diff options
Diffstat (limited to 'ax25/axspawn.c')
| -rw-r--r-- | ax25/axspawn.c | 946 |
1 files changed, 473 insertions, 473 deletions
diff --git a/ax25/axspawn.c b/ax25/axspawn.c index 6092b77..4b1e410 100644 --- a/ax25/axspawn.c +++ b/ax25/axspawn.c @@ -4,18 +4,18 @@ * Copyright (c) 1996 Joerg Reuter DL1BKE (jreuter@poboxes.com) * * This program is a hack. - * + * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. - * + * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * - * It might even kill your cat... ;-) + * It might even kill your cat... ;-) * * Status: alpha (still...) * @@ -28,19 +28,19 @@ * default * * * * * 1 root /usr/local/sbin/axspawn axspawn --wait * * The program will check if the peer is an AX.25 socket, the - * callsign is a valid amateur radio callsign, strip the SSID, + * callsign is a valid amateur radio callsign, strip the SSID, * check if UID/GID are valid, allow a password-less login if the * password-entry in /etc/passwd is "+" or empty; in every other case * login will prompt for a password. * - * Still on my TODO list: a TheNet compatible or MD5 based + * Still on my TODO list: a TheNet compatible or MD5 based * authentication scheme... Won't help you if you changed the "+"-entry - * in /etc/passwd to a valid passord and login with telnet, though. + * in /etc/passwd to a valid passord and login with telnet, though. * A better solution could be a small program called from .profile. * * Axspawn can create user accounts automatically. You may specify * the user shell, first and maximum user id, group ID in the config - * file and (unlike WAMPES) create a file "/usr/local/etc/ax25.profile" + * file and (unlike WAMPES) create a file "/usr/local/etc/ax25.profile" * which will be copied to ~/.profile. * * This is an example for the config file: @@ -126,7 +126,7 @@ * shorter than 6 characters (without SSID). There must be at least * one digit, and max. two digits within the call. The SSID must * be within the range of 0 and 15. Please drop me a note if you - * know a valid Amateur Radio (sic!) callsign that does not fit this + * know a valid Amateur Radio (sic!) callsign that does not fit this * pattern _and_ can be represented correctly in AX.25. * * It uses the forkpty from libbsd.a (found after analyzing logind) @@ -219,222 +219,222 @@ struct huffdecodtab { /* huffman encoding table */ static struct huffencodtab huffencodtab[] = { -{0xab2c,15},{0xaa84,15},{0x9fc4,15},{0xab3c,15}, -{0xab1c,15},{0xaafc,15},{0xaaec,15},{0xaad4,15}, -{0xaab4,15},{0xf340,10},{0xaaa4,15},{0x7d64,15}, -{0xaadc,15},{0xf400, 7},{0xaa94,15},{0x9ff4,15}, -{0x9fd4,15},{0x7d74,15},{0xab44,15},{0xab34,15}, -{0xab24,15},{0xab14,15},{0xab04,15},{0xaaf4,15}, -{0xaae4,15},{0xab60,14},{0xab0c,15},{0xaacc,15}, -{0xaabc,15},{0xaaac,15},{0xaa9c,15},{0xaa8c,15}, -{0xc000, 3},{0x3a80, 9},{0xabc0,10},{0x0060,11}, -{0x7d40,12},{0xab5c,14},{0x0000,12},{0xab58,14}, -{0x7c00, 9},{0x3c80, 9},{0x7d00,11},{0x0010,12}, -{0x1200, 7},{0x7a00, 7},{0xb800, 6},{0x3200, 7}, -{0x2200, 7},{0xf600, 8},{0x3d00, 8},{0x9e00, 9}, -{0xbd80, 9},{0x7c80, 9},{0x0080, 9},{0xaa00, 9}, -{0xbd00, 9},{0x9f00, 9},{0x0300, 8},{0xab78,13}, -{0xab68,13},{0x3c00, 9},{0x3000, 9},{0x0020,11}, -{0x7d50,12},{0x3800, 7},{0x7800, 7},{0x9c00, 7}, -{0xfe00, 7},{0x2400, 6},{0xbc00, 8},{0x0200, 8}, -{0x0100, 8},{0xf100, 8},{0x0040,11},{0x3100, 8}, -{0xf200, 8},{0x3400, 7},{0x1c00, 7},{0x1e00, 7}, -{0xbe00, 7},{0xaba0,11},{0x3e00, 7},{0x1400, 6}, -{0x3600, 7},{0xf380, 9},{0xf080, 9},{0x2000, 8}, -{0xfc00, 8},{0x9f80,10},{0x9e80, 9},{0xab90,12}, -{0x3b80, 9},{0xab80,12},{0xab54,14},{0x3a50,13}, -{0xab50,14},{0xa000, 5},{0x1800, 6},{0x9800, 6}, -{0x7000, 5},{0x4000, 3},{0x0400, 6},{0xac00, 6}, -{0xf800, 6},{0x6000, 4},{0x3a00,10},{0xfd00, 8}, -{0x2800, 5},{0xb000, 6},{0x8000, 4},{0xb400, 6}, -{0x1000, 7},{0x7d20,12},{0xe000, 5},{0x9000, 5}, -{0xe800, 5},{0x0800, 5},{0xf700, 8},{0xa800, 7}, -{0x7d80, 9},{0xf300,10},{0x7e00, 7},{0xab48,14}, -{0x3a48,13},{0xab4c,14},{0x3a60,12},{0x9ffc,15}, -{0x9fec,15},{0x2100, 8},{0x9fdc,15},{0x9fcc,15}, -{0xf000, 9},{0x7d7c,15},{0x7d6c,15},{0x3a40,14}, -{0xab40,15},{0xab38,15},{0xab30,15},{0xab28,15}, -{0xab20,15},{0xab18,15},{0xab70,13},{0xab10,15}, -{0xab08,15},{0xab00,15},{0xaaf8,15},{0xaaf0,15}, -{0x3b00, 9},{0xaae8,15},{0xaae0,15},{0xaad8,15}, -{0xaad0,15},{0xab64,14},{0x7d30,12},{0xaac8,15}, -{0xaac0,15},{0xaab8,15},{0xaab0,15},{0xaaa8,15}, -{0xaaa0,15},{0xaa98,15},{0xaa90,15},{0xaa88,15}, -{0xaa80,15},{0x9ff8,15},{0x9ff0,15},{0x9fe8,15}, -{0x9fe0,15},{0x9fd8,15},{0x9fd0,15},{0x9fc8,15}, -{0x9fc0,15},{0x7d78,15},{0x7d70,15},{0x3a58,13}, -{0x7d68,15},{0x7d60,15},{0xab46,15},{0xab42,15}, -{0xab3e,15},{0xab3a,15},{0xab36,15},{0xab32,15}, -{0xab2e,15},{0xab2a,15},{0xab26,15},{0xab22,15}, -{0xab1e,15},{0xab1a,15},{0xab16,15},{0xab12,15}, -{0xab0e,15},{0xab0a,15},{0xab06,15},{0xab02,15}, -{0xaafe,15},{0xaafa,15},{0xaaf6,15},{0xaaf2,15}, -{0xaaee,15},{0xaaea,15},{0xaae6,15},{0xaae2,15}, -{0xaade,15},{0xaada,15},{0xaad6,15},{0xaad2,15}, -{0xaace,15},{0xaaca,15},{0xaac6,15},{0xaac2,15}, -{0xaabe,15},{0xaaba,15},{0xaab6,15},{0xaab2,15}, -{0xaaae,15},{0xaaaa,15},{0xaaa6,15},{0xaaa2,15}, -{0xaa9e,15},{0x3a70,12},{0xaa9a,15},{0xaa96,15}, -{0xaa92,15},{0x3080, 9},{0xaa8e,15},{0xaa8a,15}, -{0xaa86,15},{0xaa82,15},{0x9ffe,15},{0x9ffa,15}, -{0x9ff6,15},{0x9ff2,15},{0x9fee,15},{0x9fea,15}, -{0x9fe6,15},{0x9fe2,15},{0x9fde,15},{0x9fda,15}, -{0x9fd6,15},{0x9fd2,15},{0x9fce,15},{0x9fca,15}, -{0x9fc6,15},{0x9fc2,15},{0x7d7e,15},{0x7d7a,15}, -{0x7d76,15},{0x7d72,15},{0x7d6e,15},{0x7d6a,15}, -{0x7d66,15},{0x7d62,15},{0x3a46,15},{0x3a44,15} + {0xab2c, 