diff options
Diffstat (limited to 'hexdump.c')
-rw-r--r-- | hexdump.c | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/hexdump.c b/hexdump.c new file mode 100644 index 0000000..e664d3c --- /dev/null +++ b/hexdump.c @@ -0,0 +1,50 @@ +#include "project.h" + +void +hexdump (void *_d, int len) +{ + uint8_t *d = (uint8_t *) _d; + int i, j, k; + int e; + + if (!d || len < 0) + return; + + e = len + 15; + e &= ~15; + + for (i = 0; i < e; i += 16) + { + printf (" %05x:", i); + for (j = 0; j < 16; ++j) + { + k = i + j; + + if (k < len) + printf (" %02x", d[k]); + else + printf (" "); + + if (j == 7) + printf (" "); + } + + printf (" "); + for (j = 0; j < 16; ++j) + { + k = i + j; + if (k < len) + { + uint8_t c = d[k]; + if (c < 33) + c = '.'; + if (c > 126) + c = '.'; + printf ("%c", c); + } + if (j == 7) + printf (" "); + } + printf ("\n"); + } +} |