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Fix some strlcpy() misuse that cuts off the last character of the copied

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string.
Clean up some log messages.
This commit is contained in:
Nicholas J. Kain
2010-11-12 17:24:54 -05:00
parent f4a00f3826
commit 9d7ad2f11c
3 changed files with 9 additions and 10 deletions
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9
ndhc/clientpacket.c
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@@ -178,10 +178,10 @@ int get_raw_packet(struct dhcpMessage *payload, int fd)
uint16_t check;
ssize_t len = 0;
const ssize_t wanted = sizeof(struct iphdr) + sizeof(struct udphdr);
const ssize_t header_size = sizeof(struct iphdr) + sizeof(struct udphdr);
memset(&packet, 0, sizeof(struct udp_dhcp_packet));
while (len < wanted) {
while (len < header_size) {
ssize_t r = read(fd, &packet + len,
sizeof(struct udp_dhcp_packet) - len);
if (r == 0)
@@ -205,8 +205,7 @@ int get_raw_packet(struct dhcpMessage *payload, int fd)
return -2;
}
log_line("len: %d wanted: %d", len, wanted);
if (len < wanted) {
if (len < header_size) {
log_line("Message too short to contain IP + UDP headers, ignoring");
sleep(1);
return -2;
@@ -284,6 +283,6 @@ int get_raw_packet(struct dhcpMessage *payload, int fd)
log_error("received bogus message (bad magic) -- ignoring");
return -2;
}
log_line("oooooh!!! got some!");
log_line("Received valid DHCP message.");
return len - (sizeof(packet.ip) + sizeof(packet.udp));
}

2
ndhc/dhcpc.c
View File

@@ -295,8 +295,6 @@ static void handle_packet(void)
struct in_addr temp_addr;
struct dhcpMessage packet;
log_line("got a packet");
if (listen_mode == LISTEN_KERNEL)
len = get_packet(&packet, fd);
else