static struct zip_source* S_create_source_zip(lua_State* L, struct zip* ar) {
struct zip** other_ar = check_archive(L, 4);
int file_idx = luaL_checkint(L, 5);
int flags = lua_gettop(L) < 6 ? 0 : luaL_checkint(L, 6);
int start = lua_gettop(L) < 7 ? 0 : luaL_checkint(L, 7);
int len = lua_gettop(L) < 8 ? -1 : luaL_checkint(L, 8);
struct zip_source* src = NULL;
if ( ! *other_ar ) return;
lua_getfenv(L, 1);
lua_pushvalue(L, 4);
lua_rawget(L, -2);
if ( ! lua_isnil(L, -1) ) {
lua_pushliteral(L, "Circular reference of zip sources is not allowed");
lua_error(L);
}
lua_pop(L, 1);
/* We store a strong reference to prevent the "other" archive
* from getting prematurely gc'ed, we also have the other archive
* store a weak reference so the __gc metamethod will be called
* if the "other" archive is closed before we are closed.
*/
S_archive_add_ref(L, 0, 1, 4);
S_archive_add_ref(L, 1, 4, 1);
src = zip_source_zip(ar, *other_ar, file_idx-1, flags, start, len);
if ( NULL != src ) return src;
lua_pushstring(L, zip_strerror(ar));
lua_error(L);
}
static int
add_from_zip(int argc, char *argv[]) {
zip_uint64_t idx, start;
zip_int64_t len;
int err;
zip_source_t *zs;
/* add from another zip file */
idx = strtoull(argv[2], NULL, 10);
start = strtoull(argv[3], NULL, 10);
len = strtoll(argv[4], NULL, 10);
if ((z_in[z_in_count]=zip_open(argv[1], ZIP_CHECKCONS, &err)) == NULL) {
zip_error_t error;
zip_error_init_with_code(&error, err);
fprintf(stderr, "can't open zip archive '%s': %s\n", argv[1], zip_error_strerror(&error));
zip_error_fini(&error);
return -1;
}
if ((zs=zip_source_zip(za, z_in[z_in_count], idx, 0, start, len)) == NULL) {
fprintf(stderr, "error creating file source from '%s' index '%" PRIu64 "': %s\n", argv[1], idx, zip_strerror(za));
zip_close(z_in[z_in_count]);
return -1;
}
if (zip_add(za, argv[0], zs) == -1) {
fprintf(stderr, "can't add file '%s': %s\n", argv[0], zip_strerror(za));
zip_source_free(zs);
zip_close(z_in[z_in_count]);
return -1;
}
z_in_count++;
return 0;
}
static int
merge_zip(struct zip *za, const char *tname, const char *sname,
struct zip **zsp)
{
struct zip *zs;
struct zip_source *source;
int i, idx, err;
char errstr[1024];
const char *fname;
if ((zs=zip_open(sname, 0, &err)) == NULL) {
zip_error_to_str(errstr, sizeof(errstr), err, errno);
fprintf(stderr, "%s: cannot open zip archive `%s': %s\n",
prg, sname, errstr);
return -1;
}
for (i=0; i<zip_get_num_files(zs); i++) {
fname = zip_get_name(zs, i, 0);
if ((idx=zip_name_locate(za, fname, name_flags)) != -1) {
switch (confirm_replace(za, tname, idx, zs, sname, i)) {
case 0:
break;
case 1:
if ((source=zip_source_zip(za, zs, i, 0, 0, 0)) == NULL
|| zip_replace(za, idx, source) < 0) {
zip_source_free(source);
fprintf(stderr,
"%s: cannot replace `%s' in `%s': %s\n",
prg, fname, tname, zip_strerror(za));
return -1;
}
break;
case -1:
zip_close(zs);
return -1;
default:
fprintf(stderr, "%s: internal error: "
