5 /* RPM - Copyright (C) 1995-2002 Red Hat Software */
7 /* Data written to file descriptors is in network byte order. */
8 /* Data read from file descriptors is expected to be in */
9 /* network byte order and is converted on the fly to host order. */
13 #include <rpm/rpmtypes.h>
14 #include <rpm/rpmstring.h>
15 #include "lib/header_internal.h"
23 const unsigned char rpm_header_magic[8] = {
24 0x8e, 0xad, 0xe8, 0x01, 0x00, 0x00, 0x00, 0x00
28 * Alignment needed for header data types.
30 static const int typeAlign[16] = {
31 1, /*!< RPM_NULL_TYPE */
32 1, /*!< RPM_CHAR_TYPE */
33 1, /*!< RPM_INT8_TYPE */
34 2, /*!< RPM_INT16_TYPE */
35 4, /*!< RPM_INT32_TYPE */
36 8, /*!< RPM_INT64_TYPE */
37 1, /*!< RPM_STRING_TYPE */
38 1, /*!< RPM_BIN_TYPE */
39 1, /*!< RPM_STRING_ARRAY_TYPE */
40 1, /*!< RPM_I18NSTRING_TYPE */
50 * Size of header data types.
52 static const int typeSizes[16] = {
53 0, /*!< RPM_NULL_TYPE */
54 1, /*!< RPM_CHAR_TYPE */
55 1, /*!< RPM_INT8_TYPE */
56 2, /*!< RPM_INT16_TYPE */
57 4, /*!< RPM_INT32_TYPE */
58 8, /*!< RPM_INT64_TYPE */
59 -1, /*!< RPM_STRING_TYPE */
60 1, /*!< RPM_BIN_TYPE */
61 -1, /*!< RPM_STRING_ARRAY_TYPE */
62 -1, /*!< RPM_I18NSTRING_TYPE */
72 * Maximum no. of bytes permitted in a header.
74 static const size_t headerMaxbytes = (32*1024*1024);
77 * HEADER_EXT_TAG format function prototype.
78 * This is allowed to fail, which indicates the tag doesn't exist.
81 * @retval td tag data container
82 * @param flags modifier flags
83 * @return 0 on success
85 typedef int (*headerTagTagFunction) (Header h, rpmtd td, headerGetFlags hgflags);
87 extern void *rpmHeaderTagFunc(rpmTag tag);
89 Header headerLink(Header h)
91 if (h == NULL) return NULL;
95 fprintf(stderr, "--> h %p ++ %d at %s:%u\n", h, h->nrefs, __FILE__, __LINE__);
100 Header headerUnlink(Header h)
102 if (h == NULL) return NULL;
104 fprintf(stderr, "--> h %p -- %d at %s:%u\n", h, h->nrefs, __FILE__, __LINE__);
109 Header headerFree(Header h)
111 (void) headerUnlink(h);
113 if (h == NULL || h->nrefs > 0)
114 return NULL; /* XXX return previous header? */
117 indexEntry entry = h->index;
119 for (i = 0; i < h->indexUsed; i++, entry++) {
120 if ((h->flags & HEADERFLAG_ALLOCATED) && ENTRY_IS_REGION(entry)) {
121 if (entry->length > 0) {
122 int32_t * ei = entry->data;
123 if ((ei - 2) == h->blob) h->blob = _free(h->blob);
126 } else if (!ENTRY_IN_REGION(entry)) {
127 entry->data = _free(entry->data);
131 h->index = _free(h->index);
138 Header headerNew(void)
140 Header h = xcalloc(1, sizeof(*h));
143 h->indexAlloced = INDEX_MALLOC_SIZE;
146 h->flags |= HEADERFLAG_SORTED;
148 h->index = (h->indexAlloced
149 ? xcalloc(h->indexAlloced, sizeof(*h->index))
153 return headerLink(h);
156 int headerVerifyInfo(int il, int dl, const void * pev, void * iv, int negate)
158 entryInfo pe = (entryInfo) pev;
162 for (i = 0; i < il; i++) {
163 info->tag = ntohl(pe[i].tag);
164 info->type = ntohl(pe[i].type);
165 info->offset = ntohl(pe[i].offset);
167 info->offset = -info->offset;
168 info->count = ntohl(pe[i].count);
170 if (hdrchkType(info->type))
172 if (hdrchkAlign(info->type, info->offset))
174 if (!negate && hdrchkRange(dl, info->offset))
176 if (hdrchkData(info->count))
185 static int indexCmp(const void * avp, const void * bvp)
187 indexEntry ap = (indexEntry) avp, bp = (indexEntry) bvp;
188 return (ap->info.tag - bp->info.tag);
191 void headerSort(Header h)
193 if (!(h->flags & HEADERFLAG_SORTED)) {
194 qsort(h->index, h->indexUsed, sizeof(*h->index), indexCmp);
195 h->flags |= HEADERFLAG_SORTED;
201 static int offsetCmp(const void * avp, const void * bvp)
203 indexEntry ap = (indexEntry) avp, bp = (indexEntry) bvp;
204 int rc = (ap->info.offset - bp->info.offset);
207 /* Within a region, entries sort by address. Added drips sort by tag. */
208 if (ap->info.offset < 0)
209 rc = (((char *)ap->data) - ((char *)bp->data));
211 rc = (ap->info.tag - bp->info.tag);
217 * Restore tags in header to original ordering.
