[exim.git] / src / src / spam.c

/* $Cambridge: exim/src/src/spam.c,v 1.5 2005/04/27 10:00:18 ph10 Exp $ */

/*************************************************
*     Exim - an Internet mail transport agent    *
*************************************************/

/* Copyright (c) Tom Kistner <tom@duncanthrax.net> 2003-???? */
/* License: GPL */

/* Code for calling spamassassin's spamd. Called from acl.c. */

#include "exim.h"
#ifdef WITH_CONTENT_SCAN
#include "spam.h"

uschar spam_score_buffer[16];
uschar spam_score_int_buffer[16];
uschar spam_bar_buffer[128];
uschar spam_report_buffer[32600];
uschar prev_user_name[128] = "";
int spam_ok = 0;
int spam_rc = 0;

int spam(uschar **listptr) {
  int sep = 0;
  uschar *list = *listptr;
  uschar *user_name;
  uschar user_name_buffer[128];
  unsigned long mbox_size;
  FILE *mbox_file;
  int spamd_sock;
  uschar spamd_buffer[32600];
  int i, j, offset, result;
  uschar spamd_version[8];
  uschar spamd_score_char;
  double spamd_threshold, spamd_score;
  int spamd_report_offset;
  uschar *p,*q;
  int override = 0;
  time_t start;
  size_t read, wrote;
  struct sockaddr_un server;
  struct pollfd pollfd;

  /* find the username from the option list */
  if ((user_name = string_nextinlist(&list, &sep,
                                     user_name_buffer,
                                     sizeof(user_name_buffer))) == NULL) {
    /* no username given, this means no scanning should be done */
    return FAIL;
  };

  /* if username is "0" or "false", do not scan */
  if ( (Ustrcmp(user_name,"0") == 0) ||
       (strcmpic(user_name,US"false") == 0) ) {
    return FAIL;
  };

  /* if there is an additional option, check if it is "true" */
  if (strcmpic(list,US"true") == 0) {
    /* in that case, always return true later */
    override = 1;
  };

  /* if we scanned for this username last time, just return */
  if ( spam_ok && ( Ustrcmp(prev_user_name, user_name) == 0 ) ) {
    if (override)
      return OK;
    else
      return spam_rc;
  };

  /* make sure the eml mbox file is spooled up */
  mbox_file = spool_mbox(&mbox_size);

  if (mbox_file == NULL) {
    /* error while spooling */
    log_write(0, LOG_MAIN|LOG_PANIC,
           "spam acl condition: error while creating mbox spool file");
    return DEFER;
  };

  start = time(NULL);
  /* socket does not start with '/' -> network socket */
  if (*spamd_address != '/') {
    time_t now = time(NULL);
    int num_servers = 0;
    int current_server = 0;
    int start_server = 0;
    uschar *address = NULL;
    uschar *spamd_address_list_ptr = spamd_address;
    uschar address_buffer[256];
    spamd_address_container * spamd_address_vector[32];

    /* Check how many spamd servers we have
       and register their addresses */
    while ((address = string_nextinlist(&spamd_address_list_ptr, &sep,
                                        address_buffer,
                                        sizeof(address_buffer))) != NULL) {

      spamd_address_container *this_spamd =
        (spamd_address_container *)store_get(sizeof(spamd_address_container));

      /* grok spamd address and port */
      if( sscanf(CS address, "%s %u", this_spamd->tcp_addr, &(this_spamd->tcp_port)) != 2 ) {
        log_write(0, LOG_MAIN,
          "spam acl condition: warning - invalid spamd address: '%s'", address);
        continue;
      };

      spamd_address_vector[num_servers] = this_spamd;
      num_servers++;
      if (num_servers > 31)
        break;
    };

    /* check if we have at least one server */
    if (!num_servers) {
      log_write(0, LOG_MAIN|LOG_PANIC,
         "spam acl condition: no useable spamd server addresses in spamd_address configuration option.");
      fclose(mbox_file);
      return DEFER;
    };

    current_server = start_server = (int)now % num_servers;

    while (1) {

      debug_printf("trying server %s, port %u\n",
                   spamd_address_vector[current_server]->tcp_addr,
                   spamd_address_vector[current_server]->tcp_port);

