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-rw-r--r--src/util/sane_strtol.c59
1 files changed, 59 insertions, 0 deletions
diff --git a/src/util/sane_strtol.c b/src/util/sane_strtol.c
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+/*++
+/* 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));
+}