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net: Move NetClientState.info_str to dynamic allocations

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The info_str field of the NetClientState structure is static and has a size
of 256 bytes. This amount is often unclaimed, and the field itself is used
exclusively for HMP "info network".

The patch translates info_str to dynamic memory allocation.

This action is also allows us to painlessly discard usage of this field
for backend devices.

Signed-off-by: Alexey Kirillov <lekiravi@yandex-team.ru>
Signed-off-by: Jason Wang <jasowang@redhat.com>
This commit is contained in:
Alexey Kirillov
2021-03-03 12:59:08 +03:00
committed by Jason Wang
parent 3c3b656885
commit 59b5437eb7
11 changed files with 47 additions and 49 deletions
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3
net/tap-win32.c
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@@ -787,8 +787,7 @@ static int tap_win32_init(NetClientState *peer, const char *model,
stored->has_ifname = true;
stored->ifname = g_strdup(ifname);
snprintf(s->nc.info_str, sizeof(s->nc.info_str),
"tap: ifname=%s", ifname);
s->nc.info_str = g_strdup_printf("tap: ifname=%s", ifname);
s->handle = handle;