proc_dostring - read a string sysctl
2. SYNOPSIS ▲
int proc_dostring(struct ctl_table * table , int write , void __user * buffer , size_t * lenp , loff_t * ppos );
3. ARGUMENTS ▲
the sysctl table
TRUE if this is a write to the sysctl file
the user buffer
the size of the user buffer
4. DESCRIPTION ▲
Reads/writes a string from/to the user buffer. If the kernel buffer provided is not large enough to hold the string, the string is truncated. The copied string is NULL-terminated. If the string is being read by the user process, it is copied and a newline Aq\nAq is added. It is truncated if the buffer is not large enough.
Returns 0 on success.
5. COPYRIGHT ▲