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N_GUI_TREE_STATE Struct N_GUI_WIDGET Struct N_GUI_WINDOW Struct N_H2_FRAME Struct N_H2_HEADER Struct N_H2_HPACK Struct N_H2_REQUEST Struct N_H2_SERVER Struct N_H2_SETTING Struct N_HTML_ATTR_ Struct N_HTML_FORM Struct N_HTML_TAG_ Struct N_HTTP3_RESPONSE Struct N_HTTP_FIELD Struct N_HTTP_FORM Struct N_HTTP_FORM_MULTIPART Struct N_HTTP_FORM_PART Struct N_HTTP_MULTIPART_PART Struct N_HTTP_REQUEST Struct N_HTTP_RESP Struct N_HTTP_RESPONSE Struct N_HTTP_SERVER Struct N_HTTP_SERVER_CONFIG Struct N_HTTP_SERVER_REQUEST Struct N_HTTP_SERVER_STATS Struct N_HTTP_SET_COOKIE Struct N_HTTP_STREAM Struct N_ISO_CAMERA Struct N_ISO_OBJECT Struct N_KAFKA Struct N_KAFKA_EVENT Struct N_MOCK_SERVER Struct N_MODULE Struct N_PARALLEL_SLICE Struct N_PARALLEL_TEAM Struct N_PARALLEL_WORKER Struct N_PCRE Struct N_PROXY_CFG Struct N_PTH Struct N_PTH_TENSOR Struct N_QUERY Struct N_ROUTE Struct N_ROUTER Struct N_ROUTE_MATCH Struct N_SHA256 Struct N_SOCKET Struct N_SPAWN_PIPE Struct N_SSE_CONN Struct N_SSE_EVENT Struct N_STR Struct N_TIFF Struct N_TIFF_ENTRY Struct N_TIME Struct N_URL Struct N_URL_PARAM Struct N_USER Struct N_USERLIST Struct N_WS_CONN Struct N_WS_FRAME Struct N_WS_MESSAGE Struct N_ZIP_MEMBER Struct OCTREE Struct OCTREE_NODE Struct PARSER Struct PARTICLE Struct PARTICLE_EMITTER Struct PARTICLE_SYSTEM Struct PEER Struct PHYSICS Struct PK_OBJ Struct PK_VM Struct POINT2D Struct POINT3D Struct PRETTY_OUT Struct QNODE Struct QUADTREE Struct QUADTREE_NODE Struct REC Struct RGB Struct SAMPLE Struct SEEN Struct SHARER Struct SRV Struct SRV_ARG Struct STACK Struct STACK_ITEM Struct SYNTAX_RUN Struct THREAD_POOL Struct THREAD_POOL_NODE Struct THREAD_WAITING_PROC Struct TRAJECTORY Struct TRAJECTORY_POINT Struct TREE Struct TREE_NODE Struct TS_LOG Struct WAYPOINT3D Struct WORKER_ARG Struct ZIP_SINK Struct _N_DC_ENTRY Struct _N_DC_GROUP_ENTRY Struct _N_GUI_COLORWHEEL Struct _N_GUI_COLORWHEEL_BLOCK Struct _N_GUI_COLORWHEEL_MOUSE Struct _N_GUI_CURVE Struct _N_GUI_CURVE_BLOCK Struct _N_GUI_CURVE_MOUSE Struct _N_GUI_GRID Struct _N_GUI_POPUP_ENTRY Struct _N_GUI_POPUP_LEVEL Struct _N_GUI_SB_SKIN Struct _N_GUI_TA_STEP Struct _N_GUI_THUMB Struct _N_GUI_WRAP_ACC Struct _compiled Struct _conn Struct _ip_slot Struct _mp_param Struct _n_civil Struct _seg Struct client Struct collector Struct date_vector Struct md_atom Struct md_cells Struct md_hit Struct md_line_ctx Struct mline Struct n_http_req_header Struct n_http_req_limits Struct n_http_request Struct n_markdown_block Struct n_markdown_doc Struct n_markdown_inline Struct n_markdown_span Struct n_reactor_stats Struct n_url_safe Struct n_url_safe_head Struct n_wrap_item Struct producer_state Struct rects Struct reply Struct runner Struct sink Struct tbuf Struct wrap_hit Struct wrap_span Structures Union COORD_VALUE Union HASH_DATA Union NODE_DATA_TYPES Union STACK_DATA dir_310dcdd4703e877a6b99d5dc3fc54d27 dir_68267d1309a1af8e8297ef4c3efbcdba dir_d28a4824dc47e487b107a5db32ef43c4 dir_d44c64559bbebec7f509842c48db8b23 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ex_gui_dropmenu_8c