LU-11233 utils: fix build warnings for gcc8

[fs/lustre-release.git] / lustre / utils / lr_reader.c

diff --git a/lustre/utils/lr_reader.c b/lustre/utils/lr_reader.c
index a6d94c1..21be0d6 100644 (file)
--- a/lustre/utils/lr_reader.c
+++ b/lustre/utils/lr_reader.c
@@ -86,10 +86,10 @@ int run_command(char *cmd, size_t cmdsz)
        fd = mkstemp(log);
        if (fd >= 0) {
                close(fd);
-               strncat(cmd, " >", 2);
-               strncat(cmd, log, strlen(log));
+               strncat(cmd, " >", cmdsz);
+               strncat(cmd, log, cmdsz);
        }
-       strncat(cmd, " 2>&1", 5);
+       strncat(cmd, " 2>&1", cmdsz - strlen(cmd));
 
        /* Can't use popen because we need the rv of the command */
        rc = system(cmd);