1 files changed, 232 insertions, 0 deletions
diff --git a/src/global/mail_conf_nint.c b/src/global/mail_conf_nint.c
new file mode 100644
index 0000000..e0bd7a1
--- /dev/null
+++ b/src/global/mail_conf_nint.c
@@ -0,0 +1,232 @@
+/*++
+/* NAME
+/*	mail_conf_nint 3
+/* SUMMARY
+/*	integer-valued configuration parameter support
+/* SYNOPSIS
+/*	#include <mail_conf.h>
+/*
+/*	int	get_mail_conf_nint(name, defval, min, max);
+/*	const char *name;
+/*	const char *defval;
+/*	int	min;
+/*	int	max;
+/*
+/*	int	get_mail_conf_nint_fn(name, defval, min, max);
+/*	const char *name;
+/*	char	*(*defval)();
+/*	int	min;
+/*	int	max;
+/*
+/*	void	set_mail_conf_nint(name, value)
+/*	const char *name;
+/*	const char *value;
+/*
+/*	void	set_mail_conf_nint_int(name, value)
+/*	const char *name;
+/*	int	value;
+/*
+/*	void	get_mail_conf_nint_table(table)
+/*	const CONFIG_NINT_TABLE *table;
+/*
+/*	void	get_mail_conf_nint_fn_table(table)
+/*	const CONFIG_NINT_TABLE *table;
+/* AUXILIARY FUNCTIONS
+/*	int	get_mail_conf_nint2(name1, name2, defval, min, max);
+/*	const char *name1;
+/*	const char *name2;
+/*	int	defval;
+/*	int	min;
+/*	int	max;
+/* DESCRIPTION
+/*	This module implements configuration parameter support
+/*	for integer values. Unlike mail_conf_int, the default
+/*	is a string, which can be subjected to macro expansion.
+/*
+/*	get_mail_conf_nint() looks up the named entry in the global
+/*	configuration dictionary. The default value is returned
+/*	when no value was found.
+/*	\fImin\fR is zero or specifies a lower limit on the integer
+/*	value or string length; \fImax\fR is zero or specifies an
+/*	upper limit on the integer value or string length.
+/*
+/*	get_mail_conf_nint_fn() is similar but specifies a function that
+/*	provides the default value. The function is called only
+/*	when the default value is needed.
+/*
+/*	set_mail_conf_nint() updates the named entry in the global
+/*	configuration dictionary. This has no effect on values that
+/*	have been looked up earlier via the get_mail_conf_XXX() routines.
+/*
+/*	get_mail_conf_nint_table() and get_mail_conf_nint_fn_table() initialize
+/*	lists of variables, as directed by their table arguments. A table
+/*	must be terminated by a null entry.
+/*
+/*	get_mail_conf_nint2() concatenates the two names and is otherwise
+/*	identical to get_mail_conf_nint().
+/* DIAGNOSTICS
+/*	Fatal errors: malformed numerical value.
+/* SEE ALSO
+/*	config(3) general configuration
+/*	mail_conf_str(3) string-valued configuration parameters
+/* 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
+/*
+/*	Wietse Venema
+/*	Google, Inc.
