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Flush pending output before entering or exiting alternate screen rather 

than leaking it, oss-fuzz issue 29959.
pull/2553/head
nicm 2021-01-27 10:42:52 +00:00
parent d6542c333d
commit 8156d9ba41
1 changed files with 4 additions and 0 deletions
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4
screen-write.c
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@ -1970,6 +1970,8 @@ screen_write_alternateon(struct screen_write_ctx *ctx, struct grid_cell *gc,
if (wp != NULL && !options_get_number(wp->options, "alternate-screen"))
return;
screen_write_collect_flush(ctx, 0, __func__);
screen_alternate_on(ctx->s, gc, cursor);
screen_write_initctx(ctx, &ttyctx, 1);
@ -1986,6 +1988,8 @@ screen_write_alternateoff(struct screen_write_ctx *ctx, struct grid_cell *gc,
if (wp != NULL && !options_get_number(wp->options, "alternate-screen"))
return;
screen_write_collect_flush(ctx, 0, __func__);
screen_alternate_off(ctx->s, gc, cursor);
screen_write_initctx(ctx, &ttyctx, 1);