bti.c

   1 /*
   2  * Copyright (C) 2008 Greg Kroah-Hartman <greg@kroah.com>
   3  *
   4  * This program is free software; you can redistribute it and/or modify it
   5  * under the terms of the GNU General Public License as published by the
   6  * Free Software Foundation version 2 of the License.
   7  *
   8  * This program is distributed in the hope that it will be useful, but
   9  * WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  11  * General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public License along
  14  * with this program; if not, write to the Free Software Foundation, Inc.,
  15  * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  16  */
  17
  18 #include <stdio.h>
  19 #include <stdlib.h>
  20 #include <stddef.h>
  21 #include <string.h>
  22 #include <getopt.h>
  23 #include <errno.h>
  24 #include <ctype.h>
  25 #include <fcntl.h>
  26 #include <unistd.h>
  27 #include <time.h>
  28 #include <sys/stat.h>
  29 #include <curl/curl.h>
  30 #include <readline/readline.h>
  31 #include <libxml/xmlmemory.h>
  32 #include <libxml/parser.h>
  33 #include <libxml/tree.h>
  34 #include "bti_version.h"
  35
  36
  37 #define zalloc(size)    calloc(size, 1)
  38
  39 #define dbg(format, arg...)                                             \
  40         do {                                                            \
  41                 if (debug)                                              \
  42                         printf("%s: " format , __func__ , ## arg);      \
  43         } while (0)
  44
  45
  46 static int debug;
  47
  48 enum host {
  49         HOST_TWITTER = 0,
  50         HOST_IDENTICA = 1,
  51 };
  52
  53 enum action {
  54         ACTION_UPDATE = 0,
  55         ACTION_FRIENDS = 1,
  56         ACTION_USER = 2,
  57         ACTION_REPLIES = 4,
  58         ACTION_PUBLIC = 8
  59 };
  60
  61 struct session {
  62         char *password;
  63         char *account;
  64         char *tweet;
  65         char *proxy;
  66         char *time;
  67         char *homedir;
  68         char *logfile;
  69         char *user;
  70         int bash;
  71         enum host host;
  72         enum action action;
  73 };
  74
  75 struct bti_curl_buffer {
  76         char *data;
  77         enum action action;
  78         int length;
  79 };
  80
  81 static void display_help(void)
  82 {
  83         fprintf(stdout, "bti - send tweet to twitter\n");
  84         fprintf(stdout, "Version: " BTI_VERSION "\n");
  85         fprintf(stdout, "Usage:\n");
  86         fprintf(stdout, "  bti [options]\n");
  87         fprintf(stdout, "options are:\n");
  88         fprintf(stdout, "  --account accountname\n");
  89         fprintf(stdout, "  --password password\n");
  90         fprintf(stdout, "  --proxy PROXY:PORT\n");
  91         fprintf(stdout, "  --host HOST\n");
  92         fprintf(stdout, "  --logfile logfile\n");
  93         fprintf(stdout, "  --bash\n");
  94         fprintf(stdout, "  --action action\n");
  95         fprintf(stdout, "  --user screenname\n");
  96         fprintf(stdout, "  --debug\n");
  97         fprintf(stdout, "  --version\n");
  98         fprintf(stdout, "  --help\n");
  99 }
 100
 101 static void display_version(void)
 102 {
 103         fprintf(stdout, "bti - version %s\n", BTI_VERSION);
 104 }
 105
 106 static struct session *session_alloc(void)
 107 {
 108         struct session *session;
 109
 110         session = zalloc(sizeof(*session));
 111         if (!session)
 112                 return NULL;
 113         return session;
 114 }
 115
 116 static void session_free(struct session *session)
 117 {
 118         if (!session)
 119                 return;
 120         free(session->password);
 121         free(session->account);
 122         free(session->tweet);
 123         free(session->proxy);
 124         free(session->time);
 125         free(session->homedir);
 126         free(session->user);
 127         free(session);
 128 }
 129
 130 static struct bti_curl_buffer *bti_curl_buffer_alloc(enum action action)
 131 {
 132         struct bti_curl_buffer *buffer;
 133
 134         buffer = zalloc(sizeof(*buffer));
 135         if (!buffer)
 136                 return NULL;
 137
 138         /* start out with a data buffer of 1 byte to
 139          * make the buffer fill logic simpler */
 140         buffer->data = zalloc(1);
