 6d | 65 73 73 61 67 65 20 61 |semble_m|essage a|
|00001ef0| 73 73 65 6d 62 6c 65 73 | 20 61 20 63 6f 6d 70 6c |ssembles| a compl|
|00001f00| 65 74 65 20 6d 65 73 73 | 61 67 65 20 69 6e 20 74 |ete mess|age in t|
|00001f10| 68 65 20 62 75 66 66 65 | 72 0a 20 2a 20 6d 73 67 |he buffe|r. * msg|
|00001f20| 20 61 6e 64 20 73 74 6f | 72 65 73 20 74 68 65 20 | and sto|res the |
|00001f30| 6c 65 6e 67 74 68 20 69 | 6e 20 6d 73 67 5f 6c 65 |length i|n msg_le|
|00001f40| 6e 2e 20 4e 6f 74 65 20 | 74 68 61 74 2c 20 61 73 |n. Note |that, as|
|00001f50| 20 64 65 66 69 6e 65 64 | 0a 20 2a 20 62 79 20 74 | defined|. * by t|
|00001f60| 68 65 20 52 46 43 2c 20 | 74 68 65 20 6d 65 73 73 |he RFC, |the mess|
|00001f70| 61 67 65 20 62 75 66 66 | 65 72 20 69 6e 63 6c 75 |age buff|er inclu|
|00001f80| 64 65 73 20 65 6d 62 65 | 64 64 65 64 20 6e 75 6c |des embe|dded nul|
|00001f90| 6c 73 2e 0a 20 2a 2f 0a | 0a 76 6f 69 64 0a 61 73 |ls.. */.|.void.as|
|00001fa0| 73 65 6d 62 6c 65 5f 6d | 65 73 73 61 67 65 28 75 |semble_m|essage(u|
|00001fb0| 73 65 72 2c 20 74 65 72 | 6d 2c 20 6d 73 67 5f 74 |ser, ter|m, msg_t|
|00001fc0| 65 78 74 29 0a 63 68 61 | 72 20 2a 75 73 65 72 3b |ext).cha|r *user;|
|00001fd0| 0a 63 68 61 72 20 2a 74 | 65 72 6d 3b 0a 63 68 61 |.char *t|erm;.cha|
|00001fe0| 72 20 2a 6d 73 67 5f 74 | 65 78 74 3b 0a 7b 0a 09 |r *msg_t|ext;.{..|
|00001ff0| 63 68 61 72 20 2a 63 70 | 3b 0a 09 69 6e 74 20 69 |char *cp|;..int i|
|00002000| 3b 0a 09 69 6e 74 20 6a | 3b 0a 09 63 68 61 72 20 |;..int j|;..char |
|00002010| 6c 69 6e 65 62 75 66 66 | 5b 32 35 36 5d 3b 0a 09 |linebuff|[256];..|
|00002020| 73 74 72 75 63 74 20 75 | 74 6d 70 20 2a 75 74 70 |struct u|tmp *utp|
|00002030| 3b 0a 09 63 68 61 72 20 | 2a 64 70 3b 0a 0a 09 63 |;..char |*dp;...c|
|00002040| 70 20 3d 20 6d 73 67 3b | 0a 0a 09 2a 63 70 2b 2b |p = msg;|...*cp++|
|00002050| 20 3d 20 27 42 27 3b 09 | 2f 2a 20 70 65 72 20 52 | = 'B';.|/* per R|
|00002060| 46 43 20 2a 2f 0a 09 6d | 73 67 5f 6c 65 6e 20 3d |FC */..m|sg_len =|
|00002070| 20 31 3b 0a 0a 23 64 65 | 66 69 6e 65 20 41 50 50 | 1;..#de|fine APP|
|00002080| 45 4e 44 28 73 29 09 7b | 73 74 72 63 70 79 28 63 |END(s).{|strcpy(c|
|00002090| 70 2c 20 73 29 3b 20 6a | 20 3d 20 73 74 72 6c 65 |p, s); j| = strle|
|000020a0| 6e 28 73 29 3b 20 63 70 | 20 2b 3d 20 6a 3b 20 2a |n(s); cp| += j; *|
|000020b0| 63 70 2b 2b 20 3d 20 27 | 5c 30 27 3b 20 6d 73 67 |cp++ = '|\0'; msg|
|000020c0| 5f 6c 65 6e 20 2b 3d 20 | 6a 20 2b 20 31 3b 20 7d |_len += |j + 1; }|
|000020d0| 0a 0a 09 66 69 6c 74 65 | 72 28 75 73 65 72 29 3b |...filte|r(user);|
|000020e0| 0a 09 41 50 50 45 4e 44 | 28 75 73 65 72 29 3b 0a |..APPEND|(user);.|
|000020f0| 09 66 69 6c 74 65 72 28 | 74 65 72 6d 29 3b 0a 09 |.filter(|term);..|
|00002100| 41 50 50 45 4e 44 28 74 | 65 72 6d 29 3b 0a 0a 09 |APPEND(t|erm);...|
|00002110| 69 66 20 28 6d 73 67 5f | 74 65 78 74 29 0a 09 09 |if (msg_|text)...|
|00002120| 64 6f 5f 6c 69 6e 65 28 | 6d 73 67 5f 74 65 78 74 |do_line(|msg_text|
|00002130| 2c 20 26 63 70 2c 20 26 | 6d 73 67 5f 6c 65 6e 29 |, &cp, &|msg_len)|
|00002140| 3b 0a 09 65 6c 73 65 20 | 7b 0a 09 09 77 68 69 6c |;..else |{...whil|
|00002150| 65 28 67 65 74 73 28 6c | 69 6e 65 62 75 66 66 29 |e(gets(l|inebuff)|
|00002160| 20 21 3d 20 4e 55 4c 4c | 29 20 7b 0a 09 09 09 64 | != NULL|) {....d|
|00002170| 6f 5f 6c 69 6e 65 28 6c | 69 6e 65 62 75 66 66 2c |o_line(l|inebuff,|
|00002180| 20 26 63 70 2c 20 26 6d | 73 67 5f 6c 65 6e 29 3b | &cp, &m|sg_len);|
|00002190| 0a 09 09 7d 0a 09 7d 0a | 09 0a 09 2a 63 70 2b 2b |...}..}.|...*cp++|
|000021a0| 20 3d 20 27 5c 30 27 3b | 0a 09 6d 73 67 5f 6c 65 | = '\0';|..msg_le|
|000021b0| 6e 2b 2b 3b 0a 0a 09 64 | 70 20 3d 20 67 65 74 6c |n++;...d|p = getl|
|000021c0| 6f 67 69 6e 28 29 3b 0a | 09 69 66 20 28 64 70 20 |ogin();.|.if (dp |
|000021d0| 3d 3d 20 4e 55 4c 4c 29 | 20 7b 0a 09 09 41 50 50 |== NULL)| {...APP|
|000021e0| 45 4e 44 28 65 6d 70 74 | 79 5f 61 72 67 29 3b 0a |END(empt|y_arg);.|
|000021f0| 09 7d 20 65 6c 73 65 20 | 7b 0a 09 09 41 50 50 45 |.} else |{...APPE|
|00002200| 4e 44 28 64 70 29 3b 0a | 09 7d 0a 09 69 66 28 64 |ND(dp);.|.}..if(d|
|00002210| 65 62 75 67 29 20 70 72 | 69 6e 74 66 28 22 73 65 |ebug) pr|intf("se|
|00002220| 6e 64 65 72 20 75 73 65 | 72 6e 61 6d 65 20 69 73 |nder use|rname is|
|00002230| 20 27 25 73 27 5c 6e 22 | 2c 20 28 64 70 20 3f 20 | '%s'\n"|, (dp ? |
|00002240| 64 70 20 3a 20 65 6d 70 | 74 79 5f 61 72 67 29 29 |dp : emp|ty_arg))|
|00002250| 3b 0a 09 64 70 20 3d 20 | 74 74 79 6e 61 6d 65 28 |;..dp = |ttyname(|
|00002260| 32 29 3b 20 2f 2a 20 63 | 68 65 63 6b 20 73 74 61 |2); /* c|heck sta|
|00002270| 6e 64 61 72 64 20 65 72 | 72 6f 72 20 2a 2f 0a 09 |ndard er|ror */..|
|00002280| 69 66 20 28 64 70 20 3d | 3d 20 4e 55 4c 4c 29 20 |if (dp =|= NULL) |
|00002290| 7b 0a 09 09 41 50 50 45 | 4e 44 28 65 6d 70 74 79 |{...APPE|ND(empty|
|000022a0| 5f 61 72 67 29 3b 0a 09 | 7d 20 65 6c 73 65 20 7b |_arg);..|} else {|
|000022b0| 0a 09 09 41 50 50 45 4e | 44 28 64 70 29 3b 0a 09 |...APPEN|D(dp);..|
|000022c0| 7d 0a 09 69 66 28 64 65 | 62 75 67 29 20 70 72 69 |}..if(de|bug) pri|
|000022d0| 6e 74 66 28 22 73 65 6e | 64 65 72 20 74 65 72 6d |ntf("sen|der term|
|000022e0| 69 6e 61 6c 20 69 73 20 | 27 25 73 27 5c 6e 22 2c |inal is |'%s'\n",|
|000022f0| 20 28 64 70 20 3f 20 64 | 70 20 3a 20 65 6d 70 74 | (dp ? d|p : empt|
|00002300| 79 5f 61 72 67 29 29 3b | 0a 09 0a 09 73 70 72 69 |y_arg));|....spri|
|00002310| 6e 74 66 28 6c 69 6e 65 | 62 75 66 66 2c 20 22 25 |ntf(line|buff, "%|
|00002320| 6c 64 22 2c 20 74 69 6d | 65 28 4e 55 4c 4c 29 29 |ld", tim|e(NULL))|
|00002330| 3b 0a 09 41 50 50 45 4e | 44 28 6c 69 6e 65 62 75 |;..APPEN|D(linebu|
|00002340| 66 66 29 3b 0a 09 69 66 | 28 64 65 62 75 67 29 20 |ff);..if|(debug) |
|00002350| 70 72 69 6e 74 66 28 22 | 63 6f 6f 6b 69 65 20 69 |printf("|cookie i|
|00002360| 73 20 27 25 73 27 5c 6e | 22 2c 20 6c 69 6e 65 62 |s '%s'\n|", lineb|
|00002370| 75 66 66 29 3b 0a 0a 09 | 2f 2a 0a 09 20 2a 20 49 |uff);...|/*.. * I|
|00002380| 6e 20 74 68 69 73 20 76 | 65 72 73 69 6f 6e 2c 20 |n this v|ersion, |
|00002390| 77 65 20 61 6c 77 61 79 | 73 20 67 65 6e 65 72 61 |we alway|s genera|
|000023a0| 74 65 20 61 6e 20 65 6d | 70 74 79 20 73 69 67 6e |te an em|pty sign|
|000023b0| 61 74 75 72 65 20 70 61 | 72 74 0a 09 20 2a 2f 0a |ature pa|rt.. */.|
|000023c0| 09 69 66 28 64 65 62 75 | 67 29 20 70 72 69 6e 74 |.if(debu|g) print|
|000023d0| 66 28 22 73 69 67 6e 61 | 74 75 72 65 20 69 73 20 |f("signa|ture is |
|000023e0| 27 25 73 27 5c 6e 22 2c | 20 65 6d 70 74 79 5f 61 |'%s'\n",| empty_a|
|000023f0| 72 67 29 3b 0a 09 41 50 | 50 45 4e 44 28 65 6d 70 |rg);..AP|PEND(emp|
|00002400| 74 79 5f 61 72 67 29 3b | 09 2f 2a 20 6e 75 6c 6c |ty_arg);|./* null|
|00002410| 20 73 69 67 6e 61 74 75 | 72 65 20 2a 2f 0a 0a 0a | signatu|re */...|
|00002420| 09 69 66 28 64 65 62 75 | 67 29 20 70 72 69 6e 74 |.if(debu|g) print|
|00002430| 66 28 22 74 6f 74 61 6c | 20 6d 65 73 73 61 67 65 |f("total| message|
|00002440| 20 6c 65 6e 67 74 68 20 | 69 73 20 25 64 5c 6e 22 | length |is %d\n"|
|00002450| 2c 20 6d 73 67 5f 6c 65 | 6e 29 3b 0a 09 69 66 28 |, msg_le|n);..if(|
|00002460| 6d 73 67 5f 6c 65 6e 20 | 3e 20 35 31 32 29 20 7b |msg_len |> 512) {|
|00002470| 0a 09 09 66 70 72 69 6e | 74 66 28 73 74 64 65 72 |...fprin|tf(stder|
|00002480| 72 2c 20 22 25 73 3a 20 | 6d 65 73 73 61 67 65 20 |r, "%s: |message |
|00002490| 28 69 6e 63 2e 20 63 6f | 6e 74 72 6f 6c 20 66 69 |(inc. co|ntrol fi|
|000024a0| 65 6c 64 73 29 20 65 78 | 63 65 65 64 73 20 35 31 |elds) ex|ceeds 51|
|000024b0| 32 20 62 79 74 65 20 6c | 69 6d 69 74 5c 6e 22 2c |2 byte l|imit\n",|
|000024c0| 20 70 72 6f 67 29 3b 0a | 09 09 65 78 69 74 28 32 | prog);.|..exit(2|
|000024d0| 29 3b 0a 09 7d 0a 7d 0a | 0a 76 6f 69 64 0a 64 6f |);..}.}.|.void.do|
|000024e0| 5f 6c 69 6e 65 28 6c 69 | 6e 65 62 75 66 66 2c 20 |_line(li|nebuff, |
|000024f0| 63 70 70 2c 20 6d 73 67 | 5f 6c 65 6e 70 29 0a 63 |cpp, msg|_lenp).c|
|00002500| 68 61 72 20 2a 6c 69 6e | 65 62 75 66 66 3b 0a 63 |har *lin|ebuff;.c|
|00002510| 68 61 72 20 2a 2a 63 70 | 70 3b 0a 69 6e 74 20 2a |har **cp|p;.int *|
|00002520| 6d 73 67 5f 6c 65 6e 70 | 3b 0a 7b 0a 09 69 6e 74 |msg_lenp|;.{..int|
|00002530| 20 6a 3b 0a 09 63 68 61 | 72 20 2a 63 70 20 3d 20 | j;..cha|r *cp = |
|00002540| 2a 63 70 70 3b 0a 09 69 | 6e 74 20 6d 73 67 5f 6c |*cpp;..i|nt msg_l|
|00002550| 65 6e 20 3d 20 2a 6d 73 | 67 5f 6c 65 6e 70 3b 0a |en = *ms|g_lenp;.|
|00002560| 0a 09 66 69 6c 74 65 72 | 28 6c 69 6e 65 62 75 66 |..filter|(linebuf|
|00002570| 66 29 3b 0a 09 6a 20 3d | 20 73 74 72 6c 65 6e 28 |f);..j =| strlen(|
|00002580| 6c 69 6e 65 62 75 66 66 | 29 3b 0a 09 69 66 28 28 |linebuff|);..if((|
|00002590| 6d 73 67 5f 6c 65 6e 20 | 2b 20 6a 29 20 3e 20 28 |msg_len |+ j) > (|
|000025a0| 35 31 32 2d 32 38 2d 33 | 29 29 20 7b 0a 09 09 66 |512-28-3|)) {...f|
|000025b0| 70 72 69 6e 74 66 28 73 | 74 64 65 72 72 2c 20 22 |printf(s|tderr, "|
|000025c0| 25 73 3a 20 6d 65 73 73 | 61 67 65 20 28 69 6e 63 |%s: mess|age (inc|
