[1998] | 1 | //slp.c: |
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| 2 | |
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| 3 | /* |
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[2002] | 4 | * Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2009 |
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[1998] | 5 | * |
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| 6 | * This file is part of libroar a part of RoarAudio, |
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| 7 | * a cross-platform sound system for both, home and professional use. |
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| 8 | * See README for details. |
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| 9 | * |
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| 10 | * This file is free software; you can redistribute it and/or modify |
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| 11 | * it under the terms of the GNU General Public License version 3 |
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| 12 | * as published by the Free Software Foundation. |
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| 13 | * |
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| 14 | * libroar is distributed in the hope that it will be useful, |
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| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 17 | * GNU General Public License for more details. |
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| 18 | * |
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| 19 | * You should have received a copy of the GNU General Public License |
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| 20 | * along with this software; see the file COPYING. If not, write to |
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| 21 | * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. |
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| 22 | * |
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| 23 | * NOTE for everyone want's to change something and send patches: |
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| 24 | * read README and HACKING! There a addition information on |
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| 25 | * the license of this document you need to read before you send |
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| 26 | * any patches. |
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| 27 | * |
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| 28 | * NOTE for uses of non-GPL (LGPL,...) software using libesd, libartsc |
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| 29 | * or libpulse*: |
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| 30 | * The libs libroaresd, libroararts and libroarpulse link this lib |
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| 31 | * and are therefore GPL. Because of this it may be illigal to use |
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| 32 | * them with any software that uses libesd, libartsc or libpulse*. |
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| 33 | */ |
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| 34 | |
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| 35 | #include "libroar.h" |
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| 36 | |
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[2004] | 37 | SLPBoolean roar_slp_url_callback(SLPHandle hslp, |
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| 38 | const char * srvurl, |
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| 39 | unsigned short lifetime, |
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| 40 | SLPError errcode, |
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[2005] | 41 | void * cookie) { |
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| 42 | struct roar_slp_cookie * self = cookie; |
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| 43 | |
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| 44 | if (errcode == SLP_OK || errcode == SLP_LAST_CALL) { |
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| 45 | *(SLPError*)cookie = SLP_OK; |
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| 46 | |
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| 47 | if ( self->matchcount == ROAR_SLP_MAX_MATCHES ) |
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| 48 | return SLP_FALSE; |
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| 49 | |
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| 50 | strncpy(self->match[self->matchcount++].url, srvurl, ROAR_SLP_MAX_URL_LEN); |
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| 51 | |
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| 52 | self->match[self->matchcount].url[ROAR_SLP_MAX_URL_LEN-1] = 0; |
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| 53 | } else { |
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| 54 | *(SLPError*)cookie = errcode; |
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| 55 | } |
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| 56 | |
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| 57 | /* return SLP_TRUE because we want to be called again */ |
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| 58 | /* if more services were found */ |
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| 59 | |
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| 60 | return SLP_TRUE; |
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| 61 | } |
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[2004] | 62 | |
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| 63 | int roar_slp_search (struct roar_slp_cookie * cookie, char * type) { |
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| 64 | #ifdef ROAR_HAVE_LIBSLP |
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| 65 | SLPError err; |
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| 66 | SLPError callbackerr; |
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| 67 | SLPHandle hslp; |
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| 68 | |
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| 69 | if ( cookie->search != NULL ) /* currently only non-search filter mode supported */ |
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| 70 | return -1; |
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| 71 | |
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| 72 | err = SLPOpen("en", SLP_FALSE, &hslp); |
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| 73 | if (err != SLP_OK) { |
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| 74 | return -1; |
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| 75 | } |
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| 76 | |
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| 77 | err = SLPFindSrvs(hslp, |
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| 78 | type, |
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| 79 | 0, /* use configured scopes */ |
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| 80 | 0, /* no attr filter */ |
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| 81 | roar_slp_url_callback, |
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| 82 | &callbackerr); |
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| 83 | |
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| 84 | /* err may contain an error code that occurred as the slp library */ |
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| 85 | /* _prepared_ to make the call. */ |
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| 86 | if(err != SLP_OK) { |
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| 87 | return -1; |
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| 88 | } |
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| 89 | |
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| 90 | /* callbackerr may contain an error code (that was assigned through */ |
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| 91 | /* the callback cookie) that occurred as slp packets were sent on */ |
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| 92 | /* the wire */ |
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| 93 | if (callbackerr != SLP_OK) { |
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| 94 | return -1; |
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| 95 | } |
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| 96 | |
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| 97 | /* Now that we're done using slp, close the slp handle */ |
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| 98 | SLPClose(hslp); |
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| 99 | |
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| 100 | return -1; |
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| 101 | #else |
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| 102 | return -1; |
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| 103 | #endif |
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| 104 | } |
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| 105 | |
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| 106 | int roar_slp_cookie_init (struct roar_slp_cookie * cookie, struct roar_slp_search * search) { |
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| 107 | if ( cookie == NULL ) |
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| 108 | return -1; |
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| 109 | |
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| 110 | memset(cookie, 0, sizeof(struct roar_slp_cookie)); |
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| 111 | |
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| 112 | cookie->search = search; |
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| 113 | |
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| 114 | return 0; |
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| 115 | } |
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| 116 | |
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| 117 | |
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[2002] | 118 | char * roar_slp_find_roard (void) { |
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| 119 | static char addr[80]; |
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| 120 | |
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| 121 | if ( roar_slp_find_roard_r(addr, 80) == -1 ) |
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| 122 | return NULL; |
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| 123 | |
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| 124 | return addr; |
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| 125 | } |
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| 126 | |
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| 127 | int roar_slp_find_roard_r (char * addr, size_t len) { |
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[2004] | 128 | struct roar_slp_cookie cookie; |
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| 129 | |
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| 130 | if ( addr == NULL || len == 0 ) |
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| 131 | return -1; |
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| 132 | |
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| 133 | *addr = 0; // just in case... |
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| 134 | |
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| 135 | if ( roar_slp_cookie_init(&cookie, NULL) == -1 ) |
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| 136 | return -1; |
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| 137 | |
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| 138 | if ( roar_slp_search(&cookie, "service:mixer.fellig:roar") == -1 ) |
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| 139 | return -1; |
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| 140 | |
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| 141 | if ( cookie.matchcount == 0 ) |
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| 142 | return -1; |
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| 143 | |
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| 144 | strncpy(addr, cookie.match[0].url, len); |
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| 145 | addr[len-1] = 0; // also just in case. |
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| 146 | |
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| 147 | return 0; |
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[2002] | 148 | } |
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| 149 | |
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[1998] | 150 | //ll |
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