int
msgmod_change_header(void *ctx, int argc, var_t *args[])
{
char *headerf;
char *headerv;
long index = 1;
if (argc < 2 || argc > 3)
{
log_error("msgmod_change_header: bad argument count");
return -1;
}
headerf = args[0]->v_data;
headerv = args[1]->v_data;
if (argc == 3)
{
index = atol(args[2]->v_data);
}
if (smfi_chgheader(ctx, headerf, index, headerv) != MI_SUCCESS)
{
log_error("msgmod_change_header: smfi_chgheader failed");
return -1;
}
log_debug("msgmod_change_header: %s: %s (%d)", headerf, headerv,
index);
return 0;
}
static void add_x_header(SMFICTX *ctx, char *st, unsigned int scanned, unsigned int status) {
if(addxvirus == 1) { /* Replace/Yes */
while(scanned)
if(smfi_chgheader(ctx, (char *)"X-Virus-Scanned", scanned--, NULL) != MI_SUCCESS)
logg("^Failed to remove existing X-Virus-Scanned header\n");
while(status)
if(smfi_chgheader(ctx, (char *)"X-Virus-Status", status--, NULL) != MI_SUCCESS)
logg("^Failed to remove existing X-Virus-Status header\n");
if(smfi_addheader(ctx, (char *)"X-Virus-Scanned", xvirushdr) != MI_SUCCESS)
logg("^Failed to add X-Virus-Scanned header\n");
if(smfi_addheader(ctx, (char *)"X-Virus-Status", st) != MI_SUCCESS)
logg("^Failed to add X-Virus-Status header\n");
} else { /* Add */
if(smfi_insheader(ctx, 1, (char *)"X-Virus-Scanned", xvirushdr) != MI_SUCCESS)
logg("^Failed to insert X-Virus-Scanned header\n");
if(smfi_insheader(ctx, 1, (char *)"X-Virus-Status", st) != MI_SUCCESS)
logg("^Failed to insert X-Virus-Status header\n");
}
}
static sfsistat test_eom(SMFICTX *ctx)
{
printf("test_eom\n");
#ifdef SMFIR_REPLBODY
if (body_file) {
char buf[BUFSIZ + 2];
FILE *fp;
size_t len;
int count;
if ((fp = fopen(body_file, "r")) == 0) {
perror(body_file);
} else {
printf("replace body with content of %s\n", body_file);
for (count = 0; fgets(buf, BUFSIZ, fp) != 0; count++) {
len = strcspn(buf, "\n");
buf[len + 0] = '\r';
buf[len + 1] = '\n';
if (smfi_replacebody(ctx, buf, len + 2) == MI_FAILURE) {
fprintf(stderr, "body replace failure\n");
exit(1);
}
if (verbose)
printf("%.*s\n", (int) len, buf);
}
if (count == 0)
perror("fgets");
(void) fclose(fp);
}
}
#endif
#ifdef SMFIR_CHGFROM
if (chg_from != 0 && smfi_chgfrom(ctx, chg_from, "whatever") == MI_FAILURE)
fprintf(stderr, "smfi_chgfrom failed\n");
#endif
#ifdef SMFIR_INSHEADER
if (ins_hdr && smfi_insheader(ctx, ins_idx, ins_hdr, ins_val) == MI_FAILURE)
fprintf(stderr, "smfi_insheader failed\n");
#endif
#ifdef SMFIR_CHGHEADER
if (chg_hdr && smfi_chgheader(ctx, chg_hdr, chg_idx, chg_val) == MI_FAILURE)
fprintf(stderr, "smfi_chgheader failed\n");
#endif
{
int count;
for (count = 0; count < rcpt_count; count++)
if (smfi_addrcpt(ctx, rcpt_addr[count]) == MI_FAILURE)
fprintf(stderr, "smfi_addrcpt `%s' failed\n", rcpt_addr[count]);
}
