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rpmio/rpmpgp.c

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00001 /*@-boundsread@*/
00007 #include "system.h"
00008 #include "rpmio_internal.h"
00009 #include "debug.h"
00010 
00011 /*@access pgpDig @*/
00012 /*@access pgpDigParams @*/
00013 
00014 /*@unchecked@*/
00015 static int _debug = 0;
00016 
00017 /*@unchecked@*/
00018 static int _print = 0;
00019 
00020 /*@unchecked@*/ /*@null@*/
00021 static pgpDig _dig = NULL;
00022 
00023 /*@unchecked@*/ /*@null@*/
00024 static pgpDigParams _digp = NULL;
00025 
00026 #ifdef  DYING
00027 /* This is the unarmored RPM-GPG-KEY public key. */
00028 const char * redhatPubKeyDSA = "\
00029 mQGiBDfqVDgRBADBKr3Bl6PO8BQ0H8sJoD6p9U7Yyl7pjtZqioviPwXP+DCWd4u8\n\
00030 HQzcxAZ57m8ssA1LK1Fx93coJhDzM130+p5BG9mYSWShLabR3N1KXdXQYYcowTOM\n\
00031 GxdwYRGr1Spw8QydLhjVfU1VSl4xt6bupPbWJbyjkg5Z3P7BlUOUJmrx3wCgobNV\n\
00032 EDGaWYJcch5z5B1of/41G8kEAKii6q7Gu/vhXXnLS6m15oNnPVybyngiw/23dKjS\n\
00033 ZVG7rKANEK2mxg1VB+vc/uUc4k49UxJJfCZg1gu1sPFV3GSa+Y/7jsiLktQvCiLP\n\
00034 lncQt1dV+ENmHR5BdIDPWDzKBVbgWnSDnqQ6KrZ7T6AlZ74VMpjGxxkWU6vV2xsW\n\
00035 XCLPA/9P/vtImA8CZN3jxGgtK5GGtDNJ/cMhhuv5tnfwFg4b/VGo2Jr8mhLUqoIb\n\
00036 E6zeGAmZbUpdckDco8D5fiFmqTf5+++pCEpJLJkkzel/32N2w4qzPrcRMCiBURES\n\
00037 PjCLd4Y5rPoU8E4kOHc/4BuHN903tiCsCPloCrWsQZ7UdxfQ5LQiUmVkIEhhdCwg\n\
00038 SW5jIDxzZWN1cml0eUByZWRoYXQuY29tPohVBBMRAgAVBQI36lQ4AwsKAwMVAwID\n\
00039 FgIBAheAAAoJECGRgM3bQqYOsBQAnRVtg7B25Hm11PHcpa8FpeddKiq2AJ9aO8sB\n\
00040 XmLDmPOEFI75mpTrKYHF6rkCDQQ36lRyEAgAokgI2xJ+3bZsk8jRA8ORIX8DH05U\n\
00041 lMH27qFYzLbT6npXwXYIOtVn0K2/iMDj+oEB1Aa2au4OnddYaLWp06v3d+XyS0t+\n\
00042 5ab2ZfIQzdh7wCwxqRkzR+/H5TLYbMG+hvtTdylfqIX0WEfoOXMtWEGSVwyUsnM3\n\
00043 Jy3LOi48rQQSCKtCAUdV20FoIGWhwnb/gHU1BnmES6UdQujFBE6EANqPhp0coYoI\n\
00044 hHJ2oIO8ujQItvvNaU88j/s/izQv5e7MXOgVSjKe/WX3s2JtB/tW7utpy12wh1J+\n\
00045 JsFdbLV/t8CozUTpJgx5mVA3RKlxjTA+On+1IEUWioB+iVfT7Ov/0kcAzwADBQf9\n\
00046 E4SKCWRand8K0XloMYgmipxMhJNnWDMLkokvbMNTUoNpSfRoQJ9EheXDxwMpTPwK\n\
00047 ti/PYrrL2J11P2ed0x7zm8v3gLrY0cue1iSba+8glY+p31ZPOr5ogaJw7ZARgoS8\n\
00048 BwjyRymXQp+8Dete0TELKOL2/itDOPGHW07SsVWOR6cmX4VlRRcWB5KejaNvdrE5\n\
00049 4XFtOd04NMgWI63uqZc4zkRa+kwEZtmbz3tHSdRCCE+Y7YVP6IUf/w6YPQFQriWY\n\
00050 FiA6fD10eB+BlIUqIw80VgjsBKmCwvKkn4jg8kibXgj4/TzQSx77uYokw1EqQ2wk\n\
00051 OZoaEtcubsNMquuLCMWijYhGBBgRAgAGBQI36lRyAAoJECGRgM3bQqYOhyYAnj7h\n\
00052 VDY/FJAGqmtZpwVp9IlitW5tAJ4xQApr/jNFZCTksnI+4O1765F7tA==\n\
00053 ";
00054 
00055 /* This is the unarmored RPM-PGP-KEY public key. */
00056 const char * redhatPubKeyRSA = "\
00057 mQCNAzEpXjUAAAEEAKG4/V9oUSiDc9wIge6Bmg6erDGCLzmFyioAho8kDIJSrcmi\n\
00058 F9qTdPq+fj726pgW1iSb0Y7syZn9Y2lgQm5HkPODfNi8eWyTFSxbr8ygosLRClTP\n\
00059 xqHVhtInGrfZNLoSpv1LdWOme0yOpOQJnghdOMzKXpgf5g84vaUg6PHLopv5AAUR\n\
00060 tCpSZWQgSGF0IFNvZnR3YXJlLCBJbmMuIDxyZWRoYXRAcmVkaGF0LmNvbT6JAJUD\n\
00061 BRAyA5tUoyDApfg4JKEBAUzSA/9QdcVsu955vVyZDk8uvOXWV0X3voT9B3aYMFvj\n\
00062 UNHUD6F1VFruwQHVKbGJEq1o5MOA6OXKR3vJZStXEMF47TWXJfQaflgl8ywZTH5W\n\
00063 +eMlKau6Nr0labUV3lmsAE4Vsgu8NCkzIrp2wNVbeW2ZAXtrKswV+refLquUhp7l\n\
00064 wMpH9IkAdQMFEDGttkRNdXhbO1TgGQEBAGoC/j6C22PqXIyqZc6fG6J6Jl/T5kFG\n\
00065 xH1pKIzua5WCDDugAgnuOJgywa4pegT4UqwEZiMTAlwT6dmG1CXgKB+5V7lnCjDc\n\
00066 JZLni0iztoe08ig6fJrjNGXljf7KYXzgwBftQokAlQMFEDMQzo2MRVM9rfPulQEB\n\
00067 pLoD/1/MWv3u0Paiu14XRvDrBaJ7BmG2/48bA5vKOzpvvoNRO95YS7ZEtqErXA7Y\n\
00068 DRO8+C8f6PAILMk7kCk4lNMscS/ZRzu5+J8cv4ejsFvxgJBBU3Zgp8AWdWOpvZ0I\n\
00069 wW//HoDUGhOxlEtymljIMFBkj4SysHWhCBUfA9Xy86kouTJQiQCVAwUQMxDOQ50a\n\
00070 feTWLUSJAQFnYQQAkt9nhMTeioREB1DvJt+vsFyOj//o3ThqK5ySEP3dgj62iaQp\n\
00071 JrBmAe5XZPw25C/TXAf+x27H8h2QbKgq49VtsElFexc6wO+uq85fAPDdyE+2XyNE\n\
00072 njGZkY/TP2F/jTB0sAwJO+xFCHmSYkcBjzxK/2LMD+O7rwp2UCUhhl9QhhqJAJUD\n\
00073 BRAx5na6pSDo8cuim/kBARmjA/4lDVnV2h9KiNabp9oE38wmGgu5m5XgUHW8L6du\n\
00074 iQDnwO5IgXN2vDpKGxbgtwv6iYYmGd8IRQ66uJvOsxSv3OR7J7LkCHuI2b/s0AZn\n\
00075 c79DZaJ2ChUCZlbNQBMeEdrFWif9NopY+d5+2tby1onu9XOFMMvomxL3NhctElYR\n\
00076 HC8Xw4kAlQMFEDHmdTtURTdEKY1MpQEBEtEEAMZbp1ZFrjiHkj2aLFC1S8dGRbSH\n\
00077 GUdnLP9qLPFgmWekp9E0o8ZztALGVdqPfPF3N/JJ+AL4IMrfojd7+eZKw36Mdvtg\n\
00078 dPI+Oz4sxHDbDynZ2qspD9Om5yYuxuz/Xq+9nO2IlsAnEYw3ag3cxat0kvxpOPRe\n\
00079 Yy+vFpgfDNizr3MgiQBVAwUQMXNMXCjtrosVMemRAQEDnwH7BsJrnnh91nI54LAK\n\
00080 Gcq3pr8ld0PAtWJmNRGQvUlpEMXUSnu59j2P1ogPNjL3PqKdVxk5Jqgcr8TPQMf3\n\
00081 V4fqXokAlQMFEDFy+8YiEmsRQ3LyzQEB+TwD/03QDslXLg5F3zj4zf0yI6ikT0be\n\
00082 5OhZv2pnkb80qgdHzFRxBOYmSoueRKdQJASd8F9ue4b3bmf/Y7ikiY0DblvxcXB2\n\
00083 sz1Pu8i2Zn9u8SKuxNIoVvM8/STRVkgPfvL5QjAWMHT9Wvg81XcI2yXJzrt/2f2g\n\
00084 mNpWIvVOOT85rVPIiQCVAwUQMVPRlBlzviMjNHElAQG1nwP/fpVX6nKRWJCSFeB7\n\
00085 leZ4lb+y1uMsMVv0n7agjJVw13SXaA267y7VWCBlnhsCemxEugqEIkI4lu/1mgtw\n\
00086 WPWSE0BOIVjj0AA8zp2T0H3ZCCMbiFAFJ1P2Gq2rKr8QrOb/08oH1lEzyz0j/jKh\n\
00087 qiXAxdlB1wojQB6yLbHvTIe3rZGJAHUDBRAxKetfzauiKSJ6LJEBAed/AvsEiGgj\n\
00088 TQzhsZcUuRNrQpV0cDGH9Mpril7P7K7yFIzju8biB+Cu6nEknSOHlMLl8usObVlk\n\
00089 d8Wf14soHC7SjItiGSKtI8JhauzBJPl6fDDeyHGsJKo9f9adKeBMCipCFOuJAJUD\n\
00090 BRAxKeqWRHFTaIK/x+0BAY6eA/4m5X4gs1UwOUIRnljo9a0cVs6ITL554J9vSCYH\n\
00091 Zzd87kFwdf5W1Vd82HIkRzcr6cp33E3IDkRzaQCMVw2me7HePP7+4Ry2q3EeZMbm\n\
00092 NE++VzkxjikzpRb2+F5nGB2UdsElkgbXinswebiuOwOrocLbz6JFdDsJPcT5gVfi\n\
00093 z15FuA==\n\
00094 ";
00095 #endif  /* DYING */
00096 
00097 struct pgpValTbl_s pgpSigTypeTbl[] = {
00098     { PGPSIGTYPE_BINARY,        "Binary document signature" },
00099     { PGPSIGTYPE_TEXT,          "Text document signature" },
00100     { PGPSIGTYPE_STANDALONE,    "Standalone signature" },
00101     { PGPSIGTYPE_GENERIC_CERT,  "Generic certification of a User ID and Public Key" },
00102     { PGPSIGTYPE_PERSONA_CERT,  "Persona certification of a User ID and Public Key" },
00103     { PGPSIGTYPE_CASUAL_CERT,   "Casual certification of a User ID and Public Key" },
00104     { PGPSIGTYPE_POSITIVE_CERT, "Positive certification of a User ID and Public Key" },
00105     { PGPSIGTYPE_SUBKEY_BINDING,"Subkey Binding Signature" },
00106     { PGPSIGTYPE_SIGNED_KEY,    "Signature directly on a key" },
00107     { PGPSIGTYPE_KEY_REVOKE,    "Key revocation signature" },