15}, {0xaa84, 15}, {0x9fc4, 15}, {0xab3c, 15}, + {0xab1c, 15}, {0xaafc, 15}, {0xaaec, 15}, {0xaad4, 15}, + {0xaab4, 15}, {0xf340, 10}, {0xaaa4, 15}, {0x7d64, 15}, + {0xaadc, 15}, {0xf400, 7}, {0xaa94, 15}, {0x9ff4, 15}, + {0x9fd4, 15}, {0x7d74, 15}, {0xab44, 15}, {0xab34, 15}, + {0xab24, 15}, {0xab14, 15}, {0xab04, 15}, {0xaaf4, 15}, + {0xaae4, 15}, {0xab60, 14}, {0xab0c, 15}, {0xaacc, 15}, + {0xaabc, 15}, {0xaaac, 15}, {0xaa9c, 15}, {0xaa8c, 15}, + {0xc000, 3}, {0x3a80, 9}, {0xabc0, 10}, {0x0060, 11}, + {0x7d40, 12}, {0xab5c, 14}, {0x0000, 12}, {0xab58, 14}, + {0x7c00, 9}, {0x3c80, 9}, {0x7d00, 11}, {0x0010, 12}, + {0x1200, 7}, {0x7a00, 7}, {0xb800, 6}, {0x3200, 7}, + {0x2200, 7}, {0xf600, 8}, {0x3d00, 8}, {0x9e00, 9}, + {0xbd80, 9}, {0x7c80, 9}, {0x0080, 9}, {0xaa00, 9}, + {0xbd00, 9}, {0x9f00, 9}, {0x0300, 8}, {0xab78, 13}, + {0xab68, 13}, {0x3c00, 9}, {0x3000, 9}, {0x0020, 11}, + {0x7d50, 12}, {0x3800, 7}, {0x7800, 7}, {0x9c00, 7}, + {0xfe00, 7}, {0x2400, 6}, {0xbc00, 8}, {0x0200, 8}, + {0x0100, 8}, {0xf100, 8}, {0x0040, 11}, {0x3100, 8}, + {0xf200, 8}, {0x3400, 7}, {0x1c00, 7}, {0x1e00, 7}, + {0xbe00, 7}, {0xaba0, 11}, {0x3e00, 7}, {0x1400, 6}, + {0x3600, 7}, {0xf380, 9}, {0xf080, 9}, {0x2000, 8}, + {0xfc00, 8}, {0x9f80, 10}, {0x9e80, 9}, {0xab90, 12}, + {0x3b80, 9}, {0xab80, 12}, {0xab54, 14}, {0x3a50, 13}, + {0xab50, 14}, {0xa000, 5}, {0x1800, 6}, {0x9800, 6}, + {0x7000, 5}, {0x4000, 3}, {0x0400, 6}, {0xac00, 6}, + {0xf800, 6}, {0x6000, 4}, {0x3a00, 10}, {0xfd00, 8}, + {0x2800, 5}, {0xb000, 6}, {0x8000, 4}, {0xb400, 6}, + {0x1000, 7}, {0x7d20, 12}, {0xe000, 5}, {0x9000, 5}, + {0xe800, 5}, {0x0800, 5}, {0xf700, 8}, {0xa800, 7}, + {0x7d80, 9}, {0xf300, 10}, {0x7e00, 7}, {0xab48, 14}, + {0x3a48, 13}, {0xab4c, 14}, {0x3a60, 12}, {0x9ffc, 15}, + {0x9fec, 15}, {0x2100, 8}, {0x9fdc, 15}, {0x9fcc, 15}, + {0xf000, 9}, {0x7d7c, 15}, {0x7d6c, 15}, {0x3a40, 14}, + {0xab40, 15}, {0xab38, 15}, {0xab30, 15}, {0xab28, 15}, + {0xab20, 15}, {0xab18, 15}, {0xab70, 13}, {0xab10, 15}, + {0xab08, 15}, {0xab00, 15}, {0xaaf8, 15}, {0xaaf0, 15}, + {0x3b00, 9}, {0xaae8, 15}, {0xaae0, 15}, {0xaad8, 15}, + {0xaad0, 15}, {0xab64, 14}, {0x7d30, 12}, {0xaac8, 15}, + {0xaac0, 15}, {0xaab8, 15}, {0xaab0, 15}, {0xaaa8, 15}, + {0xaaa0, 15}, {0xaa98, 15}, {0xaa90, 15}, {0xaa88, 15}, + {0xaa80, 15}, {0x9ff8, 15}, {0x9ff0, 15}, {0x9fe8, 15}, + {0x9fe0, 15}, {0x9fd8, 15}, {0x9fd0, 15}, {0x9fc8, 15}, + {0x9fc0, 15}, {0x7d78, 15}, {0x7d70, 15}, {0x3a58, 13}, + {0x7d68, 15}, {0x7d60, 15}, {0xab46, 15}, {0xab42, 15}, + {0xab3e, 15}, {0xab3a, 15}, {0xab36, 15}, {0xab32, 15}, + {0xab2e, 15}, {0xab2a, 15}, {0xab26, 15}, {0xab22, 15}, + {0xab1e, 15}, {0xab1a, 15}, {0xab16, 15}, {0xab12, 15}, + {0xab0e, 15}, {0xab0a, 15}, {0xab06, 15}, {0xab02, 15}, + {0xaafe, 15}, {0xaafa, 15}, {0xaaf6, 15}, {0xaaf2, 15}, + {0xaaee, 15}, {0xaaea, 15}, {0xaae6, 15}, {0xaae2, 15}, + {0xaade, 15}, {0xaada, 15}, {0xaad6, 15}, {0xaad2, 15}, + {0xaace, 15}, {0xaaca, 15}, {0xaac6, 15}, {0xaac2, 15}, + {0xaabe, 15}, {0xaaba, 15}, {0xaab6, 15}, {0xaab2, 15}, + {0xaaae, 15}, {0xaaaa, 15}, {0xaaa6, 15}, {0xaaa2, 15}, + {0xaa9e, 15}, {0x3a70, 12}, {0xaa9a, 15}, {0xaa96, 15}, + {0xaa92, 15}, {0x3080, 9}, {0xaa8e, 15}, {0xaa8a, 15}, + {0xaa86, 15}, {0xaa82, 15}, {0x9ffe, 15}, {0x9ffa, 15}, + {0x9ff6, 15}, {0x9ff2, 15}, {0x9fee, 15}, {0x9fea, 15}, + {0x9fe6, 15}, {0x9fe2, 15}, {0x9fde, 15}, {0x9fda, 15}, + {0x9fd6, 15}, {0x9fd2, 15}, {0x9fce, 15}, {0x9fca, 15}, + {0x9fc6, 15}, {0x9fc2, 15}, {0x7d7e, 15}, {0x7d7a, 15}, + {0x7d76, 15}, {0x7d72, 15}, {0x7d6e, 15}, {0x7d6a, 15}, + {0x7d66, 15}, {0x7d62, 15}, {0x3a46, 15}, {0x3a44, 15} }; /* huffman decoding table */ static struct huffdecodtab huffdecodtab[] = { { 79, 1},{ 2, 66},{ 24, 3},{ 4,208}, -{292, 5},{ 6,298},{317, 7},{ 16, 8}, -{ 9,173},{ 10,116},{ 41, 11},{ 12, 37}, -{125, 13},{357, 14},{ 15,438},{ 0, 0}, -{229, 17},{ 18, 46},{ 19, 61},{ 20, 99}, -{ 21,161},{404, 22},{ 23,483},{ 1, 0}, -{306, 25},{313, 26},{294, 27},{245, 28}, -{221, 29},{231, 30},{277, 31},{ 32,103}, -{ 33,108},{ 34,339},{421, 35},{ 36,500}, -{ 2, 0},{122, 38},{353, 39},{ 40,434}, -{ 3, 0},{131, 42},{128, 43},{361, 44}, -{ 45,442},{ 4, 0},{ 56, 47},{ 52, 48}, -{135, 49},{370, 50},{ 51,450},{ 5, 0}, -{138, 53},{375, 54},{ 55,454},{ 6, 0}, -{148, 57},{ 58, 94},{381, 59},{ 60,460}, -{ 7, 0},{ 75, 62},{ 63,152},{392, 64}, -{ 65,469},{ 8, 0},{164, 67},{311, 68}, -{ 69,246},{ 70, 97},{253, 71},{257, 72}, -{ 73,270},{319, 74},{ 9, 0},{ 76,155}, -{396, 77},{ 78,473},{ 10, 0},{165, 80}, -{296, 81},{300, 82},{295, 83},{206, 84}, -{ 85,320},{193, 86},{ 87,318},{199, 88}, -{184, 89},{ 90,112},{ 91,346},{430, 92}, -{ 93,508},{ 11, 0},{379, 95},{ 96,458}, -{ 12, 0},{ 98,218},{ 13, 0},{100,158}, -{400,101},{102,478},{ 14, 0},{331,104}, -{105,328},{408,106},{107,487},{ 15, 0}, -{109,336},{417,110},{111,496},{ 16, 0}, -{113,343},{425,114},{115,504},{ 17, 0}, -{117,141},{118,186},{119,321},{351,120}, -{121,432},{ 18, 0},{355,123},{124,436}, -{ 19, 0},{359,126},{127,440},{ 20, 0}, -{364,129},{130,444},{ 21, 0},{132,145}, -{368,133},{134,448},{ 22, 0},{372,136}, -{137,452},{ 23, 0},{377,139},{140,456}, -{ 24, 0},{142,234},{143,236},{144,383}, -{ 25, 0},{366,146},{147,446},{ 26, 0}, -{387,149},{385,150},{151,462},{ 27, 0}, -{390,153},{154,467},{ 28, 0},{394,156}, -{157,471},{ 29, 0},{398,159},{160,475}, -{ 30, 0},{402,162},{163,481},{ 31, 0}, -{ 32, 0},{175,166},{214,167},{211,168}, -{169,195},{243,170},{171,281},{286,172}, -{ 33, 0},{265,174},{ 