X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/9c6837165bbe5d7e01d7d4f96dcdad761451c2d1..3179383f8549b98eaa977c03105cdec7af5007dc:/armsrc/util.c

diff --git a/armsrc/util.c b/armsrc/util.c
index a250e529..5b68f513 100644
--- a/armsrc/util.c
+++ b/armsrc/util.c
@@ -225,29 +225,29 @@ void FormatVersionInformation(char *dst, int len, const char *prefix, void *vers
 {
 	struct version_information *v = (struct version_information*)version_information;
 	dst[0] = 0;
-	strncat(dst, prefix, len);
+	strncat(dst, prefix, len-1);
 	if(v->magic != VERSION_INFORMATION_MAGIC) {
-		strncat(dst, "Missing/Invalid version information", len);
+		strncat(dst, "Missing/Invalid version information", len - strlen(dst) - 1);
 		return;
 	}
 	if(v->versionversion != 1) {
-		strncat(dst, "Version information not understood", len);
+		strncat(dst, "Version information not understood", len - strlen(dst) - 1);
 		return;
 	}
 	if(!v->present) {
-		strncat(dst, "Version information not available", len);
+		strncat(dst, "Version information not available", len - strlen(dst) - 1);
 		return;
 	}
 
-	strncat(dst, v->gitversion, len);
+	strncat(dst, v->gitversion, len - strlen(dst) - 1);
 	if(v->clean == 0) {
-		strncat(dst, "-unclean", len);
+		strncat(dst, "-unclean", len - strlen(dst) - 1);
 	} else if(v->clean == 2) {
-		strncat(dst, "-suspect", len);
+		strncat(dst, "-suspect", len - strlen(dst) - 1);
 	}
 
-	strncat(dst, " ", len);
-	strncat(dst, v->buildtime, len);
+	strncat(dst, " ", len - strlen(dst) - 1);
+	strncat(dst, v->buildtime, len - strlen(dst) - 1);
 }
 
 //  -------------------------------------------------------------------------