diff mbox

[v2] util: Improved qemu_hexmap() to include an ascii dump of the buffer

Message ID 1458902535-9715-1-git-send-email-109lozanoi@gmail.com (mailing list archive)
State New, archived
Headers show

Commit Message

Isaac Lozano March 25, 2016, 10:42 a.m. UTC
qemu_hexdump() in util/hexdump.c has been changed to give also include a
ascii dump of the buffer. Also, calls to hex_dump() in net/net.c have
been replaced with calls to qemu_hexdump(). This takes care of two misc
BiteSized Tasks.

Signed-off-by: Isaac Lozano <109lozanoi@gmail.com>
---

v2: Fixed code-style and made debug line smaller.

 net/net.c      | 30 +-----------------------------
 util/hexdump.c | 33 ++++++++++++++++++++++-----------
 2 files changed, 23 insertions(+), 40 deletions(-)

Comments

Thomas Huth March 30, 2016, 7:18 a.m. UTC | #1
There's a typo in the title: qemu_hexmap should be qemu_hexdump/ instead.

On 25.03.2016 11:42, Isaac Lozano wrote:
> qemu_hexdump() in util/hexdump.c has been changed to give also include a
> ascii dump of the buffer. Also, calls to hex_dump() in net/net.c have
> been replaced with calls to qemu_hexdump(). This takes care of two misc
> BiteSized Tasks.
> 
> Signed-off-by: Isaac Lozano <109lozanoi@gmail.com>
> ---
> 
> v2: Fixed code-style and made debug line smaller.
> 
>  net/net.c      | 30 +-----------------------------
>  util/hexdump.c | 33 ++++++++++++++++++++++-----------
>  2 files changed, 23 insertions(+), 40 deletions(-)
[...]

Code looks fine now, thanks for taking care of this!

Reviewed-by: Thomas Huth <thuth@redhat.com>

Jason, since there is no explicit maintainer for util/hexdump.c, could
you maybe take this through your net tree, since this patch touches
net/net.c as well?

 Thomas
Gerd Hoffmann March 30, 2016, 9:27 a.m. UTC | #2
On Fr, 2016-03-25 at 03:42 -0700, Isaac Lozano wrote:
> qemu_hexdump() in util/hexdump.c has been changed to give also include a
> ascii dump of the buffer. Also, calls to hex_dump() in net/net.c have
> been replaced with calls to qemu_hexdump(). This takes care of two misc
> BiteSized Tasks.
> 
> Signed-off-by: Isaac Lozano <109lozanoi@gmail.com>

Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
Jason Wang April 1, 2016, 1:51 a.m. UTC | #3
On 03/30/2016 03:18 PM, Thomas Huth wrote:
> There's a typo in the title: qemu_hexmap should be qemu_hexdump/ instead.
>
> On 25.03.2016 11:42, Isaac Lozano wrote:
>> qemu_hexdump() in util/hexdump.c has been changed to give also include a
>> ascii dump of the buffer. Also, calls to hex_dump() in net/net.c have
>> been replaced with calls to qemu_hexdump(). This takes care of two misc
>> BiteSized Tasks.
>>
>> Signed-off-by: Isaac Lozano <109lozanoi@gmail.com>
>> ---
>>
>> v2: Fixed code-style and made debug line smaller.
>>
>>  net/net.c      | 30 +-----------------------------
>>  util/hexdump.c | 33 ++++++++++++++++++++++-----------
>>  2 files changed, 23 insertions(+), 40 deletions(-)
> [...]
>
> Code looks fine now, thanks for taking care of this!
>
> Reviewed-by: Thomas Huth <thuth@redhat.com>
>
> Jason, since there is no explicit maintainer for util/hexdump.c, could
> you maybe take this through your net tree, since this patch touches
> net/net.c as well?

Yes, applied in -net.

Thanks

>
>  Thomas
>
>
diff mbox

Patch

diff --git a/net/net.c b/net/net.c
index 1a78edf..9bc9ad3 100644
--- a/net/net.c
+++ b/net/net.c
@@ -79,34 +79,6 @@  int default_net = 1;
 /***********************************************************/
 /* network device redirectors */
 
-#if defined(DEBUG_NET)
-static void hex_dump(FILE *f, const uint8_t *buf, int size)
-{
-    int len, i, j, c;
-
-    for(i=0;i<size;i+=16) {
-        len = size - i;
-        if (len > 16)
-            len = 16;
-        fprintf(f, "%08x ", i);
-        for(j=0;j<16;j++) {
-            if (j < len)
-                fprintf(f, " %02x", buf[i+j]);
-            else
-                fprintf(f, "   ");
-        }
-        fprintf(f, " ");
-        for(j=0;j<len;j++) {
-            c = buf[i+j];
-            if (c < ' ' || c > '~')
-                c = '.';
-            fprintf(f, "%c", c);
-        }
-        fprintf(f, "\n");
-    }
-}
-#endif
-
 static int get_str_sep(char *buf, int buf_size, const char **pp, int sep)
 {
     const char *p, *p1;
@@ -662,7 +634,7 @@  static ssize_t qemu_send_packet_async_with_flags(NetClientState *sender,
 
 #ifdef DEBUG_NET
     printf("qemu_send_packet_async:\n");
-    hex_dump(stdout, buf, size);
+    qemu_hexdump((const char *)buf, stdout, "net", size);
 #endif
 
     if (sender->link_down || !sender->peer) {
diff --git a/util/hexdump.c b/util/hexdump.c
index 1d9c129..f879ff0 100644
--- a/util/hexdump.c
+++ b/util/hexdump.c
@@ -18,21 +18,32 @@ 
 
 void qemu_hexdump(const char *buf, FILE *fp, const char *prefix, size_t size)
 {
-    unsigned int b;
+    unsigned int b, len, i, c;
 
-    for (b = 0; b < size; b++) {
-        if ((b % 16) == 0) {
-            fprintf(fp, "%s: %04x:", prefix, b);
+    for (b = 0; b < size; b += 16) {
+        len = size - b;
+        if (len > 16) {
+            len = 16;
         }
-        if ((b % 4) == 0) {
-            fprintf(fp, " ");
+        fprintf(fp, "%s: %04x:", prefix, b);
+        for (i = 0; i < 16; i++) {
+            if ((i % 4) == 0) {
+                fprintf(fp, " ");
+            }
+            if (i < len) {
+                fprintf(fp, " %02x", (unsigned char)buf[b + i]);
+            } else {
+                fprintf(fp, "   ");
+            }
         }
-        fprintf(fp, " %02x", (unsigned char)buf[b]);
-        if ((b % 16) == 15) {
-            fprintf(fp, "\n");
+        fprintf(fp, " ");
+        for (i = 0; i < len; i++) {
+            c = buf[b + i];
+            if (c < ' ' || c > '~') {
+                c = '.';
+            }
+            fprintf(fp, "%c", c);
         }
-    }
-    if ((b % 16) != 0) {
         fprintf(fp, "\n");
     }
 }