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🆕 检测是否为elf文件
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@ -1 +1,33 @@
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#include "elf.h"
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#include "elf.h"
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#include <common/unistd.h>
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#include <common/glib.h>
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/**
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* @brief 校验是否为ELF文件
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*
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* @param ehdr
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*/
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bool elf_check(void *ehdr)
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{
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Elf32_Ehdr *ptr = (Elf32_Ehdr *)ehdr;
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bool flag = ptr->e_ident[EI_MAG0] == ELFMAG0 && ptr->e_ident[EI_MAG1] == ELFMAG1 && ptr->e_ident[EI_MAG2] == ELFMAG2 && ptr->e_ident[EI_MAG3] == ELFMAG3;
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// 标头已经不符合要求
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if (!flag)
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return false;
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// 检验EI_CLASS是否合法
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if (ptr->e_ident[EI_CLASS] == 0 || ptr->e_ident[EI_CLASS] > 2)
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return false;
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// 检验EI_DATA是否合法
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if (ptr->e_ident[EI_DATA] == 0 || ptr->e_ident[EI_DATA] > 2)
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return false;
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// 检验EI_VERSION是否合法
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if(ptr->e_ident[EI_VERSION]==EV_NONE)
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return false;
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// 是elf文件
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return true;
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}
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@ -357,4 +357,11 @@ Values in this inclusive range are reserved for OS-specific semantics.
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#define PF_MASKPROC 0xf0000000 // Unspecified
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// --> end ========== program header =========
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// --> end ========== program header =========
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/**
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* @brief 校验是否为ELF文件
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*
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* @param ehdr
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*/
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bool elf_check(void * ehdr);
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