diff options
| author | Bram Moolenaar <Bram@vim.org> | 2022-09-21 11:21:57 +0100 |
|---|---|---|
| committer | Bram Moolenaar <Bram@vim.org> | 2022-09-21 11:21:57 +0100 |
| commit | 2b1ddf19f8f14365d0b998b4ac12ca85c0923475 (patch) | |
| tree | 45b99a35fdf3c665d67ee7d94c0cd666f434cafe /src/drawline.c | |
| parent | f7c7aa3594b9f917b0b9571e1e60bef69b55244d (diff) | |
patch 9.0.0527: long sign text may overflow bufferv9.0.0527
Problem: Long sign text may overflow buffer.
Solution: Use a larger buffer. Prevent for overflow.
Diffstat (limited to 'src/drawline.c')
| -rw-r--r-- | src/drawline.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/src/drawline.c b/src/drawline.c index c423756178..c77f88848c 100644 --- a/src/drawline.c +++ b/src/drawline.c @@ -124,7 +124,9 @@ typedef struct { int saved_c_final; int saved_char_attr; - char_u extra[21]; // "%ld " and 'fdc' must fit in here + char_u extra[NUMBUFLEN + MB_MAXBYTES]; + // "%ld " and 'fdc' must fit in here, as well + // any text sign #ifdef FEAT_DIFF hlf_T diff_hlf; // type of diff highlighting @@ -259,13 +261,13 @@ get_sign_display_info( { if (nrcol) { - int n, width = number_width(wp) - 2; + int width = number_width(wp) - 2; + int n; for (n = 0; n < width; n++) wlv->extra[n] = ' '; - wlv->extra[n] = 0; - STRCAT(wlv->extra, wlv->p_extra); - STRCAT(wlv->extra, " "); + vim_snprintf((char *)wlv->extra + n, + sizeof(wlv->extra) - n, "%s ", wlv->p_extra); wlv->p_extra = wlv->extra; } wlv->c_extra = NUL; |