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push_undo() correctly handle case when tmpdir can not be created (init_undo() fails)

This commit is contained in:
stefan schippers 2024-12-16 02:18:32 +01:00
parent cac5392a45
commit 8c4d5cb7b8
1 changed files with 2 additions and 2 deletions
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4
src/save.c
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@ -3567,7 +3567,7 @@ void delete_undo(void)
/* create undo directory in XSCHEM_TEMP_DIR */
static void init_undo(void)
{
if(!xctx->undo_initialized) {
if(xctx->no_undo == 0 && !xctx->undo_initialized) {
/* create undo directory */
if( !my_strdup(_ALLOC_ID_, &xctx->undo_dirname, create_tmpdir("xschem_undo_") )) {
dbg(0, "xinit(): problems creating tmp undo dir, Undo will be disabled\n");
@ -3588,10 +3588,10 @@ void push_undo(void)
FILE *fd;
char diff_name[PATH_MAX+100]; /* overflow safe 20161122 */
if(xctx->no_undo)return;
dbg(1, "push_undo(): cur_undo_ptr=%d tail_undo_ptr=%d head_undo_ptr=%d\n",
xctx->cur_undo_ptr, xctx->tail_undo_ptr, xctx->head_undo_ptr);
init_undo();
if(xctx->no_undo)return;
#if HAS_POPEN==1
my_snprintf(diff_name, S(diff_name), "gzip --fast -c > %s/undo%d",
xctx->undo_dirname, xctx->cur_undo_ptr%MAX_UNDO);