"unexpected return code from confirm (%d)\n",
prg, err);
zip_close(zs);
return -1;
}
}
else {
if ((source=zip_source_zip(za, zs, i, 0, 0, 0)) == NULL
|| zip_add(za, fname, source) < 0) {
zip_source_free(source);
fprintf(stderr,
"%s: cannot add `%s' to `%s': %s\n",
prg, fname, tname, zip_strerror(za));
zip_close(zs);
return -1;
}
}
}
*zsp = zs;
return 0;
}
ZIP_EXTERN int
zip_close(struct zip *za)
{
int survivors;
int i, j, error;
char *temp;
FILE *out;
mode_t mask;
struct zip_cdir *cd;
struct zip_dirent de;
struct filelist *filelist;
int reopen_on_error;
int new_torrentzip;
reopen_on_error = 0;
if (za == NULL)
return -1;
if (!_zip_changed(za, &survivors)) {
_zip_free(za);
return 0;
}
/* don't create zip files with no entries */
if (survivors == 0) {
if (za->zn && za->zp) {
if (remove(za->zn) != 0) {
_zip_error_set(&za->error, ZIP_ER_REMOVE, errno);
return -1;
}
}
_zip_free(za);
return 0;
}
if ((filelist=(struct filelist *)malloc(sizeof(filelist[0])*survivors))
== NULL)
return -1;
if ((cd=_zip_cdir_new(survivors, &za->error)) == NULL) {
free(filelist);
return -1;
}
for (i=0; i<survivors; i++)
_zip_dirent_init(&cd->entry[i]);
/* archive comment is special for torrentzip */
if (zip_get_archive_flag(za, ZIP_AFL_TORRENT, 0)) {
cd->comment = (char*)_zip_memdup((void*)(TORRENT_SIG "XXXXXXXX"),
TORRENT_SIG_LEN + TORRENT_CRC_LEN,
&za->error);
if (cd->comment == NULL) {
_zip_cdir_free(cd);
free(filelist);
return -1;
}
cd->comment_len = TORRENT_SIG_LEN + TORRENT_CRC_LEN;
}
else if (zip_get_archive_flag(za, ZIP_AFL_TORRENT, ZIP_FL_UNCHANGED) == 0) {
if (_zip_cdir_set_comment(cd, za) == -1) {
_zip_cdir_free(cd);
free(filelist);
return -1;
}
}
if ((temp=_zip_create_temp_output(za, &out)) == NULL) {
_zip_cdir_free(cd);
free(filelist);
return -1;
}
/* create list of files with index into original archive */
for (i=j=0; i<za->nentry; i++) {
if (za->entry[i].state == ZIP_ST_DELETED)
continue;
filelist[j].idx = i;
filelist[j].name = zip_get_name(za, i, 0);
j++;
}
survivors = j;
if (zip_get_archive_flag(za, ZIP_AFL_TORRENT, 0))
qsort(filelist, survivors, sizeof(filelist[0]),
_zip_torrentzip_cmp);
new_torrentzip = (zip_get_archive_flag(za, ZIP_AFL_TORRENT, 0) == 1
&& zip_get_archive_flag(za, ZIP_AFL_TORRENT,
ZIP_FL_UNCHANGED) == 0);
error = 0;
for (j=0; j<survivors; j++) {
i = filelist[j].idx;
/* create new local directory entry */
if (ZIP_ENTRY_DATA_CHANGED(za->entry+i) || new_torrentzip) {
_zip_dirent_init(&de);
if (zip_get_archive_flag(za, ZIP_AFL_TORRENT, 0))
_zip_dirent_torrent_normalize(&de);
/* use it as central directory entry */
memcpy(cd->entry+j, &de, sizeof(cd->entry[j]));
/* set/update file name */
if (za->entry[i].ch_filename == NULL) {
if (za->entry[i].state == ZIP_ST_ADDED) {
de.filename = strdup("-");
de.filename_len = 1;
cd->entry[j].filename = "-";
cd->entry[j].filename_len = 1;
}
else {
de.filename = strdup(za->cdir->entry[i].filename);
