From: chaoskagami <chaos.kagami@gmail.com>
Date: Tue, 10 Jan 2017 07:52:46 +0000 (-0500)
Subject: Potential edge case; when the first byte of the NAND CID is 0x00 - 0x0F, the config... 
X-Git-Tag: v0.3.1~36
X-Git-Url: https://chaos.moe/g/?a=commitdiff_plain;h=919d0437b0b534531e8baeb37947eb2fe1d7ef62;p=corbenik%2Fcorbenik.git

Potential edge case; when the first byte of the NAND CID is 0x00 - 0x0F, the config name is zero terminated early and this may very well break everything
---

diff --git a/source/config-backend-file.c b/source/config-backend-file.c
index 254aa20..34edaf1 100644
--- a/source/config-backend-file.c
+++ b/source/config-backend-file.c
@@ -103,13 +103,17 @@ load_config(void)
             changed_consoles = 1;
         }
 
-        strcpy(config_file_path, SYSCONFDIR "/config-");
+        strcpy(config_file_path, SYSCONFDIR "/config-00000000");
 
-        size_t len = strlen(config_file_path) + 7;
+        static const char hexDigits[] = "0123456789ABCDEF";
+        char* cfg = config_file_path;
         uint32_t cid_cp = cid[0];
+        while(cfg[1] != 0) cfg++;
+
+        // Get path of actual config.
         while (cid_cp) {
-            static const char hexDigits[] = "0123456789ABCDEF";
-            config_file_path[len--] = hexDigits[(uint32_t)(cid_cp & 0xF)];
+            cfg[0] = hexDigits[(uint32_t)(cid_cp & 0xF)];
+            cfg--;
             cid_cp >>= 4;
         }