+/*	111 8th Avenue
+/*	New York, NY 10011, USA
+/*--*/
+
+/* System library. */
+
+#include <sys_defs.h>
+#include <stdlib.h>
+#include <stdio.h>			/* BUFSIZ */
+#include <errno.h>
+
+/* Utility library. */
+
+#include <msg.h>
+#include <mymalloc.h>
+#include <dict.h>
+#include <stringops.h>
+
+/* Global library. */
+
+#include "mail_conf.h"
+
+/* convert_mail_conf_nint - look up and convert integer parameter value */
+
+static int convert_mail_conf_nint(const char *name, int *intval)
+{
+    const char *strval;
+    char   *end;
+    long    longval;
+
+    if ((strval = mail_conf_lookup_eval(name)) != 0) {
+	errno = 0;
+	*intval = longval = strtol(strval, &end, 10);
+	if (*strval == 0 || *end != 0 || errno == ERANGE || longval != *intval)
+	    msg_fatal("bad numerical configuration: %s = %s", name, strval);
+	return (1);
+    }
+    return (0);
+}
+
+/* check_mail_conf_nint - validate integer value */
+
+static void check_mail_conf_nint(const char *name, int intval, int min, int max)
+{
+    if (min && intval < min)
+	msg_fatal("invalid %s parameter value %d < %d", name, intval, min);
+    if (max && intval > max)
+	msg_fatal("invalid %s parameter value %d > %d", name, intval, max);
+}
+
+/* get_mail_conf_nint - evaluate integer-valued configuration variable */
+
+int     get_mail_conf_nint(const char *name, const char *defval, int min, int max)
+{
+    int     intval;
+
+    if (convert_mail_conf_nint(name, &intval) == 0)
+	set_mail_conf_nint(name, defval);
+    if (convert_mail_conf_nint(name, &intval) == 0)
+	msg_panic("get_mail_conf_nint: parameter not found: %s", name);
+    check_mail_conf_nint(name, intval, min, max);
+    return (intval);
+}
+
+/* get_mail_conf_nint2 - evaluate integer-valued configuration variable */
+
+int     get_mail_conf_nint2(const char *name1, const char *name2, int defval,
+			            int min, int max)
+{
+    int     intval;
+    char   *name;
+
+    name = concatenate(name1, name2, (char *) 0);
+    if (convert_mail_conf_nint(name, &intval) == 0)
+	set_mail_conf_nint_int(name, defval);
+    if (convert_mail_conf_nint(name, &intval) == 0)
+	msg_panic("get_mail_conf_nint2: parameter not found: %s", name);
+    check_mail_conf_nint(name, intval, min, max);
+    myfree(name);
+    return (intval);
+}
+
+/* get_mail_conf_nint_fn - evaluate integer-valued configuration variable */
+
+typedef const char *(*stupid_indent_int) (void);
+
+int     get_mail_conf_nint_fn(const char *name, stupid_indent_int defval,
+			              int min, int max)
+{
+    int     intval;
+
+    if (convert_mail_conf_nint(name, &intval) == 0)
+	set_mail_conf_nint(name, defval());
+    if (convert_mail_conf_nint(name, &intval) == 0)
+	msg_panic("get_mail_conf_nint_fn: parameter not found: %s", name);
+    check_mail_conf_nint(name, intval, min, max);
+    return (intval);
+}
+
+/* set_mail_conf_nint - update integer-valued configuration dictionary entry */
+
+void    set_mail_conf_nint(const char *name, const char *value)
+{
+    mail_conf_update(name, value);
+}
+
+/* set_mail_conf_nint_int - update integer-valued configuration dictionary entry */
+
+void    set_mail_conf_nint_int(const char *name, int value)
+{
+    const char myname[] = "set_mail_conf_nint_int";
+    char    buf[BUFSIZ];		/* yeah! crappy code! */
+
+#ifndef NO_SNPRINTF
+    ssize_t ret;
+
+    ret = snprintf(buf, sizeof(buf), "%d", value);
+    if (ret < 0)
+	msg_panic("%s: output error for %%d", myname);
+    if (ret >= sizeof(buf))
+	msg_panic("%s: output for %%d exceeds space %ld",
+		  myname, (long) sizeof(buf));
+#else
+    sprintf(buf, "%d", value);			/* yeah! more crappy code! */
+#endif
+    mail_conf_update(name, buf);
+}
+
+/* get_mail_conf_nint_table - look up table of integers */
+
+void    get_mail_conf_nint_table(const CONFIG_NINT_TABLE *table)
+{
+    while (table->name) {
+	table->target[0] = get_mail_conf_nint(table->name, table->defval,
+					      table->min, table->max);
+	table++;
+    }
+}
+
+/* get_mail_conf_nint_fn_table - look up integers, defaults are functions */
+
+void    get_mail_conf_nint_fn_table(const CONFIG_NINT_FN_TABLE *table)
+{
+    while (table->name) {
+	table->target[0] = get_mail_conf_nint_fn(table->name, table->defval,
+						 table->min, table->max);
+	table++;
+    }
+}