main.c

           */
          urlbuffer=(char *)malloc(strlen(url) + strlen(httpgetfields) + 2);
          if(!urlbuffer) {
            helpf("out of memory\n");
            return CURLE_OUT_OF_MEMORY;
          }
          if (pc)
            sprintf(urlbuffer, "%s%c%s", url, separator, httpgetfields);
          else
            /* Append  / before the ? to create a well-formed url
               if the url contains a hostname only
            */
            sprintf(urlbuffer, "%s/?%s", url, httpgetfields);
 
          free(url); /* free previous URL */
          url = urlbuffer; /* use our new URL instead! */
        }

        if(!config->errors)
          config->errors = stderr;

#ifdef O_BINARY
        if(!outfile && !(config->conf & CONF_GETTEXT)) {
          /* We get the output to stdout and we have not got the ASCII/text flag,
             then set stdout to be binary */
          setmode( fileno(stdout), O_BINARY );
        }
#endif

        curl_easy_setopt(curl, CURLOPT_SSLENGINE, config->engine);
        curl_easy_setopt(curl, CURLOPT_SSLENGINE_DEFAULT, 1);

        /* where to store */
        curl_easy_setopt(curl, CURLOPT_WRITEDATA, (FILE *)&outs);
        /* what call to write */
        curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, my_fwrite);

        /* for uploads */
        input.stream = infd;
        input.config = config;
        curl_easy_setopt(curl, CURLOPT_READDATA, &input);
        /* what call to read */
        curl_easy_setopt(curl, CURLOPT_READFUNCTION, my_fread);

        if(config->recvpersecond) {
          /* tell libcurl to use a smaller sized buffer as it allows us to
             make better sleeps! 7.9.9 stuff! */
          curl_easy_setopt(curl, CURLOPT_BUFFERSIZE, config->recvpersecond);
        }

        /* size of uploaded file: */
        curl_easy_setopt(curl, CURLOPT_INFILESIZE, uploadfilesize);
        curl_easy_setopt(curl, CURLOPT_URL, url);     /* what to fetch */
        curl_easy_setopt(curl, CURLOPT_PROXY, config->proxy); /* proxy to use */
        curl_easy_setopt(curl, CURLOPT_HEADER, config->conf&CONF_HEADER);
        curl_easy_setopt(curl, CURLOPT_NOPROGRESS, config->conf&CONF_NOPROGRESS);
        curl_easy_setopt(curl, CURLOPT_NOBODY, config->conf&CONF_NOBODY);
        curl_easy_setopt(curl, CURLOPT_FAILONERROR,
                         config->conf&CONF_FAILONERROR);
        curl_easy_setopt(curl, CURLOPT_UPLOAD, uploadfile?TRUE:FALSE);
        curl_easy_setopt(curl, CURLOPT_FTPLISTONLY,
                         config->conf&CONF_FTPLISTONLY);
        curl_easy_setopt(curl, CURLOPT_FTPAPPEND, config->conf&CONF_FTPAPPEND);

        if (config->conf&CONF_NETRC_OPT)
          curl_easy_setopt(curl, CURLOPT_NETRC, CURL_NETRC_OPTIONAL);
        else if (config->conf&CONF_NETRC)
          curl_easy_setopt(curl, CURLOPT_NETRC, CURL_NETRC_REQUIRED);
        else
          curl_easy_setopt(curl, CURLOPT_NETRC, CURL_NETRC_IGNORED);

        curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION,
                         config->conf&CONF_FOLLOWLOCATION);
        curl_easy_setopt(curl, CURLOPT_UNRESTRICTED_AUTH,
                         config->conf&CONF_UNRESTRICTED_AUTH);
        curl_easy_setopt(curl, CURLOPT_TRANSFERTEXT, config->conf&CONF_GETTEXT);
        curl_easy_setopt(curl, CURLOPT_MUTE, config->conf&CONF_MUTE);
        curl_easy_setopt(curl, CURLOPT_USERPWD, config->userpwd);
        curl_easy_setopt(curl, CURLOPT_PROXYUSERPWD, config->proxyuserpwd);
        curl_easy_setopt(curl, CURLOPT_RANGE, config->range);
        curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, errorbuffer);
        curl_easy_setopt(curl, CURLOPT_TIMEOUT, config->timeout);
        curl_easy_setopt(curl, CURLOPT_POSTFIELDS, config->postfields);

