274 lines
7.2 KiB
C
274 lines
7.2 KiB
C
/** \ingroup header
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* \file lib/package.c
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*/
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#include "system.h"
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#include <netinet/in.h>
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#include <rpmlib.h>
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#include "misc.h"
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#include "rpmlead.h"
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#include "signature.h"
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#include "debug.h"
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#define alloca_strdup(_s) strcpy(alloca(strlen(_s)+1), (_s))
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/*@access Header@*/ /* XXX compared with NULL */
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void headerMergeLegacySigs(Header h, const Header sig)
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{
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HFD_t hfd = (HFD_t) headerFreeData;
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HAE_t hae = (HAE_t) headerAddEntry;
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HeaderIterator hi;
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int_32 tag, type, count;
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const void * ptr;
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/*@-mods@*/ /* FIX: undocumented modification of sig */
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for (hi = headerInitIterator(sig);
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/*@=mods@*/
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headerNextIterator(hi, &tag, &type, &ptr, &count);
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ptr = hfd(ptr, type))
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{
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switch (tag) {
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case RPMSIGTAG_SIZE:
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tag = RPMTAG_SIGSIZE;
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/*@switchbreak@*/ break;
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case RPMSIGTAG_LEMD5_1:
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tag = RPMTAG_SIGLEMD5_1;
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/*@switchbreak@*/ break;
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case RPMSIGTAG_PGP:
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tag = RPMTAG_SIGPGP;
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/*@switchbreak@*/ break;
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case RPMSIGTAG_LEMD5_2:
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tag = RPMTAG_SIGLEMD5_2;
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/*@switchbreak@*/ break;
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case RPMSIGTAG_MD5:
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tag = RPMTAG_SIGMD5;
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/*@switchbreak@*/ break;
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case RPMSIGTAG_GPG:
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tag = RPMTAG_SIGGPG;
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/*@switchbreak@*/ break;
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case RPMSIGTAG_PGP5:
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tag = RPMTAG_SIGPGP5;
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/*@switchbreak@*/ break;
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default:
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if (!(tag >= HEADER_SIGBASE && tag < HEADER_TAGBASE))
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continue;
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/*@switchbreak@*/ break;
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}
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if (ptr == NULL) continue; /* XXX can't happen */
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if (!headerIsEntry(h, tag))
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(void) hae(h, tag, type, ptr, count);
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}
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hi = headerFreeIterator(hi);
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}
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Header headerRegenSigHeader(const Header h)
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{
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HFD_t hfd = (HFD_t) headerFreeData;
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Header sig = rpmNewSignature();
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HeaderIterator hi;
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int_32 tag, stag, type, count;
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const void * ptr;
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/*@-mods@*/ /* FIX: undocumented modification of h */
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for (hi = headerInitIterator(h);
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/*@=mods@*/
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headerNextIterator(hi, &tag, &type, &ptr, &count);
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ptr = hfd(ptr, type))
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{
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switch (tag) {
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case RPMTAG_SIGSIZE:
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stag = RPMSIGTAG_SIZE;
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/*@switchbreak@*/ break;
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case RPMTAG_SIGLEMD5_1:
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stag = RPMSIGTAG_LEMD5_1;
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/*@switchbreak@*/ break;
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case RPMTAG_SIGPGP:
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stag = RPMSIGTAG_PGP;
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/*@switchbreak@*/ break;
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case RPMTAG_SIGLEMD5_2:
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stag = RPMSIGTAG_LEMD5_2;
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/*@switchbreak@*/ break;
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case RPMTAG_SIGMD5:
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stag = RPMSIGTAG_MD5;
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/*@switchbreak@*/ break;
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case RPMTAG_SIGGPG:
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stag = RPMSIGTAG_GPG;
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/*@switchbreak@*/ break;
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case RPMTAG_SIGPGP5:
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stag = RPMSIGTAG_PGP5;
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/*@switchbreak@*/ break;
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default:
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if (!(tag >= HEADER_SIGBASE && tag < HEADER_TAGBASE))
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continue;
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stag = tag;
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/*@switchbreak@*/ break;
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}
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if (ptr == NULL) continue; /* XXX can't happen */
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if (!headerIsEntry(sig, stag))
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(void) headerAddEntry(sig, stag, type, ptr, count);
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}
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hi = headerFreeIterator(hi);
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return sig;
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}
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/**
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* Retrieve package components from file handle.
