X-Git-Url: https://git.tokkee.org/?a=blobdiff_plain;f=compat%2Fsnprintf.c;h=357e733074ea7c85f880fa577ad65dfb3787fec7;hb=c841aa8b903200f5d7830c7c4ab8d62b5ef44c5c;hp=580966e56a3455b9970b7eef33143c1e9c57d41c;hpb=447d0cca45920bbe409361bb532444f810c75546;p=git.git

diff --git a/compat/snprintf.c b/compat/snprintf.c
index 580966e56..357e73307 100644
--- a/compat/snprintf.c
+++ b/compat/snprintf.c
@@ -17,6 +17,8 @@ int git_vsnprintf(char *str, size_t maxsize, const char *format, va_list ap)
 
 	if (maxsize > 0) {
 		ret = vsnprintf(str, maxsize-SNPRINTF_SIZE_CORR, format, ap);
+		if (ret == maxsize-1)
+			ret = -1;
 		/* Windows does not NUL-terminate if result fills buffer */
 		str[maxsize-1] = 0;
 	}
@@ -34,6 +36,8 @@ int git_vsnprintf(char *str, size_t maxsize, const char *format, va_list ap)
 			break;
 		s = str;
 		ret = vsnprintf(str, maxsize-SNPRINTF_SIZE_CORR, format, ap);
+		if (ret == maxsize-1)
+			ret = -1;
 	}
 	free(s);
 	return ret;