/** @memo Moves the file pointer to the offset from the origin.
@doc Move the file pointer to the offset in the file
relative to the origin.
@return 0 on success, -1 otherwise.
*/
long rtp_stdio_fseek (
void * rtpfile, /** Handle of file to move its pointer. */
long offset, /** The offset to move the pointer. */
int origin /** The location that the offset is relative to:<br>
<pre>
| 0 To seek from the beginning of the file.
| 1 To seek from the current file pointer position.
| 2 To seek from the end of the file.
</pre> */
)
{
if( !rtpfile || (((RTP_STDIO_FILE *)rtpfile)->verify != RTP_FILE_VERIFICATION_VALUE) )
{
/* --------------------------------------- */
/* Application passed an RTP_HANDLE */
/* instead of an RTP_STDIO_FILE. Should */
/* use low level rtp_file_read(). */
/* --------------------------------------- */
return (-1);
}
if (rtp_file_lseek (((RTP_STDIO_FILE *)rtpfile)->handle, offset, origin) < 0)
{
return (-1);
}
/* --------------------------------------- */
/* Clear end of file indicator if seek */
/* is successful. */
/* --------------------------------------- */
((RTP_STDIO_FILE *)rtpfile)->eofBool = 0;
return (0);
}
long rtplatform_lseek(int fd, long offset, int origin)
{
long rv;
rv = rtp_file_lseek ((RTP_HANDLE) fd, offset, origin);
if (rv < 0)
{
return -1;
}
return rv;
}
