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fsetpos(3c) [opensolaris man page]

fsetpos(3C)						   Standard C Library Functions 					       fsetpos(3C)

NAME
fsetpos - reposition a file pointer in a stream SYNOPSIS
#include <stdio.h> int fsetpos(FILE *stream, const fpos_t *pos); DESCRIPTION
The fsetpos() function sets the file position indicator for the stream pointed to by stream according to the value of the object pointed to by pos, which must be a value obtained from an earlier call to fgetpos(3C) on the same stream. A successful call to fsetpos() function clears the end-of-file indicator for the stream and undoes any effects of ungetc(3C) on the same stream. After an fsetpos() call, the next operation on an update stream may be either input or output. RETURN VALUES
The fsetpos() function returns 0 if it succeeds; otherwise it returns a non-zero value and sets errno to indicate the error. ERRORS
The fsetpos() function may fail if: EBADF The file descriptor underlying stream is not valid. ESPIPE The file descriptor underlying stream is associated with a pipe, a FIFO, or a socket. USAGE
The fsetpos() function has a transitional interface for 64-bit file offsets. See lf64(5). ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Interface Stability |Standard | +-----------------------------+-----------------------------+ |MT-Level |MT-Safe | +-----------------------------+-----------------------------+ SEE ALSO
lseek(2), fgetpos(3C), fopen(3C), fseek(3C), ftell(3C), rewind(3C), ungetc(3C), attributes(5), lf64(5), standards(5) SunOS 5.11 24 Jul 2002 fsetpos(3C)

Check Out this Related Man Page

FSEEK(3)						     Linux Programmer's Manual							  FSEEK(3)

NAME
fgetpos, fseek, fsetpos, ftell, rewind - reposition a stream SYNOPSIS
#include <stdio.h> int fseek(FILE *stream, long offset, int whence); long ftell(FILE *stream); void rewind(FILE *stream); int fgetpos(FILE *stream, fpos_t *pos); int fsetpos(FILE *stream, fpos_t *pos); DESCRIPTION
The fseek() function sets the file position indicator for the stream pointed to by stream. The new position, measured in bytes, is obtained by adding offset bytes to the position specified by whence. If whence is set to SEEK_SET, SEEK_CUR, or SEEK_END, the offset is relative to the start of the file, the current position indicator, or end-of-file, respectively. A successful call to the fseek() function clears the end-of-file indicator for the stream and undoes any effects of the ungetc(3) function on the same stream. The ftell() function obtains the current value of the file position indicator for the stream pointed to by stream. The rewind() function sets the file position indicator for the stream pointed to by stream to the beginning of the file. It is equivalent to: (void) fseek(stream, 0L, SEEK_SET) except that the error indicator for the stream is also cleared (see clearerr(3)). The fgetpos() and fsetpos() functions are alternate interfaces equivalent to ftell() and fseek() (with whence set to SEEK_SET), setting and storing the current value of the file offset into or from the object referenced by pos. On some non-Unix systems an fpos_t object may be a complex object and these routines may be the only way to portably reposition a text stream. RETURN VALUE
The rewind() function returns no value. Upon successful completion, fgetpos(), fseek(), fsetpos() return 0, and ftell() returns the cur- rent offset. Otherwise, -1 is returned and errno is set to indicate the error. ERRORS
EBADF The stream specified is not a seekable stream. EINVAL The whence argument to fseek() was not SEEK_SET, SEEK_END, or SEEK_CUR. The functions fgetpos(), fseek(), fsetpos(), and ftell() may also fail and set errno for any of the errors specified for the routines fflush(3), fstat(2), lseek(2), and malloc(3). CONFORMING TO
C89, C99. SEE ALSO
lseek(2), fseeko(3) COLOPHON
This page is part of release 3.27 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/. GNU
1993-11-29 FSEEK(3)

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