Realpath arg 2 must be a minimum of PATH_MAX

[zfs.git] / cmd / ztest / ztest.c

diff --git a/cmd/ztest/ztest.c b/cmd/ztest/ztest.c
index 09f3d56..4479c59 100644 (file)
--- a/cmd/ztest/ztest.c
+++ b/cmd/ztest/ztest.c
@@ -729,13 +729,16 @@ process_options(int argc, char **argv)
            UINT64_MAX >> 2);
 
        if (strlen(altdir) > 0) {
-               char cmd[MAXNAMELEN];
-               char realaltdir[MAXNAMELEN];
+               char *cmd;
+               char *realaltdir;
                char *bin;
                char *ztest;
                char *isa;
                int isalen;
 
+               cmd = umem_alloc(MAXPATHLEN, UMEM_NOFAIL);
+               realaltdir = umem_alloc(MAXPATHLEN, UMEM_NOFAIL);
+
                VERIFY(NULL != realpath(getexecname(), cmd));
                if (0 != access(altdir, F_OK)) {
                        ztest_dump_core = B_FALSE;
@@ -767,6 +770,9 @@ process_options(int argc, char **argv)
                        fatal(B_TRUE, "invalid alternate lib directory %s",
                            zo->zo_alt_libpath);
                }
+
+               umem_free(cmd, MAXPATHLEN);
+               umem_free(realaltdir, MAXPATHLEN);
        }
 }