static void do_extract_png_or_jp2(deark *c, lctx *d, struct page_ctx *pg)
{
de_byte buf[8];
de_finfo *fi = NULL;
de_dbg(c, "Trying to extract file at %d\n", (int)pg->image_pos);
// Detect the format
de_read(buf, pg->image_pos, sizeof(buf));
fi = de_finfo_create(c);
de_finfo_set_name_from_sz(c, fi, pg->filename_token, DE_ENCODING_ASCII);
if(buf[4]=='j' && buf[5]=='P') {
dbuf_create_file_from_slice(c->infile, pg->image_pos, pg->image_len, "jp2", fi, 0);
}
else if(buf[0]==0x89 && buf[1]==0x50) {
dbuf_create_file_from_slice(c->infile, pg->image_pos, pg->image_len, "png", fi, 0);
}
else {
de_err(c, "(Image #%d) Unidentified file format\n", pg->image_num);
}
de_finfo_destroy(c, fi);
}
static void do_extract_file(deark *c, lctx *d, de_int64 dir_pos,
de_byte filetype_c64s, de_byte filetype)
{
de_int64 load_addr;
de_int64 end_addr;
de_int64 offset;
dbuf *f = NULL;
de_int64 payload_size; // = file_size-2
de_ucstring *fname = NULL;
de_int64 fname_len;
de_int64 i;
de_int64 fnpos;
de_finfo *fi = NULL;
load_addr = de_getui16le(dir_pos+2);
end_addr = de_getui16le(dir_pos+4);
offset = de_getui32le(dir_pos+8);
de_dbg(c, "load_addr=%d end_addr=%d offset=%d\n", (int)load_addr,
(int)end_addr, (int)offset);
// File name at pos+16
fnpos = dir_pos+16;
// Find the length of the (space-padded) filename.
fname_len = 0;
for(i=15; i>=0; i--) {
if(de_getbyte(fnpos+i)!=' ') {
fname_len = i+1;
break;
}
}
de_dbg2(c, "filename length: %d\n", (int)fname_len);
fname = ucstring_create(c);
dbuf_read_to_ucstring(c->infile, fnpos, fname_len, fname, 0, DE_ENCODING_PETSCII);
de_dbg(c, "filename: \"%s\"\n", ucstring_get_printable_sz(fname));
ucstring_append_sz(fname, ".prg", DE_ENCODING_ASCII);
fi = de_finfo_create(c);
de_finfo_set_name_from_ucstring(c, fi, fname);
fi->original_filename_flag = 1;
payload_size = end_addr - load_addr;
if(payload_size < 0) {
// TODO: Try to support files that don't have end_addr set properly.
de_err(c, "This type of T64 file is not supported.\n");
goto done;
}
f = dbuf_create_output_file(c, NULL, fi, 0);
dbuf_copy(c->infile, dir_pos+2, 2, f);
dbuf_copy(c->infile, offset, payload_size, f);
done:
dbuf_close(f);
de_finfo_destroy(c, fi);
ucstring_destroy(fname);
}
static void handler_attachedfile_end(deark *c, lctx *d)
{
de_finfo *fi = NULL;
if(!d->attachmentctx) goto done;
if(d->attachmentctx->data_pos==0) goto done;
fi = de_finfo_create(c);
// TODO: We could do a better job of constructing filenames in various
// situations.
