source/gldump.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include <unistd.h>
   4 #include <fcntl.h>
   5 #include <sys/stat.h>
   6 #include <sys/mman.h>
   7 #include "glprint.h"
   8
   9 int main(int argc, char **argv)
  10 {
  11         int fd;
  12         struct stat st;
  13         GlDecoder *dec;
  14         char *addr;
  15         char *end;
  16         char *ptr;
  17
  18         if(argc<2)
  19         {
  20                 fprintf(stderr, "Usage: %s <dumpfile>\n", argv[0]);
  21                 return 1;
  22         }
  23
  24         fd = open(argv[1], O_RDONLY);
  25         if(fd==-1)
  26         {
  27                 perror("open");
  28                 return 1;
  29         }
  30         fstat(fd, &st);
  31         addr = (char *)mmap(NULL, st.st_size, PROT_READ, MAP_SHARED, fd, 0);
  32         end = addr+st.st_size;
  33         ptr = addr;
  34
  35         dec = glprint_new(NULL, 0);
  36
  37         while(ptr<end)
  38         {
  39                 int ret;
  40                 ret = gldecoder_decode(dec, ptr, end-ptr);
  41                 if(ret<0)
  42                 {
  43                         int bytes_left = end-ptr;
  44                         fprintf(stderr, "Decode error with %d bytes left\n", bytes_left);
  45                         break;
  46                 }
  47                 ptr += ret;
  48                 printf("%s\n", glprint_get_buffer(dec));
  49         }
  50         munmap(addr, st.st_size);
  51         close(fd);
  52         gldecoder_delete(dec);
  53
  54         return 0;
  55 }