Delete bundled copy of NSS and replace with README.

nspr/pr/src/misc/prerrortable.c

-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-
-
-
-/*
-
-Copyright 1987, 1988 by the Student Information Processing Board
-        of the Massachusetts Institute of Technology
-
-Permission to use, copy, modify, and distribute this software
-and its documentation for any purpose and without fee is
-hereby granted, provided that the above copyright notice
-appear in all copies and that both that copyright notice and
-this permission notice appear in supporting documentation,
-and that the names of M.I.T. and the M.I.T. S.I.P.B. not be
-used in advertising or publicity pertaining to distribution
-of the software without specific, written prior permission.
-M.I.T. and the M.I.T. S.I.P.B. make no representations about
-the suitability of this software for any purpose.  It is
-provided "as is" without express or implied warranty.
-
-*/
-
-#include <string.h>
-#include <assert.h>
-#include <errno.h>
-#include "prmem.h"
-#include "prerror.h"
-
-#define ERRCODE_RANGE   8       /* # of bits to shift table number */
-#define BITS_PER_CHAR   6       /* # bits to shift per character in name */
-
-#ifdef NEED_SYS_ERRLIST
-extern char const * const sys_errlist[];
-extern const int sys_nerr;
-#endif
-
-/* List of error tables */
-struct PRErrorTableList {
-    struct PRErrorTableList *next;
-    const struct PRErrorTable *table;
-    struct PRErrorCallbackTablePrivate *table_private;
-};
-static struct PRErrorTableList * Table_List = (struct PRErrorTableList *) NULL;
-
-/* Supported languages */
-static const char * default_languages[] = { "i-default", "en", 0 };
-static const char * const * callback_languages = default_languages;
-
-/* Callback info */
-static struct PRErrorCallbackPrivate *callback_private = 0;
-static PRErrorCallbackLookupFn *callback_lookup = 0;
-static PRErrorCallbackNewTableFn *callback_newtable = 0;
-
-
-static const char char_set[] =
-        "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789_";
-
-static const char *
-error_table_name (PRErrorCode num)
-{
-    static char buf[6]; /* only used if internal code problems exist */
-
-    long ch;
-    int i;
-    char *p;
-
-    /* num = aa aaa abb bbb bcc ccc cdd ddd d?? ??? ??? */
-    p = buf;
-    num >>= ERRCODE_RANGE;
-    /* num = ?? ??? ??? aaa aaa bbb bbb ccc ccc ddd ddd */
-    num &= 077777777;
-    /* num = 00 000 000 aaa aaa bbb bbb ccc ccc ddd ddd */
-    for (i = 4; i >= 0; i--) {
-        ch = (num >> BITS_PER_CHAR * i) & ((1 << BITS_PER_CHAR) - 1);
-        if (ch != 0)
-            *p++ = char_set[ch-1];
-    }
-    *p = '\0';
-    return(buf);
-}
-
-PR_IMPLEMENT(const char *)
-PR_ErrorToString(PRErrorCode code, PRLanguageCode language)
-{
-    /* static buffer only used if code is using inconsistent error message
-     * numbers, so just ignore the possible thread contention
-     */
-    static char buffer[25];
-
-    const char *msg;
-    int offset;
-    PRErrorCode table_num;
-    struct PRErrorTableList *et;
-    int started = 0;
-    char *cp;
-
-    for (et = Table_List; et; et = et->next) {
-        if (et->table->base <= code &&
-            et->table->base + et->table->n_msgs > code) {
-            /* This is the right table */
-            if (callback_lookup) {
-                msg = callback_lookup(code, language, et->table,
-                    callback_private, et->table_private);
-                if (msg) return msg;
-            }
-    
-            return(et->table->msgs[code - et->table->base].en_text);
-        }
-    }
-
-    if (code >= 0 && code < 256) {
-        return strerror(code);
-    }
-
-    offset = (int) (code & ((1<<ERRCODE_RANGE)-1));
-    table_num = code - offset;
-    strcpy (buffer, "Unknown code ");
-    if (table_num) {
-        strcat(buffer, error_table_name (table_num));
-        strcat(buffer, " ");
-    }
-    for (cp = buffer; *cp; cp++)
-        ;
-    if (offset >= 100) {
-        *cp++ = (char)('0' + offset / 100);
-        offset %= 100;
-        started++;
-    }
-    if (started || offset >= 10) {
-        *cp++ = (char)('0' + offset / 10);
-        offset %= 10;
-    }
-    *cp++ = (char)('0' + offset);
-    *cp = '\0';
-    return(buffer);
-}
-
-PR_IMPLEMENT(const char *)
-PR_ErrorToName(PRErrorCode code)
-{
-    struct PRErrorTableList *et;
-
-    for (et = Table_List; et; et = et->next) {
-        if (et->table->base <= code &&
-            et->table->base + et->table->n_msgs > code) {
-            /* This is the right table */
-            return(et->table->msgs[code - et->table->base].name);
-        }
-    }
-
-    return 0;
-}
-
-PR_IMPLEMENT(const char * const *)
-PR_ErrorLanguages(void)
-{
-    return callback_languages;
-}
-
-PR_IMPLEMENT(PRErrorCode)
-PR_ErrorInstallTable(const struct PRErrorTable *table)
-{
-    struct PRErrorTableList * new_et;
-
-    new_et = (struct PRErrorTableList *)
-                                        PR_Malloc(sizeof(struct PRErrorTableList));
-    if (!new_et)
-        return errno;   /* oops */
-    new_et->table = table;
-    if (callback_newtable) {
-        new_et->table_private = callback_newtable(table, callback_private);
-    } else {
-        new_et->table_private = 0;
-    }
-    new_et->next = Table_List;
-    Table_List = new_et;
-    return 0;
-}
-
-PR_IMPLEMENT(void)
-PR_ErrorInstallCallback(const char * const * languages,
-                       PRErrorCallbackLookupFn *lookup, 
-                       PRErrorCallbackNewTableFn *newtable,
-                       struct PRErrorCallbackPrivate *cb_private)
-{
-    struct PRErrorTableList *et;
-
-    assert(strcmp(languages[0], "i-default") == 0);
-    assert(strcmp(languages[1], "en") == 0);
-    
-    callback_languages = languages;
-    callback_lookup = lookup;
-    callback_newtable = newtable;
-    callback_private = cb_private;
-
-    if (callback_newtable) {
-        for (et = Table_List; et; et = et->next) {
-            et->table_private = callback_newtable(et->table, callback_private);
-        }
-    }
-}