From: Jeremy Harris Date: Wed, 8 Jan 2020 10:36:40 +0000 (+0000) Subject: coding standards X-Git-Tag: exim-4_94_RC0~170 X-Git-Url: https://vcs.fsf.org/?a=commitdiff_plain;h=2fa25efce2a183e8886d66e2f1a0ae83ac964d8e;p=exim.git coding standards --- diff --git a/src/src/drtables.c b/src/src/drtables.c index 635c01be4..578ddf370 100644 --- a/src/src/drtables.c +++ b/src/src/drtables.c @@ -624,184 +624,190 @@ void init_lookup_list(void) { #ifdef LOOKUP_MODULE_DIR - DIR *dd; - struct dirent *ent; - int countmodules = 0; - int moduleerrors = 0; +DIR *dd; +struct dirent *ent; +int countmodules = 0; +int moduleerrors = 0; #endif - static BOOL lookup_list_init_done = FALSE; - rmark reset_point; +static BOOL lookup_list_init_done = FALSE; +rmark reset_point; - if (lookup_list_init_done) - return; - reset_point = store_mark(); - lookup_list_init_done = TRUE; +if (lookup_list_init_done) + return; +reset_point = store_mark(); +lookup_list_init_done = TRUE; #if defined(LOOKUP_CDB) && LOOKUP_CDB!=2 - addlookupmodule(NULL, &cdb_lookup_module_info); +addlookupmodule(NULL, &cdb_lookup_module_info); #endif #if defined(LOOKUP_DBM) && LOOKUP_DBM!=2 - addlookupmodule(NULL, &dbmdb_lookup_module_info); +addlookupmodule(NULL, &dbmdb_lookup_module_info); #endif #if defined(LOOKUP_DNSDB) && LOOKUP_DNSDB!=2 - addlookupmodule(NULL, &dnsdb_lookup_module_info); +addlookupmodule(NULL, &dnsdb_lookup_module_info); #endif #if defined(LOOKUP_DSEARCH) && LOOKUP_DSEARCH!=2 - addlookupmodule(NULL, &dsearch_lookup_module_info); +addlookupmodule(NULL, &dsearch_lookup_module_info); #endif #if defined(LOOKUP_IBASE) && LOOKUP_IBASE!=2 - addlookupmodule(NULL, &ibase_lookup_module_info); +addlookupmodule(NULL, &ibase_lookup_module_info); #endif #ifdef LOOKUP_LDAP - addlookupmodule(NULL, &ldap_lookup_module_info); +addlookupmodule(NULL, &ldap_lookup_module_info); #endif #ifdef LOOKUP_JSON - addlookupmodule(NULL, &json_lookup_module_info); +addlookupmodule(NULL, &json_lookup_module_info); #endif #if defined(LOOKUP_LSEARCH) && LOOKUP_LSEARCH!=2 - addlookupmodule(NULL, &lsearch_lookup_module_info); +addlookupmodule(NULL, &lsearch_lookup_module_info); #endif #if defined(LOOKUP_MYSQL) && LOOKUP_MYSQL!=2 - addlookupmodule(NULL, &mysql_lookup_module_info); +addlookupmodule(NULL, &mysql_lookup_module_info); #endif #if defined(LOOKUP_NIS) && LOOKUP_NIS!=2 - addlookupmodule(NULL, &nis_lookup_module_info); +addlookupmodule(NULL, &nis_lookup_module_info); #endif #if defined(LOOKUP_NISPLUS) && LOOKUP_NISPLUS!=2 - addlookupmodule(NULL, &nisplus_lookup_module_info); +addlookupmodule(NULL, &nisplus_lookup_module_info); #endif #if defined(LOOKUP_ORACLE) && LOOKUP_ORACLE!=2 - addlookupmodule(NULL, &oracle_lookup_module_info); +addlookupmodule(NULL, &oracle_lookup_module_info); #endif #if defined(LOOKUP_PASSWD) && LOOKUP_PASSWD!=2 - addlookupmodule(NULL, &passwd_lookup_module_info); +addlookupmodule(NULL, &passwd_lookup_module_info); #endif #if defined(LOOKUP_PGSQL) && LOOKUP_PGSQL!=2 - addlookupmodule(NULL, &pgsql_lookup_module_info); +addlookupmodule(NULL, &pgsql_lookup_module_info); #endif #if defined(LOOKUP_REDIS) && LOOKUP_REDIS!=2 - addlookupmodule(NULL, &redis_lookup_module_info); +addlookupmodule(NULL, &redis_lookup_module_info); #endif #ifdef EXPERIMENTAL_LMDB - addlookupmodule(NULL, &lmdb_lookup_module_info); +addlookupmodule(NULL, &lmdb_lookup_module_info); #endif #ifdef SUPPORT_SPF - addlookupmodule(NULL, &spf_lookup_module_info); +addlookupmodule(NULL, &spf_lookup_module_info); #endif #if defined(LOOKUP_SQLITE) && LOOKUP_SQLITE!