|000025d0| 2e 20 63 6f 6e 74 72 6f | 6c 20 66 69 65 6c 64 73 |. contro|l fields|
|000025e0| 29 20 65 78 63 65 65 64 | 73 20 35 31 32 20 62 79 |) exceed|s 512 by|
|000025f0| 74 65 20 6c 69 6d 69 74 | 5c 6e 22 2c 20 70 72 6f |te limit|\n", pro|
|00002600| 67 29 3b 0a 09 09 65 78 | 69 74 28 32 29 3b 0a 09 |g);...ex|it(2);..|
|00002610| 09 2f 2a 4e 4f 54 52 45 | 41 43 48 45 44 2a 2f 0a |./*NOTRE|ACHED*/.|
|00002620| 09 7d 0a 09 73 74 72 63 | 70 79 28 63 70 2c 20 6c |.}..strc|py(cp, l|
|00002630| 69 6e 65 62 75 66 66 29 | 3b 0a 09 63 70 20 2b 3d |inebuff)|;..cp +=|
|00002640| 20 6a 3b 0a 09 2a 63 70 | 2b 2b 20 3d 20 27 5c 30 | j;..*cp|++ = '\0|
|00002650| 31 35 27 3b 0a 09 2a 63 | 70 2b 2b 20 3d 20 27 5c |15';..*c|p++ = '\|
|00002660| 30 31 32 27 3b 0a 09 6d | 73 67 5f 6c 65 6e 20 2b |012';..m|sg_len +|
|00002670| 3d 20 6a 20 2b 20 32 3b | 0a 0a 09 2a 63 70 70 20 |= j + 2;|...*cpp |
|00002680| 3d 20 63 70 3b 0a 09 2a | 6d 73 67 5f 6c 65 6e 70 |= cp;..*|msg_lenp|
|00002690| 20 3d 20 6d 73 67 5f 6c | 65 6e 3b 0a 7d 0a 0a 2f | = msg_l|en;.}../|
|000026a0| 2a 0a 20 2a 20 74 63 70 | 5f 6d 73 67 28 73 70 29 |*. * tcp|_msg(sp)|
|000026b0| 0a 20 2a 20 20 20 20 20 | 20 73 70 20 70 6f 69 6e |. *     | sp poin|
|000026c0| 74 73 20 61 74 20 61 20 | 73 6f 63 6b 61 64 64 72 |ts at a |sockaddr|
|000026d0| 5f 69 6e 20 77 68 69 63 | 68 20 63 6f 6e 74 61 69 |_in whic|h contai|
|000026e0| 6e 73 20 74 68 65 0a 20 | 2a 20 20 20 20 20 20 70 |ns the. |*      p|
|000026f0| 6f 72 74 20 74 6f 20 62 | 65 20 75 73 65 64 2e 0a |ort to b|e used..|
|00002700| 20 2a 0a 20 2a 20 53 65 | 6e 64 20 74 68 65 20 61 | *. * Se|nd the a|
|00002710| 73 73 65 6d 62 6c 65 64 | 20 6d 65 73 73 61 67 65 |ssembled| message|
|00002720| 20 75 73 69 6e 67 20 54 | 43 50 2e 20 49 66 20 74 | using T|CP. If t|
|00002730| 68 65 20 61 74 74 65 6d | 70 74 20 69 73 0a 20 2a |he attem|pt is. *|
|00002740| 20 73 75 63 63 65 73 73 | 66 75 6c 2c 20 74 68 65 | success|ful, the|
|00002750| 20 70 72 6f 67 72 61 6d | 20 65 78 69 74 73 20 77 | program| exits w|
|00002760| 69 74 68 20 61 20 73 74 | 61 74 75 73 20 6f 66 20 |ith a st|atus of |
|00002770| 30 2e 20 49 66 20 61 20 | 63 6c 69 65 6e 74 2d 0a |0. If a |client-.|
|00002780| 20 2a 20 73 69 64 65 20 | 65 72 72 6f 72 20 6f 63 | * side |error oc|
|00002790| 63 75 72 73 20 28 65 2e | 67 2e 20 75 6e 61 62 6c |curs (e.|g. unabl|
|000027a0| 65 20 74 6f 20 6f 70 65 | 6e 20 61 20 73 6f 63 6b |e to ope|n a sock|
|000027b0| 65 74 29 20 74 68 65 20 | 70 72 6f 67 72 61 6d 0a |et) the |program.|
|000027c0| 20 2a 20 65 78 69 74 73 | 20 77 69 74 68 20 61 20 | * exits| with a |
|000027d0| 70 6f 73 69 74 69 76 65 | 20 6e 6f 6e 2d 7a 65 72 |positive| non-zer|
|000027e0| 6f 20 73 74 61 74 75 73 | 2e 20 49 66 20 69 74 20 |o status|. If it |
|000027f0| 70 72 6f 76 65 73 20 69 | 6d 70 6f 73 73 69 62 6c |proves i|mpossibl|
|00002800| 65 0a 20 2a 20 74 6f 20 | 63 6f 6e 6e 65 63 74 20 |e. * to |connect |
|00002810| 74 6f 20 74 68 65 20 73 | 65 72 76 65 72 2c 20 61 |to the s|erver, a|
|00002820| 6e 20 65 72 72 6f 72 20 | 6d 65 73 73 61 67 65 20 |n error |message |
|00002830| 69 73 20 64 69 73 70 6c | 61 79 65 64 20 61 6e 64 |is displ|ayed and|
|00002840| 0a 20 2a 20 74 68 65 20 | 70 72 6f 63 65 64 75 72 |. * the |procedur|
|00002850| 65 20 72 65 74 75 72 6e | 73 2e 20 54 68 69 73 20 |e return|s. This |
|00002860| 61 6c 6c 6f 77 73 20 74 | 68 65 20 63 61 6c 6c 65 |allows t|he calle|
|00002870| 72 20 74 6f 20 72 65 74 | 72 79 20 75 73 69 6e 67 |r to ret|ry using|
|00002880| 0a 20 2a 20 55 44 50 2e | 0a 20 2a 2f 0a 09 20 0a |. * UDP.|. */.. .|
|00002890| 76 6f 69 64 0a 74 63 70 | 5f 6d 73 67 20 28 73 70 |void.tcp|_msg (sp|
|000028a0| 29 0a 73 74 72 75 63 74 | 20 73 6f 63 6b 61 64 64 |).struct| sockadd|
|000028b0| 72 5f 69 6e 20 2a 73 70 | 3b 0a 0a 7b 0a 09 69 6e |r_in *sp|;..{..in|
|000028c0| 74 09 73 3b 0a 09 69 6e | 74 20 6f 6e 20 3d 20 31 |t.s;..in|t on = 1|
|000028d0| 3b 0a 09 73 74 72 75 63 | 74 20 73 6f 63 6b 61 64 |;..struc|t sockad|
|000028e0| 64 72 5f 69 6e 20 73 69 | 6e 3b 0a 09 63 68 61 72 |dr_in si|n;..char|
|000028f0| 20 72 63 76 62 75 66 5b | 32 35 36 5d 3b 0a 09 69 | rcvbuf[|256];..i|
|00002900| 6e 74 20 72 76 61 6c 3b | 0a 0a 69 66 28 64 65 62 |nt rval;|..if(deb|
|00002910| 75 67 29 20 70 72 69 6e | 74 66 28 22 69 6e 76 6f |ug) prin|tf("invo|
|00002920| 6b 65 64 20 74 63 70 5f | 6d 73 67 28 29 5c 6e 22 |ked tcp_|msg()\n"|
|00002930| 29 3b 0a 0a 09 69 66 28 | 28 73 20 3d 20 73 6f 63 |);...if(|(s = soc|
|00002940| 6b 65 74 28 41 46 5f 49 | 4e 45 54 2c 20 53 4f 43 |ket(AF_I|NET, SOC|
|00002950| 4b 5f 53 54 52 45 41 4d | 2c 20 30 29 29 20 3c 20 |K_STREAM|, 0)) < |
|00002960| 30 29 20 7b 0a 09 09 66 | 70 72 69 6e 74 66 28 73 |0) {...f|printf(s|
|00002970| 74 64 65 72 72 2c 20 22 | 25 73 3a 20 75 6e 61 62 |tderr, "|%s: unab|
|00002980| 6c 65 20 74 6f 20 6f 70 | 65 6e 20 73 6f 63 6b 65 |le to op|en socke|
|00002990| 74 2e 5c 6e 22 2c 20 70 | 72 6f 67 29 3b 0a 09 09 |t.\n", p|rog);...|
|000029a0| 70 65 72 72 6f 72 28 22 | 52 65 61 73 6f 6e 22 29 |perror("|Reason")|
|000029b0| 3b 0a 09 09 65 78 69 74 | 28 33 29 3b 0a 09 7d 0a |;...exit|(3);..}.|
|000029c0| 0a 09 73 69 6e 2e 73 69 | 6e 5f 66 61 6d 69 6c 79 |..sin.si|n_family|
|000029d0| 20 3d 20 41 46 5f 49 4e | 45 54 3b 0a 09 73 69 6e | = AF_IN|ET;..sin|
|000029e0| 2e 73 69 6e 5f 61 64 64 | 72 2e 73 5f 61 64 64 72 |.sin_add|r.s_addr|
|000029f0| 20 3d 20 68 74 6f 6e 6c | 28 49 4e 41 44 44 52 5f | = htonl|(INADDR_|
|00002a00| 41 4e 59 29 3b 0a 09 73 | 69 6e 2e 73 69 6e 5f 70 |ANY);..s|in.sin_p|
|00002a10| 6f 72 74 20 3d 20 68 74 | 6f 6e 73 28 30 29 3b 0a |ort = ht|ons(0);.|
|00002a20| 0a 09 69 66 28 62 69 6e | 64 28 73 2c 20 28 73 74 |..if(bin|d(s, (st|
|00002a30| 72 75 63 74 20 73 6f 63 | 6b 61 64 64 72 20 2a 29 |ruct soc|kaddr *)|
|00002a40| 26 73 69 6e 2c 20 73 69 | 7a 65 6f 66 20 73 69 6e |&sin, si|zeof sin|
|00002a50| 29 20 3c 20 30 29 20 7b | 0a 09 09 66 70 72 69 6e |) < 0) {|...fprin|
|00002a60| 74 66 28 73 74 64 65 72 | 72 2c 20 22 25 73 3a 20 |tf(stder|r, "%s: |
|00002a70| 75 6e 61 62 6c 65 20 74 | 6f 20 73 65 74 20 6c 6f |unable t|o set lo|
|00002a80| 63 61 6c 20 73 6f 63 6b | 65 74 20 61 64 64 72 65 |cal sock|et addre|
|00002a90| 73 73 2e 5c 6e 22 2c 20 | 70 72 6f 67 29 3b 0a 09 |ss.\n", |prog);..|
|00002aa0| 09 70 65 72 72 6f 72 28 | 22 52 65 61 73 6f 6e 22 |.perror(|"Reason"|
|00002ab0| 29 3b 0a 09 09 65 78 69 | 74 28 33 29 3b 0a 09 7d |);...exi|t(3);..}|
|00002ac0| 0a 0a 09 69 66 28 63 6f | 6e 6e 65 63 74 28 73 2c |...if(co|nnect(s,|
|00002ad0| 20 28 73 74 72 75 63 74 | 20 73 6f 63 6b 61 64 64 | (struct| sockadd|
|00002ae0| 72 20 2a 29 73 70 2c 20 | 73 69 7a 65 6f 66 20 28 |r *)sp, |sizeof (|
|00002af0| 2a 73 70 29 29 20 3c 20 | 30 29 20 7b 0a 09 09 66 |*sp)) < |0) {...f|
|00002b00| 70 72 69 6e 74 66 28 73 | 74 64 65 72 72 2c 20 22 |printf(s|tderr, "|
|00002b10| 25 73 3a 20 75 6e 61 62 | 6c 65 20 74 6f 20 63 6f |%s: unab|le to co|
|00002b20| 6e 6e 65 63 74 20 74 6f | 20 54 43 50 20 73 65 72 |nnect to| TCP ser|
|00002b30| 76 65 72 2e 5c 6e 22 2c | 20 0a 09 09 09 70 72 6f |ver.\n",| ....pro|
|00002b40| 67 29 3b 0a 09 09 70 65 | 72 72 6f 72 28 22 52 65 |g);...pe|rror("Re|
|00002b50| 61 73 6f 6e 22 29 3b 0a | 09 09 72 65 74 75 72 6e |ason");.|..return|
|00002b60| 3b 0a 09 09 2f 2a 4e 4f | 54 52 45 41 43 48 45 44 |;.../*NO|TREACHED|
|00002b70| 2a 2f 0a 09 7d 0a 0a 09 | 69 66 28 76 65 72 62 6f |*/..}...|if(verbo|
|00002b80| 73 65 29 0a 09 09 70 72 | 69 6e 74 66 28 22 73 65 |se)...pr|intf("se|
|00002b90| 6e 64 69 6e 67 20 6d 65 | 73 73 61 67 65 2e 2e 2e |nding me|ssage...|
|00002ba0| 5c 6e 22 29 3b 0a 09 69 | 66 28 77 72 69 74 65 28 |\n");..i|f(write(|
|00002bb0| 73 2c 20 6d 73 67 2c 20 | 6d 73 67 5f 6c 65 6e 29 |s, msg, |msg_len)|
|00002bc0| 20 3c 20 30 29 20 7b 0a | 09 09 66 70 72 69 6e 74 | < 0) {.|..fprint|
|00002bd0| 66 28 73 74 64 65 72 72 | 2c 20 22 25 73 3a 20 75 |f(stderr|, "%s: u|
|00002be0| 6e 61 62 6c 65 20 74 6f | 20 73 65 6e 64 20 6d 65 |nable to| send me|
|00002bf0| 73 73 61 67 65 2e 5c 6e | 22 2c 20 70 72 6f 67 29 |ssage.\n|", prog)|
|00002c00| 3b 0a 09 09 70 65 72 72 | 6f 72 28 22 52 65 61 73 |;...perr|or("Reas|
|00002c10| 6f 6e 22 29 3b 0a 09 09 | 65 78 69 74 28 33 29 3b |on");...|exit(3);|
|00002c20| 0a 09 7d 0a 09 09 2f 2a | 0a 09 09 20 2a 20 77 61 |..}.../*|... * wa|
|00002c30| 69 74 20 66 6f 72 20 72 | 65 70 6c 79 0a 09 09 20 |it for r|eply... |
|00002c40| 2a 2f 0a 09 72 76 61 6c | 20 3d 20 72 65 61 64 28 |*/..rval| = read(|
|00002c50| 73 2c 20 72 63 76 62 75 | 66 2c 20 32 35 36 29 3b |s, rcvbu|f, 256);|
|00002c60| 0a 09 69 66 28 72 76 61 | 6c 20 3c 20 31 29 20 7b |..if(rva|l < 1) {|
|00002c70| 0a 09 09 66 70 72 69 6e | 74 66 28 73 74 64 65 72 |...fprin|tf(stder|
|00002c80| 72 2c 20 22 25 73 3a 20 | 6e 6f 20 72 65 70 6c 79 |r, "%s: |no reply|
|00002c90| 20 72 65 63 65 69 76 65 | 64 2e 5c 6e 22 2c 20 70 | receive|d.\n", p|
|00002ca0| 72 6f 67 29 3b 0a 09 09 | 70 65 72 72 6f 72 28 22 |rog);...|perror("|
|00002cb0| 52 65 61 73 6f 6e 22 29 | 3b 0a 09 09 65 78 69 74 |Reason")|;...exit|
