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-rw-r--r--cmd/p7sign/p7sign.c277
1 files changed, 277 insertions, 0 deletions
diff --git a/cmd/p7sign/p7sign.c b/cmd/p7sign/p7sign.c
new file mode 100644
index 000000000..d66e99622
--- /dev/null
+++ b/cmd/p7sign/p7sign.c
@@ -0,0 +1,277 @@
+/* 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/. */
+
+/*
+ * p7sign -- A command to create a *detached* pkcs7 signature (over a given
+ * input file).
+ *
+ * $Id$
+ */
+
+#include "nspr.h"
+#include "plgetopt.h"
+#include "secutil.h"
+#include "secpkcs7.h"
+#include "cert.h"
+#include "certdb.h"
+#include "sechash.h" /* for HASH_GetHashObject() */
+#include "nss.h"
+#include "pk11func.h"
+
+#if defined(XP_UNIX)
+#include <unistd.h>
+#endif
+
+#include <stdio.h>
+#include <string.h>
+
+#if (defined(XP_WIN) && !defined(WIN32)) || (defined(__sun) && !defined(SVR4))
+extern int fread(char *, size_t, size_t, FILE*);
+extern int fwrite(char *, size_t, size_t, FILE*);
+extern int fprintf(FILE *, char *, ...);
+#endif
+
+static secuPWData pwdata = { PW_NONE, 0 };
+
+static void
+Usage(char *progName)
+{
+ fprintf(stderr,
+ "Usage: %s -k keyname [-d keydir] [-i input] [-o output]\n",
+ progName);
+ fprintf(stderr, "%-20s Nickname of key to use for signature\n",
+ "-k keyname");
+ fprintf(stderr, "%-20s Key database directory (default is ~/.netscape)\n",
+ "-d keydir");
+ 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");
+ fprintf(stderr, "%-20s Encapsulate content in signature message\n",
+ "-e");
+ fprintf(stderr, "%-20s Password to the key databse\n", "-p");
+ fprintf(stderr, "%-20s password file\n", "-f");
+ exit(-1);
+}
+
+static void
+SignOut(void *arg, const char *buf, unsigned long len)
+{
+ FILE *out;
+
+ out = (FILE*) arg;
+ fwrite (buf, len, 1, out);
+}
+
+static int
+CreateDigest(SECItem *data, char *digestdata, unsigned int *len, unsigned int maxlen)
+{
+ const SECHashObject *hashObj;
+ void *hashcx;
+
+ /* XXX probably want to extend interface to allow other hash algorithms */
+ hashObj = HASH_GetHashObject(HASH_AlgSHA1);
+
+ hashcx = (* hashObj->create)();
+ if (hashcx == NULL)
+ return -1;
+
+ (* hashObj->begin)(hashcx);
+ (* hashObj->update)(hashcx, data->data, data->len);
+ (* hashObj->end)(hashcx, (unsigned char *)digestdata, len, maxlen);
+ (* hashObj->destroy)(hashcx, PR_TRUE);
+ return 0;
+}
+
+static int
+SignFile(FILE *outFile, PRFileDesc *inFile, CERTCertificate *cert,
+ PRBool encapsulated)
+{
+ char digestdata[32];
+ unsigned int len;
+ SECItem digest, data2sign;
+ SEC_PKCS7ContentInfo *cinfo;
+ SECStatus rv;
+
+ if (outFile == NULL || inFile == NULL || cert == NULL)
+ return -1;
+
+ /* suck the file in */
+ if (SECU_ReadDERFromFile(&data2sign, inFile, PR_FALSE) != SECSuccess)
+ return -1;
+
+ if (!encapsulated) {
+ /* unfortunately, we must create the digest ourselves */
+ /* SEC_PKCS7CreateSignedData should have a flag to not include */
+ /* the content for non-encapsulated content at encode time, but */
+ /* should always compute the hash itself */
+ if (CreateDigest(&data2sign, digestdata, &len, 32) < 0)
+ return -1;
+ digest.data = (unsigned char *)digestdata;
+ digest.len = len;
+ }
+
+ /* XXX Need a better way to handle that usage stuff! */
+ cinfo = SEC_PKCS7CreateSignedData (cert, certUsageEmailSigner, NULL,
+ SEC_OID_SHA1,
