diff options
Diffstat (limited to 'toys/posix/file.c')
| -rw-r--r-- | toys/posix/file.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/toys/posix/file.c b/toys/posix/file.c index 715c3e86..333869cd 100644 --- a/toys/posix/file.c +++ b/toys/posix/file.c @@ -244,10 +244,14 @@ static void do_regular_file(int fd, char *name) // TODO: parsing JPEG for width/height is harder than GIF or PNG. else if (len>32 && !memcmp(toybuf, "\xff\xd8", 2)) xputs("JPEG image data"); - // https://docs.oracle.com/javase/specs/jvms/se7/html/jvms-4.html + // https://en.wikipedia.org/wiki/Java_class_file#General_layout else if (len>8 && strstart(&s, "\xca\xfe\xba\xbe")) - xprintf("Java class file, version %d.%d\n", - (int)peek_be(s+2, 2), (int)peek_be(s, 2)); + xprintf("Java class file, version %d.%d (Java 1.%d)\n", + (int)peek_be(s+2, 2), (int)peek_be(s, 2), (int)peek_be(s+2, 2)-44); + + // https://source.android.com/devices/tech/dalvik/dex-format#dex-file-magic + else if (len>8 && strstart(&s, "dex\n") && s[3] == 0) + xprintf("Android dex file, version %s\n", s); // https://people.freebsd.org/~kientzle/libarchive/man/cpio.5.txt // the lengths for cpio are size of header + 9 bytes, since any valid |