{"id":58,"date":"2008-10-19T16:46:26","date_gmt":"2008-10-19T16:46:26","guid":{"rendered":"http:\/\/kumouse.aafox.com\/?p=58"},"modified":"2008-10-19T16:46:26","modified_gmt":"2008-10-19T16:46:26","slug":"%e5%85%b6%e5%ae%83%e5%86%85%e5%ad%98%e7%ae%a1%e7%90%86%e5%87%bd%e6%95%b0","status":"publish","type":"post","link":"https:\/\/www.kumouse.com\/?p=58","title":{"rendered":"\u5176\u5b83\u5185\u5b58\u7ba1\u7406\u51fd\u6570"},"content":{"rendered":"<p>1.\u586b\u5145\u548c\u79fb\u52a8\u5185\u5b58<\/p>\n<blockquote><p>mov esi,offset szSource<br \/>mov edi,offset szDest<br \/>mov ecx,dwSize<br \/>cld<br \/>rep movsb<\/p><\/blockquote>\n<p>\u4ee5\u4e0a\u4ee3\u7801\u5b9e\u73b0\u4eceszSource\u5f00\u59cb\u7684dwSize\u5927\u5c0f\u7684\u5185\u5b58\u5757\u79fb\u52a8\u5230szDest\u5904<\/p>\n<blockquote><p>xor eax,eax<br \/>mov edi,offset szDest<br \/>mov ecx,dwSize<br \/>cld<br \/>rep stosb<\/p><\/blockquote>\n<p>\u4ee5\u4e0a\u4ee3\u7801\u5b9e\u73b0szDest\u5904\u5f00\u59cb\u7684dwSize\u5b57\u8282\u586b\u5145\u4e3a0,\u5982\u679c\u628axor eax,eax\u6362\u6210mov al,xx \u90a3\u4e0a\u8fb9\u7684\u4ee3\u7801\u5c06\u5b9e\u73b0\u5c06\u5185\u5b58\u5757\u586b\u5145\u4e3axx<\/p>\n<p>\u4ee5\u4e0a\u529f\u80fd\u5bf9\u5e94\u7684API\u5982\u4e0b:<\/p>\n<blockquote><p>invoke RtlMoveMemory,offset szDest,offset szSource,dwSize  ;\u79fb\u52a8\u5185\u5b58<br \/>invoke RtlFillMemory,offset szDest,dwSize,dbFill   ;\u4ee5dbFill\u586b\u5145\u5185\u5b58\u5757<br \/>invoke RtlZeroMemory,offset szDest,dwSize  ;\u4ee50\u586b\u5145\u5185\u5b58\u5757<\/p><\/blockquote>\n<p>2.\u5185\u5b58\u72b6\u6001\u6d4b\u8bd5<\/p>\n<blockquote><p>invoke IsBadCodePtr,lpMemory<br \/>invoke IsBadReadPtr,lpMemory,dwSize<br \/>invoke IsBadWritePtr,lpMemory,dwSize<br \/>invoke IsBadStringPtr,lpMemory,dwSize<\/p><\/blockquote>\n<p>IsBadCodePtr:\u51fd\u6570\u6d4b\u8bd5\u6307\u9488\u6307\u5411\u7684\u5355\u4e2a\u5b57\u8282\u662f\u5426\u53ef\u8bfb,\u5982\u679c\u53ef\u8bfb\u8fd4\u56de0,\u5426\u5219\u8fd4\u56de\u975e0\u503c<br \/>IsBadReadPtr:\u6d4b\u8bd5\u67d0\u6bb5\u5185\u5b58\u662f\u5426\u53ef\u8bfb,\u5982\u679c\u8fd9\u6bb5\u5185\u5b58\u7684\u6240\u6709\u5b57\u8282\u5168\u53ef\u8bfb\u5219\u8fd4\u56de0,\u5426\u5219\u8fd4\u56de\u975e0\u503c<br \/>IsBadWritePtr:\u6d4b\u8bd5\u67d0\u6bb5\u5185\u5b58\u662f\u5426\u53ef\u5199,\u5982\u679c\u5185\u5b58\u6bb5\u5168\u90fd\u53ef\u5199\u5219\u8fd4\u56de0,\u5426\u5219\u8fd4\u56de\u975e0\u503c<br \/>IsBadStringPtr:\u6d4b\u8bd5\u4e00\u4e2a\u6307\u5411\u4ee50\u7ed3\u5c3e\u7684\u5b57\u7b26\u4e32\u662f\u5426\u53ef\u8bfb,dwSize\u4e3a\u5b57\u7b26\u4e32\u6700\u5927\u957f\u5ea6,\u5982\u679c\u5b57\u7b26\u4e32\u5305\u542b\u7ed3\u5c3e\u76840\u5168\u662f\u53ef\u8bfb\u7684,\u8fd4\u56de0,\u5426\u5219\u8fd4\u56de\u975e0\u503c,\u7f13\u51b2\u533a\u4e2d\u5269\u4f59\u7684\u5b57\u8282\u5219\u4e0d\u4e88\u6d4b\u8bd5<\/p>\n","protected":false},"excerpt":{"rendered":"<p>1.\u586b\u5145\u548c\u79fb\u52a8\u5185\u5b58 mov esi,offset szSourcemov edi,offset szDestm [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[12],"tags":[],"class_list":["post-58","post","type-post","status-publish","format-standard","hentry","category-12"],"_links":{"self":[{"href":"https:\/\/www.kumouse.com\/index.php?rest_route=\/wp\/v2\/posts\/58","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.kumouse.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.kumouse.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.kumouse.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.kumouse.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=58"}],"version-history":[{"count":0,"href":"https:\/\/www.kumouse.com\/index.php?rest_route=\/wp\/v2\/posts\/58\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.kumouse.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=58"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.kumouse.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=58"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.kumouse.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=58"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}