/**
* Parse an HTTP parameter
*
* \param input Pointer to current input byte. Updated on exit.
* \param parameter Pointer to location to receive on-heap parameter.
* \return NSERROR_OK on success,
* NSERROR_NOMEM on memory exhaustion
*
* The returned parameter is owned by the caller.
*/
static nserror http_parse_parameter(const char **input,
http_parameter **parameter)
{
const char *pos = *input;
char *name;
char *value;
http_parameter *param;
nserror error;
/* token "=" ( token | quoted-string ) */
error = http_parse_token(&pos, &name);
if (error != NSERROR_OK)
return error;
while (*pos == ' ' || *pos == '\t')
pos++;
if (*pos != '=') {
value = strdup("");
if (value == NULL) {
free(name);
return NSERROR_NOMEM;
}
} else {
pos++;
while (*pos == ' ' || *pos == '\t')
pos++;
if (*pos == '"')
error = http_parse_quoted_string(&pos, &value);
else
error = http_parse_token(&pos, &value);
if (error != NSERROR_OK) {
free(name);
return error;
}
}
param = malloc(sizeof(*param));
if (param == NULL) {
free(value);
free(name);
return NSERROR_NOMEM;
}
param->next = NULL;
param->name = name;
param->value = value;
*parameter = param;
*input = pos;
return NSERROR_OK;
}
int http_parse_token_or_qstring(struct http_parser *parser,
const char **word_r)
{
if (parser->cur >= parser->end)
return 0;
if (parser->cur[0] == '"')
return http_parse_quoted_string(parser, word_r);
return http_parse_token(parser, word_r);
}