00108     { PGPSIGTYPE_SUBKEY_REVOKE, "Subkey revocation signature" },
00109     { PGPSIGTYPE_CERT_REVOKE,   "Certification revocation signature" },
00110     { PGPSIGTYPE_TIMESTAMP,     "Timestamp signature" },
00111     { -1,                       "Unknown signature type" },
00112 };
00113 
00114 struct pgpValTbl_s pgpPubkeyTbl[] = {
00115     { PGPPUBKEYALGO_RSA,        "RSA" },
00116     { PGPPUBKEYALGO_RSA_ENCRYPT,"RSA(Encrypt-Only)" },
00117     { PGPPUBKEYALGO_RSA_SIGN,   "RSA(Sign-Only)" },
00118     { PGPPUBKEYALGO_ELGAMAL_ENCRYPT,"Elgamal(Encrypt-Only)" },
00119     { PGPPUBKEYALGO_DSA,        "DSA" },
00120     { PGPPUBKEYALGO_EC,         "Elliptic Curve" },
00121     { PGPPUBKEYALGO_ECDSA,      "ECDSA" },
00122     { PGPPUBKEYALGO_ELGAMAL,    "Elgamal" },
00123     { PGPPUBKEYALGO_DH,         "Diffie-Hellman (X9.42)" },
00124     { -1,                       "Unknown public key algorithm" },
00125 };
00126 
00127 struct pgpValTbl_s pgpSymkeyTbl[] = {
00128     { PGPSYMKEYALGO_PLAINTEXT,  "Plaintext" },
00129     { PGPSYMKEYALGO_IDEA,       "IDEA" },
00130     { PGPSYMKEYALGO_TRIPLE_DES, "3DES" },
00131     { PGPSYMKEYALGO_CAST5,      "CAST5" },
00132     { PGPSYMKEYALGO_BLOWFISH,   "BLOWFISH" },
00133     { PGPSYMKEYALGO_SAFER,      "SAFER" },
00134     { PGPSYMKEYALGO_DES_SK,     "DES/SK" },
00135     { PGPSYMKEYALGO_AES_128,    "AES(128-bit key)" },
00136     { PGPSYMKEYALGO_AES_192,    "AES(192-bit key)" },
00137     { PGPSYMKEYALGO_AES_256,    "AES(256-bit key)" },
00138     { PGPSYMKEYALGO_TWOFISH,    "TWOFISH" },
00139     { -1,                       "Unknown symmetric key algorithm" },
00140 };
00141 
00142 struct pgpValTbl_s pgpCompressionTbl[] = {
00143     { PGPCOMPRESSALGO_NONE,     "Uncompressed" },
00144     { PGPCOMPRESSALGO_ZIP,      "ZIP" },
00145     { PGPCOMPRESSALGO_ZLIB,     "ZLIB" },
00146     { -1,                       "Unknown compression algorithm" },
00147 };
00148 
00149 struct pgpValTbl_s pgpHashTbl[] = {
00150     { PGPHASHALGO_MD5,          "MD5" },
00151     { PGPHASHALGO_SHA1,         "SHA1" },
00152     { PGPHASHALGO_RIPEMD160,    "RIPEMD160" },
00153     { PGPHASHALGO_MD2,          "MD2" },
00154     { PGPHASHALGO_TIGER192,     "TIGER192" },
00155     { PGPHASHALGO_HAVAL_5_160,  "HAVAL-5-160" },
00156     { -1,                       "Unknown hash algorithm" },
00157 };
00158 
00159 /*@-exportlocal -exportheadervar@*/
00160 /*@observer@*/ /*@unchecked@*/
00161 struct pgpValTbl_s pgpKeyServerPrefsTbl[] = {
00162     { 0x80,                     "No-modify" },
00163     { -1,                       "Unknown key server preference" },
00164 };
00165 /*@=exportlocal =exportheadervar@*/
00166 
00167 struct pgpValTbl_s pgpSubTypeTbl[] = {
00168     { PGPSUBTYPE_SIG_CREATE_TIME,"signature creation time" },
00169     { PGPSUBTYPE_SIG_EXPIRE_TIME,"signature expiration time" },
00170     { PGPSUBTYPE_EXPORTABLE_CERT,"exportable certification" },
00171     { PGPSUBTYPE_TRUST_SIG,     "trust signature" },
00172     { PGPSUBTYPE_REGEX,         "regular expression" },
00173     { PGPSUBTYPE_REVOCABLE,     "revocable" },
00174     { PGPSUBTYPE_KEY_EXPIRE_TIME,"key expiration time" },
00175     { PGPSUBTYPE_BACKWARD_COMPAT,"placeholder for backward compatibility" },
00176     { PGPSUBTYPE_PREFER_SYMKEY, "preferred symmetric algorithms" },
00177     { PGPSUBTYPE_REVOKE_KEY,    "revocation key" },
00178     { PGPSUBTYPE_ISSUER_KEYID,  "issuer key ID" },
00179     { PGPSUBTYPE_NOTATION,      "notation data" },
00180     { PGPSUBTYPE_PREFER_HASH,   "preferred hash algorithms" },
00181     { PGPSUBTYPE_PREFER_COMPRESS,"preferred compression algorithms" },
00182     { PGPSUBTYPE_KEYSERVER_PREFERS,"key server preferences" },
00183     { PGPSUBTYPE_PREFER_KEYSERVER,"preferred key server" },
00184     { PGPSUBTYPE_PRIMARY_USERID,"primary user id" },
00185     { PGPSUBTYPE_POLICY_URL,    "policy URL" },
00186     { PGPSUBTYPE_KEY_FLAGS,     "key flags" },
00187     { PGPSUBTYPE_SIGNER_USERID, "signer's user id" },
00188     { PGPSUBTYPE_REVOKE_REASON, "reason for revocation" },
00189     { PGPSUBTYPE_INTERNAL_100,  "internal subpkt type 100" },
00190     { PGPSUBTYPE_INTERNAL_101,  "internal subpkt type 101" },
00191     { PGPSUBTYPE_INTERNAL_102,  "internal subpkt type 102" },
00192     { PGPSUBTYPE_INTERNAL_103,  "internal subpkt type 103" },
00193     { PGPSUBTYPE_INTERNAL_104,  "internal subpkt type 104" },
00194     { PGPSUBTYPE_INTERNAL_105,  "internal subpkt type 105" },
00195     { PGPSUBTYPE_INTERNAL_106,  "internal subpkt type 106" },
00196     { PGPSUBTYPE_INTERNAL_107,  "internal subpkt type 107" },
00197     { PGPSUBTYPE_INTERNAL_108,  "internal subpkt type 108" },
00198     { PGPSUBTYPE_INTERNAL_109,  "internal subpkt type 109" },
00199     { PGPSUBTYPE_INTERNAL_110,  "internal subpkt type 110" },
00200     { -1,                       "Unknown signature subkey type" },
00201 };
00202 
00203 struct pgpValTbl_s pgpTagTbl[] = {
00204     { PGPTAG_PUBLIC_SESSION_KEY,"Public-Key Encrypted Session Key" },
00205     { PGPTAG_SIGNATURE,         "Signature" },
00206     { PGPTAG_SYMMETRIC_SESSION_KEY,"Symmetric-Key Encrypted Session Key" },
00207     { PGPTAG_ONEPASS_SIGNATURE, "One-Pass Signature" },
00208     { PGPTAG_SECRET_KEY,        "Secret Key" },
00209     { PGPTAG_PUBLIC_KEY,        "Public Key" },
00210     { PGPTAG_SECRET_SUBKEY,     "Secret Subkey" },
00211     { PGPTAG_COMPRESSED_DATA,   "Compressed Data" },
00212     { PGPTAG_SYMMETRIC_DATA,    "Symmetrically Encrypted Data" },
00213     { PGPTAG_MARKER,            "Marker" },
00214     { PGPTAG_LITERAL_DATA,      "Literal Data" },
00215     { PGPTAG_TRUST,             "Trust" },
00216     { PGPTAG_USER_ID,           "User ID" },
00217     { PGPTAG_PUBLIC_SUBKEY,     "Public Subkey" },
00218     { PGPTAG_COMMENT_OLD,       "Comment (from OpenPGP draft)" },
00219     { PGPTAG_PHOTOID,           "PGP's photo ID" },
00220     { PGPTAG_ENCRYPTED_MDC,     "Integrity protected encrypted data" },
00221     { PGPTAG_MDC,               "Manipulaion detection code packet" },