      /* contact a spamd */
      if ( (spamd_sock = ip_socket(SOCK_STREAM, AF_INET)) < 0) {
        log_write(0, LOG_MAIN|LOG_PANIC,
           "spam acl condition: error creating IP socket for spamd");
        fclose(mbox_file);
        return DEFER;
      };

      if (ip_connect( spamd_sock,
                      AF_INET,
                      spamd_address_vector[current_server]->tcp_addr,
                      spamd_address_vector[current_server]->tcp_port,
                      5 ) > -1) {
        /* connection OK */
        break;
      };

      log_write(0, LOG_MAIN|LOG_PANIC,
         "spam acl condition: warning - spamd connection to %s, port %u failed: %s",
         spamd_address_vector[current_server]->tcp_addr,
         spamd_address_vector[current_server]->tcp_port,
         strerror(errno));
      current_server++;
      if (current_server >= num_servers)
        current_server = 0;
      if (current_server == start_server) {
        log_write(0, LOG_MAIN|LOG_PANIC, "spam acl condition: all spamd servers failed");
        fclose(mbox_file);
        close(spamd_sock);
        return DEFER;
      };
    };

  }
  else {
    /* open the local socket */

    if ((spamd_sock = socket(AF_UNIX, SOCK_STREAM, 0)) < 0) {
      log_write(0, LOG_MAIN|LOG_PANIC,
                "malware acl condition: spamd: unable to acquire socket (%s)",
                strerror(errno));
      fclose(mbox_file);
      return DEFER;
    }

    server.sun_family = AF_UNIX;
    Ustrcpy(server.sun_path, spamd_address);

    if (connect(spamd_sock, (struct sockaddr *) &server, sizeof(struct sockaddr_un)) < 0) {
      log_write(0, LOG_MAIN|LOG_PANIC,
                "malware acl condition: spamd: unable to connect to UNIX socket %s (%s)",
                spamd_address, strerror(errno) );
      fclose(mbox_file);
      close(spamd_sock);
      return DEFER;
    }

  }

  /* now we are connected to spamd on spamd_sock */
  snprintf(CS spamd_buffer,
           sizeof(spamd_buffer),
           "REPORT SPAMC/1.2\r\nUser: %s\r\nContent-length: %ld\r\n\r\n",
           user_name,
           mbox_size);

  /* send our request */
  if (send(spamd_sock, spamd_buffer, Ustrlen(spamd_buffer), 0) < 0) {
    close(spamd_sock);
    log_write(0, LOG_MAIN|LOG_PANIC,
         "spam acl condition: spamd send failed: %s", strerror(errno));
    fclose(mbox_file);
    close(spamd_sock);
    return DEFER;
  };

  /* now send the file */
  /* spamd sometimes accepts conections but doesn't read data off
   * the connection.  We make the file descriptor non-blocking so
   * that the write will only write sufficient data without blocking
   * and we poll the desciptor to make sure that we can write without
   * blocking.  Short writes are gracefully handled and if the whole
   * trasaction takes too long it is aborted.
   */
  pollfd.fd = spamd_sock;
  pollfd.events = POLLOUT;
  fcntl(spamd_sock, F_SETFL, O_NONBLOCK);
  do {
    read = fread(spamd_buffer,1,sizeof(spamd_buffer),mbox_file);
    if (read > 0) {
      offset = 0;
again:
      result = poll(&pollfd, 1, 1000);
      if (result == -1 && errno == EINTR)
        continue;
      else if (result < 1) {
        if (result == -1)
          log_write(0, LOG_MAIN|LOG_PANIC,
            "spam acl condition: %s on spamd socket", strerror(errno));
        else {
          if (time(NULL) - start < SPAMD_TIMEOUT)
          goto again;
          log_write(0, LOG_MAIN|LOG_PANIC,
            "spam acl condition: timed out writing spamd socket");
        }
        close(spamd_sock);
        fclose(mbox_file);
        return DEFER;
      }
      wrote = send(spamd_sock,spamd_buffer + offset,read - offset,0);
      if (offset + wrote != read) {
        offset += wrote;
        goto again;
      }
    }
  }
  while (!feof(mbox_file) && !ferror(mbox_file));
  if (ferror(mbox_file)) {
    log_write(0, LOG_MAIN|LOG_PANIC,
      "spam acl condition: error reading spool file: %s", strerror(errno));
    close(spamd_sock);
    fclose(mbox_file);
    return DEFER;
  }