        /* new in libcurl 7.2: */
        curl_easy_setopt(curl, CURLOPT_POSTFIELDSIZE, config->postfieldsize);
        
        curl_easy_setopt(curl, CURLOPT_REFERER, config->referer);
        curl_easy_setopt(curl, CURLOPT_AUTOREFERER,
                         config->conf&CONF_AUTO_REFERER);
        curl_easy_setopt(curl, CURLOPT_USERAGENT, config->useragent);
        curl_easy_setopt(curl, CURLOPT_FTPPORT, config->ftpport);
        curl_easy_setopt(curl, CURLOPT_LOW_SPEED_LIMIT, config->low_speed_limit);
        curl_easy_setopt(curl, CURLOPT_LOW_SPEED_TIME, config->low_speed_time);
        curl_easy_setopt(curl, CURLOPT_RESUME_FROM,
                         config->use_resume?config->resume_from:0);
        curl_easy_setopt(curl, CURLOPT_COOKIE, config->cookie);
        curl_easy_setopt(curl, CURLOPT_HTTPHEADER, config->headers);
        curl_easy_setopt(curl, CURLOPT_HTTPPOST, config->httppost);
        curl_easy_setopt(curl, CURLOPT_SSLCERT, config->cert);
        curl_easy_setopt(curl, CURLOPT_SSLCERTTYPE, config->cert_type);
        curl_easy_setopt(curl, CURLOPT_SSLKEY, config->key);
        curl_easy_setopt(curl, CURLOPT_SSLKEYTYPE, config->key_type);
        curl_easy_setopt(curl, CURLOPT_SSLKEYPASSWD, config->key_passwd);

        /* default to strict verifyhost */
        curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, 2);
        if(config->cacert || config->capath) {
          if (config->cacert)
            curl_easy_setopt(curl, CURLOPT_CAINFO, config->cacert);

          if (config->capath)
            curl_easy_setopt(curl, CURLOPT_CAPATH, config->capath);
          curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, TRUE);
        }
        else
          if(config->insecure_ok) {
            /* new stuff needed for libcurl 7.10 */
            curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, FALSE);
            curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, 1);
          }
      
        if((config->conf&CONF_NOBODY) ||
           config->remote_time) {
          /* no body or use remote time */
          curl_easy_setopt(curl, CURLOPT_FILETIME, TRUE);
        }
      
        if (config->maxredirs) 
          curl_easy_setopt(curl, CURLOPT_MAXREDIRS, config->maxredirs); 
        else 
          curl_easy_setopt(curl, CURLOPT_MAXREDIRS, DEFAULT_MAXREDIRS); 
 
        curl_easy_setopt(curl, CURLOPT_CRLF, config->crlf);
        curl_easy_setopt(curl, CURLOPT_QUOTE, config->quote);
        curl_easy_setopt(curl, CURLOPT_POSTQUOTE, config->postquote);
        curl_easy_setopt(curl, CURLOPT_WRITEHEADER,
                         config->headerfile?&heads:NULL);
        curl_easy_setopt(curl, CURLOPT_COOKIEFILE, config->cookiefile);
        /* cookie jar was added in 7.9 */
        if(config->cookiejar)
          curl_easy_setopt(curl, CURLOPT_COOKIEJAR, config->cookiejar);
        /* cookie session added in 7.9.7 */
        curl_easy_setopt(curl, CURLOPT_COOKIESESSION, config->cookiesession);

        curl_easy_setopt(curl, CURLOPT_SSLVERSION, config->ssl_version);
        curl_easy_setopt(curl, CURLOPT_TIMECONDITION, config->timecond);
        curl_easy_setopt(curl, CURLOPT_TIMEVALUE, config->condtime);
        curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, config->customrequest);
        curl_easy_setopt(curl, CURLOPT_STDERR, config->errors);
      
        /* three new ones in libcurl 7.3: */
        curl_easy_setopt(curl, CURLOPT_HTTPPROXYTUNNEL, config->proxytunnel);
        curl_easy_setopt(curl, CURLOPT_INTERFACE, config->iface);
        curl_easy_setopt(curl, CURLOPT_KRB4LEVEL, config->krb4level);
      
        if((config->progressmode == CURL_PROGRESS_BAR) &&
           !(config->conf&(CONF_NOPROGRESS|CONF_MUTE))) {
          /* we want the alternative style, then we have to implement it
             ourselves! */
          progressbarinit(&progressbar, config);
          curl_easy_setopt(curl, CURLOPT_PROGRESSFUNCTION, myprogress);
          curl_easy_setopt(curl, CURLOPT_PROGRESSDATA, &progressbar);
        }
        
