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.TH io_readfile 3
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.SH NAME
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io_readfile \- open a file for reading
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.SH SYNTAX
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.B #include <libowfat/io.h>
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int \fBio_readfile\fP(int64* d,const char* filename);
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.SH DESCRIPTION
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io_readfile sets d to the number of a new descriptor reading from the
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disk file named \fIfilename\fR, and returns 1.
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If something goes wrong, io_readfile sets \fIerrno\fR to indicate the error, and
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returns 0; it does not create a new descriptor, and it does not touch d.
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.SH "SEE ALSO"
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io_createfile(3), io_appendfile(3), io_readwritefile(3)
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