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fix resource leaks in error cases on config parsing and other initializations 

None of this matters - lighttpd will terminate anyway. Still helps the
  code to get cleaner, and makes reviewing output of static analyzers
  easier.

From: Stefan Bühler <stbuehler@web.de>

git-svn-id: svn://svn.lighttpd.net/lighttpd/branches/lighttpd-1.4.x@2947 152afb58-edef-0310-8abb-c4023f1b3aa9
svn/tags/lighttpd-1.4.35
Stefan Bühler 2014-02-14 21:06:19 +00:00
parent bf10267807
commit fba7dd6f43
6 changed files with 39 additions and 23 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
NEWS
View File

@ -13,6 +13,7 @@ NEWS
* add comments for switch fall throughs
* remove logical dead code
* [buffer] fix length check in buffer_is_equal_right_len
* fix resource leaks in error cases on config parsing and other initializations
- 1.4.34
* [mod_auth] explicitly link ssl for SHA1 (fixes #2517)

2
src/configfile.c
View File

@ -1133,6 +1133,8 @@ int config_read(server *srv, const char *fn) {
dcwd->value->used = strlen(dcwd->value->ptr) + 1;
buffer_copy_string_len(dcwd->key, CONST_STR_LEN("var.CWD"));
array_insert_unique(srv->config, (data_unset *)dcwd);
} else {
dcwd->free((data_unset*) dcwd);
}
ret = config_parse_file(srv, &context, fn);

35
src/mod_fastcgi.c
View File

@ -1164,6 +1164,7 @@ SETDEFAULTS_FUNC(mod_fastcgi_set_defaults) {
data_unset *du;
size_t i = 0;
buffer *fcgi_mode = buffer_init();
fcgi_extension_host *host = NULL;
config_values_t cv[] = {
{ "fastcgi.server", NULL, T_CONFIG_LOCAL, T_CONFIG_SCOPE_CONNECTION }, /* 0 */
@ -1191,7 +1192,7 @@ SETDEFAULTS_FUNC(mod_fastcgi_set_defaults) {
ca = ((data_config *)srv->config_context->data[i])->value;
if (0 != config_insert_values_global(srv, ca, cv)) {
return HANDLER_ERROR;
goto error;
}
/*
@ -1206,7 +1207,7 @@ SETDEFAULTS_FUNC(mod_fastcgi_set_defaults) {
log_error_write(srv, __FILE__, __LINE__, "sss",
"unexpected type for key: ", "fastcgi.server", "array of strings");
return HANDLER_ERROR;
goto error;
}
@ -1224,7 +1225,7 @@ SETDEFAULTS_FUNC(mod_fastcgi_set_defaults) {
"unexpected type for key: ", "fastcgi.server",
"[", da->value->data[j]->key, "](string)");
return HANDLER_ERROR;
goto error;
}
/*
@ -1242,8 +1243,6 @@ SETDEFAULTS_FUNC(mod_fastcgi_set_defaults) {
for (n = 0; n < da_ext->value->used; n++) {
data_array *da_host = (data_array *)da_ext->value->data[n];
fcgi_extension_host *host;
config_values_t fcv[] = {
{ "host", NULL, T_CONFIG_STRING, T_CONFIG_SCOPE_CONNECTION }, /* 0 */
{ "docroot", NULL, T_CONFIG_STRING, T_CONFIG_SCOPE_CONNECTION }, /* 1 */
@ -1274,7 +1273,7 @@ SETDEFAULTS_FUNC(mod_fastcgi_set_defaults) {
"fastcgi.server",
"[", da_host->key, "](string)");
return HANDLER_ERROR;
goto error;
}
host = fastcgi_host_init();
@ -1311,7 +1310,7 @@ SETDEFAULTS_FUNC(mod_fastcgi_set_defaults) {
fcv[15].destination = &(host->fix_root_path_name);
if (0 != config_insert_values_internal(srv, da_host->value, fcv)) {
return HANDLER_ERROR;
goto error;
}
if ((!buffer_is_empty(host->host) || host->port) &&
@ -1322,7 +1321,7 @@ SETDEFAULTS_FUNC(mod_fastcgi_set_defaults) {
da_ext->key, " => (",
da_host->key, " ( ...");
return HANDLER_ERROR;
goto error;
}
if (!buffer_is_empty(host->unixsocket)) {
@ -1336,7 +1335,7 @@ SETDEFAULTS_FUNC(mod_fastcgi_set_defaults) {
da_ext->key, " => (",
da_host->key, " ( ...");
return HANDLER_ERROR;
goto error;
}
} else {
/* tcp/ip */
@ -1349,7 +1348,7 @@ SETDEFAULTS_FUNC(mod_fastcgi_set_defaults) {
da_ext->key, " => (",
da_host->key, " ( ...");
return HANDLER_ERROR;
goto error;
} else if (host->port == 0) {
log_error_write(srv, __FILE__, __LINE__, "sbsbsbs",
"port has to be set in:",
@ -1357,7 +1356,7 @@ SETDEFAULTS_FUNC(mod_fastcgi_set_defaults) {
da_ext->key, " => (",
da_host->key, " ( ...");
return HANDLER_ERROR;
goto error;
}
}
@ -1400,13 +1399,14 @@ SETDEFAULTS_FUNC(mod_fastcgi_set_defaults) {
if (fcgi_spawn_connection(srv, p, host, proc)) {
log_error_write(srv, __FILE__, __LINE__, "s",
"[ERROR]: spawning fcgi failed.");
return HANDLER_ERROR;
fastcgi_process_free(proc);
goto error;
}
fastcgi_status_init(srv, p->statuskey, host, proc);
proc->next = host->first;
if (host->first) host->first->prev = proc;
if (host->first) host->first->prev = proc;
host->first = proc;
}
@ -1440,7 +1440,7 @@ SETDEFAULTS_FUNC(mod_fastcgi_set_defaults) {
if (buffer_is_empty(host->docroot)) {
log_error_write(srv, __FILE__, __LINE__, "s",
"ERROR: docroot is required for authorizer mode.");
return HANDLER_ERROR;
goto error;
}
} else {
log_error_write(srv, __FILE__, __LINE__, "sbs",
@ -1451,14 +1451,19 @@ SETDEFAULTS_FUNC(mod_fastcgi_set_defaults) {
/* if extension already exists, take it */
fastcgi_extension_insert(s->exts, da_ext->key, host);
host = NULL;
}
}
}
}
buffer_free(fcgi_mode);
return HANDLER_GO_ON;
error:
if (NULL != host) fastcgi_host_free(host);
buffer_free(fcgi_mode);
return HANDLER_ERROR;
}
static int fcgi_set_state(server *srv, handler_ctx *hctx, fcgi_connection_state_t state) {

