eina: provide full string length to vsnprintf to allow for null character

Summary: fix T6903

Reviewers: segfaultxavi

Reviewed By: segfaultxavi

Subscribers: cedric

Maniphest Tasks: T6903

Differential Revision: https://phab.enlightenment.org/D6009

diff --git a/src/lib/eina/eina_stringshare.c b/src/lib/eina/eina_stringshare.c
index f8510de..ab9924e 100644 (file)
--- a/src/lib/eina/eina_stringshare.c
+++ b/src/lib/eina/eina_stringshare.c
@@ -674,7 +674,7 @@ eina_stringshare_nprintf(unsigned int len, const char *fmt, ...)
    tmp = alloca(sizeof(char) * (len + 1));
 
    va_start(args, fmt);
-   size = vsnprintf(tmp, len, fmt, args);
+   size = vsnprintf(tmp, len + 1, fmt, args);
    va_end(args);
 
    if (size < 1)