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Stop reversing and re-reversing config lines: keep them in order all the time. Removes needless confusion and fixes bug #50.

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svn:r3305
This commit is contained in:
Nick Mathewson 2005-01-05 06:05:37 +00:00
parent 2e8f15a567
commit b4fedc7f14
2 changed files with 30 additions and 22 deletions
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46
src/or/config.c
View File

@ -173,6 +173,8 @@ static config_var_t config_vars[] = {
/** Largest allowed config line */
#define CONFIG_LINE_T_MAXLEN 4096
static void config_line_append(struct config_line_t **lst,
const char *key, const char *val);
static void option_reset(or_options_t *options, config_var_t *var);
static void options_free(or_options_t *options);
static int option_is_same(or_options_t *o1, or_options_t *o2,const char *name);
@ -421,9 +423,9 @@ config_get_commandlines(int argc, char **argv)
}
/** Helper: allocate a new configuration option mapping 'key' to 'val',
* prepend it to 'front', and return the newly allocated config_line_t */
struct config_line_t *
config_line_prepend(struct config_line_t *front,
* append it to *<b>lst</b>. */
static void
config_line_append(struct config_line_t **lst,
const char *key,
const char *val)
{
@ -432,8 +434,11 @@ config_line_prepend(struct config_line_t *front,
newline = tor_malloc(sizeof(struct config_line_t));
newline->key = tor_strdup(key);
newline->value = tor_strdup(val);
newline->next = front;
return newline;
newline->next = NULL;
while (*lst)
lst = &((*lst)->next);
(*lst) = newline;
}
/** Helper: parse the config string and strdup into key/value
@ -443,17 +448,26 @@ config_line_prepend(struct config_line_t *front,
int
config_get_lines(char *string, struct config_line_t **result)
{
struct config_line_t *list = NULL;
struct config_line_t *list = NULL, **next;
char *k, *v;
next = &list;
do {
string = parse_line_from_str(string, &k, &v);
if (!string) {
config_free_lines(list);
return -1;
}
if (k && v)
list = config_line_prepend(list, k, v);
if (k && v) {
/* This list can get long, so we keep a pointer to the end of it
* rather than using config_line_append over and over and getting n^2
* performance. This is the only really long list. */
*next = tor_malloc(sizeof(struct config_line_t));
(*next)->key = tor_strdup(k);
(*next)->value = tor_strdup(v);
(*next)->next = NULL;
next = &((*next)->next);
}
} while (*string);
*result = list;
@ -596,11 +610,7 @@ config_assign_line(or_options_t *options, struct config_line_t *c, int reset)
case CONFIG_TYPE_LINELIST:
case CONFIG_TYPE_LINELIST_S:
/* Note: this reverses the order that the lines appear in. That's
* just fine, since we build up the list of lines reversed in the
* first place. */
*(struct config_line_t**)lvalue =
config_line_prepend(*(struct config_line_t**)lvalue, c->key, c->value);
config_line_append((struct config_line_t**)lvalue, c->key, c->value);
break;
case CONFIG_TYPE_OBSOLETE:
@ -857,13 +867,13 @@ static void
add_default_trusted_dirservers(or_options_t *options)
{
/* moria1 */
options->DirServers = config_line_prepend(options->DirServers, "DirServer",
config_line_append(&options->DirServers, "DirServer",
"18.244.0.188:9031 FFCB 46DB 1339 DA84 674C 70D7 CB58 6434 C437 0441");
/* moria2 */
options->DirServers = config_line_prepend(options->DirServers, "DirServer",
config_line_append(&options->DirServers, "DirServer",
"18.244.0.114:80 719B E45D E224 B607 C537 07D0 E214 3E2D 423E 74CF");
/* tor26 */
options->DirServers = config_line_prepend(options->DirServers, "DirServer",
config_line_append(&options->DirServers, "DirServer",
"62.116.124.106:9030 847B 1F85 0344 D787 6491 A548 92F9 0493 4E4E B85D");
// "tor.noreply.org:9030 847B 1F85 0344 D787 6491 A548 92F9 0493 4E4E B85D");
}
@ -1181,7 +1191,7 @@ options_validate(or_options_t *options)
/* Special case if no options are given. */
if (!options->Logs) {
options->Logs = config_line_prepend(NULL, "Log", "notice stdout");
config_line_append(&options->Logs, "Log", "notice stdout");
}
if (config_init_logs(options, 1)<0) /* Validate the log(s) */
@ -1925,7 +1935,7 @@ add_single_log_option(or_options_t *options, int minSeverity, int maxSeverity,
}
log(LOG_WARN, "The old LogLevel/LogFile/DebugLogFile/SysLog options are deprecated, and will go away soon. Your new torrc line should be: 'Log %s'", buf);
options->Logs = config_line_prepend(options->Logs, "Log", buf);
config_line_append(&options->Logs, "Log", buf);
return 0;
}

2
src/or/or.h
View File

@ -1130,8 +1130,6 @@ void addr_policy_free(addr_policy_t *p);
int config_option_is_recognized(const char *key);
struct config_line_t *config_get_assigned_option(or_options_t *options,
const char *key);
struct config_line_t *config_line_prepend(struct config_line_t *front,
const char *key, const char *val);
char *config_dump_options(or_options_t *options, int minimal);
int save_current_config(void);