test/debug/crc32.c

   1
   2 /*
   3  * cc crc32.c /usr/src/sys/libkern/{crc32.c,icrc32.c} -o ~/bin/crc32
   4  */
   5
   6 #include <sys/types.h>
   7 #include <stdio.h>
   8 #include <stdlib.h>
   9 #include <unistd.h>
  10
  11 uint32_t iscsi_crc32(const void *buf, size_t size);
  12 uint32_t iscsi_crc32_ext(const void *buf, size_t size, uint32_t ocrc);
  13 uint32_t crc32(const void *buf, size_t size);
  14 uint32_t crc32_ext(const void *buf, size_t size, uint32_t ocrc);
  15
  16 #undef ISCSI
  17
  18 int
  19 main(int ac, char **av)
  20 {
  21     char buf[16384];
  22     int n;
  23 #ifdef ISCSI
  24     u_int32_t crc1 = iscsi_crc32(NULL, 0);
  25 #else
  26     u_int32_t crc2 = crc32(NULL, 0);
  27 #endif
  28
  29     while ((n = read(0, buf, sizeof(buf))) > 0) {
  30 #ifdef ISCSI
  31         crc1 = iscsi_crc32_ext(buf, n, crc1);
  32 #else
  33         crc2 = crc32_ext(buf, n, crc2);
  34 #endif
  35     }
  36 #ifdef ISCSI
  37     printf("iscsi_crc32 %08x\n", crc1);
  38 #else
  39     printf("crc32 %08x\n", crc2);
  40 #endif
  41     return(0);
  42 }