| -rw-r--r-- | coreutils/install.c | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/coreutils/install.c b/coreutils/install.c index e685892..d0dcd0e 100644 --- a/coreutils/install.c +++ b/coreutils/install.c @@ -209,9 +209,16 @@ int install_main(int argc, char **argv) dest = last; if (opts & OPT_MKDIR_LEADING) { char *ddir = xstrdup(dest); - bb_make_directory(dirname(ddir), 0755, mkdir_flags); - /* errors are not checked. copy_file - * will fail if dir is not created. */ + char *dn = dirname(ddir); + /* musl can return read-only "/" or "." string. + * bb_make_directory needs writable string. + */ + if ((dn[0] != '/' && dn[0] != '.') || dn[1] != '\0') { + bb_make_directory(dn, 0755, mkdir_flags); + /* errors are not checked. copy_file + * will fail if dir is not created. + */ + } free(ddir); } if (isdir) |