fseek man page on Ultrix

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fseek(3s)							     fseek(3s)

       fseek, ftell, rewind - reposition a file pointer in a stream

       #include <stdio.h>

       int fseek(stream, offset, ptrname)
       FILE *stream;
       long offset;
       int ptrname;

       long ftell(stream)
       FILE *stream;

       void rewind(stream)
       FILE *stream;

       The function sets the position of the next input or output operation on
       the stream.  The new position is at the signed  distance	 offset	 bytes
       from  the  beginning,  the  current  position,  or the end of the file,
       according as ptrname has the value SEEK_SET, SEEK_CUR, or SEEK_END.

       The function undoes any effects of

       The function returns the current value of the offset  relative  to  the
       beginning of the file associated with the named stream.	It is measured
       in bytes and is the only foolproof way to obtain an offset for

       The (stream) function is equivalent to  (stream	,  0L,	0,  SEEK_SET),
       except that no value is returned.

Return Values
       The function returns -1 for improper seeks, otherwise 0.

See Also
       lseek(2), fopen(3s)


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