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#if defined(HAVE_CONFIG_H)
#include "system.h"
const char *__progname;
#else
#include <sys/types.h>
#include <fcntl.h>
#include <string.h>
#endif
#include <rpmlib.h>
#include <rpmdb.h>
#include <rpmio.h>
#include "rpmmacro.h"
#include <rpmdb/legacy.h>
#define FA_MAGIC 0x02050920
struct faFileHeader{
unsigned int magic;
unsigned int firstFree;
};
struct faHeader {
unsigned int size;
unsigned int freeNext; /* offset of the next free block, 0 if none */
unsigned int freePrev;
unsigned int isFree;
/* note that the u16's appear last for alignment/space reasons */
};
static int fadFileSize;
static ssize_t Pread(FD_t fd, void * buf, size_t count, off_t offset) {
if (Fseek(fd, offset, SEEK_SET) < 0)
return -1;
return Fread(buf, sizeof(char), count, fd);
}
static FD_t fadOpen(const char * path)
{
struct faFileHeader newHdr;
FD_t fd;
struct stat stb;
fd = Fopen(path, "r.fdio");
if (!fd || Ferror(fd))
return NULL;
if (fstat(Fileno(fd), &stb)) {
Fclose(fd);
return NULL;
}
fadFileSize = stb.st_size;
/* is this file brand new? */
if (fadFileSize == 0) {
Fclose(fd);
return NULL;
}
if (Pread(fd, &newHdr, sizeof(newHdr), 0) != sizeof(newHdr)) {
Fclose(fd);
return NULL;
}
if (newHdr.magic != FA_MAGIC) {
Fclose(fd);
return NULL;
}
return fd ;
}
static int fadNextOffset(FD_t fd, unsigned int lastOffset)
{
struct faHeader header;
int offset;
offset = (lastOffset)
? (lastOffset - sizeof(header))
: sizeof(struct faFileHeader);
if (offset >= fadFileSize)
return 0;
if (Pread(fd, &header, sizeof(header), offset) != sizeof(header))
return 0;
if (!lastOffset && !header.isFree)
return (offset + sizeof(header));
do {
offset += header.size;
if (Pread(fd, &header, sizeof(header), offset) != sizeof(header))
return 0;
if (!header.isFree) break;
} while (offset < fadFileSize && header.isFree);
if (offset < fadFileSize) {
/* Sanity check this to make sure we're not going in loops */
offset += sizeof(header);
if (offset <= lastOffset) return -1;
return offset;
} else
return 0;
}
static int fadFirstOffset(FD_t fd)
{
return fadNextOffset(fd, 0);
}
static rpmdb db;
int
main(int argc, char *argv[])
{
FD_t fd;
int offset;
Header h;
const char *name;
const char *version;
const char *release;
if (argc != 2)
{
fprintf(stderr, "usage: %s <packages.rpm>\n", argv[0]);
exit(1);
}
if ((fd = fadOpen(argv[1])) == 0)
{
fprintf(stderr, "could not open %s\n", argv[1]);
exit(1);
}
rpmInitMacros(NULL, "/usr/lib/rpm/macros");
/* speed things up */
(void) rpmDefineMacro(NULL, "_rpmdb_rebuild %{nil}", -1);
if (rpmdbOpen("/", &db, O_RDWR, 0644)) {
fprintf(stderr, "could not open rpm database\n");
exit(1);
}
for (offset = fadFirstOffset(fd); offset; offset = fadNextOffset(fd, offset))
{
rpmdbMatchIterator mi;
/* have to use lseek instead of Fseek because headerRead
* uses low level IO
*/
if (lseek(Fileno(fd), (off_t)offset, SEEK_SET) == -1)
{
perror("lseek");
continue;
}
h = headerRead(fd, HEADER_MAGIC_NO);
if (!h)
continue;
compressFilelist(h);
providePackageNVR(h);
headerNVR(h, &name, &version, &release);
mi = rpmdbInitIterator(db, RPMTAG_NAME, name, 0);
rpmdbSetIteratorRE(mi, RPMTAG_VERSION, RPMMIRE_DEFAULT, version);
rpmdbSetIteratorRE(mi, RPMTAG_RELEASE, RPMMIRE_DEFAULT, release);
if (rpmdbNextIterator(mi))
{
printf("%s-%s-%s is already in database\n", name, version, release);
rpmdbFreeIterator(mi);
headerFree(h);
continue;
}
rpmdbFreeIterator(mi);
if (rpmdbAdd(db, -1, h, 0, 0))
{
fprintf(stderr, "could not add %s-%s-%s!\n", name, version, release);
}
headerFree(h);
}
Fclose(fd);
rpmdbClose(db);
return 0;
}
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