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-rw-r--r--src/global/mail_conf_nint.c232
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diff --git a/src/global/mail_conf_nint.c b/src/global/mail_conf_nint.c
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+/*++
+/* 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++;
+ }
+}