|KJSON_STRING_OPEN(3)||Library Functions Manual||KJSON_STRING_OPEN(3)|
kjson_stringp_open — open
string scope for kcgijson
*req, const char *name);
Open an string scope in a context req initialised with khtml_open(3). Scopes are closed with kjson_string_close(3) or kjson_close(3). String scopes are open strings that may be filled in with further kjson_string_puts(3) and family functions.
form is for array scopes, while
value to name for
is equivalent to calling
Returns an enum kcgi_err indicating the error state.
- Success (not an error).
- Internal memory allocation failure, including reaching the maximum number of possible JSON scopes.
- The output connection has been terminated. For FastCGI connections, the current connection should be released with khttp_free(3) and parse loop reentered.
- The connection is still expecting headers with khttp_head(3). Indicates that khttp_body(3) did not return with success or was not invoked. For FastCGI connections, the current connection should be released with khttp_free(3) and parse loop reentered.
- Internal system error writing to the output stream.
- The incorrect form was used for the current scope, for example, an array-type write within an object.
The following outputs a simple JSON document. It assumes r is a struct kreq pointer. For brevity, it does not do any error checking.
khttp_head(r, kresps[KRESP_STATUS], "%s", khttps[KHTTP_200]); khttp_head(r, kresps[KRESP_CONTENT_TYPE], "%s", kmimetypes[KMIME_APP_JSON]); khttp_body(r); kjson_open(&req, r); kjson_string_open(&req); kjson_string_puts(&req, "Hello, "); kjson_string_puts(&req, "world."); kjson_close(&req);
Written by Kristaps Dzonsons <firstname.lastname@example.org>.
|September 23, 2021||OpenBSD 6.7|