diff options
Diffstat (limited to 'filename.c')
| -rw-r--r-- | filename.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/filename.c b/filename.c index d9d824be6f50..ad1b4b3cf4a9 100644 --- a/filename.c +++ b/filename.c @@ -1,5 +1,5 @@ /* - * Copyright (C) 1984-2025 Mark Nudelman + * Copyright (C) 1984-2026 Mark Nudelman * * You may distribute under the terms of either the GNU General Public * License or the Less License, as specified in the README file. @@ -475,16 +475,17 @@ public lbool bin_file(int f, ssize_t *n) char data[256]; constant char* p; constant char* edata; + constant int umax = 4; if (!seekable(f)) return FALSE; if (less_lseek(f, (less_off_t)0, SEEK_SET) == BAD_LSEEK) return FALSE; *n = read(f, data, sizeof(data)); - if (*n <= 0) + if (*n <= umax) return FALSE; edata = &data[*n]; - for (p = data; p < edata; ) + for (p = data; p+umax < edata; ) { if (utf_mode && !is_utf8_well_formed(p, (int) ptr_diff(edata,p))) { |