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diff -uNr busybox-1.31.1/miscutils/crontab.c busybox-1.31.1.mod/miscutils/crontab.c
--- busybox-1.31.1/miscutils/crontab.c 2019-06-10 13:50:53.000000000 +0300
+++ busybox-1.31.1.mod/miscutils/crontab.c 2020-01-30 14:58:07.338588354 +0200
@@ -51,12 +51,14 @@
return;
}
+#ifndef __ANDROID__
/* CHILD - change user and run editor */
/* initgroups, setgid, setuid */
change_identity(pas);
setup_environment(pas->pw_shell,
SETUP_ENV_CHANGEENV | SETUP_ENV_TO_TMP,
pas);
+#endif
ptr = getenv("VISUAL");
if (!ptr) {
ptr = getenv("EDITOR");
@@ -129,7 +131,11 @@
if (!argv[0])
bb_show_usage();
if (NOT_LONE_DASH(argv[0])) {
+#ifndef __ANDROID__
src_fd = xopen_as_uid_gid(argv[0], O_RDONLY, pas->pw_uid, pas->pw_gid);
+#else
+ src_fd = xopen3(argv[0], O_RDONLY, 0600);
+#endif
}
}
@@ -158,7 +164,9 @@
/* No O_EXCL: we don't want to be stuck if earlier crontabs
* were killed, leaving stale temp file behind */
src_fd = xopen3(tmp_fname, O_RDWR|O_CREAT|O_TRUNC, 0600);
+#ifndef __ANDROID__
fchown(src_fd, pas->pw_uid, pas->pw_gid);
+#endif
fd = open(pas->pw_name, O_RDONLY);
if (fd >= 0) {
bb_copyfd_eof(fd, src_fd);
@@ -167,7 +175,8 @@
}
close_on_exec_on(src_fd); /* don't want editor to see this fd */
edit_file(pas, tmp_fname);
- /* fall through */
+ xrename(tmp_fname, pas->pw_name);
+ break;
case 0: /* Replace (no -l, -e, or -r were given) */
new_fname = xasprintf("%s.new", pas->pw_name);