220 void headerUnsort(Header h)
222 qsort(h->index, h->indexUsed, sizeof(*h->index), offsetCmp);
225 unsigned headerSizeof(Header h, enum hMagic magicp)
228 unsigned int size = 0;
229 unsigned int pad = 0;
238 case HEADER_MAGIC_YES:
239 size += sizeof(rpm_header_magic);
241 case HEADER_MAGIC_NO:
245 size += 2 * sizeof(int32_t); /* count of index entries */
247 for (i = 0, entry = h->index; i < h->indexUsed; i++, entry++) {
250 /* Regions go in as is ... */
251 if (ENTRY_IS_REGION(entry)) {
252 size += entry->length;
253 /* XXX Legacy regions do not include the region tag and data. */
254 if (i == 0 && (h->flags & HEADERFLAG_LEGACY))
255 size += sizeof(struct entryInfo_s) + entry->info.count;
259 /* ... and region elements are skipped. */
260 if (entry->info.offset < 0)
264 type = entry->info.type;
265 if (typeSizes[type] > 1) {
266 unsigned diff = typeSizes[type] - (size % typeSizes[type]);
267 if (diff != typeSizes[type]) {
273 size += sizeof(struct entryInfo_s) + entry->length;
280 * Return length of entry data.
281 * @param type entry data type
282 * @param p entry data
283 * @param count entry item count
284 * @param onDisk data is concatenated strings (with NUL's))?
285 * @param pend pointer to end of data (or NULL)
286 * @return no. bytes in data, -1 on failure
288 static int dataLength(rpmTagType type, rpm_constdata_t p, rpm_count_t count,
289 int onDisk, rpm_constdata_t pend)
291 const unsigned char * s = p;
292 const unsigned char * se = pend;
296 case RPM_STRING_TYPE:
304 length++; /* count nul terminator too. */
307 case RPM_STRING_ARRAY_TYPE:
308 case RPM_I18NSTRING_TYPE:
309 /* These are like RPM_STRING_TYPE, except they're *always* an array */
310 /* Compute sum of length of all strings, including nul terminators */
314 length++; /* count nul terminator too */
322 const char ** av = (const char **)p;
324 /* add one for null termination */
325 length += strlen(*av++) + 1;
331 if (typeSizes[type] == -1)
333 length = typeSizes[(type & 0xf)] * count;
334 if (length < 0 || (se && (s + length) > se))
343 * Swap int32_t and int16_t arrays within header region.
345 * If a header region tag is in the set to be swabbed, as the data for a
346 * a header region is located after all other tag data.
348 * @param entry header entry
349 * @param il no. of entries
350 * @param dl start no. bytes of data
351 * @param pe header physical entry pointer (swapped)
352 * @param dataStart header data start
353 * @param dataEnd header data end
354 * @param regionid region offset
355 * @return no. bytes of data in region, -1 on error
357 static int regionSwab(indexEntry entry, int il, int dl,
359 unsigned char * dataStart,
360 const unsigned char * dataEnd,
363 struct indexEntry_s ieprev;
365 memset(&ieprev, 0, sizeof(ieprev));
366 for (; il > 0; il--, pe++) {
367 struct indexEntry_s ie;
370 ie.info.tag = ntohl(pe->tag);
371 ie.info.type = ntohl(pe->type);
372 ie.info.count = ntohl(pe->count);
373 ie.info.offset = ntohl(pe->offset);
375 if (hdrchkType(ie.info.type))
377 if (hdrchkData(ie.info.count))
379 if (hdrchkData(ie.info.offset))
381 if (hdrchkAlign(ie.info.type, ie.info.offset))
384 ie.data = dataStart + ie.info.offset;
385 if (dataEnd && (unsigned char *)ie.data >= dataEnd)
388 ie.length = dataLength(ie.info.type, ie.data, ie.info.count, 1, dataEnd);
389 if (ie.length < 0 || hdrchkData(ie.length))
395 ie.info.offset = regionid;
396 *entry = ie; /* structure assignment */
402 if (typeSizes[type] > 1) {
403 unsigned diff = typeSizes[type] - (dl % typeSizes[type]);
404 if (diff != typeSizes[type]) {
406 if (ieprev.info.type == RPM_I18NSTRING_TYPE)
407 ieprev.length += diff;
411 /* Perform endian conversions */
412 switch (ntohl(pe->type)) {
414 { uint64_t * it = ie.data;
415 for (; ie.info.count > 0; ie.info.count--, it += 1) {
416 if (dataEnd && ((unsigned char *)it) >= dataEnd)
422 { int32_t * it = ie.data;
423 for (; ie.info.count > 0; ie.info.count--, it += 1) {
424 if (dataEnd && ((unsigned char *)it) >= dataEnd)
430 { int16_t * it = ie.data;
431 for (; ie.info.count > 0; ie.info.count--, it += 1) {
432 if (dataEnd && ((unsigned char *)it) >= dataEnd)
440 ieprev = ie; /* structure assignment */
