NetBSD/dist/pdisk/util.c

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/*
* util.c -
*
* Written by Eryk Vershen
*/
/*
* Copyright 1997,1998 by Apple Computer, Inc.
* All Rights Reserved
*
* 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 appears in all copies and
* that both the copyright notice and this permission notice appear in
* supporting documentation.
*
* APPLE COMPUTER DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE.
*
* IN NO EVENT SHALL APPLE COMPUTER BE LIABLE FOR ANY SPECIAL, INDIRECT, OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
* LOSS OF USE, DATA OR PROFITS, WHETHER IN ACTION OF CONTRACT,
* NEGLIGENCE, OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
// for sprintf()
#include <stdio.h>
// for tolower()
#include <ctype.h>
#include "version.h"
#include "util.h"
/*
* Defines
*/
#define NumToolboxTraps() ( \
(NGetTrapAddress(_InitGraf, ToolTrap) \
== NGetTrapAddress(0xAA6E, ToolTrap)) \
? 0x200 : 0x400 \
)
#define GetTrapType(theTrap) ( \
(((theTrap) & 0x800) != 0) ? ToolTrap : OSTrap \
)
/*
* Types
*/
/*
* Global Constants
*/
/*
* Global Variables
*/
static char dynamic_version[10];
/*
* Forward declarations
*/
/*
* Routines
*/
void
clear_memory(void *dataPtr, unsigned long size)
{
char *ptr;
ptr = (char *) dataPtr;
while (size > 0) {
*ptr++ = 0;
--size;
}
}
#if !defined(__linux__) && !defined(__unix__)
/* (see Inside Mac VI 3-8) */
int
TrapAvailable(short theTrap)
{
TrapType trapType;
trapType = GetTrapType(theTrap);
if (trapType == ToolTrap) {
theTrap &= 0x07FF;
if (theTrap >= NumToolboxTraps())
theTrap = _Unimplemented;
}
return (
NGetTrapAddress(theTrap, trapType)
!= NGetTrapAddress(_Unimplemented, ToolTrap)
);
}
#endif
/* Ascii case-insensitive string comparison */
int
istrncmp(const char *x, const char *y, long len)
{
unsigned char *p = (unsigned char *)x;
unsigned char *q = (unsigned char *)y;
while (len > 0) {
if (tolower(*p) != tolower(*q)) {
return (*p - *q);
} else if (*p == 0) {
break;
}
p++;
q++;
len--;
}
return (0);
}
const char *
get_version_string(void)
{
int stage;
/* "copy" of stuff from SysTypes.r, since we can't include that*/
enum {development = 0x20, alpha = 0x40, beta = 0x60, final = 0x80, /* or */ release = 0x80};
switch (kVersionStage) {
case development: stage = 'd'; break;
case alpha: stage = 'a'; break;
case beta: stage = 'b'; break;
case final: stage = 'f'; break;
default: stage = '?'; break;
}
if (kVersionBugFix != 0) {
if (kVersionStage == final) {
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snprintf(dynamic_version, sizeof(dynamic_version), "%d.%d.%d",
kVersionMajor, kVersionMinor, kVersionBugFix);
} else {
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snprintf(dynamic_version, sizeof(dynamic_version), "%d.%d.%d%c%d",
kVersionMajor, kVersionMinor, kVersionBugFix, stage, kVersionDelta);
}
} else {
if (kVersionStage == final) {
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snprintf(dynamic_version, sizeof(dynamic_version), "%d.%d",
kVersionMajor, kVersionMinor);
} else {
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snprintf(dynamic_version, sizeof(dynamic_version), "%d.%d%c%d",
kVersionMajor, kVersionMinor, stage, kVersionDelta);
}
}
return dynamic_version;
}