if(d->attachmentctx->filename &&
(d->attachmentctx->filename->len > 0) &&
c->filenames_from_file)
{
de_finfo_set_name_from_ucstring(c, fi, d->attachmentctx->filename, 0);
}
else
{
de_finfo_set_name_from_sz(c, fi, "bin", 0, DE_ENCODING_UTF8);
}
dbuf_create_file_from_slice(c->infile, d->attachmentctx->data_pos,
d->attachmentctx->data_len, NULL, fi, DE_CREATEFLAG_IS_AUX);
done:
de_finfo_destroy(c, fi);
destroy_attachment_data(c, d);
}
static int do_gem_img(deark *c, lctx *d)
{
dbuf *unc_pixels = NULL;
de_bitmap *img = NULL;
de_finfo *fi = NULL;
int is_color = 0;
i64 k;
if(d->header_size_in_words==9 && (d->nplanes==3 || d->nplanes==4)) {
i64 x;
x = de_getu16be(8*2);
if(x==0) {
is_color = 1;
}
}
de_dbg(c, "image at %d", (int)d->header_size_in_bytes);
unc_pixels = dbuf_create_membuf(c, d->rowspan_total*d->h, 0);
uncompress_pixels(c, d, unc_pixels, d->header_size_in_bytes, c->infile->len-d->header_size_in_bytes);
img = de_bitmap_create(c, d->w, d->h, is_color?3:1);
fi = de_finfo_create(c);
set_density(c, d, fi);
if(d->nplanes==1) {
de_convert_image_bilevel(unc_pixels, 0, d->rowspan_per_plane, img, DE_CVTF_WHITEISZERO);
}
else if(is_color && d->nplanes==3) {
for(k=0; k<8; k++) {
d->pal[k] = pal3bit[k];
}
read_paletted_image(c, d, unc_pixels, img);
}
else if(is_color && d->nplanes==4) {
for(k=0; k<16; k++) {
d->pal[k] = pal4bit[k];
}
read_paletted_image(c, d, unc_pixels, img);
}
else {
de_make_grayscale_palette(d->pal, ((i64)1)<<((unsigned int)d->nplanes), 1);
read_paletted_image(c, d, unc_pixels, img);
}
de_bitmap_write_to_file_finfo(img, fi, 0);
de_bitmap_destroy(img);
de_finfo_destroy(c, fi);
dbuf_close(unc_pixels);
return 1;
}
static void de_run_fnt(deark *c, de_module_params *mparams)
{
lctx *d = NULL;
d = de_malloc(c, sizeof(lctx));
if(!do_read_header(c, d)) goto done;
read_face_name(c, d);
do_make_image(c, d);
done:
de_finfo_destroy(c, d->fi);
de_free(c, d);
}
static void do_lump_extract(deark *c, lctx *d, i64 dpos, i64 dlen, struct de_stringreaderdata *srd)
{
de_finfo *fi = NULL;
// 0-length lumps are assumed to be special "virtual" lumps.
if(dlen<=0) return;
if(dpos<0 || dpos>=c->infile->len || dpos+dlen>c->infile->len) return;
fi = de_finfo_create(c);
de_finfo_set_name_from_ucstring(c, fi, srd->str, 0);
fi->original_filename_flag = 1;
dbuf_create_file_from_slice(c->infile, dpos, dlen, NULL, fi, 0);
de_finfo_destroy(c, fi);
}
static void handler_iccp(deark *c, lctx *d, struct handler_params *hp)
{
u8 cmpr_type;
dbuf *f = NULL;
struct de_stringreaderdata *prof_name_srd = NULL;
de_finfo *fi = NULL;
char prof_name2[100];
size_t prof_name2_strlen;
i64 pos = hp->dpos;
prof_name_srd = dbuf_read_string(c->infile, pos, 80, 80,
DE_CONVFLAG_STOP_AT_NUL, DE_ENCODING_LATIN1);
if(!prof_name_srd->found_nul) goto done;
de_dbg(c, "profile name: \"%s\"", ucstring_getpsz_d(prof_name_srd->str));
pos += prof_name_srd->bytes_consumed;
// Our working copy, to use as part of the filename.
de_strlcpy(prof_name2, prof_name_srd->sz, sizeof(prof_name2));
if(!de_strcasecmp(prof_name2, "icc") ||
!de_strcasecmp(prof_name2, "icc profile"))
{
prof_name2[0] = '\0'; // Ignore generic name.
