1PROC_DOSTRING(9)              The proc filesystem             PROC_DOSTRING(9)
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NAME

6       proc_dostring - read a string sysctl
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SYNOPSIS

9       int proc_dostring(struct ctl_table * table, int write,
10                         void __user * buffer, size_t * lenp, loff_t * ppos);
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ARGUMENTS

13       table
14           the sysctl table
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16       write
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18           TRUE if this is a write to the sysctl file
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20       buffer
21           the user buffer
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23       lenp
24           the size of the user buffer
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26       ppos
27           file position
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DESCRIPTION

30       Reads/writes a string from/to the user buffer. If the kernel buffer
31       provided is not large enough to hold the string, the string is
32       truncated. The copied string is NULL-terminated. If the string is being
33       read by the user process, it is copied and a newline ´\n´ is added. It
34       is truncated if the buffer is not large enough.
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36       Returns 0 on success.
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39Kernel Hackers Manual 2.6.         June 2019                  PROC_DOSTRING(9)
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