libbb/parse_config.c: fix small buglet (by Vladimir)

1 files changed, 3 insertions, 1 deletions

diff --git a/libbb/parse_config.c b/libbb/parse_config.c
index 68caa2c37..3174a649e 100644
--- a/libbb/parse_config.c
+++ b/libbb/parse_config.c
@@ -199,7 +199,8 @@ int FAST_FUNC config_read(parser_t *parser, char **tokens, unsigned flags, const
                 } else {
                         // vanilla token. cut the line at the first delim
                         q = line + strcspn(line, delims);
-                        *q++ = '\0';
+                        if (*q) // watch out: do not step past the line end!
+                                *q++ = '\0';
                 }
                 // pin token
                 if ((flags & (PARSE_DONT_REDUCE|PARSE_DONT_TRIM)) || *line) {
@@ -207,6 +208,7 @@ int FAST_FUNC config_read(parser_t *parser, char **tokens, unsigned flags, const
                         tokens[ii++] = line;
                 }
                 line = q;
+                //bb_info_msg("A[%s]", line);
         }
 
         if (ii < mintokens)