/*
* Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017,
* 2018
* Jonathan Schleifer <js@heap.zone>
*
* All rights reserved.
*
* This file is part of ObjFW. It may be distributed under the terms of the
* Q Public License 1.0, which can be found in the file LICENSE.QPL included in
* the packaging of this file.
*
* Alternatively, it may be distributed under the terms of the GNU General
* Public License, either version 2 or 3, which can be found in the file
* LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
* file.
*/
#include "config.h"
#import "OFApplication.h"
#import "OFArray.h"
#import "OFFile.h"
#import "OFLocale.h"
#import "OFMD5Hash.h"
#import "OFRIPEMD160Hash.h"
#import "OFSHA1Hash.h"
#import "OFSHA224Hash.h"
#import "OFSHA256Hash.h"
#import "OFSHA384Hash.h"
#import "OFSHA512Hash.h"
#import "OFSandbox.h"
#import "OFSecureData.h"
#import "OFStdIOStream.h"
#import "OFOpenItemFailedException.h"
#import "OFReadFailedException.h"
@interface OFHash: OFObject <OFApplicationDelegate>
@end
OF_APPLICATION_DELEGATE(OFHash)
static void
help(void)
{
[of_stderr writeLine: OF_LOCALIZED(@"usage",
@"Usage: %[prog] [md5|rmd160|sha1|sha224|sha256|sha384|sha512] "
@"file1 [file2 ...]",
@"prog", [OFApplication programName])];
[OFApplication terminateWithStatus: 1];
}
static id <OFCryptoHash>
hashForName(OFString *name)
{
if ([name isEqual: @"md5"])
return [OFMD5Hash cryptoHash];
else if ([name isEqual: @"rmd160"] || [name isEqual: @"ripemd160"])
return [OFRIPEMD160Hash cryptoHash];
else if ([name isEqual: @"sha1"])
return [OFSHA1Hash cryptoHash];
else if ([name isEqual: @"sha224"])
return [OFSHA224Hash cryptoHash];
else if ([name isEqual: @"sha256"])
return [OFSHA256Hash cryptoHash];
else if ([name isEqual: @"sha384"])
return [OFSHA384Hash cryptoHash];
else if ([name isEqual: @"sha512"])
return [OFSHA512Hash cryptoHash];
return nil;
}
@implementation OFHash
- (void)applicationDidFinishLaunching
{
OFArray OF_GENERIC(OFString *) *arguments = [OFApplication arguments];
id <OFCryptoHash> hash;
bool first = true;
int exitStatus = 0;
#ifdef OF_HAVE_SANDBOX
OFSandbox *sandbox;
/*
* SHA-512 is the largest hash supported, so no matter which hash will
* be used in the end, this is enough secure memory.
*/
[OFSecureData preallocateMemoryWithSize:
class_getInstanceSize([OFSHA512Hash class])];
sandbox = [[OFSandbox alloc] init];
@try {
[sandbox setAllowsStdIO: true];
[sandbox setAllowsReadingFiles: true];
[sandbox setAllowsUserDatabaseReading: true];
for (OFString *path in arguments) {
if (first) {
first = false;
continue;
}
[sandbox unveilPath: path
permissions: @"r"];
}
first = true;
[sandbox unveilPath: @LANGUAGE_DIR
permissions: @"r"];
[OFApplication activateSandbox: sandbox];
} @finally {
[sandbox release];
}
#endif
#ifndef OF_AMIGAOS
[OFLocale addLanguageDirectory: @LANGUAGE_DIR];
#else
[OFLocale addLanguageDirectory: @"PROGDIR:/share/ofhash/lang"];
#endif
if ([arguments count] < 2)
help();
if ((hash = hashForName([arguments firstObject])) == nil)
help();
for (OFString *path in arguments) {
void *pool;
OFStream *file;
const uint8_t *digest;
size_t digestSize;
if (first) {
first = false;
continue;
}
pool = objc_autoreleasePoolPush();
if ([path isEqual: @"-"])
file = of_stdin;
else {
@try {
file = [OFFile fileWithPath: path
mode: @"r"];
} @catch (OFOpenItemFailedException *e) {
OFString *error = [OFString
stringWithCString: strerror([e errNo])
encoding: [OFLocale encoding]];
[of_stderr writeLine: OF_LOCALIZED(
@"failed_to_open_file",
@"Failed to open file %[file]: %[error]",
@"file", [e path],
@"error", error)];
exitStatus = 1;
goto outer_loop_end;
}
}
[hash reset];
while (![file isAtEndOfStream]) {
uint8_t buffer[1024];
size_t length;
@try {
length = [file readIntoBuffer: buffer
length: 1024];
} @catch (OFReadFailedException *e) {
OFString *error = [OFString
stringWithCString: strerror([e errNo])
encoding: [OFLocale encoding]];
[of_stderr writeLine: OF_LOCALIZED(
@"failed_to_read_file",
@"Failed to read %[file]: %[error]",
@"file", path,
@"error", error)];
exitStatus = 1;
goto outer_loop_end;
}
[hash updateWithBuffer: buffer
length: length];
}
[file close];
digest = [hash digest];
digestSize = [[hash class] digestSize];
for (size_t i = 0; i < digestSize; i++)
[of_stdout writeFormat: @"%02x", digest[i]];
[of_stdout writeFormat: @" %@\n", path];
outer_loop_end:
objc_autoreleasePoolPop(pool);
}
[OFApplication terminateWithStatus: exitStatus];
}
@end