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-rw-r--r--src/global/mail_conf_long.c213
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diff --git a/src/global/mail_conf_long.c b/src/global/mail_conf_long.c
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+/*++
+/* NAME
+/* mail_conf_long 3
+/* SUMMARY
+/* long integer-valued configuration parameter support
+/* SYNOPSIS
+/* #include <mail_conf.h>
+/*
+/* int get_mail_conf_long(name, defval, min, max);
+/* const char *name;
+/* long defval;
+/* long min;
+/* long max;
+/*
+/* int get_mail_conf_long_fn(name, defval, min, max);
+/* const char *name;
+/* long (*defval)(void);
+/* long min;
+/* long max;
+/*
+/* void set_mail_conf_long(name, value)
+/* const char *name;
+/* long value;
+/*
+/* void get_mail_conf_long_table(table)
+/* const CONFIG_LONG_TABLE *table;
+/*
+/* void get_mail_conf_long_fn_table(table)
+/* const CONFIG_LONG_TABLE *table;
+/* AUXILIARY FUNCTIONS
+/* int get_mail_conf_long2(name1, name2, defval, min, max);
+/* const char *name1;
+/* const char *name2;
+/* long defval;
+/* long min;
+/* long max;
+/* DESCRIPTION
+/* This module implements configuration parameter support
+/* for long integer values.
+/*
+/* get_mail_conf_long() 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 long
+/* integer value; \fImax\fR is zero or specifies an upper limit
+/* on the long integer value.
+/*
+/* get_mail_conf_long_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_long() 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_long_table() and get_mail_conf_long_fn_table() initialize
+/* lists of variables, as directed by their table arguments. A table
+/* must be terminated by a null entry.
+/*
+/* get_mail_conf_long2() concatenates the two names and is otherwise
+/* identical to get_mail_conf_long().
+/* 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_long - look up and convert integer parameter value */
+
+static int convert_mail_conf_long(const char *name, long *longval)
+{
+ const char *strval;
+ char *end;
+
+ if ((strval = mail_conf_lookup_eval(name)) != 0) {
+ errno = 0;
+ *longval = strtol(strval, &end, 10);
+ if (*strval == 0 || *end != 0 || errno == ERANGE)
+ msg_fatal("bad numerical configuration: %s = %s", name, strval);
+ return (1);
+ }
+ return (0);
+}
+
+/* check_mail_conf_long - validate integer value */
+
+static void check_mail_conf_long(const char *name, long longval, long min, long max)
+{
+ if (min && longval < min)
+ msg_fatal("invalid %s parameter value %ld < %ld", name, longval, min);
+ if (max && longval > max)
+ msg_fatal("invalid %s parameter value %ld > %ld", name, longval, max);
+}
+
+/* get_mail_conf_long - evaluate integer-valued configuration variable */
+
+long get_mail_conf_long(const char *name, long defval, long min, long max)
+{
+ long longval;
+
+ if (convert_mail_conf_long(name, &longval) == 0)
+ set_mail_conf_long(name, longval = defval);
+ check_mail_conf_long(name, longval, min, max);
+ return (longval);
+}
+
+/* get_mail_conf_long2 - evaluate integer-valued configuration variable */
+
+long get_mail_conf_long2(const char *name1, const char *name2, long defval,
+ long min, long max)
+{
+ long longval;
+ char *name;
+
+ name = concatenate(name1, name2, (char *) 0);
+ if (convert_mail_conf_long(name, &longval) == 0)
+ set_mail_conf_long(name, longval = defval);
+ check_mail_conf_long(name, longval, min, max);
+ myfree(name);
+ return (longval);
+}
+
+/* get_mail_conf_long_fn - evaluate integer-valued configuration variable */
+
+typedef long (*stupid_indent_long) (void);
+
+long get_mail_conf_long_fn(const char *name, stupid_indent_long defval,
+ long min, long max)
+{
+ long longval;
+
+ if (convert_mail_conf_long(name, &longval) == 0)
+ set_mail_conf_long(name, longval = defval());
+ check_mail_conf_long(name, longval, min, max);
+ return (longval);
+}
+
+/* set_mail_conf_long - update integer-valued configuration dictionary entry */
+
+void set_mail_conf_long(const char *name, long value)
+{
+ const char myname[] = "set_mail_conf_long";
+ char buf[BUFSIZ]; /* yeah! crappy code! */
+
+#ifndef NO_SNPRINTF
+ ssize_t ret;
+
+ ret = snprintf(buf, sizeof(buf), "%ld", value);
+ if (ret < 0)
+ msg_panic("%s: output error for %%ld", myname);
+ if (ret >= sizeof(buf))
+ msg_panic("%s: output for %%ld exceeds space %ld",
+ myname, (long) sizeof(buf));
+#else
+ sprintf(buf, "%ld", value); /* yeah! more crappy code! */
+#endif
+ mail_conf_update(name, buf);
+}
+
+/* get_mail_conf_long_table - look up table of integers */
+
+void get_mail_conf_long_table(const CONFIG_LONG_TABLE *table)
+{
+ while (table->name) {
+ table->target[0] = get_mail_conf_long(table->name, table->defval,
+ table->min, table->max);
+ table++;
+ }
+}
+
+/* get_mail_conf_long_fn_table - look up integers, defaults are functions */
+
+void get_mail_conf_long_fn_table(const CONFIG_LONG_FN_TABLE *table)
+{
+ while (table->name) {
+ table->target[0] = get_mail_conf_long_fn(table->name, table->defval,
+ table->min, table->max);
+ table++;
+ }
+}