/*
- * Copyright (C) 2012 Thadeu Lima de Souza Cascardo <cascardo@minaslivre.org>
+ * Copyright (C) 2012-2013 Thadeu Lima de Souza Cascardo <cascardo@minaslivre.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
+#include <netdb.h>
#include <gnutls/gnutls.h>
#include <zlib.h>
+#include "decfile.h"
+#include "rnet_message.h"
+#include "rnet_encode.h"
static void * get_creds(char *certfile)
{
zstrm.opaque = Z_NULL;
if ((r = inflateInit(&zstrm)) != Z_OK)
return -1;
- *olen = (buffer[3] << 8 & buffer[4]);
+ *olen = (buffer[3] << 8 | buffer[4]);
*out = malloc(*olen);
if (!out) {
inflateEnd(&zstrm);
return 0;
}
-int main(int argc, char **argv)
+#define RNET_ADDRESS "receitanet.receita.fazenda.gov.br"
+
+static int connect_rnet(int *c)
{
+ struct addrinfo *addresses;
+ struct addrinfo *addr;
+ struct addrinfo hint;
struct sockaddr_in saddr;
- int c;
int r;
- char buffer[1024];
+ int fd = *c = -1;
+ int i;
+ memset(&hint, 0, sizeof(hint));
+ hint.ai_family = AF_UNSPEC;
+ hint.ai_socktype = SOCK_STREAM;
+ hint.ai_protocol = IPPROTO_TCP;
+ hint.ai_flags = AI_ADDRCONFIG;
+ r = getaddrinfo(RNET_ADDRESS, "3456", &hint, &addresses);
+ if (r) {
+ return r;
+ }
+ for (addr = addresses; addr != NULL; addr = addr->ai_next) {
+ fd = socket(addr->ai_family, addr->ai_socktype,
+ addr->ai_protocol);
+ if (fd >= 0)
+ if (!(r = connect(fd, addr->ai_addr,
+ addr->ai_addrlen)))
+ break;
+ close(fd);
+ fd = -1;
+ }
+ freeaddrinfo(addresses);
+ *c = fd;
+ if (fd == -1)
+ return EAI_SYSTEM;
+ return 0;
+}
+
+static int handshake(int c)
+{
+ char buffer[16];
+ int r;
+ buffer[0] = 1;
+ write(c, buffer, 1);
+ write(c, "00000000000000", 14);
+ r = read(c, buffer, 1);
+ if (r != 1 && buffer[0] != 'E')
+ return -1;
+ r = read(c, buffer, 14);
+ if (r != 14)
+ return -1;
+ return 0;
+}
+
+static void usage(void)
+{
+ fprintf(stderr, "rnetclient [filename]\n");
+ exit(1);
+}
+
+static int rnet_send(gnutls_session_t session, char *buffer, size_t len)
+{
+ char *out;
+ size_t olen;
+ deflateRecord(buffer, len, &out, &olen);
+ gnutls_record_send(session, out, olen);
+ free(out);
+ return 0;
+}
+
+static int rnet_recv(gnutls_session_t session, struct rnet_message **message)
+{
char *out;
size_t olen;
+ int r;
+ char *buffer;
+ size_t len;
+ rnet_message_expand(message, 6);
+ buffer = (*message)->buffer;
+ r = gnutls_record_recv(session, buffer, 6);
+ len = (buffer[1] << 8 | buffer[2]);
+ rnet_message_expand(message, len);
+ buffer = (*message)->buffer + 6;
+ r = gnutls_record_recv(session, buffer, len);
+ inflateRecord(buffer - 6, len + 6, &out, &olen);
+ rnet_message_del(*message);
+ *message = NULL;
+ rnet_message_expand(message, olen);
+ memcpy((*message)->buffer, out, olen);
+ (*message)->len = olen;
+ free(out);
+ return 0;
+}
+
+int main(int argc, char **argv)
+{
+ int c;
+ int r;
+ struct rnet_decfile *decfile;
+ struct rnet_message *message = NULL;
gnutls_session_t session;
+ int finish = 0;
+
+ if (argc < 2) {
+ usage();
+ }
+
+ decfile = rnet_decfile_open(argv[1]);
+ if (!decfile) {
+ fprintf(stderr, "could not parse %s: %s\n", argv[1], strerror(errno));
+ exit(1);
+ }
+
gnutls_global_init();
+
session_new(&session);
- c = socket(PF_INET, SOCK_STREAM, 0);
- saddr.sin_family = AF_INET;
- saddr.sin_port = htons(3456);
- saddr.sin_addr.s_addr = inet_addr("161.148.185.11");
- r = connect(c, (struct sockaddr *) &saddr, sizeof(saddr));
- if (r < 0) {
+ r = connect_rnet(&c);
+ if (r) {
fprintf(stderr, "error connecting to server: %s\n",
- strerror(errno));
+ r == EAI_SYSTEM ? strerror(errno) : gai_strerror(r));
exit(1);
}
gnutls_transport_set_ptr(session, (gnutls_transport_ptr_t) c);
- buffer[0] = 1;
- write(c, buffer, 1);
- write(c, "00000000000000", 14);
- r = read(c, buffer, 1);
- if (r != 1 && buffer[0] != 'E')
- exit(1);
- r = read(c, buffer, 14);
- if (r != 14)
+ r = handshake(c);
+ if (r < 0) {
exit(1);
+ }
if ((r = gnutls_handshake(session)) < 0)
fprintf(stderr, "error in handshake: %s\n",
gnutls_strerror(r));
- else
- fprintf(stderr, "handshake ok\n");
- r = read(0, buffer, sizeof(buffer));
- deflateRecord(buffer, r, &out, &olen);
- gnutls_record_send(session, out, olen);
- free(out);
- while ((r = gnutls_record_recv(session, buffer, sizeof(buffer))) > 0)
- write(1, buffer, r);
+
+ rnet_encode(decfile, &message);
+ rnet_send(session, message->buffer, message->len);
+ rnet_message_del(message);
+
+ message = NULL;
+ r = rnet_recv(session, &message);
+ if (r || !message || message->len == 0) {
+ fprintf(stderr, "error when receiving response\n");
+ goto out;
+ }
+ write(1, message->buffer, message->len);
+ switch (message->buffer[0]) {
+ case 1: /* go ahead */
+ break;
+ case 3: /* error */
+ finish = 1;
+ break;
+ case 2:
+ case 4:
+ case 5:
+ finish = 1;
+ break;
+ }
+ rnet_message_del(message);
+
+ if (finish)
+ goto out;
+
+ message = rnet_decfile_get_file(decfile);
+ rnet_send(session, message->buffer, message->len);
+
+ message = NULL;
+ r = rnet_recv(session, &message);
+ if (r || !message || message->len == 0) {
+ fprintf(stderr, "error when receiving response\n");
+ goto out;
+ }
+ write(1, message->buffer, message->len);
+ switch (message->buffer[0]) {
+ case 3: /* error */
+ finish = 1;
+ break;
+ case 2:
+ case 4:
+ case 5:
+ case 1:
+ finish = 1;
+ break;
+ }
+
+out:
+ gnutls_bye(session, GNUTLS_SHUT_RDWR);
close(c);
+ rnet_decfile_close(decfile);
gnutls_global_deinit();
+
return 0;
}
projects / cascardo / libreceita.git / blobdiff