00001
00005 #include "system.h"
00006
00007 #include <rpmio_internal.h>
00008 #include <rpmmacro.h>
00009 #include <argv.h>
00010 #define _RPMTAG_INTERNAL
00011 #include <rpmtag.h>
00012 #include "debug.h"
00013
00014
00015
00016
00022 static int tagLoadATags( ARGV_t * argvp,
00023 int (*cmp) (const void * avp, const void * bvp))
00024
00025
00026 {
00027 ARGV_t aTags = NULL;
00028 char * s = rpmExpand("%{?_arbitrary_tags}", NULL);
00029
00030 if (s && *s)
00031 (void) argvSplit(&aTags, s, ":");
00032 else
00033 aTags = xcalloc(1, sizeof(*aTags));
00034 if (aTags && aTags[0] && aTags[1])
00035 (void) argvSort(aTags, cmp);
00036 s = _free(s);
00037
00038 if (argvp)
00039 *argvp = aTags;
00040 else
00041 aTags = argvFree(aTags);
00042
00043 return 0;
00044
00045 }
00046
00053 static int tagCmpName(const void * avp, const void * bvp)
00054
00055 {
00056 headerTagTableEntry a = *(headerTagTableEntry *) avp;
00057 headerTagTableEntry b = *(headerTagTableEntry *) bvp;
00058 return strcmp(a->name, b->name);
00059 }
00060
00067 static int tagCmpValue(const void * avp, const void * bvp)
00068
00069 {
00070 headerTagTableEntry a = *(headerTagTableEntry *) avp;
00071 headerTagTableEntry b = *(headerTagTableEntry *) bvp;
00072 int ret = ((int)a->val - (int)b->val);
00073
00074 if (ret == 0)
00075 ret = ((int)strlen(b->name) - (int)strlen(a->name));
00076 return ret;
00077 }
00078
00086 static int tagLoadIndex(headerTagTableEntry ** ipp, size_t * np,
00087 int (*cmp) (const void * avp, const void * bvp))
00088
00089 {
00090 headerTagTableEntry tte, *ip;
00091 size_t n = 0;
00092
00093 ip = xcalloc(rpmTagTableSize, sizeof(*ip));
00094 n = 0;
00095
00096 for (tte = rpmTagTable; tte->name != NULL; tte++) {
00097 ip[n] = tte;
00098 n++;
00099 }
00100 assert(n == rpmTagTableSize);
00101
00102
00103 if (n > 1)
00104 qsort(ip, n, sizeof(*ip), cmp);
00105 *ipp = ip;
00106 *np = n;
00107 return 0;
00108 }
00109
00110 static char * _tagCanonicalize(const char * s)
00111
00112 {
00113 const char * se;
00114 size_t nb = 0;
00115 char * te;
00116 char * t;
00117 int c;
00118
00119 if (!strncasecmp(s, "RPMTAG_", sizeof("RPMTAG_")-1))
00120 s += sizeof("RPMTAG_") - 1;
00121 se = s;
00122 while ((c = (int)*se++) && xisalnum(c))
00123 nb++;
00124
00125 te = t = xmalloc(nb+1);
00126 if (*s != '\0' && nb > 0) {
00127 *te++ = (char) xtoupper((int)*s++);
00128 nb--;
00129 }
00130 while (nb--)
00131 *te++ = (char) xtolower((int)*s++);
00132 *te = '\0';
00133
00134 return t;
00135 }
00136
00137 static rpmTag _tagGenerate(const char *s)
00138
00139 {
00140 DIGEST_CTX ctx = rpmDigestInit(PGPHASHALGO_SHA1, RPMDIGEST_NONE);
00141 const char * digest = NULL;
00142 size_t digestlen = 0;
00143 size_t nb = strlen(s);
00144 rpmTag tag = 0;
00145 int xx;
00146
00147 xx = rpmDigestUpdate(ctx, s, nb);
00148 xx = rpmDigestFinal(ctx, &digest, &digestlen, 0);
00149 if (digest && digestlen > 4) {
00150 memcpy(&tag, digest + (digestlen - 4), 4);
00151 tag &= 0x3fffffff;
00152 tag |= 0x40000000;
00153 }
00154 digest = _free(digest);
00155 return tag;
00156 }
00157
00158
00159 static const char * _tagName(rpmTag tag)
00160
00161 ;
00162 static unsigned int _tagType(rpmTag tag)
00163
00164 ;
00165 static rpmTag _tagValue(const char * tagstr)
00166
00167 ;
00168
00169
00170 static struct headerTagIndices_s _rpmTags = {
00171 tagLoadIndex,
00172 NULL, 0, tagCmpName, _tagValue,
00173 NULL, 0, tagCmpValue, _tagName, _tagType,
