On make make install, building application getting ISO c does not permit named variadic
Question
/.configure, make and make install
This is code for status.h
#define DEBUG(level, args...) debug(level, __location__, __FUNCTION__, args)
typedef enum {
ST_OK = 0,
ST_GENERAL_FAILURE = 1,
ST_NO_SUCH_OBJECT = 2,
ST_READ_ERROR = 3,
ST_WRITE_ERROR = 4,
ST_PARSE_ERROR = 5,
ST_LOG_ERR = 117,
ST_DATABASE_FAILURE = 118,
ST_BIND_FAILURE = 119,
ST_SOCKET_FAILURE = 120,
ST_CONFIGURATION_ERROR = 121,
ST_ASSERTION_FAILED = 122,
ST_NOT_IMPLEMENTED = 123,
ST_OUT_OF_MEMORY = 124,
} STATUS;
#define NO_MEM_RETURN(ptr) {if (ptr == NULL) { DEBUG(0, "Out of memory"); return ST_OUT_OF_MEMORY; }}
#define NO_MEM_RETURN_RV(ptr, rv) {if (ptr == NULL) { DEBUG(0, "Out of memory"); return rv; }}
STATUS debug(int loglevel, const char *location, const char *function, ...);
This is code for code for chirond.c and currently running on gcc version 4.7.2 (Debian 4.7.2-5)
#include "includes.h"
#include "build/ndr_chiron.h"
#include "build/chiron.h"
#include <nettle/md5.h>
#include <nettle/arcfour.h>
#define CHIRON_PORT "53165"
struct chiron_context {
int clientfd;
struct sockaddr *clientaddr;
char *account_code;
char *device_id;
uint8_t md5_last_out[0x10];
uint8_t rc4key[0x10];
};
/* FIXME This function is a nasty little hack. */
char *ndr_print_chiron_msg_type_enum(TALLOC_CTX *mem_ctx, enum chiron_msg_type msg_type) {
char *ret;
struct ndr_print *ndr_print = talloc_zero(mem_ctx, struct ndr_print);
ndr_print->print = ndr_print_string_helper;
ndr_print->depth = 0;
ndr_print_chiron_msg_type(ndr_print, "", msg_type);
ret = talloc_steal(mem_ctx, ndr_print->private_data);
talloc_free(ndr_print);
return ret;
}
STATUS handle_chiron_msg_response(struct chiron_context *ctx, struct chiron_message *msg) {
#if 0 // TLV, move to ASN.1 parsing
DATA_BLOB crypted, decrypted;
enum ndr_err_code ndr_err;
struct chiron_msg_inner_response *inner_response;
struct arcfour_ctx rc4;
char *deviceid_string;
if (memcmp(msg->msg.response.md5_check, ctx->md5_last_out, 0x10)) {
DEBUG(0, "MD5 does not match!\n");
return ST_PARSE_ERROR;
}
DEBUG(0, "Handling the response");
inner_response = talloc(msg, struct chiron_msg_inner_response);
NO_MEM_RETURN(inner_response);
/* Copy packet to crypted data blob */
crypted.length = msg->msg.response.length - MD5_HASH_LEN;
crypted.data = talloc_memdup(msg, msg->msg.response.payload, crypted.length);
NO_MEM_RETURN(crypted.data);
decrypted.data = talloc_array(msg, uint8_t, crypted.length);
NO_MEM_RETURN(decrypted.data);
decrypted.length = crypted.length;
arcfour_set_key(&rc4, MD5_HASH_LEN, ctx->rc4key);
arcfour_crypt(&rc4, crypted.length, decrypted.data, crypted.data);
/* Parse the packet */
ndr_err = ndr_pull_struct_blob_all(&decrypted, inner_response, inner_response, (ndr_pull_flags_fn_t)ndr_pull_chiron_msg_inner_response);
if (ndr_err != NDR_ERR_SUCCESS) {
DEBUG(0, "Could not parse the inner response");
return ST_PARSE_ERROR;
}
STATUS handle_chiron_msg_response(struct chiron_context *ctx, struct chiron_message *msg) {
#if 0 // TLV, move to ASN.1 parsing
DATA_BLOB crypted, decrypted;
enum ndr_err_code ndr_err;
struct chiron_msg_inner_response *inner_response;
struct arcfour_ctx rc4;
char *deviceid_string;
if (memcmp(msg->msg.response.md5_check, ctx->md5_last_out, 0x10)) {
DEBUG(0, "MD5 does not match!\n");
return ST_PARSE_ERROR;
}
DEBUG(0, "Handling the response");
