| File: | s/cmd/p7env/p7env.c |
| Warning: | line 153, column 13 Although the value stored to 'status' is used in the enclosing expression, the value is never actually read from 'status' |
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| 1 | /* This Source Code Form is subject to the terms of the Mozilla Public |
| 2 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
| 3 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| 4 | |
| 5 | /* |
| 6 | * p7env -- A command to create a pkcs7 enveloped data. |
| 7 | */ |
| 8 | |
| 9 | #include "nspr.h" |
| 10 | #include "secutil.h" |
| 11 | #include "plgetopt.h" |
| 12 | #include "secpkcs7.h" |
| 13 | #include "cert.h" |
| 14 | #include "certdb.h" |
| 15 | #include "nss.h" |
| 16 | |
| 17 | #if defined(XP_UNIX1) |
| 18 | #include <unistd.h> |
| 19 | #endif |
| 20 | |
| 21 | #include <stdio.h> |
| 22 | #include <string.h> |
| 23 | |
| 24 | #if (defined(XP_WIN) && !defined(WIN32)) || (defined(__sun) && !defined(SVR4)) |
| 25 | extern int fread(char *, size_t, size_t, FILE *); |
| 26 | extern int fwrite(char *, size_t, size_t, FILE *); |
| 27 | extern int fprintf(FILE *, char *, ...); |
| 28 | #endif |
| 29 | |
| 30 | static void |
| 31 | Usage(char *progName) |
| 32 | { |
| 33 | fprintf(stderrstderr, |
| 34 | "Usage: %s -r recipient [-d dbdir] [-i input] [-o output]\n", |
| 35 | progName); |
| 36 | fprintf(stderrstderr, "%-20s Nickname of cert to use for encryption\n", |
| 37 | "-r recipient"); |
| 38 | fprintf(stderrstderr, "%-20s Cert database directory (default is ~/.netscape)\n", |
| 39 | "-d dbdir"); |
| 40 | fprintf(stderrstderr, "%-20s Define an input file to use (default is stdin)\n", |
| 41 | "-i input"); |
| 42 | fprintf(stderrstderr, "%-20s Define an output file to use (default is stdout)\n", |
| 43 | "-o output"); |
| 44 | exit(-1); |
| 45 | } |
| 46 | |
| 47 | struct recipient { |
| 48 | struct recipient *next; |
| 49 | char *nickname; |
| 50 | CERTCertificate *cert; |
| 51 | }; |
| 52 | |
| 53 | static void |
| 54 | EncryptOut(void *arg, const char *buf, unsigned long len) |
| 55 | { |
| 56 | FILE *out; |
| 57 | |
| 58 | out = arg; |
| 59 | fwrite(buf, len, 1, out); |
| 60 | } |
| 61 | |
| 62 | static int |
| 63 | EncryptFile(FILE *outFile, FILE *inFile, struct recipient *recipients, |
| 64 | char *progName) |
| 65 | { |
| 66 | SEC_PKCS7ContentInfo *cinfo; |
| 67 | SEC_PKCS7EncoderContext *ecx; |
| 68 | struct recipient *rcpt; |
| 69 | SECStatus rv = SECFailure; |
| 70 | |
| 71 | if (outFile == NULL((void*)0) || inFile == NULL((void*)0) || recipients == NULL((void*)0)) |
| 72 | return -1; |
| 73 | |
| 74 | /* XXX Need a better way to handle that certUsage stuff! */ |
| 75 | /* XXX keysize? */ |
| 76 | cinfo = SEC_PKCS7CreateEnvelopedData(recipients->cert, |
| 77 | certUsageEmailRecipient, |
| 78 | NULL((void*)0), SEC_OID_DES_EDE3_CBC, 0, |
| 79 | NULL((void*)0), NULL((void*)0)); |