00174 256, NULL, NULL, _tagCanonicalize, _tagGenerate
00175 };
00176
00177
00178
00179 headerTagIndices rpmTags = &_rpmTags;
00180
00181
00182
00183 static const char * _tagName(rpmTag tag)
00184 {
00185 char * nameBuf;
00186 size_t nameBufLen = 0;
00187 headerTagTableEntry t;
00188 size_t i, l, u;
00189 int comparison;
00190 int xx;
00191 char *s;
00192
00193 if (_rpmTags.aTags == NULL)
00194 xx = tagLoadATags(&_rpmTags.aTags, NULL);
00195 if (_rpmTags.byValue == NULL)
00196 xx = tagLoadIndex(&_rpmTags.byValue, &_rpmTags.byValueSize,
00197 tagCmpValue);
00198 if (_rpmTags.nameBufLen == 0)
00199 _rpmTags.nameBufLen = 256;
00200 if (_rpmTags.nameBuf == NULL)
00201 _rpmTags.nameBuf = xcalloc(1, _rpmTags.nameBufLen);
00202 nameBuf = _rpmTags.nameBuf;
00203 nameBuf[0] = nameBuf[1] = '\0';
00204 nameBufLen = _rpmTags.nameBufLen;
00205
00206 switch (tag) {
00207 case RPMDBI_PACKAGES:
00208 strncpy(nameBuf, "Packages", nameBufLen);
00209 break;
00210 case RPMDBI_DEPENDS:
00211 strncpy(nameBuf, "Depends", nameBufLen);
00212 break;
00213 case RPMDBI_ADDED:
00214 strncpy(nameBuf, "Added", nameBufLen);
00215 break;
00216 case RPMDBI_REMOVED:
00217 strncpy(nameBuf, "Removed", nameBufLen);
00218 break;
00219 case RPMDBI_AVAILABLE:
00220 strncpy(nameBuf, "Available", nameBufLen);
00221 break;
00222 case RPMDBI_HDLIST:
00223 strncpy(nameBuf, "Hdlist", nameBufLen);
00224 break;
00225 case RPMDBI_ARGLIST:
00226 strncpy(nameBuf, "Arglist", nameBufLen);
00227 break;
00228 case RPMDBI_FTSWALK:
00229 strncpy(nameBuf, "Ftswalk", nameBufLen);
00230 break;
00231
00232
00233 case RPMTAG_CONFLICTS:
00234 strncpy(nameBuf, "Conflictname", nameBufLen);
00235 break;
00236 case RPMTAG_HDRID:
00237 strncpy(nameBuf, "Sha1header", nameBufLen);
00238 break;
00239
00240 default:
00241 if (_rpmTags.byValue == NULL)
00242 break;
00243 l = 0;
00244 u = _rpmTags.byValueSize;
00245 while (l < u) {
00246 i = (l + u) / 2;
00247 t = _rpmTags.byValue[i];
00248
00249 comparison = ((int)tag - (int)t->val);
00250
00251 if (comparison < 0)
00252 u = i;
00253 else if (comparison > 0)
00254 l = i + 1;
00255 else {
00256
00257 while (i > 0 && tag == _rpmTags.byValue[i-1]->val) {
00258 i--;
00259 t--;
00260 }
00261 t = _rpmTags.byValue[i];
00262 s = (*_rpmTags.tagCanonicalize) (t->name);
00263 strncpy(nameBuf, s, nameBufLen);
00264 s = _free(s);
00265 break;
00266 }
00267 }
00268 break;
00269 }
00270 if (nameBuf[0] == '\0')
00271 xx = snprintf(nameBuf, nameBufLen, "Tag_0x%08x", (unsigned) tag);
00272 nameBuf[nameBufLen-1] = '\0';
00273
00274 return nameBuf;
00275
00276 }
00277
00278
00279 static unsigned int _tagType(rpmTag tag)
00280 {
00281 headerTagTableEntry t;
00282 size_t i, l, u;
00283 int comparison;
00284 int xx;
00285
00286 if (_rpmTags.aTags == NULL)
00287 xx = tagLoadATags(&_rpmTags.aTags, NULL);
00288 if (_rpmTags.byValue == NULL)
00289 xx = tagLoadIndex(&_rpmTags.byValue, &_rpmTags.byValueSize, tagCmpValue);
00290
00291 switch (tag) {
00292 case RPMDBI_PACKAGES:
00293 case RPMDBI_DEPENDS:
00294 case RPMDBI_ADDED:
00295 case RPMDBI_REMOVED:
00296 case RPMDBI_AVAILABLE:
00297 case RPMDBI_HDLIST:
00298 case RPMDBI_ARGLIST:
00299 case RPMDBI_FTSWALK:
00300 break;
00301 default:
00302 if (_rpmTags.byValue == NULL)
00303 break;
00304 l = 0;
00305 u = _rpmTags.byValueSize;
00306 while (l < u) {
00307 i = (l + u) / 2;
00308 t = _rpmTags.byValue[i];
00309
00310 comparison = ((int)tag - (int)t->val);
00311
00312 if (comparison < 0)
00313 u = i;