inner_response = talloc(msg, struct chiron_msg_inner_response);
NO_MEM_RETURN(inner_response);
/* Copy packet to crypted data blob */
crypted.length = msg->msg.response.length - MD5_HASH_LEN;
crypted.data = talloc_memdup(msg, msg->msg.response.payload, crypted.length);
NO_MEM_RETURN(crypted.data);
decrypted.data = talloc_array(msg, uint8_t, crypted.length);
NO_MEM_RETURN(decrypted.data);
decrypted.length = crypted.length;
arcfour_set_key(&rc4, MD5_HASH_LEN, ctx->rc4key);
arcfour_crypt(&rc4, crypted.length, decrypted.data, crypted.data);
/* Parse the packet */
ndr_err = ndr_pull_struct_blob_all(&decrypted, inner_response, inner_response, (ndr_pull_flags_fn_t)ndr_pull_chiron_msg_inner_response);
if (ndr_err != NDR_ERR_SUCCESS) {
DEBUG(0, "Could not parse the inner response");
return ST_PARSE_ERROR;
}
DEBUG(0, "%s", ndr_print_struct_string(msg,(ndr_print_fn_t)ndr_print_chiron_msg_inner_response, "chiron payload", inner_response));
deviceid_string = talloc_zero_array(msg, char, inner_response->dev_len + 1);
memcpy(deviceid_string, inner_response->deviceid, inner_response->dev_len);
DEBUG(0, "Remote device: %s", deviceid_string);
#endif
//send_chiron_msg_key
return ST_OK;
}
STATUS send_chiron_msg_challenge(struct chiron_context *ctx, struct chiron_message *in) {
struct chiron_message *out = talloc_zero(in, struct chiron_message);
struct md5_ctx md5;
uint8_t *md5input;
enum ndr_err_code ndr_err;
DATA_BLOB raw_out;
NO_MEM_RETURN(out);
DEBUG(0, "Sending out a challenge");
out->msg_type = CHIRON_CHALLENGE;
out->seq = in->seq;
out->flags = in->flags;
/* Make an md5 hash of the account code with the seq byte appended. */
md5input = talloc_array(in, uint8_t, in->msg.account.length + 1);
NO_MEM_RETURN(md5input);
memcpy(md5input, in->msg.account.account_code, in->msg.account.length);
md5input[in->msg.account.length] = in->seq;
out->msg.challenge.md5_check = talloc_array(out, uint8_t, MD5_HASH_LEN);
NO_MEM_RETURN(out->msg.challenge.md5_check);
md5_init(&md5);
md5_update(&md5, in->msg.account.length + 1, md5input);
md5_digest(&md5, MD5_HASH_LEN, out->msg.challenge.md5_check);
talloc_free(md5input);
/* FIXME This should be random, but that is annoying for testing purposes */
out->msg.challenge.length = MD5_HASH_LEN + CHALLENGE_LEN;
out->msg.challenge.challenge = talloc_zero_array(out, uint8_t, CHALLENGE_LEN);
NO_MEM_RETURN(out->msg.challenge.challenge);
out->msg.challenge.challenge[0] = 0xd0;
out->msg.challenge.challenge[1] = 0x8b;
out->msg.challenge.challenge[2] = 0x29;
out->msg.challenge.challenge[3] = 0xd3;
out->msg.challenge.challenge[4] = 0x7c;
out->msg.challenge.challenge[5] = 0xfd;
out->msg.challenge.challenge[6] = 0xb5;
out->msg.challenge.challenge[7] = 0xc6;
out->msg.challenge.challenge[8] = 0x1e;
ndr_err = ndr_push_struct_blob(&raw_out, out, out, (ndr_push_flags_fn_t)ndr_push_chiron_message);
if (ndr_err != NDR_ERR_SUCCESS) {
DEBUG(0, "Error writing NDR data blob.");
return ST_WRITE_ERROR;
}
/* Update the md5 check for the next message (last 9 bytes with the seq byte appended). */
md5input = talloc_array(in, uint8_t, CHALLENGE_LEN + 1);
NO_MEM_RETURN(md5input);
memcpy(md5input, &raw_out.data[MSG_HDR_LEN + MD5_HASH_LEN], CHALLENGE_LEN);
md5input[CHALLENGE_LEN] = in->seq;
md5_init(&md5);
md5_update(&md5, CHALLENGE_LEN + 1, md5input);
md5_digest(&md5, MD5_HASH_LEN, ctx->md5_last_out);
/* Update the rc4 crypto key, which is seq+challenge */
