[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-devel] [PATCH 02/16] Add iov_hexdump()
From: |
Gerd Hoffmann |
Subject: |
[Qemu-devel] [PATCH 02/16] Add iov_hexdump() |
Date: |
Thu, 4 Aug 2011 17:10:12 +0200 |
Useful for debugging purposes.
Signed-off-by: Gerd Hoffmann <address@hidden>
---
iov.c | 31 +++++++++++++++++++++++++++++++
iov.h | 2 ++
2 files changed, 33 insertions(+), 0 deletions(-)
diff --git a/iov.c b/iov.c
index 1e02791..60553c7 100644
--- a/iov.c
+++ b/iov.c
@@ -73,3 +73,34 @@ size_t iov_size(const struct iovec *iov, const unsigned int
iov_cnt)
}
return len;
}
+
+void iov_hexdump(const struct iovec *iov, const unsigned int iov_cnt,
+ FILE *fp, const char *prefix, size_t limit)
+{
+ unsigned int i, v, b;
+ uint8_t *c;
+
+ c = iov[0].iov_base;
+ for (i = 0, v = 0, b = 0; b < limit; i++, b++) {
+ if (i == iov[v].iov_len) {
+ i = 0; v++;
+ if (v == iov_cnt) {
+ break;
+ }
+ c = iov[v].iov_base;
+ }
+ if ((b % 16) == 0) {
+ fprintf(fp, "%s: %04x:", prefix, b);
+ }
+ if ((b % 4) == 0) {
+ fprintf(fp, " ");
+ }
+ fprintf(fp, " %02x", c[i]);
+ if ((b % 16) == 15) {
+ fprintf(fp, "\n");
+ }
+ }
+ if ((b % 16) != 0) {
+ fprintf(fp, "\n");
+ }
+}
diff --git a/iov.h b/iov.h
index 110f67a..c2c5b39 100644
--- a/iov.h
+++ b/iov.h
@@ -17,3 +17,5 @@ size_t iov_from_buf(struct iovec *iov, unsigned int iov_cnt,
size_t iov_to_buf(const struct iovec *iov, const unsigned int iov_cnt,
void *buf, size_t iov_off, size_t size);
size_t iov_size(const struct iovec *iov, const unsigned int iov_cnt);
+void iov_hexdump(const struct iovec *iov, const unsigned int iov_cnt,
+ FILE *fp, const char *prefix, size_t limit);
--
1.7.1
- [Qemu-devel] [PULL] usb patch queue: iovecs, hid split, misc fixes, Gerd Hoffmann, 2011/08/04
- [Qemu-devel] [PATCH 02/16] Add iov_hexdump(),
Gerd Hoffmann <=
- [Qemu-devel] [PATCH 04/16] move QEMUSGList typedef, Gerd Hoffmann, 2011/08/04
- [Qemu-devel] [PATCH 07/16] usb-host: iovec support, Gerd Hoffmann, 2011/08/04
- [Qemu-devel] [PATCH 06/16] usb-serial: iovec support, Gerd Hoffmann, 2011/08/04
- [Qemu-devel] [PATCH 08/16] usb-storage: iovec support, Gerd Hoffmann, 2011/08/04
- [Qemu-devel] [PATCH 03/16] Add iov_clear(), Gerd Hoffmann, 2011/08/04
- [Qemu-devel] [PATCH 12/16] usb-hid: add event callback, Gerd Hoffmann, 2011/08/04
- [Qemu-devel] [PATCH 13/16] usb-hid: add hid_has_events(), Gerd Hoffmann, 2011/08/04