example ex_gui_frameless_drag_8c example ex_gui_global_scroll_8c example ex_gui_glyph_8c example ex_gui_grid_8c example ex_gui_hexview_8c example ex_gui_hover_8c example ex_gui_isometric_8c example ex_gui_kvtable_8c example ex_gui_label_fits_8c example ex_gui_label_lines_8c example ex_gui_layout_persist_8c example ex_gui_listbox_8c example ex_gui_md_8c example ex_gui_multiwin_8c example ex_gui_network_8c example ex_gui_particles_8c example ex_gui_placeholder_8c example ex_gui_popup_8c example ex_gui_progressbar_8c example ex_gui_reentrant_8c example ex_gui_round_8c example ex_gui_sectionlist_8c example ex_gui_slider_default_8c example ex_gui_slider_handle_8c example ex_gui_slider_step_8c example ex_gui_splitpane_8c example ex_gui_suggest_8c example ex_gui_syntaxview_8c example ex_gui_text_shorten_8c example ex_gui_textarea_selection_8c example ex_gui_tooltip_8c example ex_gui_tree_lazy_8c example ex_gui_tree_order_8c example ex_gui_tree_state_8c example ex_gui_window_rect_8c example ex_gui_zorder_8c example ex_hash_8c example ex_hex_8c example ex_html_8c example ex_http2_8c example ex_http2_server_8c example ex_http_cookie_8c example ex_http_form_8c example ex_http_mime_8c example ex_http_req_8c example ex_http_response_8c example ex_http_router_8c example ex_http_server_8c example ex_icc_8c example ex_iso_astar_8c example ex_json_8c example ex_kafka_8c example ex_linalg_8c example ex_list_8c example ex_log_8c example ex_markdown_8c example ex_module_8c example ex_monolith_8c example ex_network_8c example ex_network_8h example ex_network_accept_8c example ex_network_alpn_8c example ex_network_connect_abort_8c example ex_network_mock_8c example ex_network_proxy_8c example ex_network_reactor_8c example ex_network_sni_8c example ex_network_sse_8c example ex_network_ssl_8c example ex_network_ssl_hardened_8c example ex_network_ssl_hostname_8c example ex_network_ssl_nonblock_8c example ex_network_tls_defaults_8c example ex_network_ws_8c example ex_network_ws_limits_8c example ex_nstr_8c example ex_parallel_for_8c example ex_parallel_team_8c example ex_pcre_8c example ex_pretty_8c example ex_pth_8c example ex_query_8c example ex_random_8c example ex_sha256_8c example ex_signals_8c example ex_spawn_8c example ex_ssrf_8c example ex_stack_8c example ex_threads_8c example ex_tiff_8c example ex_time_formats_8c example ex_trajectory_8c example ex_trees_8c example ex_url_8c example ex_url_safe_8c example ex_wrap_8c example ex_x509_8c example ex_zip_8c example ex_zlib_8c example mainpage_8dox n__3d_8c n__3d_8h n__aabb_8c n__aabb_8h n__allegro5_8c n__allegro5_8h n__allegro__4_8c n__allegro__4_8h n__anim_8c n__anim_8h n__astar_8c n__astar_8h n__atlas_8c n__atlas_8h n__avro_8c n__avro_8h n__base64_8c n__base64_8h n__clipboard_8c n__clipboard_8h n__clock__sync_8c n__clock__sync_8h n__common_8c n__common_8h n__config__file_8c n__config__file_8h n__cookies_8c n__cookies_8h n__crypto_8c n__crypto_8h n__dead__reckoning_8c 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2 Module N_HTTP_COOKIE
gullradriel edited this page 2026-10-29 20:54:40 +01:00
Table of Contents