md5input[0] = in->seq;
memcpy(&md5input[1], &raw_out.data[MSG_HDR_LEN + MD5_HASH_LEN], CHALLENGE_LEN);
md5_init(&md5);
md5_update(&md5, CHALLENGE_LEN + 1, md5input);
md5_digest(&md5, MD5_HASH_LEN, ctx->rc4key);
DEBUG(0, "The expected md5sum for the next entry is %02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x",
ctx->md5_last_out[0], ctx->md5_last_out[1], ctx->md5_last_out[2], ctx->md5_last_out[3],
ctx->md5_last_out[4], ctx->md5_last_out[5], ctx->md5_last_out[6], ctx->md5_last_out[9],
ctx->md5_last_out[8], ctx->md5_last_out[9], ctx->md5_last_out[10], ctx->md5_last_out[11],
ctx->md5_last_out[12], ctx->md5_last_out[13], ctx->md5_last_out[14], ctx->md5_last_out[15]);
write(ctx->clientfd, raw_out.data, raw_out.length);
talloc_free(out);
return ST_OK;
}
STATUS handle_chiron_msg_account(struct chiron_context *ctx, struct chiron_message *msg) {
ctx->account_code = talloc_memdup(msg, msg->msg.account.account_code, msg->msg.account.length);
NO_MEM_RETURN(ctx->account_code);
send_chiron_msg_challenge(ctx, msg);
return ST_OK;
}
STATUS handle_connection(struct chiron_context *ctx) {
int n;
struct chiron_message *msg;
enum ndr_err_code ndr_err;
char buf[1024]; /* Purposefully static length */
DATA_BLOB data;
STATUS status;
DEBUG(0, "The expected md5sum for the next entry is %02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x",
ctx->md5_last_out[0], ctx->md5_last_out[1], ctx->md5_last_out[2], ctx->md5_last_out[3],
ctx->md5_last_out[4], ctx->md5_last_out[5], ctx->md5_last_out[6], ctx->md5_last_out[9],
ctx->md5_last_out[8], ctx->md5_last_out[9], ctx->md5_last_out[10], ctx->md5_last_out[11],
ctx->md5_last_out[12], ctx->md5_last_out[13], ctx->md5_last_out[14], ctx->md5_last_out[15]);
write(ctx->clientfd, raw_out.data, raw_out.length);
talloc_free(out);
return ST_OK;
}
STATUS handle_chiron_msg_account(struct chiron_context *ctx, struct chiron_message *msg) {
ctx->account_code = talloc_memdup(msg, msg->msg.account.account_code, msg->msg.account.length);
NO_MEM_RETURN(ctx->account_code);
send_chiron_msg_challenge(ctx, msg);
return ST_OK;
}
STATUS handle_connection(struct chiron_context *ctx) {
int n;
struct chiron_message *msg;
enum ndr_err_code ndr_err;
char buf[1024]; /* Purposefully static length */
DATA_BLOB data;
STATUS status;
while ((n = read(ctx->clientfd, buf, sizeof(buf)))) {
if (n < 0) {
DEBUG( 0, "Error when storing packet in buffer!");
return ST_PARSE_ERROR;
} else if (n == sizeof(buf)) {
DEBUG(0, "Maximum packet size exceeded!");
return ST_PARSE_ERROR;
}
msg = talloc(ctx, struct chiron_message);
NO_MEM_RETURN(msg);
/* Copy packet to data blob */
data.length = n;
data.data = talloc_memdup(msg, buf, n);
NO_MEM_RETURN(data.data);
/* Parse the packet */
ndr_err = ndr_pull_struct_blob_all(&data, msg, msg, (ndr_pull_flags_fn_t)ndr_pull_chiron_message);
if (ndr_err != NDR_ERR_SUCCESS) {
DEBUG(0, "Could not parse this message");
return ST_PARSE_ERROR;
}
DEBUG(0, "%s", ndr_print_struct_string(msg,(ndr_print_fn_t)ndr_print_chiron_message, "chiron message", msg));
switch (msg->msg_type) {
case CHIRON_ACCOUNT:
status = handle_chiron_msg_account(ctx, msg);
break;
case CHIRON_RESPONSE:
status = handle_chiron_msg_response(ctx, msg);
break;
default:
DEBUG(0, "Got unexpected message type: %s.",
ndr_print_chiron_msg_type_enum(msg, msg->msg_type));
break;
}
if (status != ST_OK) {
return status;
}
talloc_free(msg);
}
return ST_OK;
}