}
prof_name2_strlen = de_strlen(prof_name2);
if(prof_name2_strlen>=5) {
if(de_sz_has_ext(prof_name2, "icc")) {
// If the name already ends in ".icc", chop it off so that we don't end
// up with a double ".icc.icc" file extension.
prof_name2[prof_name2_strlen-4] = '\0';
}
}
cmpr_type = de_getbyte_p(&pos);
if(cmpr_type!=0) return;
fi = de_finfo_create(c);
if(c->filenames_from_file && prof_name2[0])
de_finfo_set_name_from_sz(c, fi, prof_name2, 0, DE_ENCODING_LATIN1);
f = dbuf_create_output_file(c, "icc", fi, DE_CREATEFLAG_IS_AUX);
de_decompress_deflate(c->infile, pos, hp->dlen - pos, f, 0, NULL,
d->is_CgBI ? 0 : DE_DEFLATEFLAG_ISZLIB);
done:
dbuf_close(f);
de_finfo_destroy(c, fi);
de_destroy_stringreaderdata(c, prof_name_srd);
}
static void do_decode_image(deark *c, lctx *d, struct tgaimginfo *imginfo, dbuf *unc_pixels,
const char *token, unsigned int createflags)
{
de_finfo *fi = NULL;
fi = de_finfo_create(c);
if(token) {
de_finfo_set_name_from_sz(c, fi, token, 0, DE_ENCODING_LATIN1);
}
if(d->mod_time.is_valid) {
fi->image_mod_time = d->mod_time;
}
do_decode_image_default(c, d, imginfo, unc_pixels, fi, createflags);
de_finfo_destroy(c, fi);
}
static void extract_unknown_ole_obj(deark *c, lctx *d, i64 pos, i64 len,
struct de_stringreaderdata *srd_typename)
{
de_finfo *fi = NULL;
de_ucstring *s = NULL;
fi = de_finfo_create(c);
s = ucstring_create(c);
ucstring_append_sz(s, "oleobj", DE_ENCODING_LATIN1);
if(ucstring_isnonempty(srd_typename->str)) {
ucstring_append_sz(s, ".", DE_ENCODING_LATIN1);
ucstring_append_ucstring(s, srd_typename->str);
}
de_finfo_set_name_from_ucstring(c, fi, s, 0);
dbuf_create_file_from_slice(c->infile, pos, len, "bin", fi, 0);
ucstring_destroy(s);
de_finfo_destroy(c, fi);
}
static int do_gzip_read_member(deark *c, lctx *d, i64 pos1, i64 *member_size)
{
u8 b0, b1;
i64 pos;
i64 n;
i64 foundpos;
i64 string_len;
i64 cmpr_data_len;
i64 mod_time_unix;
u32 crc_calculated;
de_ucstring *member_name = NULL;
int saved_indent_level;
int ret;
struct member_data *md = NULL;
int retval = 0;
md = de_malloc(c, sizeof(struct member_data));
de_dbg_indent_save(c, &saved_indent_level);
de_dbg(c, "gzip member at %d", (int)pos1);
de_dbg_indent(c, 1);
pos = pos1;
b0 = de_getbyte(pos+0);
b1 = de_getbyte(pos+1);
if(b0!=0x1f || b1!=0x8b) {
de_err(c, "Invalid gzip signature at %d. This is not a valid gzip file.",
(int)pos1);
goto done;
}
md->cmpr_code = de_getbyte(pos+2);
if(md->cmpr_code!=0x08) {
de_err(c, "Unsupported compression type (%d)", (int)md->cmpr_code);
goto done;
}
md->flags = de_getbyte(pos+3);
de_dbg(c, "flags: 0x%02x", (unsigned int)md->flags);
pos += 4;
mod_time_unix = de_getu32le(pos);
de_unix_time_to_timestamp(mod_time_unix, &md->mod_time_ts, 0x1);
if(md->mod_time_ts.is_valid) {
char timestamp_buf[64];
de_timestamp_to_string(&md->mod_time_ts, timestamp_buf, sizeof(timestamp_buf), 0);
de_dbg(c, "mod time: %" I64_FMT " (%s)", mod_time_unix, timestamp_buf);
}
pos += 4;
b0 = de_getbyte(pos++);
de_dbg(c, "extra flags: 0x%02x", (unsigned int)b0);
b0 = de_getbyte(pos++);
de_dbg(c, "OS or filesystem: %d (%s)", (int)b0, get_os_name(b0));
if(md->flags & GZIPFLAG_FEXTRA) {
n = de_getu16le(pos); // XLEN
// TODO: It might be interesting to dissect these extra fields, but it's
// hard to find even a single file that uses them.
