seekdir - set the position of the next readdir() call in the directory stream.
void seekdir(DIR *dirp, long loc);
|| /* Glibc since 2.19: */ _DEFAULT_SOURCE
|| /* Glibc <= 2.19: */ _BSD_SOURCE || _SVID_SOURCE
The seekdir() function sets the location in the directory stream from
which the next readdir(2) call will start. The loc argument
should be a value returned by a previous call to telldir(3).
The seekdir() function returns no value.
For an explanation of the terms used in this section, see attributes(7).
POSIX.1-2001, POSIX.1-2008, 4.3BSD.
In glibc up to version 2.1.1, the type of the loc argument was
off_t. POSIX.1-2001 specifies long, and this is the type used
since glibc 2.1.2. See telldir(3) for information on why you should be
careful in making any assumptions about the value in this argument.
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