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* @param fd file handle
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* @param leadPtr address of lead (or NULL)
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* @param sigs address of signatures (or NULL)
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* @param hdrPtr address of header (or NULL)
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* @return rpmRC return code
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*/
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static rpmRC readPackageHeaders(FD_t fd,
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/*@null@*/ /*@out@*/ struct rpmlead * leadPtr,
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/*@null@*/ /*@out@*/ Header * sigs,
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/*@null@*/ /*@out@*/ Header * hdrPtr)
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/*@globals fileSystem@*/
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/*@modifies fd, *leadPtr, *sigs, *hdrPtr, fileSystem @*/
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{
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Header hdrBlock;
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struct rpmlead leadBlock;
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Header * hdr = NULL;
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struct rpmlead * lead;
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char * defaultPrefix;
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struct stat sb;
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rpmRC rc;
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hdr = hdrPtr ? hdrPtr : &hdrBlock;
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lead = leadPtr ? leadPtr : &leadBlock;
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memset(&sb, 0, sizeof(sb));
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(void) fstat(Fileno(fd), &sb);
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/* if fd points to a socket, pipe, etc, sb.st_size is *always* zero */
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if (S_ISREG(sb.st_mode) && sb.st_size < sizeof(*lead)) return 1;
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if (readLead(fd, lead))
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return RPMRC_FAIL;
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if (lead->magic[0] != RPMLEAD_MAGIC0 || lead->magic[1] != RPMLEAD_MAGIC1 ||
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lead->magic[2] != RPMLEAD_MAGIC2 || lead->magic[3] != RPMLEAD_MAGIC3) {
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return RPMRC_BADMAGIC;
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}
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switch (lead->major) {
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case 1:
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rpmError(RPMERR_NEWPACKAGE,
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_("packaging version 1 is not supported by this version of RPM\n"));
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return RPMRC_FAIL;
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/*@notreached@*/ break;
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case 2:
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case 3:
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case 4:
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rc = rpmReadSignature(fd, sigs, lead->signature_type);
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if (rc == RPMRC_FAIL)
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return rc;
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*hdr = headerRead(fd, (lead->major >= 3)
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? HEADER_MAGIC_YES : HEADER_MAGIC_NO);
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if (*hdr == NULL) {
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if (sigs != NULL)
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*sigs = rpmFreeSignature(*sigs);
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return RPMRC_FAIL;
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}
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/*
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* We don't use these entries (and rpm >= 2 never has) and they are
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* pretty misleading. Let's just get rid of them so they don't confuse
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* anyone.
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*/
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if (headerIsEntry(*hdr, RPMTAG_FILEUSERNAME))
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(void) headerRemoveEntry(*hdr, RPMTAG_FILEUIDS);
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if (headerIsEntry(*hdr, RPMTAG_FILEGROUPNAME))
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(void) headerRemoveEntry(*hdr, RPMTAG_FILEGIDS);
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/*
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* We switched the way we do relocateable packages. We fix some of
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* it up here, though the install code still has to be a bit
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* careful. This fixup makes queries give the new values though,
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* which is quite handy.
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*/
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/*@-branchstate@*/
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if (headerGetEntry(*hdr, RPMTAG_DEFAULTPREFIX, NULL,
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(void **) &defaultPrefix, NULL))
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{
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defaultPrefix =
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stripTrailingChar(alloca_strdup(defaultPrefix), '/');
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(void) headerAddEntry(*hdr, RPMTAG_PREFIXES, RPM_STRING_ARRAY_TYPE,
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&defaultPrefix, 1);
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}
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/*@=branchstate@*/
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/*
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* The file list was moved to a more compressed format which not
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* only saves memory (nice), but gives fingerprinting a nice, fat
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* speed boost (very nice). Go ahead and convert old headers to
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* the new style (this is a noop for new headers).
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*/
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if (lead->major < 4)
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compressFilelist(*hdr);
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/* XXX binary rpms always have RPMTAG_SOURCERPM, source rpms do not */
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if (lead->type == RPMLEAD_SOURCE) {
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int_32 one = 1;
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if (!headerIsEntry(*hdr, RPMTAG_SOURCEPACKAGE))
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(void)headerAddEntry(*hdr, RPMTAG_SOURCEPACKAGE, RPM_INT32_TYPE,
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&one, 1);
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} else if (lead->major < 4) {
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/* Retrofit "Provide: name = EVR" for binary packages. */
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providePackageNVR(*hdr);
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}
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break;
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default:
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rpmError(RPMERR_NEWPACKAGE, _("only packaging with major numbers <= 4 "
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"is supported by this version of RPM\n"));
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return RPMRC_FAIL;
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/*@notreached@*/ break;
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}
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if (hdrPtr == NULL)
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*hdr = headerFree(*hdr);
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return RPMRC_OK;
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}
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rpmRC rpmReadPackageInfo(FD_t fd, Header * sigp, Header * hdrp)
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{
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rpmRC rc = readPackageHeaders(fd, NULL, sigp, hdrp);
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if (rc != RPMRC_OK)
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return rc;
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if (hdrp == NULL || sigp == NULL)
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return rc;
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if (*hdrp && *sigp)
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headerMergeLegacySigs(*hdrp, *sigp);
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return rc;
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}
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rpmRC rpmReadPackageHeader(FD_t fd, Header * hdrp, int * isSource, int * major,
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int * minor)
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{
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struct rpmlead lead;
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Header sig = NULL;
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rpmRC rc = readPackageHeaders(fd, &lead, &sig, hdrp);
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if (rc != RPMRC_OK)
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goto exit;
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if (hdrp && *hdrp && sig) {
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headerMergeLegacySigs(*hdrp, sig);
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sig = rpmFreeSignature(sig);
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}
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if (isSource) *isSource = lead.type == RPMLEAD_SOURCE;
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/*@-mods@*/ /* FIX: undocumented modification */
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if (major) *major = lead.major;
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if (minor) *minor = lead.minor;
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/*@=mods@*/
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exit:
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return rc;
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}
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