Description
The libvxcgi library provides functions commonly used in CGI environments.
Function overview
#include <vitalnix/libvxcgi/libvxcgi.h>
int vxcgi_authenticate(const char *user, const char *password);
char *vxcgi_read_data(int argc, const char **argv);
struct HXbtree *vxcgi_split(char *str);
vxcgi_authenticate
Authenticate the user using the given password. Returns an AEE
code, carrying the PAM error code as a negative return value. (E.g.
-7 for PAM_AUTH_ERR and -10 for
PAM_USER_UNKNOWN.)
vxcgi_read_data
Returns the CGI POST data, or in case of a GET query, the
query string. If called from the command-line, that is, if
getenv("REQUEST_METHOD") == NULL, a copy of
argv[1] is returned, which is assumed to be in
application/x-www-form-urlencoded encoding. Note that the returned
string is allocated and therefore must be freed at a later time.
If you do not intend to pass any argc/argv, call
vxcgi_read_data with (0, NULL).
vxcgi_split
Splits the string according to
application/x-www-form-urlencoded rules and returns the key-value pairs
in a struct HXbtree. The string must be writable, as it will be
modified and freed. The caller should preferably duplicate it beforehand.
Example
Here is how to quickly get a HXbtree out of the query string:
struct HXbtree *data =
vxcgi_split(vxcgi_read_data(argc, argv));
and to get the "user" parameter if the query string:
char *u = HXbtree_get(data, "user");