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proc_dostring
Langue: en
Version: October 2010 (fedora - 01/12/10)
Section: 9 (Appels noyau Linux)
NAME
proc_dostring - read a string sysctlSYNOPSIS
- int proc_dostring(struct ctl_table * table, int write, void __user * buffer, size_t * lenp, loff_t * ppos);
ARGUMENTS
table
- the sysctl table
write
TRUE if this is a write to the sysctl file
buffer
- the user buffer
lenp
- the size of the user buffer
ppos
- file position
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 '\n' is added. It is truncated if the buffer is not large enough.
Returns 0 on success.
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