1/* see LICENSE file for copyright and license details */
2#ifndef UTIL_H
3#define UTIL_H
4
5#include <sys/types.h>
6
7#include <regex.h>
8#include <stdarg.h>
9#include <stddef.h>
10#include <stdio.h>
11#include <string.h>
12
13#include "arg.h"
14#include "compat.h"
15
16#define UTF8_POINT(c) (((c) & 0xc0) != 0x80)
17
18#undef MIN
19#define MIN(x, y) ((x) < (y) ? (x) : (y))
20#undef MAX
21#define MAX(x, y) ((x) > (y) ? (x) : (y))
22#undef LIMIT
23#define LIMIT(x, a, b) (x) = (x)<(a) ? (a) : (x)>(b) ? (b) : (x)
24
25#define LEN(x) (sizeof(x) / sizeof *(x))
26
27extern char *argv0;
28
29void *ecalloc(size_t, size_t);
30void *emalloc(size_t);
31void *erealloc(void *, size_t);
32#undef reallocarray
33void *reallocarray(void *, size_t, size_t);
34void *ereallocarray(void *, size_t, size_t);
35char *estrdup(const char *);
36char *estrndup(const char *, size_t);
37void *encalloc(int, size_t, size_t);
38void *enmalloc(int, size_t);
39void *enrealloc(int, void *, size_t);
40void *enreallocarray(int, void *, size_t, size_t);
41char *enstrdup(int, const char *);
42char *enstrndup(int, const char *, size_t);
43
44void enfshut(int, FILE *, const char *);
45void efshut(FILE *, const char *);
46int fshut(FILE *, const char *);
47
48void enprintf(int, const char *, ...);
49void eprintf(const char *, ...);
50void weprintf(const char *, ...);
51void xvprintf(const char *, va_list);
52
53int confirm(const char *, ...);
54
55double estrtod(const char *);
56
57#undef strcasestr
58#define strcasestr xstrcasestr
59char *strcasestr(const char *, const char *);
60
61#undef strlcat
62#define strlcat xstrlcat
63size_t strlcat(char *, const char *, size_t);
64size_t estrlcat(char *, const char *, size_t);
65#undef strlcpy
66#define strlcpy xstrlcpy
67size_t strlcpy(char *, const char *, size_t);
68size_t estrlcpy(char *, const char *, size_t);
69
70#undef strsep
71#define strsep xstrsep
72char *strsep(char **, const char *);
73
74void strnsubst(char **, const char *, const char *, size_t);
75
76/* regex */
77int enregcomp(int, regex_t *, const char *, int);
78int eregcomp(regex_t *, const char *, int);
79
80/* io */
81ssize_t writeall(int, const void *, size_t);
82int concat(int, const char *, int, const char *);
83
84/* misc */
85void enmasse(int, char **, int (*)(const char *, const char *, int));
86void fnck(const char *, const char *, int (*)(const char *, const char *, int), int);
87mode_t getumask(void);
88int hexval(int);
89char *humansize(off_t);
90mode_t parsemode(const char *, mode_t, mode_t);
91off_t parseoffset(const char *);
92void putword(FILE *, const char *);
93#undef strtonum
94#define strtonum xstrtonum
95long long strtonum(const char *, long long, long long, const char **);
96long long enstrtonum(int, const char *, long long, long long);
97long long estrtonum(const char *, long long, long long);
98size_t unescape(char *);
99int mkdirp(const char *, mode_t, mode_t);
100#undef memmem
101#define memmem xmemmem
102void *memmem(const void *, size_t, const void *, size_t);
103
104/* ubase functions */
105char *agetcwd(void);
106void apathmax(char **, long *);
107long estrtol(const char *, int);
108unsigned long estrtoul(const char *, int);
109#undef explicit_bzero
110void explicit_bzero(void *, size_t);
111void recurse_dir(const char *, void (*)(const char *));
112void devtotty(int, int *, int *);
113int ttytostr(int, int, char *, size_t);
114
115#include <netinet/in.h>
116#include <sys/socket.h>
117
118#ifndef IFNAMSIZ
119#define IFNAMSIZ 16
120#endif
121
122struct NetStats {
123 unsigned long long rx_bytes;
124 unsigned long long rx_packets;
125 unsigned long long rx_errs;
126 unsigned long long rx_drop;
127 unsigned long long tx_bytes;
128 unsigned long long tx_packets;
129 unsigned long long tx_errs;
130 unsigned long long tx_drop;
131};
132
133struct NetInterface {
134 char name[IFNAMSIZ];
135 unsigned int flags;
136 int mtu;
137 int metric;
138 unsigned char mac[6];
139 int has_mac;
140
141 /* ipv4 addresses */
142 struct sockaddr_in ipv4_addr;
143 int has_ipv4;
144 struct sockaddr_in ipv4_mask;
145 struct sockaddr_in ipv4_brd;
146
147 /* ipv6 addresses */
148 struct sockaddr_in6 ipv6_addr;
149 int has_ipv6;
150 unsigned int ipv6_scope;
151 unsigned int ipv6_prefix;
152};
153
154struct MemInfo {
155 unsigned long long total;
156 unsigned long long free;
157 unsigned long long shared;
158 unsigned long long buffers;
159 unsigned long long cached;
160 unsigned long long totalswap;
161 unsigned long long freeswap;
162};
163
164int net_get_interfaces(struct NetInterface **, int *);
165int net_get_stats(const char *, struct NetStats *);
166int net_set_flags(const char *, unsigned int, int);
167int net_set_mtu(const char *, int);
168int net_set_mac(const char *, const unsigned char *);
169int net_add_addr(const char *, const char *, int);
170int net_del_addr(const char *, const char *, int);
171int net_show_routes(void);
172int net_add_route(const char *, const char *, const char *, const char *, int);
173int net_del_route(const char *, const char *, const char *, const char *, int);
174int net_flush_addrs(const char *);
175int net_set_txqueuelen(const char *, int);
176int net_set_name(const char *, const char *);
177
178#if FEATURE_NOEXEC || FEATURE_NOFORK
179#include "wexec.h"
180#define exit(code) wexec_exit(code)
181#define _exit(code) wexec_exit(code)
182#endif
183
184#endif
