305     PortFile->curPos = PortFile->curFrame->buffer;  in PortFopen()
306     PortFile->endPos = PortFile->curPos + end;  in PortFopen()
401       if (PortFile->endPos == PortFile->curPos)  /* end of file */  in PortFread()
404       if (PortFile->curPos == curFrame->buffer + curFrame->size) /* end of this frame */  in PortFread()
408         PortFile->curPos = curFrame->buffer;  in PortFread()
412         cbAvail = PortFile->endPos - PortFile->curPos;  in PortFread()
414         cbAvail = curFrame->size - (PortFile->curPos - curFrame->buffer);  in PortFread()
421         *bufferPtr++ = *PortFile->curPos++;  in PortFread()
424     if (PortFile->curPos == PortFile->endPos)  in PortFread()
464       if (PortFile->curPos == curFrame->buffer + curFrame->size) /* end of this frame */  in PortFwrite()
478             PortFile->curPos = PortFile->endPos = nextFrame->buffer;  in PortFwrite()
492       cbAvail = curFrame->size - (PortFile->curPos - curFrame->buffer);  in PortFwrite()
495       memcpy((char *)PortFile->curPos, buffer, minSize);  in PortFwrite()
497       PortFile->curPos += minSize;  in PortFwrite()
499       if (curFrame == PortFile->endFrame && PortFile->endPos < PortFile->curPos)  in PortFwrite()
500         PortFile->endPos = PortFile->curPos;  in PortFwrite()
527         PortFile->curPos = PortFile->endPos;  in PortFseek()
531         PortFile->curPos = PortFile->startFrame->buffer;  in PortFseek()
544         if (PortFile->endPos <= PortFile->curPos)  /* end of file */  in PortFseek()
547         if (PortFile->curPos == curFrame->buffer + curFrame->size) /* end of this frame */  in PortFseek()
554           PortFile->curPos = curFrame->buffer;  in PortFseek()
557           cbAvail = PortFile->endPos - PortFile->curPos;  in PortFseek()
559           cbAvail = curFrame->size - (PortFile->curPos - curFrame->buffer);  in PortFseek()
563         PortFile->curPos += minSize;  in PortFseek()
568         if (PortFile->startFrame->buffer == PortFile->curPos)  /* start of file */  in PortFseek()
571         if (PortFile->curPos <= curFrame->buffer) /* start of this frame */  in PortFseek()
578           PortFile->curPos = curFrame->buffer + curFrame->size;  in PortFseek()
580         cbAvail = PortFile->curPos - curFrame->buffer;  in PortFseek()
584         PortFile->curPos -= minSize;  in PortFseek()
602     size = PortFile->curPos - curFrame->buffer;  in PortFtell()
679       if (PortFile->curPos >= PortFile->endPos)  in PortFgets()
685       else if (*PortFile->curPos == '\n')  in PortFgets()
692         PortFile->curPos++;  in PortFgets()
701         retString[i] = *PortFile->curPos++;  in PortFgets()
771       c = (int) * PortFile->curPos++;  in PortFgetc()
773       if (PortFile->curPos >= PortFile->endPos)  in PortFgetc()
815     PortFile->curPos = PortFile->startFrame->buffer;  in PortRewind()