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OpenSolaris 2009.06 - man page for ftello (opensolaris section 3c)

ftell(3C)						   Standard C Library Functions 						 ftell(3C)

NAME
ftell, ftello - return a file offset in a stream
SYNOPSIS
#include <stdio.h> long ftell(FILE *stream); off_t ftello(FILE *stream);
DESCRIPTION
The ftell() function obtains the current value of the file-position indicator for the stream pointed to by stream. The ftello() function is identical to ftell() except for the return type.
RETURN VALUES
Upon successful completion, the ftell() and ftello() functions return the current value of the file-position indicator for the stream mea- sured in bytes from the beginning of the file. Otherwise, they return -1 and sets errno to indicate the error.
ERRORS
The ftell() and ftello() functions will fail if: EBADF The file descriptor underlying stream is not an open file descriptor. ESPIPE The file descriptor underlying stream is associated with a pipe, a FIFO, or a socket. The ftell() function will fail if: EOVERFLOW The current file offset cannot be represented correctly in an object of type long. The ftello() function will fail if: EOVERFLOW The current file offset cannot be represented correctly in an object of type off_t.
USAGE
The ftello() 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), fopen(3C), fseek(3C), attributes(5), , standards(5), lf64(5) SunOS 5.11 24 Jul 2002 ftell(3C)