00314 else if (comparison > 0)
00315 l = i + 1;
00316 else {
00317
00318 while (i > 0 && t->val == _rpmTags.byValue[i-1]->val) {
00319 i--;
00320 t--;
00321 }
00322 return t->type;
00323 }
00324 }
00325 break;
00326 }
00327 return 0;
00328 }
00329
00330 static rpmTag _tagValue(const char * tagstr)
00331 {
00332 headerTagTableEntry t;
00333 int comparison;
00334 size_t i, l, u;
00335 const char * s;
00336 rpmTag tag;
00337 int xx;
00338
00339
00340 if (!strncasecmp(tagstr, "RPMTAG_", sizeof("RPMTAG_")-1))
00341 tagstr += sizeof("RPMTAG_") - 1;
00342
00343 if (!xstrcasecmp(tagstr, "Packages"))
00344 return RPMDBI_PACKAGES;
00345 if (!xstrcasecmp(tagstr, "Depends"))
00346 return RPMDBI_DEPENDS;
00347 if (!xstrcasecmp(tagstr, "Added"))
00348 return RPMDBI_ADDED;
00349 if (!xstrcasecmp(tagstr, "Removed"))
00350 return RPMDBI_REMOVED;
00351 if (!xstrcasecmp(tagstr, "Available"))
00352 return RPMDBI_AVAILABLE;
00353 if (!xstrcasecmp(tagstr, "Hdlist"))
00354 return RPMDBI_HDLIST;
00355 if (!xstrcasecmp(tagstr, "Arglist"))
00356 return RPMDBI_ARGLIST;
00357 if (!xstrcasecmp(tagstr, "Ftswalk"))
00358 return RPMDBI_FTSWALK;
00359
00360 if (_rpmTags.aTags == NULL)
00361 xx = tagLoadATags(&_rpmTags.aTags, NULL);
00362 if (_rpmTags.byName == NULL)
00363 xx = tagLoadIndex(&_rpmTags.byName, &_rpmTags.byNameSize, tagCmpName);
00364 if (_rpmTags.byName == NULL)
00365 goto exit;
00366
00367 l = 0;
00368 u = _rpmTags.byNameSize;
00369 while (l < u) {
00370 i = (l + u) / 2;
00371 t = _rpmTags.byName[i];
00372
00373 comparison = xstrcasecmp(tagstr, t->name + (sizeof("RPMTAG_")-1));
00374
00375 if (comparison < 0)
00376 u = i;
00377 else if (comparison > 0)
00378 l = i + 1;
00379 else
00380 return t->val;
00381 }
00382
00383 exit:
00384
00385 s = _tagCanonicalize(tagstr);
00386 tag = _tagGenerate(s);
00387 s = _free(s);
00388 return tag;
00389 }
00390
00391 const char * tagName(rpmTag tag)
00392 {
00393 return ((*rpmTags->tagName)(tag));
00394 }
00395
00396 unsigned int tagType(rpmTag tag)
00397 {
00398 return ((*rpmTags->tagType)(tag));
00399 }
00400
00401 rpmTag tagValue(const char * tagstr)
00402 {
00403 return ((*rpmTags->tagValue)(tagstr));
00404 }
00405
00406 char * tagCanonicalize(const char * s)
00407 {
00408 return ((*rpmTags->tagCanonicalize)(s));
00409 }
00410
00411 rpmTag tagGenerate(const char * s)
00412 {
00413 return ((*rpmTags->tagGenerate)(s));
00414 }
00415
00416 void tagClean(headerTagIndices _rpmTags)
00417 {
00418 if (_rpmTags == NULL)
00419 _rpmTags = rpmTags;
00420 if (_rpmTags) {
00421 _rpmTags->nameBuf = _free(_rpmTags->nameBuf);
00422 _rpmTags->byName = _free(_rpmTags->byName);
00423 _rpmTags->byValue = _free(_rpmTags->byValue);
00424 _rpmTags->aTags = argvFree(_rpmTags->aTags);
00425 }
00426 }
00427
00428 tagStore_t tagStoreFree(tagStore_t dbiTags, size_t dbiNTags)
00429 {
00430 if (dbiTags != NULL) {
00431 size_t i;
00432 for (i = 0; i < dbiNTags; i++) {
00433 dbiTags[i].str = _free(dbiTags[i].str);
00434 dbiTags[i].val = freeStringBuf(dbiTags[i].val);
00435 }
00436 dbiTags = _free(dbiTags);
00437 }
00438 return NULL;
00439 }
00440
00441 #if defined(SUPPORT_IMPLICIT_TAG_DATA_TYPES)
00442
00446 void tagTypeValidate(HE_t he)
00447 {
00448
00449 if (!he->signature)
00450 if (!(he->tag == 261 || he->tag == 269))
00451 if ((tagType(he->tag) & 0xffff) != he->t)
00452 fprintf(stderr, "==> warning: tag %u type(0x%x) != implicit type(0x%x)\n", (unsigned) he->tag, he->t, tagType(he->tag));
00453 }
00454 #endif