bin/bash/input.c

185   BUFFERED_STREAM *bp;
187   bp = (BUFFERED_STREAM *)xmalloc (sizeof (BUFFERED_STREAM));
189   buffers[fd] = bp;
190   bp->b_fd = fd;
191   bp->b_buffer = buffer;
192   bp->b_size = bufsize;
193   bp->b_used = bp->b_inputp = bp->b_flag = 0;
195     bp->b_flag |= B_UNBUFF;
196   return (bp);
201 copy_buffered_stream (bp)
202      BUFFERED_STREAM *bp;
206   if (!bp)
210   xbcopy ((char *)bp, (char *)nbp, sizeof (BUFFERED_STREAM));
409 free_buffered_stream (bp)
410      BUFFERED_STREAM *bp;
414   if (!bp)
417   n = bp->b_fd;
418   if (bp->b_buffer)
419     free (bp->b_buffer);
420   free (bp);
427 close_buffered_stream (bp)
428      BUFFERED_STREAM *bp;
432   if (!bp)
434   fd = bp->b_fd;
435   free_buffered_stream (bp);
458 set_buffered_stream (fd, bp)
460      BUFFERED_STREAM *bp;
465   buffers[fd] = bp;
471 b_fill_buffer (bp)
472      BUFFERED_STREAM *bp;
477   nr = zread (bp->b_fd, bp->b_buffer, bp->b_size);
480       bp->b_used = 0;
481       bp->b_buffer[0] = 0;
483 	bp->b_flag |= B_EOF;
485 	bp->b_flag |= B_ERROR;
491   if (nr >= 2 && bp->b_buffer[nr - 2] == '\r' && bp->b_buffer[nr - 1] == '\n')
493       bp->b_buffer[nr - 2] = '\n';
498   bp->b_used = nr;
499   bp->b_inputp = 0;
500   return (bp->b_buffer[bp->b_inputp++] & 0xFF);
504 #define bufstream_getc(bp) \
505   (bp->b_inputp == bp->b_used || !bp->b_used) \
506   		? b_fill_buffer (bp) \
507 		: bp->b_buffer[bp->b_inputp++] & 0xFF
511 bufstream_ungetc(c, bp)
513      BUFFERED_STREAM *bp;
515   if (c == EOF || bp->b_inputp == 0)
518   bp->b_buffer[--bp->b_inputp] = c;
528   BUFFERED_STREAM *bp;
531   if (buffers == 0 || (bp = buffers[bfd]) == 0)
534   chars_left = bp->b_used - (off_t)bp->b_inputp; /* mmu_man: force substract on LL for BeOS. */
536     lseek (bp->b_fd, -chars_left, SEEK_CUR);
537   bp->b_used = bp->b_inputp = 0;
571   BUFFERED_STREAM *bp;
575   bp = fd_to_buffered_stream (bfd);
576   init_yy_io (bp == 0 ? return_EOF : buffered_getchar,
604 process(bp)
605 BUFFERED_STREAM *bp;
609 	while ((c = bufstream_getc(bp)) != EOF)
623 	BUFFERED_STREAM *bp;
626 		bp = fd_to_buffered_stream (0);
627 		process(bp);
632 			bp = fd_to_buffered_stream (0);
633 			if (!bp)
635 			process(bp);
636 			free_buffered_stream (bp);
638 			bp = open_buffered_stream (argv[i]);
639 			if (!bp)
641 			process(bp);
642 			close_buffered_stream (bp);