        /* new in libcurl 7.6.2: */
        curl_easy_setopt(curl, CURLOPT_TELNETOPTIONS, config->telnet_options);

        /* new in libcurl 7.7: */
        curl_easy_setopt(curl, CURLOPT_RANDOM_FILE, config->random_file);
        curl_easy_setopt(curl, CURLOPT_EGDSOCKET, config->egd_file);
        curl_easy_setopt(curl, CURLOPT_CONNECTTIMEOUT, config->connecttimeout);

        if(config->cipher_list)
          curl_easy_setopt(curl, CURLOPT_SSL_CIPHER_LIST, config->cipher_list);

        if(config->httpversion)
          curl_easy_setopt(curl, CURLOPT_HTTP_VERSION, config->httpversion);

        /* new in libcurl 7.9.2: */
        if(config->disable_epsv)
          /* disable it */
          curl_easy_setopt(curl, CURLOPT_FTP_USE_EPSV, FALSE);

        /* new in libcurl 7.10.5 */
        if(config->disable_eprt)
          /* disable it */
          curl_easy_setopt(curl, CURLOPT_FTP_USE_EPRT, FALSE);

        /* new in libcurl 7.10.6 (default is Basic) */
        if(config->authtype)
          curl_easy_setopt(curl, CURLOPT_HTTPAUTH, config->authtype);
      
        /* new in curl 7.9.7 */
        if(config->trace_dump) {
          curl_easy_setopt(curl, CURLOPT_DEBUGFUNCTION, my_trace);
          curl_easy_setopt(curl, CURLOPT_DEBUGDATA, config);
          config->conf |= CONF_VERBOSE; /* force verbose */
        }
        curl_easy_setopt(curl, CURLOPT_VERBOSE, config->conf&CONF_VERBOSE);

        /* new in curl 7.10 */
        curl_easy_setopt(curl, CURLOPT_ENCODING, 
                         (config->encoding) ? "" : NULL);

        /* new in curl 7.10.7 */
        curl_easy_setopt(curl, CURLOPT_FTP_CREATE_MISSING_DIRS,
                         config->ftp_create_dirs);
        if(config->proxyntlm)
          curl_easy_setopt(curl, CURLOPT_PROXYAUTH, CURLAUTH_NTLM);

        res = curl_easy_perform(curl);
        
        if((config->progressmode == CURL_PROGRESS_BAR) &&
           progressbar.calls) {
          /* if the custom progress bar has been displayed, we output a
             newline here */
          fputs("\n", progressbar.out);
        }

        if(config->writeout) {
          ourWriteOut(curl, config->writeout);
        }
#ifdef USE_ENVIRONMENT
        if (config->writeenv)
          ourWriteEnv(curl);
#endif

#ifdef	VMS
        if (!config->showerror)  {
          vms_show = VMSSTS_HIDE;
        }
#else
        if((res!=CURLE_OK) && config->showerror) {
          if(CURLE_SSL_CACERT == res) {
            fprintf(config->errors, "curl: (%d) %s\n\n", res, errorbuffer);
#define CURL_CA_CERT_ERRORMSG1 \
"More details here: http://curl.haxx.se/docs/sslcerts.html\n\n" \
"curl performs SSL certificate verification by default, using a \"bundle\"\n" \
" of Certificate Authority (CA) public keys (CA certs). The default\n" \
" bundle is named curl-ca-bundle.crt; you can specify an alternate file\n" \
" using the --cacert option.\n"

#define CURL_CA_CERT_ERRORMSG2 \
"If this HTTPS server uses a certificate signed by a CA represented in\n" \
" the bundle, the certificate verification probably failed due to a\n" \
" problem with the certificate (it might be expired, or the name might\n" \
" not match the domain name in the URL).\n" \
"If you'd like to turn off curl's verification of the certificate, use\n" \
" the -k (or --insecure) option.\n"

            fprintf(config->errors, "%s%s",
                    CURL_CA_CERT_ERRORMSG1,
                    CURL_CA_CERT_ERRORMSG2 );
          }
          else
            fprintf(config->errors, "curl: (%d) %s\n", res, errorbuffer);
        }
#endif

        if (outfile && !curl_strequal(outfile, "-") && outs.stream)
          fclose(outs.stream);