=2 - addlookupmodule(NULL, &sqlite_lookup_module_info); +addlookupmodule(NULL, &sqlite_lookup_module_info); #endif #if defined(LOOKUP_TESTDB) && LOOKUP_TESTDB!=2 - addlookupmodule(NULL, &testdb_lookup_module_info); +addlookupmodule(NULL, &testdb_lookup_module_info); #endif #if defined(LOOKUP_WHOSON) && LOOKUP_WHOSON!=2 - addlookupmodule(NULL, &whoson_lookup_module_info); +addlookupmodule(NULL, &whoson_lookup_module_info); #endif #ifdef LOOKUP_MODULE_DIR - dd = opendir(LOOKUP_MODULE_DIR); - if (dd == NULL) { - DEBUG(D_lookup) debug_printf("Couldn't open %s: not loading lookup modules\n", LOOKUP_MODULE_DIR); - log_write(0, LOG_MAIN, "Couldn't open %s: not loading lookup modules\n", LOOKUP_MODULE_DIR); +if (!(dd = opendir(LOOKUP_MODULE_DIR))) + { + DEBUG(D_lookup) debug_printf("Couldn't open %s: not loading lookup modules\n", LOOKUP_MODULE_DIR); + log_write(0, LOG_MAIN, "Couldn't open %s: not loading lookup modules\n", LOOKUP_MODULE_DIR); } - else { - const pcre *regex_islookupmod = regex_must_compile( - US"\\." DYNLIB_FN_EXT "$", FALSE, TRUE); - - DEBUG(D_lookup) debug_printf("Loading lookup modules from %s\n", LOOKUP_MODULE_DIR); - while ((ent = readdir(dd)) != NULL) { - char *name = ent->d_name; - int len = (int)strlen(name); - if (pcre_exec(regex_islookupmod, NULL, name, len, 0, PCRE_EOPT, NULL, 0) >= 0) { - int pathnamelen = len + (int)strlen(LOOKUP_MODULE_DIR) + 2; - void *dl; - struct lookup_module_info *info; - const char *errormsg; - - /* SRH: am I being paranoid here or what? */ - if (pathnamelen > big_buffer_size) { - fprintf(stderr, "Loading lookup modules: %s/%s: name too long\n", LOOKUP_MODULE_DIR, name); - log_write(0, LOG_MAIN|LOG_PANIC, "%s/%s: name too long\n", LOOKUP_MODULE_DIR, name); - continue; - } - - /* SRH: snprintf here? */ - sprintf(CS big_buffer, "%s/%s", LOOKUP_MODULE_DIR, name); - - dl = dlopen(CS big_buffer, RTLD_NOW);// TJ was LAZY - if (dl == NULL) { - fprintf(stderr, "Error loading %s: %s\n", name, dlerror()); - moduleerrors++; - log_write(0, LOG_MAIN|LOG_PANIC, "Error loading lookup module %s: %s\n", name, dlerror()); - continue; - } - - /* FreeBSD nsdispatch() can trigger dlerror() errors about - * _nss_cache_cycle_prevention_function; we need to clear the dlerror() - * state before calling dlsym(), so that any error afterwards only - * comes from dlsym(). - */ - errormsg = dlerror(); - - info = (struct lookup_module_info*) dlsym(dl, "_lookup_module_info"); - if ((errormsg = dlerror()) != NULL) { - fprintf(stderr, "%s does not appear to be a lookup module (%s)\n", name, errormsg); - dlclose(dl); - moduleerrors++; - log_write(0, LOG_MAIN|LOG_PANIC, "%s does not appear to be a lookup module (%s)\n", name, errormsg); - continue; - } - if (info->magic != LOOKUP_MODULE_INFO_MAGIC) { - fprintf(stderr, "Lookup module %s is not compatible with this version of Exim\n", name); - dlclose(dl); - moduleerrors++; - log_write(0, LOG_MAIN|LOG_PANIC, "Lookup module %s is not compatible with this version of Exim\n", name); - continue; - } - - addlookupmodule(dl, info); - DEBUG(D_lookup) debug_printf("Loaded \"%s\" (%d lookup types)\n", name, info->lookupcount); - countmodules++; +else + { + const pcre *regex_islookupmod = regex_must_compile( + US"\\." DYNLIB_FN_EXT "$", FALSE, TRUE); + + DEBUG(D_lookup) debug_printf("Loading lookup modules from %s\n", LOOKUP_MODULE_DIR); + while ((ent = readdir(dd))) + { + char *name = ent->d_name; + int len = (int)strlen(name); + if (pcre_exec(regex_islookupmod, NULL, name, len, 0, PCRE_EOPT, NULL, 0) >= 0) + { + int pathnamelen = len + (int)strlen(LOOKUP_MODULE_DIR) + 2; + void *dl; + struct lookup_module_info *info; + const char *errormsg; + + /* SRH: am I being paranoid here or what? */ + if (pathnamelen > big_buffer_size) + { + fprintf(stderr, "Loading lookup modules: %s/%s: name too long\n", LOOKUP_MODULE_DIR, name); + log_write(0, LOG_MAIN|LOG_PANIC, "%s/%s: name too long\n", LOOKUP_MODULE_DIR, name); + continue; + } + + /* SRH: snprintf here? */ + sprintf(CS big_buffer, "%s/%s", LOOKUP_MODULE_DIR, name); + + if (!(dl = dlopen(CS big_buffer, RTLD_NOW))) + { + fprintf(stderr, "Error loading %s: %s\n", name, dlerror()); + moduleerrors++; + log_write(0, LOG_MAIN|LOG_PANIC, "Error loading lookup module %s: %s\n", name, dlerror()); + continue; + } + + /* FreeBSD nsdispatch() can trigger dlerror() errors about + * _nss_cache_cycle_prevention_function; we need to clear the dlerror() + * state before calling dlsym(), so that any error afterwards only + * comes from dlsym(). + */ + errormsg = dlerror(); + + info = (struct lookup_module_info*) dlsym(dl, "_lookup_module_info"); + if ((errormsg = dlerror())) + { + fprintf(stderr, "%s does not appear to be a lookup module (%s)\n", name, errormsg); + dlclose(dl); + moduleerrors++; + log_write(0, LOG_MAIN|LOG_PANIC, "%s does not appear to be a lookup module (%s)\n", name, errormsg); + continue; + } + if (info->magic != LOOKUP_MODULE_INFO_MAGIC) + { + fprintf(stderr, "Lookup module %s is not compatible with this version of Exim\n", name); + dlclose(dl); + moduleerrors++; + log_write(0, LOG_MAIN|LOG_PANIC, "Lookup module %s is not compatible with this version of Exim\n", name); + continue; + } + + addlookupmodule(dl, info); + DEBUG(D_lookup) debug_printf("Loaded \"%s\" (%d lookup types)\n", name, info->lookupcount); + countmodules++; } } - store_free((void*)regex_islookupmod); - closedir(dd); + store_free((void*)regex_islookupmod); + closedir(dd); } - DEBUG(D_lookup) debug_printf("Loaded %d lookup modules\n", countmodules); +DEBUG(D_lookup) debug_printf("Loaded %d lookup modules\n", countmodules); #endif - DEBUG(D_lookup) debug_printf("Total %d lookups\n", lookup_list_count); +DEBUG(D_lookup) debug_printf("Total %d lookups\n", lookup_list_count); - lookup_list = store_malloc(sizeof(lookup_info *) * lookup_list_count); - memset(lookup_list, 0, sizeof(lookup_info *) * lookup_list_count); +lookup_list = store_malloc(sizeof(lookup_info *) * lookup_list_count); +memset(lookup_list, 0, sizeof(lookup_info *) * lookup_list_count); - /* now add all lookups to the real list */ - for (struct lookupmodulestr * p = lookupmodules; p; p = p->next) - for (int j = 0; j < p->info->lookupcount; j++) - add_lookup_to_list(p->info->lookups[j]); - store_reset(reset_point); - /* just to be sure */ - lookupmodules = NULL; +/* now add all lookups to the real list */ +for (struct lookupmodulestr * p = lookupmodules; p; p = p->next) + for (int j = 0; j < p->info->lookupcount; j++) + add_lookup_to_list(p->info->lookups[j]); +store_reset(reset_point); +/* just to be sure */ +lookupmodules = NULL; } #endif /*!MACRO_PREDEF*/