+ encapsulated ? NULL : &digest,
+ NULL, NULL);
+ if (cinfo == NULL)
+ return -1;
+
+ if (encapsulated) {
+ SEC_PKCS7SetContent(cinfo, (char *)data2sign.data, data2sign.len);
+ }
+
+ rv = SEC_PKCS7IncludeCertChain (cinfo, NULL);
+ if (rv != SECSuccess) {
+ SEC_PKCS7DestroyContentInfo (cinfo);
+ return -1;
+ }
+
+ rv = SEC_PKCS7Encode (cinfo, SignOut, outFile, NULL,
+ NULL, &pwdata);
+
+ SEC_PKCS7DestroyContentInfo (cinfo);
+
+ if (rv != SECSuccess)
+ return -1;
+
+ return 0;
+}
+
+int
+main(int argc, char **argv)
+{
+ char *progName;
+ FILE *outFile;
+ PRFileDesc *inFile;
+ char *keyName = NULL;
+ CERTCertDBHandle *certHandle;
+ CERTCertificate *cert;
+ PRBool encapsulated = PR_FALSE;
+ PLOptState *optstate;
+ PLOptStatus status;
+ SECStatus rv;
+
+ progName = strrchr(argv[0], '/');
+ progName = progName ? progName+1 : argv[0];
+
+ inFile = NULL;
+ outFile = NULL;
+ keyName = NULL;
+
+ /*
+ * Parse command line arguments
+ */
+ optstate = PL_CreateOptState(argc, argv, "ed:k:i:o:p:f:");
+ while ((status = PL_GetNextOpt(optstate)) == PL_OPT_OK) {
+ switch (optstate->option) {
+ case '?':
+ Usage(progName);
+ break;
+
+ case 'e':
+ /* create a message with the signed content encapsulated */
+ encapsulated = PR_TRUE;
+ break;
+
+ case 'd':
+ SECU_ConfigDirectory(optstate->value);
+ break;
+
+ case 'i':
+ inFile = PR_Open(optstate->value, PR_RDONLY, 0);
+ if (!inFile) {
+ fprintf(stderr, "%s: unable to open \"%s\" for reading\n",
+ progName, optstate->value);
+ return -1;
+ }
+ break;
+
+ case 'k':
+ keyName = strdup(optstate->value);
+ break;
+
+ case 'o':
+ outFile = fopen(optstate->value, "wb");
+ if (!outFile) {
+ fprintf(stderr, "%s: unable to open \"%s\" for writing\n",
+ progName, optstate->value);
+ return -1;
+ }
+ break;
+ case 'p':
+ pwdata.source = PW_PLAINTEXT;
+ pwdata.data = strdup (optstate->value);
+ break;
+
+ case 'f':
+ pwdata.source = PW_FROMFILE;
+ pwdata.data = PORT_Strdup (optstate->value);
+ break;
+ }
+ }
+
+ if (!keyName) Usage(progName);
+
+ if (!inFile) inFile = PR_STDIN;
+ if (!outFile) outFile = stdout;
+
+ /* Call the initialization routines */
+ PR_Init(PR_SYSTEM_THREAD, PR_PRIORITY_NORMAL, 1);
+ rv = NSS_Init(SECU_ConfigDirectory(NULL));
+ if (rv != SECSuccess) {
+ SECU_PrintPRandOSError(progName);
+ goto loser;
+ }
+
+ PK11_SetPasswordFunc(SECU_GetModulePassword);
+
+ /* open cert database */
+ certHandle = CERT_GetDefaultCertDB();
+ if (certHandle == NULL) {
+ rv = SECFailure;
+ goto loser;
+ }
+
+ /* find cert */
+ cert = CERT_FindCertByNickname(certHandle, keyName);
+ if (cert == NULL) {
+ SECU_PrintError(progName,
+ "the corresponding cert for key \"%s\" does not exist",
+ keyName);
+ rv = SECFailure;
+ goto loser;
+ }
+
+ if (SignFile(outFile, inFile, cert, encapsulated)) {
+ SECU_PrintError(progName, "problem signing data");
+ rv = SECFailure;
+ goto loser;
+ }
+
+loser:
+ if (pwdata.data) {
+ PORT_Free(pwdata.data);
+ }
+ if (keyName) {
+ PORT_Free(keyName);
+ }
+ if (cert) {
+ CERT_DestroyCertificate(cert);
+ }
+ if (inFile && inFile != PR_STDIN) {
+ PR_Close(inFile);
+ }
+ if (outFile && outFile != stdout) {
+ fclose(outFile);
+ }
+ if (NSS_Shutdown() != SECSuccess) {
+ SECU_PrintError(progName, "NSS shutdown:");
+ exit(1);
+ }
+
+ return (rv != SECSuccess);
+}
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