|00002cc0| 28 33 29 3b 0a 09 7d 0a | 09 72 63 76 62 75 66 5b |(3);..}.|.rcvbuf[|
|00002cd0| 72 76 61 6c 5d 20 3d 20 | 27 5c 30 27 3b 0a 09 69 |rval] = |'\0';..i|
|00002ce0| 66 28 64 65 62 75 67 29 | 20 70 72 69 6e 74 66 28 |f(debug)| printf(|
|00002cf0| 22 72 65 70 6c 79 3a 27 | 25 73 27 5c 6e 22 2c 20 |"reply:'|%s'\n", |
|00002d00| 72 63 76 62 75 66 29 3b | 0a 09 69 66 28 72 63 76 |rcvbuf);|..if(rcv|
|00002d10| 62 75 66 5b 30 5d 20 3d | 3d 20 27 2b 27 29 20 7b |buf[0] =|= '+') {|
|00002d20| 0a 09 09 69 66 28 76 65 | 72 62 6f 73 65 29 20 70 |...if(ve|rbose) p|
|00002d30| 72 69 6e 74 66 28 22 6d | 65 73 73 61 67 65 20 64 |rintf("m|essage d|
|00002d40| 65 6c 69 76 65 72 65 64 | 20 74 6f 20 72 65 63 69 |elivered| to reci|
|00002d50| 70 69 65 6e 74 5c 6e 22 | 29 3b 0a 09 09 65 78 69 |pient\n"|);...exi|
|00002d60| 74 28 30 29 3b 0a 09 09 | 2f 2a 4e 4f 54 52 45 41 |t(0);...|/*NOTREA|
|00002d70| 43 48 45 44 2a 2f 0a 09 | 7d 20 65 6c 73 65 20 7b |CHED*/..|} else {|
|00002d80| 0a 09 09 69 66 28 76 65 | 72 62 6f 73 65 29 20 70 |...if(ve|rbose) p|
|00002d90| 72 69 6e 74 66 28 22 6d | 65 73 73 61 67 65 20 6e |rintf("m|essage n|
|00002da0| 6f 74 20 64 65 6c 69 76 | 65 72 65 64 5c 6e 22 29 |ot deliv|ered\n")|
|00002db0| 3b 0a 09 09 65 78 69 74 | 28 35 29 3b 0a 09 09 2f |;...exit|(5);.../|
|00002dc0| 2a 4e 4f 54 52 45 41 43 | 48 45 44 2a 2f 0a 09 7d |*NOTREAC|HED*/..}|
|00002dd0| 0a 7d 0a 0a 2f 2a 0a 20 | 2a 20 75 64 70 5f 6d 73 |.}../*. |* udp_ms|
|00002de0| 67 28 73 70 2c 20 72 29 | 0a 20 2a 20 20 20 20 20 |g(sp, r)|. *     |
|00002df0| 20 73 70 20 70 6f 69 6e | 74 73 20 61 74 20 61 20 | sp poin|ts at a |
|00002e00| 73 6f 63 6b 61 64 64 72 | 5f 69 6e 20 77 68 69 63 |sockaddr|_in whic|
|00002e10| 68 20 63 6f 6e 74 61 69 | 6e 73 20 74 68 65 0a 20 |h contai|ns the. |
|00002e20| 2a 20 20 20 20 20 20 70 | 6f 72 74 20 74 6f 20 62 |*      p|ort to b|
|00002e30| 65 20 75 73 65 64 2e 0a | 20 2a 20 20 20 20 20 20 |e used..| *      |
|00002e40| 72 20 69 73 20 74 68 65 | 20 72 65 74 72 79 20 63 |r is the| retry c|
|00002e50| 6f 75 6e 74 20 74 6f 20 | 62 65 20 75 73 65 64 2e |ount to |be used.|
|00002e60| 0a 20 2a 0a 20 2a 20 53 | 65 6e 64 20 74 68 65 20 |. *. * S|end the |
|00002e70| 61 73 73 65 6d 62 6c 65 | 64 20 6d 65 73 73 61 67 |assemble|d messag|
|00002e80| 65 20 74 6f 20 61 20 73 | 70 65 63 69 66 69 63 20 |e to a s|pecific |
|00002e90| 64 65 73 74 69 6e 61 74 | 69 6f 6e 20 75 73 69 6e |destinat|ion usin|
|00002ea0| 67 20 55 44 50 2e 0a 20 | 2a 20 54 68 69 73 20 70 |g UDP.. |* This p|
|00002eb0| 72 6f 63 65 64 75 72 65 | 20 77 69 6c 6c 20 6e 65 |rocedure| will ne|
|00002ec0| 76 65 72 20 72 65 74 75 | 72 6e 20 2d 20 69 74 20 |ver retu|rn - it |
|00002ed0| 61 6c 77 61 79 73 20 65 | 78 69 74 73 20 77 69 74 |always e|xits wit|
|00002ee0| 68 20 61 6e 0a 20 2a 20 | 61 70 70 72 6f 70 72 69 |h an. * |appropri|
|00002ef0| 61 74 65 20 73 74 61 74 | 75 73 20 63 6f 64 65 2e |ate stat|us code.|
|00002f00| 0a 20 2a 2f 0a 0a 76 6f | 69 64 0a 75 64 70 5f 6d |. */..vo|id.udp_m|
|00002f10| 73 67 20 28 73 70 2c 20 | 72 29 0a 73 74 72 75 63 |sg (sp, |r).struc|
|00002f20| 74 20 73 6f 63 6b 61 64 | 64 72 5f 69 6e 20 2a 73 |t sockad|dr_in *s|
|00002f30| 70 3b 0a 69 6e 74 20 72 | 3b 0a 0a 7b 0a 09 69 6e |p;.int r|;..{..in|
|00002f40| 74 09 73 3b 0a 09 69 6e | 74 20 6f 6e 20 3d 20 31 |t.s;..in|t on = 1|
|00002f50| 3b 0a 09 73 74 72 75 63 | 74 20 73 6f 63 6b 61 64 |;..struc|t sockad|
|00002f60| 64 72 5f 69 6e 20 73 69 | 6e 3b 0a 09 66 64 5f 73 |dr_in si|n;..fd_s|
|00002f70| 65 74 20 72 65 61 64 79 | 3b 0a 09 73 74 72 75 63 |et ready|;..struc|
|00002f80| 74 20 74 69 6d 65 76 61 | 6c 20 74 6f 3b 0a 09 63 |t timeva|l to;..c|
|00002f90| 68 61 72 20 72 63 76 62 | 75 66 5b 32 35 36 5d 3b |har rcvb|uf[256];|
|00002fa0| 0a 09 69 6e 74 20 72 76 | 61 6c 3b 0a 0a 69 66 28 |..int rv|al;..if(|
|00002fb0| 64 65 62 75 67 29 20 70 | 72 69 6e 74 66 28 22 69 |debug) p|rintf("i|
|00002fc0| 6e 76 6f 6b 65 64 20 75 | 64 70 5f 6d 73 67 28 2e |nvoked u|dp_msg(.|
|00002fd0| 2e 2e 2c 25 64 29 5c 6e | 22 2c 20 72 29 3b 0a 0a |..,%d)\n|", r);..|
|00002fe0| 09 69 66 28 28 73 20 3d | 20 73 6f 63 6b 65 74 28 |.if((s =| socket(|
|00002ff0| 41 46 5f 49 4e 45 54 2c | 20 53 4f 43 4b 5f 44 47 |AF_INET,| SOCK_DG|
|00003000| 52 41 4d 2c 20 30 29 29 | 20 3c 20 30 29 20 7b 0a |RAM, 0))| < 0) {.|
|00003010| 09 09 66 70 72 69 6e 74 | 66 28 73 74 64 65 72 72 |..fprint|f(stderr|
|00003020| 2c 20 22 25 73 3a 20 75 | 6e 61 62 6c 65 20 74 6f |, "%s: u|nable to|
|00003030| 20 6f 70 65 6e 20 73 6f | 63 6b 65 74 2e 5c 6e 22 | open so|cket.\n"|
|00003040| 2c 20 70 72 6f 67 29 3b | 0a 09 09 70 65 72 72 6f |, prog);|...perro|
|00003050| 72 28 22 52 65 61 73 6f | 6e 22 29 3b 0a 09 09 65 |r("Reaso|n");...e|
|00003060| 78 69 74 28 33 29 3b 0a | 09 7d 0a 0a 09 73 69 6e |xit(3);.|.}...sin|
|00003070| 2e 73 69 6e 5f 66 61 6d | 69 6c 79 20 3d 20 41 46 |.sin_fam|ily = AF|
|00003080| 5f 49 4e 45 54 3b 0a 09 | 73 69 6e 2e 73 69 6e 5f |_INET;..|sin.sin_|
|00003090| 61 64 64 72 2e 73 5f 61 | 64 64 72 20 3d 20 68 74 |addr.s_a|ddr = ht|
|000030a0| 6f 6e 6c 28 49 4e 41 44 | 44 52 5f 41 4e 59 29 3b |onl(INAD|DR_ANY);|
|000030b0| 0a 09 73 69 6e 2e 73 69 | 6e 5f 70 6f 72 74 20 3d |..sin.si|n_port =|
|000030c0| 20 68 74 6f 6e 73 28 30 | 29 3b 0a 0a 09 69 66 28 | htons(0|);...if(|
|000030d0| 62 69 6e 64 28 73 2c 20 | 28 73 74 72 75 63 74 20 |bind(s, |(struct |
|000030e0| 73 6f 63 6b 61 64 64 72 | 20 2a 29 26 73 69 6e 2c |sockaddr| *)&sin,|
|000030f0| 20 73 69 7a 65 6f 66 20 | 73 69 6e 29 20 3c 20 30 | sizeof |sin) < 0|
|00003100| 29 20 7b 0a 09 09 66 70 | 72 69 6e 74 66 28 73 74 |) {...fp|rintf(st|
|00003110| 64 65 72 72 2c 20 22 25 | 73 3a 20 75 6e 61 62 6c |derr, "%|s: unabl|
|00003120| 65 20 74 6f 20 73 65 74 | 20 6c 6f 63 61 6c 20 73 |e to set| local s|
|00003130| 6f 63 6b 65 74 20 61 64 | 64 72 65 73 73 2e 5c 6e |ocket ad|dress.\n|
|00003140| 22 2c 20 70 72 6f 67 29 | 3b 0a 09 09 70 65 72 72 |", prog)|;...perr|
|00003150| 6f 72 28 22 52 65 61 73 | 6f 6e 22 29 3b 0a 09 09 |or("Reas|on");...|
|00003160| 65 78 69 74 28 33 29 3b | 0a 09 7d 0a 09 77 68 69 |exit(3);|..}..whi|
|00003170| 6c 65 28 72 2d 2d 29 20 | 7b 0a 09 09 69 66 28 76 |le(r--) |{...if(v|
|00003180| 65 72 62 6f 73 65 29 0a | 09 09 09 70 72 69 6e 74 |erbose).|...print|
|00003190| 66 28 22 73 65 6e 64 69 | 6e 67 20 6d 65 73 73 61 |f("sendi|ng messa|
|000031a0| 67 65 2e 2e 2e 5c 6e 22 | 29 3b 0a 09 09 69 66 28 |ge...\n"|);...if(|
|000031b0| 73 65 6e 64 74 6f 28 73 | 2c 20 6d 73 67 2c 20 6d |sendto(s|, msg, m|
|000031c0| 73 67 5f 6c 65 6e 2c 20 | 30 2c 20 28 73 74 72 75 |sg_len, |0, (stru|
|000031d0| 63 74 20 73 6f 63 6b 61 | 64 64 72 20 2a 29 73 70 |ct socka|ddr *)sp|
|000031e0| 2c 20 73 69 7a 65 6f 66 | 28 2a 73 70 29 29 20 3c |, sizeof|(*sp)) <|
|000031f0| 20 30 29 20 7b 0a 09 09 | 09 66 70 72 69 6e 74 66 | 0) {...|.fprintf|
|00003200| 28 73 74 64 65 72 72 2c | 20 22 25 73 3a 20 75 6e |(stderr,| "%s: un|
|00003210| 61 62 6c 65 20 74 6f 20 | 73 65 6e 64 20 6d 65 73 |able to |send mes|
|00003220| 73 61 67 65 2e 5c 6e 22 | 2c 20 70 72 6f 67 29 3b |sage.\n"|, prog);|
|00003230| 0a 09 09 09 70 65 72 72 | 6f 72 28 22 52 65 61 73 |....perr|or("Reas|
|00003240| 6f 6e 22 29 3b 0a 09 09 | 09 65 78 69 74 28 33 29 |on");...|.exit(3)|
|00003250| 3b 0a 09 09 7d 0a 09 09 | 69 66 28 72 29 20 7b 0a |;...}...|if(r) {.|
|00003260| 09 09 09 2f 2a 0a 09 09 | 09 20 2a 20 77 61 69 74 |.../*...|. * wait|
|00003270| 20 66 6f 72 20 72 65 70 | 6c 79 20 6f 72 20 74 69 | for rep|ly or ti|
|00003280| 6d 65 6f 75 74 0a 09 09 | 09 20 2a 2f 0a 09 09 09 |meout...|. */....|
|00003290| 74 6f 2e 74 76 5f 73 65 | 63 20 3d 20 32 3b 0a 09 |to.tv_se|c = 2;..|
|000032a0| 09 09 74 6f 2e 74 76 5f | 75 73 65 63 20 3d 20 30 |..to.tv_|usec = 0|
|000032b0| 3b 0a 09 09 09 46 44 5f | 5a 45 52 4f 28 26 72 65 |;....FD_|ZERO(&re|
|000032c0| 61 64 79 29 3b 0a 09 09 | 09 46 44 5f 53 45 54 28 |ady);...|.FD_SET(|
|000032d0| 73 2c 20 26 72 65 61 64 | 79 29 3b 0a 09 09 09 72 |s, &read|y);....r|
|000032e0| 76 61 6c 20 3d 20 73 65 | 6c 65 63 74 28 32 30 2c |val = se|lect(20,|
|000032f0| 20 26 72 65 61 64 79 2c | 20 28 66 64 5f 73 65 74 | &ready,| (fd_set|
|00003300| 20 2a 29 30 2c 20 28 66 | 64 5f 73 65 74 20 2a 29 | *)0, (f|d_set *)|
|00003310| 30 2c 20 26 74 6f 29 3b | 0a 09 09 09 69 66 28 72 |0, &to);|....if(r|
|00003320| 76 61 6c 20 3c 20 30 29 | 0a 09 09 09 20 09 66 70 |val < 0)|.... .fp|
|00003330| 72 69 6e 74 66 28 73 74 | 64 65 72 72 2c 20 22 25 |rintf(st|derr, "%|
|00003340| 73 3a 20 69 6e 74 65 72 | 72 75 70 74 5c 6e 22 2c |s: inter|rupt\n",|
|00003350| 20 70 72 6f 67 29 3b 0a | 09 09 09 69 66 28 72 76 | prog);.|...if(rv|
|00003360| 61 6c 20 3d 3d 20 31 29 | 20 7b 0a 09 09 09 2f 2a |al == 1)| {..../*|
|00003370| 20 58 58 58 20 74 6f 20 | 64 6f 20 20 3a 20 72 65 | XXX to |do  : re|
|00003380| 61 64 20 61 6e 64 20 64 | 65 63 6f 64 65 20 72 65 |ad and d|ecode re|
|00003390| 73 75 6c 74 20 2a 2f 0a | 09 09 09 09 69 66 28 76 |sult */.|....if(v|
|000033a0| 65 72 62 6f 73 65 29 0a | 09 09 09 09 09 70 72 69 |erbose).|.....pri|