de_dbg(c, "[extra fields at %d, dpos=%d, dlen=%d]",
(int)pos, (int)(pos+2), (int)n);
pos += 2;
pos += n;
}
if(md->flags & GZIPFLAG_FNAME) {
ret = dbuf_search_byte(c->infile, 0x00, pos, c->infile->len - pos,
&foundpos);
if(!ret) {
de_err(c, "Invalid NAME field");
goto done;
}
string_len = foundpos - pos;
member_name = ucstring_create(c);
#define DE_GZIP_MAX_FNLEN 300
dbuf_read_to_ucstring_n(c->infile, pos, string_len, DE_GZIP_MAX_FNLEN,
member_name, 0, DE_ENCODING_LATIN1);
de_dbg(c, "file name at %d, len=%d: \"%s\"", (int)pos, (int)string_len,
ucstring_getpsz_d(member_name));
pos = foundpos + 1;
}
if(md->flags & GZIPFLAG_FCOMMENT) {
ret = dbuf_search_byte(c->infile, 0x00, pos, c->infile->len - pos,
&foundpos);
if(!ret) {
de_err(c, "Invalid COMMENT field");
goto done;
}
pos = foundpos + 1;
}
if(md->flags & GZIPFLAG_FHCRC) {
md->crc16_reported = (u32)de_getu16le(pos);
de_dbg(c, "crc16 (reported): 0x%04x", (unsigned int)md->crc16_reported);
pos += 2;
}
de_dbg(c, "compressed blocks at %d", (int)pos);
if(!d->output_file) {
// Although any member can have a name and mod time, this metadata
// is ignored for members after the first one.
de_finfo *fi = NULL;
fi = de_finfo_create(c);
if(member_name && c->filenames_from_file) {
de_finfo_set_name_from_ucstring(c, fi, member_name, 0);
fi->original_filename_flag = 1;
}
if(md->mod_time_ts.is_valid) {
fi->mod_time = md->mod_time_ts;
}
d->output_file = dbuf_create_output_file(c, member_name?NULL:"bin", fi, 0);
de_finfo_destroy(c, fi);
}
d->output_file->writecallback_fn = our_writecallback;
d->output_file->userdata = (void*)md;
md->crco = d->crco;
de_crcobj_reset(md->crco);
ret = de_decompress_deflate(c->infile, pos, c->infile->len - pos, d->output_file,
0, &cmpr_data_len, 0);
crc_calculated = de_crcobj_getval(md->crco);
d->output_file->writecallback_fn = NULL;
d->output_file->userdata = NULL;
if(!ret) goto done;
pos += cmpr_data_len;
de_dbg(c, "crc32 (calculated): 0x%08x", (unsigned int)crc_calculated);
md->crc32_reported = (u32)de_getu32le(pos);
de_dbg(c, "crc32 (reported) : 0x%08x", (unsigned int)md->crc32_reported);
pos += 4;
if(crc_calculated != md->crc32_reported) {
de_warn(c, "CRC check failed: Expected 0x%08x, got 0x%08x",
(unsigned int)md->crc32_reported, (unsigned int)crc_calculated);
}
md->isize = de_getu32le(pos);
de_dbg(c, "uncompressed size (mod 2^32): %u", (unsigned int)md->isize);
pos += 4;
retval = 1;
done:
if(retval)
*member_size = pos - pos1;
else
*member_size = 0;
ucstring_destroy(member_name);
de_free(c, md);
de_dbg_indent_restore(c, saved_indent_level);
return retval;
}
static int do_gzip_read_member(deark *c, lctx *d, de_int64 pos1, de_int64 *member_size)
{
de_byte b0, b1;
de_int64 cmpr_code;
de_int64 pos;
de_int64 n;
