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in display_string(), really avoid a memory corruption problem by 

allocating enough space for COLS characters


git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@3021 35c25a1d-7b9e-4130-9fde-d3aeb78583b8
This commit is contained in:
David Lawrence Ramsey 2005-09-20 04:15:33 +00:00
parent a03d9c0ecd
commit c4b854d5c7
2 changed files with 4 additions and 3 deletions
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2
ChangeLog
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@ -336,6 +336,8 @@ CVS code -
which can be possible if there are enough tabs and the which can be possible if there are enough tabs and the
terminal size is sufficiently large, don't try to display it terminal size is sufficiently large, don't try to display it
using control_mbrep(). (DLR, found by Duncan Geoffry Doyle) using control_mbrep(). (DLR, found by Duncan Geoffry Doyle)
- Really avoid a memory corruption problem by allocating enough
space for COLS characters. (DLR)
edit_redraw(), edit_refresh() edit_redraw(), edit_refresh()
- Clean up and simplify. (DLR) - Clean up and simplify. (DLR)
edit_update() edit_update()

5
src/winio.c
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@ -2328,9 +2328,8 @@ char *display_string(const char *buf, size_t start_col, size_t len, bool
assert(column <= start_col); assert(column <= start_col);
/* Allocate enough space for the entire line, accounting for a /* Allocate enough space for the entire line. */
* trailing multibyte character and/or tab. */ alloc_len = (mb_cur_max() * COLS);
alloc_len = (mb_cur_max() * (len + 1)) + tabsize;
converted = charalloc(alloc_len + 1); converted = charalloc(alloc_len + 1);
index = 0; index = 0;