atobool -> sudo_strtobool

atoid-> sudo_strtoid
atomode -> sudo_strtomode

lib/util/strtomode.c

@@ -0,0 +1,68 @@
+/*
+ * Copyright (c) 2013-2014 Todd C. Miller <Todd.Miller@courtesan.com>
+ *
+ * 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.
+ */
+
+#include <config.h>
+
+#include <sys/types.h>
+
+#include <stdio.h>
+#ifdef STDC_HEADERS
+# include <stdlib.h>
+# include <stddef.h>
+#else
+# ifdef HAVE_STDLIB_H
+#  include <stdlib.h>
+# endif
+#endif /* STDC_HEADERS */
+#include <errno.h>
+
+#define DEFAULT_TEXT_DOMAIN	"sudo"
+#include "gettext.h"		/* must be included before missing.h */
+
+#include "missing.h"
+#include "sudo_debug.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.
+ */
+int
+sudo_strtomode(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_int(0);
+    }
+    if (lval < 0 || lval > 0777) {
+	if (errstr != NULL)
+	    *errstr = lval < 0 ? N_("value too small") : N_("value too large");
+	errno = ERANGE;
+	debug_return_int(0);
+    }
+    if (errstr != NULL)
+	*errstr = NULL;
+    debug_return_int((int)lval);
+}