2
src/mod_proxy.c
View File

@ -298,6 +298,7 @@ SETDEFAULTS_FUNC(mod_proxy_set_defaults) {
pcv[1].destination = &(df->port);
if (0 != config_insert_values_internal(srv, da_host->value, pcv)) {
df->free((data_unset*) df);
return HANDLER_ERROR;
}
@ -309,6 +310,7 @@ SETDEFAULTS_FUNC(mod_proxy_set_defaults) {
da_host->key,
"host");
df->free((data_unset*) df);
return HANDLER_ERROR;
}

21
src/mod_scgi.c
View File

@ -921,6 +921,7 @@ SETDEFAULTS_FUNC(mod_scgi_set_defaults) {
plugin_data *p = p_d;
data_unset *du;
size_t i = 0;
scgi_extension_host *df = NULL;
config_values_t cv[] = {
{ "scgi.server", NULL, T_CONFIG_LOCAL, T_CONFIG_SCOPE_CONNECTION }, /* 0 */
@ -996,8 +997,6 @@ SETDEFAULTS_FUNC(mod_scgi_set_defaults) {
for (n = 0; n < da_ext->value->used; n++) {
data_array *da_host = (data_array *)da_ext->value->data[n];
scgi_extension_host *df;
config_values_t fcv[] = {
{ "host", NULL, T_CONFIG_STRING, T_CONFIG_SCOPE_CONNECTION }, /* 0 */
{ "docroot", NULL, T_CONFIG_STRING, T_CONFIG_SCOPE_CONNECTION }, /* 1 */
@ -1058,7 +1057,7 @@ SETDEFAULTS_FUNC(mod_scgi_set_defaults) {
if (0 != config_insert_values_internal(srv, da_host->value, fcv)) {
return HANDLER_ERROR;
goto error;
}
if ((!buffer_is_empty(df->host) || df->port) &&
@ -1066,7 +1065,7 @@ SETDEFAULTS_FUNC(mod_scgi_set_defaults) {
log_error_write(srv, __FILE__, __LINE__, "s",
"either host+port or socket");
return HANDLER_ERROR;
goto error;
}
if (!buffer_is_empty(df->unixsocket)) {
@ -1076,7 +1075,7 @@ SETDEFAULTS_FUNC(mod_scgi_set_defaults) {
if (df->unixsocket->used > sizeof(un.sun_path) - 2) {
log_error_write(srv, __FILE__, __LINE__, "s",
"path of the unixdomain socket is too large");
return HANDLER_ERROR;
goto error;
}
} else {
/* tcp/ip */
@ -1090,7 +1089,7 @@ SETDEFAULTS_FUNC(mod_scgi_set_defaults) {
da_host->key,
"host");
return HANDLER_ERROR;
goto error;
} else if (df->port == 0) {
log_error_write(srv, __FILE__, __LINE__, "sbbbs",
"missing key (short):",
@ -1098,7 +1097,7 @@ SETDEFAULTS_FUNC(mod_scgi_set_defaults) {
da_ext->key,
da_host->key,
"port");
return HANDLER_ERROR;
goto error;
}
}
@ -1148,7 +1147,8 @@ SETDEFAULTS_FUNC(mod_scgi_set_defaults) {
if (scgi_spawn_connection(srv, p, df, proc)) {
log_error_write(srv, __FILE__, __LINE__, "s",
"[ERROR]: spawning fcgi failed.");
return HANDLER_ERROR;
scgi_process_free(proc);
goto error;
}
proc->next = df->first;
@ -1179,12 +1179,17 @@ SETDEFAULTS_FUNC(mod_scgi_set_defaults) {
/* if extension already exists, take it */
scgi_extension_insert(s->exts, da_ext->key, df);
df = NULL;
}
}
}
}
return HANDLER_GO_ON;
error:
if (NULL != df) scgi_host_free(df);
return HANDLER_ERROR;
}
static int scgi_set_state(server *srv, handler_ctx *hctx, scgi_connection_state_t state) {

1
src/network.c
View File

@ -925,6 +925,7 @@ int network_init(server *srv) {
buffer_append_long(b, srv->srvconf.port);
if (0 != network_server_init(srv, b, srv->config_storage[0])) {
buffer_free(b);
return -1;
}
buffer_free(b);