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/* 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/. */
#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, "%s", 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;
}
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