title: "mg_http_parse_header()"
decl_name: "mg_http_parse_header"
symbol_kind: "func"
signature: |
int mg_http_parse_header(struct mg_str *hdr, const char *var_name, char *buf,
size_t buf_size);
Parses the HTTP header hdr
. Finds variable var_name
and stores its value
in the buffer buf
, buf_size
. Returns 0 if variable not found, non-zero
otherwise.
This function is supposed to parse cookies, authentication headers, etc. Example (error handling omitted):
char user[20];
struct mg_str *hdr = mg_get_http_header(hm, "Authorization");
mg_http_parse_header(hdr, "username", user, sizeof(user));
Returns the length of the variable's value. If buffer is not large enough, or variable not found, 0 is returned.