android c++ open函数中 O_RDONLY ,O_CREAT 等宏定义对应的值 ,8进制表示。

当我拦截到open函数中flag为2100000 相当于O_CLOEXEC   |O_LARGEFILE

sssss file: /dev/__properties__/u:object_r:logd_prop:s0 getpid(7224), getuid(10063) flags 2100000

bionic/libc/kernel/uapi/asm-generic/fcntl.h

#define O_ACCMODE   00000003 
#define O_RDONLY    00000000 
#define O_WRONLY    00000001 
#define O_RDWR      00000002  
#define O_CREAT     00000100    /* not fcntl */  
#define O_EXCL      00000200    /* not fcntl */  
#ifndef O_NOCTTY 
#define O_NOCTTY    00000400    /* not fcntl */   
#define O_TRUNC     00001000    /* not fcntl */   
#define O_APPEND    00002000   
#define O_NONBLOCK  00004000  
#define O_SYNC      00010000  
#define FASYNC      00020000    /* fcntl, for BSD compatibility */  
#define O_DIRECT    00040000    /* direct disk access hint */  
#define O_LARGEFILE 00100000   
#define O_DIRECTORY 00200000    /* must be a directory */  
#define O_NOFOLLOW  00400000    /* don't follow links */  
#define O_NOATIME   01000000  
#define O_CLOEXEC   02000000    /* set close_on_exec */    

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Origin blog.csdn.net/babytiger/article/details/119772097