165 lines
3.6 KiB
C
165 lines
3.6 KiB
C
/*
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* util.c -
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*
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* Written by Eryk Vershen
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*/
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/*
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* Copyright 1997,1998 by Apple Computer, Inc.
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* All Rights Reserved
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*
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* Permission to use, copy, modify, and distribute this software and
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* its documentation for any purpose and without fee is hereby granted,
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* provided that the above copyright notice appears in all copies and
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* that both the copyright notice and this permission notice appear in
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* supporting documentation.
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*
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* APPLE COMPUTER DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE
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* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE.
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*
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* IN NO EVENT SHALL APPLE COMPUTER BE LIABLE FOR ANY SPECIAL, INDIRECT, OR
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* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
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* LOSS OF USE, DATA OR PROFITS, WHETHER IN ACTION OF CONTRACT,
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* NEGLIGENCE, OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
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* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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// for sprintf()
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#include <stdio.h>
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// for tolower()
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#include <ctype.h>
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#include "version.h"
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#include "util.h"
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/*
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* Defines
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*/
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#define NumToolboxTraps() ( \
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(NGetTrapAddress(_InitGraf, ToolTrap) \
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== NGetTrapAddress(0xAA6E, ToolTrap)) \
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? 0x200 : 0x400 \
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)
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#define GetTrapType(theTrap) ( \
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(((theTrap) & 0x800) != 0) ? ToolTrap : OSTrap \
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)
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/*
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* Types
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*/
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/*
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* Global Constants
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*/
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/*
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* Global Variables
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*/
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static char dynamic_version[10];
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/*
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* Forward declarations
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*/
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/*
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* Routines
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*/
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void
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clear_memory(void *dataPtr, unsigned long size)
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{
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char *ptr;
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ptr = (char *) dataPtr;
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while (size > 0) {
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*ptr++ = 0;
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--size;
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}
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}
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#if !defined(__linux__) && !defined(__unix__)
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/* (see Inside Mac VI 3-8) */
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int
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TrapAvailable(short theTrap)
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{
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TrapType trapType;
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trapType = GetTrapType(theTrap);
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if (trapType == ToolTrap) {
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theTrap &= 0x07FF;
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if (theTrap >= NumToolboxTraps())
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theTrap = _Unimplemented;
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}
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return (
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NGetTrapAddress(theTrap, trapType)
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!= NGetTrapAddress(_Unimplemented, ToolTrap)
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);
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}
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#endif
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/* Ascii case-insensitive string comparison */
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int
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istrncmp(const char *x, const char *y, long len)
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{
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const unsigned char *p = (const unsigned char *)x;
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const unsigned char *q = (const unsigned char *)y;
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while (len > 0) {
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if (tolower(*p) != tolower(*q)) {
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return (*p - *q);
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} else if (*p == 0) {
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break;
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}
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p++;
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q++;
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len--;
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}
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return (0);
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}
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const char *
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get_version_string(void)
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{
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int stage;
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/* "copy" of stuff from SysTypes.r, since we can't include that*/
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enum {development = 0x20, alpha = 0x40, beta = 0x60, final = 0x80, /* or */ release = 0x80};
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switch (kVersionStage) {
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case development: stage = 'd'; break;
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case alpha: stage = 'a'; break;
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case beta: stage = 'b'; break;
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case final: stage = 'f'; break;
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default: stage = '?'; break;
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}
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if (kVersionBugFix != 0) {
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if (kVersionStage == final) {
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snprintf(dynamic_version, sizeof(dynamic_version), "%d.%d.%d",
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kVersionMajor, kVersionMinor, kVersionBugFix);
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} else {
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snprintf(dynamic_version, sizeof(dynamic_version), "%d.%d.%d%c%d",
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kVersionMajor, kVersionMinor, kVersionBugFix, stage, kVersionDelta);
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}
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} else {
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if (kVersionStage == final) {
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snprintf(dynamic_version, sizeof(dynamic_version), "%d.%d",
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kVersionMajor, kVersionMinor);
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} else {
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snprintf(dynamic_version, sizeof(dynamic_version), "%d.%d%c%d",
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kVersionMajor, kVersionMinor, stage, kVersionDelta);
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}
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}
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return dynamic_version;
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}
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