strnlen_unsafe

函数名称：strnlen_unsafe_user: - Get the size of a user string INCLUDING final NUL.*@unsafe_addr: The string to measure.*@count: Maximum count (including NUL)* Get the size of a NUL-terminated string in user space without pagefault.

函数原型：long strnlen_unsafe_user(const void __user *unsafe_addr, long count)

返回类型：long

参数：

类型	参数	名称
const void __user *	unsafe_addr
long	count

268

old_fs等于获取当前进程地址空间上限()

271

设置寄存器值(fs)

272

These routines enable/disable the pagefault handler. If disabled, it will* not take any locks and go straight to the fixup table.* User access methods will not sleep when called from a pagefault_disabled()* environment.

273

ret等于用户字符串长度

274

pagefault_enable()

275

设置寄存器值(fs)

277

返回:ret

**调用者**
名称	描述
fetch_store_strlen_user	Return the length of string -- including null terminal byte

源代码转换工具开放的插件接口	X
支持：c/c++/esqlc/java Oracle/Informix/Mysql 插件可实现：逻辑报告代码生成和批量转换代码

函数逻辑报告