/*++ /* 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++; } }