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fix bug reported by gozu: if we get a linelist or linelist_s

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config option from the torrc and it has no value, warn and
skip rather than silently resetting it to its default.


svn:r6125
This commit is contained in:
Roger Dingledine 2006-03-11 18:40:33 +00:00
parent c8e2a051ac
commit 0bd46086c3
1 changed files with 19 additions and 6 deletions
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25
src/or/config.c
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@ -992,7 +992,7 @@ config_find_option(config_format_t *fmt, const char *key)
return &fmt->vars[i];
}
}
/* Okay, unrecognized options */
/* Okay, unrecognized option */
return NULL;
}
@ -1143,9 +1143,19 @@ config_assign_line(config_format_t *fmt, or_options_t *options,
c->key = tor_strdup(var->name);
}
if (!strlen(c->value)) { /* reset or clear it, then return */
if (!clear_first) /* not already cleared */
option_reset(fmt, options, var, use_defaults);
if (!strlen(c->value)) {
/* reset or clear it, then return */
if (!clear_first) {
if (var->type == CONFIG_TYPE_LINELIST ||
var->type == CONFIG_TYPE_LINELIST_S) {
/* We got an empty linelist from the torrc or commandline.
As a special case, call this an error. Warn and ignore. */
log_warn(LD_CONFIG,
"Linelist option '%s' has no value. Skipping.", c->key);
} else { /* not already cleared */
option_reset(fmt, options, var, use_defaults);
}
}
return 0;
}
@ -1330,6 +1340,9 @@ get_assigned_option(config_format_t *fmt, or_options_t *options,
* 0 1 "set to null first"
* 1 1 "set to defaults first"
* Return 0 on success, -1 on bad key, -2 on bad value.
*
* As an additional special case, if a LINELIST config option has
* no value and clear_first is 0, then warn and ignore it.
*/
/*
@ -1700,8 +1713,8 @@ options_dup(config_format_t *fmt, or_options_t *old)
line = get_assigned_option(fmt, old, fmt->vars[i].name);
if (line) {
if (config_assign(fmt, newopts, line, 0, 0) < 0) {
log_warn(LD_BUG, "Bug: config_get_assigned_option() generated "
"something we couldn't config_assign().");
log_err(LD_BUG, "Bug: config_get_assigned_option() generated "
"something we couldn't config_assign().");
tor_assert(0);
}
}