00222     { PGPTAG_PRIVATE_60,        "Private #60" },
00223     { PGPTAG_COMMENT,           "Comment" },
00224     { PGPTAG_PRIVATE_62,        "Private #62" },
00225     { PGPTAG_CONTROL,           "Control (GPG)" },
00226     { -1,                       "Unknown packet tag" },
00227 };
00228 
00229 struct pgpValTbl_s pgpArmorTbl[] = {
00230     { PGPARMOR_MESSAGE,         "MESSAGE" },
00231     { PGPARMOR_PUBKEY,          "PUBLIC KEY BLOCK" },
00232     { PGPARMOR_SIGNATURE,       "SIGNATURE" },
00233     { PGPARMOR_SIGNED_MESSAGE,  "SIGNED MESSAGE" },
00234     { PGPARMOR_FILE,            "ARMORED FILE" },
00235     { PGPARMOR_PRIVKEY,         "PRIVATE KEY BLOCK" },
00236     { PGPARMOR_SECKEY,          "SECRET KEY BLOCK" },
00237     { -1,                       "Unknown armor block" }
00238 };
00239 
00240 struct pgpValTbl_s pgpArmorKeyTbl[] = {
00241     { PGPARMORKEY_VERSION,      "Version: " },
00242     { PGPARMORKEY_COMMENT,      "Comment: " },
00243     { PGPARMORKEY_MESSAGEID,    "MessageID: " },
00244     { PGPARMORKEY_HASH,         "Hash: " },
00245     { PGPARMORKEY_CHARSET,      "Charset: " },
00246     { -1,                       "Unknown armor key" }
00247 };
00248 
00254 /*@unused@*/ static inline /*@null@*/ void *
00255 _free(/*@only@*/ /*@null@*/ /*@out@*/ const void * p)
00256         /*@modifies p @*/
00257 {
00258     if (p != NULL)      free((void *)p);
00259     return NULL;
00260 }
00261 
00262 static void pgpPrtNL(void)
00263         /*@globals fileSystem @*/
00264         /*@modifies fileSystem @*/
00265 {
00266     if (!_print) return;
00267     fprintf(stderr, "\n");
00268 }
00269 
00270 static void pgpPrtInt(const char *pre, int i)
00271         /*@globals fileSystem @*/
00272         /*@modifies fileSystem @*/
00273 {
00274     if (!_print) return;
00275     if (pre && *pre)
00276         fprintf(stderr, "%s", pre);
00277     fprintf(stderr, " %d", i);
00278 }
00279 
00280 static void pgpPrtStr(const char *pre, const char *s)
00281         /*@globals fileSystem @*/
00282         /*@modifies fileSystem @*/
00283 {
00284     if (!_print) return;
00285     if (pre && *pre)
00286         fprintf(stderr, "%s", pre);
00287     fprintf(stderr, " %s", s);
00288 }
00289 
00290 static void pgpPrtHex(const char *pre, const byte *p, unsigned int plen)
00291         /*@globals fileSystem @*/
00292         /*@modifies fileSystem @*/
00293 {
00294     if (!_print) return;
00295     if (pre && *pre)
00296         fprintf(stderr, "%s", pre);
00297     fprintf(stderr, " %s", pgpHexStr(p, plen));
00298 }
00299 
00300 void pgpPrtVal(const char * pre, pgpValTbl vs, byte val)
00301         /*@globals fileSystem @*/
00302         /*@modifies fileSystem @*/
00303 {
00304     if (!_print) return;
00305     if (pre && *pre)
00306         fprintf(stderr, "%s", pre);
00307     fprintf(stderr, "%s(%u)", pgpValStr(vs, val), (unsigned)val);
00308 }
00309 
00312 /*@unused@*/ static /*@observer@*/
00313 const char * pgpMpiHex(const byte *p)
00314         /*@*/
00315 {
00316     static char prbuf[2048];
00317     char *t = prbuf;
00318     t = pgpHexCvt(t, p+2, pgpMpiLen(p)-2);
00319     return prbuf;
00320 }
00321 
00322 /*@-boundswrite@*/
00326 static int pgpHexSet(const char * pre, int lbits,
00327                 /*@out@*/ mp32number * mpn, const byte * p, const byte * pend)
00328         /*@globals fileSystem @*/
00329         /*@modifies *mpn, fileSystem @*/
00330 {
00331     unsigned int mbits = pgpMpiBits(p);
00332     unsigned int nbits;
00333     unsigned int nbytes;
00334     char * t;
00335     unsigned int ix;
00336 
00337     if ((p + ((mbits+7) >> 3)) > pend)
00338         return 1;
00339 
00340     nbits = (lbits > mbits ? lbits : mbits);
00341     nbytes = ((nbits + 7) >> 3);
00342     t = xmalloc(2*nbytes+1);
00343     ix = 2 * ((nbits - mbits) >> 3);
00344 
00345 if (_debug)
00346 fprintf(stderr, "*** mbits %u nbits %u nbytes %u t %p[%d] ix %u\n", mbits, nbits, nbytes, t, (2*nbytes+1), ix);
00347     if (ix > 0) memset(t, (int)'0', ix);
00348     strcpy(t+ix, pgpMpiHex(p));
00349 if (_debug)
00350 fprintf(stderr, "*** %s %s\n", pre, t);
00351     mp32nsethex(mpn, t);
00352     t = _free(t);
00353 if (_debug && _print)
00354 fprintf(stderr, "\t %s ", pre), mp32println(stderr, mpn->size, mpn->data);
00355     return 0;
00356 }
00357 /*@=boundswrite@*/
00358 
00359 int pgpPrtSubType(const byte *h, unsigned int hlen, pgpSigType sigtype)
00360 {
00361     const byte *p = h;
00362     unsigned plen;
00363     int i;
00364 
00365     while (hlen > 0) {
00366         i = pgpLen(p, &plen);
00367         p += i;
00368         hlen -= i;
00369 
00370         pgpPrtVal("    ", pgpSubTypeTbl, p[0]);
00371         switch (*p) {
00372         case PGPSUBTYPE_PREFER_SYMKEY:  /* preferred symmetric algorithms */
00373             for (i = 1; i < plen; i++)
00374                 pgpPrtVal(" ", pgpSymkeyTbl, p[i]);
00375             /*@switchbreak@*/ break;
00376         case PGPSUBTYPE_PREFER_HASH:    /* preferred hash algorithms */
00377             for (i = 1; i < plen; i++)
00378                 pgpPrtVal(" ", pgpHashTbl, p[i]);
00379             /*@switchbreak@*/ break;
00380         case PGPSUBTYPE_PREFER_COMPRESS:/* preferred compression algorithms */
00381             for (i = 1; i < plen; i++)
00382                 pgpPrtVal(" ", pgpCompressionTbl, p[i]);
00383             /*@switchbreak@*/ break;
00384         case PGPSUBTYPE_KEYSERVER_PREFERS:/* key server preferences */
00385             for (i = 1; i < plen; i++)
00386                 pgpPrtVal(" ", pgpKeyServerPrefsTbl, p[i]);
00387             /*@switchbreak@*/ break;
00388         case PGPSUBTYPE_SIG_CREATE_TIME:
00389 /*@-mods -mayaliasunique @*/
00390             if (_digp && !(_digp->saved & PGPDIG_SAVED_TIME) &&
00391                 sigtype == PGPSIGTYPE_POSITIVE_CERT)
00392             {
00393                 _digp->saved |= PGPDIG_SAVED_TIME;
00394                 memcpy(_digp->time, p+1, sizeof(_digp->time));
00395             }
00396 /*@=mods =mayaliasunique @*/
00397             /*@fallthrough@*/
