download: purge cached packages that have incorrect checksum

[project/opkg-lede.git] / libopkg / opkg_download.c

diff --git a/libopkg/opkg_download.c b/libopkg/opkg_download.c
index cfe8e68d93431cae6ec7d67d74f6ba2994ed2a8e..59123d25babfa2d05cf373ead8ac04ec857af95a 100644 (file)
--- a/libopkg/opkg_download.c
+++ b/libopkg/opkg_download.c
@@ -263,6 +263,8 @@ int opkg_download_pkg(pkg_t * pkg, const char *dir)
        char *stripped_filename;
        char *urlencoded_path;
        char *filename;
+       char *cache_name;
+       char *cache_location;
 
        if (pkg->src == NULL) {
                opkg_msg(ERROR,
@@ -296,6 +298,23 @@ int opkg_download_pkg(pkg_t * pkg, const char *dir)
        sprintf_alloc(&local_filename, "%s/%s", dir, stripped_filename);
        pkg_set_string(pkg, PKG_LOCAL_FILENAME, local_filename);
 
+       /* Invalidate/remove cached package if it has an incorrect checksum. */
+       if (conf->cache) {
+               cache_name = get_cache_filename(local_filename);
+               sprintf_alloc(&cache_location, "%s/%s", conf->cache, cache_name);
+               free(cache_name);
+               if (file_exists(cache_location)) {
+                       err = opkg_verify_integrity(pkg, cache_location);
+                       if (err) {
+                               opkg_msg(NOTICE,
+                                        "Removing %s from cache because it has incorrect checksum.\n",
+                                        pkg->name);
+                               unlink(cache_location);
+                       }
+               }
+               free(cache_location);
+       }
+
        err = opkg_download_cache(url, local_filename);
        free(url);