449 * @retval *lengthPtr no. bytes in unloaded header blob
450 * @return unloaded header blob (NULL on error)
452 static void * doHeaderUnload(Header h,
466 int drlen, ndribbles;
469 /* Sort entries by (offset,tag). */
472 /* Compute (il,dl) for all tags, including those deleted in region. */
474 drlen = ndribbles = driplen = ndrips = 0;
475 for (i = 0, entry = h->index; i < h->indexUsed; i++, entry++) {
476 if (ENTRY_IS_REGION(entry)) {
477 int32_t rdl = -entry->info.offset; /* negative offset */
478 int32_t ril = rdl/sizeof(*pe);
479 int rid = entry->info.offset;
482 dl += entry->rdlen + entry->info.count;
483 /* XXX Legacy regions do not include the region tag and data. */
484 if (i == 0 && (h->flags & HEADERFLAG_LEGACY))
487 /* Skip rest of entries in region, but account for dribbles. */
488 for (; i < h->indexUsed && entry->info.offset <= rid+1; i++, entry++) {
489 if (entry->info.offset <= rid)
493 type = entry->info.type;
494 if (typeSizes[type] > 1) {
495 unsigned diff = typeSizes[type] - (dl % typeSizes[type]);
496 if (diff != typeSizes[type]) {
505 drlen += entry->length;
513 /* Ignore deleted drips. */
514 if (entry->data == NULL || entry->length <= 0)
518 type = entry->info.type;
519 if (typeSizes[type] > 1) {
520 unsigned diff = typeSizes[type] - (dl % typeSizes[type]);
521 if (diff != typeSizes[type]) {
530 driplen += entry->length;
534 /* Sanity checks on header intro. */
535 if (hdrchkTags(il) || hdrchkData(dl))
538 len = sizeof(il) + sizeof(dl) + (il * sizeof(*pe)) + dl;
544 pe = (entryInfo) &ei[2];
545 dataStart = te = (char *) (pe + il);
548 for (i = 0, entry = h->index; i < h->indexUsed; i++, entry++) {
554 if (entry->data == NULL || entry->length <= 0)
557 t = (unsigned char*)te;
558 pe->tag = htonl(entry->info.tag);
559 pe->type = htonl(entry->info.type);
560 pe->count = htonl(entry->info.count);
562 if (ENTRY_IS_REGION(entry)) {
563 int32_t rdl = -entry->info.offset; /* negative offset */
564 int32_t ril = rdl/sizeof(*pe) + ndribbles;
565 int rid = entry->info.offset;
567 src = (char *)entry->data;
568 rdlen = entry->rdlen;
570 /* XXX Legacy regions do not include the region tag and data. */
571 if (i == 0 && (h->flags & HEADERFLAG_LEGACY)) {
574 memcpy(pe+1, src, rdl);
575 memcpy(te, src + rdl, rdlen);
578 pe->offset = htonl(te - dataStart);
581 stei[2] = htonl(-rdl-entry->info.count);
583 memcpy(te, stei, entry->info.count);
584 te += entry->info.count;
586 rdlen += entry->info.count;
588 count = regionSwab(NULL, ril, 0, pe, t, NULL, 0);
594 memcpy(pe+1, src + sizeof(*pe), ((ril-1) * sizeof(*pe)));
595 memcpy(te, src + (ril * sizeof(*pe)), rdlen+entry->info.count+drlen);
598 entryInfo se = (entryInfo)src;
599 int off = ntohl(se->offset);
600 pe->offset = (off) ? htonl(te - dataStart) : htonl(off);
602 te += entry->info.count + drlen;
604 count = regionSwab(NULL, ril, 0, pe, t, NULL, 0);
605 if (count != (rdlen + entry->info.count + drlen))
609 /* Skip rest of entries in region. */
610 while (i < h->indexUsed && entry->info.offset <= rid+1) {
620 /* Ignore deleted drips. */
621 if (entry->data == NULL || entry->length <= 0)
625 type = entry->info.type;
626 if (typeSizes[type] > 1) {
628 diff = typeSizes[type] - ((te - dataStart) % typeSizes[type]);
629 if (diff != typeSizes[type]) {
636 pe->offset = htonl(te - dataStart);
638 /* copy data w/ endian conversions */
639 switch (entry->info.type) {
641 count = entry->info.count;
644 *((uint64_t *)te) = htonll(*((uint64_t *)src));
645 te += sizeof(uint64_t);
646 src += sizeof(uint64_t);
651 count = entry->info.count;
654 *((int32_t *)te) = htonl(*((int32_t *)src));
655 te += sizeof(int32_t);
656 src += sizeof(int32_t);
661 count = entry->info.count;
664 *((int16_t *)te) = htons(*((int16_t *)src));
665 te += sizeof(int16_t);
666 src += sizeof(int16_t);
671 memcpy(te, entry->data, entry->length);
678 /* Insure that there are no memcpy underruns/overruns. */
679 if (((char *)pe) != dataStart)
681 if ((((char *)ei)+len) != te)
687 h->flags &= ~HEADERFLAG_SORTED;
697 void * headerUnload(Header h)
700 void * uh = doHeaderUnload(h, &length);
705 * Find matching (tag,type) entry in header.
