X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=tools%2Ffit_info.c;h=652abcd2bd15434b78298035e53a6d13c9b874e4;hb=1531034831b3098634b524b7e244f577fae21312;hp=afbed7b5995a69a261bae2a4d055963c9fc9b543;hpb=a9468115699de562f08796bf2eabd832435bedec;p=u-boot

diff --git a/tools/fit_info.c b/tools/fit_info.c
index afbed7b599..652abcd2bd 100644
--- a/tools/fit_info.c
+++ b/tools/fit_info.c
@@ -48,10 +48,11 @@ int main(int argc, char **argv)
 	char *fdtfile = NULL;
 	char *nodename = NULL;
 	char *propertyname = NULL;
-	char cmdname[50];
+	char cmdname[256];
 	int c;
 
-	strcpy(cmdname, *argv);
+	strncpy(cmdname, *argv, sizeof(cmdname) - 1);
+	cmdname[sizeof(cmdname) - 1] = '\0';
 	while ((c = getopt(argc, argv, "f:n:p:")) != -1)
 		switch (c) {
 		case 'f':
@@ -68,6 +69,18 @@ int main(int argc, char **argv)
 			break;
 		}
 
+	if (!fdtfile) {
+		fprintf(stderr, "%s: Missing fdt file\n", *argv);
+		usage(*argv);
+	}
+	if (!nodename) {
+		fprintf(stderr, "%s: Missing node name\n", *argv);
+		usage(*argv);
+	}
+	if (!propertyname) {
+		fprintf(stderr, "%s: Missing property name\n", *argv);
+		usage(*argv);
+	}
 	ffd = mmap_fdt(cmdname, fdtfile, 0, &fit_blob, &fsbuf, false);
 
 	if (ffd < 0) {