diff options
Diffstat (limited to 'libio')
| -rw-r--r-- | libio/Makefile | 2 | ||||
| -rw-r--r-- | libio/fileops.c | 50 |
2 files changed, 9 insertions, 43 deletions
diff --git a/libio/Makefile b/libio/Makefile index 1d7611d..a97623f 100644 --- a/libio/Makefile +++ b/libio/Makefile @@ -54,7 +54,7 @@ tests = tst_swprintf tst_wprintf tst_swscanf tst_wscanf tst_getwc tst_putwc \ tst-freopen bug-rewind bug-rewind2 bug-ungetc bug-fseek \ tst-mmap-eofsync tst-mmap-fflushsync bug-mmap-fflush \ tst-mmap2-eofsync tst-mmap-offend bug-fopena+ bug-wfflush \ - bug-ungetc2 bug-ftell bug-ungetc3 + bug-ungetc2 bug-ftell bug-ungetc3 bug-ungetc4 test-srcs = test-freopen all: # Make this the default target; it will be defined in Rules. diff --git a/libio/fileops.c b/libio/fileops.c index 2d787d2..19151cf 100644 --- a/libio/fileops.c +++ b/libio/fileops.c @@ -1035,54 +1035,20 @@ _IO_new_file_seekoff (fp, offset, dir, mode) if (fp->_offset != _IO_pos_BAD && fp->_IO_read_base != NULL && !_IO_in_backup (fp)) { - /* Offset relative to start of main get area. */ - _IO_off64_t rel_offset = (offset - fp->_offset - + (fp->_IO_read_end - fp->_IO_read_base)); - if (rel_offset >= 0) + _IO_off64_t start_offset = (fp->_offset + - (fp->_IO_read_end - fp->_IO_buf_base)); + if (offset >= start_offset && offset < fp->_offset) { -#if 0 - if (_IO_in_backup (fp)) - _IO_switch_to_main_get_area (fp); -#endif - if (rel_offset <= fp->_IO_read_end - fp->_IO_read_base) - { - _IO_setg (fp, fp->_IO_buf_base, fp->_IO_buf_base + rel_offset, - fp->_IO_read_end); - _IO_setp (fp, fp->_IO_buf_base, fp->_IO_buf_base); - { - _IO_mask_flags (fp, 0, _IO_EOF_SEEN); - goto resync; - } - } -#ifdef TODO - /* If we have streammarkers, seek forward by reading ahead. */ - if (_IO_have_markers (fp)) - { - int to_skip = rel_offset - - (fp->_IO_read_ptr - fp->_IO_read_base); - if (ignore (to_skip) != to_skip) - goto dumb; - _IO_mask_flags (fp, 0, _IO_EOF_SEEN); - goto resync; - } -#endif - } -#ifdef TODO - if (rel_offset < 0 && rel_offset >= Bbase () - Bptr ()) - { - if (!_IO_in_backup (fp)) - _IO_switch_to_backup_area (fp); - gbump (fp->_IO_read_end + rel_offset - fp->_IO_read_ptr); + _IO_setg (fp, fp->_IO_buf_base, + fp->_IO_buf_base + (offset - start_offset), + fp->_IO_read_end); + _IO_setp (fp, fp->_IO_buf_base, fp->_IO_buf_base); + _IO_mask_flags (fp, 0, _IO_EOF_SEEN); goto resync; } -#endif } -#ifdef TODO - INTUSE(_IO_unsave_markers) (fp); -#endif - if (fp->_flags & _IO_NO_READS) goto dumb; |