return (test_reply(ctx, test_eom_reply));
}
/*}}}*/
} priv_t;
static char *
xfree (char *s) /*{{{*/
{
if (s)
free (s);
return NULL;
}/*}}}*/
static bool_t
xcopy (char **buf, const char *str) /*{{{*/
{
if (*buf)
free (*buf);
*buf = str ? strdup (str) : NULL;
return (! str) || *buf ? true : false;
}/*}}}*/
static void
priv_clear (priv_t *p) /*{{{*/
{
if (p) {
p -> x_agn = 0;
p -> from = xfree (p -> from);
p -> receiver = charc_free_all (p -> receiver);
p -> prev = NULL;
p -> info = xfree (p -> info);
}
}/*}}}*/
static priv_t *
priv_free (priv_t *p) /*{{{*/
{
if (p) {
priv_clear (p);
if (p -> lg)
log_free (p -> lg);
if (p -> cfg)
cfg_free (p -> cfg);
free (p);
}
return NULL;
}/*}}}*/
static priv_t *
priv_alloc (void) /*{{{*/
{
priv_t *p;
if (p = (priv_t *) malloc (sizeof (priv_t)))
if (p -> cfg = cfg_alloc (cfgfile)) {
p -> is_local = false;
p -> x_agn = 0;
p -> from = NULL;
p -> receiver = NULL;
p -> prev = NULL;
p -> info = NULL;
if (! (p -> lg = log_alloc (NULL, program, loglevel)))
p = priv_free (p);
} else {
free (p);
p = NULL;
}
return p;
}/*}}}*/
static bool_t
priv_setfrom (priv_t *p, const char *from) /*{{{*/
{
return xcopy (& p -> from, from);
}/*}}}*/
static bool_t
priv_setto (priv_t *p, const char *to) /*{{{*/
{
charc_t *r;
if (r = charc_alloc (to)) {
if (p -> prev)
p -> prev -> next = r;
else
p -> receiver = r;
p -> prev = r;
}
return r ? true : false;
}/*}}}*/
static bool_t
priv_addinfo (priv_t *p, const char *info) /*{{{*/
{
char *temp;
if ((! p -> info) || (! p -> info[0]))
return xcopy (& p -> info, info);
if (temp = malloc (strlen (p -> info) + strlen (info) + 2)) {
sprintf (temp, "%s,%s", p -> info, info);
free (p -> info);
p -> info = temp;
return true;
}
return false;
}/*}}}*/
static bool_t
priv_addinfopair (priv_t *p, const char *var, const char *val) /*{{{*/
{
bool_t rc;
char *scratch, *ptr;
if (scratch = malloc (strlen (var) + strlen (val) + 2)) {
for (ptr = scratch; *var; *ptr++ = *var++)
;
*ptr++ = '=';
for (;*val; ++val)
*ptr++ = *val == ',' ? '_' : *val;
*ptr = '\0';
rc = priv_addinfo (p, scratch);
free (scratch);
} else
rc = false;
return rc;
}/*}}}*/
static sfsistat
handle_connect (SMFICTX *ctx, char *hostname, _SOCK_ADDR *hostaddr) /*{{{*/
{
priv_t *p;
if (! (p = priv_alloc ()))
return SMFIS_TEMPFAIL;
if (hostaddr -> sa_family == AF_INET) {
struct sockaddr_in *iaddr = (struct sockaddr_in *) hostaddr;
if (ntohl (iaddr -> sin_addr.s_addr) == INADDR_LOOPBACK)
p -> is_local = true;
}
# ifdef AF_INET6
else if (hostaddr -> sa_family == AF_INET6) {
struct sockaddr_in6 *i6addr = (struct sockaddr_in6 *) hostaddr;
static struct in6_addr loopback = IN6ADDR_LOOPBACK_INIT;
if (memcmp (& i6addr -> sin6_addr, & loopback, sizeof (i6addr -> sin6_addr)) == 0)
p -> is_local = true;
}
# endif /* AF_INET6 */
smfi_setpriv (ctx, p);