|000033b0| 6e 74 66 28 22 25 73 3a | 20 6d 65 73 73 61 67 65 |ntf("%s:| message|
|000033c0| 20 72 65 63 65 69 70 74 | 20 61 63 6b 6e 6f 77 6c | receipt| acknowl|
|000033d0| 65 64 67 65 6d 65 6e 74 | 20 72 65 63 65 69 76 65 |edgement| receive|
|000033e0| 64 5c 6e 22 2c 20 70 72 | 6f 67 29 3b 0a 09 09 09 |d\n", pr|og);....|
|000033f0| 09 62 72 65 61 6b 3b 0a | 09 09 09 7d 0a 09 09 09 |.break;.|...}....|
|00003400| 2f 2a 0a 09 09 09 20 2a | 20 66 61 6c 6c 69 6e 67 |/*.... *| falling|
|00003410| 20 74 68 72 6f 75 67 68 | 2c 20 6d 75 73 74 20 62 | through|, must b|
|00003420| 65 20 69 6e 74 65 72 72 | 75 70 74 20 6f 72 20 74 |e interr|upt or t|
|00003430| 69 6d 65 6f 75 74 0a 09 | 09 09 20 2a 2f 0a 09 09 |imeout..|.. */...|
|00003440| 7d 0a 09 7d 0a 09 69 66 | 28 64 65 62 75 67 29 20 |}..}..if|(debug) |
|00003450| 70 72 69 6e 74 66 28 22 | 63 6c 6f 73 69 6e 67 20 |printf("|closing |
|00003460| 61 6e 64 20 65 78 69 74 | 69 6e 67 5c 6e 22 29 3b |and exit|ing\n");|
|00003470| 0a 09 63 6c 6f 73 65 28 | 73 29 3b 0a 09 65 78 69 |..close(|s);..exi|
|00003480| 74 28 30 29 3b 0a 09 2f | 2a 4e 4f 54 52 45 41 43 |t(0);../|*NOTREAC|
|00003490| 48 45 44 2a 2f 0a 7d 0a | 0a 2f 2a 0a 20 2a 20 66 |HED*/.}.|./*. * f|
|000034a0| 69 6e 64 5f 62 72 6f 61 | 64 63 61 73 74 5f 61 64 |ind_broa|dcast_ad|
|000034b0| 64 72 65 73 73 65 73 0a | 20 2a 0a 20 2a 20 54 68 |dresses.| *. * Th|
|000034c0| 69 73 20 70 72 6f 63 65 | 64 75 72 65 20 69 73 20 |is proce|dure is |
|000034d0| 75 73 65 64 20 62 79 20 | 62 72 6f 61 64 63 61 73 |used by |broadcas|
|000034e0| 74 5f 6d 73 67 20 74 6f | 20 64 65 74 65 72 6d 69 |t_msg to| determi|
|000034f0| 6e 65 20 61 6c 6c 20 6f | 66 20 74 68 65 0a 20 2a |ne all o|f the. *|
|00003500| 20 6e 65 74 77 6f 72 6b | 20 69 6e 74 65 72 66 61 | network| interfa|
|00003510| 63 65 73 20 63 6f 6e 66 | 69 67 72 65 64 20 6f 6e |ces conf|igred on|
|00003520| 20 74 68 65 20 6c 6f 63 | 61 6c 20 73 79 73 74 65 | the loc|al syste|
|00003530| 6d 2c 20 73 6f 20 74 68 | 61 74 20 74 68 65 0a 20 |m, so th|at the. |
|00003540| 2a 20 6d 65 73 73 61 67 | 65 20 63 61 6e 20 62 65 |* messag|e can be|
|00003550| 20 62 72 6f 61 64 63 61 | 73 74 20 6f 76 65 72 20 | broadca|st over |
|00003560| 65 61 63 68 20 6f 66 20 | 74 68 65 6d 2e 20 54 68 |each of |them. Th|
|00003570| 69 73 20 6c 6f 67 69 63 | 20 69 73 20 64 65 72 69 |is logic| is deri|
|00003580| 76 65 64 0a 20 2a 20 66 | 72 6f 6d 20 74 68 65 20 |ved. * f|rom the |
|00003590| 53 75 6e 4f 53 20 64 6f | 63 75 6d 65 6e 74 61 74 |SunOS do|cumentat|
|000035a0| 69 6f 6e 2c 20 61 6e 64 | 20 68 61 73 20 61 6c 73 |ion, and| has als|
|000035b0| 6f 20 62 65 65 6e 20 74 | 65 73 74 65 64 20 6f 6e |o been t|ested on|
|000035c0| 20 53 56 52 34 3a 0a 20 | 2a 20 61 6e 79 6f 6e 65 | SVR4:. |* anyone|
|000035d0| 20 70 6f 72 74 69 6e 67 | 20 74 68 69 73 20 70 72 | porting| this pr|
|000035e0| 6f 67 72 61 6d 20 74 6f | 20 73 69 67 6e 69 66 69 |ogram to| signifi|
|000035f0| 63 61 6e 74 6c 79 20 64 | 69 66 66 65 72 65 6e 74 |cantly d|ifferent|
|00003600| 20 73 79 73 74 65 6d 73 | 0a 20 2a 20 73 68 6f 75 | systems|. * shou|
|00003610| 6c 64 20 63 68 65 63 6b | 20 74 68 69 73 20 61 72 |ld check| this ar|
|00003620| 65 61 20 63 61 72 65 66 | 75 6c 6c 79 2e 0a 20 2a |ea caref|ully.. *|
|00003630| 0a 20 2a 20 54 68 65 20 | 70 72 6f 63 65 64 75 72 |. * The |procedur|
|00003640| 65 20 75 73 65 73 20 74 | 68 65 20 53 49 4f 43 47 |e uses t|he SIOCG|
|00003650| 49 46 43 4f 4e 46 20 69 | 6f 63 74 6c 20 74 6f 20 |IFCONF i|octl to |
|00003660| 72 65 74 72 69 65 76 65 | 20 74 68 65 0a 20 2a 20 |retrieve| the. * |
|00003670| 69 6e 74 65 72 66 61 63 | 65 73 2e 20 46 6f 72 20 |interfac|es. For |
|00003680| 65 61 63 68 20 6f 6e 65 | 2c 20 69 74 20 72 65 74 |each one|, it ret|
|00003690| 72 69 65 76 65 73 20 74 | 68 65 20 66 6c 61 67 73 |rieves t|he flags|
|000036a0| 20 76 69 61 20 53 49 4f | 43 47 49 46 46 4c 41 47 | via SIO|CGIFFLAG|
|000036b0| 53 2e 0a 20 2a 20 46 6f | 72 20 61 20 70 6f 69 6e |S.. * Fo|r a poin|
|000036c0| 74 2d 74 6f 2d 70 6f 69 | 6e 74 20 69 6e 74 65 72 |t-to-poi|nt inter|
|000036d0| 66 61 63 65 2c 20 74 68 | 65 20 70 65 65 72 20 61 |face, th|e peer a|
|000036e0| 64 64 72 65 73 73 20 69 | 73 20 66 65 74 63 68 65 |ddress i|s fetche|
|000036f0| 64 20 75 73 69 6e 67 0a | 20 2a 20 53 49 4f 43 47 |d using.| * SIOCG|
|00003700| 49 46 44 53 54 41 44 44 | 52 2e 20 46 6f 72 20 61 |IFDSTADD|R. For a|
|00003710| 20 62 72 6f 61 64 63 61 | 73 74 20 69 6e 74 65 66 | broadca|st intef|
|00003720| 61 63 65 2c 20 74 68 65 | 20 62 72 6f 61 64 63 61 |ace, the| broadca|
|00003730| 73 74 20 61 64 64 72 65 | 73 73 0a 20 2a 20 69 73 |st addre|ss. * is|
|00003740| 20 6f 62 74 61 69 6e 65 | 64 20 75 73 69 6e 67 20 | obtaine|d using |
|00003750| 53 49 4f 43 47 49 46 42 | 52 44 41 44 44 52 2e 20 |SIOCGIFB|RDADDR. |
|00003760| 54 68 65 20 61 64 64 72 | 65 73 73 65 73 20 61 72 |The addr|esses ar|
|00003770| 65 20 61 63 63 75 6d 75 | 6c 61 74 65 64 0a 20 2a |e accumu|lated. *|
|00003780| 20 69 6e 20 74 68 65 20 | 61 72 72 61 79 20 69 66 | in the |array if|
|00003790| 5f 61 2c 20 61 6e 64 20 | 69 66 5f 6e 20 68 6f 6c |_a, and |if_n hol|
|000037a0| 64 73 20 74 68 65 20 63 | 6f 75 6e 74 20 6f 66 20 |ds the c|ount of |
|000037b0| 61 64 64 72 65 73 73 65 | 73 20 66 6f 75 6e 64 2e |addresse|s found.|
|000037c0| 0a 20 2a 2f 0a 0a 23 64 | 65 66 69 6e 65 20 49 4e |. */..#d|efine IN|
|000037d0| 54 45 52 46 41 43 45 53 | 20 33 32 0a 69 6e 74 20 |TERFACES| 32.int |
|000037e0| 69 66 5f 6e 3b 0a 73 74 | 72 75 63 74 20 73 6f 63 |if_n;.st|ruct soc|
|000037f0| 6b 61 64 64 72 5f 69 6e | 20 69 66 5f 61 5b 49 4e |kaddr_in| if_a[IN|
|00003800| 54 45 52 46 41 43 45 53 | 5d 3b 0a 0a 76 6f 69 64 |TERFACES|];..void|
|00003810| 0a 66 69 6e 64 5f 62 72 | 6f 61 64 63 61 73 74 5f |.find_br|oadcast_|
|00003820| 61 64 64 72 65 73 73 65 | 73 28 73 29 0a 69 6e 74 |addresse|s(s).int|
|00003830| 20 73 3b 0a 7b 0a 09 73 | 74 72 75 63 74 20 69 66 | s;.{..s|truct if|
|00003840| 63 6f 6e 66 20 69 66 63 | 3b 0a 09 73 74 72 75 63 |conf ifc|;..struc|
|00003850| 74 20 69 66 72 65 71 20 | 2a 69 66 72 3b 0a 09 63 |t ifreq |*ifr;..c|
|00003860| 68 61 72 20 62 75 66 5b | 34 30 39 36 5d 3b 0a 09 |har buf[|4096];..|
|00003870| 69 6e 74 20 6e 3b 0a 0a | 09 69 66 5f 6e 20 3d 20 |int n;..|.if_n = |
|00003880| 30 3b 0a 0a 09 69 66 63 | 2e 69 66 63 5f 6c 65 6e |0;...ifc|.ifc_len|
|00003890| 20 3d 20 73 69 7a 65 6f | 66 20 62 75 66 3b 0a 09 | = sizeo|f buf;..|
|000038a0| 69 66 63 2e 69 66 63 5f | 62 75 66 20 3d 20 62 75 |ifc.ifc_|buf = bu|
|000038b0| 66 3b 0a 0a 09 69 66 28 | 69 6f 63 74 6c 28 73 2c |f;...if(|ioctl(s,|
|000038c0| 20 53 49 4f 43 47 49 46 | 43 4f 4e 46 2c 20 28 63 | SIOCGIF|CONF, (c|
|000038d0| 68 61 72 20 2a 29 26 69 | 66 63 29 20 3c 20 30 29 |har *)&i|fc) < 0)|
|000038e0| 20 7b 0a 09 09 66 70 72 | 69 6e 74 66 28 73 74 64 | {...fpr|intf(std|
|000038f0| 65 72 72 2c 20 22 25 73 | 3a 20 53 49 4f 43 47 49 |err, "%s|: SIOCGI|
|00003900| 46 43 4f 4e 46 20 66 61 | 69 6c 65 64 2e 5c 6e 22 |FCONF fa|iled.\n"|
|00003910| 2c 20 70 72 6f 67 29 3b | 0a 09 09 70 65 72 72 6f |, prog);|...perro|
|00003920| 72 28 22 52 65 61 73 6f | 6e 22 29 3b 0a 09 09 65 |r("Reaso|n");...e|
|00003930| 78 69 74 28 33 29 3b 0a | 09 7d 0a 09 69 66 72 20 |xit(3);.|.}..ifr |
|00003940| 3d 20 69 66 63 2e 69 66 | 63 5f 72 65 71 3b 0a 09 |= ifc.if|c_req;..|
|00003950| 6e 20 3d 20 69 66 63 2e | 69 66 63 5f 6c 65 6e 2f |n = ifc.|ifc_len/|
|00003960| 73 69 7a 65 6f 66 28 73 | 74 72 75 63 74 20 69 66 |sizeof(s|truct if|
|00003970| 72 65 71 29 3b 0a 09 69 | 66 28 64 65 62 75 67 29 |req);..i|f(debug)|
|00003980| 0a 09 09 70 72 69 6e 74 | 66 28 22 63 68 65 63 6b |...print|f("check|
|00003990| 69 6e 67 20 25 64 20 69 | 6e 74 65 72 66 61 63 65 |ing %d i|nterface|
|000039a0| 73 20 72 65 74 75 72 6e | 65 64 20 62 79 20 53 49 |s return|ed by SI|
|000039b0| 4f 43 47 49 46 43 4f 4e | 46 2e 2e 2e 5c 6e 22 2c |OCGIFCON|F...\n",|
|000039c0| 0a 09 09 09 6e 29 3b 0a | 0a 09 66 6f 72 20 28 3b |....n);.|..for (;|
|000039d0| 20 2d 2d 6e 20 3e 3d 20 | 30 3b 20 69 66 72 2b 2b | --n >= |0; ifr++|
|000039e0| 29 20 7b 0a 09 09 69 66 | 28 69 66 72 2d 3e 69 66 |) {...if|(ifr->if|
|000039f0| 72 5f 61 64 64 72 2e 73 | 61 5f 66 61 6d 69 6c 79 |r_addr.s|a_family|
|00003a00| 20 21 3d 20 41 46 5f 49 | 4e 45 54 29 0a 09 09 09 | != AF_I|NET)....|
|00003a10| 63 6f 6e 74 69 6e 75 65 | 3b 0a 09 09 69 66 28 69 |continue|;...if(i|
|00003a20| 6f 63 74 6c 28 73 2c 20 | 53 49 4f 43 47 49 46 46 |octl(s, |SIOCGIFF|
|00003a30| 4c 41 47 53 2c 20 28 63 | 68 61 72 20 2a 29 69 66 |LAGS, (c|har *)if|
|00003a40| 72 29 20 3c 20 30 29 7b | 0a 09 09 09 70 65 72 72 |r) < 0){|....perr|
|00003a50| 6f 72 28 22 53 49 4f 43 | 47 49 46 46 4c 41 47 53 |or("SIOC|GIFFLAGS|
|00003a60| 22 29 3b 0a 09 09 09 63 | 6f 6e 74 69 6e 75 65 3b |");....c|ontinue;|
|00003a70| 0a 09 09 7d 0a 09 09 69 | 66 28 28 69 66 72 2d 3e |...}...i|f((ifr->|
|00003a80| 69 66 72 5f 66 6c 61 67 | 73 20 26 20 49 46 46 5f |ifr_flag|s & IFF_|
