From aa7f16bda693932de34b4a45fb5d00dad60a818b Mon Sep 17 00:00:00 2001 From: Jim Meyering Date: Sat, 8 Jan 2005 12:00:54 +0000 Subject: (main): Check for column count overflow with usages like "pr -2147483648". --- src/pr.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/src/pr.c b/src/pr.c index 49112ecaf..cae343898 100644 --- a/src/pr.c +++ b/src/pr.c @@ -874,7 +874,10 @@ main (int argc, char **argv) { if (ISDIGIT (c)) { - accum = accum * 10 + c - '0'; + int new_c = accum * 10 + c - '0'; + if (INT_MAX / 10 < accum || new_c < 0) + error (EXIT_FAILURE, 0, _("column count too large")); + accum = new_c; columns = accum; explicit_columns = true; continue; -- cgit v1.2.3-70-g09d2