static int
nextchunk(struct solv_zchunk *zck, unsigned int streamid)
{
unsigned char *p = zck->chunks;
unsigned char *chunk_chk_ptr;
unsigned int sid, chunk_len, uncompressed_len;
unsigned char *cbuf;
/* free old buffer */
zck->buf = solv_free(zck->buf);
zck->buf_avail = 0;
zck->buf_used = 0;
for (;;)
{
if (zck->nchunks == 0)
{
zck->chunks = p;
return 1; /* EOF reached */
}
if (p >= zck->hdr_end)
return 0;
sid = streamid ? 1 : 0;
/* check if this is the correct stream */
if ((zck->flags & 1) != 0 && (p = getuint(p, zck->hdr_end, &sid)) == 0)
return 0;
chunk_chk_ptr = p; /* remember for verification */
p += zck->chunk_chk_len;
if (p >= zck->hdr_end)
return 0;
if ((p = getuint(p, zck->hdr_end, &chunk_len)) == 0)
return 0;
if ((p = getuint(p, zck->hdr_end, &uncompressed_len)) == 0)
return 0;
zck->nchunks--;
if (sid == streamid)
break;
/* skip the chunk, but the dict chunk must come first */
if (streamid == 0 || skip_bytes(zck->fp, chunk_len, zck->data_chk) == 0)
return 0;
}
zck->chunks = p;
/* ok, read the compressed chunk */
if (!chunk_len)
return uncompressed_len ? 0 : 1;
cbuf = solv_malloc(chunk_len);
if (fread(cbuf, chunk_len, 1, zck->fp) != 1)
{
solv_free(cbuf);
return 0;
}
if (zck->data_chk)
solv_chksum_add(zck->data_chk, cbuf, chunk_len);
/* verify the chunk checksum */
if (zck->chunk_chk_id)
{
Chksum *chk = solv_chksum_create(zck->chunk_chk_id);
if (!chk)
{
solv_free(cbuf);
return 0;
}
solv_chksum_add(chk, cbuf, chunk_len);
if (memcmp(solv_chksum_get(chk, 0), chunk_chk_ptr, zck->chunk_chk_len) != 0)
{
solv_chksum_free(chk, 0);
solv_free(cbuf);
return 0;
}
solv_chksum_free(chk, 0);
}
/* uncompress */
if (zck->comp == 0)
{
/* not compressed */
if (chunk_len != uncompressed_len)
{
solv_free(cbuf);
return 0;
}
zck->buf = cbuf;
zck->buf_avail = uncompressed_len;
return 1;
}
if (zck->comp == 2)
{
/* zstd compressed */
size_t r;
zck->buf = solv_malloc(uncompressed_len + 1); /* +1 so we can detect too large frames */
if (zck->ddict)
r = ZSTD_decompress_usingDDict(zck->dctx, zck->buf, uncompressed_len + 1, cbuf, chunk_len, zck->ddict);
else
r = ZSTD_decompressDCtx(zck->dctx, zck->buf, uncompressed_len + 1, cbuf, chunk_len);
solv_free(cbuf);
if (r != uncompressed_len)
return 0;
zck->buf_avail = uncompressed_len;
return 1;
}
solv_free(cbuf);
return 0;
}
Id
repo_add_arch_pkg(Repo *repo, const char *fn, int flags)
{
Pool *pool = repo->pool;
Repodata *data;
FILE *fp;
struct tarhead th;
char line[4096];
int ignoreline;
Solvable *s;
int l, fd;
struct stat stb;
void *pkgidhandle = 0;
data = repo_add_repodata(repo, flags);
if ((fd = open(flags & REPO_USE_ROOTDIR ? pool_prepend_rootdir_tmp(pool, fn) : fn, O_RDONLY, 0)) < 0)
{
pool_error(pool, -1, "%s: %s", fn, strerror(errno));
return 0;
}
if (fstat(fd, &stb))
{
pool_error(pool, -1, "%s: fstat: %s", fn, strerror(errno));
close(fd);
return 0;
}
if (!(fp = solv_xfopen_fd(fn, fd, "r")))
{
pool_error(pool, -1, "%s: fdopen failed", fn);
close(fd);
return 0;
}
s = 0;
inittarhead(&th, fp);
while (gettarhead(&th) > 0)
{
if (th.type != 1 || strcmp(th.path, ".PKGINFO") != 0)
{
skipentry(&th);
continue;
}
ignoreline = 0;
s = pool_id2solvable(pool, repo_add_solvable(repo));