de.filename_len = strlen(de.filename);
cd->entry[j].filename = za->cdir->entry[i].filename;
cd->entry[j].filename_len = de.filename_len;
}
}
}
else {
/* copy existing directory entries */
if (fseeko(za->zp, za->cdir->entry[i].offset, SEEK_SET) != 0) {
_zip_error_set(&za->error, ZIP_ER_SEEK, errno);
error = 1;
break;
}
if (_zip_dirent_read(&de, za->zp, NULL, NULL, 1,
&za->error) != 0) {
error = 1;
break;
}
memcpy(cd->entry+j, za->cdir->entry+i, sizeof(cd->entry[j]));
if (de.bitflags & ZIP_GPBF_DATA_DESCRIPTOR) {
de.crc = za->cdir->entry[i].crc;
de.comp_size = za->cdir->entry[i].comp_size;
de.uncomp_size = za->cdir->entry[i].uncomp_size;
de.bitflags &= ~ZIP_GPBF_DATA_DESCRIPTOR;
cd->entry[j].bitflags &= ~ZIP_GPBF_DATA_DESCRIPTOR;
}
}
if (za->entry[i].ch_filename) {
free(de.filename);
if ((de.filename=strdup(za->entry[i].ch_filename)) == NULL) {
error = 1;
break;
}
de.filename_len = strlen(de.filename);
cd->entry[j].filename = za->entry[i].ch_filename;
cd->entry[j].filename_len = de.filename_len;
}
if (zip_get_archive_flag(za, ZIP_AFL_TORRENT, 0) == 0
&& za->entry[i].ch_comment_len != -1) {
/* as the rest of cd entries, its malloc/free is done by za */
cd->entry[j].comment = za->entry[i].ch_comment;
cd->entry[j].comment_len = za->entry[i].ch_comment_len;
}
cd->entry[j].offset = (unsigned int)ftello(out);
if (ZIP_ENTRY_DATA_CHANGED(za->entry+i) || new_torrentzip) {
struct zip_source *zs;
zs = NULL;
if (!ZIP_ENTRY_DATA_CHANGED(za->entry+i)) {
if ((zs=zip_source_zip(za, za, i, ZIP_FL_RECOMPRESS, 0, -1))
== NULL) {
error = 1;
break;
}
}
if (add_data(za, zs ? zs : za->entry[i].source, &de, out) < 0) {
error = 1;
break;
}
cd->entry[j].last_mod = de.last_mod;
cd->entry[j].comp_method = de.comp_method;
cd->entry[j].comp_size = de.comp_size;
cd->entry[j].uncomp_size = de.uncomp_size;
cd->entry[j].crc = de.crc;
}
else {
if (_zip_dirent_write(&de, out, 1, &za->error) < 0) {
error = 1;
break;
}
/* we just read the local dirent, file is at correct position */
if (copy_data(za->zp, cd->entry[j].comp_size, out,
&za->error) < 0) {
error = 1;
break;
}
}
_zip_dirent_finalize(&de);
}
free(filelist);
if (!error) {
if (write_cdir(za, cd, out) < 0)
error = 1;
}
/* pointers in cd entries are owned by za */
cd->nentry = 0;
_zip_cdir_free(cd);
if (error) {
_zip_dirent_finalize(&de);
fclose(out);
remove(temp);
free(temp);
return -1;
}
if (fclose(out) != 0) {
_zip_error_set(&za->error, ZIP_ER_CLOSE, errno);
remove(temp);
free(temp);
return -1;
}
if (za->zp) {
fclose(za->zp);
za->zp = NULL;
reopen_on_error = 1;
}
if (_zip_rename(temp, za->zn) != 0) {
_zip_error_set(&za->error, ZIP_ER_RENAME, errno);
remove(temp);
free(temp);
if (reopen_on_error) {
/* ignore errors, since we're already in an error case */
za->zp = fopen(za->zn, "rb");
}
return -1;
}
#ifndef _MSC_VER
mask = umask(0);
umask(mask);
chmod(za->zn, 0666&~mask);
#endif
_zip_free(za);
