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#include "system.h"
#ifdef __LCLINT__
#define ntohl(_x) (_x)
#define ntohs(_x) (_x)
#define htonl(_x) (_x)
#define htons(_x) (_x)
#else
#include <netinet/in.h>
#endif /* __LCLINT__ */
#include <rpmlib.h>
#include "misc.h"
#include "rpmlead.h"
#include "signature.h"
/**
* Retrieve package components from file handle.
* @param fd file handle
* @param leadPtr address of lead (or NULL)
* @param sigs address of signatures (or NULL)
* @param hdrPtr address of header (or NULL)
* @return 0 on success, 1 on bad magic, 2 on error
*/
static int readPackageHeaders(FD_t fd, /*@out@*/struct rpmlead * leadPtr,
/*@out@*/Header * sigs, /*@out@*/Header * hdrPtr)
/*@modifies *leadPtr, *sigs, *hdrPtr @*/
{
Header hdrBlock;
struct rpmlead leadBlock;
Header * hdr = NULL;
struct rpmlead * lead;
char * defaultPrefix;
struct stat sb;
int_32 true = 1;
hdr = hdrPtr ? hdrPtr : &hdrBlock;
lead = leadPtr ? leadPtr : &leadBlock;
fstat(Fileno(fd), &sb);
/* if fd points to a socket, pipe, etc, sb.st_size is *always* zero */
if (S_ISREG(sb.st_mode) && sb.st_size < sizeof(*lead)) return 1;
if (readLead(fd, lead)) {
return 2;
}
if (lead->magic[0] != RPMLEAD_MAGIC0 || lead->magic[1] != RPMLEAD_MAGIC1 ||
lead->magic[2] != RPMLEAD_MAGIC2 || lead->magic[3] != RPMLEAD_MAGIC3) {
return 1;
}
switch (lead->major) {
case 1:
rpmError(RPMERR_NEWPACKAGE, _("packaging version 1 is not"
" supported by this version of RPM"));
return 2;
/*@notreached@*/ break;
case 2:
case 3:
case 4:
if (rpmReadSignature(fd, sigs, lead->signature_type)) {
return 2;
}
*hdr = headerRead(fd, (lead->major >= 3) ?
HEADER_MAGIC_YES : HEADER_MAGIC_NO);
if (*hdr == NULL) {
if (sigs != NULL) {
headerFree(*sigs);
}
return 2;
}
/* We don't use these entries (and rpm >= 2 never have) and they are
pretty misleading. Let's just get rid of them so they don't confuse
anyone. */
if (headerIsEntry(*hdr, RPMTAG_FILEUSERNAME))
headerRemoveEntry(*hdr, RPMTAG_FILEUIDS);
if (headerIsEntry(*hdr, RPMTAG_FILEGROUPNAME))
headerRemoveEntry(*hdr, RPMTAG_FILEGIDS);
/* We switched the way we do relocateable packages. We fix some of
it up here, though the install code still has to be a bit
careful. This fixup makes queries give the new values though,
which is quite handy. */
if (headerGetEntry(*hdr, RPMTAG_DEFAULTPREFIX, NULL,
(void **) &defaultPrefix, NULL)) {
defaultPrefix = strcpy(alloca(strlen(defaultPrefix) + 1),
defaultPrefix);
stripTrailingSlashes(defaultPrefix);
headerAddEntry(*hdr, RPMTAG_PREFIXES, RPM_STRING_ARRAY_TYPE,
&defaultPrefix, 1);
}
/* The file list was moved to a more compressed format which not
only saves memory (nice), but gives fingerprinting a nice, fat
speed boost (very nice). Go ahead and convert old headers to
the new style (this is a noop for new headers) */
if (lead->major < 4) {
compressFilelist(*hdr);
}
/* XXX binary rpms always have RPMTAG_SOURCERPM, source rpms do not */
if (lead->type == RPMLEAD_SOURCE) {
if (!headerIsEntry(*hdr, RPMTAG_SOURCEPACKAGE))
headerAddEntry(*hdr, RPMTAG_SOURCEPACKAGE, RPM_INT32_TYPE,
&true, 1);
} else if (lead->major < 4) {
/* Retrofit "Provide: name = EVR" for binary packages. */
providePackageNVR(*hdr);
}
break;
default:
rpmError(RPMERR_NEWPACKAGE, _("only packaging with major numbers <= 4 "
"is supported by this version of RPM"));
return 2;
/*@notreached@*/ break;
}
if (hdrPtr == NULL) {
headerFree(*hdr);
}
return 0;
}
int rpmReadPackageInfo(FD_t fd, Header * signatures, Header * hdr)
{
return readPackageHeaders(fd, NULL, signatures, hdr);
}
int rpmReadPackageHeader(FD_t fd, Header * hdr, int * isSource, int * major,
int * minor)
{
int rc;
struct rpmlead lead;
rc = readPackageHeaders(fd, &lead, NULL, hdr);
if (rc) return rc;
if (isSource) *isSource = lead.type == RPMLEAD_SOURCE;
if (major) *major = lead.major;
if (minor) *minor = lead.minor;
return 0;
}
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