de_int64 foundpos;
de_int64 string_len;
de_int64 cmpr_data_len;
de_int64 isize;
de_int64 mod_time_unix;
struct de_timestamp mod_time_ts;
de_uint32 crc32_field;
de_ucstring *member_name = NULL;
de_finfo *fi = NULL;
int saved_indent_level;
int ret;
int retval = 0;
mod_time_ts.is_valid = 0;
de_dbg_indent_save(c, &saved_indent_level);
de_dbg(c, "gzip member at %d\n", (int)pos1);
de_dbg_indent(c, 1);
pos = pos1;
b0 = de_getbyte(pos+0);
b1 = de_getbyte(pos+1);
if(b0!=0x1f || b1!=0x8b) {
de_err(c, "Invalid gzip signature at %d. This is not a valid gzip file.\n",
(int)pos1);
goto done;
}
cmpr_code=de_getbyte(pos+2);
if(cmpr_code!=0x08) {
de_err(c, "Unsupported compression type (%d)\n", (int)cmpr_code);
goto done;
}
d->flags = de_getbyte(pos+3);
de_dbg(c, "flags: 0x%02x\n", (unsigned int)d->flags);
pos += 4;
mod_time_unix = de_getui32le(pos);
de_unix_time_to_timestamp(mod_time_unix, &mod_time_ts);
if(mod_time_ts.is_valid) {
char timestamp_buf[64];
de_timestamp_to_string(&mod_time_ts, timestamp_buf, sizeof(timestamp_buf), 1);
de_dbg(c, "mod time: %" INT64_FMT " (%s)\n", mod_time_unix, timestamp_buf);
}
pos += 4;
b0 = de_getbyte(pos++);
de_dbg(c, "extra flags: 0x%02x\n", (unsigned int)b0);
b0 = de_getbyte(pos++);
de_dbg(c, "OS or filesystem: %d (%s)\n", (int)b0, get_os_name(b0));
if(d->flags & GZIPFLAG_FEXTRA) {
n = de_getui16le(pos); // XLEN
// TODO: It might be interesting to dissect these extra fields, but it's
// hard to find even a single file that uses them.
de_dbg(c, "[extra fields at %d, dpos=%d, dlen=%d]\n",
(int)pos, (int)(pos+2), (int)n);
pos += 2;
pos += n;
}
if(d->flags & GZIPFLAG_FNAME) {
ret = dbuf_search_byte(c->infile, 0x00, pos, c->infile->len - pos,
&foundpos);
if(!ret) {
de_err(c, "Invalid NAME field\n");
goto done;
}
string_len = foundpos - pos;
member_name = ucstring_create(c);
dbuf_read_to_ucstring_n(c->infile, pos, string_len, 300, member_name, 0, DE_ENCODING_LATIN1);
de_dbg(c, "file name at %d, len=%d: \"%s\"\n", (int)pos, (int)string_len,
ucstring_get_printable_sz(member_name));
pos = foundpos + 1;
}
if(d->flags & GZIPFLAG_FCOMMENT) {
ret = dbuf_search_byte(c->infile, 0x00, pos, c->infile->len - pos,
&foundpos);
if(!ret) {
de_err(c, "Invalid COMMENT field\n");
goto done;
}
pos = foundpos + 1;
}
if(d->flags & GZIPFLAG_FHCRC) {
pos += 2;
}
de_dbg(c, "compressed blocks at %d\n", (int)pos);
if(!d->output_file) {
fi = de_finfo_create(c);
if(member_name && c->filenames_from_file) {
de_finfo_set_name_from_ucstring(c, fi, member_name);
fi->original_filename_flag = 1;
}
if(mod_time_ts.is_valid) {
fi->mod_time = mod_time_ts;
}
d->output_file = dbuf_create_output_file(c, member_name?NULL:"bin", fi, 0);
}
ret = de_uncompress_deflate(c->infile, pos, c->infile->len - pos, d->output_file, &cmpr_data_len);