34, 0},{176,202}, -{177,315},{178,297},{179,232},{180,252}, -{181,228},{189,182},{255,183},{ 35, 0}, -{185,242},{ 36, 0},{284,187},{192,188}, -{ 37, 0},{190,241},{191,201},{ 38, 0}, -{ 39, 0},{194,227},{ 40, 0},{196,267}, -{197,220},{237,198},{ 41, 0},{200,309}, -{ 42, 0},{ 43, 0},{203,260},{204,268}, -{308,205},{ 44, 0},{244,207},{ 45, 0}, -{304,209},{210,223},{ 46, 0},{212,258}, -{238,213},{ 47, 0},{215,303},{216,249}, -{273,217},{ 48, 0},{219,316},{ 49, 0}, -{ 50, 0},{222,278},{ 51, 0},{224,264}, -{250,225},{230,226},{ 52, 0},{ 53, 0}, -{ 54, 0},{ 55, 0},{ 56, 0},{ 57, 0}, -{251,233},{ 58, 0},{363,235},{ 59, 0}, -{ 60, 0},{ 61, 0},{239,256},{240,480}, -{ 62, 0},{ 63, 0},{ 64, 0},{ 65, 0}, -{ 66, 0},{ 67, 0},{299,247},{275,248}, -{ 68, 0},{ 69, 0},{ 70, 0},{ 71, 0}, -{ 72, 0},{271,254},{ 73, 0},{ 74, 0}, -{ 75, 0},{ 76, 0},{259,269},{ 77, 0}, -{293,261},{262,263},{ 78, 0},{ 79, 0}, -{ 80, 0},{279,266},{ 81, 0},{ 82, 0}, -{ 83, 0},{ 84, 0},{ 85, 0},{342,272}, -{ 86, 0},{274,335},{ 87, 0},{276,302}, -{ 88, 0},{ 89, 0},{ 90, 0},{283,280}, -{ 91, 0},{374,282},{ 92, 0},{ 93, 0}, -{291,285},{ 94, 0},{301,287},{288,326}, -{323,289},{290,427},{ 95, 0},{ 96, 0}, -{ 97, 0},{ 98, 0},{ 99, 0},{100, 0}, -{101, 0},{102, 0},{103, 0},{104, 0}, -{105, 0},{106, 0},{107, 0},{108, 0}, -{305,307},{109, 0},{110, 0},{111, 0}, -{112, 0},{310,384},{113, 0},{312,314}, -{114, 0},{115, 0},{116, 0},{117, 0}, -{118, 0},{119, 0},{120, 0},{121, 0}, -{122, 0},{322,325},{123, 0},{349,324}, -{124, 0},{125, 0},{327,476},{126, 0}, -{406,329},{330,485},{127, 0},{412,332}, -{410,333},{334,489},{128, 0},{129, 0}, -{415,337},{338,494},{130, 0},{419,340}, -{341,498},{131, 0},{132, 0},{423,344}, -{345,502},{133, 0},{428,347},{348,506}, -{134, 0},{350,510},{135, 0},{352,433}, -{136, 0},{354,435},{137, 0},{356,437}, -{138, 0},{358,439},{139, 0},{360,441}, -{140, 0},{362,443},{141, 0},{142, 0}, -{365,445},{143, 0},{367,447},{144, 0}, -{369,449},{145, 0},{371,451},{146, 0}, -{373,453},{147, 0},{148, 0},{376,455}, -{149, 0},{378,457},{150, 0},{380,459}, -{151, 0},{382,461},{152, 0},{153, 0}, -{154, 0},{386,463},{155, 0},{388,464}, -{389,466},{156, 0},{391,468},{157, 0}, -{393,470},{158, 0},{395,472},{159, 0}, -{397,474},{160, 0},{399,477},{161, 0}, -{401,479},{162, 0},{403,482},{163, 0}, -{405,484},{164, 0},{407,486},{165, 0}, -{409,488},{166, 0},{411,490},{167, 0}, -{413,491},{414,493},{168, 0},{416,495}, -{169, 0},{418,497},{170, 0},{420,499}, -{171, 0},{422,501},{172, 0},{424,503}, -{173, 0},{426,505},{174, 0},{175, 0}, -{429,507},{176, 0},{431,509},{177, 0}, -{178, 0},{179, 0},{180, 0},{181, 0}, -{182, 0},{183, 0},{184, 0},{185, 0}, -{186, 0},{187, 0},{188, 0},{189, 0}, -{190, 0},{191, 0},{192, 0},{193, 0}, -{194, 0},{195, 0},{196, 0},{197, 0}, -{198, 0},{199, 0},{200, 0},{201, 0}, -{202, 0},{203, 0},{204, 0},{205, 0}, -{206, 0},{207, 0},{208, 0},{209, 0}, -{ 0,465},{210, 0},{211, 0},{212, 0}, -{213, 0},{214, 0},{215, 0},{216, 0}, -{217, 0},{218, 0},{219, 0},{220, 0}, -{221, 0},{222, 0},{223, 0},{224, 0}, -{225, 0},{226, 0},{227, 0},{228, 0}, -{229, 0},{230, 0},{231, 0},{232, 0}, -{233, 0},{234, 0},{235, 0},{ 0,492}, -{236, 0},{237, 0},{238, 0},{239, 0}, -{240, 0},{241, 0},{242, 0},{243, 0}, -{244, 0},{245, 0},{246, 0},{247, 0}, -{248, 0},{249, 0},{250, 0},{251, 0}, -{252, 0},{253, 0},{512,511},{254, 0}, -{255, 0} + {292, 5}, { 6,298}, {317, 7}, { 16, 8}, + { 9,173}, { 10,116}, { 41, 11}, { 12, 37}, + {125, 13}, {357, 14}, { 15,438}, { 0, 0}, + {229, 17}, { 18, 46}, { 19, 61}, { 20, 99}, + { 21,161}, {404, 22}, { 23,483}, { 1, 0}, + {306, 25}, {313, 26}, {294, 27}, {245, 28}, + {221, 29}, {231, 30}, {277, 31}, { 32,103}, + { 33,108}, { 34,339}, {421, 35}, { 36,500}, + { 2, 0}, {122, 38}, {353, 39}, { 40,434}, + { 3, 0}, {131, 42}, {128, 43}, {361, 44}, + { 45,442}, { 4, 0}, { 56, 47}, { 52, 48}, + {135, 49}, {370, 50}, { 51,450}, { 5, 0}, + {138, 53}, {375, 54}, { 55,454}, { 6, 0}, + {148, 57}, { 58, 94}, {381, 59}, { 60,460}, + { 7, 0}, { 75, 62}, { 63,152}, {392, 64}, + { 65,469}, { 8, 0}, {164, 67}, {311, 68}, + { 69,246}, { 70, 97}, {253, 71}, {257, 72}, + { 73,270}, {319, 74}, { 9, 0}, { 76,155}, + {396, 77}, { 78,473}, { 10, 0}, {165, 80}, + {296, 81}, {300, 82}, {295, 83}, {206, 84}, + { 85,320}, {193, 86}, { 87,318}, {199, 88}, + {184, 89}, { 90,112}, { 91,346}, {430, 92}, + { 93,508}, { 11, 0}, {379, 95}, { 96,458}, + { 12, 0}, { 98,218}, { 13, 0}, {100,158}, + {400,101}, {102,478}, { 14, 0}, {331,104}, + {105,328}, {408,106}, {107,487}, { 15, 0}, + {109,336}, {417,110}, {111,496}, { 16, 0}, + {113,343}, {425,114}, {115,504}, { 17, 0}, + {117,141}, {118,186}, {119,321}, {351,120}, + {121,432}, { 18, 0}, {355,123}, {124,436}, + { 19, 0}, {359,126}, {127,440}, { 20, 0}, + {364,129}, {130,444}, { 21, 0}, {132,145}, + {368,133}, {134,448}, { 22, 0}, {372,136}, + {137,452}, { 23, 0}, {377,139}, {140,456}, + { 24, 0}, {142,234}, {143,236}, {144,383}, + { 25, 0}, {366,146}, {147,446}, { 26, 0}, + {387,149}, {385,150}, {151,462}, { 27, 0}, + {390,153}, {154,467}, { 28, 0}, {394,156}, + {157,471}, { 29, 0}, {398,159}, {160,475}, + { 30, 0}, {402,162}, {163,481}, { 31, 0}, + { 32, 0}, {175,166}, {214,167}, {211,168}, + {169,195}, {243,170}, {171,281}, {286,172}, + { 33, 0}, {265,174}, { 34, 0}, {176,202}, + {177,315}, {178,297}, {179,232}, {180,252}, + {181,228}, {189,182}, {255,183}, { 35, 0}, + {185,242}, { 36, 0}, {284,187}, {192,188}, + { 37, 0}, {190,241}, {191,201}, { 38, 0}, + { 39, 0}, {194,227}, { 40, 0}, {196,267}, + {197,220}, {237,198}, { 41, 0}, {200,309}, + { 42, 