diff --git a/interpolate.c b/interpolate.c
index 00826778fc3d760a9b001423cd9c26e7972c126f..2f727cd05b0d071d9aa750b90fe3c16c12ccbe5e 100644 (file)
--- a/interpolate.c
+++ b/interpolate.c
/* Check for valid interpolation. */
if (i < ninterps) {
value = interps[i].value;
- valuelen = strlen(value);
+ if (!value) {
+ src += namelen;
+ continue;
+ }
+ valuelen = strlen(value);
if (newlen + valuelen + 1 < reslen) {
/* Substitute. */
strncpy(dest, value, valuelen);