  fclose(mbox_file);

  /* we're done sending, close socket for writing */
  shutdown(spamd_sock,SHUT_WR);

  /* read spamd response using what's left of the timeout.
   */
  memset(spamd_buffer, 0, sizeof(spamd_buffer));
  offset = 0;
  while((i = ip_recv(spamd_sock,
                     spamd_buffer + offset,
                     sizeof(spamd_buffer) - offset - 1,
                     SPAMD_TIMEOUT - time(NULL) + start)) > 0 ) {
    offset += i;
  }

  /* error handling */
  if((i <= 0) && (errno != 0)) {
    log_write(0, LOG_MAIN|LOG_PANIC,
         "spam acl condition: error reading from spamd socket: %s", strerror(errno));
    close(spamd_sock);
    return DEFER;
  }

  /* reading done */
  close(spamd_sock);

  /* dig in the spamd output and put the report in a multiline header, if requested */
  if( sscanf(CS spamd_buffer,"SPAMD/%s 0 EX_OK\r\nContent-length: %*u\r\n\r\n%lf/%lf\r\n%n",
             spamd_version,&spamd_score,&spamd_threshold,&spamd_report_offset) != 3 ) {

    /* try to fall back to pre-2.50 spamd output */
    if( sscanf(CS spamd_buffer,"SPAMD/%s 0 EX_OK\r\nSpam: %*s ; %lf / %lf\r\n\r\n%n",
               spamd_version,&spamd_score,&spamd_threshold,&spamd_report_offset) != 3 ) {
      log_write(0, LOG_MAIN|LOG_PANIC,
         "spam acl condition: cannot parse spamd output");
      return DEFER;
    };
  };

  /* Create report. Since this is a multiline string,
  we must hack it into shape first */
  p = &spamd_buffer[spamd_report_offset];
  q = spam_report_buffer;
  while (*p != '\0') {
    /* skip \r */
    if (*p == '\r') {
      p++;
      continue;
    };
    *q = *p;
    q++;
    if (*p == '\n') {
      *q = '\t';
      q++;
      /* eat whitespace */
      while( (*p <= ' ') && (*p != '\0') ) {
        p++;
      };
      p--;
    };
    p++;
  };
  /* NULL-terminate */
  *q = '\0';
  q--;
  /* cut off trailing leftovers */
  while (*q <= ' ') {
    *q = '\0';
    q--;
  };
  spam_report = spam_report_buffer;

  /* create spam bar */
  spamd_score_char = spamd_score > 0 ? '+' : '-';
  j = abs((int)(spamd_score));
  i = 0;
  if( j != 0 ) {
    while((i < j) && (i <= MAX_SPAM_BAR_CHARS))
       spam_bar_buffer[i++] = spamd_score_char;
  }
  else{
    spam_bar_buffer[0] = '/';
    i = 1;
  }
  spam_bar_buffer[i] = '\0';
  spam_bar = spam_bar_buffer;

  /* create "float" spam score */
  snprintf(CS spam_score_buffer, sizeof(spam_score_buffer),"%.1f", spamd_score);
  spam_score = spam_score_buffer;

  /* create "int" spam score */
  j = (int)((spamd_score + 0.001)*10);
  snprintf(CS spam_score_int_buffer, sizeof(spam_score_int_buffer), "%d", j);
  spam_score_int = spam_score_int_buffer;

