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path: root/dhcp.c
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Diffstat (limited to 'dhcp.c')
-rw-r--r--dhcp.c14
1 files changed, 7 insertions, 7 deletions
diff --git a/dhcp.c b/dhcp.c
index ab1249c..197a515 100644
--- a/dhcp.c
+++ b/dhcp.c
@@ -40,9 +40,9 @@
struct opt {
int sent;
int slen;
- unsigned char s[255];
+ uint8_t s[255];
int clen;
- unsigned char c[255];
+ uint8_t c[255];
};
static struct opt opts[255];
@@ -312,9 +312,9 @@ int dhcp(struct ctx *c, struct ethhdr *eh, size_t len)
m->chaddr[3], m->chaddr[4], m->chaddr[5]);
m->yiaddr = c->addr4;
- *(unsigned long *)opts[1].s = c->mask4;
- *(unsigned long *)opts[3].s = c->gw4;
- *(unsigned long *)opts[54].s = c->gw4;
+ memcpy(opts[1].s, &c->mask4, sizeof(c->mask4));
+ memcpy(opts[3].s, &c->gw4, sizeof(c->gw4));
+ memcpy(opts[54].s, &c->gw4, sizeof(c->gw4));
/* If the gateway is not on the assigned subnet, send an option 121
* (Classless Static Routing) adding a dummy route to it.
@@ -323,8 +323,8 @@ int dhcp(struct ctx *c, struct ethhdr *eh, size_t len)
/* a.b.c.d/32:0.0.0.0, 0:a.b.c.d */
opts[121].slen = 14;
opts[121].s[0] = 32;
- *(unsigned long *)&opts[121].s[1] = c->gw4;
- *(unsigned long *)&opts[121].s[10] = c->gw4;
+ memcpy(opts[121].s + 1, &c->gw4, sizeof(c->gw4));
+ memcpy(opts[121].s + 10, &c->gw4, sizeof(c->gw4));
}
if (c->mtu != -1) {