HTTP COOKIES: server-side Cookie reading and Set-Cookie building

Structures

Name
struct N_HTTP_SET_COOKIE
what a Set-Cookie should carry

Types

Name
enum N_HTTP_SAMESITE { N_HTTP_SAMESITE_UNSET = 0, N_HTTP_SAMESITE_STRICT = 2, N_HTTP_SAMESITE_NONE = 3, N_HTTP_SAMESITE_LAX = 1}
SameSite attribute of a Set-Cookie.

Functions

Name
int n_http_set_cookie_build(N_STR ** out, const N_HTTP_SET_COOKIE * c)
append a Set-Cookie header value (without "Set-Cookie: ")
const char * n_http_cookie_get(const char * header, size_t len, const char * name, size_t * value_len)
find a cookie in a Cookie header value
size_t n_http_cookie_count(const char * header, size_t len, const char * name)
count the pairs named name in a Cookie header value

Defines

Name
N_HTTP_COOKIE_SESSION
Max-Age value meaning "session cookie": neither Max-Age nor Expires is sent.

Types Documentation

enum N_HTTP_SAMESITE

Enumerator Value Description
N_HTTP_SAMESITE_UNSET 0 no SameSite attribute (browser default)
N_HTTP_SAMESITE_STRICT 2 SameSite=Strict.
N_HTTP_SAMESITE_NONE 3 SameSite=None, needs Secure.
N_HTTP_SAMESITE_LAX 1 SameSite=Lax.

SameSite attribute of a Set-Cookie.

Functions Documentation

function n_http_set_cookie_build

int n_http_set_cookie_build(
    N_STR ** out,
    const N_HTTP_SET_COOKIE * c
)

append a Set-Cookie header value (without "Set-Cookie: ")

Parameters:

  • out destination, appended to (created when *out is NULL)
  • c what the cookie carries
  • out destination, appended to (created when *out is NULL)
  • c what the cookie carries

Return:

  • TRUE on success, FALSE on a refused cookie or allocation failure
  • TRUE on success, FALSE on a refused cookie or allocation failure

append a Set-Cookie header value, refusing anything that could break out of an attribute or that a browser would reject for its prefix

Attributes come in this order: Max-Age (and Expires when deleting), Path, Domain, Secure, HttpOnly, SameSite. Refused (FALSE, nothing appended): a name that is not a token, a value outside cookie-octets, an empty path or one with a control byte or ';', a domain outside [A-Za-z0-9.-], a negative max_age other than N_HTTP_COOKIE_SESSION, a "__Host-" cookie that is not Secure with Path=/ and no Domain, a "__Secure-" cookie that is not Secure, SameSite=None without Secure. append a Set-Cookie header value (without "Set-Cookie: ")

function n_http_cookie_get

const char * n_http_cookie_get(
    const char * header,
    size_t len,
    const char * name,
    size_t * value_len
)

find a cookie in a Cookie header value

Parameters:

  • header the Cookie header value (may be NULL only when len is 0)
  • len its length
  • name the cookie name, case-sensitive
  • value_len receives the value length (may be NULL)
  • header the Cookie header value (may be NULL only when len is 0)
  • len its length
  • name the cookie name, case-sensitive
  • value_len receives the value length (may be NULL)

Return:

  • a pointer to the value inside header, or NULL when absent
  • a pointer to the value inside header, or NULL when absent

find a cookie in a Cookie header value (first occurrence wins)

Pairs are separated by ';' (spaces around them ignored). The FIRST pair with that exact name wins, as in PHP's $_COOKIE and as browsers order the most specific cookie first. Pairs whose name is not a token are skipped. The value is returned raw (quotes and percent escapes kept), not NUL-terminated. find a cookie in a Cookie header value

function n_http_cookie_count

size_t n_http_cookie_count(
    const char * header,
    size_t len,
    const char * name
)

count the pairs named name in a Cookie header value

Parameters:

  • header the Cookie header value
  • len its length
  • name the cookie name, case-sensitive
  • header the Cookie header value
  • len its length
  • name the cookie name, case-sensitive

Return:

  • the count, 0 on a NULL argument
  • the count, 0 on a NULL argument

count the pairs named name in a Cookie header value

count the pairs named name in a Cookie header value

Macros Documentation

define N_HTTP_COOKIE_SESSION

#define N_HTTP_COOKIE_SESSION (-1LL)

Max-Age value meaning "session cookie": neither Max-Age nor Expires is sent.

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