| 80 | if (cinfo == NULL((void*)0)) |
| 81 | return -1; |
| 82 | |
| 83 | for (rcpt = recipients->next; rcpt != NULL((void*)0); rcpt = rcpt->next) { |
| 84 | rv = SEC_PKCS7AddRecipient(cinfo, rcpt->cert, certUsageEmailRecipient, |
| 85 | NULL((void*)0)); |
| 86 | if (rv != SECSuccess) { |
| 87 | SECU_PrintError(progName, "error adding recipient \"%s\"", |
| 88 | rcpt->nickname); |
| 89 | return -1; |
| 90 | } |
| 91 | } |
| 92 | |
| 93 | ecx = SEC_PKCS7EncoderStart(cinfo, EncryptOut, outFile, NULL((void*)0)); |
| 94 | if (ecx == NULL((void*)0)) |
| 95 | return -1; |
| 96 | |
| 97 | for (;;) { |
| 98 | char ibuf[1024]; |
| 99 | int nb; |
| 100 | |
| 101 | if (feof(inFile)) |
| 102 | break; |
| 103 | nb = fread(ibuf, 1, sizeof(ibuf), inFile); |
| 104 | if (nb == 0) { |
| 105 | if (ferror(inFile)) { |
| 106 | PORT_SetErrorPORT_SetError_Util(SEC_ERROR_IO); |
| 107 | rv = SECFailure; |
| 108 | } |
| 109 | break; |
| 110 | } |
| 111 | rv = SEC_PKCS7EncoderUpdate(ecx, ibuf, nb); |
| 112 | if (rv != SECSuccess) |
| 113 | break; |
| 114 | } |
| 115 | |
| 116 | if (SEC_PKCS7EncoderFinish(ecx, NULL((void*)0), NULL((void*)0)) != SECSuccess) |
| 117 | rv = SECFailure; |
| 118 | |
| 119 | SEC_PKCS7DestroyContentInfo(cinfo); |
| 120 | |
| 121 | if (rv != SECSuccess) |
| 122 | return -1; |
| 123 | |
| 124 | return 0; |
| 125 | } |
| 126 | |
| 127 | int |
| 128 | main(int argc, char **argv) |
| 129 | { |
| 130 | char *progName; |
| 131 | FILE *inFile, *outFile; |
| 132 | CERTCertDBHandle *certHandle; |
| 133 | struct recipient *recipients, *rcpt; |
| 134 | PLOptState *optstate; |
| 135 | PLOptStatus status; |
| 136 | SECStatus rv = SECFailure; |
| 137 | |
| 138 | progName = strrchr(argv[0], '/'); |
| 139 | progName = progName ? progName + 1 : argv[0]; |
| 140 | |
| 141 | inFile = NULL((void*)0); |
| 142 | outFile = NULL((void*)0); |
| 143 | recipients = NULL((void*)0); |
| 144 | rcpt = NULL((void*)0); |
| 145 | |
| 146 | /* |
| 147 | * Parse command line arguments |
| 148 | * XXX This needs to be enhanced to allow selection of algorithms |
| 149 | * and key sizes (or to look up algorithms and key sizes for each |
| 150 | * recipient in the magic database). |
| 151 | */ |
| 152 | optstate = PL_CreateOptState(argc, argv, "d:i:o:r:"); |
| 153 | while ((status = PL_GetNextOpt(optstate)) == PL_OPT_OK) { |
Although the value stored to 'status' is used in the enclosing expression, the value is never actually read from 'status' | |
| 154 | switch (optstate->option) { |
| 155 | case '?': |
| 156 | Usage(progName); |
| 157 | break; |
| 158 | |
| 159 | case 'd': |
| 160 | SECU_ConfigDirectory(optstate->value); |
| 161 | break; |
| 162 | |
| 163 | case 'i': |
| 164 | inFile = fopen(optstate->value, "r"); |
| 165 | if (!inFile) { |
| 166 | fprintf(stderrstderr, "%s: unable to open \"%s\" for reading\n", |
| 167 | progName, optstate->value); |
| 168 | return -1; |
| 169 | } |
