1 files changed, 202 insertions, 0 deletions
diff --git a/lib/iolog/iolog_conf.c b/lib/iolog/iolog_conf.c
new file mode 100644
index 0000000..61a35a5
--- /dev/null
+++ b/lib/iolog/iolog_conf.c
@@ -0,0 +1,202 @@
+/*
+ * SPDX-License-Identifier: ISC
+ *
+ * Copyright (c) 2009-2021 Todd C. Miller <Todd.Miller@sudo.ws>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+/*
+ * This is an open source non-commercial project. Dear PVS-Studio, please check it.
+ * PVS-Studio Static Code Analyzer for C, C++ and C#: http://www.viva64.com
+ */
+
+#include <config.h>
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <stdio.h>
+#include <stdlib.h>
+#ifdef HAVE_STDBOOL_H
+# include <stdbool.h>
+#else
+# include "compat/stdbool.h"
+#endif
+
+#include "pathnames.h"
+#include "sudo_compat.h"
+#include "sudo_debug.h"
+#include "sudo_util.h"
+#include "sudo_iolog.h"
+
+static unsigned int sessid_max = SESSID_MAX;
+static mode_t iolog_filemode = S_IRUSR|S_IWUSR;
+static mode_t iolog_dirmode = S_IRWXU;
+static uid_t iolog_uid = ROOT_UID;
+static gid_t iolog_gid = ROOT_GID;
+static bool iolog_gid_set;
+static bool iolog_docompress;
+static bool iolog_doflush;
+
+/*
+ * Reset I/O log settings to default values.
+ */
+void
+iolog_set_defaults(void)
+{
+    sessid_max = SESSID_MAX;
+    iolog_filemode = S_IRUSR|S_IWUSR;
+    iolog_dirmode = S_IRWXU;
+    iolog_uid = ROOT_UID;
+    iolog_gid = ROOT_GID;
+    iolog_gid_set = false;
+    iolog_docompress = false;
+    iolog_doflush = false;
+}
+
+/*
+ * Set max sequence number (aka session ID)
+ */
+void
+iolog_set_maxseq(unsigned int newval)
+{
+    debug_decl(iolog_set_maxseq, SUDO_DEBUG_UTIL);
+
+    /* Clamp to SESSID_MAX as documented. */
+    if (newval > SESSID_MAX)
+	newval = SESSID_MAX;
+    sessid_max = newval;
+
+    debug_return;
+}
+
+/*
+ * Set iolog_uid (and iolog_gid if gid not explicitly set).
+ */
+void
+iolog_set_owner(uid_t uid, gid_t gid)
+{
+    debug_decl(iolog_set_owner, SUDO_DEBUG_UTIL);
+
+    iolog_uid = uid;
+    if (!iolog_gid_set)
+	iolog_gid = gid;
+
+    debug_return;
+}
+
+/*
+ * Set iolog_gid.
+ */
+void
+iolog_set_gid(gid_t gid)
+{
+    debug_decl(iolog_set_gid, SUDO_DEBUG_UTIL);
+
+    iolog_gid = gid;
+    iolog_gid_set = true;
+
+    debug_return;
+}
+
+/*
+ * Set iolog_filemode and iolog_dirmode.
+ */
+void
+iolog_set_mode(mode_t mode)
+{
+    debug_decl(iolog_set_mode, SUDO_DEBUG_UTIL);
+
+    /* I/O log files must be readable and writable by owner. */
+    iolog_filemode = S_IRUSR|S_IWUSR;
+
+    /* Add in group and other read/write if specified. */
+    iolog_filemode |= mode & (S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH);
+
+    /* For directory mode, add execute bits as needed. */
+    iolog_dirmode = iolog_filemode | S_IXUSR;
+    if (iolog_dirmode & (S_IRGRP|S_IWGRP))
+	iolog_dirmode |= S_IXGRP;
+    if (iolog_dirmode & (S_IROTH|S_IWOTH))
+	iolog_dirmode |= S_IXOTH;
+
+    debug_return;
+}
+
+/*
+ * Set iolog_docompress
+ */
+void
+iolog_set_compress(bool newval)
+{
+    debug_decl(iolog_set_compress, SUDO_DEBUG_UTIL);
+    iolog_docompress = newval;
+    debug_return;
+}
+
+/*
+ * Set iolog_doflush
+ */
+void
+iolog_set_flush(bool newval)
+{
+    debug_decl(iolog_set_flush, SUDO_DEBUG_UTIL);
+    iolog_doflush = newval;
+    debug_return;
+}
+
+/*
+ * Getters.
+ */
+
+unsigned int
+iolog_get_maxseq(void)
+{
+    return sessid_max;
+}
+
+uid_t
+iolog_get_uid(void)
+{
+    return iolog_uid;
+}
+
+gid_t
+iolog_get_gid(void)
+{
+    return iolog_gid;
+}
+
+mode_t
+iolog_get_file_mode(void)
+{
+    return iolog_filemode;
+}
+
+mode_t
+iolog_get_dir_mode(void)
+{
+    return iolog_dirmode;
+}
+
+bool
+iolog_get_compress(void)
+{
+    return iolog_docompress;
+}
+
+bool
+iolog_get_flush(void)
+{
+    return iolog_doflush;
+}