diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/od.c | 11 |
1 files changed, 9 insertions, 2 deletions
@@ -981,7 +981,13 @@ skip (off_t n_skip) } else { - if (fseek (in_stream, n_skip, SEEK_SET) == 0) + /* fseek may work on some streams for which lseek doesn't. + But fseek's offset argument is restricted to the range + of type `long'. So if N_SKIP is too large or if fseek + fails, try lseek. */ + if ((n_skip <= LONG_MAX + && fseek (in_stream, (long) n_skip, SEEK_SET) == 0) + || lseek (fileno (in_stream), n_skip, SEEK_SET) >= 0) { n_skip = 0; break; @@ -989,7 +995,8 @@ skip (off_t n_skip) } } - /* fseek didn't work or wasn't attempted; do it the slow way. */ + /* Seek didn't work or wasn't attempted; position the file pointer + by reading. */ for (j = n_skip / BUFSIZ; j >= 0; j--) { |