00398         case PGPSUBTYPE_SIG_EXPIRE_TIME:
00399         case PGPSUBTYPE_KEY_EXPIRE_TIME:
00400             if ((plen - 1) == 4) {
00401                 time_t t = pgpGrab(p+1, plen-1);
00402                 if (_print)
00403                    fprintf(stderr, " %-24.24s(0x%08x)", ctime(&t), (unsigned)t);
00404             } else
00405                 pgpPrtHex("", p+1, plen-1);
00406             /*@switchbreak@*/ break;
00407 
00408         case PGPSUBTYPE_ISSUER_KEYID:   /* issuer key ID */
00409 /*@-mods -mayaliasunique @*/
00410             if (_digp && !(_digp->saved & PGPDIG_SAVED_ID) &&
00411                 sigtype == PGPSIGTYPE_POSITIVE_CERT)
00412             {
00413                 _digp->saved |= PGPDIG_SAVED_ID;
00414                 memcpy(_digp->signid, p+1, sizeof(_digp->signid));
00415             }
00416 /*@=mods =mayaliasunique @*/
00417             /*@fallthrough@*/
00418         case PGPSUBTYPE_EXPORTABLE_CERT:
00419         case PGPSUBTYPE_TRUST_SIG:
00420         case PGPSUBTYPE_REGEX:
00421         case PGPSUBTYPE_REVOCABLE:
00422         case PGPSUBTYPE_BACKWARD_COMPAT:
00423         case PGPSUBTYPE_REVOKE_KEY:
00424         case PGPSUBTYPE_NOTATION:
00425         case PGPSUBTYPE_PREFER_KEYSERVER:
00426         case PGPSUBTYPE_PRIMARY_USERID:
00427         case PGPSUBTYPE_POLICY_URL:
00428         case PGPSUBTYPE_KEY_FLAGS:
00429         case PGPSUBTYPE_SIGNER_USERID:
00430         case PGPSUBTYPE_REVOKE_REASON:
00431         case PGPSUBTYPE_INTERNAL_100:
00432         case PGPSUBTYPE_INTERNAL_101:
00433         case PGPSUBTYPE_INTERNAL_102:
00434         case PGPSUBTYPE_INTERNAL_103:
00435         case PGPSUBTYPE_INTERNAL_104:
00436         case PGPSUBTYPE_INTERNAL_105:
00437         case PGPSUBTYPE_INTERNAL_106:
00438         case PGPSUBTYPE_INTERNAL_107:
00439         case PGPSUBTYPE_INTERNAL_108:
00440         case PGPSUBTYPE_INTERNAL_109:
00441         case PGPSUBTYPE_INTERNAL_110:
00442         default:
00443             pgpPrtHex("", p+1, plen-1);
00444             /*@switchbreak@*/ break;
00445         }
00446         pgpPrtNL();
00447         p += plen;
00448         hlen -= plen;
00449     }
00450     return 0;
00451 }
00452 
00453 /*@-varuse =readonlytrans @*/
00454 /*@observer@*/ /*@unchecked@*/
00455 static const char * pgpSigRSA[] = {
00456     " m**d =",
00457     NULL,
00458 };
00459 
00460 /*@observer@*/ /*@unchecked@*/
00461 static const char * pgpSigDSA[] = {
00462     "    r =",
00463     "    s =",
00464     NULL,
00465 };
00466 /*@=varuse =readonlytrans @*/
00467 
00468 static int pgpPrtSigParams(/*@unused@*/ pgpTag tag, byte pubkey_algo, byte sigtype,
00469                 const byte *p, const byte *h, unsigned int hlen)
00470         /*@globals fileSystem @*/
00471         /*@modifies fileSystem @*/
00472 {
00473     const byte * pend = h + hlen;
00474     int i;
00475 
00476     for (i = 0; p < pend; i++, p += pgpMpiLen(p)) {
00477         if (pubkey_algo == PGPPUBKEYALGO_RSA) {
00478             if (i >= 1) break;
00479             /*@-mods@*/
00480             if (_dig &&
00481         (sigtype == PGPSIGTYPE_BINARY || sigtype == PGPSIGTYPE_TEXT))
00482             {
00483                 switch (i) {
00484                 case 0:         /* m**d */
00485                     mp32nsethex(&_dig->c, pgpMpiHex(p));
00486 if (_debug && _print)
00487 fprintf(stderr, "\t  m**d = "),  mp32println(stderr, _dig->c.size, _dig->c.data);
00488                     /*@switchbreak@*/ break;
00489                 default:
00490                     /*@switchbreak@*/ break;
00491                 }
00492             }
00493             /*@=mods@*/
00494             pgpPrtStr("", pgpSigRSA[i]);
00495         } else if (pubkey_algo == PGPPUBKEYALGO_DSA) {
00496             if (i >= 2) break;
00497             /*@-mods@*/
00498             if (_dig &&
00499         (sigtype == PGPSIGTYPE_BINARY || sigtype == PGPSIGTYPE_TEXT))
00500             {
00501                 int xx;
00502                 xx = 0;
00503                 switch (i) {
00504                 case 0:         /* r */
00505                     xx = pgpHexSet(pgpSigDSA[i], 160, &_dig->r, p, pend);
00506                     /*@switchbreak@*/ break;
00507                 case 1:         /* s */
00508                     xx = pgpHexSet(pgpSigDSA[i], 160, &_dig->s, p, pend);
00509                     /*@switchbreak@*/ break;
00510                 default:
00511                     xx = 1;
00512                     /*@switchbreak@*/ break;
00513                 }
00514                 if (xx) return xx;
00515             }
00516             /*@=mods@*/
00517             pgpPrtStr("", pgpSigDSA[i]);
00518         } else {
00519             if (_print)
00520                 fprintf(stderr, "%7d", i);
00521         }
00522         pgpPrtStr("", pgpMpiStr(p));
00523         pgpPrtNL();
00524     }
00525 
00526     return 0;
00527 }
00528 
00529 int pgpPrtSig(pgpTag tag, const byte *h, unsigned int hlen)
00530 {
00531     byte version = h[0];
00532     byte * p;
00533     unsigned plen;
00534     int rc;
00535 
00536     switch (version) {
00537     case 3:
00538     {   pgpPktSigV3 v = (pgpPktSigV3)h;
00539         time_t t;
00540 
00541         if (v->hashlen != 5)
00542             return 1;
00543 
00544         pgpPrtVal("V3 ", pgpTagTbl, tag);
00545         pgpPrtVal(" ", pgpPubkeyTbl, v->pubkey_algo);
00546         pgpPrtVal(" ", pgpHashTbl, v->hash_algo);
00547         pgpPrtVal(" ", pgpSigTypeTbl, v->sigtype);
00548         pgpPrtNL();
00549         t = pgpGrab(v->time, sizeof(v->time));
00550         if (_print)
00551             fprintf(stderr, " %-24.24s(0x%08x)", ctime(&t), (unsigned)t);
00552         pgpPrtNL();
00553         pgpPrtHex(" signer keyid", v->signid, sizeof(v->signid));
00554         plen = pgpGrab(v->signhash16, sizeof(v->signhash16));
00555         pgpPrtHex(" signhash16", v->signhash16, sizeof(v->signhash16));
00556         pgpPrtNL();
00557 
00558 /*@-mods@*/
00559         if (_digp && _digp->pubkey_algo == 0) {
00560             _digp->version = v->version;