#ifdef HAVE_UTIME
        /* Important that we set the time _after_ the file has been 
           closed, as is done above here */
        if(config->remote_time && outs.filename) {
          /* as libcurl if we got a time. Pretty please */
          long filetime;
          curl_easy_getinfo(curl, CURLINFO_FILETIME, &filetime);
          if(filetime >= 0) {
            struct utimbuf times;
            times.actime = filetime;
            times.modtime = filetime;
            utime(outs.filename, &times); /* set the time we got */
          }
        }
#endif

        if(headerfilep)
          fclose(headerfilep);
      
        if (httpgetfields)
          free(httpgetfields);

        if(url)
          free(url);

        if(outfile)
          free(outfile);

        if(infdfopen)
          fclose(infd);

      } /* loop to the next URL */

      if(urls)
        /* cleanup memory used for URL globbing patterns */
        glob_cleanup(urls);
     
      if(uploadfile)
        free(uploadfile);
 
    } /* loop to the next globbed upload file */

    if(inglob)
      glob_cleanup(inglob);

    if(outfiles)
      free(outfiles);

    /* empty this urlnode struct */
    if(urlnode->url)
      free(urlnode->url);
    if(urlnode->outfile)
      free(urlnode->outfile);
    if(urlnode->infile)
      free(urlnode->infile);
    
    /* move on to the next URL */
    nextnode=urlnode->next;
    free(urlnode); /* free the node */
    urlnode = nextnode;

  } /* while-loop through all URLs */

  if(config->headerfile && !headerfilep && heads.stream)
    fclose(heads.stream);

  if(config->trace_fopened)
    fclose(config->trace_stream);

  if(allocuseragent)
    free(config->useragent);

  /* cleanup the curl handle! */
  curl_easy_cleanup(curl);

  if(config->errors_fopened)
    fclose(config->errors);

  main_free(); /* cleanup */

  return res;
}

int main(int argc, char *argv[])
{
  int res;
  struct Configurable config;
  memset(&config, 0, sizeof(struct Configurable));

  res = operate(&config, argc, argv);
  free_config_fields(&config);

#ifdef	VMS
  if (res > 52) res = 53;		/* MAXMSG, porting helper */
  return (vms_cond[res]|vms_show);
#else
  return res;
#endif
}

static char *my_get_line(FILE *fp)
{
   char buf[4096];
   char *nl = NULL;
   char *retval = NULL;

   do {
     if (NULL == fgets(buf, sizeof(buf), fp))
       break;
     if (NULL == retval)
       retval = strdup(buf);
     else {
       if (NULL == (retval = realloc(retval,
                                     strlen(retval) + strlen(buf) + 1)))
         break;
       strcat(retval, buf);
     }
   }
   while (NULL == (nl = strchr(retval, '\n')));

   if (NULL != nl)
     *nl = '\0';

   return retval;
}


/* Create the needed directory hierarchy recursively in order to save
   multi-GETs in file output, ie:
   curl "http://my.site/dir[1-5]/file[1-5].txt" -o "dir#1/file#2.txt"
   should create all the dir* automagically
*/
static int create_dir_hierarchy(char *outfile)
{
  char *tempdir;
  char *tempdir2;
  char *outdup;
  char *dirbuildup;
  int result=0;
  
  outdup = strdup(outfile);
  dirbuildup = malloc(sizeof(char) * strlen(outfile));
  if(!dirbuildup)
    return -1;
  dirbuildup[0] = '\0';

  tempdir = strtok(outdup, DIR_CHAR);

  while (tempdir != NULL) {
    tempdir2 = strtok(NULL, DIR_CHAR);
    /* since strtok returns a token for the last word even
       if not ending with DIR_CHAR, we need to prune it */
    if (tempdir2 != NULL) {
      if (strlen(dirbuildup) > 0)
        sprintf(dirbuildup,"%s%s%s",dirbuildup, DIR_CHAR, tempdir);
      else {
        if (0 != strncmp(outdup, DIR_CHAR, 1))
          sprintf(dirbuildup,"%s",tempdir);
        else
          sprintf(dirbuildup,"%s%s", DIR_CHAR, tempdir);
      }
      if (access(dirbuildup, F_OK) == -1) {
        result = mkdir(dirbuildup,(mode_t)0000750);
        if (-1 == result) {
          switch (errno) {
#ifdef EACCES
          case EACCES:
            fprintf(stderr,"You don't have permission to create %s.\n",
                    dirbuildup);
            break;
#endif
#ifdef ENAMETOOLONG
          case ENAMETOOLONG:
            fprintf(stderr,"The directory name %s is too long.\n",
                    dirbuildup);
            break;
#endif
#ifdef EROFS
          case EROFS:
            fprintf(stderr,"%s resides on a read-only file system.\n",
                    dirbuildup);
            break;
#endif
#ifdef ENOSPC
          case ENOSPC:
            fprintf(stderr,"No space left on the file system that will "
                    "contain the directory %s.\n", dirbuildup);
            break;
#endif
#ifdef EDQUOT
          case EDQUOT:
            fprintf(stderr,"Cannot create directory %s because you "
                    "exceeded your quota.\n", dirbuildup);
            break;
#endif
          default :
            fprintf(stderr,"Error creating directory %s.\n", dirbuildup);
            break;
          }
          break; /* get out of loop */
        }
      }
    }
    tempdir = tempdir2;
  }
  free(dirbuildup);
  free(outdup);