static STATUS daemonize(char *pid_file) {
FILE *pidfile;
pid_t pid;
fclose(stdin);
fclose(stdout);
fclose(stderr);
if ((pid = fork())) {
/* Write PID file */
pidfile = fopen(pid_file, "w");
if (pidfile < 0)
exit(1);
fprintf(pidfile, "%d\n", pid);
fclose(pidfile);
exit(0);
}
return ST_OK;
}
static STATUS listen_server(TALLOC_CTX *mem_ctx, const char *bindaddr, const char *bindport, const char *protocol, STATUS (*dispatcher)(struct chiron_context *)) {
int sock;
socklen_t clientlen;
struct addrinfo hints, *server, *first_server;
memset(&hints, 0, sizeof(struct addrinfo));
hints.ai_flags = AI_PASSIVE;
getaddrinfo(bindaddr, bindport, &hints, &server);
first_server = server;
while (server) {
sock = socket(server->ai_family, SOCK_STREAM, 0);
if (sock >= 0) {
int optval = 1;
setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, &optval, sizeof(optval));
if (bind(sock, server->ai_addr, server->ai_addrlen) < 0) {
close(sock);
sock = -1;
} else {
{
break;
}
}
server = server->ai_next;
}
if (sock < 0) {
DEBUG(0, "Could not create socket in server");
return ST_SOCKET_FAILURE;
}
listen(sock, 128);
freeaddrinfo(first_server);
DEBUG(0, "Started %s and waiting for Chiron messages on port %s",
get_process_name(), CHIRON_PORT);
/*
* Wait for connections
*/
clientlen = sizeof(struct addrinfo);
while (1) {
int clientfd;
struct sockaddr_storage clientaddr;
char clienthost[NI_MAXHOST];
char clientservice[NI_MAXSERV];
clientfd = accept(sock, (struct sockaddr *)&clientaddr, &clientlen);
getnameinfo((struct sockaddr *)&clientaddr, clientlen,
clienthost, sizeof(clienthost),
clientservice, sizeof(clientservice),
NI_NUMERICHOST | NI_NUMERICSERV);
DEBUG(3, "Received connection from %s:%s", clienthost, clientservice);
//if (fork()) {
// continue;
//} else {
{
struct chiron_context *client_ctx = talloc_zero(mem_ctx, struct chiron_context);
NO_MEM_RETURN(client_ctx);
client_ctx->clientaddr = (struct sockaddr *)&clientaddr;
client_ctx->clientfd = clientfd;
dispatcher(client_ctx);
shutdown(client_ctx->clientfd, SHUT_RDWR);
close(client_ctx->clientfd);
talloc_free(client_ctx);
exit(0);
}
}
shutdown(sock, SHUT_RDWR);
close(sock);
}
int main (int argc, char **argv) {
TALLOC_CTX *mem_ctx;
STATUS rv;
const configuration *conf;
set_process_name(argv[0]);
/* Initialize a memory context */
mem_ctx = talloc_init("chirond");
/* Read the configuration file */
rv = read_configuration_file(mem_ctx);
if (rv != ST_OK)
return rv;
conf = get_conf();
/* Daemonize if we're not supposed to run in foreground mode */
if (!conf->foreground) {
daemonize(conf->pid_file);
}
/*
* Open up a TCP socket the Chiron port
*/
listen_server(mem_ctx, "::", CHIRON_PORT, "tcp", handle_connection);
return 0;
}
getting error on make, ISO c does not permit named variadic macros on ubutnu
In file included from ../includes.h:43:0,
from ../chirond.c:18:
../status.h:19:26: error: ISO C does not permit named variadic macros [-Werror=variadic-macros]
1 answers
solution1
0 2016-02-25 09:06:10
Have to upgrade GCC to 4.9 and if you are to lower version using follow instructions on this page.
put this lines to avoid warnings
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wvariadic-macros"
// Your code and/or include files
// (No variadic warnings here)
#pragma GCC diagnostic pop
if you have so much warnings remove -werror from CFLAGS. you can able to build.
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