Subversion Repositories planix.SVN

/*
 * pANS stdio -- ftello
 */
#include "iolib.h"
long long ftello(FILE *f){
        long long seekp=seek(f->fd, 0L, 1);
        if(seekp<0) return -1;          /* enter error state? */
        switch(f->state){
        default:
                return seekp;
        case RD:
                return seekp-(f->wp-f->rp);
        case WR:
                return (f->flags&LINEBUF?f->lp:f->wp)-f->buf+seekp;
        }
}