 141         if (!buffer->data) {
 142                 free(buffer);
 143                 return NULL;
 144         }
 145         buffer->length = 0;
 146         buffer->action = action;
 147         return buffer;
 148 }
 149
 150 static void bti_curl_buffer_free(struct bti_curl_buffer *buffer)
 151 {
 152         if (!buffer)
 153                 return;
 154         free(buffer->data);
 155         free(buffer);
 156 }
 157
 158 static const char *twitter_user_url    = "http://twitter.com/statuses/user_timeline/";
 159 static const char *twitter_update_url  = "https://twitter.com/statuses/update.xml";
 160 static const char *twitter_public_url  = "http://twitter.com/statuses/public_timeline.xml";
 161 static const char *twitter_friends_url = "https://twitter.com/statuses/friends_timeline.xml";
 162 static const char *twitter_replies_url = "http://twitter.com/statuses/replies.xml";
 163
 164 static const char *identica_user_url    = "http://identi.ca/api/statuses/user_timeline/";
 165 static const char *identica_update_url  = "http://identi.ca/api/statuses/update.xml";
 166 static const char *identica_public_url  = "http://identi.ca/api/statuses/public_timeline.xml";
 167 static const char *identica_friends_url = "http://identi.ca/api/statuses/friends_timeline.xml";
 168 static const char *identica_replies_url = "http://identi.ca/api/statuses/replies.xml";
 169
 170 static CURL *curl_init(void)
 171 {
 172         CURL *curl;
 173
 174         curl = curl_easy_init();
 175         if (!curl) {
 176                 fprintf(stderr, "Can not init CURL!\n");
 177                 return NULL;
 178         }
 179         /* some ssl sanity checks on the connection we are making */
 180         curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0);
 181         curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, 0);
 182         return curl;
 183 }
 184
 185 void parse_statuses(xmlDocPtr doc, xmlNodePtr current)
 186 {
 187         xmlChar *text = NULL;
 188         xmlChar *user = NULL;
 189         xmlNodePtr userinfo;
 190
 191         current = current->xmlChildrenNode;
 192         while (current != NULL) {
 193                 if (current->type == XML_ELEMENT_NODE) {
 194                         if (!xmlStrcmp(current->name, (const xmlChar *)"text"))
 195                                 text = xmlNodeListGetString(doc, current->xmlChildrenNode, 1);
 196                         if (!xmlStrcmp(current->name, (const xmlChar *)"user")) {
 197                                 userinfo = current->xmlChildrenNode;
 198                                 while (userinfo != NULL) {
 199                                         if ((!xmlStrcmp(userinfo->name, (const xmlChar *)"screen_name"))) {
 200                                                 if (user)
 201                                                         xmlFree(user);
 202                                                 user = xmlNodeListGetString(doc, userinfo->xmlChildrenNode, 1);
 203                                         }
 204                                         userinfo = userinfo->next;
 205                                 }
 206                         }
 207                         if (user && text) {
 208                                 printf("[%s] %s\n", user, text);
 209                                 xmlFree(user);
 210                                 xmlFree(text);
 211                                 user = NULL;
 212                                 text = NULL;
 213                         }
 214                 }
 215                 current = current->next;
 216         }
 217
 218         return;
 219 }
 220
 221 static void parse_timeline(char *document)
 222 {
 223         xmlDocPtr doc;
 224         xmlNodePtr current;
 225         doc = xmlReadMemory(document, strlen(document), "timeline.xml", NULL, XML_PARSE_NOERROR);
 226
 227         if (doc == NULL)
 228                 return;
 229
 230         current = xmlDocGetRootElement(doc);
 231         if (current == NULL) {
 232                 fprintf(stderr, "empty document\n");
 233                 xmlFreeDoc(doc);
 234                 return;
 235         }
 236
 237         if (xmlStrcmp(current->name, (const xmlChar *) "statuses")) {
 238                 fprintf(stderr, "unexpected document type\n");
 239                 xmlFreeDoc(doc);
 240                 return;
 241         }
