{"id":277690,"date":"2021-01-13T16:46:26","date_gmt":"2021-01-13T08:46:26","guid":{"rendered":"http:\/\/4563.org\/?p=277690"},"modified":"2021-01-13T16:46:26","modified_gmt":"2021-01-13T08:46:26","slug":"%e4%ba%8c%e8%bf%9b%e5%88%b6%e6%96%87%e4%bb%b6%e8%af%bb%e5%8f%96%ef%bc%9a%e6%9c%89%e6%b2%a1%e6%9c%89%e7%ae%80%e5%8d%95%e6%96%b9%e6%b3%95%e6%8c%89%e8%a7%84%e5%88%99%e8%a7%a3%e7%a0%81%e4%ba%8c%e8%bf%9b","status":"publish","type":"post","link":"http:\/\/4563.org\/?p=277690","title":{"rendered":"\u4e8c\u8fdb\u5236\u6587\u4ef6\u8bfb\u53d6\uff1a\u6709\u6ca1\u6709\u7b80\u5355\u65b9\u6cd5\u6309\u89c4\u5219\u89e3\u7801\u4e8c\u8fdb\u5236"},"content":{"rendered":"<div>\n<div>\n<div>\n<h1>                  \u4e8c\u8fdb\u5236\u6587\u4ef6\u8bfb\u53d6\uff1a\u6709\u6ca1\u6709\u7b80\u5355\u65b9\u6cd5\u6309\u89c4\u5219\u89e3\u7801\u4e8c\u8fdb\u5236               <\/h1>\n<p> <\/p>\n<div>\n<div> <span>\u8cc7\u6df1\u5927\u4f6c : leiuu <\/span>  <span><i><\/i> 0<\/span> <\/div>\n<div> <\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n<div isfirst=\"1\"> <\/p>\n<p>\u5047\u8bbe\u6709\u4e8c\u8fdb\u5236\u6587\u4ef6 a.bin \uff0c\u524d 10 \u4e2a\u5b57\u8282\u5982\u4e0b\uff08\u4f7f\u7528 16 \u8fdb\u5236\u663e\u793a\uff0c\u539f\u59cb\u6570\u636e\u4f7f\u7528\u5c0f\u7aef\u6a21\u5f0f\uff09\uff1a<\/p>\n<p>39 00 00 00 12 3F 6F 5A A7 04<\/p>\n<p>\u5e0c\u671b\u8fd9\u6837\u8bfb\u53d6\uff1a<\/p>\n<ol>\n<li>\n<p>39 00 00 00 -&gt; \u7b2c 1-4 \u4e2a\u5b57\u8282\u8f6c\u4e3a int , 0x00000039 = 57<\/p>\n<\/li>\n<li>\n<p>12 3F -&gt; 5-6 \u4e2a\u5b57\u8282\u8f6c\u4e3a int , 0x3F12 = 16146<\/p>\n<\/li>\n<li>\n<p>6F 5A A7 04 -&gt; 7-10 \u4e2a\u5b57\u8282\u8f6c\u4e3a int , 0x045AA76F = 73049967<\/p>\n<\/li>\n<\/ol>\n<p>\u6587\u4ef6\u5269\u4f59\u90e8\u5206\u4e5f\u662f\u8fd9\u4e2a\u683c\u5f0f\uff0c\u5e0c\u671b\u53ef\u4ee5\u6bcf 10 \u4e2a\u5b57\u8282\uff0c\u8f93\u51fa\u4e00\u884c\u6570\u636e\uff0c\u6bcf\u884c 3 \u4e2a\u6570\uff0c\u5e76\u7528\u7a7a\u683c\u95f4\u9694\u3002<\/p>\n<p>\u73b0\u5728\u7684\u5904\u7406\u65b9\u6cd5\uff1a input:<\/p>\n<pre><code>echo $(od -An -t dI -j 0 -N 4 a.bin  &amp;&amp;  od -An -t dI -j 4 -N 2 a.bin &amp;&amp; od -An -t dI -j 6 -N 4 a.bin) <\/code><\/pre>\n<p>output:<\/p>\n<pre><code>57 16146 78076527 <\/code><\/pre>\n<p>\u6709\u4e9b\u9ebb\u70e6\uff0c\u6709\u6ca1\u6709\u66f4\u597d\u7684\u65b9\u6cd5\u5462\u3002<\/p>\n<\/p><\/div>\n<div> <b>\u5927\u4f6c\u6709\u8a71\u8aaa<\/b> (<span>5<\/span>)        <\/div>\n<div> <\/div>\n<\/p><\/div>\n<\/p><\/div>\n<ul>\n<li data-pid=\"4923474\" data-uid=\"2\">\n<div>\n<div>\n<div> <span>\u8cc7\u6df1\u5927\u4f6c : crclz <\/span>  <\/div>\n<div> <i title=\"\u5f15\u7528\"><\/i>  <span>          <\/span> <\/div>\n<\/p><\/div>\n<div>                                                             https:\/\/gist.github.com\/crclz\/8da1ff89b00575604eb3493e15abe76a <button onclick=\"lazyGist(this)\">\u00a0\u663e\u793a Gist \u4ee3\u7801\u00a0<\/button> <\/div>\n<\/p><\/div>\n<\/li>\n<li data-pid=\"4923475\" data-uid=\"2\">\n<div>\n<div>\n<div> <span>\u8cc7\u6df1\u5927\u4f6c : skinny <\/span>  <\/div>\n<div> <i title=\"\u5f15\u7528\"><\/i>  <span>          <\/span> <\/div>\n<\/p><\/div>\n<div>                                                             struct.unpack                                                            <\/div>\n<\/p><\/div>\n<\/li>\n<li data-pid=\"4923476\" data-uid=\"2\">\n<div>\n<div>\n<div> <span>\u8cc7\u6df1\u5927\u4f6c : msg7086 <\/span>  <\/div>\n<div> <i title=\"\u5f15\u7528\"><\/i>  <span>          <\/span> <\/div>\n<\/p><\/div>\n<div>                                                             \u9047\u4e8b\u4e0d\u51b3 unpack\uff0c\u5f88\u591a\u8bed\u8a00\u91cc\u90fd\u6709\u7684\u5de5\u5177\u3002                                                            <\/div>\n<\/p><\/div>\n<\/li>\n<li data-pid=\"4923477\" data-uid=\"2\">\n<div>\n<div>\n<div> <span>\u8cc7\u6df1\u5927\u4f6c : faketemp <\/span>  <\/div>\n<div> <i title=\"\u5f15\u7528\"><\/i>  <span>          <\/span> <\/div>\n<\/p><\/div>\n<div>                                                             python <br \/>https:\/\/pypi.org\/project\/bitstring\/ <br \/>https:\/\/docs.python.org\/3\/library\/struct.html                                                            <\/div>\n<\/p><\/div>\n<\/li>\n<li data-pid=\"4923478\" data-uid=\"2\">\n<div>\n<div>\n<div> <span>\u4e3b<\/span> <span>\u8cc7\u6df1\u5927\u4f6c : leiuu <\/span>  <\/div>\n<div> <i title=\"\u5f15\u7528\"><\/i>  <span>          <\/span> <\/div>\n<\/p><\/div>\n<div>                                                             @crclz \u8c22\u8c22 \u8001\u54e5 \u4ee3\u7801\u7b80\u5355\u6e05\u6670 \u5b66\u5230\u4e86 \uff5e<\/p>\n<p>@skinny <br \/>@msg7086 <br \/>@faketemp <br \/>unpack \u7cbe\u786e\u7684\u89e3\u51b3\u4e86\u6211\u5bf9\u8fd9\u4e2a\u6982\u5ff5\u7684\u76f2\u70b9                                                            <\/div>\n<\/p><\/div>\n<\/li>\n<li>\n","protected":false},"excerpt":{"rendered":"<p>\u4e8c\u8fdb\u5236\u6587\u4ef6\u8bfb\u53d6\uff1a\u6709\u6ca1\u6709\u7b80\u5355\u65b9\u6cd5\u6309\u89c4&hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[],"tags":[],"_links":{"self":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/277690"}],"collection":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=277690"}],"version-history":[{"count":0,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/277690\/revisions"}],"wp:attachment":[{"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=277690"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=277690"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=277690"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}