commit e4e0d6cdd7a24f555225764268182d570a9069dd
author aPiecek <piecek@cesnet.cz> Thu Jul 01 12:02:54 2021 +0200
committer Michal Vasko <mvasko@cesnet.cz> Thu Jul 01 12:58:23 2021 +0200
tree 1ebc5f754e138a1a1fa18acbf352e04aa5d5d716
parent 597b4233299be225e724de42d3d59ce06b89eda0

json BUGFIX labs() in lyjson_exp_number

Trying to take the absolute value of the most negative integer
(type of long) is not defined.

src/json.c

diff --git a/src/json.c b/src/json.c
index 7b23f30..d4fe20b 100644
--- a/src/json.c
+++ b/src/json.c
@@ -514,7 +514,7 @@
     /* Convert exponent. */
     errno = 0;
     e_val = strtol(exponent + 1, NULL, LY_BASE_DEC);
-    if (errno || (labs(e_val) > UINT16_MAX)) {
+    if (errno || (e_val > UINT16_MAX) || (e_val < -UINT16_MAX)) {
         LOGVAL(ctx, LYVE_SEMANTICS,
                 "Exponent out-of-bounds in a JSON Number value (%.*s).",
                 total_len, in);