free(temp);
return 0;
}
int
main(int argc, char *argv[])
{
const char *archive;
struct zip *za, *z_in;
struct zip_source *zs;
char buf[100];
int c, arg, err, flags, idx;
flags = 0;
prg = argv[0];
if (argc < 2) {
fprintf(stderr, usage, prg);
return 1;
}
while ((c=getopt(argc, argv, "cent")) != -1) {
switch (c) {
case 'c':
flags |= ZIP_CHECKCONS;
break;
case 'e':
flags |= ZIP_EXCL;
break;
case 'n':
flags |= ZIP_CREATE;
break;
case 't':
flags |= ZIP_TRUNCATE;
break;
default:
fprintf(stderr, usage, argv[0]);
return 1;
}
}
arg = optind;
archive = argv[arg++];
if (flags == 0)
flags = ZIP_CREATE;
if ((za=zip_open(archive, flags, &err)) == NULL) {
zip_error_to_str(buf, sizeof(buf), err, errno);
fprintf(stderr, "can't open zip archive `%s': %s\n", archive, buf);
return 1;
}
err = 0;
while (arg < argc) {
if (strcmp(argv[arg], "add") == 0 && arg+2 < argc) {
/* add */
if ((zs=zip_source_buffer(za, argv[arg+2], strlen(argv[arg+2]), 0)) == NULL) {
fprintf(stderr, "can't create zip_source from buffer: %s\n", zip_strerror(za));
err = 1;
break;
}
if (zip_add(za, argv[arg+1], zs) == -1) {
zip_source_free(zs);
fprintf(stderr, "can't add file `%s': %s\n", argv[arg+1], zip_strerror(za));
err = 1;
break;
}
arg += 3;
} else if (strcmp(argv[arg], "add_dir") == 0 && arg+1 < argc) {
/* add directory */
if (zip_add_dir(za, argv[arg+1]) < 0) {
fprintf(stderr, "can't add directory `%s': %s\n", argv[arg+1], zip_strerror(za));
err = 1;
break;
}
arg += 2;
} else if (strcmp(argv[arg], "add_file") == 0 && arg+4 < argc) {
/* add */
if ((zs=zip_source_file(za, argv[arg+2], atoi(argv[arg+3]), atoi(argv[arg+4]))) == NULL) {
fprintf(stderr, "can't create zip_source from file: %s\n", zip_strerror(za));
err = 1;
break;
}
if (zip_add(za, argv[arg+1], zs) == -1) {
zip_source_free(zs);
fprintf(stderr, "can't add file `%s': %s\n", argv[arg+1], zip_strerror(za));
err = 1;
break;
}
arg += 5;
} else if (strcmp(argv[arg], "add_from_zip") == 0 && arg+5 < argc) {
/* add from another zip file */
idx = atoi(argv[arg+3]);
if ((z_in=zip_open(argv[arg+2], ZIP_CHECKCONS, &err)) == NULL) {
zip_error_to_str(buf, sizeof(buf), err, errno);
fprintf(stderr, "can't open source zip archive `%s': %s\n", argv[arg+2], buf);
err = 1;
break;
}
if ((zs=zip_source_zip(za, z_in, idx, 0, atoi(argv[arg+4]), atoi(argv[arg+5]))) == NULL) {
fprintf(stderr, "error creating file source from `%s' index '%d': %s\n", argv[arg+2], idx, zip_strerror(za));
zip_close(z_in);
err = 1;
break;
}
if (zip_add(za, argv[arg+1], zs) == -1) {
fprintf(stderr, "can't add file `%s': %s\n", argv[arg+1], zip_strerror(za));
zip_source_free(zs);
zip_close(z_in);
err = 1;
break;
}
arg += 6;
} else if (strcmp(argv[arg], "count_extra") == 0 && arg+2 < argc) {
zip_int16_t count;
zip_flags_t ceflags = 0;
idx = atoi(argv[arg+1]);
ceflags = get_flags(argv[arg+2]);
if ((count=zip_file_extra_fields_count(za, idx, ceflags)) < 0) {