0}, { 43, 0}, {203,260}, {204,268}, + {308,205}, { 44, 0}, {244,207}, { 45, 0}, + {304,209}, {210,223}, { 46, 0}, {212,258}, + {238,213}, { 47, 0}, {215,303}, {216,249}, + {273,217}, { 48, 0}, {219,316}, { 49, 0}, + { 50, 0}, {222,278}, { 51, 0}, {224,264}, + {250,225}, {230,226}, { 52, 0}, { 53, 0}, + { 54, 0}, { 55, 0}, { 56, 0}, { 57, 0}, + {251,233}, { 58, 0}, {363,235}, { 59, 0}, + { 60, 0}, { 61, 0}, {239,256}, {240,480}, + { 62, 0}, { 63, 0}, { 64, 0}, { 65, 0}, + { 66, 0}, { 67, 0}, {299,247}, {275,248}, + { 68, 0}, { 69, 0}, { 70, 0}, { 71, 0}, + { 72, 0}, {271,254}, { 73, 0}, { 74, 0}, + { 75, 0}, { 76, 0}, {259,269}, { 77, 0}, + {293,261}, {262,263}, { 78, 0}, { 79, 0}, + { 80, 0}, {279,266}, { 81, 0}, { 82, 0}, + { 83, 0}, { 84, 0}, { 85, 0}, {342,272}, + { 86, 0}, {274,335}, { 87, 0}, {276,302}, + { 88, 0}, { 89, 0}, { 90, 0}, {283,280}, + { 91, 0}, {374,282}, { 92, 0}, { 93, 0}, + {291,285}, { 94, 0}, {301,287}, {288,326}, + {323,289}, {290,427}, { 95, 0}, { 96, 0}, + { 97, 0}, { 98, 0}, { 99, 0}, {100, 0}, + {101, 0}, {102, 0}, {103, 0}, {104, 0}, + {105, 0}, {106, 0}, {107, 0}, {108, 0}, + {305,307}, {109, 0}, {110, 0}, {111, 0}, + {112, 0}, {310,384}, {113, 0}, {312,314}, + {114, 0}, {115, 0}, {116, 0}, {117, 0}, + {118, 0}, {119, 0}, {120, 0}, {121, 0}, + {122, 0}, {322,325}, {123, 0}, {349,324}, + {124, 0}, {125, 0}, {327,476}, {126, 0}, + {406,329}, {330,485}, {127, 0}, {412,332}, + {410,333}, {334,489}, {128, 0}, {129, 0}, + {415,337}, {338,494}, {130, 0}, {419,340}, + {341,498}, {131, 0}, {132, 0}, {423,344}, + {345,502}, {133, 0}, {428,347}, {348,506}, + {134, 0}, {350,510}, {135, 0}, {352,433}, + {136, 0}, {354,435}, {137, 0}, {356,437}, + {138, 0}, {358,439}, {139, 0}, {360,441}, + {140, 0}, {362,443}, {141, 0}, {142, 0}, + {365,445}, {143, 0}, {367,447}, {144, 0}, + {369,449}, {145, 0}, {371,451}, {146, 0}, + {373,453}, {147, 0}, {148, 0}, {376,455}, + {149, 0}, {378,457}, {150, 0}, {380,459}, + {151, 0}, {382,461}, {152, 0}, {153, 0}, + {154, 0}, {386,463}, {155, 0}, {388,464}, + {389,466}, {156, 0}, {391,468}, {157, 0}, + {393,470}, {158, 0}, {395,472}, {159, 0}, + {397,474}, {160, 0}, {399,477}, {161, 0}, + {401,479}, {162, 0}, {403,482}, {163, 0}, + {405,484}, {164, 0}, {407,486}, {165, 0}, + {409,488}, {166, 0}, {411,490}, {167, 0}, + {413,491}, {414,493}, {168, 0}, {416,495}, + {169, 0}, {418,497}, {170, 0}, {420,499}, + {171, 0}, {422,501}, {172, 0}, {424,503}, + {173, 0}, {426,505}, {174, 0}, {175, 0}, + {429,507}, {176, 0}, {431,509}, {177, 0}, + {178, 0}, {179, 0}, {180, 0}, {181, 0}, + {182, 0}, {183, 0}, {184, 0}, {185, 0}, + {186, 0}, {187, 0}, {188, 0}, {189, 0}, + {190, 0}, {191, 0}, {192, 0}, {193, 0}, + {194, 0}, {195, 0}, {196, 0}, {197, 0}, + {198, 0}, {199, 0}, {200, 0}, {201, 0}, + {202, 0}, {203, 0}, {204, 0}, {205, 0}, + {206, 0}, {207, 0}, {208, 0}, {209, 0}, + { 0,465}, {210, 0}, {211, 0}, {212, 0}, + {213, 0}, {214, 0}, {215, 0}, {216, 0}, + {217, 0}, {218, 0}, {219, 0}, {220, 0}, + {221, 0}, {222, 0}, {223, 0}, {224, 0}, + {225, 0}, {226, 0}, {227, 0}, {228, 0}, + {229, 0}, {230, 0}, {231, 0}, {232, 0}, + {233, 0}, {234, 0}, {235, 0}, { 0,492}, + {236, 0}, {237, 0}, {238, 0}, {239, 0}, + {240, 0}, {241, 0}, {242, 0}, {243, 0}, + {244, 0}, {245, 0}, {246, 0}, {247, 0}, + {248, 0}, {249, 0}, {250, 0}, {251, 0}, + {252, 0}, {253, 0}, {512,511}, {254, 0}, + {255, 0} }; static unsigned char mask8tab[8] = { - 0x80,0x40,0x20,0x10,0x08,0x04,0x02,0x01 + 0x80, 0x40, 0x20, 0x10, 0x08, 0x04, 0x02, 0x01 }; static unsigned short mask16tab[16] = { - 0x8000,0x4000,0x2000,0x1000,0x0800,0x0400,0x0200,0x0100, - 0x0080,0x0040,0x0020,0x0010,0x0008,0x0004,0x0002,0x0001 + 0x8000, 0x4000, 0x2000, 0x1000, 0x0800, 0x0400, 0x0200, 0x0100, + 0x0080, 0x0040, 0x0020, 0x0010, 0x0008, 0x0004, 0x0002, 0x0001 }; char policy_add_user = 1; -char policy_add_empty_password = 0; -char policy_add_prog_useradd = 0; +char policy_add_empty_password; +char policy_add_prog_useradd; char policy_guest = 1; -char policy_associate = 0; +char policy_associate; char pwcheck = 1; -char secure_home = 0; +char secure_home; gid_t user_gid = 400; char *user_shell = "/bin/bash"; @@ -445,8 +445,8 @@ int start_uid = 400; int end_uid = 65535; int paclen = ROSE_PACLEN; /* Its the shortest ie safest */ -int huffman = 0; -int bin = 0; +int huffman; +int bin; int fdmaster; struct write_queue { @@ -455,8 +455,8 @@ struct write_queue { unsigned int len; }; -struct write_queue *wqueue_head = NULL; -struct write_queue *wqueue_tail = NULL; +struct write_queue *wqueue_head; +struct write_queue *wqueue_tail; long wqueue_length = 0L; @@ -511,7 +511,7 @@ int Strncasecmp(const char *s1, const char *s2, int n) pid_t forkpty(int *, char *, void *, struct winsize *); /* The buffer in src (first byte length-1) is decoded into dest - (first byte length-1). If decoding is not successful, non-0 + (first byte length-1). If decoding is not successful, non-0 is returned */ @@ -524,14 +524,14 @@ int encstathuf(char *src, int srclen, char *dest, int *destlen) int bit8; unsigned short huffcode; int hufflen; - + if ((src == NULL) || (dest == NULL)) { syslog(LOG_NOTICE, "Huffman encode: src or dest NULL!"); - return(1); + return 1; } if (srclen > 255) { syslog(LOG_NOTICE, "Huffman encode: srclen > 255: %d", srclen); - return(1); + return 1; } srcptr = src; destptr = &dest[1]; @@ -554,7 +554,7 @@ int encstathuf(char *src, int srclen, char *dest, int *destlen) memcpy(&dest[1],src,srclen); dest[0] = 255; *destlen = srclen + 1; - return(0); + return 0; } bit8 = 0; *destptr = 0; @@ -572,11 +572,11 @@ int encstathuf(char *src, int srclen, char *dest, int *destlen) if (bit8 != 0) (*destlen)++; (*destlen)++; dest[0] = (char)(srclen-1); - return(0); + return 0; } /* The buffer in src (first byte length-1) is decoded into dest - (first byte length-1). If decoding is not successful, non-0 + (first byte length-1). If decoding is not successful, non-0 is returned */ @@ -590,24 +590,24 @@ int decstathuf(char *src, char *dest, int srclen, int *destlen) unsigned short decod; unsigned short newnode; - if ((src == NULL) || (dest == NULL)) return(1); + if ((src == NULL) || (dest == NULL)) return 1; srcptr = src; destptr = dest; *destlen = (int)((*srcptr)+1); srcptr++; if (--srclen == 0) { - return(1); + return 1; } if (*destlen == 0) { - return(1); + return 1; } if (*destlen == 256) { /* no compression, only copy */ memcpy(dest,src+1,srclen); *destlen = (unsigned char)(srclen); - return(0); + return 0; } wrklen = 0; decod = 0; @@ -641,10 +641,10 @@ int decstathuf(char *src, char *dest, int srclen, int *destlen) if (wrklen >= *destlen) break; bitmask = 0x80; srcptr++; - if (srclen == 0) return(1); + if (srclen == 0) return 1; srclen--; } - return(0); + return 0; } @@ -656,7 +656,7 @@ int _write_ax25(const char *s, int len) i = write(1, s, len); fflush(stdout); - return (i > 0 ? i : 0); /* on error, -1 is returned */ + return i > 0 ? i : 0; /* on error, -1 is returned */ } int read_ax25(unsigned char *s, int size) @@ -673,19 +673,19 @@ int read_ax25(unsigned char *s, int size) if (huffman) { if (!decstathuf(s, decomp, len, &declen)) { - *(decomp+declen) = 0; + *(decomp+declen) = 0; strcpy(s, decomp); len = declen; } } if (bin) { - return(len); + return len; } - + for (k = 0; k < len; k++) if (s[k] == '\r') s[k] = '\n'; - + if (!huffman && !Strncasecmp(s, "//COMP ON\n", 10)) { sprintf(buffer,"\r//COMP 1\r"); @@ -748,7 +748,7 @@ void kick_wqueue(int dummy) int bufsize = (huffman ? 256-1 : paclen); char decoded[260]; int declen; - + signal(SIGALRM, SIG_IGN); itv.it_value.tv_sec = 0; itv.it_value.tv_usec = QUEUE_DELAY; @@ -769,7 +769,7 @@ void kick_wqueue(int dummy) } p = s; s_len = 0; - + while ((w_buf = wqueue_head)) { curr_len = (w_buf->len > bufsize-s_len ? bufsize-s_len : w_buf->len); memcpy(p, w_buf->data, curr_len); @@ -778,7 +778,7 @@ void kick_wqueue(int dummy) if (w_buf->len > curr_len) { /* rewrite current buffer, and break */ w_buf->len -= curr_len; - for (q = w_buf->data, r = w_buf->data+curr_len, i = 0; i < w_buf->len; i++) + for (q = w_buf->data, r = w_buf->data+curr_len, i = 0; i < w_buf->len; i++) *q++ = *r++; break; } @@ -823,7 +823,7 @@ void kick_wqueue(int dummy) wqueue_head = w_buf->next; free(w_buf->data); free(w_buf); - + if (!wqueue_head) { wqueue_tail = NULL; return; @@ -835,7 +835,7 @@ void kick_wqueue(int dummy) * new data is available in order to send "full packets" */ if (wqueue_length < paclen) - break; + break; } itv.it_interval.tv_sec = 0; @@ -852,12 +852,12 @@ int write_ax25(char *s, int len, int kick) struct termios termios; static struct termios save_termios; static struct termios save_termios_master; - static int last_ended_with_CR = 0; + static int last_ended_with_CR; int i = 0; int j = 0; char *p; - + if (!len) return 0; signal(SIGALRM, SIG_IGN); @@ -881,7 +881,7 @@ int write_ax25(char *s, int len, int kick) bin = 1; kick_wqueue(0); return 0; - } + } if (bin && !strncmp(s, "//BIN OFF\r", 10)) { kick_wqueue(0); @@ -890,7 +890,7 @@ int write_ax25(char *s, int len, int kick) tcsetattr(0, TCSANOW, &save_termios); last_ended_with_CR = 0; return 0; - } + } if (!bin) { @@ -912,12 +912,12 @@ int write_ax25(char *s, int len, int kick) } while (j < len) { if ((j + 1 < len) && *(p + j) == '\r' && *(p + j + 1) == '\n') { - *(p + i) = '\r'; + *(p + i) = '\r'; j++; } else *(p + i) = *(p + j); - i++; j++; + i++; j++; } len = i; if (len && s[len-1] == '\r') @@ -937,8 +937,8 @@ int write_ax25(char *s, int len, int kick) memcpy(buf->data, s, len); buf->len = len; - buf->next = NULL; - + buf->next = NULL; + if (wqueue_head == NULL) { wqueue_head = buf; @@ -949,7 +949,7 @@ int write_ax25(char *s, int len, int kick) wqueue_tail = buf; wqueue_length += len; } - + if (wqueue_length > 7*paclen || kick || bin) { kick_wqueue(0); @@ -969,13 +969,13 @@ int get_assoc(struct sockaddr_ax25 *sax25) FILE *fp; int uid; char buf[81]; - + fp = fopen(PROC_AX25_CALLS_FILE, "r"); if (!fp) return -1; - + fgets(buf, sizeof(buf)-1, fp); - - while(!feof(fp)) + + while (!feof(fp)) { if (fscanf(fp, "%d %s", &uid, buf) == 2) if (sax25->sax25_uid == uid) @@ -986,7 +986,7 @@ int get_assoc(struct sockaddr_ax25 *sax25) } } fclose(fp); - + return -1; } @@ -1037,8 +1037,8 @@ void signal_handler_sigchild(int dummy) { exit(0); } - -/* + +/* * add a new user to /etc/passwd and do some init */ @@ -1058,7 +1058,7 @@ void new_user(char *newuser) struct stat fst; int fd_a, fd_b, fd_l; mode_t homedir_mode = S_IRUSR|S_IWUSR|S_IXUSR|S_IXOTH|(secure_home ? 