if (flags & ARCH_ADD_WITH_PKGID)
pkgidhandle = solv_chksum_create(REPOKEY_TYPE_MD5);
while (getsentry(&th, line, sizeof(line)))
{
l = strlen(line);
if (l == 0)
continue;
if (pkgidhandle)
solv_chksum_add(pkgidhandle, line, l);
if (line[l - 1] != '\n')
{
ignoreline = 1;
continue;
}
if (ignoreline)
{
ignoreline = 0;
continue;
}
line[--l] = 0;
if (l == 0 || line[0] == '#')
continue;
if (!strncmp(line, "pkgname = ", 10))
s->name = pool_str2id(pool, line + 10, 1);
else if (!strncmp(line, "pkgver = ", 9))
s->evr = pool_str2id(pool, line + 9, 1);
else if (!strncmp(line, "pkgdesc = ", 10))
{
repodata_set_str(data, s - pool->solvables, SOLVABLE_SUMMARY, line + 10);
repodata_set_str(data, s - pool->solvables, SOLVABLE_DESCRIPTION, line + 10);
}
else if (!strncmp(line, "url = ", 6))
repodata_set_str(data, s - pool->solvables, SOLVABLE_URL, line + 6);
else if (!strncmp(line, "builddate = ", 12))
repodata_set_num(data, s - pool->solvables, SOLVABLE_BUILDTIME, strtoull(line + 12, 0, 10));
else if (!strncmp(line, "packager = ", 11))
repodata_set_poolstr(data, s - pool->solvables, SOLVABLE_PACKAGER, line + 11);
else if (!strncmp(line, "size = ", 7))
repodata_set_num(data, s - pool->solvables, SOLVABLE_INSTALLSIZE, strtoull(line + 7, 0, 10));
else if (!strncmp(line, "arch = ", 7))
s->arch = pool_str2id(pool, line + 7, 1);
else if (!strncmp(line, "license = ", 10))
repodata_set_poolstr(data, s - pool->solvables, SOLVABLE_LICENSE, line + 10);
else if (!strncmp(line, "replaces = ", 11))
s->obsoletes = adddep(repo, s->obsoletes, line + 11);
else if (!strncmp(line, "group = ", 8))
repodata_set_poolstr(data, s - pool->solvables, SOLVABLE_GROUP, line + 8);
else if (!strncmp(line, "depend = ", 9))
s->requires = adddep(repo, s->requires, line + 9);
else if (!strncmp(line, "optdepend = ", 12))
{
char *p = strchr(line, ':');
if (p)
*p = 0;
s->suggests = adddep(repo, s->suggests, line + 12);
}
else if (!strncmp(line, "conflict = ", 11))
s->conflicts = adddep(repo, s->conflicts, line + 11);
else if (!strncmp(line, "provides = ", 11))
s->provides = adddep(repo, s->provides, line + 11);
}
break;
}
freetarhead(&th);
fclose(fp);
if (!s)
{
pool_error(pool, -1, "%s: not an arch package", fn);
if (pkgidhandle)
solv_chksum_free(pkgidhandle, 0);
return 0;
}
if (s && !s->name)
{
pool_error(pool, -1, "%s: package has no name", fn);
repo_free_solvable(repo, s - pool->solvables, 1);
s = 0;
}
if (s)
{
if (!s->arch)
s->arch = ARCH_ANY;
if (!s->evr)
s->evr = ID_EMPTY;
s->provides = repo_addid_dep(repo, s->provides, pool_rel2id(pool, s->name, s->evr, REL_EQ, 1), 0);
if (!(flags & REPO_NO_LOCATION))
repodata_set_location(data, s - pool->solvables, 0, 0, fn);
if (S_ISREG(stb.st_mode))
repodata_set_num(data, s - pool->solvables, SOLVABLE_DOWNLOADSIZE, (unsigned long long)stb.st_size);
if (pkgidhandle)
{
unsigned char pkgid[16];
solv_chksum_free(pkgidhandle, pkgid);
repodata_set_bin_checksum(data, s - pool->solvables, SOLVABLE_PKGID, REPOKEY_TYPE_MD5, pkgid);
pkgidhandle = 0;
}
}
if (pkgidhandle)
solv_chksum_free(pkgidhandle, 0);
if (!(flags & REPO_NO_INTERNALIZE))
repodata_internalize(data);
return s ? s - pool->solvables : 0;
}
