1 files changed, 77 insertions, 0 deletions
diff --git a/lib/util/strtobool.c b/lib/util/strtobool.c
new file mode 100644
index 0000000..61aebbc
--- /dev/null
+++ b/lib/util/strtobool.c
@@ -0,0 +1,77 @@
+/*
+ * SPDX-License-Identifier: ISC
+ *
+ * Copyright (c) 2010-2016 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 <string.h>
+#ifdef HAVE_STRINGS_H
+# include <strings.h>
+#endif /* HAVE_STRINGS_H */
+
+#include <sudo_compat.h>
+#include <sudo_debug.h>
+#include <sudo_util.h>
+
+int
+sudo_strtobool_v1(const char *str)
+{
+    debug_decl(sudo_strtobool, SUDO_DEBUG_UTIL);
+
+    switch (*str) {
+	case '0':
+	case '1':
+	    if (str[1] == '\0')
+		debug_return_int(*str - '0');
+	    break;
+	case 'y':
+	case 'Y':
+	    if (strcasecmp(str, "yes") == 0)
+		debug_return_int(1);
+	    break;
+	case 't':
+	case 'T':
+	    if (strcasecmp(str, "true") == 0)
+		debug_return_int(1);
+	    break;
+	case 'o':
+	case 'O':
+	    if (strcasecmp(str, "on") == 0)
+		debug_return_int(1);
+	    if (strcasecmp(str, "off") == 0)
+		debug_return_int(0);
+	    break;
+	case 'n':
+	case 'N':
+	    if (strcasecmp(str, "no") == 0)
+		debug_return_int(0);
+	    break;
+	case 'f':
+	case 'F':
+	    if (strcasecmp(str, "false") == 0)
+		debug_return_int(0);
+	    break;
+    }
+    sudo_debug_printf(SUDO_DEBUG_ERROR|SUDO_DEBUG_LINENO,
+	"invalid boolean value \"%s\"", str);
+
+    debug_return_int(-1);
+}