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in backup_lines(), avoid a segfault when the mark begins and ends on the 

line after the last line of the paragraph


git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@4099 35c25a1d-7b9e-4130-9fde-d3aeb78583b8
master
David Lawrence Ramsey 2007-04-22 15:04:05 +00:00
parent d4cf1fd0ca
commit ee43ea6a74
2 changed files with 14 additions and 2 deletions
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5
ChangeLog
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@ -1,3 +1,8 @@
2007-04-22 David Lawrence Ramsey <pooka109@gmail.com>
* text.c (backup_lines): Avoid a segfault when the mark begins
and ends on the line after the last line of the paragraph.
2007-04-21 David Lawrence Ramsey <pooka109@gmail.com> 2007-04-21 David Lawrence Ramsey <pooka109@gmail.com>
* files.c (do_writeout): If we're in restricted mode, we're not * files.c (do_writeout): If we're in restricted mode, we're not

11
src/text.c
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@ -1212,9 +1212,16 @@ void backup_lines(filestruct *first_line, size_t par_len)
* line, putting first_line, edittop, current, and mark_begin at the * line, putting first_line, edittop, current, and mark_begin at the
* same lines in the copied paragraph that they had in the original * same lines in the copied paragraph that they had in the original
* paragraph. */ * paragraph. */
if (openfile->current != openfile->fileage) if (openfile->current != openfile->fileage) {
top = openfile->current->prev; top = openfile->current->prev;
else #ifndef NANO_TINY
if (old_mark_set &&
openfile->current->lineno == mb_lineno_save) {
openfile->mark_begin = openfile->current;
openfile->mark_begin_x = mark_begin_x_save;
}
#endif
} else
top = openfile->current; top = openfile->current;
for (i = par_len; i > 0 && top != NULL; i--) { for (i = par_len; i > 0 && top != NULL; i--) {
if (top->lineno == fl_lineno_save) if (top->lineno == fl_lineno_save)