707 * @param tag entry tag
708 * @param type entry type
709 * @return header entry
712 indexEntry findEntry(Header h, rpmTag tag, rpmTagType type)
714 indexEntry entry, entry2, last;
715 struct indexEntry_s key;
717 if (h == NULL) return NULL;
718 if (!(h->flags & HEADERFLAG_SORTED)) headerSort(h);
723 bsearch(&key, h->index, h->indexUsed, sizeof(*h->index), indexCmp);
727 if (type == RPM_NULL_TYPE)
731 while (entry->info.tag == tag && entry->info.type != type &&
732 entry > h->index) entry--;
734 if (entry->info.tag == tag && entry->info.type == type)
737 last = h->index + h->indexUsed;
738 /* FIX: entry2 = entry. Code looks bogus as well. */
739 while (entry2->info.tag == tag && entry2->info.type != type &&
740 entry2 < last) entry2++;
742 if (entry->info.tag == tag && entry->info.type == type)
748 int headerDel(Header h, rpmTag tag)
750 indexEntry last = h->index + h->indexUsed;
751 indexEntry entry, first;
754 entry = findEntry(h, tag, RPM_NULL_TYPE);
755 if (!entry) return 1;
757 /* Make sure entry points to the first occurence of this tag. */
758 while (entry > h->index && (entry - 1)->info.tag == tag)
761 /* Free data for tags being removed. */
762 for (first = entry; first < last; first++) {
764 if (first->info.tag != tag)
769 if (ENTRY_IN_REGION(first))
774 ne = (first - entry);
779 memmove(entry, first, (ne * sizeof(*entry)));
785 Header headerLoad(void * uh)
787 int32_t * ei = (int32_t *) uh;
788 int32_t il = ntohl(ei[0]); /* index length */
789 int32_t dl = ntohl(ei[1]); /* data length */
790 size_t pvlen = sizeof(il) + sizeof(dl) +
791 (il * sizeof(struct entryInfo_s)) + dl;
795 unsigned char * dataStart;
796 unsigned char * dataEnd;
801 /* Sanity checks on header intro. */
802 if (hdrchkTags(il) || hdrchkData(dl))
806 pe = (entryInfo) &ei[2];
807 dataStart = (unsigned char *) (pe + il);
808 dataEnd = dataStart + dl;
810 h = xcalloc(1, sizeof(*h));
812 h->indexAlloced = il + 1;
815 h->index = xcalloc(h->indexAlloced, sizeof(*h->index));
816 h->flags |= HEADERFLAG_SORTED;
822 if (!(htonl(pe->tag) < HEADER_I18NTABLE)) {
823 h->flags |= HEADERFLAG_LEGACY;
824 entry->info.type = REGION_TAG_TYPE;
825 entry->info.tag = HEADER_IMAGE;
826 entry->info.count = REGION_TAG_COUNT;
827 entry->info.offset = ((unsigned char *)pe - dataStart); /* negative offset */
830 entry->length = pvlen - sizeof(il) - sizeof(dl);
831 rdlen = regionSwab(entry+1, il, 0, pe, dataStart, dataEnd, entry->info.offset);
834 entry->rdlen = rdlen;
841 h->flags &= ~HEADERFLAG_LEGACY;
843 entry->info.type = htonl(pe->type);
844 entry->info.count = htonl(pe->count);
846 if (hdrchkType(entry->info.type))
848 if (hdrchkTags(entry->info.count))
851 { int off = ntohl(pe->offset);
856 size_t nb = REGION_TAG_COUNT;
858 /* XXX Hmm, why the copy? */
859 memcpy(&stei, dataStart + off, nb);
860 rdl = -ntohl(stei[2]); /* negative offset */
861 ril = rdl/sizeof(*pe);
862 if (hdrchkTags(ril) || hdrchkData(rdl))
864 entry->info.tag = htonl(pe->tag);
867 rdl = (ril * sizeof(struct entryInfo_s));
868 entry->info.tag = HEADER_IMAGE;
871 entry->info.offset = -rdl; /* negative offset */
874 entry->length = pvlen - sizeof(il) - sizeof(dl);
875 rdlen = regionSwab(entry+1, ril-1, 0, pe+1, dataStart, dataEnd, entry->info.offset);
878 entry->rdlen = rdlen;
880 if (ril < h->indexUsed) {
881 indexEntry newEntry = entry + ril;
882 int ne = (h->indexUsed - ril);
883 int rid = entry->info.offset+1;
886 /* Load dribble entries from region. */
887 rc = regionSwab(newEntry, ne, 0, pe+ril, dataStart, dataEnd, rid);
892 { indexEntry firstEntry = newEntry;
893 int save = h->indexUsed;
896 /* Dribble entries replace duplicate region entries. */
898 for (j = 0; j < ne; j++, newEntry++) {
899 (void) headerDel(h, newEntry->info.tag);
900 if (newEntry->info.tag == RPMTAG_BASENAMES)
901 (void) headerDel(h, RPMTAG_OLDFILENAMES);
904 /* If any duplicate entries were replaced, move new entries down. */
905 if (h->indexUsed < (save - ne)) {
906 memmove(h->index + h->indexUsed, firstEntry,
907 (ne * sizeof(*entry)));
914 h->flags &= ~HEADERFLAG_SORTED;
916 h->flags |= HEADERFLAG_ALLOCATED;
922 h->index = _free(h->index);
928 Header headerReload(Header h, rpmTag tag)
932 void * uh = doHeaderUnload(h, &length);
942 if (ENTRY_IS_REGION(nh->index)) {
943 if (tag == HEADER_SIGNATURES || tag == HEADER_IMMUTABLE)
944 nh->index[0].info.tag = tag;
949 Header headerCopyLoad(const void * uh)
951 int32_t * ei = (int32_t *) uh;
952 int32_t il = ntohl(ei[0]); /* index length */
953 int32_t dl = ntohl(ei[1]); /* data length */
954 size_t pvlen = sizeof(il) + sizeof(dl) +
955 (il * sizeof(struct entryInfo_s)) + dl;
959 /* Sanity checks on header intro. */
960 if (!(hdrchkTags(il) || hdrchkData(dl)) && pvlen < headerMaxbytes) {
961 nuh = memcpy(xmalloc(pvlen), uh, pvlen);
962 if ((h = headerLoad(nuh)) == NULL)
969 * Read (and load) header from file handle.
970 * @param fd file handle
971 * @param magicp read (and verify) 8 bytes of (magic, 0)?