 242
 243         current = current->xmlChildrenNode;
 244         while (current != NULL) {
 245                 if ((!xmlStrcmp(current->name, (const xmlChar *)"status")))
 246                         parse_statuses(doc, current);
 247                 current = current->next;
 248         }
 249         xmlFreeDoc(doc);
 250
 251         return;
 252 }
 253
 254 size_t curl_callback(void *buffer, size_t size, size_t nmemb, void *userp)
 255 {
 256         struct bti_curl_buffer *curl_buf = userp;
 257         size_t buffer_size = size * nmemb;
 258         char *temp;
 259
 260         if ((!buffer) || (!buffer_size) || (!curl_buf))
 261                 return -EINVAL;
 262
 263         /* add to the data we already have */
 264         temp = zalloc(curl_buf->length + buffer_size + 1);
 265         if (!temp)
 266                 return -ENOMEM;
 267
 268         memcpy(temp, curl_buf->data, curl_buf->length);
 269         free(curl_buf->data);
 270         curl_buf->data = temp;
 271         memcpy(&curl_buf->data[curl_buf->length], (char *)buffer, buffer_size);
 272         curl_buf->length += buffer_size;
 273         if (curl_buf->action)
 274                 parse_timeline(curl_buf->data);
 275
 276         dbg("%s\n", curl_buf->data);
 277
 278         return buffer_size;
 279 }
 280
 281 static int send_request(struct session *session)
 282 {
 283         char user_password[500];
 284         char data[500];
 285         /* is there usernames longer than 22 chars? */
 286         char user_url[70];
 287         struct bti_curl_buffer *curl_buf;
 288         CURL *curl = NULL;
 289         CURLcode res;
 290         struct curl_httppost *formpost = NULL;
 291         struct curl_httppost *lastptr = NULL;
 292         struct curl_slist *slist = NULL;
 293
 294         if (!session)
 295                 return -EINVAL;
 296
 297         curl_buf = bti_curl_buffer_alloc(session->action);
 298         if (!curl_buf)
 299                 return -ENOMEM;
 300
 301         curl = curl_init();
 302         if (!curl)
 303                 return -EINVAL;
 304
 305         switch (session->action) {
 306         case ACTION_UPDATE:
 307                 snprintf(user_password, sizeof(user_password), "%s:%s",
 308                          session->account, session->password);
 309                 snprintf(data, sizeof(data), "status=\"%s\"", session->tweet);
 310                 curl_formadd(&formpost, &lastptr,
 311                              CURLFORM_COPYNAME, "status",
 312                              CURLFORM_COPYCONTENTS, session->tweet,
 313                              CURLFORM_END);
 314
 315                 curl_formadd(&formpost, &lastptr,
 316                              CURLFORM_COPYNAME, "source",
 317                              CURLFORM_COPYCONTENTS, "bti",
 318                              CURLFORM_END);
 319
 320                 curl_easy_setopt(curl, CURLOPT_HTTPPOST, formpost);
 321                 slist = curl_slist_append(slist, "Expect:");
 322                 curl_easy_setopt(curl, CURLOPT_HTTPHEADER, slist);
 323                 switch (session->host) {
 324                 case HOST_TWITTER:
 325                         curl_easy_setopt(curl, CURLOPT_URL, twitter_update_url);
 326                         break;
 327                 case HOST_IDENTICA:
 328                         curl_easy_setopt(curl, CURLOPT_URL, identica_update_url);
 329                         break;
 330                 }
 331                 curl_easy_setopt(curl, CURLOPT_USERPWD, user_password);
 332
 333                 break;
 334         case ACTION_FRIENDS:
 335                 snprintf(user_password, sizeof(user_password), "%s:%s",
 336                          session->account, session->password);
 337                 switch (session->host) {
 338                 case HOST_TWITTER:
 339                         curl_easy_setopt(curl, CURLOPT_URL, twitter_friends_url);
 340                         break;
 341                 case HOST_IDENTICA:
 342                         curl_easy_setopt(curl, CURLOPT_URL, identica_friends_url);
 343                         break;
 344                 }
 345                 curl_easy_setopt(curl, CURLOPT_USERPWD, user_password);
 346
 347                 break;
 348         case ACTION_USER:
 349                 switch (session->host) {
 350                 case HOST_TWITTER:
