fix(strings): Avoid potential overflow on 32-bit systems (#2257)

Signed-off-by: Dave Henderson <dhenderson@gmail.com>

Author: hairyhenderson

internal/funcs/strings.go

@@ -376,7 +376,7 @@ func (StringFuncs) WordWrap(args ...interface{}) (string, error) {
 				return "", fmt.Errorf("expected width to be a number: %w", err)
 			}
 
-			if n > math.MaxUint32 {
+			if n > math.MaxInt {
 				return "", fmt.Errorf("width too large: %d", n)
 			}
 
@@ -391,7 +391,7 @@ func (StringFuncs) WordWrap(args ...interface{}) (string, error) {
 			return "", fmt.Errorf("expected width to be a number: %w", err)
 		}
 
-		if n > math.MaxUint32 {
+		if n > math.MaxInt {
 			return "", fmt.Errorf("width too large: %d", n)
 		}
 

strings/strings.go

@@ -3,6 +3,7 @@ package strings
 
 import (
 	"fmt"
+	"math"
 	"regexp"
 	"sort"
 	"strings"
@@ -129,7 +130,15 @@ func wwDefaults(opts WordWrapOpts) WordWrapOpts {
 // width.
 func WordWrap(in string, opts WordWrapOpts) string {
 	opts = wwDefaults(opts)
-	return goutils.WrapCustom(in, int(opts.Width), opts.LBSeq, false)
+
+	// if we're on a 32-bit system, we need to check for overflow. If the width
+	// is greater than maxint, we'll just use maxint.
+	width := int(opts.Width)
+	if width == -1 {
+		width = int(math.MaxInt)
+	}
+
+	return goutils.WrapCustom(in, width, opts.LBSeq, false)
 }
 
 // SkipLines - skip the given number of lines (ending with \n) from the string.