pcap_nameindex.c.html 4.4 KB

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  21. /*====================================================================*
  22. *
  23. * Copyright (c) 2013 Qualcomm Atheros, Inc.
  24. *
  25. * All rights reserved.
  26. *
  27. * Redistribution and use in source and binary forms, with or
  28. * without modification, are permitted (subject to the limitations
  29. * in the disclaimer below) provided that the following conditions
  30. * are met:
  31. *
  32. * * Redistributions of source code must retain the above copyright
  33. * notice, this list of conditions and the following disclaimer.
  34. *
  35. * * Redistributions in binary form must reproduce the above
  36. * copyright notice, this list of conditions and the following
  37. * disclaimer in the documentation and/or other materials
  38. * provided with the distribution.
  39. *
  40. * * Neither the name of Qualcomm Atheros nor the names of
  41. * its contributors may be used to endorse or promote products
  42. * derived from this software without specific prior written
  43. * permission.
  44. *
  45. * NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE
  46. * GRANTED BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE
  47. * COPYRIGHT HOLDERS AND CONTRIBUTORS &quot;AS IS&quot; AND ANY EXPRESS OR
  48. * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  49. * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  50. * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
  51. * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  52. * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  53. * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  54. * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  55. * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  56. * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
  57. * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  58. * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  59. *
  60. *--------------------------------------------------------------------*/
  61. /*====================================================================*
  62. *
  63. * struct if_nameindex * pcap_nameindex (void)
  64. *
  65. * ether.h
  66. *
  67. * a WinPcap version of POSIX if_nameindex function; return error
  68. * in non-pcap environments;
  69. *
  70. * see The Open Group Base Specifications Issue 6 IEEE Std 1003.1,
  71. * 2004 Edition for a description of this function;
  72. *
  73. *
  74. *--------------------------------------------------------------------*/
  75. #ifndef PCAP_NAMEINDEX_SOURCE
  76. #define PCAP_NAMEINDEX_SOURCE
  77. #include &lt;pcap.h&gt;
  78. #include &lt;string.h&gt;
  79. #include &lt;stdlib.h&gt;
  80. #include &quot;../ether/ether.h&quot;
  81. struct if_nameindex * pcap_nameindex (void)
  82. {
  83. #if defined (WINPCAP) || defined (LIBPCAP)
  84. char buffer [PCAP_ERRBUF_SIZE];
  85. pcap_if_t * devices = (pcap_if_t *)(0);
  86. pcap_if_t * device;
  87. if (pcap_findalldevs (&amp;devices, buffer) != -1)
  88. {
  89. struct if_nameindex * ifs;
  90. struct if_nameindex * ifp;
  91. unsigned count = 1;
  92. for (device = devices; device; device = device-&gt;next)
  93. {
  94. count++;
  95. }
  96. ifp = ifs = (struct if_nameindex *)(malloc (count * sizeof (struct if_nameindex)));
  97. if (ifs) for (device = devices; device; device = device-&gt;next)
  98. {
  99. ifp-&gt;if_index = device-&gt;index;
  100. ifp-&gt;if_name = strdup (device-&gt;name);
  101. ifp++;
  102. }
  103. memset (ifp, 0, sizeof (* ifp));
  104. pcap_freealldevs (devices);
  105. return (ifs);
  106. }
  107. #endif
  108. return ((struct if_nameindex *)(0));
  109. }
  110. #endif
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