LU-2074 build: fix 'copy into fixed size buffer' errors

[fs/lustre-release.git] / lnet / utils / debug.c

diff --git a/lnet/utils/debug.c b/lnet/utils/debug.c
index 33699ff..f975866 100644 (file)
--- a/lnet/utils/debug.c
+++ b/lnet/utils/debug.c
@@ -585,11 +585,21 @@ int jt_dbg_debug_kernel(int argc, char **argv)
         /* If we are dumping raw (which means no conversion step to ASCII)
          * then dump directly to any supplied filename, otherwise this is
          * just a temp file and we dump to the real file at convert time. */
-        if (argc > 1 && raw)
-                strcpy(filename, argv[1]);
-        else
-                sprintf(filename, "%s"CFS_TIME_T".%u",
-                       LIBCFS_DEBUG_FILE_PATH_DEFAULT, time(NULL), getpid());
+       if (argc > 1 && raw) {
+               if (strlen(argv[1]) > sizeof(filename)-1) {
+                       fprintf(stderr, "File name too long: %s\n", argv[1]);
+                       return 1;
+               }
+               strncpy(filename, argv[1], sizeof(filename));
+       } else {
+               if (snprintf(filename, sizeof(filename), "%s"CFS_TIME_T".%u",
+                            LIBCFS_DEBUG_FILE_PATH_DEFAULT, time(NULL),
+                            getpid()) >=
+                   sizeof(filename)) {
+                       fprintf(stderr, "File name too long\n");
+                       return 1;
+               }
+       }
 
         if (stat(filename, &st) == 0 && S_ISREG(st.st_mode))
                 unlink(filename);