static int
pdkim_header_complete(pdkim_ctx *ctx)
{
/* Special case: The last header can have an extra \r appended */
if ( (ctx->cur_header->len > 1) &&
(ctx->cur_header->str[(ctx->cur_header->len)-1] == '\r') )
{
ctx->cur_header->str[(ctx->cur_header->len)-1] = '\0';
ctx->cur_header->len--;
}
ctx->num_headers++;
if (ctx->num_headers > PDKIM_MAX_HEADERS) goto BAIL;
/* SIGNING -------------------------------------------------------------- */
if (ctx->mode == PDKIM_MODE_SIGN)
{
pdkim_signature *sig;
for (sig = ctx->sig; sig; sig = sig->next) /* Traverse all signatures */
if (header_name_match(ctx->cur_header->str,
sig->sign_headers?
sig->sign_headers:
PDKIM_DEFAULT_SIGN_HEADERS, 0) == PDKIM_OK)
{
pdkim_stringlist *list;
/* Add header to the signed headers list (in reverse order) */
if (!(list = pdkim_prepend_stringlist(sig->headers,
ctx->cur_header->str)))
return PDKIM_ERR_OOM;
sig->headers = list;
}
}
/* VERIFICATION ----------------------------------------------------------- */
/* DKIM-Signature: headers are added to the verification list */
if (ctx->mode == PDKIM_MODE_VERIFY)
{
if (strncasecmp(ctx->cur_header->str,
DKIM_SIGNATURE_HEADERNAME,
strlen(DKIM_SIGNATURE_HEADERNAME)) == 0)
{
pdkim_signature *new_sig;
/* Create and chain new signature block */
DEBUG(D_acl) debug_printf(
"PDKIM >> Found sig, trying to parse >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>\n");
if ((new_sig = pdkim_parse_sig_header(ctx, ctx->cur_header->str)))
{
pdkim_signature *last_sig = ctx->sig;
if (!last_sig)
ctx->sig = new_sig;
else
{
while (last_sig->next) last_sig = last_sig->next;
last_sig->next = new_sig;
}
}
else
DEBUG(D_acl) debug_printf(
"Error while parsing signature header\n"
"PDKIM <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<\n");
}
/* every other header is stored for signature verification */
else
{
pdkim_stringlist *list;
if (!(list = pdkim_prepend_stringlist(ctx->headers, ctx->cur_header->str)))
return PDKIM_ERR_OOM;
ctx->headers = list;
}
}
BAIL:
pdkim_strclear(ctx->cur_header); /* Re-use existing pdkim_str */
return PDKIM_OK;
}
static int
pdkim_header_complete(pdkim_ctx *ctx)
{
/* Special case: The last header can have an extra \r appended */
if ( (ctx->cur_header_len > 1) &&
(ctx->cur_header[(ctx->cur_header_len)-1] == '\r') )
--ctx->cur_header_len;
ctx->cur_header[ctx->cur_header_len] = '\0';
ctx->num_headers++;
if (ctx->num_headers > PDKIM_MAX_HEADERS) goto BAIL;
/* SIGNING -------------------------------------------------------------- */
if (ctx->mode == PDKIM_MODE_SIGN)
{
pdkim_signature *sig;
for (sig = ctx->sig; sig; sig = sig->next) /* Traverse all signatures */
/* Add header to the signed headers list (in reverse order) */
sig->headers = pdkim_prepend_stringlist(sig->headers,
ctx->cur_header);
}
/* VERIFICATION ----------------------------------------------------------- */
/* DKIM-Signature: headers are added to the verification list */
if (ctx->mode == PDKIM_MODE_VERIFY)
{
if (strncasecmp(CCS ctx->cur_header,
DKIM_SIGNATURE_HEADERNAME,
Ustrlen(DKIM_SIGNATURE_HEADERNAME)) == 0)
{
pdkim_signature *new_sig;
/* Create and chain new signature block */
DEBUG(D_acl) debug_printf(
"PDKIM >> Found sig, trying to parse >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>\n");
if ((new_sig = pdkim_parse_sig_header(ctx, ctx->cur_header)))
{
pdkim_signature *last_sig = ctx->sig;
if (!last_sig)
ctx->sig = new_sig;
else
{
while (last_sig->next) last_sig = last_sig->next;
last_sig->next = new_sig;
}
}
else
DEBUG(D_acl) debug_printf(
"Error while parsing signature header\n"
"PDKIM <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<\n");
}
/* every other header is stored for signature verification */
else
ctx->headers = pdkim_prepend_stringlist(ctx->headers, ctx->cur_header);
}
BAIL:
*ctx->cur_header = '\0';
ctx->cur_header_len = 0; /* leave buffer for reuse */
return PDKIM_OK;
}
