missing padding in cpio_mkfile in usr/gen_init_cpio.c

Add this line to main() and booting will fail with panic:

        cpio_mkfile("t", "/sbin/init", 0700, 0, 0);

olaf@nectarine:~/kernel/pineapple/linuxppc-2.5> echo > t olaf@nectarine:~/kernel/pineapple/linuxppc-2.5> gcc -o foo usr/gen_init_cpio.c.kaputt.c && ./foo | tee bar | cpio -vt

drwxr-xr-x   2 root     root            0 Nov 16 16:06 /dev
crw-------   1 root     root       5,   1 Nov 16 16:06 /dev/console
drwx------   2 root     root            0 Nov 16 16:06 /root
-rwx------   1 root     root            1 Nov 16 16:05 /sbin/init
cpio: premature end of file
olaf@nectarine:~/kernel/pineapple/linuxppc-2.5> gcc -o foo usr/gen_init_cpio.c && ./foo | tee bar | cpio -vt
drwxr-xr-x   2 root     root            0 Nov 16 16:06 /dev
crw-------   1 root     root       5,   1 Nov 16 16:06 /dev/console
drwx------   2 root     root            0 Nov 16 16:06 /root
-rwx------   1 root     root            1 Nov 16 16:05 /sbin/init

2 blocks
olaf@nectarine:~/kernel/pineapple/linuxppc-2.5> diff -pu usr/gen_init_cpio.c.kaputt.c usr/gen_init_cpio.c

@@ -197,6 +197,7 @@ void cpio_mkfile(const char *filename, c
 
        for (i = 0; i < buf.st_size; ++i)
                fputc(filebuf[i], stdout);
+       offset += buf.st_size;
        close(file);
        free(filebuf);
        push_pad();

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