The Set-Cookie header is used to transmit state information from server back to the http client.
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Detailed Description
The Set-Cookie header is used to transmit state information from server back to the http client.
Its syntax is defined in RFC 2109 section 4.2.2 as follows:
set-cookie = "Set-Cookie:" cookies
cookies = 1#cookie
cookie = NAME "=" VALUE *(";" cookie-av)
NAME = attr
VALUE = value
cookie-av = "Comment" "=" value
| "Domain" "=" value
| "Max-Age" "=" value
| "Path" "=" value
| "Secure"
| "Version" "=" 1*DIGIT
Macro Definition Documentation
#define HTTP_SET_COOKIE_INIT |
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Initializer for structure http_set_cookie_t.
A static http_set_cookie_t structure must be initialized with the HTTP_SET_COOKIE_INIT() macro. For instance,
#define HTTPTAG_SET_COOKIE |
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Tag list item for pointer to a Set-Cookie header object.
The HTTPTAG_SET_COOKIE() macro is used to include a tag item with a pointer to a http_set_cookie_t object in a tag list.
- Parameters
-
x | pointer to a http_set_cookie_t header structure, or NULL. |
#define HTTPTAG_SET_COOKIE_STR |
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Tag list item for string with Set-Cookie header value.
The HTTPTAG_SET_COOKIE_STR() macro is used to include a tag item with a string containing value of a http_set_cookie_t header in a tag list.
- Parameters
-
s | pointer to a string containing http_set_cookie_t value, or NULL. |
The HTTPTAG_SET_COOKIE_STR string can be converted to a http_set_cookie_t header structure by giving the string s has second argument to function http_set_cookie_make().
Typedef Documentation
The structure http_set_cookie_t contains representation of Set-Cookie header.
The http_set_cookie_t is defined as follows:
Enumeration Type Documentation
- Enumerator:
http_set_cookie_hash |
Hash of Set-Cookie header.
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Function Documentation
Test if header object is instance of http_set_cookie_t.
The function http_is_set_cookie() returns true (nonzero) if the header class is an instance of Set-Cookie header object and false (zero) otherwise.
- Parameters
-
header | pointer to the header structure to be tested |
- Returns
- The function http_is_xset_cookie() returns true (nonzero) if the header object is an instance of header set_cookie and false (zero) otherwise.
Copy a http_set_cookie_t header structure.
The function http_set_cookie_copy() copies a header structure hdr. If the header structure hdr contains a reference (hdr->h_next
) to a list of headers, all the headers in that list are copied, too. The function uses given memory home to allocate all the memory areas used to copy the header structure hdr.
- Parameters
-
home | memory home used to allocate new structure |
hdr | pointer to the header structure to be duplicated |
When copying, only the header structure and parameter lists attached to it are duplicated. The new header structure retains all the references to the strings within the old header, including the encoding of the old header, if present.
- Example
- Returns
- The function http_set_cookie_copy() returns a pointer to newly copied header structure, or NULL upon an error.
Duplicate (deep copy) http_set_cookie_t
.
The function http_set_cookie_dup() duplicates a header structure hdr. If the header structure hdr contains a reference (hdr->x_next
) to a list of headers, all the headers in the list are duplicated, too.
- Parameters
-
home | memory home used to allocate new structure |
hdr | header structure to be duplicated |
When duplicating, all parameter lists and non-constant strings attached to the header are copied, too. The function uses given memory home to allocate all the memory areas used to copy the header.
- Example
- Returns
- The function http_set_cookie_dup() returns a pointer to the newly duplicated http_set_cookie_t header structure, or NULL upon an error.
Make a Set-Cookie header from formatting result.
The function http_set_cookie_format() makes a new Set-Cookie header object using formatting result as its value. The function first prints the arguments according to the format fmt specified. Then it allocates a new header structure, and uses the formatting result as the header value.
- Parameters
-
home | memory home used to allocate new header structure. |
fmt | string used as a printf()-style format |
... | argument list for format |
- Note
- This function is usually implemented as a macro calling msg_header_format().
- Returns
- The function http_set_cookie_format() returns a pointer to newly makes header structure, or NULL upon an error.
Initialize a structure http_set_cookie_t.
An http_set_cookie_t structure can be initialized with the http_set_cookie_init() function/macro. For instance,
Make a header structure http_set_cookie_t.
The function http_set_cookie_make() makes a new http_set_cookie_t header structure. It allocates a new header structure, and decodes the string s as the value of the structure.
- Parameters
-
home | memory home used to allocate new header structure. |
s | string to be decoded as value of the new header structure |
- Note
- This function is usually implemented as a macro calling http_header_make().
- Returns
- The function http_set_cookie_make() returns a pointer to newly maked http_set_cookie_t header structure, or NULL upon an error.
Variable Documentation
Header class for HTTP Set-Cookie header.
The header class http_set_cookie_class defines how a HTTP Set-Cookie header is parsed and printed. It also contains methods used by HTTP parser and other functions to manipulate the http_set_cookie_t header structure.