scc

commit d21dc62bd4af1887ec743aa6f16550b2a474ad7f
parent 92ff27f9ece894a9fe6f426a97120a24d536457f
Author: Roberto E. Vargas Caballero <k0ga@shike2.com>
Date:   Tue, 28 Nov 2017 08:54:57 +0000

[objdump] Validate the magic number of the object file

Diffstat:
M
objdump/main.c
 | 
6
++++++

1 file changed, 6 insertions(+), 0 deletions(-)
diff --git a/objdump/main.c b/objdump/main.c
@@ -189,6 +189,12 @@ dump(char *fname)
 		goto wrong_file;
 	if (rdmyrohdr(fp, &hdr) < 0)
 		goto wrong_file;
+	if (strncmp(hdr.magic, MYROMAGIC, MYROMAGIC_SIZ)) {
+		fprintf(stderr,
+		        "objdump: %s: File format not recognized\n",
+		        fname);
+		goto close_file;
+	}
 	if (hdr.strsize > SIZE_MAX) {
 		fprintf(stderr,
 			"objdump: %s: overflow in header\n",