mirror of
https://github.com/bol-van/zapret.git
synced 2024-11-30 05:50:53 +03:00
109 lines
3.3 KiB
C
109 lines
3.3 KiB
C
#pragma once
|
|
|
|
#include <arpa/inet.h>
|
|
#include <netinet/in.h>
|
|
#include <sys/socket.h>
|
|
#include <stddef.h>
|
|
#include <stdbool.h>
|
|
#include <stdint.h>
|
|
#include <stdio.h>
|
|
#include <time.h>
|
|
|
|
// this saves memory. sockaddr_storage is larger than required. it can be 128 bytes. sockaddr_in6 is 28 bytes.
|
|
typedef union
|
|
{
|
|
struct sockaddr_in sa4; // size 16
|
|
struct sockaddr_in6 sa6; // size 28
|
|
char _align[32]; // force 16-byte alignment for ip6_and int128 ops
|
|
} sockaddr_in46;
|
|
|
|
int unique_size_t(size_t *pu, int ct);
|
|
void qsort_size_t(size_t *array,size_t ct);
|
|
|
|
void rtrim(char *s);
|
|
void replace_char(char *s, char from, char to);
|
|
char *strncasestr(const char *s,const char *find, size_t slen);
|
|
|
|
bool load_file(const char *filename,void *buffer,size_t *buffer_size);
|
|
bool load_file_nonempty(const char *filename,void *buffer,size_t *buffer_size);
|
|
bool save_file(const char *filename, const void *buffer, size_t buffer_size);
|
|
bool append_to_list_file(const char *filename, const char *s);
|
|
|
|
void print_sockaddr(const struct sockaddr *sa);
|
|
void ntop46(const struct sockaddr *sa, char *str, size_t len);
|
|
void ntop46_port(const struct sockaddr *sa, char *str, size_t len);
|
|
bool pton4_port(const char *s, struct sockaddr_in *sa);
|
|
bool pton6_port(const char *s, struct sockaddr_in6 *sa);
|
|
|
|
uint16_t saport(const struct sockaddr *sa);
|
|
|
|
bool seq_within(uint32_t s, uint32_t s1, uint32_t s2);
|
|
|
|
uint64_t pntoh64(const void *p);
|
|
void phton64(uint8_t *p, uint64_t v);
|
|
|
|
bool ipv6_addr_is_zero(const struct in6_addr *a);
|
|
|
|
static inline uint16_t pntoh16(const uint8_t *p) {
|
|
return ((uint16_t)p[0] << 8) | (uint16_t)p[1];
|
|
}
|
|
static inline void phton16(uint8_t *p, uint16_t v) {
|
|
p[0] = (uint8_t)(v >> 8);
|
|
p[1] = v & 0xFF;
|
|
}
|
|
static inline uint32_t pntoh32(const uint8_t *p) {
|
|
return ((uint32_t)p[0] << 24) | ((uint32_t)p[1] << 16) | ((uint32_t)p[2] << 8) | (uint32_t)p[3];
|
|
}
|
|
|
|
bool parse_hex_str(const char *s, uint8_t *pbuf, size_t *size);
|
|
void fill_pattern(uint8_t *buf,size_t bufsize,const void *pattern,size_t patsize);
|
|
|
|
int fprint_localtime(FILE *F);
|
|
|
|
time_t file_mod_time(const char *filename);
|
|
|
|
typedef struct
|
|
{
|
|
uint16_t from,to;
|
|
bool neg;
|
|
} port_filter;
|
|
bool pf_in_range(uint16_t port, const port_filter *pf);
|
|
bool pf_parse(const char *s, port_filter *pf);
|
|
bool pf_is_empty(const port_filter *pf);
|
|
|
|
void fill_random_bytes(uint8_t *p,size_t sz);
|
|
void fill_random_az(uint8_t *p,size_t sz);
|
|
void fill_random_az09(uint8_t *p,size_t sz);
|
|
|
|
bool set_env_exedir(const char *argv0);
|
|
|
|
|
|
struct cidr4
|
|
{
|
|
struct in_addr addr;
|
|
uint8_t preflen;
|
|
};
|
|
struct cidr6
|
|
{
|
|
struct in6_addr addr;
|
|
uint8_t preflen;
|
|
};
|
|
void str_cidr4(char *s, size_t s_len, const struct cidr4 *cidr);
|
|
void print_cidr4(const struct cidr4 *cidr);
|
|
void str_cidr6(char *s, size_t s_len, const struct cidr6 *cidr);
|
|
void print_cidr6(const struct cidr6 *cidr);
|
|
bool parse_cidr4(char *s, struct cidr4 *cidr);
|
|
bool parse_cidr6(char *s, struct cidr6 *cidr);
|
|
|
|
static inline uint32_t mask_from_preflen(uint32_t preflen)
|
|
{
|
|
return preflen ? preflen<32 ? ~((1 << (32-preflen)) - 1) : 0xFFFFFFFF : 0;
|
|
}
|
|
void ip6_and(const struct in6_addr * restrict a, const struct in6_addr * restrict b, struct in6_addr * restrict result);
|
|
extern struct in6_addr ip6_mask[129];
|
|
void mask_from_preflen6_prepare(void);
|
|
static inline const struct in6_addr *mask_from_preflen6(uint8_t preflen)
|
|
{
|
|
return ip6_mask+preflen;
|
|
}
|