static void
put_membuf (assuan_context_t ctx,
struct membuf *mb, const void *buf, size_t len)
{
if (mb->out_of_core || mb->too_large)
return;
if (mb->maxlen && mb->len + len > mb->maxlen)
{
mb->too_large = 1;
return;
}
if (mb->len + len >= mb->size)
{
char *p;
mb->size += len + 1024;
/* we need to allocate one byte more for get_membuf */
p = _assuan_realloc (ctx, mb->buf, mb->size + 1);
if (!p)
{
mb->out_of_core = 1;
return;
}
mb->buf = p;
}
memcpy (mb->buf + mb->len, buf, len);
mb->len += len;
}
/**
* assuan_register_command:
* @ctx: the server context
* @cmd_name: A string with the command name
* @handler: The handler function to be called or NULL to use a default
* handler.
* HELPSTRING
*
* Register a handler to be used for a given command. Note that
* several default handlers are already regsitered with a new context.
* This function however allows to override them.
*
* Return value: 0 on success or an error code
**/
gpg_error_t
assuan_register_command (assuan_context_t ctx, const char *cmd_name,
assuan_handler_t handler, const char *help_string)
{
int i, cmd_index = -1;
const char *s;
if (cmd_name && !*cmd_name)
cmd_name = NULL;
if (!cmd_name)
return _assuan_error (ctx, GPG_ERR_ASS_INV_VALUE);
if (!handler)
{ /* find a default handler. */
for (i=0; (s=std_cmd_table[i].name) && strcmp (cmd_name, s); i++)
;
if (!s)
{ /* Try again but case insensitive. */
for (i=0; (s=std_cmd_table[i].name)
&& my_strcasecmp (cmd_name, s); i++)
;
}
if (s)
handler = std_cmd_table[i].handler;
if (!handler)
handler = dummy_handler; /* Last resort is the dummy handler. */
}
if (!ctx->cmdtbl)
{
ctx->cmdtbl_size = 50;
ctx->cmdtbl = _assuan_calloc (ctx, ctx->cmdtbl_size, sizeof *ctx->cmdtbl);
if (!ctx->cmdtbl)
return _assuan_error (ctx, gpg_err_code_from_syserror ());
ctx->cmdtbl_used = 0;
}
else if (ctx->cmdtbl_used >= ctx->cmdtbl_size)
{
struct cmdtbl_s *x;
x = _assuan_realloc (ctx, ctx->cmdtbl, (ctx->cmdtbl_size+10) * sizeof *x);
if (!x)
return _assuan_error (ctx, gpg_err_code_from_syserror ());
ctx->cmdtbl = x;
ctx->cmdtbl_size += 50;
}
for (i=0; i<ctx->cmdtbl_used; i++)
{
if (!my_strcasecmp (cmd_name, ctx->cmdtbl[i].name))
{
cmd_index = i;
break;
}
}
if (cmd_index == -1)
cmd_index = ctx->cmdtbl_used++;
ctx->cmdtbl[cmd_index].name = cmd_name;
ctx->cmdtbl[cmd_index].handler = handler;
ctx->cmdtbl[cmd_index].helpstr = help_string;
return 0;
}