  /* compare threshold against score */
  if (spamd_score >= spamd_threshold) {
    /* spam as determined by user's threshold */
    spam_rc = OK;
  }
  else {
    /* not spam */
    spam_rc = FAIL;
  };

  /* remember user name and "been here" for it */
  Ustrcpy(prev_user_name, user_name);
  spam_ok = 1;

  if (override) {
    /* always return OK, no matter what the score */
    return OK;
  }
  else {
    return spam_rc;
  };
}

#endif
Commit	Line	Data
cfe75fc3	1	/* $Cambridge: exim/src/src/spam.c,v 1.5 2005/04/27 10:00:18 ph10 Exp $ */
8523533c TK	2
	3	/*************************************************
	4	* Exim - an Internet mail transport agent *
	5	*************************************************/
	6
	7	/* Copyright (c) Tom Kistner <tom@duncanthrax.net> 2003-???? */
	8	/* License: GPL */
	9
	10	/* Code for calling spamassassin's spamd. Called from acl.c. */
	11
	12	#include "exim.h"
	13	#ifdef WITH_CONTENT_SCAN
	14	#include "spam.h"
	15
	16	uschar spam_score_buffer[16];
	17	uschar spam_score_int_buffer[16];
	18	uschar spam_bar_buffer[128];
	19	uschar spam_report_buffer[32600];
	20	uschar prev_user_name[128] = "";
	21	int spam_ok = 0;
	22	int spam_rc = 0;
	23
	24	int spam(uschar **listptr) {
	25	int sep = 0;
	26	uschar list = listptr;
	27	uschar *user_name;
	28	uschar user_name_buffer[128];
f7b63901	29	unsigned long mbox_size;
8523533c TK	30	FILE *mbox_file;
	31	int spamd_sock;
	32	uschar spamd_buffer[32600];
cfe75fc3	33	int i, j, offset, result;
8523533c TK	34	uschar spamd_version[8];
	35	uschar spamd_score_char;
	36	double spamd_threshold, spamd_score;
	37	int spamd_report_offset;
	38	uschar p,q;
	39	int override = 0;
cfe75fc3 PH	40	time_t start;
cfe75fc3 PH	41	size_t read, wrote;
8523533c	42	struct sockaddr_un server;
cfe75fc3	43	struct pollfd pollfd;
8523533c TK	44
	45	/* find the username from the option list */
	46	if ((user_name = string_nextinlist(&list, &sep,
	47	user_name_buffer,
	48	sizeof(user_name_buffer))) == NULL) {
	49	/* no username given, this means no scanning should be done */
	50	return FAIL;
	51	};
	52
	53	/* if username is "0" or "false", do not scan */
	54	if ( (Ustrcmp(user_name,"0") == 0) \|\|
	55	(strcmpic(user_name,US"false") == 0) ) {
	56	return FAIL;
	57	};
	58
	59	/* if there is an additional option, check if it is "true" */
	60	if (strcmpic(list,US"true") == 0) {
	61	/* in that case, always return true later */
	62	override = 1;
	63	};
	64
8e669ac1	65	/* if we scanned for this username last time, just return */
8523533c TK	66	if ( spam_ok && ( Ustrcmp(prev_user_name, user_name) == 0 ) ) {
	67	if (override)
	68	return OK;
	69	else
	70	return spam_rc;
	71	};
8e669ac1	72
8523533c TK	73	/* make sure the eml mbox file is spooled up */
8523533c TK	74	mbox_file = spool_mbox(&mbox_size);
8e669ac1	75
8523533c TK	76	if (mbox_file == NULL) {
	77	/* error while spooling */
	78	log_write(0, LOG_MAIN\|LOG_PANIC,
	79	"spam acl condition: error while creating mbox spool file");
	80	return DEFER;
	81	};
	82
cfe75fc3	83	start = time(NULL);