|00003a90| 55 50 29 20 3d 3d 20 30 | 20 7c 7c 0a 09 09 20 20 |UP) == 0| ||...  |
|00003aa0| 20 28 69 66 72 2d 3e 69 | 66 72 5f 66 6c 61 67 73 | (ifr->i|fr_flags|
|00003ab0| 20 26 20 49 46 46 5f 4c | 4f 4f 50 42 41 43 4b 29 | & IFF_L|OOPBACK)|
|00003ac0| 20 7c 7c 0a 09 09 20 20 | 20 28 69 66 72 2d 3e 69 | ||...  | (ifr->i|
|00003ad0| 66 72 5f 66 6c 61 67 73 | 20 26 20 28 49 46 46 5f |fr_flags| & (IFF_|
|00003ae0| 42 52 4f 41 44 43 41 53 | 54 7c 49 46 46 5f 50 4f |BROADCAS|T|IFF_PO|
|00003af0| 49 4e 54 4f 50 4f 49 4e | 54 29 29 20 3d 3d 20 30 |INTOPOIN|T)) == 0|
|00003b00| 29 0a 09 09 09 63 6f 6e | 74 69 6e 75 65 3b 0a 09 |)....con|tinue;..|
|00003b10| 09 69 66 28 69 66 72 2d | 3e 69 66 72 5f 66 6c 61 |.if(ifr-|>ifr_fla|
|00003b20| 67 73 20 26 20 49 46 46 | 5f 50 4f 49 4e 54 4f 50 |gs & IFF|_POINTOP|
|00003b30| 4f 49 4e 54 29 20 7b 0a | 09 09 09 69 66 28 69 6f |OINT) {.|...if(io|
|00003b40| 63 74 6c 28 73 2c 20 53 | 49 4f 43 47 49 46 44 53 |ctl(s, S|IOCGIFDS|
|00003b50| 54 41 44 44 52 2c 20 28 | 63 68 61 72 20 2a 29 69 |TADDR, (|char *)i|
|00003b60| 66 72 29 20 3c 20 30 29 | 20 7b 0a 09 09 09 09 70 |fr) < 0)| {.....p|
|00003b70| 65 72 72 6f 72 28 22 53 | 49 4f 43 47 49 46 44 53 |error("S|IOCGIFDS|
|00003b80| 54 41 44 44 52 22 29 3b | 0a 09 09 09 09 63 6f 6e |TADDR");|.....con|
|00003b90| 74 69 6e 75 65 3b 0a 09 | 09 09 7d 0a 09 09 09 62 |tinue;..|..}....b|
|00003ba0| 63 6f 70 79 28 28 63 68 | 61 72 20 2a 29 26 69 66 |copy((ch|ar *)&if|
|00003bb0| 72 2d 3e 69 66 72 5f 64 | 73 74 61 64 64 72 2c 20 |r->ifr_d|staddr, |
|00003bc0| 28 63 68 61 72 20 2a 29 | 26 69 66 5f 61 5b 69 66 |(char *)|&if_a[if|
|00003bd0| 5f 6e 2b 2b 5d 2c 0a 09 | 09 09 09 73 69 7a 65 6f |_n++],..|...sizeo|
|00003be0| 66 20 69 66 72 2d 3e 69 | 66 72 5f 64 73 74 61 64 |f ifr->i|fr_dstad|
|00003bf0| 64 72 29 3b 0a 09 09 7d | 20 65 6c 73 65 20 69 66 |dr);...}| else if|
|00003c00| 28 69 66 72 2d 3e 69 66 | 72 5f 66 6c 61 67 73 20 |(ifr->if|r_flags |
|00003c10| 26 20 49 46 46 5f 42 52 | 4f 41 44 43 41 53 54 29 |& IFF_BR|OADCAST)|
|00003c20| 20 7b 0a 09 09 09 69 66 | 28 69 6f 63 74 6c 28 73 | {....if|(ioctl(s|
|00003c30| 2c 20 53 49 4f 43 47 49 | 46 42 52 44 41 44 44 52 |, SIOCGI|FBRDADDR|
|00003c40| 2c 20 28 63 68 61 72 20 | 2a 29 69 66 72 29 20 3c |, (char |*)ifr) <|
|00003c50| 20 30 29 20 7b 0a 09 09 | 09 09 70 65 72 72 6f 72 | 0) {...|..perror|
|00003c60| 28 22 53 49 4f 43 47 49 | 46 42 52 44 41 44 44 52 |("SIOCGI|FBRDADDR|
|00003c70| 22 29 3b 0a 09 09 09 09 | 63 6f 6e 74 69 6e 75 65 |");.....|continue|
|00003c80| 3b 0a 09 09 09 7d 0a 09 | 09 09 62 63 6f 70 79 28 |;....}..|..bcopy(|
|00003c90| 28 63 68 61 72 20 2a 29 | 26 69 66 72 2d 3e 69 66 |(char *)|&ifr->if|
|00003ca0| 72 5f 62 72 6f 61 64 61 | 64 64 72 2c 20 28 63 68 |r_broada|ddr, (ch|
|00003cb0| 61 72 20 2a 29 26 69 66 | 5f 61 5b 69 66 5f 6e 2b |ar *)&if|_a[if_n+|
|00003cc0| 2b 5d 2c 0a 09 09 09 09 | 73 69 7a 65 6f 66 20 69 |+],.....|sizeof i|
|00003cd0| 66 72 2d 3e 69 66 72 5f | 62 72 6f 61 64 61 64 64 |fr->ifr_|broadadd|
|00003ce0| 72 29 3b 0a 09 09 7d 0a | 09 7d 0a 09 69 66 28 64 |r);...}.|.}..if(d|
|00003cf0| 65 62 75 67 29 0a 09 09 | 70 72 69 6e 74 66 28 22 |ebug)...|printf("|
|00003d00| 66 6f 75 6e 64 20 25 64 | 20 69 6e 74 65 72 66 61 |found %d| interfa|
|00003d10| 63 65 73 5c 6e 22 2c 20 | 69 66 5f 6e 29 3b 09 0a |ces\n", |if_n);..|
|00003d20| 09 69 66 28 69 66 5f 6e | 20 3d 3d 20 30 29 20 7b |.if(if_n| == 0) {|
|00003d30| 0a 09 09 66 70 72 69 6e | 74 66 28 73 74 64 65 72 |...fprin|tf(stder|
|00003d40| 72 2c 20 22 25 73 3a 20 | 6e 6f 20 61 70 70 6c 69 |r, "%s: |no appli|
|00003d50| 63 61 62 6c 65 20 6e 65 | 74 77 6f 72 6b 20 69 6e |cable ne|twork in|
|00003d60| 74 65 72 66 61 63 65 73 | 5c 6e 22 2c 20 70 72 6f |terfaces|\n", pro|
|00003d70| 67 29 3b 0a 09 09 65 78 | 69 74 28 33 29 3b 0a 09 |g);...ex|it(3);..|
|00003d80| 09 2f 2a 4e 4f 54 52 45 | 41 43 48 45 44 2a 2f 0a |./*NOTRE|ACHED*/.|
|00003d90| 09 7d 20 0a 7d 0a 0a 2f | 2a 0a 20 2a 20 62 72 6f |.} .}../|*. * bro|
|00003da0| 61 64 63 61 73 74 5f 6d | 73 67 28 73 70 2c 20 72 |adcast_m|sg(sp, r|
|00003db0| 29 0a 20 2a 20 20 20 20 | 20 20 73 70 20 70 6f 69 |). *    |  sp poi|
|00003dc0| 6e 74 73 20 61 74 20 61 | 20 73 6f 63 6b 61 64 64 |nts at a| sockadd|
|00003dd0| 72 5f 69 6e 20 77 68 69 | 63 68 20 63 6f 6e 74 61 |r_in whi|ch conta|
|00003de0| 69 6e 73 20 74 68 65 0a | 20 2a 20 20 20 20 20 20 |ins the.| *      |
|00003df0| 70 6f 72 74 20 74 6f 20 | 62 65 20 75 73 65 64 2e |port to |be used.|
|00003e00| 0a 20 2a 20 20 20 20 20 | 20 72 20 69 73 20 74 68 |. *     | r is th|
|00003e10| 65 20 72 65 74 72 79 20 | 63 6f 75 6e 74 20 74 6f |e retry |count to|
|00003e20| 20 62 65 20 75 73 65 64 | 2e 0a 20 2a 0a 20 2a 20 | be used|.. *. * |
|00003e30| 42 72 6f 61 64 63 61 73 | 74 20 74 68 65 20 6d 65 |Broadcas|t the me|
|00003e40| 73 73 61 67 65 20 27 72 | 27 20 74 69 6d 65 73 20 |ssage 'r|' times |
|00003e50| 6f 76 65 72 20 61 6c 6c | 20 6e 65 74 77 6f 72 6b |over all| network|
|00003e60| 20 69 6e 74 65 72 66 61 | 63 65 73 2e 0a 20 2a 20 | interfa|ces.. * |
|00003e70| 54 68 69 73 20 70 72 6f | 63 65 64 75 72 65 20 6e |This pro|cedure n|
|00003e80| 65 76 65 72 20 72 65 74 | 75 72 6e 73 3a 20 69 74 |ever ret|urns: it|
|00003e90| 20 77 69 6c 6c 20 65 76 | 65 6e 74 75 61 6c 6c 79 | will ev|entually|
|00003ea0| 20 65 78 69 74 20 77 69 | 74 68 20 61 20 73 75 69 | exit wi|th a sui|
|00003eb0| 74 61 62 6c 65 0a 20 2a | 20 73 74 61 74 75 73 20 |table. *| status |
|00003ec0| 63 6f 64 65 2e 20 42 72 | 6f 61 64 63 61 73 74 73 |code. Br|oadcasts|
|00003ed0| 20 61 72 65 20 73 65 6e | 74 20 61 74 20 69 6e 74 | are sen|t at int|
|00003ee0| 65 72 76 61 6c 73 20 6f | 66 20 32 20 73 65 63 6f |ervals o|f 2 seco|
|00003ef0| 6e 64 73 2e 0a 20 2a 20 | 28 49 74 20 6d 69 67 68 |nds.. * |(It migh|
|00003f00| 74 20 62 65 20 61 64 76 | 69 73 61 62 6c 65 20 74 |t be adv|isable t|
|00003f10| 6f 20 6d 61 6b 65 20 74 | 68 69 73 20 70 61 72 61 |o make t|his para|
|00003f20| 6d 65 74 65 72 20 61 64 | 6a 75 73 74 61 62 6c 65 |meter ad|justable|
|00003f30| 2e 29 0a 20 2a 0a 20 2a | 20 4e 6f 72 6d 61 6c 6c |.). *. *| Normall|
|00003f40| 79 20 61 20 62 72 6f 61 | 64 63 61 73 74 20 6d 65 |y a broa|dcast me|
|00003f50| 73 73 61 67 65 20 77 69 | 6c 6c 20 6e 6f 74 20 65 |ssage wi|ll not e|
|00003f60| 6c 69 63 69 74 20 61 20 | 72 65 70 6c 79 2e 20 48 |licit a |reply. H|
|00003f70| 6f 77 65 76 65 72 0a 20 | 2a 20 69 66 20 69 74 20 |owever. |* if it |
|00003f80| 64 6f 65 73 2c 20 77 65 | 20 61 73 73 75 6d 65 20 |does, we| assume |
|00003f90| 74 68 61 74 20 77 65 27 | 76 65 20 72 65 61 63 68 |that we'|ve reach|
|00003fa0| 65 64 20 74 68 65 20 72 | 69 67 68 74 20 64 65 73 |ed the r|ight des|
|00003fb0| 74 69 6e 61 74 69 6f 6e | 0a 20 2a 20 61 6e 64 20 |tination|. * and |
|00003fc0| 77 65 20 71 75 69 74 20 | 77 69 74 68 6f 75 74 20 |we quit |without |
|00003fd0| 66 75 72 74 68 65 72 20 | 61 64 6f 2e 0a 20 2a 2f |further |ado.. */|
|00003fe0| 0a 0a 76 6f 69 64 0a 62 | 72 6f 61 64 63 61 73 74 |..void.b|roadcast|
|00003ff0| 5f 6d 73 67 20 28 73 70 | 2c 20 72 29 0a 73 74 72 |_msg (sp|, r).str|
|00004000| 75 63 74 20 73 6f 63 6b | 61 64 64 72 5f 69 6e 20 |uct sock|addr_in |
|00004010| 2a 73 70 3b 0a 69 6e 74 | 20 72 3b 0a 0a 7b 0a 09 |*sp;.int| r;..{..|
|00004020| 69 6e 74 09 73 3b 0a 09 | 69 6e 74 20 6f 6e 20 3d |int.s;..|int on =|
|00004030| 20 31 3b 0a 09 73 74 72 | 75 63 74 20 73 6f 63 6b | 1;..str|uct sock|
|00004040| 61 64 64 72 5f 69 6e 20 | 73 69 6e 3b 0a 09 66 64 |addr_in |sin;..fd|
|00004050| 5f 73 65 74 20 72 65 61 | 64 79 3b 0a 09 73 74 72 |_set rea|dy;..str|
|00004060| 75 63 74 20 74 69 6d 65 | 76 61 6c 20 74 6f 3b 0a |uct time|val to;.|
|00004070| 09 63 68 61 72 20 72 63 | 76 62 75 66 5b 32 35 36 |.char rc|vbuf[256|
|00004080| 5d 3b 0a 09 69 6e 74 20 | 72 76 61 6c 3b 0a 09 69 |];..int |rval;..i|
|00004090| 6e 74 20 69 3b 0a 0a 69 | 66 28 64 65 62 75 67 29 |nt i;..i|f(debug)|
|000040a0| 20 70 72 69 6e 74 66 28 | 22 69 6e 76 6f 6b 65 64 | printf(|"invoked|
|000040b0| 20 62 72 6f 61 64 63 61 | 73 74 5f 6d 73 67 28 2e | broadca|st_msg(.|
|000040c0| 2e 2e 2c 25 64 29 5c 6e | 22 2c 20 72 29 3b 0a 0a |..,%d)\n|", r);..|
|000040d0| 09 69 66 28 28 73 20 3d | 20 73 6f 63 6b 65 74 28 |.if((s =| socket(|
|000040e0| 41 46 5f 49 4e 45 54 2c | 20 53 4f 43 4b 5f 44 47 |AF_INET,| SOCK_DG|
|000040f0| 52 41 4d 2c 20 30 29 29 | 20 3c 20 30 29 20 7b 0a |RAM, 0))| < 0) {.|
|00004100| 09 09 66 70 72 69 6e 74 | 66 28 73 74 64 65 72 72 |..fprint|f(stderr|
|00004110| 2c 20 22 25 73 3a 20 75 | 6e 61 62 6c 65 20 74 6f |, "%s: u|nable to|
|00004120| 20 6f 70 65 6e 20 73 6f | 63 6b 65 74 2e 5c 6e 22 | open so|cket.\n"|
|00004130| 2c 20 70 72 6f 67 29 3b | 0a 09 09 70 65 72 72 6f |, prog);|...perro|
|00004140| 72 28 22 52 65 61 73 6f | 6e 22 29 3b 0a 09 09 65 |r("Reaso|n");...e|
|00004150| 78 69 74 28 33 29 3b 0a | 09 7d 0a 0a 09 69 20 3d |xit(3);.|.}...i =|
|00004160| 20 31 3b 0a 09 69 66 28 | 73 65 74 73 6f 63 6b 6f | 1;..if(|setsocko|
|00004170| 70 74 28 73 2c 20 53 4f | 4c 5f 53 4f 43 4b 45 54 |pt(s, SO|L_SOCKET|
