API: Dump contents of sector 0 in the demo application.

Signed-off-by: Rafal Czubak <rcz@semihalf.com>
Acked-by: Rafal Jaworowski <raj@semihalf.com>

diff --git a/api_examples/demo.c b/api_examples/demo.c
index 7ccdb519f055f1219d12b28462bd623799dafb4f..a8424482ee1251d41c1dd4a220306f7a152a99be 100644 (file)
--- a/api_examples/demo.c
+++ b/api_examples/demo.c
@@ -1,5 +1,5 @@
 /*
- * (C) Copyright 2007 Semihalf
+ * (C) Copyright 2007-2008 Semihalf
  *
  * Written by: Rafal Jaworowski <raj@semihalf.com>
  *
@@ -31,13 +31,15 @@
 
 #define errf(fmt, args...) do { printf("ERROR @ %s(): ", __func__); printf(fmt, ##args); } while (0)
 
-void   test_dump_si(struct sys_info *);
+#define BUF_SZ         2048
+#define WAIT_SECS      5
+
+void   test_dump_buf(void *, int);
 void   test_dump_di(int);
+void   test_dump_si(struct sys_info *);
 void   test_dump_sig(struct api_signature *);
 
-char buf[2048];
-
-#define WAIT_SECS 5
+static char buf[BUF_SZ];
 
 int main(int argc, char *argv[])
 {
@@ -126,11 +128,17 @@ int main(int argc, char *argv[])
        if (i == devs_no)
                printf("No storage devices available\n");
        else {
+               memset(buf, 0, BUF_SZ);
+
                if ((rv = ub_dev_open(i)) != 0)
                        errf("open device %d error %d\n", i, rv);
-               else if ((rv = ub_dev_read(i, &buf, 200, 20)) != 0)
+
+               else if ((rv = ub_dev_read(i, buf, 1, 0)) != 0)
                        errf("could not read from device %d, error %d\n", i, rv);
 
+               printf("Sector 0 dump (512B):\n");
+               test_dump_buf(buf, 512);
+
                ub_dev_close(i);
        }
 
@@ -235,6 +243,36 @@ static char * test_stor_typ(int type)
        return "Unknown";
 }
 
+void test_dump_buf(void *buf, int len)
+{
+       int i;
+       int line_counter = 0;
+       int sep_flag = 0;
+       int addr = 0;
+
+       printf("%07x:\t", addr);
+
+       for (i = 0; i < len; i++) {
+               if (line_counter++ > 15) {
+                       line_counter = 0;
+                       sep_flag = 0;
+                       addr += 16;
+                       i--;
+                       printf("\n%07x:\t", addr);
+                       continue;
+               }
+
+               if (sep_flag++ > 1) {
+                       sep_flag = 1;
+                       printf(" ");
+               }
+
+               printf("%02x", *((char *)buf++));
+       }
+
+       printf("\n");
+}
+
 void test_dump_di(int handle)
 {
        int i;