diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 01:46:30 +0000 |
---|---|---|
committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 01:46:30 +0000 |
commit | b5896ba9f6047e7031e2bdee0622d543e11a6734 (patch) | |
tree | fd7b460593a2fee1be579bec5697e6d887ea3421 /src/global/mail_conf_time.c | |
parent | Initial commit. (diff) | |
download | postfix-b5896ba9f6047e7031e2bdee0622d543e11a6734.tar.xz postfix-b5896ba9f6047e7031e2bdee0622d543e11a6734.zip |
Adding upstream version 3.4.23.upstream/3.4.23upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | src/global/mail_conf_time.c | 246 |
1 files changed, 246 insertions, 0 deletions
diff --git a/src/global/mail_conf_time.c b/src/global/mail_conf_time.c new file mode 100644 index 0000000..7829c89 --- /dev/null +++ b/src/global/mail_conf_time.c @@ -0,0 +1,246 @@ +/*++ +/* NAME +/* mail_conf_time 3 +/* SUMMARY +/* time interval configuration parameter support +/* SYNOPSIS +/* #include <mail_conf.h> +/* +/* int get_mail_conf_time(name, defval, min, max); +/* const char *name; +/* const char *defval; +/* int min; +/* int max; +/* +/* void set_mail_conf_time(name, value) +/* const char *name; +/* const char *value; +/* +/* void set_mail_conf_time_int(name, value) +/* const char *name; +/* int value; +/* +/* void get_mail_conf_time_table(table) +/* const CONFIG_TIME_TABLE *table; +/* AUXILIARY FUNCTIONS +/* int get_mail_conf_time2(name1, name2, defval, def_unit, min, max); +/* const char *name1; +/* const char *name2; +/* int defval; +/* int def_unit; +/* int min; +/* int max; +/* +/* void check_mail_conf_time(name, intval, min, max) +/* const char *name; +/* int intval; +/* int min; +/* int max; +/* DESCRIPTION +/* This module implements configuration parameter support +/* for time interval values. The conversion routines understand +/* one-letter suffixes to specify an explicit time unit: s +/* (seconds), m (minutes), h (hours), d (days) or w (weeks). +/* Internally, time is represented in seconds. +/* +/* get_mail_conf_time() looks up the named entry in the global +/* configuration dictionary. The default value is returned +/* when no value was found. \fIdef_unit\fR supplies the default +/* time unit for numbers numbers specified without explicit unit. +/* \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. +/* +/* set_mail_conf_time() 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_time_table() and get_mail_conf_time_fn_table() initialize +/* lists of variables, as directed by their table arguments. A table +/* must be terminated by a null entry. +/* +/* check_mail_conf_time() terminates the program with a fatal +/* runtime error when the time does not meet its requirements. +/* DIAGNOSTICS +/* Fatal errors: malformed numerical value, unknown time unit. +/* BUGS +/* Values and defaults are given in any unit; upper and lower +/* bounds are given in seconds. +/* 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 <ctype.h> + +/* Utility library. */ + +#include <msg.h> +#include <mymalloc.h> +#include <dict.h> +#include <stringops.h> + +/* Global library. */ + +#include "conv_time.h" +#include "mail_conf.h" + +/* convert_mail_conf_time - look up and convert integer parameter value */ + +static int convert_mail_conf_time(const char *name, int *intval, int def_unit) +{ + const char *strval; + + if ((strval = mail_conf_lookup_eval(name)) == 0) + return (0); + if (conv_time(strval, intval, def_unit) == 0) + msg_fatal("parameter %s: bad time value or unit: %s", name, strval); + return (1); +} + +/* check_mail_conf_time - validate integer value */ + +void check_mail_conf_time(const char *name, int intval, int min, int max) +{ + if (min && intval < min) + msg_fatal("invalid %s: %d (min %d)", name, intval, min); + if (max && intval > max) + msg_fatal("invalid %s: %d (max %d)", name, intval, max); +} + +/* get_def_time_unit - extract time unit from default value */ + +static int get_def_time_unit(const char *name, const char *defval) +{ + const char *cp; + + for (cp = mail_conf_eval(defval); /* void */ ; cp++) { + if (*cp == 0) + msg_panic("parameter %s: missing time unit in default value: %s", + name, defval); + if (ISALPHA(*cp)) { +#if 0 + if (cp[1] != 0) + msg_panic("parameter %s: bad time unit in default value: %s", + name, defval); +#endif + return (*cp); + } + } +} + +/* get_mail_conf_time - evaluate integer-valued configuration variable */ + +int get_mail_conf_time(const char *name, const char *defval, int min, int max) +{ + int intval; + int def_unit; + + def_unit = get_def_time_unit(name, defval); + if (convert_mail_conf_time(name, &intval, def_unit) == 0) + set_mail_conf_time(name, defval); + if (convert_mail_conf_time(name, &intval, def_unit) == 0) + msg_panic("get_mail_conf_time: parameter not found: %s", name); + check_mail_conf_time(name, intval, min, max); + return (intval); +} + +/* get_mail_conf_time2 - evaluate integer-valued configuration variable */ + +int get_mail_conf_time2(const char *name1, const char *name2, + int defval, int def_unit, int min, int max) +{ + int intval; + char *name; + + name = concatenate(name1, name2, (char *) 0); + if (convert_mail_conf_time(name, &intval, def_unit) == 0) + set_mail_conf_time_int(name, defval); + if (convert_mail_conf_time(name, &intval, def_unit) == 0) + msg_panic("get_mail_conf_time2: parameter not found: %s", name); + check_mail_conf_time(name, intval, min, max); + myfree(name); + return (intval); +} + +/* set_mail_conf_time - update integer-valued configuration dictionary entry */ + +void set_mail_conf_time(const char *name, const char *value) +{ + mail_conf_update(name, value); +} + +/* set_mail_conf_time_int - update integer-valued configuration dictionary entry */ + +void set_mail_conf_time_int(const char *name, int value) +{ + char buf[BUFSIZ]; /* yeah! crappy code! */ + + sprintf(buf, "%ds", value); /* yeah! more crappy code! */ + mail_conf_update(name, buf); +} + +/* get_mail_conf_time_table - look up table of integers */ + +void get_mail_conf_time_table(const CONFIG_TIME_TABLE *table) +{ + while (table->name) { + table->target[0] = get_mail_conf_time(table->name, table->defval, + table->min, table->max); + table++; + } +} + +#ifdef TEST + + /* + * Stand-alone driver program for regression testing. + */ +#include <vstream.h> + +int main(int unused_argc, char **unused_argv) +{ + static int seconds; + static int minutes; + static int hours; + static int days; + static int weeks; + static const CONFIG_TIME_TABLE time_table[] = { + "seconds", "10s", &seconds, 0, 0, + "minutes", "10m", &minutes, 0, 0, + "hours", "10h", &hours, 0, 0, + "days", "10d", &days, 0, 0, + "weeks", "10w", &weeks, 0, 0, + 0, + }; + + get_mail_conf_time_table(time_table); + vstream_printf("10 seconds = %d\n", seconds); + vstream_printf("10 minutes = %d\n", minutes); + vstream_printf("10 hours = %d\n", hours); + vstream_printf("10 days = %d\n", days); + vstream_printf("10 weeks = %d\n", weeks); + vstream_fflush(VSTREAM_OUT); + return (0); +} + +#endif |