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Code Issues Releases Wiki Activity

address unchecked return values

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This commit is contained in:
Mark Andrews 2018-11-16 23:18:51 +11:00
parent 867180e462
commit ccfd577715
1 changed files with 73 additions and 18 deletions
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91
bin/named/server.c
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@ -305,6 +305,13 @@ typedef struct catz_chgzone_event {
bool mod;
} catz_chgzone_event_t;
typedef struct {
unsigned int magic;
#define DZARG_MAGIC ISC_MAGIC('D', 'z', 'a', 'r')
isc_buffer_t **text;
isc_result_t result;
} ns_dzarg_t;
/*
* These zones should not leak onto the Internet.
*/
@ -7609,11 +7616,11 @@ data_to_cfg(dns_view_t *view, MDB_val *key, MDB_val *data,
goto cleanup;
}
putstr(text, "zone ");
putmem(text, (const void *) zone_name, zone_name_len);
putstr(text, " ");
putmem(text, (const void *) zone_config, zone_config_len);
putstr(text, ";\n");
CHECK(putstr(text, "zone "));
CHECK(putmem(text, (const void *) zone_name, zone_name_len));
CHECK(putstr(text, " "));
CHECK(putmem(text, (const void *) zone_config, zone_config_len));
CHECK(putstr(text, ";\n"));
cfg_parser_reset(named_g_addparser);
result = cfg_parse_buffer3(named_g_addparser, *text, zone_name, 0,
@ -10823,10 +10830,10 @@ named_server_dumpdb(named_server_t *server, isc_lex_t *lex,
}
if (ptr != NULL) {
if (!found) {
putstr(text, "view '");
putstr(text, ptr);
putstr(text, "' not found");
putnull(text);
CHECK(putstr(text, "view '"));
CHECK(putstr(text, ptr));
CHECK(putstr(text, "' not found"));
CHECK(putnull(text));
result = ISC_R_NOTFOUND;
dumpdone(dctx, result);
return (result);
@ -12114,9 +12121,15 @@ nzd_setkey(MDB_val *key, dns_name_t *name, char *namebuf, size_t buflen) {
static void
dumpzone(void *arg, const char *buf, int len) {
isc_buffer_t **text = arg;
ns_dzarg_t *dzarg = arg;
isc_result_t result;
putmem(text, buf, len);
REQUIRE(dzarg != NULL && ISC_MAGIC_VALID(dzarg, DZARG_MAGIC));
result = putmem(dzarg->text, buf, len);
if (result != ISC_R_SUCCESS && dzarg->result == ISC_R_SUCCESS) {
dzarg->result = result;
}
}
static isc_result_t
@ -12130,6 +12143,7 @@ nzd_save(MDB_txn **txnp, MDB_dbi dbi, dns_zone_t *zone,
isc_buffer_t *text = NULL;
char namebuf[1024];
MDB_val key, data;
ns_dzarg_t dzarg;
view = dns_zone_getview(zone);
@ -12181,7 +12195,21 @@ nzd_save(MDB_txn **txnp, MDB_dbi dbi, dns_zone_t *zone,
goto cleanup;
}
cfg_printx(zoptions, CFG_PRINTER_ONELINE, dumpzone, &text);
dzarg.magic = DZARG_MAGIC;
dzarg.text = &text;
dzarg.result = ISC_R_SUCCESS;
cfg_printx(zoptions, CFG_PRINTER_ONELINE, dumpzone, &dzarg);
if (dzarg.result != ISC_R_SUCCESS) {
isc_log_write(named_g_lctx,
NAMED_LOGCATEGORY_GENERAL,
NAMED_LOGMODULE_SERVER,
ISC_LOG_ERROR,
"Error writing zone config to "
"buffer in nzd_save(): %s",
isc_result_totext(result));
result = dzarg.result;
goto cleanup;
}
data.mv_data = isc_buffer_base(text);
data.mv_size = isc_buffer_usedlength(text);
@ -12460,6 +12488,7 @@ migrate_nzf(dns_view_t *view) {
MDB_txn *txn = NULL;
MDB_dbi dbi;
MDB_val key, data;
ns_dzarg_t dzarg;
/*
* If NZF file doesn't exist, or NZD DB exists and already
@ -12549,7 +12578,21 @@ migrate_nzf(dns_view_t *view) {
}
isc_buffer_clear(text);
cfg_printx(zoptions, CFG_PRINTER_ONELINE, dumpzone, &text);
dzarg.magic = DZARG_MAGIC;
dzarg.text = &text;
dzarg.result = ISC_R_SUCCESS;
cfg_printx(zoptions, CFG_PRINTER_ONELINE, dumpzone, &dzarg);
if (dzarg.result != ISC_R_SUCCESS) {
isc_log_write(named_g_lctx,
NAMED_LOGCATEGORY_GENERAL,
NAMED_LOGMODULE_SERVER,
ISC_LOG_ERROR,
"Error writing zone config to "
"buffer in migrate_nzf(): %s",
isc_result_totext(result));
result = dzarg.result;
goto cleanup;
}
data.mv_data = isc_buffer_base(text);
data.mv_size = isc_buffer_usedlength(text);
@ -13653,8 +13696,14 @@ find_name_in_list_from_map(const cfg_obj_t *config,
static void
emitzone(void *arg, const char *buf, int len) {
isc_buffer_t **tpp = arg;
putmem(tpp, buf, len);
ns_dzarg_t *dzarg = arg;
isc_result_t result;
REQUIRE(dzarg != NULL && ISC_MAGIC_VALID(dzarg, DZARG_MAGIC));
result = putmem(dzarg->text, buf, len);
if (result != ISC_R_SUCCESS && dzarg->result == ISC_R_SUCCESS) {
dzarg->result = result;
}
}
/*
@ -13676,6 +13725,7 @@ named_server_showzone(named_server_t *server, isc_lex_t *lex,
cfg_obj_t *nzconfig = NULL;
#endif /* HAVE_LMDB */
bool added, redirect;
ns_dzarg_t dzarg;
/* Parse parameters */
CHECK(zone_from_args(server, lex, NULL, &zone, zonename,
@ -13735,9 +13785,14 @@ named_server_showzone(named_server_t *server, isc_lex_t *lex,
if (zconfig == NULL)
CHECK(ISC_R_NOTFOUND);
putstr(text, "zone ");
cfg_printx(zconfig, CFG_PRINTER_ONELINE, emitzone, text);
putstr(text, ";");
CHECK(putstr(text, "zone "));
dzarg.magic = DZARG_MAGIC;
dzarg.text = text;
dzarg.result = ISC_R_SUCCESS;
cfg_printx(zconfig, CFG_PRINTER_ONELINE, emitzone, &dzarg);
CHECK(dzarg.result);
CHECK(putstr(text, ";"));
result = ISC_R_SUCCESS;