|00004180| 2c 20 53 4f 5f 42 52 4f | 41 44 43 41 53 54 2c 20 |, SO_BRO|ADCAST, |
|00004190| 28 63 68 61 72 20 2a 29 | 26 69 2c 20 73 69 7a 65 |(char *)|&i, size|
|000041a0| 6f 66 20 69 29 20 3c 20 | 30 29 20 7b 0a 09 09 66 |of i) < |0) {...f|
|000041b0| 70 72 69 6e 74 66 28 73 | 74 64 65 72 72 2c 20 22 |printf(s|tderr, "|
|000041c0| 25 73 3a 20 75 6e 61 62 | 6c 65 20 74 6f 20 63 6f |%s: unab|le to co|
|000041d0| 6e 66 69 67 75 72 65 20 | 73 6f 63 6b 65 74 20 66 |nfigure |socket f|
|000041e0| 6f 72 20 62 72 6f 61 64 | 63 61 73 74 2e 5c 6e 22 |or broad|cast.\n"|
|000041f0| 2c 20 70 72 6f 67 29 3b | 0a 09 09 70 65 72 72 6f |, prog);|...perro|
|00004200| 72 28 22 52 65 61 73 6f | 6e 22 29 3b 0a 09 09 65 |r("Reaso|n");...e|
|00004210| 78 69 74 28 33 29 3b 0a | 09 7d 0a 0a 09 66 69 6e |xit(3);.|.}...fin|
|00004220| 64 5f 62 72 6f 61 64 63 | 61 73 74 5f 61 64 64 72 |d_broadc|ast_addr|
|00004230| 65 73 73 65 73 28 73 29 | 3b 0a 0a 09 73 69 6e 2e |esses(s)|;...sin.|
|00004240| 73 69 6e 5f 66 61 6d 69 | 6c 79 20 3d 20 41 46 5f |sin_fami|ly = AF_|
|00004250| 49 4e 45 54 3b 0a 09 73 | 69 6e 2e 73 69 6e 5f 61 |INET;..s|in.sin_a|
|00004260| 64 64 72 2e 73 5f 61 64 | 64 72 20 3d 20 68 74 6f |ddr.s_ad|dr = hto|
|00004270| 6e 6c 28 49 4e 41 44 44 | 52 5f 41 4e 59 29 3b 0a |nl(INADD|R_ANY);.|
|00004280| 09 73 69 6e 2e 73 69 6e | 5f 70 6f 72 74 20 3d 20 |.sin.sin|_port = |
|00004290| 68 74 6f 6e 73 28 30 29 | 3b 0a 0a 09 69 66 28 62 |htons(0)|;...if(b|
|000042a0| 69 6e 64 28 73 2c 20 28 | 73 74 72 75 63 74 20 73 |ind(s, (|struct s|
|000042b0| 6f 63 6b 61 64 64 72 20 | 2a 29 26 73 69 6e 2c 20 |ockaddr |*)&sin, |
|000042c0| 73 69 7a 65 6f 66 20 73 | 69 6e 29 20 3c 20 30 29 |sizeof s|in) < 0)|
|000042d0| 20 7b 0a 09 09 66 70 72 | 69 6e 74 66 28 73 74 64 | {...fpr|intf(std|
|000042e0| 65 72 72 2c 20 22 25 73 | 3a 20 75 6e 61 62 6c 65 |err, "%s|: unable|
|000042f0| 20 74 6f 20 73 65 74 20 | 6c 6f 63 61 6c 20 73 6f | to set |local so|
|00004300| 63 6b 65 74 20 61 64 64 | 72 65 73 73 2e 5c 6e 22 |cket add|ress.\n"|
|00004310| 2c 20 70 72 6f 67 29 3b | 0a 09 09 70 65 72 72 6f |, prog);|...perro|
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|000046d0| 0a 09 2f 2a 4e 4f 54 52 | 45 41 43 48 45 44 2a 2f |../*NOTR|EACHED*/|
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|00005100| 6e 64 65 66 20 53 56 52 | 34 0a 23 69 6e 63 6c 75 |ndef SVR|4.#inclu|
|00005110| 64 65 20 3c 73 79 73 2f | 74 74 79 63 6f 6d 2e 68 |de <sys/|ttycom.h|
|00005120| 3e 0a 23 65 6e 64 69 66 | 0a 23 69 6e 63 6c 75 64 |>.#endif|.#includ|
|00005130| 65 20 3c 73 79 73 2f 77 | 61 69 74 2e 68 3e 0a 23 |e <sys/w|ait.h>.#|
|00005140| 69 6e 63 6c 75 64 65 20 | 3c 73 79 73 2f 73 6f 63 |include |<sys/soc|
|00005150| 6b 69 6f 2e 68 3e 0a 23 | 69 6e 63 6c 75 64 65 20 |kio.h>.#|include |
|00005160| 3c 6e 65 74 69 6e 65 74 | 2f 69 6e 2e 68 3e 0a 23 |<netinet|/in.h>.#|
|00005170| 69 6e 63 6c 75 64 65 20 | 3c 6e 65 74 2f 69 66 2e |include |<net/if.|
|00005180| 68 3e 0a 23 69 6e 63 6c | 75 64 65 20 3c 61 72 70 |h>.#incl|ude <arp|
|00005190| 61 2f 69 6e 65 74 2e 68 | 3e 0a 23 69 6e 63 6c 75 |a/inet.h|>.#inclu|
|000051a0| 64 65 20 3c 6e 65 74 64 | 62 2e 68 3e 0a 23 69 6e |de <netd|b.h>.#in|
|000051b0| 63 6c 75 64 65 20 3c 73 | 74 64 69 6f 2e 68 3e 0a |clude <s|tdio.h>.|
|000051c0| 23 69 6e 63 6c 75 64 65 | 20 3c 66 63 6e 74 6c 2e |#include| <fcntl.|
|000051d0| 68 3e 0a 23 69 6e 63 6c | 75 64 65 20 3c 73 74 72 |h>.#incl|ude <str|
|000051e0| 69 6e 67 2e 68 3e 0a 23 | 69 6e 63 6c 75 64 65 20 |ing.h>.#|include |
|000051f0| 3c 73 69 67 6e 61 6c 2e | 68 3e 0a 23 69 6e 63 6c |<signal.|h>.#incl|
|00005200| 75 64 65 20 3c 63 74 79 | 70 65 2e 68 3e 0a 23 69 |ude <cty|pe.h>.#i|
|00005210| 6e 63 6c 75 64 65 20 3c | 74 69 6d 65 2e 68 3e 0a |nclude <|time.h>.|
|00005220| 23 69 6e 63 6c 75 64 65 | 20 3c 6d 65 6d 6f 72 79 |#include| <memory|
|00005230| 2e 68 3e 0a 0a 63 68 61 | 72 20 2a 70 72 6f 67 3b |.h>..cha|r *prog;|
|00005240| 0a 69 6e 74 20 64 65 62 | 75 67 20 3d 20 30 3b 0a |.int deb|ug = 0;.|
|00005250| 69 6e 74 20 76 65 72 62 | 6f 73 65 20 3d 20 30 3b |int verb|ose = 0;|
|00005260| 0a 69 6e 74 20 75 73 65 | 5f 63 6f 6e 73 6f 6c 65 |.int use|_console|
|00005270| 20 3d 20 30 3b 09 2f 2a | 20 58 58 58 20 63 75 72 | = 0;./*| XXX cur|
|00005280| 72 65 6e 74 6c 79 20 75 | 6e 75 73 65 64 20 2a 2f |rently u|nused */|
|00005290| 0a 63 68 61 72 20 2a 65 | 6d 70 74 79 5f 61 72 67 |.char *e|mpty_arg|
|000052a0| 20 3d 20 22 22 3b 0a 0a | 63 68 61 72 20 2a 20 72 | = "";..|char * r|
|000052b0| 65 63 69 70 69 65 6e 74 | 3b 0a 63 68 61 72 20 2a |ecipient|;.char *|
|000052c0| 20 72 65 63 69 70 5f 74 | 65 72 6d 3b 0a 63 68 61 | recip_t|erm;.cha|
|000052d0| 72 20 2a 20 73 65 6e 64 | 65 72 3b 0a 63 68 61 72 |r * send|er;.char|
|000052e0| 20 2a 20 73 65 6e 64 65 | 72 5f 74 65 72 6d 3b 0a | * sende|r_term;.|
|000052f0| 63 68 61 72 20 2a 20 6d | 73 67 5f 74 65 78 74 3b |char * m|sg_text;|
|00005300| 0a 63 68 61 72 20 2a 20 | 63 6f 6f 6b 69 65 3b 0a |.char * |cookie;.|
|00005310| 63 68 61 72 20 2a 20 73 | 69 67 6e 61 74 75 72 65 |char * s|ignature|
|00005320| 3b 0a 0a 63 68 61 72 20 | 63 6f 6e 73 6f 6c 65 5b |;..char |console[|
|00005330| 5d 20 3d 20 22 2f 64 65 | 76 2f 63 6f 6e 73 6f 6c |] = "/de|v/consol|
|00005340| 65 22 3b 0a 2f 2a 20 75 | 74 6d 70 20 67 6c 6f 62 |e";./* u|tmp glob|
|00005350| 61 6c 73 20 2a 2f 0a 73 | 74 72 75 63 74 20 75 74 |als */.s|truct ut|
|00005360| 6d 70 20 75 74 6d 70 3b | 0a 46 49 4c 45 20 2a 75 |mp utmp;|.FILE *u|
|00005370| 74 6d 70 5f 66 69 6c 65 | 3b 09 2f 2a 20 73 74 72 |tmp_file|;./* str|
|00005380| 65 61 6d 20 66 6f 72 20 | 75 74 6d 70 2c 20 61 6c |eam for |utmp, al|
|00005390| 73 6f 20 6e 6f 6e 2d 30 | 20 69 6e 64 69 63 61 74 |so non-0| indicat|
|000053a0| 65 73 20 76 61 6c 69 64 | 20 65 6e 74 72 79 20 2a |es valid| entry *|
|000053b0| 2f 0a 0a 0a 2f 2a 0a 20 | 2a 20 74 79 70 65 73 20 |/.../*. |* types |
|000053c0| 66 6f 72 20 61 6c 6c 20 | 70 72 6f 63 65 64 75 72 |for all |procedur|
|000053d0| 65 73 0a 20 2a 2f 0a 76 | 6f 69 64 20 75 73 61 67 |es. */.v|oid usag|
|000053e0| 65 28 29 3b 0a 76 6f 69 | 64 20 68 61 6e 64 6c 65 |e();.voi|d handle|
|000053f0| 5f 75 64 70 28 29 3b 0a | 76 6f 69 64 20 68 61 6e |_udp();.|void han|
|00005400| 64 6c 65 5f 74 63 70 28 | 29 3b 0a 69 6e 74 20 6d |dle_tcp(|);.int m|
|00005410| 61 69 6e 28 29 3b 0a 23 | 69 66 64 65 66 20 53 56 |ain();.#|ifdef SV|
|00005420| 52 34 0a 76 6f 69 64 20 | 72 65 61 70 65 72 28 29 |R4.void |reaper()|
|00005430| 3b 0a 23 65 6c 73 65 0a | 69 6e 74 20 72 65 61 70 |;.#else.|int reap|
|00005440| 65 72 28 29 3b 0a 23 65 | 6e 64 69 66 0a 76 6f 69 |er();.#e|ndif.voi|
|00005450| 64 20 75 64 70 5f 61 63 | 6b 28 29 3b 0a 76 6f 69 |d udp_ac|k();.voi|
|00005460| 64 20 61 63 6b 28 29 3b | 0a 76 6f 69 64 20 6e 61 |d ack();|.void na|
|00005470| 6b 28 29 3b 0a 63 68 61 | 72 20 2a 64 65 6c 69 76 |k();.cha|r *deliv|
|00005480| 65 72 28 29 3b 0a 69 6e | 74 20 72 69 70 5f 61 70 |er();.in|t rip_ap|
|00005490| 61 72 74 5f 6d 65 73 73 | 61 67 65 28 29 3b 0a 69 |art_mess|age();.i|
|000054a0| 6e 74 20 63 68 65 63 6b | 5f 63 61 63 68 65 28 29 |nt check|_cache()|
|000054b0| 3b 0a 76 6f 69 64 20 66 | 69 6c 74 65 72 28 29 3b |;.void f|ilter();|
|000054c0| 0a 63 68 61 72 20 2a 64 | 6f 5f 63 6d 64 28 29 3b |.char *d|o_cmd();|
|000054d0| 0a 63 68 61 72 20 2a 20 | 66 69 72 73 74 5f 75 74 |.char * |first_ut|
|000054e0| 6d 70 5f 65 6e 74 72 79 | 28 29 3b 0a 76 6f 69 64 |mp_entry|();.void|
|000054f0| 20 6e 65 78 74 5f 75 74 | 6d 70 5f 65 6e 74 72 79 | next_ut|mp_entry|
|00005500| 28 29 3b 0a 63 68 61 72 | 20 2a 73 65 6e 64 5f 74 |();.char| *send_t|
|00005510| 6f 5f 74 65 72 6d 28 29 | 3b 0a 0a 0a 76 6f 69 64 |o_term()|;...void|
|00005520| 0a 75 73 61 67 65 28 29 | 0a 7b 0a 09 66 70 72 69 |.usage()|.{..fpri|
|00005530| 6e 74 66 28 73 74 64 65 | 72 72 2c 20 22 75 73 61 |ntf(stde|rr, "usa|
|00005540| 67 65 3a 20 25 73 20 5b | 2d 64 5d 5b 2d 70 4e 5d |ge: %s [|-d][-pN]|
|00005550| 5c 6e 22 2c 20 70 72 6f | 67 29 3b 0a 2f 2a 20 58 |\n", pro|g);./* X|
|00005560| 58 58 09 66 70 72 69 6e | 74 66 28 73 74 64 65 72 |XX.fprin|tf(stder|
|00005570| 72 2c 20 22 75 73 61 67 | 65 3a 20 25 73 20 5b 2d |r, "usag|e: %s [-|
|00005580| 64 5d 5b 2d 70 4e 5d 5b | 2d 63 5d 5c 6e 22 2c 20 |d][-pN][|-c]\n", |
|00005590| 70 72 6f 67 29 3b 20 2a | 2f 0a 09 66 70 72 69 6e |prog); *|/..fprin|
|000055a0| 74 66 28 73 74 64 65 72 | 72 2c 20 22 20 20 2d 64 |tf(stder|r, "  -d|
|000055b0| 20 20 20 20 2d 20 74 75 | 72 6e 20 6f 6e 20 64 65 |    - tu|rn on de|
|000055c0| 62 75 67 67 69 6e 67 5c | 6e 22 29 3b 0a 09 66 70 |bugging\|n");..fp|
|000055d0| 72 69 6e 74 66 28 73 74 | 64 65 72 72 2c 20 22 20 |rintf(st|derr, " |
|000055e0| 20 2d 70 4e 20 20 20 2d | 20 75 73 65 20 70 6f 72 | -pN   -| use por|
|000055f0| 74 20 4e 20 28 64 65 66 | 61 75 6c 74 3a 20 31 38 |t N (def|ault: 18|
|00005600| 29 5c 6e 22 29 3b 0a 2f | 2a 20 58 58 58 09 66 70 |)\n");./|* XXX.fp|
|00005610| 72 69 6e 74 66 28 73 74 | 64 65 72 72 2c 20 22 20 |rintf(st|derr, " |
|00005620| 20 2d 63 20 20 20 20 2d | 20 69 67 6e 6f 72 65 20 | -c    -| ignore |