 351                         sprintf(user_url, "%s%s.xml", twitter_user_url, session->user);
 352                         curl_easy_setopt(curl, CURLOPT_URL, user_url);
 353                         break;
 354                 case HOST_IDENTICA:
 355                         sprintf(user_url, "%s%s.xml", identica_user_url, session->user);
 356                         curl_easy_setopt(curl, CURLOPT_URL, user_url);
 357                         break;
 358                 }
 359
 360                 break;
 361         case ACTION_REPLIES:
 362                 snprintf(user_password, sizeof(user_password), "%s:%s",
 363                          session->account, session->password);
 364                 switch (session->host) {
 365                 case HOST_TWITTER:
 366                         curl_easy_setopt(curl, CURLOPT_URL, twitter_replies_url);
 367                         break;
 368                 case HOST_IDENTICA:
 369                         curl_easy_setopt(curl, CURLOPT_URL, identica_replies_url);
 370                         break;
 371                 }
 372                 curl_easy_setopt(curl, CURLOPT_USERPWD, user_password);
 373
 374                 break;
 375         case ACTION_PUBLIC:
 376                 switch (session->host) {
 377                 case HOST_TWITTER:
 378                         curl_easy_setopt(curl, CURLOPT_URL, twitter_public_url);
 379                         break;
 380                 case HOST_IDENTICA:
 381                         curl_easy_setopt(curl, CURLOPT_URL, identica_public_url);
 382                         break;
 383                 }
 384
 385                 break;
 386         }
 387
 388         if (session->proxy)
 389                 curl_easy_setopt(curl, CURLOPT_PROXY, session->proxy);
 390
 391         if (debug)
 392                 curl_easy_setopt(curl, CURLOPT_VERBOSE, 1);
 393
 394         dbg("user_password = %s\n", user_password);
 395         dbg("data = %s\n", data);
 396         dbg("proxy = %s\n", session->proxy);
 397
 398         curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, curl_callback);
 399         curl_easy_setopt(curl, CURLOPT_WRITEDATA, curl_buf);
 400         res = curl_easy_perform(curl);
 401         if (res && !session->bash) {
 402                 fprintf(stderr, "error(%d) trying to perform operation\n", res);
 403                 return -EINVAL;
 404         }
 405
 406         curl_easy_cleanup(curl);
 407         if (session->action == ACTION_UPDATE)
 408                 curl_formfree(formpost);
 409         bti_curl_buffer_free(curl_buf);
 410         return 0;
 411 }
 412
 413 static void parse_configfile(struct session *session)
 414 {
 415         FILE *config_file;
 416         char *line = NULL;
 417         size_t len = 0;
 418         char *account = NULL;
 419         char *password = NULL;
 420         char *host = NULL;
 421         char *proxy = NULL;
 422         char *logfile = NULL;
 423         char *action = NULL;
 424         char *user = NULL;
 425         char *file;
 426
 427         /* config file is ~/.bti  */
 428         file = alloca(strlen(session->homedir) + 7);
 429
 430         sprintf(file, "%s/.bti", session->homedir);
 431
 432         config_file = fopen(file, "r");
 433
 434         /* No error if file does not exist or is unreadable.  */
 435         if (config_file == NULL)
 436                 return;
 437
 438         do {
 439                 ssize_t n = getline(&line, &len, config_file);
 440                 if (n < 0)
 441                         break;
 442                 if (line[n - 1] == '\n')
 443                         line[n - 1] = '\0';
 444                 /* Parse file.  Format is the usual value pairs:
 445                    account=name
 446                    passwort=value
 447                    # is a comment character
 448                 */
 449                 *strchrnul(line, '#') = '\0';
 450                 char *c = line;
 451                 while (isspace(*c))
 452                         c++;
 453                 /* Ignore blank lines.  */
 454                 if (c[0] == '\0')
 455                         continue;
 456
 457                 if (!strncasecmp(c, "account", 7) && (c[7] == '=')) {
 458                         c += 8;
 459                         if (c[0] != '\0')
 460                                 account = strdup(c);