return SMFIS_CONTINUE;
}/*}}}*/
static sfsistat
handle_from (SMFICTX *ctx, char **argv) /*{{{*/
{
priv_t *p = (priv_t *) smfi_getpriv (ctx);
if (! p)
return SMFIS_TEMPFAIL;
priv_clear (p);
if (! priv_setfrom (p, argv[0]))
return SMFIS_TEMPFAIL;
priv_addinfopair (p, "from", argv[0]);
return SMFIS_CONTINUE;
}/*}}}*/
static sfsistat
handle_to (SMFICTX *ctx, char **argv) /*{{{*/
{
priv_t *p = (priv_t *) smfi_getpriv (ctx);
char *chk, *opt;
bool_t reject, tempfail;
if (! p)
return SMFIS_TEMPFAIL;
if (p -> is_local)
return SMFIS_CONTINUE;
if (! (chk = cfg_valid_address (p -> cfg, argv[0]))) {
log_out (p -> lg, LV_ERROR, "Unable to setup initial data for `%s'", argv[0]);
return SMFIS_TEMPFAIL;
}
if (opt = strchr (chk, ':'))
*opt++ = '\0';
reject = false;
tempfail = false;
if (! strcmp (chk, ID_REJECT))
reject = true;
else if (! strcmp (chk, ID_TEMPFAIL))
tempfail = true;
else if ((! strcmp (chk, ID_ACCEPT)) && opt)
priv_addinfo (p, opt);
priv_addinfopair (p, "to", argv[0]);
free (chk);
if (reject) {
log_out (p -> lg, LV_INFO, "Receiver `%s' is rejected", argv[0]);
smfi_setreply (ctx, (char *) "550", (char *) "5.1.1", (char *) "No such user");
return SMFIS_REJECT;
}
if (tempfail) {
log_out (p -> lg, LV_INFO, "Receiver `%s' is temp. disbaled", argv[0]);
smfi_setreply (ctx, (char *) "400", (char *) "4.0.0", (char *) "Please try again later");
return SMFIS_TEMPFAIL;
}
if (! priv_setto (p, argv[0]))
return SMFIS_TEMPFAIL;
return SMFIS_CONTINUE;
}/*}}}*/
static sfsistat
handle_header (SMFICTX *ctx, char *field, char *value) /*{{{*/
{
priv_t *p = (priv_t *) smfi_getpriv (ctx);
if (! p)
return SMFIS_TEMPFAIL;
if (p -> is_local)
return SMFIS_CONTINUE;
if (! strcasecmp (field, X_LOOP)) {
log_out (p -> lg, LV_WARNING, "Mail from `%s' has already loop marker set, rejected", p -> from);
smfi_setreply (ctx, (char *) "500", (char *) "5.4.6", (char *) "Loop detected");
return SMFIS_REJECT;
}
if (! strcasecmp (field, X_AGN))
p -> x_agn++;
return SMFIS_CONTINUE;
}/*}}}*/
static sfsistat
handle_eom (SMFICTX *ctx) /*{{{*/
{
priv_t *p = (priv_t *) smfi_getpriv (ctx);
int n;
if (! p)
return SMFIS_TEMPFAIL;
for (n = 0; n < p -> x_agn; ++n)
smfi_chgheader (ctx, (char *) X_AGN, 0, NULL);
if (! p -> is_local) {
if (p -> info)
smfi_addheader (ctx, (char *) X_AGN, p -> info);
smfi_addheader (ctx, (char *) X_LOOP, (char *) LOOP_SET);
}
return SMFIS_CONTINUE;
}/*}}}*/
int
msgmod_delete_header(void *ctx, int argc, var_t *args[])
{
char *headerf;
if (argc != 1)
{
log_error("msgmod_delete_header: bad argument count");
return -1;
}
headerf = args[0]->v_data;
if (smfi_chgheader(ctx, headerf, 1, NULL) != MI_SUCCESS)
{
log_error("msgmod_delete_header: smfi_chgheader failed");
return -1;
}
log_debug("msgmod_delete_header: %s (1)", headerf);
return 0;
}