972 * @return header (or NULL on error)
974 Header headerRead(FD_t fd, enum hMagic magicp)
986 memset(block, 0, sizeof(block));
988 if (magicp == HEADER_MAGIC_YES)
992 if (timedRead(fd, (char *)block, i*sizeof(*block)) != (i * sizeof(*block)))
997 if (magicp == HEADER_MAGIC_YES) {
999 if (memcmp(&magic, rpm_header_magic, sizeof(magic)))
1001 reserved = block[i++];
1004 il = ntohl(block[i]); i++;
1005 dl = ntohl(block[i]); i++;
1007 len = sizeof(il) + sizeof(dl) + (il * sizeof(struct entryInfo_s)) + dl;
1009 /* Sanity checks on header intro. */
1010 if (hdrchkTags(il) || hdrchkData(dl) || len > headerMaxbytes)
1016 len -= sizeof(il) + sizeof(dl);
1019 if (timedRead(fd, (char *)&ei[2], len) != len)
1025 if (h == NULL && ei != NULL) {
1031 int headerWrite(FD_t fd, Header h, enum hMagic magicp)
1039 uh = doHeaderUnload(h, &length);
1043 case HEADER_MAGIC_YES:
1044 nb = Fwrite(rpm_header_magic, sizeof(uint8_t), sizeof(rpm_header_magic), fd);
1045 if (nb != sizeof(rpm_header_magic))
1048 case HEADER_MAGIC_NO:
1052 nb = Fwrite(uh, sizeof(char), length, fd);
1056 return (nb == length ? 0 : 1);
1059 int headerIsEntry(Header h, rpmTag tag)
1061 /* FIX: h modified by sort. */
1062 return (findEntry(h, tag, RPM_NULL_TYPE) ? 1 : 0);
1067 * Retrieve data from header entry.
1068 * Relevant flags (others are ignored), if neither is set allocation
1069 * behavior depends on data type(!)
1070 * HEADERGET_MINMEM: return pointers to header memory
1071 * HEADERGET_ALLOC: always return malloced memory, overrides MINMEM
1073 * @todo Permit retrieval of regions other than HEADER_IMUTABLE.
1074 * @param entry header entry
1075 * @param td tag data container
1076 * @param minMem string pointers refer to header memory?
1077 * @param flags flags to control memory allocation
1078 * @return 1 on success, otherwise error.
1080 static int copyTdEntry(const indexEntry entry, rpmtd td, headerGetFlags flags)
1082 rpm_count_t count = entry->info.count;
1083 int rc = 1; /* XXX 1 on success. */
1084 /* ALLOC overrides MINMEM */
1085 int allocMem = flags & HEADERGET_ALLOC;
1086 int minMem = allocMem ? 0 : flags & HEADERGET_MINMEM;
1087 int argvArray = (flags & HEADERGET_ARGV) ? 1 : 0;
1090 td->flags = RPMTD_IMMUTABLE;
1091 switch (entry->info.type) {
1094 * XXX This only works for
1095 * XXX "sealed" HEADER_IMMUTABLE/HEADER_SIGNATURES/HEADER_IMAGE.
1096 * XXX This will *not* work for unsealed legacy HEADER_IMAGE (i.e.
1097 * XXX a legacy header freshly read, but not yet unloaded to the rpmdb).
1099 if (ENTRY_IS_REGION(entry)) {
1100 int32_t * ei = ((int32_t *)entry->data) - 2;
1101 entryInfo pe = (entryInfo) (ei + 2);
1102 unsigned char * dataStart = (unsigned char *) (pe + ntohl(ei[0]));
1103 int32_t rdl = -entry->info.offset; /* negative offset */
1104 int32_t ril = rdl/sizeof(*pe);
1107 count = 2 * sizeof(*ei) + (ril * sizeof(*pe)) + rdl;
1108 if (entry->info.tag == HEADER_IMAGE) {
1112 count += REGION_TAG_COUNT;
1113 rdl += REGION_TAG_COUNT;
1116 td->data = xmalloc(count);
1117 ei = (int32_t *) td->data;
1121 pe = (entryInfo) memcpy(ei + 2, pe, (ril * sizeof(*pe)));
1123 dataStart = (unsigned char *) memcpy(pe + ril, dataStart, rdl);
1125 rc = regionSwab(NULL, ril, 0, pe, dataStart, dataStart + rdl, 0);
1126 /* don't return data on failure */
1128 td->data = _free(td->data);
1130 /* XXX 1 on success. */
1131 rc = (rc < 0) ? 0 : 1;
1133 count = entry->length;
1135 ? memcpy(xmalloc(count), entry->data, count)
1139 case RPM_STRING_TYPE:
1141 td->data = allocMem ? xstrdup(entry->data) : entry->data;
1144 case RPM_STRING_ARRAY_TYPE:
1145 case RPM_I18NSTRING_TYPE:
1146 { const char ** ptrEntry;
1147 int tableSize = (count + argvArray) * sizeof(char *);
1152 td->data = xmalloc(tableSize);
1153 ptrEntry = (const char **) td->data;
1156 t = xmalloc(tableSize + entry->length);
1157 td->data = (void *)t;
1158 ptrEntry = (const char **) td->data;
1160 memcpy(t, entry->data, entry->length);
1162 for (i = 0; i < count; i++) {
1169 td->flags |= RPMTD_ARGV;
1174 case RPM_INT16_TYPE:
1175 case RPM_INT32_TYPE:
1176 case RPM_INT64_TYPE:
1178 td->data = xmalloc(entry->length);
1179 memcpy(td->data, entry->data, entry->length);
1181 td->data = entry->data;
1185 /* WTH? Don't mess with unknown data types... */
1190 td->type = entry->info.type;
1193 if (td->data && entry->data != td->data) {
1194 td->flags |= RPMTD_ALLOCED;
1201 * Does locale match entry in header i18n table?
1204 * The range [l,le) contains the next locale to match:
1205 * ll[_CC][.EEEEE][@dddd]
1207 * ll ISO language code (in lowercase).
1208 * CC (optional) ISO coutnry code (in uppercase).
1209 * EEEEE (optional) encoding (not really standardized).
1210 * dddd (optional) dialect.