if(!ret) goto done;
pos += cmpr_data_len;
crc32_field = (de_uint32)de_getui32le(pos);
de_dbg(c, "crc32: 0x%08x\n", (unsigned int)crc32_field);
pos += 4;
// TODO: Validate CRCs
isize = de_getui32le(pos);
de_dbg(c, "uncompressed size (mod 2^32): %u\n", (unsigned int)isize);
pos += 4;
retval = 1;
done:
if(retval)
*member_size = pos - pos1;
else
*member_size = 0;
ucstring_destroy(member_name);
de_finfo_destroy(c, fi);
de_dbg_indent_restore(c, saved_indent_level);
return retval;
}
static void do_card_index(deark *c, lctx *d, de_int64 cardnum, de_int64 pos)
{
de_int64 datapos;
de_int64 bitmap_len;
de_int64 w, h;
de_int64 src_rowspan;
de_int64 text_len;
de_int64 text_pos;
struct deark_bitmap *img = NULL;
de_finfo *fi_bitmap = NULL;
de_finfo *fi_text = NULL;
const char *cardtype;
de_ucstring *name = NULL;
int saved_indent_level;
de_dbg_indent_save(c, &saved_indent_level);
datapos = de_getui32le(pos+6);
de_dbg(c, "card #%d at %d, dpos=%d\n", (int)cardnum, (int)pos, (int)datapos);
de_dbg_indent(c, 1);
if(datapos>=c->infile->len) goto done;
bitmap_len = de_getui16le(datapos);
de_dbg(c, "bitmap length: %d\n", (int)bitmap_len);
if(bitmap_len==0) {
text_len = de_getui16le(datapos+2);
text_pos = datapos+4;
}
else {
text_len = de_getui16le(datapos + bitmap_len + 10);
text_pos = datapos + bitmap_len + 10;
}
de_dbg(c, "text length: %d\n", (int)text_len);
if(bitmap_len==0 && text_len==0) {
cardtype = "empty";
}
else if(bitmap_len==0) {
cardtype = "text-only";
}
else if(text_len==0) {
cardtype = "graphics-only";
}
else {
cardtype = "graphics+text";
}
de_dbg(c, "card type: %s\n", cardtype);
if(bitmap_len==0 && text_len==0) {
goto done;
}
name = ucstring_create(c);
dbuf_read_to_ucstring(c->infile, pos+11, 40, name, DE_CONVFLAG_STOP_AT_NUL, DE_ENCODING_ASCII);
de_dbg(c, "name: \"%s\"\n", ucstring_get_printable_sz(name));
// Text
if(text_len!=0 && c->extract_level>=2) {
fi_text = de_finfo_create(c);
if(c->filenames_from_file)
de_finfo_set_name_from_ucstring(c, fi_text, name);
do_text_data(c, d, fi_text, text_pos, text_len);
}
// Bitmap
if(bitmap_len==0) goto done;
fi_bitmap = de_finfo_create(c);
if(c->filenames_from_file)
de_finfo_set_name_from_ucstring(c, fi_bitmap, name);
w = de_getui16le(datapos+2);
h = de_getui16le(datapos+4);
de_dbg(c, "bitmap dimensions: %dx%d\n", (int)w, (int)h);
img = de_bitmap_create(c, w, h, 1);
src_rowspan = ((w+15)/16)*2;
de_convert_and_write_image_bilevel(c->infile, datapos+10,
w, h, src_rowspan, 0, fi_bitmap, 0);
done:
ucstring_destroy(name);
de_bitmap_destroy(img);
de_finfo_destroy(c, fi_bitmap);
de_finfo_destroy(c, fi_text);
de_dbg_indent_restore(c, saved_indent_level);
}
// XIMG and similar formats.
// TODO: Should this function be merged with do_gem_img()?