  return result; /* 0 is fine, -1 is badness */
}

#ifdef __DJGPP__
/* The following functions are taken with modification from the DJGPP
 * port of tar 1.12. They use algorithms originally from DJTAR. */

char *
msdosify (char *file_name)
{
  static char dos_name[PATH_MAX];
  static char illegal_chars_dos[] = ".+, ;=[]|<>\\\":?*";
  static char *illegal_chars_w95 = &illegal_chars_dos[8];
  int idx, dot_idx;
  char *s = file_name, *d = dos_name;
  char *illegal_aliens = illegal_chars_dos;
  size_t len = sizeof (illegal_chars_dos) - 1;
  int lfn = 0;

  /* Support for Windows 9X VFAT systems, when available.  */
  if (_use_lfn (file_name))
    lfn = 1;
  if (lfn) {
    illegal_aliens = illegal_chars_w95;
    len -= (illegal_chars_w95 - illegal_chars_dos);
  }
  
  /* Get past the drive letter, if any. */
  if (s[0] >= 'A' && s[0] <= 'z' && s[1] == ':') {
    *d++ = *s++;
    *d++ = *s++;
  }

  for (idx = 0, dot_idx = -1; *s; s++, d++) {
    if (memchr (illegal_aliens, *s, len)) {
      /* Dots are special: DOS doesn't allow them as the leading character,
         and a file name cannot have more than a single dot.  We leave the
         first non-leading dot alone, unless it comes too close to the
         beginning of the name: we want sh.lex.c to become sh_lex.c, not
         sh.lex-c.  */
      if (*s == '.') {
        if (idx == 0 && (s[1] == '/' || (s[1] == '.' && s[2] == '/'))) {
          /* Copy "./" and "../" verbatim.  */
          *d++ = *s++;
          if (*s == '.')
            *d++ = *s++;
          *d = *s;
        }
        else if (idx == 0)
          *d = '_';
        else if (dot_idx >= 0) {
          if (dot_idx < 5) { /* 5 is a heuristic ad-hoc'ery */
            d[dot_idx - idx] = '_'; /* replace previous dot */
            *d = '.';
          }
          else
            *d = '-';
        }
        else
          *d = '.';

        if (*s == '.')
          dot_idx = idx;
      }
      else if (*s == '+' && s[1] == '+') {
        if (idx - 2 == dot_idx) { /* .c++, .h++ etc. */
          *d++ = 'x';
          *d   = 'x';
        }
        else {
          /* libg++ etc.  */
          memcpy (d, "plus", 4);
          d += 3;
        }
        s++;
        idx++;
      }
      else
        *d = '_';
    }
    else
      *d = *s;
    if (*s == '/') {
      idx = 0;
      dot_idx = -1;
    }
    else
      idx++;
  }

  *d = '\0';
  return dos_name;
}

char *
rename_if_dos_device_name (char *file_name)
{
  /* We could have a file whose name is a device on MS-DOS.  Trying to
   * retrieve such a file would fail at best and wedge us at worst.  We need
   * to rename such files. */
  extern char *basename (const char *);
  char *base;
  struct stat st_buf;
  char fname[PATH_MAX];

  strcpy (fname, file_name);
  base = basename (fname);
  if (((stat(base, &st_buf)) == 0) && (S_ISCHR(st_buf.st_mode))) {
    size_t blen = strlen (base);

    /* Prepend a '_'.  */
    memmove (base + 1, base, blen + 1);
    base[0] = '_';
    strcpy (file_name, fname);
  }
  return file_name;
}

#endif /* __DJGPP__ */