 461                 } else if (!strncasecmp(c, "password", 8) &&
 462                            (c[8] == '=')) {
 463                         c += 9;
 464                         if (c[0] != '\0')
 465                                 password = strdup(c);
 466                 } else if (!strncasecmp(c, "host", 4) &&
 467                            (c[4] == '=')) {
 468                         c += 5;
 469                         if (c[0] != '\0')
 470                                 host = strdup(c);
 471                 } else if (!strncasecmp(c, "proxy", 5) &&
 472                            (c[5] == '=')) {
 473                         c += 6;
 474                         if (c[0] != '\0')
 475                                 proxy = strdup(c);
 476                 } else if (!strncasecmp(c, "logfile", 7) &&
 477                            (c[7] == '=')) {
 478                         c += 8;
 479                         if (c[0] != '\0')
 480                                 logfile = strdup(c);
 481                 } else if (!strncasecmp(c, "action", 6) &&
 482                            (c[6] == '=')) {
 483                         c += 7;
 484                         if (c[0] != '\0')
 485                                 action = strdup(c);
 486                 } else if (!strncasecmp(c, "user", 4) &&
 487                                 (c[4] == '=')) {
 488                         c += 5;
 489                         if (c[0] != '\0')
 490                                 user = strdup(c);
 491                 }
 492         } while (!feof(config_file));
 493
 494         if (password)
 495                 session->password = password;
 496         if (account)
 497                 session->account = account;
 498         if (host) {
 499                 if (strcasecmp(host, "twitter") == 0)
 500                         session->host = HOST_TWITTER;
 501                 if (strcasecmp(host, "identica") == 0)
 502                         session->host = HOST_IDENTICA;
 503                 free(host);
 504         }
 505         if (proxy) {
 506                 if (session->proxy)
 507                         free(session->proxy);
 508                 session->proxy = proxy;
 509         }
 510         if (logfile)
 511                 session->logfile = logfile;
 512         if (action) {
 513                 if (strcasecmp(action, "update") == 0)
 514                         session->action = ACTION_UPDATE;
 515                 if (strcasecmp(action, "friends") == 0)
 516                         session->action = ACTION_FRIENDS;
 517                 if (strcasecmp(action, "user") == 0)
 518                         session->action = ACTION_USER;
 519                 if (strcasecmp(action, "replies") == 0)
 520                         session->action = ACTION_REPLIES;
 521                 if (strcasecmp(action, "public") == 0)
 522                         session->action = ACTION_PUBLIC;
 523                 free(action);
 524         }
 525         if (user) {
 526                 session->user = user;
 527         }
 528
 529         /* Free buffer and close file.  */
 530         free(line);
 531         fclose(config_file);
 532 }
 533
 534 static void log_session(struct session *session, int retval)
 535 {
 536         FILE *log_file;
 537         char *filename;
 538         char *host;
 539
 540         /* Only log something if we have a log file set */
 541         if (!session->logfile)
 542                 return;
 543
 544         filename = alloca(strlen(session->homedir) +
 545                           strlen(session->logfile) + 3);
 546
 547         sprintf(filename, "%s/%s", session->homedir, session->logfile);
 548
 549         log_file = fopen(filename, "a+");
 550         if (log_file == NULL)
 551                 return;
 552         switch (session->host) {
 553         case HOST_TWITTER:
 554                 host = "twitter";
 555                 break;
 556         case HOST_IDENTICA:
 557                 host = "identi.ca";
 558                 break;
 559         default:
 560                 host = "unknown";
 561                 break;
 562         }
 563
 564         switch (session->action) {
 565         case ACTION_UPDATE:
 566                 if (retval)
 567                         fprintf(log_file, "%s: host=%s tweet failed\n",
 568                                 session->time, host);