1213 * @param td header i18n table data, NUL terminated
1214 * @param l start of locale to match
1215 * @param le end of locale to match
1216 * @return 1 on good match, 2 on weak match, 0 on no match
1218 static int headerMatchLocale(const char *td, const char *l, const char *le)
1222 /* First try a complete match. */
1223 if (strlen(td) == (le-l) && rstreqn(td, l, (le - l)))
1226 /* Next, try stripping optional dialect and matching. */
1227 for (fe = l; fe < le && *fe != '@'; fe++)
1229 if (fe < le && rstreqn(td, l, (fe - l)))
1232 /* Next, try stripping optional codeset and matching. */
1233 for (fe = l; fe < le && *fe != '.'; fe++)
1235 if (fe < le && rstreqn(td, l, (fe - l)))
1238 /* Finally, try stripping optional country code and matching. */
1239 for (fe = l; fe < le && *fe != '_'; fe++)
1241 if (fe < le && rstreqn(td, l, (fe - l)))
1248 * Return i18n string from header that matches locale.
1250 * @param entry i18n string data
1251 * @retval td tag data container
1252 * @param flags flags to control allocation
1255 static int copyI18NEntry(Header h, indexEntry entry, rpmtd td,
1256 headerGetFlags flags)
1258 const char *lang, *l, *le;
1261 td->type = RPM_STRING_TYPE;
1263 /* if no match, just return the first string */
1264 td->data = entry->data;
1266 /* XXX Drepper sez' this is the order. */
1267 if ((lang = getenv("LANGUAGE")) == NULL &&
1268 (lang = getenv("LC_ALL")) == NULL &&
1269 (lang = getenv("LC_MESSAGES")) == NULL &&
1270 (lang = getenv("LANG")) == NULL)
1273 if ((table = findEntry(h, HEADER_I18NTABLE, RPM_STRING_ARRAY_TYPE)) == NULL)
1276 for (l = lang; *l != '\0'; l = le) {
1278 char *ed, *ed_weak = NULL;
1281 while (*l && *l == ':') /* skip leading colons */
1285 for (le = l; *le && *le != ':'; le++) /* find end of this locale */
1288 /* For each entry in the header ... */
1289 for (langNum = 0, t = table->data, ed = entry->data;
1290 langNum < entry->info.count;
1291 langNum++, t += strlen(t) + 1, ed += strlen(ed) + 1) {
1293 int match = headerMatchLocale(t, l, le);
1297 } else if (match == 2) {
1308 if (flags & HEADERGET_ALLOC) {
1309 td->data = xstrdup(td->data);
1310 td->flags |= RPMTD_ALLOCED;
1317 * Retrieve tag data from header.
1319 * @retval td tag data container
1320 * @param flags flags to control retrieval
1321 * @return 1 on success, 0 on not found
1323 static int intGetTdEntry(Header h, rpmtd td, headerGetFlags flags)
1328 /* First find the tag */
1329 /* FIX: h modified by sort. */
1330 entry = findEntry(h, td->tag, RPM_NULL_TYPE);
1331 if (entry == NULL) {
1332 /* Td is zeroed above, just return... */
1336 if (flags & HEADERGET_RAW) {
1337 rc = copyTdEntry(entry, td, flags);
1339 switch (entry->info.type) {
1340 case RPM_I18NSTRING_TYPE:
1341 rc = copyI18NEntry(h, entry, td, flags);
1344 rc = copyTdEntry(entry, td, flags);
1349 /* XXX 1 on success */
1350 return ((rc == 1) ? 1 : 0);
1353 int headerGet(Header h, rpmTag tag, rpmtd td, headerGetFlags flags)
1356 headerTagTagFunction tagfunc = intGetTdEntry;
1358 if (td == NULL) return 0;
1363 if (flags & HEADERGET_EXT) {
1364 headerTagTagFunction extfunc = rpmHeaderTagFunc(tag);
1365 if (extfunc) tagfunc = extfunc;
1367 rc = tagfunc(h, td, flags);
1369 assert(tag == td->tag);
1375 static void copyData(rpmTagType type, rpm_data_t dstPtr,
1376 rpm_constdata_t srcPtr, rpm_count_t cnt, int dataLength)
1379 case RPM_STRING_ARRAY_TYPE:
1380 case RPM_I18NSTRING_TYPE:
1381 { const char ** av = (const char **) srcPtr;
1384 while (cnt-- > 0 && dataLength > 0) {
1386 if ((s = *av++) == NULL)
1390 } while (s[-1] && --dataLength > 0);
1395 memmove(dstPtr, srcPtr, dataLength);
1401 * Return (malloc'ed) copy of entry data.
1402 * @param type entry data type
1403 * @param p entry data
1404 * @param c entry item count
1405 * @retval lengthPtr no. bytes in returned data
1406 * @return (malloc'ed) copy of entry data, NULL on error
1409 grabData(rpmTagType type, rpm_constdata_t p, rpm_count_t c, int * lengthPtr)
1411 rpm_data_t data = NULL;
1414 length = dataLength(type, p, c, 0, NULL);
1416 data = xmalloc(length);
1417 copyData(type, data, p, c, length);
1421 *lengthPtr = length;
1425 static int intAddEntry(Header h, rpmtd td)
1431 /* Count must always be >= 1 for headerAddEntry. */
1435 if (hdrchkType(td->type))
1437 if (hdrchkData(td->count))
1441 data = grabData(td->type, td->data, td->count, &length);
1442 if (data == NULL || length <= 0)
1445 /* Allocate more index space if necessary */
1446 if (h->indexUsed == h->indexAlloced) {
1447 h->indexAlloced += INDEX_MALLOC_SIZE;
1448 h->index = xrealloc(h->index, h->indexAlloced * sizeof(*h->index));
1451 /* Fill in the index */
1452 entry = h->index + h->indexUsed;
1453 entry->info.tag = td->tag;
1454 entry->info.type = td->type;
1455 entry->info.count = td->count;
1456 entry->info.offset = 0;
1458 entry->length = length;
1460 if (h->indexUsed > 0 && td->tag < h->index[h->indexUsed-1].info.tag)
1461 h->flags &= ~HEADERFLAG_SORTED;
1467 static int intAppendEntry(Header h, rpmtd td)
1472 if (td->type == RPM_STRING_TYPE || td->type == RPM_I18NSTRING_TYPE) {
1473 /* we can't do this */
1477 /* Find the tag entry in the header. */
1478 entry = findEntry(h, td->tag, td->type);
1482 length = dataLength(td->type, td->data, td->count, 0, NULL);
1486 if (ENTRY_IN_REGION(entry)) {
1487 char * t = xmalloc(entry->length + length);
1488 memcpy(t, entry->data, entry->length);
1490 entry->info.offset = 0;
1492 entry->data = xrealloc(entry->data, entry->length + length);
1494 copyData(td->type, ((char *) entry->data) + entry->length,
1495 td->data, td->count, length);
1497 entry->length += length;
1499 entry->info.count += td->count;
1504 int headerPut(Header h, rpmtd td, headerPutFlags flags)
1509 if (flags & HEADERPUT_APPEND) {
1510 rc = findEntry(h, td->tag, td->type) ?
