[PATCH v3 08/27] hw/scsi/scsi-disk: Use qemu_hexdump_line to avoid sprintf

[Richard Henderson <richard.henderson@linaro.org>]

From: Philippe Mathieu-Daudé <philmd@linaro.org>

sprintf() is deprecated on Darwin since macOS 13.0 / XCode 14.1.
Using qemu_hexdump_line both fixes the deprecation warning and
simplifies the code base.

Note that this drops the "0x" prefix to every byte, which should
be of no consequence to tracing.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 hw/scsi/scsi-disk.c | 13 +++----------
 1 file changed, 3 insertions(+), 10 deletions(-)

diff --git a/hw/scsi/scsi-disk.c b/hw/scsi/scsi-disk.c
index 4bd7af9d0c..f386a2f01c 100644
--- a/hw/scsi/scsi-disk.c
+++ b/hw/scsi/scsi-disk.c
@@ -2648,19 +2648,12 @@ static const SCSIReqOps *const scsi_disk_reqops_dispatch[256] = {
 
 static void scsi_disk_new_request_dump(uint32_t lun, uint32_t tag, uint8_t *buf)
 {
-    int i;
     int len = scsi_cdb_length(buf);
-    char *line_buffer, *p;
+    g_autoptr(GString) str = NULL;
 
     assert(len > 0 && len <= 16);
-    line_buffer = g_malloc(len * 5 + 1);
-
-    for (i = 0, p = line_buffer; i < len; i++) {
-        p += sprintf(p, " 0x%02x", buf[i]);
-    }
-    trace_scsi_disk_new_request(lun, tag, line_buffer);
-
-    g_free(line_buffer);
+    str = qemu_hexdump_line(NULL, buf, len, 1, 0);
+    trace_scsi_disk_new_request(lun, tag, str->str);
 }
 
 static SCSIRequest *scsi_new_request(SCSIDevice *d, uint32_t tag, uint32_t lun,
-- 
2.34.1