| 170 | break; |
| 171 | |
| 172 | case 'o': |
| 173 | outFile = fopen(optstate->value, "wb"); |
| 174 | if (!outFile) { |
| 175 | fprintf(stderrstderr, "%s: unable to open \"%s\" for writing\n", |
| 176 | progName, optstate->value); |
| 177 | return -1; |
| 178 | } |
| 179 | break; |
| 180 | |
| 181 | case 'r': |
| 182 | if (rcpt == NULL((void*)0)) { |
| 183 | recipients = rcpt = PORT_AllocPORT_Alloc_Util(sizeof(struct recipient)); |
| 184 | } else { |
| 185 | rcpt->next = PORT_AllocPORT_Alloc_Util(sizeof(struct recipient)); |
| 186 | rcpt = rcpt->next; |
| 187 | } |
| 188 | if (rcpt == NULL((void*)0)) { |
| 189 | fprintf(stderrstderr, "%s: unable to allocate recipient struct\n", |
| 190 | progName); |
| 191 | return -1; |
| 192 | } |
| 193 | rcpt->nickname = PORT_StrdupPORT_Strdup_Util(optstate->value); |
| 194 | rcpt->cert = NULL((void*)0); |
| 195 | rcpt->next = NULL((void*)0); |
| 196 | break; |
| 197 | } |
| 198 | } |
| 199 | PL_DestroyOptState(optstate); |
| 200 | |
| 201 | if (!recipients) |
| 202 | Usage(progName); |
| 203 | |
| 204 | if (!inFile) |
| 205 | inFile = stdinstdin; |
| 206 | if (!outFile) |
| 207 | outFile = stdoutstdout; |
| 208 | |
| 209 | /* Call the NSS initialization routines */ |
| 210 | PR_Init(PR_SYSTEM_THREAD, PR_PRIORITY_NORMAL, 1); |
| 211 | rv = NSS_Init(SECU_ConfigDirectory(NULL((void*)0))); |
| 212 | if (rv != SECSuccess) { |
| 213 | SECU_PrintPRandOSError(progName); |
| 214 | return -1; |
| 215 | } |
| 216 | |
| 217 | /* open cert database */ |
| 218 | certHandle = CERT_GetDefaultCertDB(); |
| 219 | if (certHandle == NULL((void*)0)) { |
| 220 | return -1; |
| 221 | } |
| 222 | |
| 223 | /* find certs */ |
| 224 | for (rcpt = recipients; rcpt != NULL((void*)0); rcpt = rcpt->next) { |
| 225 | rcpt->cert = CERT_FindCertByNickname(certHandle, rcpt->nickname); |
| 226 | if (rcpt->cert == NULL((void*)0)) { |
| 227 | SECU_PrintError(progName, |
| 228 | "the cert for name \"%s\" not found in database", |
| 229 | rcpt->nickname); |
| 230 | return -1; |
| 231 | } |
| 232 | } |
| 233 | |
| 234 | if (EncryptFile(outFile, inFile, recipients, progName)) { |
| 235 | SECU_PrintError(progName, "problem encrypting data"); |
| 236 | return -1; |
| 237 | } |
| 238 | |
| 239 | /* free certs */ |
| 240 | for (rcpt = recipients; rcpt != NULL((void*)0);) { |
| 241 | struct recipient *next = rcpt->next; |
| 242 | CERT_DestroyCertificate(rcpt->cert); |
| 243 | PORT_FreePORT_Free_Util(rcpt->nickname); |
| 244 | PORT_FreePORT_Free_Util(rcpt); |
| 245 | rcpt = next; |
| 246 | } |
| 247 | |
| 248 | if (inFile && inFile != stdinstdin) { |
| 249 | fclose(inFile); |
| 250 | } |
| 251 | if (outFile && outFile != stdoutstdout) { |
| 252 | fclose(outFile); |
| 253 | } |
| 254 | |
| 255 | if (NSS_Shutdown() != SECSuccess) { |
| 256 | SECU_PrintError(progName, "NSS shutdown:"); |
| 257 | return -1; |
| 258 | } |
| 259 | |
| 260 | return 0; |
| 261 | } |