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#ifndef SPF_H
#define SPF_H
#include "stralloc.h"
#include "ipalloc.h"
/* (Internal) Processing codes */
#define SPF_INIT -1
#define SPF_EXT -2 /* x */
#define SPF_ME -3
#define SPF_EXHAUST -4
#define SPF_LOOP -5
#define SPF_MULTIRR -6
#define SPF_LOCAL -7
#define SPF_ERROR -8
#define SPF_NOMEM -9
#define SPF_SYNTAX -10 /* Setup problem */
/* (External) Resulting codes */
#define SPF_OK 0 /* + Pass */
#define SPF_NONE 1 /* o None */
#define SPF_UNKNOWN 2 /* u Unknown method */
#define SPF_NEUTRAL 3 /* ? Neutral */
#define SPF_SOFTFAIL 4 /* ~ Softfail */
#define SPF_FAIL 5 /* - Not Permitted */
#define SPF_DNSSOFT 6 /* d From DNS; not used */
#define LOOKUP_LIMIT 10
/* spfinfo: S=remoteip|O=mailfrom|C=identity/domain|H=helo|M(echanism)=query|D=redirect|I=domain|P=problem|R:result */
#define SPF_DEFEXP "See http://%{d}/why.html?sender=%{s}&ip=%{i}&receiver=%{r}"
extern int flagip6;
extern stralloc spfmf;
extern stralloc spfhelo;
extern stralloc spfinfo;
extern stralloc spfdomain;
extern stralloc dnsname;
extern stralloc spflocalrules;
extern stralloc spfrecord;
extern stralloc expdomain;
extern stralloc spfexplain;
extern stralloc spfexpmsg;
/* this table and macro came from wget more or less */
/* and was in turn stolen by me++ from libspf as is :) */
const static unsigned char urlchr_table[256] = {
1, 1, 1, 1, 1, 1, 1, 1, /* NUL SOH STX ETX EOT ENQ ACK BEL */
1, 1, 1, 1, 1, 1, 1, 1, /* BS HT LF VT FF CR SO SI */
1, 1, 1, 1, 1, 1, 1, 1, /* DLE DC1 DC2 DC3 DC4 NAK SYN ETB */
1, 1, 1, 1, 1, 1, 1, 1, /* CAN EM SUB ESC FS GS RS US */
1, 0, 1, 1, 0, 1, 1, 0, /* SP ! " # $ % & ' */
0, 0, 0, 1, 0, 0, 0, 1, /* ( ) * + , - . / */
0, 0, 0, 0, 0, 0, 0, 0, /* 0 1 2 3 4 5 6 7 */
0, 0, 1, 1, 1, 1, 1, 1, /* 8 9 : ; < = > ? */
1, 0, 0, 0, 0, 0, 0, 0, /* @ A B C D E F G */
0, 0, 0, 0, 0, 0, 0, 0, /* H I J K L M N O */
0, 0, 0, 0, 0, 0, 0, 0, /* P Q R S T U V W */
0, 0, 0, 1, 1, 1, 1, 0, /* X Y Z [ \ ] ^ _ */
1, 0, 0, 0, 0, 0, 0, 0, /* ` a b c d e f g */
0, 0, 0, 0, 0, 0, 0, 0, /* h i j k l m n o */
0, 0, 0, 0, 0, 0, 0, 0, /* p q r s t u v w */
0, 0, 0, 1, 1, 1, 1, 1, /* x y z { | } ~ DEL */
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
};
#define WSPACE(x) ((x) == ' ' || (x) == '\t' || (x) == '\r' || (x) == '\n')
#define NXTOK(b, p, a) \
do { \
(b) = (p); \
while ((p) < (a)->len && !WSPACE((a)->s[(p)])) ++(p); \
while ((p) < (a)->len && WSPACE((a)->s[(p)])) (a)->s[(p)++] = 0; \
} while (0)
/* spfdnsip.c */
int match_ip4(unsigned char[4], int, char[4]);
int match_ip6(unsigned char[16], int, char[16]);
int get_prefix(char *);
int spf_records(stralloc *, stralloc *);
int spf_include(char *, char *);
int spf_a(char *, char *);
int spf_mx(char *, char *);
int spf_ptr(char *, char *);
int spf_ip4(char *, char *);
int spf_ip6(char *, char *);
int spf_exists(char *, char *);
/* spf.c */
int spf_query(const char *, const char *, const char *, const char *, const int);
int spf_lookup(stralloc *);
int spf_mechanism(char *, char *, char *, char *);
int spf_parse(stralloc *, char *, char *);
int spf_macros(stralloc *, char *, char *);
int spf_info(char *, const char *);
#endif
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