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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2006 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
/* Copyright (c) 1988 AT&T */
/* All Rights Reserved */
#pragma weak gettxt = _gettxt
#include "synonyms.h"
#include <ctype.h>
#include <string.h>
#include <locale.h>
#include <fcntl.h>
#include <sys/types.h>
#include <sys/file.h>
#include <sys/mman.h>
#include <sys/stat.h>
#include <pfmt.h>
#include <stdlib.h>
#include <unistd.h>
#include <limits.h>
#include "../i18n/_locale.h"
#include "../i18n/_loc_path.h"
#define MAXDB 10 /* maximum number of data bases per program */
#define MESSAGES "/LC_MESSAGES/"
#define DB_NAME_LEN 15
char *handle_return(const char *);
/* support multiple versions of a package */
char *Msgdb = (char *)NULL;
static char *saved_locale = NULL;
static const char *not_found = "Message not found!!\n";
static struct db_info {
char db_name[DB_NAME_LEN]; /* name of the message file */
uintptr_t addr; /* virtual memory address */
size_t length;
} *db_info;
static int db_count; /* number of currently accessible data bases */
char *
gettxt(const char *msg_id, const char *dflt_str)
{
char msgfile[DB_NAME_LEN]; /* name of static shared library */
int msgnum; /* message number */
char pathname[PATH_MAX]; /* full pathname to message file */
int i;
int new_locale = 0;
int fd;
struct stat64 sb;
void *addr;
char *tokp;
size_t name_len;
char *curloc;
if ((msg_id == NULL) || (*msg_id == NULL)) {
return (handle_return(dflt_str));
}
/* first time called, allocate space */
if (!db_info) {
if ((db_info = (struct db_info *) \
malloc(MAXDB * sizeof (struct db_info))) == NULL)
return (handle_return(dflt_str));
}
/* parse msg_id */
if (((tokp = strchr(msg_id, ':')) == NULL) || *(tokp+1) == '\0')
return (handle_return(dflt_str));
if ((name_len = (tokp - msg_id)) >= DB_NAME_LEN)
return (handle_return(dflt_str));
if (name_len) {
(void) strncpy(msgfile, msg_id, name_len);
msgfile[name_len] = '\0';
} else {
if (Msgdb && strlen(Msgdb) < DB_NAME_LEN)
(void) strcpy(msgfile, Msgdb);
else {
char *p;
p = (char *)setcat((const char *)0);
if ((p != NULL) && strlen(p) < DB_NAME_LEN)
(void) strcpy(msgfile, p);
else
return (handle_return(dflt_str));
}
}
while (*++tokp)
if (!isdigit(*tokp))
return (handle_return(dflt_str));
msgnum = atoi(msg_id + name_len + 1);
/* Has locale been changed? */
curloc = setlocale(LC_MESSAGES, NULL);
if (saved_locale != NULL && strcmp(curloc, saved_locale) == 0) {
for (i = 0; i < db_count; i++)
if (strcmp(db_info[i].db_name, msgfile) == 0)
break;
} else { /* new locale - clear everything */
if (saved_locale)
free(saved_locale);
/*
* allocate at least 2 bytes, so that we can copy "C"
* without re-allocating the saved_locale.
*/
if ((saved_locale = malloc(strlen(curloc)+2)) == NULL)
return (handle_return(dflt_str));
(void) strcpy(saved_locale, curloc);
for (i = 0; i < db_count; i++) {
(void) munmap((void *)db_info[i].addr,
db_info[i].length);
(void) strcpy(db_info[i].db_name, "");
new_locale++;
}
db_count = 0;
}
if (new_locale || i == db_count) {
if (db_count == MAXDB)
return (handle_return(dflt_str));
if (snprintf(pathname, sizeof (pathname),
_DFLT_LOC_PATH "%s" MESSAGES "%s",
saved_locale, msgfile) >= sizeof (pathname)) {
return (handle_return(dflt_str));
}
if ((fd = open(pathname, O_RDONLY)) == -1 ||
fstat64(fd, &sb) == -1 ||
(addr = mmap(0, (size_t)sb.st_size,
PROT_READ, MAP_SHARED,
fd, 0)) == MAP_FAILED) {
if (fd != -1)
(void) close(fd);
if (strcmp(saved_locale, "C") == 0)
return (handle_return(dflt_str));
/* Change locale to C */
if (snprintf(pathname, sizeof (pathname),
_DFLT_LOC_PATH "C" MESSAGES "%s",
msgfile) >= sizeof (pathname)) {
return (handle_return(dflt_str));
}
for (i = 0; i < db_count; i++) {
(void) munmap((void *)db_info[i].addr,
db_info[i].length);
(void) strcpy(db_info[i].db_name, "");
}
db_count = 0;
if ((fd = open(pathname, O_RDONLY)) != -1 &&
fstat64(fd, &sb) != -1 &&
(addr = mmap(0, (size_t)sb.st_size,
PROT_READ, MAP_SHARED,
fd, 0)) != MAP_FAILED) {
(void) strcpy(saved_locale, "C");
} else {
if (fd != -1)
(void) close(fd);
return (handle_return(dflt_str));
}
}
if (fd != -1)
(void) close(fd);
/* save file name, memory address, fd and size */
(void) strcpy(db_info[db_count].db_name, msgfile);
db_info[db_count].addr = (uintptr_t)addr;
db_info[db_count].length = (size_t)sb.st_size;
i = db_count;
db_count++;
}
/* check if msgnum out of domain */
if (msgnum <= 0 || msgnum > *(int *)(db_info[i].addr))
return (handle_return(dflt_str));
/* return pointer to message */
return ((char *)(db_info[i].addr + *(int *)(db_info[i].addr
+ msgnum * sizeof (int))));
}
char *
handle_return(const char *dflt_str)
{
return ((char *)(dflt_str && *dflt_str ? dflt_str : not_found));
}
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