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Pretty-print message codes

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This commit is contained in:
Joseph C. Lehner 2016-02-13 23:47:07 +01:00
parent 02eae02343
commit 34698c8813
1 changed files with 25 additions and 3 deletions
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28
nmrp.c
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@ -95,6 +95,27 @@ struct nmrp_pkt {
struct nmrp_msg msg;
} PACKED;
static const char *msg_code_str(uint16_t code)
{
#define CASE_CODE(x) case NMRP_C_ ## x: return #x
static char buf[16];
switch (code) {
CASE_CODE(ADVERTISE);
CASE_CODE(CONF_REQ);
CASE_CODE(CONF_ACK);
CASE_CODE(CLOSE_REQ);
CASE_CODE(CLOSE_ACK);
CASE_CODE(KEEP_ALIVE_REQ);
CASE_CODE(KEEP_ALIVE_ACK);
CASE_CODE(TFTP_UL_REQ);
default:
snprintf(buf, sizeof(buf), "%04x", code);
return buf;
}
#undef CASE_CODE
}
static void msg_update_len(struct nmrp_msg *msg)
{
uint32_t i = 0;
@ -439,8 +460,8 @@ int nmrp_do(struct nmrpd_args *args)
do {
if (expect != NMRP_C_NONE && rx.msg.code != expect) {
fprintf(stderr, "Received code 0x%02x while waiting for 0x%02x!\n",
rx.msg.code, expect);
fprintf(stderr, "Received %s while waiting for %s!\n",
msg_code_str(rx.msg.code), msg_code_str(expect));
}
tx.msg.code = NMRP_C_NONE;
@ -596,7 +617,8 @@ int nmrp_do(struct nmrpd_args *args)
status = pkt_recv(sock, &rx);
if (status) {
if (status == 2) {
fprintf(stderr, "Timeout while waiting for 0x%02x.\n", expect);
fprintf(stderr, "Timeout while waiting for %s.\n",
msg_code_str(expect));
}
goto out;
}