8523533c TK	84	/* socket does not start with '/' -> network socket */
	85	if (*spamd_address != '/') {
	86	time_t now = time(NULL);
	87	int num_servers = 0;
	88	int current_server = 0;
	89	int start_server = 0;
	90	uschar *address = NULL;
	91	uschar *spamd_address_list_ptr = spamd_address;
	92	uschar address_buffer[256];
	93	spamd_address_container * spamd_address_vector[32];
	94
	95	/* Check how many spamd servers we have
	96	and register their addresses */
	97	while ((address = string_nextinlist(&spamd_address_list_ptr, &sep,
	98	address_buffer,
	99	sizeof(address_buffer))) != NULL) {
8e669ac1	100
8523533c TK	101	spamd_address_container *this_spamd =
8523533c TK	102	(spamd_address_container *)store_get(sizeof(spamd_address_container));
8e669ac1	103
8523533c TK	104	/* grok spamd address and port */
	105	if( sscanf(CS address, "%s %u", this_spamd->tcp_addr, &(this_spamd->tcp_port)) != 2 ) {
	106	log_write(0, LOG_MAIN,
	107	"spam acl condition: warning - invalid spamd address: '%s'", address);
	108	continue;
	109	};
8e669ac1	110
8523533c TK	111	spamd_address_vector[num_servers] = this_spamd;
	112	num_servers++;
	113	if (num_servers > 31)
	114	break;
	115	};
8e669ac1	116
8523533c TK	117	/* check if we have at least one server */
	118	if (!num_servers) {
	119	log_write(0, LOG_MAIN\|LOG_PANIC,
	120	"spam acl condition: no useable spamd server addresses in spamd_address configuration option.");
	121	fclose(mbox_file);
	122	return DEFER;
	123	};
	124
	125	current_server = start_server = (int)now % num_servers;
	126
	127	while (1) {
8e669ac1	128
8523533c TK	129	debug_printf("trying server %s, port %u\n",
	130	spamd_address_vector[current_server]->tcp_addr,
	131	spamd_address_vector[current_server]->tcp_port);
8e669ac1	132
8523533c TK	133	/* contact a spamd */
	134	if ( (spamd_sock = ip_socket(SOCK_STREAM, AF_INET)) < 0) {
	135	log_write(0, LOG_MAIN\|LOG_PANIC,
	136	"spam acl condition: error creating IP socket for spamd");
	137	fclose(mbox_file);
8e669ac1	138	return DEFER;
8523533c	139	};
8e669ac1	140
8523533c TK	141	if (ip_connect( spamd_sock,
	142	AF_INET,
	143	spamd_address_vector[current_server]->tcp_addr,
	144	spamd_address_vector[current_server]->tcp_port,
	145	5 ) > -1) {
	146	/* connection OK */
	147	break;
	148	};
8e669ac1	149
8523533c TK	150	log_write(0, LOG_MAIN\|LOG_PANIC,
	151	"spam acl condition: warning - spamd connection to %s, port %u failed: %s",
	152	spamd_address_vector[current_server]->tcp_addr,
	153	spamd_address_vector[current_server]->tcp_port,
	154	strerror(errno));
	155	current_server++;
	156	if (current_server >= num_servers)
	157	current_server = 0;
	158	if (current_server == start_server) {
	159	log_write(0, LOG_MAIN\|LOG_PANIC, "spam acl condition: all spamd servers failed");
	160	fclose(mbox_file);
	161	close(spamd_sock);
	162	return DEFER;
	163	};
	164	};
	165
	166	}
	167	else {
	168	/* open the local socket */
	169
	170	if ((spamd_sock = socket(AF_UNIX, SOCK_STREAM, 0)) < 0) {
	171	log_write(0, LOG_MAIN\|LOG_PANIC,
	172	"malware acl condition: spamd: unable to acquire socket (%s)",
	173	strerror(errno));