fprintf(stderr, "can't get extra field count for file at index `%d': %s\n", idx, zip_strerror(za));
err = 1;
break;
} else {
printf("Extra field count: %d\n", count);
}
arg += 3;
} else if (strcmp(argv[arg], "count_extra_by_id") == 0 && arg+3 < argc) {
zip_int16_t count, eid;
zip_flags_t ceflags = 0;
idx = atoi(argv[arg+1]);
eid = atoi(argv[arg+2]);
ceflags = get_flags(argv[arg+3]);
if ((count=zip_file_extra_fields_count_by_id(za, idx, eid, ceflags)) < 0) {
fprintf(stderr, "can't get extra field count for file at index `%d' and for id `%d': %s\n", idx, eid, zip_strerror(za));
err = 1;
break;
} else {
printf("Extra field count: %d\n", count);
}
arg += 4;
} else if (strcmp(argv[arg], "delete") == 0 && arg+1 < argc) {
/* delete */
idx = atoi(argv[arg+1]);
if (zip_delete(za, idx) < 0) {
fprintf(stderr, "can't delete file at index `%d': %s\n", idx, zip_strerror(za));
err = 1;
break;
}
arg += 2;
} else if (strcmp(argv[arg], "delete_extra") == 0 && arg+1 < argc) {
zip_flags_t geflags;
zip_uint16_t eid;
idx = atoi(argv[arg+1]);
eid = atoi(argv[arg+2]);
geflags = get_flags(argv[arg+3]);
if ((zip_file_extra_field_delete(za, idx, eid, geflags)) < 0) {
fprintf(stderr, "can't delete extra field data for file at index `%d', extra field id `%d': %s\n", idx, eid, zip_strerror(za));
err = 1;
break;
}
arg += 4;
} else if (strcmp(argv[arg], "delete_extra_by_id") == 0 && arg+1 < argc) {
zip_flags_t geflags;
zip_uint16_t eid, eidx;
idx = atoi(argv[arg+1]);
eid = atoi(argv[arg+2]);
eidx = atoi(argv[arg+3]);
geflags = get_flags(argv[arg+4]);
if ((zip_file_extra_field_delete_by_id(za, idx, eid, eidx, geflags)) < 0) {
fprintf(stderr, "can't delete extra field data for file at index `%d', extra field id `%d', extra field idx `%d': %s\n", idx, eid, eidx, zip_strerror(za));
err = 1;
break;
}
arg += 5;
} else if (strcmp(argv[arg], "get_archive_comment") == 0) {
const char *comment;
int len;
/* get archive comment */
if ((comment=zip_get_archive_comment(za, &len, 0)) == NULL)
printf("No archive comment\n");
else
printf("Archive comment: %.*s\n", len, comment);
arg += 1;
} else if (strcmp(argv[arg], "get_extra") == 0 && arg+3 < argc) {
zip_flags_t geflags;
zip_uint16_t id, eidx, eflen;
const zip_uint8_t *efdata;
/* get extra field data */
idx = atoi(argv[arg+1]);
eidx = atoi(argv[arg+2]);
geflags = get_flags(argv[arg+3]);
if ((efdata=zip_file_extra_field_get(za, idx, eidx, &id, &eflen, geflags)) == NULL) {
fprintf(stderr, "can't get extra field data for file at index %d, extra field %d, flags %u: %s\n", idx, eidx, geflags, zip_strerror(za));
err = 1;
} else {
printf("Extra field 0x%04x: len %d", id, eflen);
if (eflen > 0) {
printf(", data ");
hexdump(efdata, eflen);
}
printf("\n");
}
arg += 4;
} else if (strcmp(argv[arg], "get_extra_by_id") == 0 && arg+4 < argc) {
zip_flags_t geflags;
zip_uint16_t eid, eidx, eflen;
const zip_uint8_t *efdata;
idx = atoi(argv[arg+1]);
eid = atoi(argv[arg+2]);