 569                 else
 570                         fprintf(log_file, "%s: host=%s tweet=%s\n",
 571                                 session->time, host, session->tweet);
 572                 break;
 573         case ACTION_FRIENDS:
 574                 fprintf(log_file, "%s: host=%s retrieving friends timeline\n",
 575                         session->time, host);
 576                 break;
 577         case ACTION_USER:
 578                 fprintf(log_file, "%s: host=%s retrieving %s's timeline\n",
 579                         session->time, host, session->user);
 580                 break;
 581         case ACTION_REPLIES:
 582                 fprintf(log_file, "%s: host=%s retrieving replies\n",
 583                         session->time, host);
 584                 break;
 585         case ACTION_PUBLIC:
 586                 fprintf(log_file, "%s: host=%s retrieving public timeline\n",
 587                         session->time, host);
 588                 break;
 589         }
 590
 591         fclose(log_file);
 592 }
 593
 594 int main(int argc, char *argv[], char *envp[])
 595 {
 596         static const struct option options[] = {
 597                 { "debug", 0, NULL, 'd' },
 598                 { "account", 1, NULL, 'a' },
 599                 { "password", 1, NULL, 'p' },
 600                 { "host", 1, NULL, 'H' },
 601                 { "proxy", 1, NULL, 'P' },
 602                 { "action", 1, NULL, 'A' },
 603                 { "user", 1, NULL, 'u' },
 604                 { "logfile", 1, NULL, 'L' },
 605                 { "help", 0, NULL, 'h' },
 606                 { "bash", 0, NULL, 'b' },
 607                 { "version", 0, NULL, 'v' },
 608                 { }
 609         };
 610         struct session *session;
 611         pid_t child;
 612         char *tweet;
 613         int retval = 0;
 614         int option;
 615         char *http_proxy;
 616         time_t t;
 617
 618         debug = 0;
 619         rl_bind_key('\t', rl_insert);
 620
 621         session = session_alloc();
 622         if (!session) {
 623                 fprintf(stderr, "no more memory...\n");
 624                 return -1;
 625         }
 626
 627         /* get the current time so that we can log it later */
 628         time(&t);
 629         session->time = strdup(ctime(&t));
 630         session->time[strlen(session->time)-1] = 0x00;
 631
 632         session->homedir = strdup(getenv("HOME"));
 633
 634         curl_global_init(CURL_GLOBAL_ALL);
 635
 636         /* Set environment variables first, before reading command line options
 637          * or config file values. */
 638         http_proxy = getenv("http_proxy");
 639         if (http_proxy) {
 640                 if (session->proxy)
 641                         free(session->proxy);
 642                 session->proxy = strdup(http_proxy);
 643                 dbg("http_proxy = %s\n", session->proxy);
 644         }
 645
 646         parse_configfile(session);
 647
 648         while (1) {
 649                 option = getopt_long_only(argc, argv, "dqe:p:P:H:a:A:u:h",
 650                                           options, NULL);
 651                 if (option == -1)
 652                         break;
 653                 switch (option) {
 654                 case 'd':
 655                         debug = 1;
 656                         break;
 657                 case 'a':
 658                         if (session->account)
 659                                 free(session->account);
 660                         session->account = strdup(optarg);
 661                         dbg("account = %s\n", session->account);
 662                         break;
 663                 case 'p':
 664                         if (session->password)
 665                                 free(session->password);
 666                         session->password = strdup(optarg);
 667                         dbg("password = %s\n", session->password);
 668                         break;
 669                 case 'P':
 670                         if (session->proxy)
 671                                 free(session->proxy);
 672                         session->proxy = strdup(optarg);
 673                         dbg("proxy = %s\n", session->proxy);
 674                         break;
 675                 case 'A':
 676                         if (strcasecmp(optarg, "update") == 0)
