{"id":68714,"date":"2023-05-13T21:21:46","date_gmt":"2023-05-13T13:21:46","guid":{"rendered":"http:\/\/www.idc.net\/help\/68714\/"},"modified":"2023-05-13T21:21:46","modified_gmt":"2023-05-13T13:21:46","slug":"%e5%90%8d%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8linux-c%e8%af%ad%e8%a8%80%e8%8e%b7%e5%8f%96%e7%bd%91%e5%8d%a1%e5%90%8d%e7%a7%b0%ef%bc%88linuxc%e8%8e%b7%e5%8f%96%e7%bd%91%e5%8d%a1%ef%bc%89","status":"publish","type":"post","link":"https:\/\/idc.net\/help\/68714\/","title":{"rendered":"\u540d\u5982\u4f55\u4f7f\u7528Linux C\u8bed\u8a00\u83b7\u53d6\u7f51\u5361\u540d\u79f0\uff08linuxc\u83b7\u53d6\u7f51\u5361\uff09"},"content":{"rendered":"<p>Linux\u5177\u6709\u8bb8\u591a\u5f3a\u5927\u7684\u529f\u80fd\uff0c\u4f46\u4e3a\u4e86\u8ba9\u5b83\u7684\u80fd\u529b\u53d1\u6325\u51fa\u6765\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528C\u8bed\u8a00\u4ece\u4e2d\u53d7\u76ca\uff0c\u6211\u4eec\u6765\u4eceLinux C \u4e2d\u5b66\u4e60\u5982\u4f55\u83b7\u53d6\u7f51\u5361\u540d\u79f0\u3002<\/p>\n<\/p>\n<p>\u8981\u83b7\u53d6\u7f51\u5361\u540d\u79f0\uff0c\u60a8\u9700\u8981\u4f7f\u7528Linux C\u6216C ++\u7f16\u7a0b\u63a5\u53e3\uff08API\uff09\u3002\u6700\u91cd\u8981\u7684API\u662fstruct sockaddr_in\uff0c\u5b83\u5b9a\u4e49\u4e86\u7f51\u5361\u7684\u5730\u5740\u7c7b\u578b\u3002\u6211\u4eec\u9996\u5148\u9700\u8981\u4f7f\u7528socket\u51fd\u6570\u6765\u5efa\u7acb\u8fde\u63a5\u3002\u5bf9\u4e8e\u6211\u4eec\u7684\u4f8b\u5b50\uff0c\u6211\u4eec\u53ef\u4ee5\u8fd9\u6837\u505a\uff1a<\/p>\n<\/p>\n<p>struct sockaddr_in addr; <\/p>\n<p>int fd = socket(AF_INET, SOCK_STREAM, 0); <\/p>\n<\/p>\n<p>\u5176\u6b21\uff0c\u6211\u4eec\u9700\u8981\u4f7f\u7528ioctl\u6765\u83b7\u53d6\u7f51\u5361\u540d\u79f0\uff0c\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n<\/p>\n<p>struct ifreq if_data; <\/p>\n<p>strcpy(if_data. ifr_name, \u201ceth0\u201d);<\/p>\n<p>ioctl(fd, SIOCGIFADDR, &amp;if_data);<\/p>\n<\/p>\n<p>\u6700\u540e\uff0c\u6211\u4eec\u9700\u8981\u4f7f\u7528ioctl\u51fd\u6570\u6765\u68c0\u7d22\u6709\u5173\u7f51\u5361\u7684\u4fe1\u606f\uff0c\u7279\u522b\u662f\u7f51\u5361\u7684\u5730\u5740\u3002\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\uff1a<\/p>\n<\/p>\n<p>struct ifreq ifr_ip;<\/p>\n<p>ioctl(fd, SIOCGIFADDR, &amp;ifr_ip);<\/p>\n<\/p>\n<p>\u73b0\u5728\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\u5c06\u7f51\u5361\u540d\u79f0\u4ece\u7ed3\u6784\u4f53\u4e2d\u53d6\u51fa\uff1a<\/p>\n<\/p>\n<p>printf(\u201cNetwork card name: %s \\n\u201d, if_data.ifr_name);<\/p>\n<\/p>\n<p>\u8fd9\u5c31\u662f\u5982\u4f55\u4f7f\u7528Linux C\u8bed\u8a00\u83b7\u53d6\u7f51\u5361\u540d\u79f0\u7684\u8fc7\u7a0b\u3002\u672c\u6765\uff0c\u8981\u60f3\u83b7\u53d6\u7f51\u5361\u540d\u79f0\uff0c\u6211\u4eec\u9700\u8981\u7528\u5230\u7c7b\u4f3cifconfig\u547d\u4ee4\uff0c\u4f46\u4f7f\u7528C\u8bed\u8a00\u80fd\u6548\u679c\u66f4\u597d\u3002\u6b64\u5916,\u4f7f\u7528C\u8bed\u8a00\u4e5f\u53ef\u4ee5\u8bbf\u95ee\u66f4\u591a\u7684\u7cfb\u7edf\u8d44\u6e90\uff0c\u901a\u5e38\u53ef\u4ee5\u5927\u5927\u63d0\u9ad8\u7a0b\u5e8f\u7684\u6027\u80fd\u548c\u6548\u7387<\/p>\n<p><a href=\"http:https:\/\/idc.net\/\">\u9999\u6e2f\u670d\u52a1\u5668<\/a>\u9996\u9009\u540e\u6d6a\u4e91\uff0c2H2G\u9996\u670810\u5143\u5f00\u901a\u3002<br \/>\u540e\u6d6a\u4e91\uff08www.IDC.Net\uff09\u63d0\u4f9b\u7b80\u5355\u597d\u7528\uff0c\u4ef7\u683c\u539a\u9053\u7684\u9999\u6e2f\/\u7f8e\u56fd\u4e91\u670d\u52a1\u5668\u548c\u72ec\u7acb\u670d\u52a1\u5668\u3002IDC+ISP+ICP\u8d44\u8d28\u3002ARIN\u548cAPNIC\u4f1a\u5458\u3002\u6210\u719f\u6280\u672f\u56e2\u961f15\u5e74\u884c\u4e1a\u7ecf\u9a8c\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Linux\u5177\u6709\u8bb8\u591a\u5f3a\u5927\u7684\u529f\u80fd\uff0c\u4f46\u4e3a\u4e86\u8ba9\u5b83\u7684\u80fd\u529b\u53d1\u6325\u51fa\u6765\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528C\u8bed\u8a00\u4ece\u4e2d\u53d7\u76ca\uff0c\u6211\u4eec\u6765\u4eceLinux C \u4e2d [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[34],"tags":[],"class_list":["post-68714","post","type-post","status-publish","format-standard","hentry","category-linux"],"_links":{"self":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts\/68714","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/comments?post=68714"}],"version-history":[{"count":0,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts\/68714\/revisions"}],"wp:attachment":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/media?parent=68714"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/categories?post=68714"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/tags?post=68714"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}