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@ -10,7 +10,8 @@ mmap_readat opens \fIfilename\fR for reading, maps the whole file into
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memory, closes the file, writes the length of the file to \fIfilesize\fR
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and returns a pointer to the mapped file.
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If \fIfilename\fR is a relative path and \fIdirfd\fR is not -1,
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If \fIfilename\fR is a relative path and \fIdirfd\fR is not AT_FDCWD
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(defined in fcntl.h),
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\fIfilename\fR is interpreted relative to \fIdirfd\fR, which must be an
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open directory.
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