|00005630| 74 65 72 6d 69 6e 61 6c | 20 61 6e 64 20 75 73 65 |terminal| and use|
|00005640| 20 63 6f 6e 73 6f 6c 65 | 5c 6e 22 29 3b 20 2a 2f | console|\n"); */|
|00005650| 0a 0a 7d 0a 0a 69 6e 74 | 0a 6d 61 69 6e 28 61 72 |..}..int|.main(ar|
|00005660| 67 63 2c 20 61 72 67 76 | 29 0a 69 6e 74 20 61 72 |gc, argv|).int ar|
|00005670| 67 63 3b 0a 63 68 61 72 | 20 2a 61 72 67 76 5b 5d |gc;.char| *argv[]|
|00005680| 3b 0a 7b 0a 0a 09 73 68 | 6f 72 74 20 70 6f 72 74 |;.{...sh|ort port|
|00005690| 20 3d 20 30 3b 0a 09 69 | 6e 74 20 74 63 70 73 6f | = 0;..i|nt tcpso|
|000056a0| 63 6b 31 3b 0a 09 69 6e | 74 20 74 63 70 73 6f 63 |ck1;..in|t tcpsoc|
|000056b0| 6b 32 3b 0a 09 69 6e 74 | 20 75 64 70 73 6f 63 6b |k2;..int| udpsock|
|000056c0| 3b 0a 09 69 6e 74 20 69 | 3b 0a 09 66 64 5f 73 65 |;..int i|;..fd_se|
|000056d0| 74 20 72 65 61 64 79 3b | 0a 09 73 74 72 75 63 74 |t ready;|..struct|
|000056e0| 20 73 6f 63 6b 61 64 64 | 72 5f 69 6e 20 73 69 6e | sockadd|r_in sin|
|000056f0| 3b 0a 09 73 74 72 75 63 | 74 20 73 65 72 76 65 6e |;..struc|t serven|
|00005700| 74 20 2a 73 70 3b 0a 0a | 23 69 66 64 65 66 20 53 |t *sp;..|#ifdef S|
|00005710| 56 52 34 0a 09 69 6e 74 | 20 6e 66 64 73 3b 0a 09 |VR4..int| nfds;..|
|00005720| 73 74 72 75 63 74 20 72 | 6c 69 6d 69 74 20 72 6c |struct r|limit rl|
|00005730| 70 3b 0a 0a 09 69 66 20 | 28 67 65 74 72 6c 69 6d |p;...if |(getrlim|
|00005740| 69 74 28 52 4c 49 4d 49 | 54 5f 4e 4f 46 49 4c 45 |it(RLIMI|T_NOFILE|
|00005750| 2c 20 26 72 6c 70 29 20 | 26 26 20 64 65 62 75 67 |, &rlp) |&& debug|
|00005760| 29 0a 09 09 70 65 72 72 | 6f 72 28 22 67 65 74 72 |)...perr|or("getr|
|00005770| 6c 69 6d 69 74 22 29 3b | 0a 09 6e 66 64 73 20 3d |limit");|..nfds =|
|00005780| 20 72 6c 70 2e 72 6c 69 | 6d 5f 63 75 72 3b 0a 23 | rlp.rli|m_cur;.#|
|00005790| 65 6c 73 65 0a 09 69 6e | 74 20 6e 66 64 73 20 3d |else..in|t nfds =|
|000057a0| 20 67 65 74 64 74 61 62 | 6c 65 73 69 7a 65 28 29 | getdtab|lesize()|
|000057b0| 3b 0a 23 65 6e 64 69 66 | 0a 0a 0a 09 70 72 6f 67 |;.#endif|....prog|
|000057c0| 20 3d 20 2a 61 72 67 76 | 2b 2b 3b 0a 09 61 72 67 | = *argv|++;..arg|
|000057d0| 63 2d 2d 3b 0a 0a 09 2f | 2a 20 70 72 6f 63 65 73 |c--;.../|* proces|
|000057e0| 73 20 6f 70 74 69 6f 6e | 73 3a 0a 09 20 2a 20 2d |s option|s:.. * -|
|000057f0| 64 20 28 64 65 62 75 67 | 29 0a 09 20 2a 20 2d 70 |d (debug|).. * -p|
|00005800| 4e 20 28 75 73 65 20 70 | 6f 72 74 20 4e 20 69 6e |N (use p|ort N in|
|00005810| 73 74 65 61 64 20 6f 66 | 20 31 38 29 0a 09 20 2a |stead of| 18).. *|
|00005820| 2f 0a 0a 09 77 68 69 6c | 65 28 61 72 67 63 20 26 |/...whil|e(argc &|
|00005830| 26 20 2a 61 72 67 76 5b | 30 5d 20 3d 3d 20 27 2d |& *argv[|0] == '-|
|00005840| 27 29 20 7b 0a 09 09 28 | 2a 61 72 67 76 29 2b 2b |') {...(|*argv)++|
|00005850| 3b 0a 09 09 73 77 69 74 | 63 68 20 28 74 6f 75 70 |;...swit|ch (toup|
|00005860| 70 65 72 28 2a 61 72 67 | 76 5b 30 5d 29 29 7b 0a |per(*arg|v[0])){.|
|00005870| 09 09 09 63 61 73 65 20 | 27 44 27 3a 0a 09 09 09 |...case |'D':....|
|00005880| 09 64 65 62 75 67 2b 2b | 3b 0a 09 09 09 09 76 65 |.debug++|;.....ve|
|00005890| 72 62 6f 73 65 2b 2b 3b | 0a 09 09 09 09 62 72 65 |rbose++;|.....bre|
|000058a0| 61 6b 3b 0a 09 09 09 63 | 61 73 65 20 27 43 27 3a |ak;....c|ase 'C':|
|000058b0| 0a 09 09 09 09 75 73 65 | 5f 63 6f 6e 73 6f 6c 65 |.....use|_console|
|000058c0| 2b 2b 3b 0a 09 09 09 09 | 62 72 65 61 6b 3b 0a 09 |++;.....|break;..|
|000058d0| 09 09 63 61 73 65 20 27 | 50 27 3a 0a 09 09 09 09 |..case '|P':.....|
|000058e0| 28 2a 61 72 67 76 29 2b | 2b 3b 0a 09 09 09 09 70 |(*argv)+|+;.....p|
|000058f0| 6f 72 74 20 3d 20 61 74 | 6f 69 28 2a 61 72 67 76 |ort = at|oi(*argv|
|00005900| 29 3b 0a 09 09 09 09 62 | 72 65 61 6b 3b 0a 09 09 |);.....b|reak;...|
|00005910| 09 64 65 66 61 75 6c 74 | 3a 0a 09 09 09 09 75 73 |.default|:.....us|
|00005920| 61 67 65 28 29 3b 0a 09 | 09 09 09 65 78 69 74 28 |age();..|...exit(|
|00005930| 31 29 3b 0a 09 09 09 09 | 2f 2a 4e 4f 54 52 45 41 |1);.....|/*NOTREA|
|00005940| 43 48 45 44 2a 2f 0a 09 | 09 7d 0a 09 09 61 72 67 |CHED*/..|.}...arg|
|00005950| 76 2b 2b 3b 0a 09 09 61 | 72 67 63 2d 2d 3b 0a 09 |v++;...a|rgc--;..|
|00005960| 7d 0a 09 69 66 28 61 72 | 67 63 20 21 3d 20 30 29 |}..if(ar|gc != 0)|
|00005970| 20 7b 0a 09 09 75 73 61 | 67 65 28 29 3b 0a 09 09 | {...usa|ge();...|
|00005980| 65 78 69 74 28 31 29 3b | 0a 09 09 2f 2a 4e 4f 54 |exit(1);|.../*NOT|
|00005990| 52 45 41 43 48 45 44 2a | 2f 0a 09 7d 0a 0a 09 69 |REACHED*|/..}...i|
|000059a0| 66 28 21 64 65 62 75 67 | 29 20 7b 0a 09 09 69 66 |f(!debug|) {...if|
|000059b0| 28 66 6f 72 6b 28 29 29 | 0a 09 09 09 65 78 69 74 |(fork())|....exit|
|000059c0| 28 30 29 3b 0a 09 09 66 | 6f 72 28 69 20 3d 20 6e |(0);...f|or(i = n|
|000059d0| 66 64 73 2d 31 3b 20 69 | 20 3e 3d 20 30 3b 20 2d |fds-1; i| >= 0; -|
|000059e0| 2d 69 29 0a 09 09 09 63 | 6c 6f 73 65 28 69 29 3b |-i)....c|lose(i);|
|000059f0| 0a 09 09 28 76 6f 69 64 | 29 6f 70 65 6e 28 22 2f |...(void|)open("/|
|00005a00| 64 65 76 2f 6e 75 6c 6c | 22 2c 20 4f 5f 52 44 57 |dev/null|", O_RDW|
|00005a10| 52 29 3b 0a 09 09 64 75 | 70 32 28 30 2c 20 31 29 |R);...du|p2(0, 1)|
|00005a20| 3b 0a 09 09 64 75 70 32 | 28 30 2c 20 32 29 3b 0a |;...dup2|(0, 2);.|
|00005a30| 23 69 66 64 65 66 20 53 | 56 52 34 0a 09 09 73 65 |#ifdef S|VR4...se|
|00005a40| 74 73 69 64 28 29 3b 0a | 23 65 6c 73 65 0a 2f 2a |tsid();.|#else./*|
|00005a50| 20 4e 42 20 2d 20 73 65 | 74 73 69 64 28 29 20 61 | NB - se|tsid() a|
|00005a60| 6c 73 6f 20 77 6f 72 6b | 73 20 69 6e 20 53 75 6e |lso work|s in Sun|
|00005a70| 4f 53 20 62 75 74 20 6d | 61 79 62 65 20 6e 6f 74 |OS but m|aybe not|
|00005a80| 20 6f 74 68 65 72 20 42 | 53 44 2d 64 65 72 69 76 | other B|SD-deriv|
|00005a90| 65 64 20 63 6f 64 65 20 | 2a 2f 0a 09 09 69 20 3d |ed code |*/...i =|
|00005aa0| 20 6f 70 65 6e 28 22 2f | 64 65 76 2f 74 74 79 22 | open("/|dev/tty"|
|00005ab0| 2c 20 4f 5f 52 44 57 52 | 29 3b 0a 09 09 69 66 28 |, O_RDWR|);...if(|
|00005ac0| 69 20 3e 3d 20 30 29 7b | 0a 09 09 09 69 6f 63 74 |i >= 0){|....ioct|
|00005ad0| 6c 28 69 2c 20 54 49 4f | 43 4e 4f 54 54 59 2c 20 |l(i, TIO|CNOTTY, |
|00005ae0| 30 29 3b 0a 09 09 09 63 | 6c 6f 73 65 28 69 29 3b |0);....c|lose(i);|
|00005af0| 0a 09 09 7d 0a 23 65 6e | 64 69 66 0a 2f 2a 20 58 |...}.#en|dif./* X|
|00005b00| 58 58 20 74 6f 64 6f 20 | 2d 20 61 64 64 20 63 6f |XX todo |- add co|
|00005b10| 64 65 20 74 6f 20 75 73 | 65 20 53 59 53 4c 4f 47 |de to us|e SYSLOG|
|00005b20| 20 69 66 20 77 65 27 72 | 65 20 6e 6f 74 20 69 6e | if we'r|e not in|
|00005b30| 20 64 65 62 75 67 20 6d | 6f 64 65 20 2a 2f 0a 09 | debug m|ode */..|
|00005b40| 7d 0a 0a 23 69 66 64 65 | 66 20 53 56 52 34 0a 09 |}..#ifde|f SVR4..|
|00005b50| 2f 2a 0a 09 20 2a 20 20 | 75 73 65 20 73 69 67 73 |/*.. *  |use sigs|
|00005b60| 65 74 20 74 6f 20 67 65 | 74 20 42 53 44 20 73 65 |et to ge|t BSD se|
|00005b70| 6d 61 6e 74 69 63 73 0a | 09 20 2a 2f 0a 09 73 69 |mantics.|. */..si|
|00005b80| 67 73 65 74 28 53 49 47 | 43 48 4c 44 2c 20 72 65 |gset(SIG|CHLD, re|
|00005b90| 61 70 65 72 29 3b 0a 23 | 65 6c 73 65 20 21 53 56 |aper);.#|else !SV|
|00005ba0| 52 34 0a 09 73 69 67 6e | 61 6c 28 53 49 47 43 48 |R4..sign|al(SIGCH|
|00005bb0| 4c 44 2c 20 72 65 61 70 | 65 72 29 3b 0a 23 65 6e |LD, reap|er);.#en|
|00005bc0| 64 69 66 20 53 56 52 34 | 0a 0a 09 73 69 6e 2e 73 |dif SVR4|...sin.s|
|00005bd0| 69 6e 5f 66 61 6d 69 6c | 79 20 3d 20 41 46 5f 49 |in_famil|y = AF_I|
|00005be0| 4e 45 54 3b 0a 0a 09 2f | 2a 0a 09 20 2a 20 63 6f |NET;.../|*.. * co|
|00005bf0| 6d 70 75 74 65 20 74 68 | 65 20 70 6f 72 74 20 74 |mpute th|e port t|
|00005c00| 6f 20 75 73 65 3a 20 63 | 6f 6e 73 75 6c 74 20 2f |o use: c|onsult /|
|00005c10| 65 74 63 2f 73 65 72 76 | 69 63 65 73 2c 20 62 75 |etc/serv|ices, bu|
|00005c20| 74 20 69 66 20 6e 6f 74 | 0a 09 20 2a 20 66 6f 75 |t if not|.. * fou|
|00005c30| 6e 64 20 75 73 65 20 31 | 38 20 28 66 72 6f 6d 20 |nd use 1|8 (from |
|00005c40| 74 68 65 20 52 46 43 29 | 2e 20 74 68 65 20 2d 70 |the RFC)|. the -p|
|00005c50| 4e 20 6f 70 74 69 6f 6e | 20 6f 76 65 72 72 69 64 |N option| overrid|
|00005c60| 65 73 0a 09 20 2a 2f 0a | 0a 09 69 66 28 70 6f 72 |es.. */.|..if(por|
|00005c70| 74 20 3d 3d 20 30 29 20 | 7b 0a 09 09 73 70 20 3d |t == 0) |{...sp =|
|00005c80| 20 67 65 74 73 65 72 76 | 62 79 6e 61 6d 65 28 22 | getserv|byname("|
|00005c90| 6d 65 73 73 61 67 65 22 | 2c 20 22 75 64 70 22 29 |message"|, "udp")|
|00005ca0| 3b 0a 09 09 69 66 28 73 | 70 29 0a 09 09 09 73 69 |;...if(s|p)....si|
|00005cb0| 6e 2e 73 69 6e 5f 70 6f | 72 74 20 3d 20 73 70 2d |n.sin_po|rt = sp-|
|00005cc0| 3e 73 5f 70 6f 72 74 3b | 0a 09 09 65 6c 73 65 0a |>s_port;|...else.|
|00005cd0| 09 09 09 73 69 6e 2e 73 | 69 6e 5f 70 6f 72 74 20 |...sin.s|in_port |
|00005ce0| 3d 20 68 74 6f 6e 73 28 | 31 38 29 3b 09 2f 2a 20 |= htons(|18);./* |
|00005cf0| 66 72 6f 6d 20 74 68 65 | 20 52 46 43 20 2a 2f 0a |from the| RFC */.|
|00005d00| 09 7d 0a 09 65 6c 73 65 | 0a 09 09 73 69 6e 2e 73 |.}..else|...sin.s|
|00005d10| 69 6e 5f 70 6f 72 74 20 | 3d 20 68 74 6f 6e 73 28 |in_port |= htons(|