	174	fclose(mbox_file);
	175	return DEFER;
	176	}
	177
	178	server.sun_family = AF_UNIX;
	179	Ustrcpy(server.sun_path, spamd_address);
	180
	181	if (connect(spamd_sock, (struct sockaddr *) &server, sizeof(struct sockaddr_un)) < 0) {
	182	log_write(0, LOG_MAIN\|LOG_PANIC,
	183	"malware acl condition: spamd: unable to connect to UNIX socket %s (%s)",
	184	spamd_address, strerror(errno) );
	185	fclose(mbox_file);
	186	close(spamd_sock);
	187	return DEFER;
	188	}
	189
	190	}
	191
	192	/* now we are connected to spamd on spamd_sock */
	193	snprintf(CS spamd_buffer,
	194	sizeof(spamd_buffer),
f7b63901	195	"REPORT SPAMC/1.2\r\nUser: %s\r\nContent-length: %ld\r\n\r\n",
8523533c TK	196	user_name,
	197	mbox_size);
	198
	199	/* send our request */
	200	if (send(spamd_sock, spamd_buffer, Ustrlen(spamd_buffer), 0) < 0) {
	201	close(spamd_sock);
	202	log_write(0, LOG_MAIN\|LOG_PANIC,
	203	"spam acl condition: spamd send failed: %s", strerror(errno));
	204	fclose(mbox_file);
	205	close(spamd_sock);
	206	return DEFER;
	207	};
	208
	209	/* now send the file */
cfe75fc3 PH	210	/* spamd sometimes accepts conections but doesn't read data off
	211	* the connection. We make the file descriptor non-blocking so
	212	* that the write will only write sufficient data without blocking
	213	* and we poll the desciptor to make sure that we can write without
	214	* blocking. Short writes are gracefully handled and if the whole
	215	* trasaction takes too long it is aborted.
	216	*/
	217	pollfd.fd = spamd_sock;
	218	pollfd.events = POLLOUT;
	219	fcntl(spamd_sock, F_SETFL, O_NONBLOCK);
8523533c	220	do {
cfe75fc3 PH	221	read = fread(spamd_buffer,1,sizeof(spamd_buffer),mbox_file);
	222	if (read > 0) {
	223	offset = 0;
	224	again:
	225	result = poll(&pollfd, 1, 1000);
	226	if (result == -1 && errno == EINTR)
	227	continue;
	228	else if (result < 1) {
	229	if (result == -1)
	230	log_write(0, LOG_MAIN\|LOG_PANIC,
	231	"spam acl condition: %s on spamd socket", strerror(errno));
	232	else {
	233	if (time(NULL) - start < SPAMD_TIMEOUT)
	234	goto again;
	235	log_write(0, LOG_MAIN\|LOG_PANIC,
	236	"spam acl condition: timed out writing spamd socket");
	237	}
8523533c TK	238	close(spamd_sock);
	239	fclose(mbox_file);
	240	return DEFER;
cfe75fc3 PH	241	}
	242	wrote = send(spamd_sock,spamd_buffer + offset,read - offset,0);
	243	if (offset + wrote != read) {
	244	offset += wrote;
	245	goto again;
	246	}
	247	}
	248	}
	249	while (!feof(mbox_file) && !ferror(mbox_file));
	250	if (ferror(mbox_file)) {
	251	log_write(0, LOG_MAIN\|LOG_PANIC,
	252	"spam acl condition: error reading spool file: %s", strerror(errno));
	253	close(spamd_sock);
	254	fclose(mbox_file);
	255	return DEFER;
8523533c	256	}
8523533c TK	257
	258	fclose(mbox_file);
	259
	260	/* we're done sending, close socket for writing */
	261	shutdown(spamd_sock,SHUT_WR);
8e669ac1	262
cfe75fc3 PH	263	/* read spamd response using what's left of the timeout.
cfe75fc3 PH	264	*/
8523533c TK	265	memset(spamd_buffer, 0, sizeof(spamd_buffer));
	266	offset = 0;
	267	while((i = ip_recv(spamd_sock,
