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network: use temporary buffer for safety

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This commit is contained in:
Yu Watanabe 2021-02-18 03:27:35 +09:00
parent 5380707aba
commit 94af46fc66
1 changed files with 3 additions and 1 deletions
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4
src/network/networkd-address.c
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@ -1457,6 +1457,7 @@ int config_parse_broadcast(
Network *network = userdata;
_cleanup_(address_free_or_set_invalidp) Address *n = NULL;
union in_addr_union u;
int r;
assert(filename);
@ -1480,13 +1481,14 @@ int config_parse_broadcast(
return 0;
}
r = in_addr_from_string(AF_INET, rvalue, (union in_addr_union*) &n->broadcast);
r = in_addr_from_string(AF_INET, rvalue, &u);
if (r < 0) {
log_syntax(unit, LOG_WARNING, filename, line, r,
"Broadcast is invalid, ignoring assignment: %s", rvalue);
return 0;
}
n->broadcast = u.in;
n->family = AF_INET;
TAKE_PTR(n);