00561             _digp->hashlen = v->hashlen;
00562             _digp->sigtype = v->sigtype;
00563             _digp->hash = memcpy(xmalloc(v->hashlen), &v->sigtype, v->hashlen);
00564             memcpy(_digp->time, v->time, sizeof(_digp->time));
00565             memcpy(_digp->signid, v->signid, sizeof(_digp->signid));
00566             _digp->pubkey_algo = v->pubkey_algo;
00567             _digp->hash_algo = v->hash_algo;
00568             memcpy(_digp->signhash16, v->signhash16, sizeof(_digp->signhash16));
00569         }
00570 /*@=mods@*/
00571 
00572         p = ((byte *)v) + sizeof(*v);
00573         rc = pgpPrtSigParams(tag, v->pubkey_algo, v->sigtype, p, h, hlen);
00574     }   break;
00575     case 4:
00576     {   pgpPktSigV4 v = (pgpPktSigV4)h;
00577 
00578         pgpPrtVal("V4 ", pgpTagTbl, tag);
00579         pgpPrtVal(" ", pgpPubkeyTbl, v->pubkey_algo);
00580         pgpPrtVal(" ", pgpHashTbl, v->hash_algo);
00581         pgpPrtVal(" ", pgpSigTypeTbl, v->sigtype);
00582         pgpPrtNL();
00583 
00584         p = &v->hashlen[0];
00585         plen = pgpGrab(v->hashlen, sizeof(v->hashlen));
00586         p += sizeof(v->hashlen);
00587 
00588         if ((p + plen) > (h + hlen))
00589             return 1;
00590 
00591 if (_debug && _print)
00592 fprintf(stderr, "   hash[%u] -- %s\n", plen, pgpHexStr(p, plen));
00593 /*@-mods@*/
00594         if (_digp && _digp->pubkey_algo == 0) {
00595             _digp->hashlen = sizeof(*v) + plen;
00596             _digp->hash = memcpy(xmalloc(_digp->hashlen), v, _digp->hashlen);
00597         }
00598 /*@=mods@*/
00599         (void) pgpPrtSubType(p, plen, v->sigtype);
00600         p += plen;
00601 
00602         plen = pgpGrab(p,2);
00603         p += 2;
00604 
00605         if ((p + plen) > (h + hlen))
00606             return 1;
00607 
00608 if (_debug && _print)
00609 fprintf(stderr, " unhash[%u] -- %s\n", plen, pgpHexStr(p, plen));
00610         (void) pgpPrtSubType(p, plen, v->sigtype);
00611         p += plen;
00612 
00613         plen = pgpGrab(p,2);
00614         pgpPrtHex(" signhash16", p, 2);
00615         pgpPrtNL();
00616 
00617 /*@-mods@*/
00618         if (_digp && _digp->pubkey_algo == 0) {
00619             _digp->version = v->version;
00620             _digp->sigtype = v->sigtype;
00621             _digp->pubkey_algo = v->pubkey_algo;
00622             _digp->hash_algo = v->hash_algo;
00623             memcpy(_digp->signhash16, p, sizeof(_digp->signhash16));
00624         }
00625 /*@=mods@*/
00626 
00627         p += 2;
00628 
00629         rc = pgpPrtSigParams(tag, v->pubkey_algo, v->sigtype, p, h, hlen);
00630     }   break;
00631     default:
00632         rc = 1;
00633         break;
00634     }
00635     return rc;
00636 }
00637 
00638 /*@-varuse =readonlytrans @*/
00639 /*@observer@*/ /*@unchecked@*/
00640 static const char * pgpPublicRSA[] = {
00641     "    n =",
00642     "    e =",
00643     NULL,
00644 };
00645 
00646 /*@observer@*/ /*@unchecked@*/
00647 static const char * pgpSecretRSA[] = {
00648     "    d =",
00649     "    p =",
00650     "    q =",
00651     "    u =",
00652     NULL,
00653 };
00654 
00655 /*@observer@*/ /*@unchecked@*/
00656 static const char * pgpPublicDSA[] = {
00657     "    p =",
00658     "    q =",
00659     "    g =",
00660     "    y =",
00661     NULL,
00662 };
00663 
00664 /*@observer@*/ /*@unchecked@*/
00665 static const char * pgpSecretDSA[] = {
00666     "    x =",
00667     NULL,
00668 };
00669 
00670 /*@observer@*/ /*@unchecked@*/
00671 static const char * pgpPublicELGAMAL[] = {
00672     "    p =",
00673     "    g =",
00674     "    y =",
00675     NULL,
00676 };
00677 
00678 /*@observer@*/ /*@unchecked@*/
00679 static const char * pgpSecretELGAMAL[] = {
00680     "    x =",
00681     NULL,
00682 };
00683 /*@=varuse =readonlytrans @*/
00684 
00685 static const byte * pgpPrtPubkeyParams(byte pubkey_algo,
00686                 /*@returned@*/ const byte *p, const byte *h, unsigned int hlen)
00687         /*@globals fileSystem @*/
00688         /*@modifies fileSystem @*/
00689 {
00690     int i;
00691 
00692     for (i = 0; p < &h[hlen]; i++, p += pgpMpiLen(p)) {
00693         if (pubkey_algo == PGPPUBKEYALGO_RSA) {
00694             if (i >= 2) break;
00695             /*@-mods@*/
00696             if (_dig) {
00697                 switch (i) {
00698                 case 0:         /* n */
00699                     mp32bsethex(&_dig->rsa_pk.n, pgpMpiHex(p));
00700                     /* Get the keyid */
00701                     if (_digp) {
00702                         uint32* np = _dig->rsa_pk.n.modl;
00703                         uint32  nsize = _dig->rsa_pk.n.size;
00704                         uint32 keyid[2];
00705                         #if WORDS_BIGENDIAN
00706                         keyid[0] = np[nsize-2];
00707                         keyid[1] = np[nsize-1];
00708                         #else
00709                         keyid[0] = swapu32(np[nsize-2]);
00710                         keyid[1] = swapu32(np[nsize-1]);
00711                         #endif
00712                         memcpy(_digp->signid, keyid, sizeof(_digp->signid));
00713                     }
00714 if (_debug && _print)
00715 fprintf(stderr, "\t     n = "),  mp32println(stderr, _dig->rsa_pk.n.size, _dig->rsa_pk.n.modl);
00716                     /*@switchbreak@*/ break;
00717                 case 1:         /* e */
00718                     mp32nsethex(&_dig->rsa_pk.e, pgpMpiHex(p));
00719 if (_debug && _print)
00720 fprintf(stderr, "\t     e = "),  mp32println(stderr, _dig->rsa_pk.e.size, _dig->rsa_pk.e.data);
00721                     /*@switchbreak@*/ break;
00722                 default:
00723                     /*@switchbreak@*/ break;
00724                 }
00725             }
00726             /*@=mods@*/
00727             pgpPrtStr("", pgpPublicRSA[i]);
00728         } else if (pubkey_algo == PGPPUBKEYALGO_DSA) {
00729             if (i >= 4) break;
00730             /*@-mods@*/
00731             if (_dig) {
00732                 switch (i) {
00733                 case 0:         /* p */