	268	spamd_buffer + offset,
	269	sizeof(spamd_buffer) - offset - 1,
cfe75fc3	270	SPAMD_TIMEOUT - time(NULL) + start)) > 0 ) {
8523533c TK	271	offset += i;
	272	}
	273
	274	/* error handling */
	275	if((i <= 0) && (errno != 0)) {
	276	log_write(0, LOG_MAIN\|LOG_PANIC,
	277	"spam acl condition: error reading from spamd socket: %s", strerror(errno));
	278	close(spamd_sock);
	279	return DEFER;
	280	}
	281
	282	/* reading done */
	283	close(spamd_sock);
	284
	285	/* dig in the spamd output and put the report in a multiline header, if requested */
	286	if( sscanf(CS spamd_buffer,"SPAMD/%s 0 EX_OK\r\nContent-length: %*u\r\n\r\n%lf/%lf\r\n%n",
	287	spamd_version,&spamd_score,&spamd_threshold,&spamd_report_offset) != 3 ) {
8e669ac1	288
8523533c TK	289	/* try to fall back to pre-2.50 spamd output */
	290	if( sscanf(CS spamd_buffer,"SPAMD/%s 0 EX_OK\r\nSpam: %*s ; %lf / %lf\r\n\r\n%n",
	291	spamd_version,&spamd_score,&spamd_threshold,&spamd_report_offset) != 3 ) {
	292	log_write(0, LOG_MAIN\|LOG_PANIC,
	293	"spam acl condition: cannot parse spamd output");
	294	return DEFER;
	295	};
	296	};
	297
	298	/* Create report. Since this is a multiline string,
	299	we must hack it into shape first */
	300	p = &spamd_buffer[spamd_report_offset];
	301	q = spam_report_buffer;
	302	while (*p != '\0') {
	303	/* skip \r */
	304	if (*p == '\r') {
	305	p++;
	306	continue;
	307	};
	308	q = p;
	309	q++;
	310	if (*p == '\n') {
	311	*q = '\t';
	312	q++;
	313	/* eat whitespace */
	314	while( (p <= ' ') && (p != '\0') ) {
	315	p++;
	316	};
	317	p--;
	318	};
	319	p++;
	320	};
	321	/* NULL-terminate */
	322	*q = '\0';
	323	q--;
	324	/* cut off trailing leftovers */
	325	while (*q <= ' ') {
	326	*q = '\0';
	327	q--;
	328	};
	329	spam_report = spam_report_buffer;
	330
	331	/* create spam bar */
	332	spamd_score_char = spamd_score > 0 ? '+' : '-';
	333	j = abs((int)(spamd_score));
	334	i = 0;
	335	if( j != 0 ) {
	336	while((i < j) && (i <= MAX_SPAM_BAR_CHARS))
	337	spam_bar_buffer[i++] = spamd_score_char;
	338	}
	339	else{
	340	spam_bar_buffer[0] = '/';
	341	i = 1;
	342	}
	343	spam_bar_buffer[i] = '\0';
	344	spam_bar = spam_bar_buffer;
	345
	346	/* create "float" spam score */
	347	snprintf(CS spam_score_buffer, sizeof(spam_score_buffer),"%.1f", spamd_score);
	348	spam_score = spam_score_buffer;
	349
	350	/* create "int" spam score */
	351	j = (int)((spamd_score + 0.001)*10);
	352	snprintf(CS spam_score_int_buffer, sizeof(spam_score_int_buffer), "%d", j);
353	spam_score_int = spam_score_int_buffer;
354
355	/* compare threshold against score */
356	if (spamd_score >= spamd_threshold) {
357	/* spam as determined by user's threshold */
358	spam_rc = OK;
359	}
360	else {
361	/* not spam */
362	spam_rc = FAIL;
363	};
8e669ac1	364
8523533c TK	365	/* remember user name and "been here" for it */
	366	Ustrcpy(prev_user_name, user_name);
	367	spam_ok = 1;
8e669ac1	368
8523533c TK	369	if (override) {
	370	/* always return OK, no matter what the score */
	371	return OK;
	372	}
	373	else {
	374	return spam_rc;
	375	};
	376	}
	377
	378	#endif