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-rw-r--r--src/global/dsn_mask.c123
1 files changed, 123 insertions, 0 deletions
diff --git a/src/global/dsn_mask.c b/src/global/dsn_mask.c
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+/*++
+/* NAME
+/* dsn_mask 3
+/* SUMMARY
+/* DSN embedding in SMTP
+/* SYNOPSIS
+/* #include <dsn_mask.h>
+/*
+/* int dsn_notify_mask(str)
+/* const char *str;
+/*
+/* const char *dsn_notify_str(mask)
+/* int mask;
+/*
+/* int dsn_ret_code(str)
+/* const char *str;
+/*
+/* const char *dsn_ret_str(code)
+/* int mask;
+/* DESCRIPTION
+/* dsn_ret_code() converts the parameters of a MAIL FROM ..
+/* RET option to internal form.
+/*
+/* dsn_ret_str() converts internal form to the representation
+/* used in the MAIL FROM .. RET command. The result is in
+/* stable and static memory.
+/*
+/* dsn_notify_mask() converts the parameters of a RCPT TO ..
+/* NOTIFY option to internal form.
+/*
+/* dsn_notify_str() converts internal form to the representation
+/* used in the RCPT TO .. NOTIFY command. The result is in
+/* volatile memory and is clobbered whenever str_name_mask()
+/* is called.
+/*
+/* Arguments:
+/* .IP str
+/* Information received with the MAIL FROM or RCPT TO command.
+/* .IP mask
+/* Internal representation.
+/* DIAGNOSTICS
+/* dsn_ret_code() and dsn_notify_mask() return 0 when the string
+/* specifies an invalid request.
+/*
+/* dsn_ret_str() and dsn_notify_str() abort on failure.
+/* LICENSE
+/* .ad
+/* .fi
+/* The Secure Mailer license must be distributed with this software.
+/* AUTHOR(S)
+/* Wietse Venema
+/* IBM T.J. Watson Research
+/* P.O. Box 704
+/* Yorktown Heights, NY 10598, USA
+/*--*/
+
+
+/* System library. */
+
+#include <sys_defs.h>
+
+/* Utility library. */
+
+#include <name_code.h>
+#include <name_mask.h>
+#include <msg.h>
+
+/* Global library. */
+
+#include <dsn_mask.h>
+
+/* Application-specific. */
+
+static const NAME_MASK dsn_notify_table[] = {
+ "NEVER", DSN_NOTIFY_NEVER,
+ "SUCCESS", DSN_NOTIFY_SUCCESS,
+ "FAILURE", DSN_NOTIFY_FAILURE,
+ "DELAY", DSN_NOTIFY_DELAY,
+ 0, 0,
+};
+
+static const NAME_CODE dsn_ret_table[] = {
+ "FULL", DSN_RET_FULL,
+ "HDRS", DSN_RET_HDRS,
+ 0, 0,
+};
+
+/* dsn_ret_code - string to mask */
+
+int dsn_ret_code(const char *str)
+{
+ return (name_code(dsn_ret_table, NAME_CODE_FLAG_NONE, str));
+}
+
+/* dsn_ret_str - mask to string */
+
+const char *dsn_ret_str(int code)
+{
+ const char *cp;
+
+ if ((cp = str_name_code(dsn_ret_table, code)) == 0)
+ msg_panic("dsn_ret_str: unknown code %d", code);
+ return (cp);
+}
+
+/* dsn_notify_mask - string to mask */
+
+int dsn_notify_mask(const char *str)
+{
+ int mask = name_mask_opt("DSN NOTIFY command", dsn_notify_table,
+ str, NAME_MASK_ANY_CASE | NAME_MASK_RETURN);
+
+ return (DSN_NOTIFY_OK(mask) ? mask : 0);
+}
+
+/* dsn_notify_str - mask to string */
+
+const char *dsn_notify_str(int mask)
+{
+ return (str_name_mask_opt((VSTRING *) 0, "DSN NOTIFY command",
+ dsn_notify_table, mask,
+ NAME_MASK_FATAL | NAME_MASK_COMMA));
+}