 677                                 session->action = ACTION_UPDATE;
 678                         if (strcasecmp(optarg, "friends") == 0)
 679                                 session->action = ACTION_FRIENDS;
 680                         if (strcasecmp(optarg, "user") == 0)
 681                                 session->action = ACTION_USER;
 682                         if (strcasecmp(optarg, "replies") == 0)
 683                                 session->action = ACTION_REPLIES;
 684                         if (strcasecmp(optarg, "public") == 0)
 685                                 session->action = ACTION_PUBLIC;
 686                         dbg("action = %d\n", session->action);
 687                         break;
 688                 case 'u':
 689                         if (session->user)
 690                                 free(session->user);
 691                         session->user = strdup(optarg);
 692                         dbg("user = %s\n", session->user);
 693                         break;
 694                 case 'L':
 695                         if (session->logfile)
 696                                 free(session->logfile);
 697                         session->logfile = strdup(optarg);
 698                         dbg("logfile = %s\n", session->logfile);
 699                         break;
 700                 case 'H':
 701                         if (strcasecmp(optarg, "twitter") == 0)
 702                                 session->host = HOST_TWITTER;
 703                         if (strcasecmp(optarg, "identica") == 0)
 704                                 session->host = HOST_IDENTICA;
 705                         dbg("host = %d\n", session->host);
 706                         break;
 707                 case 'b':
 708                         session->bash = 1;
 709                         break;
 710                 case 'h':
 711                         display_help();
 712                         goto exit;
 713                 case 'v':
 714                         display_version();
 715                         goto exit;
 716                 default:
 717                         display_help();
 718                         goto exit;
 719                 }
 720         }
 721
 722         if (!session->account) {
 723                 fprintf(stdout, "Enter twitter account: ");
 724                 session->account = readline(NULL);
 725         }
 726
 727         if (!session->password) {
 728                 fprintf(stdout, "Enter twitter password: ");
 729                 session->password = readline(NULL);
 730         }
 731
 732         if (session->action == ACTION_UPDATE) {
 733                 if (session->bash)
 734                         tweet = readline(NULL);
 735                 else
 736                         tweet = readline("tweet: ");
 737                 if (!tweet || strlen(tweet) == 0) {
 738                         dbg("no tweet?\n");
 739                         return -1;
 740                 }
 741
 742                 session->tweet = zalloc(strlen(tweet) + 10);
 743                 if (session->bash)
 744                         sprintf(session->tweet, "$ %s", tweet);
 745                 else
 746                         sprintf(session->tweet, "%s", tweet);
 747
 748                 free(tweet);
 749                 dbg("tweet = %s\n", session->tweet);
 750         }
 751
 752         if (!session->user)
 753                 session->user = session->account;
 754
 755         dbg("account = %s\n", session->account);
 756         dbg("password = %s\n", session->password);
 757         dbg("host = %d\n", session->host);
 758         dbg("action = %d\n", session->action);
 759
 760         /* fork ourself so that the main shell can get on
 761          * with it's life as we try to connect and handle everything
 762          */
 763         if (session->bash) {
 764                 child = fork();
 765                 if (child) {
 766                         dbg("child is %d\n", child);
 767                         exit(0);
 768                 }
 769         }
 770
 771         retval = send_request(session);
 772         if (retval && !session->bash)
 773                 fprintf(stderr, "operation failed\n");
 774
 775         log_session(session, retval);
 776 exit:
 777         session_free(session);
 778         return retval;;
 779 }