From 0f32102684bdc17aeac454cbb89f7dc0f72b46f3 Mon Sep 17 00:00:00 2001
From: Michael Vines <mvines@gmail.com>
Date: Thu, 25 Oct 2018 16:18:08 -0700
Subject: [PATCH] Restrict characters to those supported by semvar_bash

---
 scripts/increment-cargo-version.sh | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/scripts/increment-cargo-version.sh b/scripts/increment-cargo-version.sh
index 6c5872130..0f4ce527f 100755
--- a/scripts/increment-cargo-version.sh
+++ b/scripts/increment-cargo-version.sh
@@ -58,8 +58,13 @@ major)
 minor)
   MINOR=$((MINOR+ 1))
   ;;
--[A-Za-z0-9]*$)
-  SPECIAL="$1"
+-*)
+  if [[ $1 =~ ^-[A-Za-z0-9]*$ ]]; then
+    SPECIAL="$1"
+  else
+    echo "Error: Unsupported characters found in $1"
+    exit 1
+  fi
   ;;
 *)
   echo "Error: unknown argument: $1"