|00005d20| 70 6f 72 74 29 3b 0a 0a | 09 73 69 6e 2e 73 69 6e |port);..|.sin.sin|
|00005d30| 5f 61 64 64 72 2e 73 5f | 61 64 64 72 20 3d 20 49 |_addr.s_|addr = I|
|00005d40| 4e 41 44 44 52 5f 41 4e | 59 3b 0a 0a 09 69 66 28 |NADDR_AN|Y;...if(|
|00005d50| 64 65 62 75 67 29 20 70 | 72 69 6e 74 66 28 22 25 |debug) p|rintf("%|
|00005d60| 73 3a 20 75 73 69 6e 67 | 20 70 6f 72 74 20 25 64 |s: using| port %d|
|00005d70| 5c 6e 22 2c 20 70 72 6f | 67 2c 20 68 74 6f 6e 73 |\n", pro|g, htons|
|00005d80| 28 73 69 6e 2e 73 69 6e | 5f 70 6f 72 74 29 29 3b |(sin.sin|_port));|
|00005d90| 0a 0a 0a 0a 09 74 63 70 | 73 6f 63 6b 31 20 3d 20 |.....tcp|sock1 = |
|00005da0| 73 6f 63 6b 65 74 28 41 | 46 5f 49 4e 45 54 2c 20 |socket(A|F_INET, |
|00005db0| 53 4f 43 4b 5f 53 54 52 | 45 41 4d 2c 20 30 29 3b |SOCK_STR|EAM, 0);|
|00005dc0| 0a 09 69 66 28 62 69 6e | 64 28 74 63 70 73 6f 63 |..if(bin|d(tcpsoc|
|00005dd0| 6b 31 2c 20 28 73 74 72 | 75 63 74 20 73 6f 63 6b |k1, (str|uct sock|
|00005de0| 61 64 64 72 20 2a 29 26 | 73 69 6e 2c 20 73 69 7a |addr *)&|sin, siz|
|00005df0| 65 6f 66 20 73 69 6e 29 | 20 3c 20 30 29 20 7b 0a |eof sin)| < 0) {.|
|00005e00| 09 09 69 66 28 64 65 62 | 75 67 29 20 70 65 72 72 |..if(deb|ug) perr|
|00005e10| 6f 72 28 22 62 69 6e 64 | 20 28 54 43 50 29 22 29 |or("bind| (TCP)")|
|00005e20| 3b 0a 09 09 65 78 69 74 | 28 39 39 29 3b 20 2f 2a |;...exit|(99); /*|
|00005e30| 20 58 58 58 20 2a 2f 0a | 09 7d 0a 09 6c 69 73 74 | XXX */.|.}..list|
|00005e40| 65 6e 28 74 63 70 73 6f | 63 6b 31 2c 20 35 29 3b |en(tcpso|ck1, 5);|
|00005e50| 0a 0a 09 75 64 70 73 6f | 63 6b 20 3d 20 73 6f 63 |...udpso|ck = soc|
|00005e60| 6b 65 74 28 41 46 5f 49 | 4e 45 54 2c 20 53 4f 43 |ket(AF_I|NET, SOC|
|00005e70| 4b 5f 44 47 52 41 4d 2c | 20 30 29 3b 0a 09 69 66 |K_DGRAM,| 0);..if|
|00005e80| 28 62 69 6e 64 28 75 64 | 70 73 6f 63 6b 2c 20 28 |(bind(ud|psock, (|
|00005e90| 73 74 72 75 63 74 20 73 | 6f 63 6b 61 64 64 72 20 |struct s|ockaddr |
|00005ea0| 2a 29 26 73 69 6e 2c 20 | 73 69 7a 65 6f 66 20 73 |*)&sin, |sizeof s|
|00005eb0| 69 6e 29 20 3c 20 30 29 | 20 7b 0a 09 09 69 66 28 |in) < 0)| {...if(|
|00005ec0| 64 65 62 75 67 29 20 70 | 65 72 72 6f 72 28 22 62 |debug) p|error("b|
|00005ed0| 69 6e 64 20 28 55 44 50 | 29 22 29 3b 0a 09 09 65 |ind (UDP|)");...e|
|00005ee0| 78 69 74 28 39 39 29 3b | 20 2f 2a 20 58 58 58 20 |xit(99);| /* XXX |
|00005ef0| 2a 2f 0a 09 7d 0a 0a 09 | 69 66 28 64 65 62 75 67 |*/..}...|if(debug|
|00005f00| 29 20 70 72 69 6e 74 66 | 28 22 65 6e 74 65 72 69 |) printf|("enteri|
|00005f10| 6e 67 20 6d 61 69 6e 20 | 6c 6f 6f 70 2e 2e 2e 5c |ng main |loop...\|
|00005f20| 6e 22 29 3b 0a 09 77 68 | 69 6c 65 28 31 29 20 7b |n");..wh|ile(1) {|
|00005f30| 0a 09 09 46 44 5f 5a 45 | 52 4f 28 26 72 65 61 64 |...FD_ZE|RO(&read|
|00005f40| 79 29 3b 0a 09 09 46 44 | 5f 53 45 54 28 75 64 70 |y);...FD|_SET(udp|
|00005f50| 73 6f 63 6b 2c 20 26 72 | 65 61 64 79 29 3b 0a 09 |sock, &r|eady);..|
|00005f60| 09 46 44 5f 53 45 54 28 | 74 63 70 73 6f 63 6b 31 |.FD_SET(|tcpsock1|
|00005f70| 2c 20 26 72 65 61 64 79 | 29 3b 0a 09 09 69 20 3d |, &ready|);...i =|
|00005f80| 20 73 65 6c 65 63 74 28 | 6e 66 64 73 2c 20 26 72 | select(|nfds, &r|
|00005f90| 65 61 64 79 2c 20 28 66 | 64 5f 73 65 74 20 2a 29 |eady, (f|d_set *)|
|00005fa0| 30 2c 20 28 66 64 5f 73 | 65 74 20 2a 29 30 2c 20 |0, (fd_s|et *)0, |
|00005fb0| 28 73 74 72 75 63 74 20 | 74 69 6d 65 76 61 6c 20 |(struct |timeval |
|00005fc0| 2a 29 30 29 3b 0a 09 09 | 69 66 28 64 65 62 75 67 |*)0);...|if(debug|
|00005fd0| 29 20 70 72 69 6e 74 66 | 28 22 2d 2d 2d 2d 2d 2d |) printf|("------|
|00005fe0| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00005ff0| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00006000| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00006010| 2d 2d 2d 2d 5c 6e 73 65 | 6c 65 63 74 20 72 65 74 |----\nse|lect ret|
|00006020| 75 72 6e 65 64 20 25 64 | 5c 6e 22 2c 20 69 29 3b |urned %d|\n", i);|
|00006030| 0a 09 09 69 66 28 69 20 | 3c 3d 20 30 29 20 7b 0a |...if(i |<= 0) {.|
|00006040| 09 09 09 69 66 28 64 65 | 62 75 67 29 70 65 72 72 |...if(de|bug)perr|
|00006050| 6f 72 28 22 73 65 6c 65 | 63 74 22 29 3b 0a 09 09 |or("sele|ct");...|
|00006060| 09 63 6f 6e 74 69 6e 75 | 65 3b 0a 09 09 7d 0a 09 |.continu|e;...}..|
|00006070| 09 69 66 28 46 44 5f 49 | 53 53 45 54 28 75 64 70 |.if(FD_I|SSET(udp|
|00006080| 73 6f 63 6b 2c 20 26 72 | 65 61 64 79 29 29 0a 09 |sock, &r|eady))..|
|00006090| 09 09 68 61 6e 64 6c 65 | 5f 75 64 70 28 75 64 70 |..handle|_udp(udp|
|000060a0| 73 6f 63 6b 29 3b 0a 09 | 09 65 6c 73 65 20 69 66 |sock);..|.else if|
|000060b0| 28 46 44 5f 49 53 53 45 | 54 28 74 63 70 73 6f 63 |(FD_ISSE|T(tcpsoc|
|000060c0| 6b 31 2c 20 26 72 65 61 | 64 79 29 29 20 7b 0a 09 |k1, &rea|dy)) {..|
|000060d0| 09 09 74 63 70 73 6f 63 | 6b 32 20 3d 20 61 63 63 |..tcpsoc|k2 = acc|
|000060e0| 65 70 74 28 74 63 70 73 | 6f 63 6b 31 2c 20 28 73 |ept(tcps|ock1, (s|
|000060f0| 74 72 75 63 74 20 73 6f | 63 6b 61 64 64 72 20 2a |truct so|ckaddr *|
|00006100| 29 30 2c 0a 09 09 09 09 | 28 69 6e 74 20 2a 29 30 |)0,.....|(int *)0|
|00006110| 29 3b 0a 0a 09 09 09 69 | 66 28 64 65 62 75 67 29 |);.....i|f(debug)|
|00006120| 0a 09 09 09 09 70 72 69 | 6e 74 66 28 22 66 6f 72 |.....pri|ntf("for|
|00006130| 6b 69 6e 67 2e 2e 2e 2e | 5c 6e 22 29 3b 0a 0a 09 |king....|\n");...|
|00006140| 09 09 69 66 28 66 6f 72 | 6b 28 29 20 3d 3d 20 30 |..if(for|k() == 0|
|00006150| 29 20 7b 0a 09 09 09 09 | 63 6c 6f 73 65 28 74 63 |) {.....|close(tc|
|00006160| 70 73 6f 63 6b 31 29 3b | 0a 09 09 09 09 63 6c 6f |psock1);|.....clo|
|00006170| 73 65 28 75 64 70 73 6f | 63 6b 29 3b 0a 09 09 09 |se(udpso|ck);....|
|00006180| 09 68 61 6e 64 6c 65 5f | 74 63 70 28 74 63 70 73 |.handle_|tcp(tcps|
|00006190| 6f 63 6b 32 29 3b 0a 09 | 09 09 09 65 78 69 74 28 |ock2);..|...exit(|
|000061a0| 30 29 3b 0a 09 09 09 7d | 0a 09 09 7d 0a 09 7d 0a |0);....}|...}..}.|
|000061b0| 7d 0a 0a 23 64 65 66 69 | 6e 65 20 43 41 43 48 45 |}..#defi|ne CACHE|
|000061c0| 5f 45 4e 54 52 49 45 53 | 20 33 32 0a 0a 73 74 72 |_ENTRIES| 32..str|
|000061d0| 75 63 74 20 6d 63 5f 65 | 6e 74 72 79 20 7b 0a 09 |uct mc_e|ntry {..|
|000061e0| 73 74 72 75 63 74 20 73 | 6f 63 6b 61 64 64 72 5f |struct s|ockaddr_|
|000061f0| 69 6e 20 6d 63 5f 61 64 | 64 72 3b 0a 09 63 68 61 |in mc_ad|dr;..cha|
|00006200| 72 20 6d 63 5f 63 6f 6f | 6b 69 65 5b 34 38 5d 3b |r mc_coo|kie[48];|
|00006210| 0a 7d 3b 0a 0a 69 6e 74 | 20 6d 63 5f 75 73 65 64 |.};..int| mc_used|
|00006220| 20 3d 20 30 3b 0a 69 6e | 74 20 6d 63 5f 6e 65 78 | = 0;.in|t mc_nex|
|00006230| 74 20 3d 20 30 3b 0a 73 | 74 72 75 63 74 20 6d 63 |t = 0;.s|truct mc|
|00006240| 5f 65 6e 74 72 79 20 6d | 63 61 63 68 65 5b 43 41 |_entry m|cache[CA|
|00006250| 43 48 45 5f 45 4e 54 52 | 49 45 53 5d 3b 0a 0a 69 |CHE_ENTR|IES];..i|
|00006260| 6e 74 0a 63 68 65 63 6b | 5f 63 61 63 68 65 28 63 |nt.check|_cache(c|
|00006270| 6f 6f 6b 69 65 2c 20 61 | 64 64 72 70 29 0a 63 68 |ookie, a|ddrp).ch|
|00006280| 61 72 20 2a 63 6f 6f 6b | 69 65 3b 0a 73 74 72 75 |ar *cook|ie;.stru|
|00006290| 63 74 20 73 6f 63 6b 61 | 64 64 72 5f 69 6e 20 2a |ct socka|ddr_in *|
|000062a0| 61 64 64 72 70 3b 0a 7b | 0a 09 69 6e 74 20 69 3b |addrp;.{|..int i;|
|000062b0| 0a 09 69 66 28 6d 63 5f | 75 73 65 64 29 20 7b 0a |..if(mc_|used) {.|
|000062c0| 09 09 66 6f 72 20 28 69 | 20 3d 20 30 3b 20 69 20 |..for (i| = 0; i |
|000062d0| 3c 20 6d 63 5f 75 73 65 | 64 3b 20 69 2b 2b 29 20 |< mc_use|d; i++) |
|000062e0| 7b 0a 09 09 09 69 66 28 | 21 73 74 72 63 6d 70 28 |{....if(|!strcmp(|
|000062f0| 63 6f 6f 6b 69 65 2c 20 | 6d 63 61 63 68 65 5b 69 |cookie, |mcache[i|
|00006300| 5d 2e 6d 63 5f 63 6f 6f | 6b 69 65 29 20 26 26 0a |].mc_coo|kie) &&.|
|00006310| 09 09 09 20 20 20 21 6d | 65 6d 63 6d 70 28 28 63 |...   !m|emcmp((c|
|00006320| 68 61 72 20 2a 29 61 64 | 64 72 70 2c 20 28 63 68 |har *)ad|drp, (ch|
|00006330| 61 72 20 2a 29 26 6d 63 | 61 63 68 65 5b 69 5d 2e |ar *)&mc|ache[i].|
|00006340| 6d 63 5f 61 64 64 72 2c | 0a 09 09 09 09 73 69 7a |mc_addr,|.....siz|
|00006350| 65 6f 66 28 2a 61 64 64 | 72 70 29 29 29 0a 09 09 |eof(*add|rp)))...|
|00006360| 09 09 72 65 74 75 72 6e | 28 31 29 3b 0a 09 09 7d |..return|(1);...}|
|00006370| 0a 09 7d 0a 09 6d 65 6d | 63 70 79 28 28 63 68 61 |..}..mem|cpy((cha|
|00006380| 72 20 2a 29 26 6d 63 61 | 63 68 65 5b 6d 63 5f 6e |r *)&mca|che[mc_n|
|00006390| 65 78 74 5d 2e 6d 63 5f | 61 64 64 72 2c 20 28 63 |ext].mc_|addr, (c|
|000063a0| 68 61 72 20 2a 29 61 64 | 64 72 70 2c 20 73 69 7a |har *)ad|drp, siz|
|000063b0| 65 6f 66 28 2a 61 64 64 | 72 70 29 29 3b 0a 09 73 |eof(*add|rp));..s|
|000063c0| 74 72 63 70 79 28 6d 63 | 61 63 68 65 5b 6d 63 5f |trcpy(mc|ache[mc_|
|000063d0| 6e 65 78 74 5d 2e 6d 63 | 5f 63 6f 6f 6b 69 65 2c |next].mc|_cookie,|
|000063e0| 20 63 6f 6f 6b 69 65 29 | 3b 0a 0a 09 6d 63 5f 6e | cookie)|;...mc_n|
|000063f0| 65 78 74 2b 2b 3b 0a 09 | 69 66 28 6d 63 5f 6e 65 |ext++;..|if(mc_ne|
+--------+-------------------------+-------------------------+--------+--------+