00734                     mp32bsethex(&_dig->p, pgpMpiHex(p));
00735 if (_debug && _print)
00736 fprintf(stderr, "\t     p = "),  mp32println(stderr, _dig->p.size, _dig->p.modl);
00737                     /*@switchbreak@*/ break;
00738                 case 1:         /* q */
00739                     mp32bsethex(&_dig->q, pgpMpiHex(p));
00740 if (_debug && _print)
00741 fprintf(stderr, "\t     q = "),  mp32println(stderr, _dig->q.size, _dig->q.modl);
00742                     /*@switchbreak@*/ break;
00743                 case 2:         /* g */
00744                     mp32nsethex(&_dig->g, pgpMpiHex(p));
00745 if (_debug && _print)
00746 fprintf(stderr, "\t     g = "),  mp32println(stderr, _dig->g.size, _dig->g.data);
00747                     /*@switchbreak@*/ break;
00748                 case 3:         /* y */
00749                     mp32nsethex(&_dig->y, pgpMpiHex(p));
00750 if (_debug && _print)
00751 fprintf(stderr, "\t     y = "),  mp32println(stderr, _dig->y.size, _dig->y.data);
00752                     /*@switchbreak@*/ break;
00753                 default:
00754                     /*@switchbreak@*/ break;
00755                 }
00756             }
00757             /*@=mods@*/
00758             pgpPrtStr("", pgpPublicDSA[i]);
00759         } else if (pubkey_algo == PGPPUBKEYALGO_ELGAMAL_ENCRYPT) {
00760             if (i >= 3) break;
00761             pgpPrtStr("", pgpPublicELGAMAL[i]);
00762         } else {
00763             if (_print)
00764                 fprintf(stderr, "%7d", i);
00765         }
00766     /*@=mods@*/
00767         pgpPrtStr("", pgpMpiStr(p));
00768         pgpPrtNL();
00769     }
00770 
00771     return p;
00772 }
00773 
00774 static const byte * pgpPrtSeckeyParams(/*@unused@*/ byte pubkey_algo,
00775                 /*@returned@*/ const byte *p, const byte *h, unsigned int hlen)
00776         /*@globals fileSystem @*/
00777         /*@modifies fileSystem @*/
00778 {
00779     int i;
00780 
00781     switch (*p) {
00782     case 0:
00783         pgpPrtVal(" ", pgpSymkeyTbl, *p);
00784         break;
00785     case 255:
00786         p++;
00787         pgpPrtVal(" ", pgpSymkeyTbl, *p);
00788         switch (p[1]) {
00789         case 0x00:
00790             pgpPrtVal(" simple ", pgpHashTbl, p[2]);
00791             p += 2;
00792             /*@innerbreak@*/ break;
00793         case 0x01:
00794             pgpPrtVal(" salted ", pgpHashTbl, p[2]);
00795             pgpPrtHex("", p+3, 8);
00796             p += 10;
00797             /*@innerbreak@*/ break;
00798         case 0x03:
00799             pgpPrtVal(" iterated/salted ", pgpHashTbl, p[2]);
00800             /*@-shiftnegative -shiftimplementation @*/ /* FIX: unsigned cast */
00801             i = (16 + (p[11] & 0xf)) << ((p[11] >> 4) + 6);
00802             /*@=shiftnegative =shiftimplementation @*/
00803             pgpPrtHex("", p+3, 8);
00804             pgpPrtInt(" iter", i);
00805             p += 11;
00806             /*@innerbreak@*/ break;
00807         }
00808         break;
00809     default:
00810         pgpPrtVal(" ", pgpSymkeyTbl, *p);
00811         pgpPrtHex(" IV", p+1, 8);
00812         p += 8;
00813         break;
00814     }
00815     pgpPrtNL();
00816 
00817     p++;
00818 
00819 #ifdef  NOTYET  /* XXX encrypted MPI's need to be handled. */
00820     for (i = 0; p < &h[hlen]; i++, p += pgpMpiLen(p)) {
00821         if (pubkey_algo == PGPPUBKEYALGO_RSA) {
00822             if (pgpSecretRSA[i] == NULL) break;
00823             pgpPrtStr("", pgpSecretRSA[i]);
00824         } else if (pubkey_algo == PGPPUBKEYALGO_DSA) {
00825             if (pgpSecretDSA[i] == NULL) break;
00826             pgpPrtStr("", pgpSecretDSA[i]);
00827         } else if (pubkey_algo == PGPPUBKEYALGO_ELGAMAL_ENCRYPT) {
00828             if (pgpSecretELGAMAL[i] == NULL) break;
00829             pgpPrtStr("", pgpSecretELGAMAL[i]);
00830         } else {
00831             if (_print)
00832                 fprintf(stderr, "%7d", i);
00833         }
00834         pgpPrtStr("", pgpMpiStr(p));
00835         pgpPrtNL();
00836     }
00837 #else
00838     pgpPrtHex(" secret", p, (hlen - (p - h) - 2));
00839     pgpPrtNL();
00840     p += (hlen - (p - h) - 2);
00841 #endif
00842     pgpPrtHex(" checksum", p, 2);
00843     pgpPrtNL();
00844 
00845     return p;
00846 }
00847 
00848 int pgpPrtKey(pgpTag tag, const byte *h, unsigned int hlen)
00849 {
00850     byte version = *h;
00851     const byte * p;
00852     unsigned plen;
00853     time_t t;
00854     int rc;
00855 
00856     switch (version) {
00857     case 3:
00858     {   pgpPktKeyV3 v = (pgpPktKeyV3)h;
00859         pgpPrtVal("V3 ", pgpTagTbl, tag);
00860         pgpPrtVal(" ", pgpPubkeyTbl, v->pubkey_algo);
00861         t = pgpGrab(v->time, sizeof(v->time));
00862         if (_print)
00863             fprintf(stderr, " %-24.24s(0x%08x)", ctime(&t), (unsigned)t);
00864         plen = pgpGrab(v->valid, sizeof(v->valid));
00865         if (plen != 0)
00866             fprintf(stderr, " valid %u days", plen);
00867         pgpPrtNL();
00868 
00869 /*@-mods@*/
00870         if (_digp && _digp->tag == tag) {
00871             _digp->version = v->version;
00872             memcpy(_digp->time, v->time, sizeof(_digp->time));
00873             _digp->pubkey_algo = v->pubkey_algo;
00874         }
00875 /*@=mods@*/
00876 
00877         p = ((byte *)v) + sizeof(*v);
00878         p = pgpPrtPubkeyParams(v->pubkey_algo, p, h, hlen);
00879         rc = 0;
00880     }   break;
00881     case 4:
00882     {   pgpPktKeyV4 v = (pgpPktKeyV4)h;
00883         pgpPrtVal("V4 ", pgpTagTbl, tag);
00884         pgpPrtVal(" ", pgpPubkeyTbl, v->pubkey_algo);
00885         t = pgpGrab(v->time, sizeof(v->time));
00886         if (_print)
00887             fprintf(stderr, " %-24.24s(0x%08x)", ctime(&t), (unsigned)t);
00888         pgpPrtNL();
00889 
00890 /*@-mods@*/
00891         if (_digp && _digp->tag == tag) {
00892             _digp->version = v->version;
00893             memcpy(_digp->time, v->time, sizeof(_digp->time));
00894             _digp->pubkey_algo = v->pubkey_algo;
