RetroZilla/security/nss/cmd/digest/digest.c

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2015-10-21 05:03:22 +02:00
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is the Netscape security libraries.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1994-2000
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include "secutil.h"
#include "pk11func.h"
#include "secoid.h"
#if defined(XP_WIN) || (defined(__sun) && !defined(SVR4))
#if !defined(WIN32)
extern int fread(char *, size_t, size_t, FILE*);
extern int fwrite(char *, size_t, size_t, FILE*);
extern int fprintf(FILE *, char *, ...);
#endif
#endif
#include "plgetopt.h"
static SECOidData *
HashTypeToOID(HASH_HashType hashtype)
{
SECOidTag hashtag;
if (hashtype <= HASH_AlgNULL || hashtype >= HASH_AlgTOTAL)
return NULL;
switch (hashtype) {
case HASH_AlgMD2:
hashtag = SEC_OID_MD2;
break;
case HASH_AlgMD5:
hashtag = SEC_OID_MD5;
break;
case HASH_AlgSHA1:
hashtag = SEC_OID_SHA1;
break;
default:
fprintf(stderr, "A new hash type has been added to HASH_HashType.\n");
fprintf(stderr, "This program needs to be updated!\n");
return NULL;
}
return SECOID_FindOIDByTag(hashtag);
}
static SECOidData *
HashNameToOID(const char *hashName)
{
HASH_HashType htype;
SECOidData *hashOID;
for (htype = HASH_AlgNULL + 1; htype < HASH_AlgTOTAL; htype++) {
hashOID = HashTypeToOID(htype);
if (PORT_Strcasecmp(hashName, hashOID->desc) == 0)
break;
}
if (htype == HASH_AlgTOTAL)
return NULL;
return hashOID;
}
static void
Usage(char *progName)
{
HASH_HashType htype;
fprintf(stderr,
"Usage: %s -t type [-i input] [-o output]\n",
progName);
fprintf(stderr, "%-20s Specify the digest method (must be one of\n",
"-t type");
fprintf(stderr, "%-20s ", "");
for (htype = HASH_AlgNULL + 1; htype < HASH_AlgTOTAL; htype++) {
fprintf(stderr, HashTypeToOID(htype)->desc);
if (htype == (HASH_AlgTOTAL - 2))
fprintf(stderr, " or ");
else if (htype != (HASH_AlgTOTAL - 1))
fprintf(stderr, ", ");
}
fprintf(stderr, " (case ignored))\n");
fprintf(stderr, "%-20s Define an input file to use (default is stdin)\n",
"-i input");
fprintf(stderr, "%-20s Define an output file to use (default is stdout)\n",
"-o output");
exit(-1);
}
static int
DigestFile(FILE *outFile, FILE *inFile, SECOidData *hashOID)
{
int nb;
unsigned char ibuf[4096], digest[32];
PK11Context *hashcx;
unsigned int len;
SECStatus rv;
hashcx = PK11_CreateDigestContext(hashOID->offset);
if (hashcx == NULL) {
return -1;
}
PK11_DigestBegin(hashcx);
for (;;) {
if (feof(inFile)) break;
nb = fread(ibuf, 1, sizeof(ibuf), inFile);
if (nb != sizeof(ibuf)) {
if (nb == 0) {
if (ferror(inFile)) {
PORT_SetError(SEC_ERROR_IO);
PK11_DestroyContext(hashcx,PR_TRUE);
return -1;
}
/* eof */
break;
}
}
rv = PK11_DigestOp(hashcx, ibuf, nb);
if (rv != SECSuccess) {
PK11_DestroyContext(hashcx, PR_TRUE);
return -1;
}
}
rv = PK11_DigestFinal(hashcx, digest, &len, 32);
PK11_DestroyContext(hashcx, PR_TRUE);
if (rv != SECSuccess) return -1;
nb = fwrite(digest, 1, len, outFile);
if (nb != len) {
PORT_SetError(SEC_ERROR_IO);
return -1;
}
return 0;
}
#include "nss.h"
int
main(int argc, char **argv)
{
char *progName;
FILE *inFile, *outFile;
char *hashName;
SECOidData *hashOID;
PLOptState *optstate;
PLOptStatus status;
SECStatus rv;
progName = strrchr(argv[0], '/');
progName = progName ? progName+1 : argv[0];
inFile = NULL;
outFile = NULL;
hashName = NULL;
rv = NSS_Init("/tmp");
if (rv != SECSuccess) {
fprintf(stderr, "%s: NSS_Init failed in directory %s\n",
progName, "/tmp");
return -1;
}
/*
* Parse command line arguments
*/
optstate = PL_CreateOptState(argc, argv, "t:i:o:");
while ((status = PL_GetNextOpt(optstate)) == PL_OPT_OK) {
switch (optstate->option) {
case '?':
Usage(progName);
break;
case 'i':
inFile = fopen(optstate->value, "r");
if (!inFile) {
fprintf(stderr, "%s: unable to open \"%s\" for reading\n",
progName, optstate->value);
return -1;
}
break;
case 'o':
outFile = fopen(optstate->value, "w");
if (!outFile) {
fprintf(stderr, "%s: unable to open \"%s\" for writing\n",
progName, optstate->value);
return -1;
}
break;
case 't':
hashName = strdup(optstate->value);
break;
}
}
if (!hashName) Usage(progName);
if (!inFile) inFile = stdin;
if (!outFile) outFile = stdout;
hashOID = HashNameToOID(hashName);
if (hashOID == NULL) {
fprintf(stderr, "%s: invalid digest type\n", progName);
Usage(progName);
}
if (DigestFile(outFile, inFile, hashOID)) {
fprintf(stderr, "%s: problem digesting data (%s)\n",
progName, SECU_Strerror(PORT_GetError()));
return -1;
}
if (NSS_Shutdown() != SECSuccess) {
exit(1);
}
return 0;
}