static int do_gem_ximg(deark *c, lctx *d)
{
dbuf *unc_pixels = NULL;
de_bitmap *img = NULL;
de_finfo *fi = NULL;
int retval = 0;
int saved_indent_level;
de_dbg_indent_save(c, &saved_indent_level);
de_dbg(c, "header (continued) at %d", 8*2);
de_dbg_indent(c, 1);
if((d->nplanes>=1 && d->nplanes<=8) /* || d->nplanes==24 */) {
;
}
else {
if(d->is_ximg)
de_err(c, "%d-plane XIMG images are not supported", (int)d->nplanes);
else
de_err(c, "This type of %d-plane image is not supported", (int)d->nplanes);
goto done;
}
if(d->header_size_in_words==25 && !d->is_ximg) {
i64 pal_pos = d->header_size_in_bytes-32;
de_dbg(c, "palette at %d", (int)pal_pos);
de_dbg_indent(c, 1);
de_fmtutil_read_atari_palette(c, c->infile, pal_pos,
d->pal, 16, ((i64)1)<<d->nplanes, 0);
de_dbg_indent(c, -1);
}
else {
read_palette_ximg(c, d);
}
if(d->nplanes==1 && d->pal[0]==d->pal[1]) {
de_dbg(c, "Palette doesn't seem to be present. Using a default palette.");
d->pal[0] = DE_STOCKCOLOR_WHITE;
d->pal[1] = DE_STOCKCOLOR_BLACK;
}
de_dbg_indent(c, -1);
de_dbg(c, "image at %d", (int)d->header_size_in_bytes);
unc_pixels = dbuf_create_membuf(c, d->rowspan_total*d->h, 0);
uncompress_pixels(c, d, unc_pixels, d->header_size_in_bytes, c->infile->len-d->header_size_in_bytes);
img = de_bitmap_create(c, d->w, d->h, 3);
fi = de_finfo_create(c);
set_density(c, d, fi);
if(d->nplanes>8) {
read_rgb_image(c, d, unc_pixels, img);
}
else {
read_paletted_image(c, d, unc_pixels, img);
}
de_bitmap_write_to_file_finfo(img, fi, 0);
retval = 1;
done:
de_bitmap_destroy(img);
de_finfo_destroy(c, fi);
dbuf_close(unc_pixels);
de_dbg_indent_restore(c, saved_indent_level);
return retval;
}
static void de_run_rpm(deark *c, de_module_params *mparams)
{
lctx *d = NULL;
i64 pos;
u8 buf[8];
const char *ext;
i64 section_size = 0;
de_finfo *fi = NULL;
char filename[128];
d = de_malloc(c, sizeof(lctx));
if(!do_lead_section(c, d)) {
goto done;
}
pos = 96;
if(!do_header_structure(c, d, 1, pos, §ion_size)) {
goto done;
}
pos += section_size;
// Header structures are 8-byte aligned. The first one always starts at
// offset 96, so we don't have to worry about it. But we need to make
// sure the second one is aligned.
pos = ((pos + 7)/8)*8;
if(!do_header_structure(c, d, 0, pos, §ion_size)) {
goto done;
}
pos += section_size;
de_dbg(c, "data pos: %d", (int)pos);
if(pos > c->infile->len) goto done;
// There is usually a tag that indicates the compression format, but we
// primarily figure out the format by sniffing its magic number, on the
// theory that that's more reliable.
// TODO: I think it's also theoretically possible that it could use an archive
// format other than cpio.
de_read(buf, pos, 8);
if(buf[0]==0x1f && buf[1]==0x8b) {
ext = "cpio.gz";
}
else if(buf[0]==0x42 && buf[1]==0x5a && buf[2]==0x68) {
ext = "cpio.bz2";
}
else if(buf[0]==0xfd && buf[1]==0x37 && buf[2]==0x7a) {
ext = "cpio.xz";
}
else if(d->cmpr_type==DE_RPM_CMPR_LZMA || buf[0]==0x5d) {
ext = "cpio.lzma";
}
else {
de_warn(c, "Unidentified compression or archive format");
ext = "cpio.bin";
}
if(d->name_srd && c->filenames_from_file) {
const char *version2 = "x";
const char *release2 = "x";
if(d->version_srd) version2 = d->version_srd->sz;
if(d->release_srd) release2 = d->release_srd->sz;
fi = de_finfo_create(c);
de_snprintf(filename, sizeof(filename), "%s-%s.%s",
d->name_srd->sz, version2, release2);
de_finfo_set_name_from_sz(c, fi, filename, 0, DE_ENCODING_ASCII);
}
dbuf_create_file_from_slice(c->infile, pos, c->infile->len - pos, ext, fi, 0);
done:
de_finfo_destroy(c, fi);
if(d) {
de_destroy_stringreaderdata(c, d->name_srd);
de_destroy_stringreaderdata(c, d->release_srd);
de_destroy_stringreaderdata(c, d->version_srd);
de_free(c, d);
}
}