00895         }
00896 /*@=mods@*/
00897 
00898         p = ((byte *)v) + sizeof(*v);
00899         p = pgpPrtPubkeyParams(v->pubkey_algo, p, h, hlen);
00900         if (!(tag == PGPTAG_PUBLIC_KEY || tag == PGPTAG_PUBLIC_SUBKEY))
00901             p = pgpPrtSeckeyParams(v->pubkey_algo, p, h, hlen);
00902         rc = 0;
00903     }   break;
00904     default:
00905         rc = 1;
00906         break;
00907     }
00908     return rc;
00909 }
00910 
00911 /*@-boundswrite@*/
00912 int pgpPrtUserID(pgpTag tag, const byte *h, unsigned int hlen)
00913 {
00914     pgpPrtVal("", pgpTagTbl, tag);
00915     if (_print)
00916         fprintf(stderr, " \"%.*s\"", (int)hlen, (const char *)h);
00917     pgpPrtNL();
00918 /*@-mods@*/
00919     if (_digp) {
00920         char * t;
00921         _digp->userid = t = memcpy(xmalloc(hlen+1), h, hlen);
00922         t[hlen] = '\0';
00923     }
00924 /*@=mods@*/
00925     return 0;
00926 }
00927 /*@=boundswrite@*/
00928 
00929 int pgpPrtComment(pgpTag tag, const byte *h, unsigned int hlen)
00930 {
00931     int i = hlen;
00932 
00933     pgpPrtVal("", pgpTagTbl, tag);
00934     if (_print)
00935         fprintf(stderr, " ");
00936     while (i > 0) {
00937         int j;
00938         if (*h >= ' ' && *h <= 'z') {
00939             if (_print)
00940                 fprintf(stderr, "%s", (const char *)h);
00941             j = strlen(h);
00942             while (h[j] == '\0')
00943                 j++;
00944         } else {
00945             pgpPrtHex("", h, i);
00946             j = i;
00947         }
00948         i -= j;
00949         h += j;
00950     }
00951     pgpPrtNL();
00952     return 0;
00953 }
00954 
00955 int pgpPrtPkt(const byte *pkt, unsigned int pleft)
00956 {
00957     unsigned int val = *pkt;
00958     unsigned int pktlen;
00959     pgpTag tag;
00960     unsigned int plen;
00961     const byte *h;
00962     unsigned int hlen = 0;
00963     int rc = 0;
00964 
00965     /* XXX can't deal with these. */
00966     if (!(val & 0x80))
00967         return -1;
00968 
00969     if (val & 0x40) {
00970         tag = (val & 0x3f);
00971         plen = pgpLen(pkt+1, &hlen);
00972     } else {
00973         tag = (val >> 2) & 0xf;
00974         plen = (1 << (val & 0x3));
00975         hlen = pgpGrab(pkt+1, plen);
00976     }
00977 
00978     pktlen = 1 + plen + hlen;
00979     if (pktlen > pleft)
00980         return -1;
00981 
00982     h = pkt + 1 + plen;
00983     switch (tag) {
00984     case PGPTAG_SIGNATURE:
00985         rc = pgpPrtSig(tag, h, hlen);
00986         break;
00987     case PGPTAG_PUBLIC_KEY:
00988     case PGPTAG_PUBLIC_SUBKEY:
00989         rc = pgpPrtKey(tag, h, hlen);
00990         break;
00991     case PGPTAG_SECRET_KEY:
00992     case PGPTAG_SECRET_SUBKEY:
00993         rc = pgpPrtKey(tag, h, hlen);
00994         break;
00995     case PGPTAG_USER_ID:
00996         rc = pgpPrtUserID(tag, h, hlen);
00997         break;
00998     case PGPTAG_COMMENT:
00999     case PGPTAG_COMMENT_OLD:
01000         rc = pgpPrtComment(tag, h, hlen);
01001         break;
01002 
01003     case PGPTAG_RESERVED:
01004     case PGPTAG_PUBLIC_SESSION_KEY:
01005     case PGPTAG_SYMMETRIC_SESSION_KEY:
01006     case PGPTAG_COMPRESSED_DATA:
01007     case PGPTAG_SYMMETRIC_DATA:
01008     case PGPTAG_MARKER:
01009     case PGPTAG_LITERAL_DATA:
01010     case PGPTAG_TRUST:
01011     case PGPTAG_PHOTOID:
01012     case PGPTAG_ENCRYPTED_MDC:
01013     case PGPTAG_MDC:
01014     case PGPTAG_PRIVATE_60:
01015     case PGPTAG_PRIVATE_62:
01016     case PGPTAG_CONTROL:
01017     default:
01018         pgpPrtVal("", pgpTagTbl, tag);
01019         pgpPrtHex("", h, hlen);
01020         pgpPrtNL();
01021         break;
01022     }
01023 
01024     return (rc ? -1 : pktlen);
01025 }
01026 
01027 pgpDig pgpNewDig(void)
01028 {
01029     pgpDig dig = xcalloc(1, sizeof(*dig));
01030     return dig;
01031 }
01032 
01033 /*@-boundswrite@*/
01034 void pgpCleanDig(pgpDig dig)
01035 {
01036     if (dig != NULL) {
01037         int i;
01038         dig->signature.userid = _free(dig->signature.userid);
01039         dig->pubkey.userid = _free(dig->pubkey.userid);
01040         dig->signature.hash = _free(dig->signature.hash);
01041         dig->pubkey.hash = _free(dig->pubkey.hash);
01042         /*@-unqualifiedtrans@*/ /* FIX: double indirection */
01043         for (i = 0; i < 4; i++) {
01044             dig->signature.params[i] = _free(dig->signature.params[i]);
01045             dig->pubkey.params[i] = _free(dig->pubkey.params[i]);
01046         }
01047         /*@=unqualifiedtrans@*/
01048 
01049         memset(&dig->signature, 0, sizeof(dig->signature));
01050         memset(&dig->pubkey, 0, sizeof(dig->pubkey));
01051 
01052         dig->md5 = _free(dig->md5);
01053         dig->sha1 = _free(dig->sha1);
01054         mp32nfree(&dig->hm);
01055         mp32nfree(&dig->r);
01056         mp32nfree(&dig->s);
01057 
01058         (void) rsapkFree(&dig->rsa_pk);
01059         mp32nfree(&dig->m);
01060         mp32nfree(&dig->c);
01061         mp32nfree(&dig->rsahm);
01062     }
01063     /*@-nullstate@*/
01064     return;
01065     /*@=nullstate@*/
01066 }
01067 /*@=boundswrite@*/
01068 
01069 pgpDig pgpFreeDig(/*@only@*/ /*@null@*/ pgpDig dig)
01070         /*@modifies dig @*/
01071 {
01072     if (dig != NULL) {
01073 
01074         /* DUmp the signature/pubkey data. */
01075         pgpCleanDig(dig);
01076 
01077         /*@-branchstate@*/
01078         if (dig->hdrsha1ctx != NULL)
01079             (void) rpmDigestFinal(dig->hdrsha1ctx, NULL, NULL, 0);
01080         /*@=branchstate@*/
01081         dig->hdrsha1ctx = NULL;
01082 
01083         /*@-branchstate@*/
01084         if (dig->sha1ctx != NULL)
01085             (void) rpmDigestFinal(dig->sha1ctx, NULL, NULL, 0);
01086         /*@=branchstate@*/
01087         dig->sha1ctx = NULL;
01088 
01089         mp32bfree(&dig->p);
01090         mp32bfree(&dig->q);
01091         mp32nfree(&dig->g);
01092         mp32nfree(&dig->y);
01093         mp32nfree(&dig->hm);
01094         mp32nfree(&dig->r);