0 : (S_IRGRP|S_IXGRP)); - + /* * build path for home directory */ @@ -1090,14 +1090,14 @@ retry: /* * build directories for home */ - + p = homedir; - + while (*p == '/') p++; chdir("/"); - while(p) + while (p) { q = strchr(p, '/'); if (q) @@ -1135,12 +1135,12 @@ retry: { chown(p, uid, user_gid); chmod(p, homedir_mode); - } + } } else goto out; } - + if (chdir(p) < 0) goto out; p = q; @@ -1156,16 +1156,16 @@ end_mkdirs: pid_t pid = -1; struct stat statbuf; if (!user_shell_configured && stat(USERADD_CONF, &statbuf) == -1) { - /* some programs need a shell explicitely specified - * in /etc/passwd, although this field is not required - * (and useradd does not set a shell when not - * specified). - * useradd has a config file. On debian for e.g., - * there is no /etc/default/useradd. Thus we - * explecitely give the shell option to useradd, when - * no useradd config file is present. - */ - user_shell_configured = 1; + /* some programs need a shell explicitely specified + * in /etc/passwd, although this field is not required + * (and useradd does not set a shell when not + * specified). + * useradd has a config file. On debian for e.g., + * there is no /etc/default/useradd. Thus we + * explecitely give the shell option to useradd, when + * no useradd config file is present. + */ + user_shell_configured = 1; } pid = fork(); @@ -1218,7 +1218,7 @@ end_mkdirs: fp = fopen(PASSWDFILE, "a+"); if (fp == NULL) goto out; - + pw.pw_name = newuser; pw.pw_passwd = ((policy_add_empty_password) ? "" : "+"); pw.pw_uid = uid; @@ -1226,12 +1226,12 @@ end_mkdirs: pw.pw_gecos = username; pw.pw_dir = userdir; pw.pw_shell = user_shell; - + if (getpwuid(uid) != NULL) goto retry; /* oops?! */ if (putpwent(&pw, fp) < 0) goto out; - + fclose(fp); } @@ -1241,7 +1241,7 @@ end_mkdirs: */ fd_a = open(CONF_AXSPAWN_PROF_FILE, O_RDONLY); - + if (fd_a > 0) { int first = 1; @@ -1249,7 +1249,7 @@ end_mkdirs: if (fd_b < 0) goto out; - + /* just 2b sure */ if (lseek(fd_b, 0L, SEEK_END) > 0L) write(fd_b, "\n", 1); @@ -1264,7 +1264,7 @@ end_mkdirs: * as an optimization. * -> mark #!... as ## */ - if (buf[0] == '#' && buf[1] == '!') + if (buf[0] == '#' && buf[1] == '!') buf[1] = '#'; first = 0; } @@ -1284,16 +1284,16 @@ void read_config(void) char buf[512]; char cmd[40], param[80]; char *p; - + if (fp == NULL) return; - + while (!feof(fp)) { fgets(buf, sizeof(buf), fp); if ((p = strchr(buf, '#')) || (p = strchr(buf, '\n'))) *p='\0'; - + if (buf[0] != '\0') { sscanf(buf, "%s %s", cmd, param); @@ -1359,12 +1359,12 @@ void read_config(void) } else if (!strncmp(cmd, "secure_home", 11)) { secure_home = (param[0] == 'y'); - } else + } else if (!strncmp(cmd, "assoc", 5)) { if (!strcmp(param, "yes")) policy_associate = 1; - else + else policy_associate = 0; } else if (!strncmp(cmd, "shell", 5)) @@ -1378,7 +1378,7 @@ void read_config(void) } } } - + fclose(fp); } @@ -1430,7 +1430,7 @@ int main(int argc, char **argv) digits = letters = invalid = ssid = ssidcnt = 0; - for (k = 1; k < argc; k++){ + for (k = 1; k < argc; k++) { if (!strcmp(argv[k], "-w") || !strcmp(argv[k], "--wait")) wait_for_tcp = 1; if (!strcmp(argv[k], "-c") || !strcmp(argv[k], "--changeuser")) @@ -1463,7 +1463,7 @@ int main(int argc, char **argv) } } strupr(prompt); - + openlog("axspawn", LOG_PID, LOG_DAEMON); if (getuid() != 0) { @@ -1474,34 +1474,34 @@ int main(int argc, char **argv) addrlen = sizeof(struct full_sockaddr_ax25); k = getpeername(0, (struct sockaddr *) &sockaddr, &addrlen); - + if (k < 0) { syslog(LOG_NOTICE, "getpeername: %m\n"); return 1; } switch (sockaddr.fsax25.fsa_ax25.sax25_family) { - case AF_AX25: - strcpy(call, ax25_ntoa(&sockaddr.fsax25.fsa_ax25.sax25_call)); - protocol = "AX.25"; - paclen = AX_PACLEN; - break; - - case AF_NETROM: - strcpy(call, ax25_ntoa(&sockaddr.fsax25.fsa_ax25.sax25_call)); - protocol = "NET/ROM"; - paclen = NETROM_PACLEN; - break; - - case AF_ROSE: - strcpy(call, ax25_ntoa(&sockaddr.rose.srose_call)); - protocol = "Rose"; - paclen = ROSE_PACLEN; - break; - - default: - syslog(LOG_NOTICE, "peer is not an AX.25, NET/ROM or Rose socket\n"); - return 1; + case AF_AX25: + strcpy(call, ax25_ntoa(&sockaddr.fsax25.fsa_ax25.sax25_call)); + protocol = "AX.25"; + paclen = AX_PACLEN; + break; + + case AF_NETROM: + strcpy(call, ax25_ntoa(&sockaddr.fsax25.fsa_ax25.sax25_call)); + protocol = "NET/ROM"; + paclen = NETROM_PACLEN; + break; + + case AF_ROSE: + strcpy(call, ax25_ntoa(&sockaddr.rose.srose_call)); + protocol = "Rose"; + paclen = ROSE_PACLEN; + break; + + default: + syslog(LOG_NOTICE, "peer is not an AX.25, NET/ROM or Rose socket\n"); + return 1; } for (k = 0; k < strlen(call); k++) @@ -1520,7 +1520,7 @@ int main(int argc, char **argv) { ssid *= 10; ssid += (int) (call[k] - '0'); - + if (ssid > 15) invalid++; } ssidcnt++; @@ -1544,7 +1544,7 @@ int main(int argc, char **argv) else invalid++; } - + if ( invalid || (k < MINLEN) || (digits > 2) || (digits < 1) ) { write_ax25_static_line(MSG_NOCALL); @@ -1552,7 +1552,7 @@ int main(int argc, char **argv) sleep(EXITDELAY); return 1; } - + if (wait_for_tcp) { /* incoming TCP/IP connection? */ if (read_ax25(buf, sizeof(buf)) < 0) @@ -1585,7 +1585,7 @@ int main(int argc, char **argv) user_changed = 1; } } - + if (!*as_user) strcpy(as_user, user); pw = getpwnam(as_user); @@ -1599,7 +1599,7 @@ int main(int argc, char **argv) return 1; } - if (policy_add_user) + if (policy_add_user) { new_user(as_user); pw = getpwnam(as_user); @@ -1610,7 +1610,7 @@ int main(int argc, char **argv) return 1; } } - + if (pw == NULL && policy_guest) { strcpy(as_user,guest); @@ -1625,7 +1625,7 @@ int main(int argc, char **argv) sleep(EXITDELAY); return 1; } - + if (!rootlogin && (pw->pw_uid == 0 || pw->pw_gid == 0)) { write_ax25_static_line(MSG_NOCALL); @@ -1633,7 +1633,7 @@ int main(int argc, char **argv) sleep(EXITDELAY); return 1; } - + again: if (!