1511 intAppendEntry(h, td) :
1514 rc = intAddEntry(h, td);
1520 * Sanity check data types against tag table before putting. Assume
1521 * append on all array-types.
1523 static int headerPutType(Header h, rpmTag tag, rpmTagType reqtype,
1524 rpm_constdata_t data, rpm_count_t size)
1527 rpmTagType type = rpmTagGetType(tag);
1528 headerPutFlags flags = HEADERPUT_APPEND;
1531 /* Basic sanity checks: type must match and there must be data to put */
1532 if ((type & RPM_MASK_TYPE) != reqtype
1533 || size < 1 || data == NULL || h == NULL) {
1538 * Non-array types can't be appended to. Binary types use size
1539 * for data length, for other non-array types size must be 1.
1541 if ((type & RPM_MASK_RETURN_TYPE) != RPM_ARRAY_RETURN_TYPE) {
1542 flags = HEADERPUT_DEFAULT;
1543 if ((type & RPM_MASK_TYPE) != RPM_BIN_TYPE && size != 1) {
1551 td.type = type & RPM_MASK_TYPE;
1552 td.data = (void *) data;
1555 valid = headerPut(h, &td, flags);
1561 int headerPutString(Header h, rpmTag tag, const char *val)
1563 rpmTagType type = rpmTagGetType(tag) & RPM_MASK_TYPE;
1564 const void *sptr = NULL;
1566 /* string arrays expect char **, arrange that */
1567 if (type == RPM_STRING_ARRAY_TYPE || type == RPM_I18NSTRING_TYPE) {
1569 } else if (type == RPM_STRING_TYPE) {
1575 return headerPutType(h, tag, type, sptr, 1);
1578 int headerPutStringArray(Header h, rpmTag tag, const char **array, rpm_count_t size)
1580 return headerPutType(h, tag, RPM_STRING_ARRAY_TYPE, array, size);
1583 int headerPutChar(Header h, rpmTag tag, char *val, rpm_count_t size)
1585 return headerPutType(h, tag, RPM_CHAR_TYPE, val, size);
1588 int headerPutUint8(Header h, rpmTag tag, uint8_t *val, rpm_count_t size)
1590 return headerPutType(h, tag, RPM_INT8_TYPE, val, size);
1593 int headerPutUint16(Header h, rpmTag tag, uint16_t *val, rpm_count_t size)
1595 return headerPutType(h, tag, RPM_INT16_TYPE, val, size);
1598 int headerPutUint32(Header h, rpmTag tag, uint32_t *val, rpm_count_t size)
1600 return headerPutType(h, tag, RPM_INT32_TYPE, val, size);
1603 int headerPutUint64(Header h, rpmTag tag, uint64_t *val, rpm_count_t size)
1605 return headerPutType(h, tag, RPM_INT64_TYPE, val, size);
1608 int headerPutBin(Header h, rpmTag tag, uint8_t *val, rpm_count_t size)
1610 return headerPutType(h, tag, RPM_BIN_TYPE, val, size);
1613 int headerAddI18NString(Header h, rpmTag tag, const char * string,
1616 indexEntry table, entry;
1617 const char ** strArray;
1620 rpm_count_t i, langNum;
1623 table = findEntry(h, HEADER_I18NTABLE, RPM_STRING_ARRAY_TYPE);
1624 entry = findEntry(h, tag, RPM_I18NSTRING_TYPE);
1626 if (!table && entry)
1627 return 0; /* this shouldn't ever happen!! */
1629 if (!table && !entry) {
1630 const char * charArray[2];
1631 rpm_count_t count = 0;
1633 if (!lang || (lang[0] == 'C' && lang[1] == '\0')) {
1634 charArray[count++] = "C";
1636 charArray[count++] = "C";
1637 charArray[count++] = lang;
1641 td.tag = HEADER_I18NTABLE;
1642 td.type = RPM_STRING_ARRAY_TYPE;
1643 td.data = (void *) charArray;
1645 if (!headerPut(h, &td, HEADERPUT_DEFAULT))
1647 table = findEntry(h, HEADER_I18NTABLE, RPM_STRING_ARRAY_TYPE);
1652 if (!lang) lang = "C";
1654 { const char * l = table->data;
1655 for (langNum = 0; langNum < table->info.count; langNum++) {
1656 if (rstreq(l, lang)) break;
1661 if (langNum >= table->info.count) {
1662 length = strlen(lang) + 1;
1663 if (ENTRY_IN_REGION(table)) {
1664 char * t = xmalloc(table->length + length);
1665 memcpy(t, table->data, table->length);
1667 table->info.offset = 0;
1669 table->data = xrealloc(table->data, table->length + length);
1670 memmove(((char *)table->data) + table->length, lang, length);
1671 table->length += length;
1672 table->info.count++;
1678 strArray = xmalloc(sizeof(*strArray) * (langNum + 1));
1679 for (i = 0; i < langNum; i++)
1681 strArray[langNum] = string;
1685 td.type = RPM_I18NSTRING_TYPE;
1687 td.count = langNum + 1;
1688 rc = headerPut(h, &td, HEADERPUT_DEFAULT);
1691 } else if (langNum >= entry->info.count) {
1692 ghosts = langNum - entry->info.count;
