1 files changed, 59 insertions, 0 deletions
diff --git a/src/util/sane_strtol.c b/src/util/sane_strtol.c
new file mode 100644
index 0000000..b7435dd
--- /dev/null
+++ b/src/util/sane_strtol.c
@@ -0,0 +1,59 @@
+/*++
+/* NAME
+/*	sane_strtol 3
+/* SUMMARY
+/*	strtol() with mandatory errno reset
+/* SYNOPSIS
+/*	#include <sane_strtol.h>
+/*
+/*	long	sane_strtol(
+/*	const char *start, 
+/*	char **restrict end, 
+/*	int	base)
+/*
+/*	unsigned long sane_strtoul(
+/*	const char *start,
+/*	char **restrict end,
+/*	int	base)
+/* DESCRIPTION
+/*	These functions are wrappers around the strtol() and strtoul()
+/*	standard library functions that reset errno first, so that a
+/*	prior ERANGE error won't cause false errors.
+/* LICENSE
+/* .ad
+/* .fi
+/*	The Secure Mailer license must be distributed with this software.
+/* AUTHOR(S)
+/*	Wietse Venema
+/*	Google, Inc.
+/*	111 8th Avenue
+/*	New York, NY 10011, USA
+/*--*/
+
+ /*
+  * System library.
+  */
+#include <sys_defs.h>
+#include <stdlib.h>
+#include <errno.h>
+
+ /*
+  * Utility library.
+  */
+#include <sane_strtol.h>
+
+/* sane_strtol - strtol() with mandatory initialization */
+
+long    sane_strtol(const char *start, char **end, int base)
+{
+    errno = 0;
+    return (strtol(start, end, base));
+}
+
+/* sane_strtoul - strtoul() with mandatory initialization */
+
+unsigned long sane_strtoul(const char *start, char **end, int base)
+{
+    errno = 0;
+    return (strtoul(start, end, base));
+}