mirror of
https://gitlab.isc.org/isc-projects/bind9
synced 2025-09-05 00:55:24 +00:00
87cafc5e70
Mostly, several functions that take pointers as arguments, almost always char * pointers, had those pointers qualified with "const". Those that returned pointers to previously const-qualified arguments had their return values qualified as const. Some structure members were qualified as const to retain that attribute from the variables from which they were assigned. The macro DE_CONST was added to isc/util.h to deal with a handful of very special places where something is qualified as const but really needs to have its const qualifier removed. Also cleaned up a few places where variable names clashed with reserved identifiers. (Which mostly works fine, but strictly speaking is undefined by the standard.) Minor other ISC style cleanups.
128 lines
2.9 KiB
C
128 lines
2.9 KiB
C
/*
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* Copyright (C) 1999, 2000 Internet Software Consortium.
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS
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* ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
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* CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
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* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
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* PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
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* ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
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* SOFTWARE.
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*/
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/*
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* Principal Author: Bob Halley
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*/
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#include <config.h>
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#include <stdlib.h>
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#include <isc/msgcat.h>
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#include <isc/util.h>
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#ifdef HAVE_CATGETS
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#include <nl_types.h> /* Required for nl_catd. */
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#endif
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/*
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* Implementation Notes:
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*
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* We use malloc() and free() instead of isc_mem_get() and isc_mem_put()
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* because we don't want to require a memory context to be specified
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* in order to use a message catalog.
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*/
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struct isc_msgcat {
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unsigned int magic;
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#ifdef HAVE_CATGETS
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nl_catd catalog;
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#endif
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};
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#define MSGCAT_MAGIC 0x4D436174 /* MCat */
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#define VALID_MSGCAT(m) ((m) != NULL && \
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(m)->magic == MSGCAT_MAGIC)
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void
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isc_msgcat_open(const char *name, isc_msgcat_t **msgcatp) {
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isc_msgcat_t *msgcat;
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/*
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* Open a message catalog.
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*/
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REQUIRE(name != NULL);
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REQUIRE(msgcatp != NULL && *msgcatp == NULL);
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msgcat = malloc(sizeof *msgcat);
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if (msgcat == NULL) {
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*msgcatp = NULL;
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return;
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}
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#ifdef HAVE_CATGETS
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/*
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* We don't check if catopen() fails because we don't care.
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* If it does fail, then when we call catgets(), it will use
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* the default string.
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*/
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msgcat->catalog = catopen(name, 0);
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#endif
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msgcat->magic = MSGCAT_MAGIC;
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*msgcatp = msgcat;
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}
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void
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isc_msgcat_close(isc_msgcat_t **msgcatp) {
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isc_msgcat_t *msgcat;
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/*
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* Close a message catalog.
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*/
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REQUIRE(msgcatp != NULL);
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msgcat = *msgcatp;
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REQUIRE(VALID_MSGCAT(msgcat) || msgcat == NULL);
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if (msgcat != NULL) {
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#ifdef HAVE_CATGETS
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if (msgcat->catalog != (nl_catd)(-1))
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catclose(msgcat->catalog);
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#endif
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msgcat->magic = 0;
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free(msgcat);
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}
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*msgcatp = NULL;
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}
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const char *
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isc_msgcat_get(isc_msgcat_t *msgcat, int set, int message,
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const char *default_text)
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{
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/*
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* Get message 'message' from message set 'set' in 'msgcat'. If it
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* is not available, use 'default'.
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*/
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REQUIRE(VALID_MSGCAT(msgcat) || msgcat == NULL);
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REQUIRE(set > 0);
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REQUIRE(message > 0);
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REQUIRE(default_text != NULL);
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#ifdef HAVE_CATGETS
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if (msgcat == NULL)
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return (default_text);
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return (catgets(msgcat->catalog, set, message, default_text));
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#else
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return (default_text);
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#endif
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}
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