(pwd = read_pwd(pw, &pwtype))) { if ((!pwtype || pwtype != PW_CLEARTEXT) && (pwtype != PW_UNIX)) { @@ -1651,7 +1651,7 @@ again: if (pwtype == PW_MD5) ask_pw_md5(prompt, pass_want, pwd); else - ask_pw_sys(prompt, pass_want, pwd); + ask_pw_sys(prompt, pass_want, pwd); cnt = read_ax25(buf, sizeof(buf)-1); if (cnt <= 0) { @@ -1705,58 +1705,58 @@ again: if (get_assoc(&sax25) != -1) ioctl(fds, SIOCAX25DELUID, &sax25); switch (sockaddr.fsax25.fsa_ax25.sax25_family) { - case AF_AX25: - case AF_NETROM: - sax25.sax25_call = sockaddr.fsax25.fsa_ax25.sax25_call; - break; - case AF_ROSE: - sax25.sax25_call = sockaddr.rose.srose_call; - break; + case AF_AX25: + case AF_NETROM: + sax25.sax25_call = sockaddr.fsax25.fsa_ax25.sax25_call; + break; + case AF_ROSE: + sax25.sax25_call = sockaddr.rose.srose_call; + break; } ioctl(fds, SIOCAX25ADDUID, &sax25); close(fds); } } - + fcntl(1, F_SETFL, O_NONBLOCK); - + pid = forkpty(&fdmaster, ptyslave, NULL, &win); - + if (pid == 0) { struct termios termios; char *shell = "/bin/sh"; - memset((char *) &termios, 0, sizeof(termios)); - - ioctl(0, TIOCSCTTY, (char *) 0); + memset((char *) &termios, 0, sizeof(termios)); + + ioctl(0, TIOCSCTTY, (char *) 0); termios.c_iflag = ICRNL | IXOFF; - termios.c_oflag = OPOST | ONLCR; - termios.c_cflag = CS8 | CREAD | CLOCAL; - termios.c_lflag = ISIG | ICANON; - termios.c_cc[VINTR] = /* 127 */ 0x03; - termios.c_cc[VQUIT] = 28; - termios.c_cc[VERASE] = 8; - termios.c_cc[VKILL] = 24; - termios.c_cc[VEOF] = 4; - cfsetispeed(&termios, B19200); - cfsetospeed(&termios, B19200); - tcsetattr(0, TCSANOW, &termios); + termios.c_oflag = OPOST | ONLCR; + termios.c_cflag = CS8 | CREAD | CLOCAL; + termios.c_lflag = ISIG | ICANON; + termios.c_cc[VINTR] = /* 127 */ 0x03; + termios.c_cc[VQUIT] = 28; + termios.c_cc[VERASE] = 8; + termios.c_cc[VKILL] = 24; + termios.c_cc[VEOF] = 4; + cfsetispeed(&termios, B19200); + cfsetospeed(&termios, B19200); + tcsetattr(0, TCSANOW, &termios); setutent(); - ut_line.ut_type = LOGIN_PROCESS; - ut_line.ut_pid = getpid(); - strncpy(ut_line.ut_line, ptyslave + 5, sizeof(ut_line.ut_line)); - strncpy(ut_line.ut_id, ptyslave + 8, sizeof(ut_line.ut_id)); - strncpy(ut_line.ut_user, "LOGIN", sizeof(ut_line.ut_user)); - strncpy(ut_line.ut_host, protocol, sizeof(ut_line.ut_host)); + ut_line.ut_type = LOGIN_PROCESS; + ut_line.ut_pid = getpid(); + strncpy(ut_line.ut_line, ptyslave + 5, sizeof(ut_line.ut_line)); + strncpy(ut_line.ut_id, ptyslave + 8, sizeof(ut_line.ut_id)); + strncpy(ut_line.ut_user, "LOGIN", sizeof(ut_line.ut_user)); + strncpy(ut_line.ut_host, protocol, sizeof(ut_line.ut_host)); gettimeofday(&tv, NULL); ut_line.ut_tv.tv_sec = tv.tv_sec; ut_line.ut_tv.tv_usec = tv.tv_usec; - ut_line.ut_addr = 0; - pututline(&ut_line); - endutent(); + ut_line.ut_addr = 0; + pututline(&ut_line); + endutent(); /* become process group leader, if we not already are */ if (getpid() != getsid(0)) { @@ -1764,8 +1764,8 @@ again: exit(1); } - chargc = 0; - envc = 0; + chargc = 0; + envc = 0; if (dumb_embedded_system) { int ret = -1; @@ -1777,18 +1777,18 @@ again: ret = -1; if (pw->pw_dir && *(pw->pw_dir)) p = pw->pw_dir; - ret = chdir(p); + ret = chdir(p); if (ret != 0) { p = "/tmp"; - chdir(p); + chdir(p); } - if ((envp[envc] = (char *) malloc(strlen(p)+6))) - sprintf(envp[envc++], "HOME=%s", p); - if ((envp[envc] = (char *) malloc(strlen(pw->pw_name)+6))) - sprintf(envp[envc++], "USER=%s", pw->pw_name); - if ((envp[envc] = (char *) malloc(strlen(pw->pw_name)+9))) - sprintf(envp[envc++], "LOGNAME=%s", pw->pw_name); + if ((envp[envc] = (char *) malloc(strlen(p)+6))) + sprintf(envp[envc++], "HOME=%s", p); + if ((envp[envc] = (char *) malloc(strlen(pw->pw_name)+6))) + sprintf(envp[envc++], "USER=%s", pw->pw_name); + if ((envp[envc] = (char *) malloc(strlen(pw->pw_name)+9))) + sprintf(envp[envc++], "LOGNAME=%s", pw->pw_name); if (pw->pw_shell && *(pw->pw_shell)) { shell = pw->pw_shell; @@ -1799,61 +1799,61 @@ again: if (p[1]) { if ((p = strdup(p))) *p = '-'; - + } else p = 0; } if (!p) p = shell; - chargv[chargc++] = p; - if ((envp[envc] = (char *) malloc(strlen(shell)+7))) - sprintf(envp[envc++], "SHELL=%s", shell); + chargv[chargc++] = p; + if ((envp[envc] = (char *) malloc(strlen(shell)+7))) + sprintf(envp[envc++], "SHELL=%s", shell); if (pw->pw_uid == 0) p = "/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin"; else p = "/bin:/usr/bin:/usr/local/bin"; - if ((envp[envc] = (char *) malloc(strlen(p)+6))) - sprintf(envp[envc++], "PATH=%s", p); + if ((envp[envc] = (char *) malloc(strlen(p)+6))) + sprintf(envp[envc++], "PATH=%s", p); } else { - chargv[chargc++] = "/bin/login"; - chargv[chargc++] = "-p"; + chargv[chargc++] = "/bin/login"; + chargv[chargc++] = "-p"; /* there exist several conectps: - * Historicaly, the special character '+' in the password - * field indicated that users may login via ax25, netrom, rose, - * etc.. - but not via other protocols like telnet. - * This secures the digipeater from abuse by inet access of - * non-hams. - * On the other hand, this leads to the problem that telent - * via HF, pop3, etc.. do not work. - * The "pwcheck == 2 method means, that the password is used on - * every login mechanism other than this axspawn program; - * here we do not rely on the password - the ax25 call of - * the ham is enough. We have already checked above, that - * the call of the user is valid (and not root, httpd, etc..); - * thus this method is safe here. - * Another mechanism (pwcheck == 3) is to check if the gid - * equals to user_gid preference. I prefer this way, because - * this approach gives the chance to temporary lock a user - * out (abuse, ..) by changing his gid in passwd to for e.g. - * 65534 (nogroup). - */ + * Historicaly, the special character '+' in the password + * field indicated that users may login via ax25, netrom, rose, + * etc.. - but not via other protocols like telnet. + * This