bfin-rets-insn/initramfs.i.3

   1 typedef int (*initcall_t) (void);
   2  char *message;
   3  void  error(char *x)
   4 {
   5         if (!message)
   6                 message = x;
   7 }
   8
   9
  10 enum state {
  11         Start, Collect, GotHeader, SkipIt, GotName, CopyFile, GotSymlink, Reset
  12 } state, next_state;
  13
  14 long long this_header, next_header;
  15
  16 char *collected;
  17  int  do_start(void)
  18 {
  19 }
  20  int  do_collect(void)
  21 {
  22 }
  23  int  do_header(void)
  24 {
  25         if (memcmp(collected, "070707", 6) == 0) {
  26                 error("incorrect cpio method used: use -H newc option");
  27         }
  28 }
  29  int  do_skip(void)
  30 {
  31 }
  32  int  do_reset(void)
  33 {
  34 }
  35  int  do_name(void)
  36 {
  37 }
  38  int  do_copy(void)
  39 {
  40 }
  41  int  do_symlink(void)
  42 {
  43 }
  44
  45 int (*actions[]) (void) =
  46 {
  47 [Start] = do_start,[Collect] = do_collect,[GotHeader] =
  48             do_header,[SkipIt] = do_skip,[GotName] =
  49             do_name,[CopyFile] = do_copy,[GotSymlink] =
  50             do_symlink,[Reset] = do_reset,};
  51  int
  52      write_buffer(char *buf,
  53                                                              unsigned len)
  54 {
  55         while (!actions[state] ()) ;
  56 }
  57  char *
  58      unpack_to_rootfs(char *buf,
  59                                                                  unsigned len,
  60                                                                  int check_only)
  61 {
  62         int written;
  63         while (!message && len) {
  64                 if (*buf == '0' && !(this_header & 3)) {
  65                         written = write_buffer(buf, len);
  66                 }
  67                 if (state != Reset)
  68                         error("junk in gzipped archive");
  69         }
  70 }
  71 extern char __initramfs_start[], __initramfs_end[];
  72  int  populate_rootfs(void)
  73 {
  74         char *err =
  75             unpack_to_rootfs(__initramfs_start,
  76                              __initramfs_end - __initramfs_start, 0);
  77 }
  78  initcall_t __initcall_populate_rootfsrootfs __attribute__ ((__used__))
  79 =
  80     populate_rootfs;