The Linux Kernel API
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strlen_user

Name

strlen_user --  Get the size of a string in user space.

Synopsis

strlen_user ( str);

Arguments

str

The string to measure.

Context

User context only. This function may sleep.

Description

Get the size of a NUL-terminated string in user space.

Returns the size of the string INCLUDING the terminating NUL. On exception, returns 0.

If there is a limit on the length of a valid string, you may wish to consider using strnlen_user instead.

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