commit 03205432f5b6c0de85f9a901ab203b5377c05f83
author Michal Vasko <mvasko@cesnet.cz> Mon Sep 11 10:29:49 2023 +0200
committer Michal Vasko <mvasko@cesnet.cz> Mon Sep 11 10:29:49 2023 +0200
tree de40fb21cd8ee03ffa9aea3b9bdc17f245d6044b
parent cd9c00b273a2ba53f60b385cc637febccf85d65b

log BUGFIX handle append to empty string

src/log.c

diff --git a/src/log.c b/src/log.c
index 742ddb3..feaef5f 100644
--- a/src/log.c
+++ b/src/log.c
@@ -770,7 +770,7 @@
     }
 
     /* realloc string */
-    len = strlen(*str);
+    len = *str ? strlen(*str) : 0;
     new_len = len + 1 + (mod ? strlen(mod->name) + 1 : 0) + strlen(snode->name);
     mem = realloc(*str, new_len + 1);
     LY_CHECK_ERR_RET(!mem, LOGMEM(LYD_CTX(parent)), LY_EMEM);