diff options
Diffstat (limited to 'lib/isc/result.c')
| -rw-r--r-- | lib/isc/result.c | 212 |
1 files changed, 212 insertions, 0 deletions
diff --git a/lib/isc/result.c b/lib/isc/result.c new file mode 100644 index 0000000..e0c8653 --- /dev/null +++ b/lib/isc/result.c @@ -0,0 +1,212 @@ +/* + * Copyright (C) 2004, 2005 Internet Systems Consortium, Inc. ("ISC") + * Copyright (C) 1998-2001, 2003 Internet Software Consortium. + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH + * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY + * AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT, + * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM + * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE + * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR + * PERFORMANCE OF THIS SOFTWARE. + */ + +/* $Id: result.c,v 1.62.18.6 2005/06/22 22:05:48 marka Exp $ */ + +/*! \file */ + +#include <config.h> + +#include <stddef.h> +#include <stdlib.h> + +#include <isc/lib.h> +#include <isc/msgs.h> +#include <isc/mutex.h> +#include <isc/once.h> +#include <isc/resultclass.h> +#include <isc/util.h> + +typedef struct resulttable { + unsigned int base; + unsigned int last; + const char ** text; + isc_msgcat_t * msgcat; + int set; + ISC_LINK(struct resulttable) link; +} resulttable; + +static const char *text[ISC_R_NRESULTS] = { + "success", /*%< 0 */ + "out of memory", /*%< 1 */ + "timed out", /*%< 2 */ + "no available threads", /*%< 3 */ + "address not available", /*%< 4 */ + "address in use", /*%< 5 */ + "permission denied", /*%< 6 */ + "no pending connections", /*%< 7 */ + "network unreachable", /*%< 8 */ + "host unreachable", /*%< 9 */ + "network down", /*%< 10 */ + "host down", /*%< 11 */ + "connection refused", /*%< 12 */ + "not enough free resources", /*%< 13 */ + "end of file", /*%< 14 */ + "socket already bound", /*%< 15 */ + "reload", /*%< 16 */ + "lock busy", /*%< 17 */ + "already exists", /*%< 18 */ + "ran out of space", /*%< 19 */ + "operation canceled", /*%< 20 */ + "socket is not bound", /*%< 21 */ + "shutting down", /*%< 22 */ + "not found", /*%< 23 */ + "unexpected end of input", /*%< 24 */ + "failure", /*%< 25 */ + "I/O error", /*%< 26 */ + "not implemented", /*%< 27 */ + "unbalanced parentheses", /*%< 28 */ + "no more", /*%< 29 */ + "invalid file", /*%< 30 */ + "bad base64 encoding", /*%< 31 */ + "unexpected token", /*%< 32 */ + "quota reached", /*%< 33 */ + "unexpected error", /*%< 34 */ + "already running", /*%< 35 */ + "ignore", /*%< 36 */ + "address mask not contiguous", /*%< 37 */ + "file not found", /*%< 38 */ + "file already exists", /*%< 39 */ + "socket is not connected", /*%< 40 */ + "out of range", /*%< 41 */ + "out of entropy", /*%< 42 */ + "invalid use of multicast address", /*%< 43 */ + "not a file", /*%< 44 */ + "not a directory", /*%< 45 */ + "queue is full", /*%< 46 */ + "address family mismatch", /*%< 47 */ + "address family not supported", /*%< 48 */ + "bad hex encoding", /*%< 49 */ + "too many open files", /*%< 50 */ + "not blocking", /*%< 51 */ + "unbalanced quotes", /*%< 52 */ + "operation in progress", /*%< 53 */ + "connection reset", /*%< 54 */ + "soft quota reached", /*%< 55 */ + "not a valid number", /*%< 56 */ + "disabled", /*%< 57 */ + "max size", /*%< 58 */ + "invalid address format" /*%< 59 */ +}; + +#define ISC_RESULT_RESULTSET 2 +#define ISC_RESULT_UNAVAILABLESET 3 + +static isc_once_t once = ISC_ONCE_INIT; +static ISC_LIST(resulttable) tables; +static isc_mutex_t lock; + +static isc_result_t +register_table(unsigned int base, unsigned int nresults, const char **text, + isc_msgcat_t *msgcat, int set) +{ + resulttable *table; + + REQUIRE(base % ISC_RESULTCLASS_SIZE == 0); + REQUIRE(nresults <= ISC_RESULTCLASS_SIZE); + REQUIRE(text != NULL); + + /* + * We use malloc() here because we we want to be able to use + * isc_result_totext() even if there is no memory context. + */ + table = malloc(sizeof(*table)); + if (table == NULL) + return (ISC_R_NOMEMORY); + table->base = base; + table->last = base + nresults - 1; + table->text = text; + table->msgcat = msgcat; + table->set = set; + ISC_LINK_INIT(table, link); + + LOCK(&lock); + + ISC_LIST_APPEND(tables, table, link); + + UNLOCK(&lock); + + return (ISC_R_SUCCESS); +} + +static void +initialize_action(void) { + isc_result_t result; + + RUNTIME_CHECK(isc_mutex_init(&lock) == ISC_R_SUCCESS); + ISC_LIST_INIT(tables); + + result = register_table(ISC_RESULTCLASS_ISC, ISC_R_NRESULTS, text, + isc_msgcat, ISC_RESULT_RESULTSET); + if (result != ISC_R_SUCCESS) + UNEXPECTED_ERROR(__FILE__, __LINE__, + "register_table() %s: %u", + isc_msgcat_get(isc_msgcat, ISC_MSGSET_GENERAL, + ISC_MSG_FAILED, "failed"), + result); +} + +static void +initialize(void) { + isc_lib_initmsgcat(); + RUNTIME_CHECK(isc_once_do(&once, initialize_action) == ISC_R_SUCCESS); +} + +const char * +isc_result_totext(isc_result_t result) { + resulttable *table; + const char *text, *default_text; + int index; + + initialize(); + + LOCK(&lock); + + text = NULL; + for (table = ISC_LIST_HEAD(tables); + table != NULL; + table = ISC_LIST_NEXT(table, link)) { + if (result >= table->base && result <= table->last) { + index = (int)(result - table->base); + default_text = table->text[index]; + /* + * Note: we use 'index + 1' as the message number + * instead of index because isc_msgcat_get() requires + * the message number to be > 0. + */ + text = isc_msgcat_get(table->msgcat, table->set, + index + 1, default_text); + break; + } + } + if (text == NULL) + text = isc_msgcat_get(isc_msgcat, ISC_RESULT_UNAVAILABLESET, + 1, "(result code text not available)"); + + UNLOCK(&lock); + + return (text); +} + +isc_result_t +isc_result_register(unsigned int base, unsigned int nresults, + const char **text, isc_msgcat_t *msgcat, int set) +{ + initialize(); + + return (register_table(base, nresults, text, msgcat, set)); +} |
