diff options
Diffstat (limited to 'src/global/mail_conf_raw.c')
-rw-r--r-- | src/global/mail_conf_raw.c | 145 |
1 files changed, 145 insertions, 0 deletions
diff --git a/src/global/mail_conf_raw.c b/src/global/mail_conf_raw.c new file mode 100644 index 0000000..4c9c5bd --- /dev/null +++ b/src/global/mail_conf_raw.c @@ -0,0 +1,145 @@ +/*++ +/* NAME +/* mail_conf_raw 3 +/* SUMMARY +/* raw string-valued global configuration parameter support +/* SYNOPSIS +/* #include <mail_conf.h> +/* +/* char *get_mail_conf_raw(name, defval, min, max) +/* const char *name; +/* const char *defval; +/* int min; +/* int max; +/* +/* char *get_mail_conf_raw_fn(name, defval, min, max) +/* const char *name; +/* const char *(*defval)(void); +/* int min; +/* int max; +/* +/* void get_mail_conf_raw_table(table) +/* const CONFIG_RAW_TABLE *table; +/* +/* void get_mail_conf_raw_fn_table(table) +/* const CONFIG_RAW_TABLE *table; +/* DESCRIPTION +/* This module implements support for string-valued global +/* configuration parameters that are loaded without $name expansion. +/* +/* get_mail_conf_raw() looks up the named entry in the global +/* configuration dictionary. The default value is returned when +/* no value was found. String results should be passed to myfree() +/* when no longer needed. \fImin\fR is zero or specifies a lower +/* bound on the string length; \fImax\fR is zero or specifies an +/* upper limit on the string length. +/* +/* get_mail_conf_raw_fn() is similar but specifies a function that +/* provides the default value. The function is called only when +/* the default value is used. +/* +/* get_mail_conf_raw_table() and get_mail_conf_raw_fn_table() read +/* lists of variables, as directed by their table arguments. A table +/* must be terminated by a null entry. +/* DIAGNOSTICS +/* Fatal errors: bad string length. +/* SEE ALSO +/* config(3) generic config parameter support +/* 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> +#include <stdlib.h> +#include <string.h> + +/* Utility library. */ + +#include <msg.h> +#include <mymalloc.h> + +/* Global library. */ + +#include "mail_conf.h" + +/* check_mail_conf_raw - validate string length */ + +static void check_mail_conf_raw(const char *name, const char *strval, + int min, int max) +{ + ssize_t len = strlen(strval); + + if (min && len < min) + msg_fatal("bad string length (%ld < %d): %s = %s", + (long) len, min, name, strval); + if (max && len > max) + msg_fatal("bad string length (%ld > %d): %s = %s", + (long) len, max, name, strval); +} + +/* get_mail_conf_raw - evaluate string-valued configuration variable */ + +char *get_mail_conf_raw(const char *name, const char *defval, + int min, int max) +{ + const char *strval; + + if ((strval = mail_conf_lookup(name)) == 0) { + strval = defval; + mail_conf_update(name, strval); + } + check_mail_conf_raw(name, strval, min, max); + return (mystrdup(strval)); +} + +/* get_mail_conf_raw_fn - evaluate string-valued configuration variable */ + +typedef const char *(*stupid_indent_str) (void); + +char *get_mail_conf_raw_fn(const char *name, stupid_indent_str defval, + int min, int max) +{ + const char *strval; + + if ((strval = mail_conf_lookup(name)) == 0) { + strval = defval(); + mail_conf_update(name, strval); + } + check_mail_conf_raw(name, strval, min, max); + return (mystrdup(strval)); +} + +/* get_mail_conf_raw_table - look up table of strings */ + +void get_mail_conf_raw_table(const CONFIG_RAW_TABLE *table) +{ + while (table->name) { + if (table->target[0]) + myfree(table->target[0]); + table->target[0] = get_mail_conf_raw(table->name, table->defval, + table->min, table->max); + table++; + } +} + +/* get_mail_conf_raw_fn_table - look up strings, defaults are functions */ + +void get_mail_conf_raw_fn_table(const CONFIG_RAW_FN_TABLE *table) +{ + while (table->name) { + if (table->target[0]) + myfree(table->target[0]); + table->target[0] = get_mail_conf_raw_fn(table->name, table->defval, + table->min, table->max); + table++; + } +} |