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/* This software was written by Dirk Engling <erdgeist@erdgeist.org>
It is considered beerware. Prost. Skol. Cheers or whatever.
$id$ */
#ifndef SCAN_URLENCODED_QUERY_H__
#define SCAN_URLENCODED_QUERY_H__
#include <stddef.h>
#include <stdint.h>
#include <sys/types.h>
typedef struct {
char *key;
int value;
} ot_keywords;
typedef enum {
SCAN_PATH = 1,
SCAN_SEARCHPATH_PARAM = 2,
SCAN_SEARCHPATH_VALUE = 4,
SCAN_SEARCHPATH_TERMINATOR = 8
} SCAN_SEARCHPATH_FLAG;
/* string in: pointer to source
out: pointer to next scan position
deststring pointer to destination
flags determines, what to parse
returns number of valid converted characters in deststring
or -1 for parse error
or -2 for terminator found
*/
ssize_t scan_urlencoded_query(char **string, char *deststring, SCAN_SEARCHPATH_FLAG flags);
/* string in: pointer to source
out: pointer to next scan position
flags determines, what to parse
returns value for matched keyword
or -1 for parse error
or -2 for terminator found
or -3 for no keyword matched
*/
int scan_find_keywords(const ot_keywords *keywords, char **string, SCAN_SEARCHPATH_FLAG flags);
/* string in: pointer to value of a param=value pair to skip
out: pointer to next scan position on return
*/
void scan_urlencoded_skipvalue(char **string);
/* data pointer to len chars of string
len length of chars in data to parse
number number to receive result
returns number of bytes not parsed, mostly !=0 means fail
*/
ssize_t scan_fixed_int(char *data, size_t len, int *number);
/* The other direction: percent encode len bytes from src into dest and return
how many characters were written, or how many would be needed when dest is
NULL. dest needs room for three times len.
*/
size_t fmt_urlencoded(char *dest, const uint8_t *src, size_t len);
#endif
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