secures the digipeater from abuse by inet access of + * non-hams. + * On the other hand, this leads to the problem that telent + * via HF, pop3, etc.. do not work. + * The "pwcheck == 2 method means, that the password is used on + * every login mechanism other than this axspawn program; + * here we do not rely on the password - the ax25 call of + * the ham is enough. We have already checked above, that + * the call of the user is valid (and not root, httpd, etc..); + * thus this method is safe here. + * Another mechanism (pwcheck == 3) is to check if the gid + * equals to user_gid preference. I prefer this way, because + * this approach gives the chance to temporary lock a user + * out (abuse, ..) by changing his gid in passwd to for e.g. + * 65534 (nogroup). + */ chargv[chargc++] = "-h"; chargv[chargc++] = protocol; - if (pwtype != PW_CLEARTEXT /* PW_SYS or PW_MD5 are already authenticated */ + if (pwtype != PW_CLEARTEXT /* PW_SYS or PW_MD5 are already authenticated */ || pwcheck == 2 || (pwcheck == 3 && (pw->pw_gid == user_gid || is_guest)) || !strcmp(pw->pw_passwd, "+")) - chargv[chargc++] = "-f"; - chargv[chargc++] = as_user; + chargv[chargc++] = "-f"; + chargv[chargc++] = as_user; } - chargv[chargc] = NULL; - - if ((envp[envc] = (char *) malloc(30))) - sprintf(envp[envc++], "AXCALL=%s", call); - if ((envp[envc] = (char *) malloc(30))) - sprintf(envp[envc++], "CALL=%s", user); - if ((envp[envc] = (char *) malloc(30))) - sprintf(envp[envc++], "PROTOCOL=%s", protocol); + chargv[chargc] = NULL; + + if ((envp[envc] = (char *) malloc(30))) + sprintf(envp[envc++], "AXCALL=%s", call); + if ((envp[envc] = (char *) malloc(30))) + sprintf(envp[envc++], "CALL=%s", user); + if ((envp[envc] = (char *) malloc(30))) + sprintf(envp[envc++], "PROTOCOL=%s", protocol); if ((envp[envc] = (char *) malloc(30))) sprintf(envp[envc++], "TERM=dumb"); /* SuSE bug (dump - tsts) */ /* other useful defaults */ @@ -1868,51 +1868,51 @@ again: exit(1); if (setuid(pw->pw_uid) == -1) exit(1); - execve(shell, chargv, envp); + execve(shell, chargv, envp); /* point of no return */ exit(1); } - execve(chargv[0], chargv, envp); + execve(chargv[0], chargv, envp); /* point of no return */ exit(1); - } - else if (pid > 0) - { - child_pid = 0; - signal(SIGHUP, signal_handler); - signal(SIGTERM, signal_handler); - signal(SIGINT, signal_handler); - signal(SIGQUIT, signal_handler); - - while(1) - { - FD_ZERO(&fds_read); - FD_ZERO(&fds_err); - FD_SET(0, &fds_read); - FD_SET(0, &fds_err); - if (wqueue_length <= paclen*7) + } + else if (pid > 0) + { + child_pid = 0; + signal(SIGHUP, signal_handler); + signal(SIGTERM, signal_handler); + signal(SIGINT, signal_handler); + signal(SIGQUIT, signal_handler); + + while (1) + { + FD_ZERO(&fds_read); + FD_ZERO(&fds_err); + FD_SET(0, &fds_read); + FD_SET(0, &fds_err); + if (wqueue_length <= paclen*7) FD_SET(fdmaster, &fds_read); - FD_SET(fdmaster, &fds_err); - - k = select(fdmaster+1, &fds_read, NULL, &fds_err, NULL); - - if (k > 0) - { - if (FD_ISSET(0, &fds_err)) - { + FD_SET(fdmaster, &fds_err); + + k = select(fdmaster+1, &fds_read, NULL, &fds_err, NULL); + + if (k > 0) + { + if (FD_ISSET(0, &fds_err)) + { if (huffman) { sprintf(buf,"\r//COMP 0\r"); write_ax25(buf, strlen(buf), 1); sleep(EXITDELAY); - } - kill(pid, SIGHUP); - cleanup(ptyslave+5); - return 1; - } - - if (FD_ISSET(fdmaster, &fds_err)) - { + } + kill(pid, SIGHUP); + cleanup(ptyslave+5); + return 1; + } + + if (FD_ISSET(fdmaster, &fds_err)) + { /* give the last packet in the timer controlled sendqueue a chance.. */ if (wqueue_length) { continue; @@ -1921,28 +1921,28 @@ again: sprintf(buf,"\r//COMP 0\r"); write_ax25(buf, strlen(buf), 1); sleep(EXITDELAY); - } - cleanup(ptyslave+5); - return 1; - } - - if (FD_ISSET(0, &fds_read)) - { - cnt = read_ax25(buf, sizeof(buf)); - if (cnt < 0) /* Connection died */ - { - kill(pid, SIGHUP); - cleanup(ptyslave+5); - return 1; - } else - write(fdmaster, buf, cnt); - } - - if (FD_ISSET(fdmaster, &fds_read)) - { - cnt = read(fdmaster, buf, (huffman ? 254 : sizeof(buf))); - if (cnt < 0) - { + } + cleanup(ptyslave+5); + return 1; + } + + if (FD_ISSET(0, &fds_read)) + { + cnt = read_ax25(buf, sizeof(buf)); + if (cnt < 0) /* Connection died */ + { + kill(pid, SIGHUP); + cleanup(ptyslave+5); + return 1; + } else + write(fdmaster, buf, cnt); + } + + if (FD_ISSET(fdmaster, &fds_read)) + { + cnt = read(fdmaster, buf, (huffman ? 254 : sizeof(buf))); + if (cnt < 0) + { /* give the last packet in the timer controlled sendqueue a chance.. */ if (wqueue_length) { continue; @@ -1951,36 +1951,36 @@ again: sprintf(buf,"\r//COMP 0\r"); write_ax25(buf, strlen(buf), 1); sleep(EXITDELAY); - } - cleanup(ptyslave+5); - return 1; /* Child died */ - } - write_ax25(buf, cnt, 0); - } - } else - if (k < 0 && errno != EINTR) - { + } + cleanup(ptyslave+5); + return 1; /* Child died */ + } + write_ax25(buf, cnt, 0); + } + } else + if (k < 0 && errno != EINTR) + { if (huffman) { sprintf(buf,"\r//COMP 0\r"); write_ax25(buf, strlen(buf), 1); sleep(EXITDELAY); - } - - kill(pid, SIGHUP); /* just in case... */ - cleanup(ptyslave+5); - return 0; - } - } - } - else - { + } + + kill(pid, SIGHUP); /* just in case... */ + cleanup(ptyslave+5); + return 0; + } + } + } + else + { write_ax25_static_line(MSG_CANNOTFORK); - syslog(LOG_ERR, "cannot fork %m, closing connection to %s\n", call); - sleep(EXITDELAY); - return 1; - } - - sleep(EXITDELAY); + syslog(LOG_ERR, "cannot fork %m, closing connection to %s\n", call); + sleep(EXITDELAY); + return 1; + } + + sleep(EXITDELAY); return 0; } |