1 files changed, 71 insertions, 0 deletions
diff --git a/lib/util/strtomode.c b/lib/util/strtomode.c
new file mode 100644
index 0000000..1902031
--- /dev/null
+++ b/lib/util/strtomode.c
@@ -0,0 +1,71 @@
+/*
+ * SPDX-License-Identifier: ISC
+ *
+ * Copyright (c) 2013-2015 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/stat.h>
+
+#include <stdlib.h>
+#include <errno.h>
+
+#include <sudo_compat.h>
+#include <sudo_debug.h>
+#include <sudo_gettext.h>
+#include <sudo_util.h>
+
+/*
+ * Parse an octal file mode in the range [0, 0777].
+ * On success, returns the parsed mode and clears errstr.
+ * On error, returns 0 and sets errstr.
+ */
+mode_t
+sudo_strtomode_v2(const char *cp, const char **errstr)
+{
+    char *ep;
+    long lval;
+    debug_decl(sudo_strtomode, SUDO_DEBUG_UTIL);
+
+    errno = 0;
+    lval = strtol(cp, &ep, 8);
+    if (ep == cp || *ep != '\0') {
+	if (errstr != NULL)
+	    *errstr = N_("invalid value");
+	errno = EINVAL;
+	debug_return_mode_t(0);
+    }
+    if (lval < 0 || lval > ACCESSPERMS) {
+	if (errstr != NULL)
+	    *errstr = lval < 0 ? N_("value too small") : N_("value too large");
+	errno = ERANGE;
+	debug_return_mode_t(0);
+    }
+    if (errstr != NULL)
+	*errstr = NULL;
+    debug_return_mode_t((mode_t)lval);
+}
+
+int
+sudo_strtomode_v1(const char *cp, const char **errstr)
+{
+    return (int)sudo_strtomode_v2(cp, errstr);
+}