1694 length = strlen(string) + 1 + ghosts;
1695 if (ENTRY_IN_REGION(entry)) {
1696 char * t = xmalloc(entry->length + length);
1697 memcpy(t, entry->data, entry->length);
1699 entry->info.offset = 0;
1701 entry->data = xrealloc(entry->data, entry->length + length);
1703 memset(((char *)entry->data) + entry->length, '\0', ghosts);
1704 memmove(((char *)entry->data) + entry->length + ghosts, string, strlen(string)+1);
1706 entry->length += length;
1707 entry->info.count = langNum + 1;
1709 char *b, *be, *e, *ee, *t;
1712 /* Set beginning/end pointers to previous data */
1713 b = be = e = ee = entry->data;
1714 for (i = 0; i < table->info.count; i++) {
1717 ee += strlen(ee) + 1;
1722 /* Get storage for new buffer */
1724 sn = strlen(string) + 1;
1726 length = bn + sn + en;
1727 t = buf = xmalloc(length);
1729 /* Copy values into new storage */
1732 memcpy(t, string, sn);
1737 /* Replace i18N string array */
1738 entry->length -= strlen(be) + 1;
1739 entry->length += sn;
1741 if (ENTRY_IN_REGION(entry)) {
1742 entry->info.offset = 0;
1744 entry->data = _free(entry->data);
1751 int headerMod(Header h, rpmtd td)
1758 /* First find the tag */
1759 entry = findEntry(h, td->tag, td->type);
1764 data = grabData(td->type, td->data, td->count, &length);
1765 if (data == NULL || length <= 0)
1768 /* make sure entry points to the first occurence of this tag */
1769 while (entry > h->index && (entry - 1)->info.tag == td->tag)
1772 /* free after we've grabbed the new data in case the two are intertwined;
1773 that's a bad idea but at least we won't break */
1774 oldData = entry->data;
1776 entry->info.count = td->count;
1777 entry->info.type = td->type;
1779 entry->length = length;
1781 if (ENTRY_IN_REGION(entry)) {
1782 entry->info.offset = 0;
1784 oldData = _free(oldData);
1790 * Header tag iterator data structure.
1792 struct headerIterator_s {
1793 Header h; /*!< Header being iterated. */
1794 int next_index; /*!< Next tag index. */
1797 HeaderIterator headerFreeIterator(HeaderIterator hi)
1800 hi->h = headerFree(hi->h);
1806 HeaderIterator headerInitIterator(Header h)
1808 HeaderIterator hi = xmalloc(sizeof(*hi));
1812 hi->h = headerLink(h);
1817 int headerNext(HeaderIterator hi, rpmtd td)
1821 indexEntry entry = NULL;
1827 for (slot = hi->next_index; slot < h->indexUsed; slot++) {
1828 entry = h->index + slot;
1829 if (!ENTRY_IS_REGION(entry))
1832 hi->next_index = slot;
1833 if (entry == NULL || slot >= h->indexUsed)
1838 td->tag = entry->info.tag;
1840 rc = copyTdEntry(entry, td, HEADERGET_DEFAULT);
1842 /* XXX 1 on success */
1843 return ((rc == 1) ? 1 : 0);
1847 * Duplicate a header.
1849 * @return new header instance
1851 Header headerCopy(Header h)
1853 Header nh = headerNew();
1857 hi = headerInitIterator(h);
1858 while (headerNext(hi, &td)) {
1859 if (rpmtdCount(&td) > 0) {
1860 (void) headerPut(nh, &td, HEADERPUT_DEFAULT);
1864 hi = headerFreeIterator(hi);
1866 return headerReload(nh, HEADER_IMAGE);
1869 void headerCopyTags(Header headerFrom, Header headerTo,
1870 const rpmTag * tagstocopy)
1875 if (headerFrom == headerTo)
1878 for (p = tagstocopy; *p != 0; p++) {
1879 if (headerIsEntry(headerTo, *p))
1881 if (!headerGet(headerFrom, *p, &td, HEADERGET_MINMEM))
1883 (void) headerPut(headerTo, &td, HEADERPUT_DEFAULT);
1888 unsigned int headerGetInstance(Header h)
1890 return h ? h->instance : 0;
1893 void headerSetInstance(Header h, unsigned int instance)
1895 h->instance = instance;
1898 char * headerGetAsString(Header h, rpmTag tag)
1903 if (headerGet(h, tag, &td, HEADERGET_EXT)) {
1904 if (rpmtdCount(&td) == 1) {
1905 res = rpmtdFormat(&td, RPMTD_FORMAT_STRING, NULL);
1912 const char * headerGetString(Header h, rpmTag tag)
1914 const char *res = NULL;
1917 if (headerGet(h, tag, &td, HEADERGET_MINMEM)) {
1918 if (rpmtdCount(&td) == 1) {
1919 res = rpmtdGetString(&td);
1926 uint64_t headerGetNumber(Header h, rpmTag tag)
1931 if (headerGet(h, tag, &td, HEADERGET_EXT)) {
1932 if (rpmtdCount(&td) == 1) {
1933 res = rpmtdGetNumber(&td);