From af45bcfa19d93d47c34c0a55dd6ba7c1de4831d3 Mon Sep 17 00:00:00 2001
From: Fufu Fang <fangfufu2003@gmail.com>
Date: Tue, 31 Aug 2021 12:31:02 +0100
Subject: [PATCH] replaced strlen with strnlen

---
 src/link.c  | 1 +
 src/sonic.c | 3 ++-
 src/util.c  | 2 +-
 3 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/link.c b/src/link.c
index 828d463..9d0dfe0 100644
--- a/src/link.c
+++ b/src/link.c
@@ -37,6 +37,7 @@ static LinkTable *single_LinkTable_new(const char *url)
     char *ptr = strrchr(url, '/');
     int dir_len = ptr - url;
     char *dir_name = CALLOC(dir_len + 1, sizeof(char));
+    
     free(dir_name);
     return NULL;
 }
diff --git a/src/sonic.c b/src/sonic.c
index 8975217..6cce979 100644
--- a/src/sonic.c
+++ b/src/sonic.c
@@ -295,7 +295,8 @@ XML_parser_general(void *data, const char *elem, const char **attr)
         }
     }
 
-    if (!linkname_set && strlen(title) > 0 && strlen(suffix) > 0) {
+    if (!linkname_set && strnlen(title, MAX_PATH_LEN) > 0 &&
+        strnlen(suffix, MAX_PATH_LEN) > 0) {
         snprintf(link->linkname, MAX_FILENAME_LEN, "%02d - %s.%s",
                  track, title, suffix);
         linkname_set = 1;
diff --git a/src/util.c b/src/util.c
index c60f17e..69ce3b6 100644
--- a/src/util.c
+++ b/src/util.c
@@ -150,7 +150,7 @@ void FREE(void *ptr)
 
 char *str_to_hex(char *s)
 {
-    char *hex = CALLOC(strlen(s) * 2 + 1, sizeof(char));
+    char *hex = CALLOC(strnlen(s, MAX_PATH_LEN) * 2 + 1, sizeof(char));
     for (char *c = s, *h = hex; *c; c++, h += 2) {
         sprintf(h, "%x", *c);
     }