eidx = atoi(argv[arg+3]);
geflags = get_flags(argv[arg+4]);
if ((efdata=zip_file_extra_field_get_by_id(za, idx, eid, eidx, &eflen, geflags)) == NULL) {
fprintf(stderr, "can't get extra field data for file at index %d, extra field id %d, ef index %d, flags %u: %s\n", idx, eid, eidx, geflags, zip_strerror(za));
err = 1;
} else {
printf("Extra field 0x%04x: len %d", eid, eflen);
if (eflen > 0) {
printf(", data ");
hexdump(efdata, eflen);
}
printf("\n");
}
arg += 5;
} else if (strcmp(argv[arg], "get_file_comment") == 0 && arg+1 < argc) {
const char *comment;
int len;
/* get file comment */
idx = atoi(argv[arg+1]);
if ((comment=zip_get_file_comment(za, idx, &len, 0)) == NULL) {
fprintf(stderr, "can't get comment for `%s': %s\n", zip_get_name(za, idx, 0), zip_strerror(za));
err = 1;
break;
} else if (len == 0)
printf("No comment for `%s'\n", zip_get_name(za, idx, 0));
else
printf("File comment for `%s': %.*s\n", zip_get_name(za, idx, 0), len, comment);
arg += 2;
} else if (strcmp(argv[arg], "rename") == 0 && arg+2 < argc) {
/* rename */
idx = atoi(argv[arg+1]);
if (zip_rename(za, idx, argv[arg+2]) < 0) {
fprintf(stderr, "can't rename file at index `%d' to `%s': %s\n", idx, argv[arg+2], zip_strerror(za));
err = 1;
break;
}
arg += 3;
} else if (strcmp(argv[arg], "set_extra") == 0 && arg+5 < argc) {
zip_flags_t geflags;
zip_uint16_t eid, eidx;
const zip_uint8_t *efdata;
idx = atoi(argv[arg+1]);
eid = atoi(argv[arg+2]);
eidx = atoi(argv[arg+3]);
geflags = get_flags(argv[arg+4]);
efdata = (zip_uint8_t *)argv[arg+5];
if ((zip_file_extra_field_set(za, idx, eid, eidx, efdata, (zip_uint16_t)strlen((const char *)efdata), geflags)) < 0) {
fprintf(stderr, "can't set extra field data for file at index `%d', extra field id `%d', index `%d': %s\n", idx, eid, eidx, zip_strerror(za));
err = 1;
break;
}
arg += 6;
} else if (strcmp(argv[arg], "set_file_comment") == 0 && arg+2 < argc) {
/* set file comment */
idx = atoi(argv[arg+1]);
if (zip_file_set_comment(za, idx, argv[arg+2], (zip_uint16_t)strlen(argv[arg+2]), 0) < 0) {
fprintf(stderr, "can't set file comment at index `%d' to `%s': %s\n", idx, argv[arg+2], zip_strerror(za));
err = 1;
break;
}
arg += 3;
} else if (strcmp(argv[arg], "set_file_compression") == 0 && arg+3 < argc) {
/* set file compression */
zip_int32_t method;
zip_uint32_t flags;
idx = atoi(argv[arg+1]);
method = get_compression_method(argv[arg+2]);
flags = atoi(argv[arg+3]);
if (zip_set_file_compression(za, idx, method, flags) < 0) {
fprintf(stderr, "can't set file compression method at index `%d' to `%s', flags `%d': %s\n", idx, argv[arg+2], flags, zip_strerror(za));
err = 1;
break;
}
arg += 4;
} else {
fprintf(stderr, "unrecognized command `%s', or not enough arguments\n", argv[arg]);
err = 1;
break;
}
}
if (zip_close(za) == -1) {
fprintf(stderr, "can't close zip archive `%s': %s\n", archive, zip_strerror(za));
return 1;
}
return err;
}