01095         mp32nfree(&dig->s);
01096 
01097 #ifdef  NOTYET
01098         /*@-branchstate@*/
01099         if (dig->hdrmd5ctx != NULL)
01100             (void) rpmDigestFinal(dig->hdrmd5ctx, NULL, NULL, 0);
01101         /*@=branchstate@*/
01102         dig->hdrmd5ctx = NULL;
01103 #endif
01104 
01105         /*@-branchstate@*/
01106         if (dig->md5ctx != NULL)
01107             (void) rpmDigestFinal(dig->md5ctx, NULL, NULL, 0);
01108         /*@=branchstate@*/
01109         dig->md5ctx = NULL;
01110 
01111         mp32bfree(&dig->rsa_pk.n);
01112         mp32nfree(&dig->rsa_pk.e);
01113         mp32nfree(&dig->m);
01114         mp32nfree(&dig->c);
01115         mp32nfree(&dig->hm);
01116 
01117         dig = _free(dig);
01118     }
01119     return dig;
01120 }
01121 
01122 int pgpPrtPkts(const byte * pkts, unsigned int pktlen, pgpDig dig, int printing)
01123 {
01124     unsigned int val = *pkts;
01125     const byte *p;
01126     unsigned int pleft;
01127     int len;
01128 
01129     /*@-mods@*/
01130     _print = printing;
01131     _dig = dig;
01132     if (dig != NULL && (val & 0x80)) {
01133         pgpTag tag = (val & 0x40) ? (val & 0x3f) : ((val >> 2) & 0xf);
01134         _digp = (tag == PGPTAG_SIGNATURE) ? &_dig->signature : &_dig->pubkey;
01135         _digp->tag = tag;
01136     } else
01137         _digp = NULL;
01138     /*@=mods@*/
01139 
01140     for (p = pkts, pleft = pktlen; p < (pkts + pktlen); p += len, pleft -= len) {
01141         len = pgpPrtPkt(p, pleft);
01142         if (len <= 0)
01143             return len;
01144         if (len > pleft)        /* XXX shouldn't happen */
01145             break;
01146     }
01147     return 0;
01148 }
01149 
01150 /*@-boundswrite@*/
01151 pgpArmor pgpReadPkts(const char * fn, const byte ** pkt, size_t * pktlen)
01152 {
01153     const byte * b = NULL;
01154     ssize_t blen;
01155     const char * enc = NULL;
01156     const char * crcenc = NULL;
01157     byte * dec;
01158     byte * crcdec;
01159     size_t declen;
01160     size_t crclen;
01161     uint32 crcpkt, crc;
01162     const char * armortype = NULL;
01163     char * t, * te;
01164     int pstate = 0;
01165     pgpArmor ec = PGPARMOR_ERROR;       /* XXX assume failure */
01166     int rc;
01167 
01168     rc = rpmioSlurp(fn, &b, &blen);
01169     if (rc || b == NULL || blen <= 0) {
01170         goto exit;
01171     }
01172 
01173     if (pgpIsPkt(b)) {
01174 #ifdef NOTYET   /* XXX ASCII Pubkeys only, please. */
01175         ec = 0; /* XXX fish out pkt type. */
01176 #endif
01177         goto exit;
01178     }
01179 
01180 #define TOKEQ(_s, _tok) (!strncmp((_s), (_tok), sizeof(_tok)-1))
01181 
01182     for (t = (char *)b; t && *t; t = te) {
01183         if ((te = strchr(t, '\n')) == NULL)
01184             te = t + strlen(t);
01185         else
01186             te++;
01187 
01188         switch (pstate) {
01189         case 0:
01190             armortype = NULL;
01191             if (!TOKEQ(t, "-----BEGIN PGP "))
01192                 continue;
01193             t += sizeof("-----BEGIN PGP ")-1;
01194 
01195             rc = pgpValTok(pgpArmorTbl, t, te);
01196             if (rc < 0)
01197                 goto exit;
01198             if (rc != PGPARMOR_PUBKEY)  /* XXX ASCII Pubkeys only, please. */
01199                 continue;
01200             armortype = t;
01201 
01202             t = te - (sizeof("-----\n")-1);
01203             if (!TOKEQ(t, "-----\n"))
01204                 continue;
01205             *t = '\0';
01206             pstate++;
01207             /*@switchbreak@*/ break;
01208         case 1:
01209             enc = NULL;
01210             rc = pgpValTok(pgpArmorKeyTbl, t, te);
01211             if (rc >= 0)
01212                 continue;
01213             if (*t != '\n') {
01214                 pstate = 0;
01215                 continue;
01216             }
01217             enc = te;           /* Start of encoded packets */
01218             pstate++;
01219             /*@switchbreak@*/ break;
01220         case 2:
01221             crcenc = NULL;
01222             if (*t != '=')
01223                 continue;
01224             *t++ = '\0';        /* Terminate encoded packets */
01225             crcenc = t;         /* Start of encoded crc */
01226             pstate++;
01227             /*@switchbreak@*/ break;
01228         case 3:
01229             pstate = 0;
01230             if (!TOKEQ(t, "-----END PGP "))
01231                 goto exit;
01232             *t = '\0';          /* Terminate encoded crc */
01233             t += sizeof("-----END PGP ")-1;
01234 
01235             if (armortype == NULL) /* XXX can't happen */
01236                 continue;
01237             rc = strncmp(t, armortype, strlen(armortype));
01238             if (rc)
01239                 continue;
01240 
01241             t = te - (sizeof("-----\n")-1);
01242             if (!TOKEQ(t, "-----\n"))
01243                 goto exit;
01244 
01245             if (b64decode(crcenc, (void **)&crcdec, &crclen) != 0)
01246                 continue;
01247             crcpkt = pgpGrab(crcdec, crclen);
01248             crcdec = _free(crcdec);
01249             if (b64decode(enc, (void **)&dec, &declen) != 0)
01250                 goto exit;
01251             crc = pgpCRC(dec, declen);
01252             if (crcpkt != crc)
01253                 goto exit;
01254             b = _free(b);
01255             b = dec;
01256             blen = declen;
01257             ec = PGPARMOR_PUBKEY;       /* XXX ASCII Pubkeys only, please. */
01258             goto exit;
01259             /*@notreached@*/ /*@switchbreak@*/ break;
01260         }
01261     }
01262     ec = PGPARMOR_NONE;
01263 
01264 exit:
01265     if (ec > PGPARMOR_NONE && pkt)
01266         *pkt = b;
01267     else if (b != NULL)
01268         b = _free(b);
01269     if (pktlen)
01270         *pktlen = blen;
01271     return ec;
01272 }
01273 /*@=boundswrite@*/
01274 /*@=boundsread@*/

Generated on Wed Sep 4 12:49:57 2002 for rpm by doxygen1.2.14 written by Dimitri van Heesch, © 1997-2002