1#ifndef GIT_COMPAT_UTIL_H
2#define GIT_COMPAT_UTIL_H
3
4#define _FILE_OFFSET_BITS 64
5
6#ifndef FLEX_ARRAY
7
8
9
10#if defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L)
11# define FLEX_ARRAY
12#elif defined(__GNUC__)
13# if (__GNUC__ >= 3)
14# define FLEX_ARRAY
15# else
16# define FLEX_ARRAY 0
17# endif
18#endif
19
20
21
22
23#ifndef FLEX_ARRAY
24# define FLEX_ARRAY 1
25#endif
26#endif
27
28#define ARRAY_SIZE(x) (sizeof(x)/sizeof(x[0]))
29
30#ifdef __GNUC__
31#define TYPEOF(x) (__typeof__(x))
32#else
33#define TYPEOF(x)
34#endif
35
36#define MSB(x, bits) ((x) & TYPEOF(x)(~0ULL << (sizeof(x) * 8 - (bits))))
37#define HAS_MULTI_BITS(i) ((i) & ((i) - 1))
38
39
40#define decimal_length(x) ((int)(sizeof(x) * 2.56 + 0.5) + 1)
41
42#define _ALL_SOURCE 1
43#define _BSD_SOURCE 1
44#define HAS_BOOL
45
46#include <unistd.h>
47#include <stdio.h>
48#include <sys/stat.h>
49#include <sys/statfs.h>
50#include <fcntl.h>
51#include <stdbool.h>
52#include <stddef.h>
53#include <stdlib.h>
54#include <stdarg.h>
55#include <string.h>
56#include <errno.h>
57#include <limits.h>
58#include <sys/param.h>
59#include <sys/types.h>
60#include <dirent.h>
61#include <sys/time.h>
62#include <time.h>
63#include <signal.h>
64#include <fnmatch.h>
65#include <assert.h>
66#include <regex.h>
67#include <utime.h>
68#include <sys/wait.h>
69#include <sys/poll.h>
70#include <sys/socket.h>
71#include <sys/ioctl.h>
72#include <sys/select.h>
73#include <netinet/in.h>
74#include <netinet/tcp.h>
75#include <arpa/inet.h>
76#include <netdb.h>
77#include <pwd.h>
78#include <inttypes.h>
79#include "../../../include/linux/magic.h"
80#include "types.h"
81#include <sys/ttydefaults.h>
82
83extern const char *graph_line;
84extern const char *graph_dotted_line;
85extern char buildid_dir[];
86
87
88
89
90#ifndef PATH_MAX
91#define PATH_MAX 4096
92#endif
93
94#ifndef PRIuMAX
95#define PRIuMAX "llu"
96#endif
97
98#ifndef PRIu32
99#define PRIu32 "u"
100#endif
101
102#ifndef PRIx32
103#define PRIx32 "x"
104#endif
105
106#ifndef PATH_SEP
107#define PATH_SEP ':'
108#endif
109
110#ifndef STRIP_EXTENSION
111#define STRIP_EXTENSION ""
112#endif
113
114#ifndef has_dos_drive_prefix
115#define has_dos_drive_prefix(path) 0
116#endif
117
118#ifndef is_dir_sep
119#define is_dir_sep(c) ((c) == '/')
120#endif
121
122#ifdef __GNUC__
123#define NORETURN __attribute__((__noreturn__))
124#else
125#define NORETURN
126#ifndef __attribute__
127#define __attribute__(x)
128#endif
129#endif
130
131
132extern void usage(const char *err) NORETURN;
133extern void die(const char *err, ...) NORETURN __attribute__((format (printf, 1, 2)));
134extern int error(const char *err, ...) __attribute__((format (printf, 1, 2)));
135extern void warning(const char *err, ...) __attribute__((format (printf, 1, 2)));
136
137#include "../../../include/linux/stringify.h"
138
139#define DIE_IF(cnd) \
140 do { if (cnd) \
141 die(" at (" __FILE__ ":" __stringify(__LINE__) "): " \
142 __stringify(cnd) "\n"); \
143 } while (0)
144
145
146extern void set_die_routine(void (*routine)(const char *err, va_list params) NORETURN);
147
148extern int prefixcmp(const char *str, const char *prefix);
149extern void set_buildid_dir(void);
150extern void disable_buildid_cache(void);
151
152static inline const char *skip_prefix(const char *str, const char *prefix)
153{
154 size_t len = strlen(prefix);
155 return strncmp(str, prefix, len) ? NULL : str + len;
156}
157
158#ifdef __GLIBC_PREREQ
159#if __GLIBC_PREREQ(2, 1)
160#define HAVE_STRCHRNUL
161#endif
162#endif
163
164#ifndef HAVE_STRCHRNUL
165#define strchrnul gitstrchrnul
166static inline char *gitstrchrnul(const char *s, int c)
167{
168 while (*s && *s != c)
169 s++;
170 return (char *)s;
171}
172#endif
173
174
175
176
177extern char *xstrdup(const char *str);
178extern void *xrealloc(void *ptr, size_t size) __attribute__((weak));
179
180
181static inline void *zalloc(size_t size)
182{
183 return calloc(1, size);
184}
185
186static inline int has_extension(const char *filename, const char *ext)
187{
188 size_t len = strlen(filename);
189 size_t extlen = strlen(ext);
190
191 return len > extlen && !memcmp(filename + len - extlen, ext, extlen);
192}
193
194
195#undef isascii
196#undef isspace
197#undef isdigit
198#undef isxdigit
199#undef isalpha
200#undef isprint
201#undef isalnum
202#undef tolower
203#undef toupper
204
205extern unsigned char sane_ctype[256];
206#define GIT_SPACE 0x01
207#define GIT_DIGIT 0x02
208#define GIT_ALPHA 0x04
209#define GIT_GLOB_SPECIAL 0x08
210#define GIT_REGEX_SPECIAL 0x10
211#define GIT_PRINT_EXTRA 0x20
212#define GIT_PRINT 0x3E
213#define sane_istest(x,mask) ((sane_ctype[(unsigned char)(x)] & (mask)) != 0)
214#define isascii(x) (((x) & ~0x7f) == 0)
215#define isspace(x) sane_istest(x,GIT_SPACE)
216#define isdigit(x) sane_istest(x,GIT_DIGIT)
217#define isxdigit(x) \
218 (sane_istest(toupper(x), GIT_ALPHA | GIT_DIGIT) && toupper(x) < 'G')
219#define isalpha(x) sane_istest(x,GIT_ALPHA)
220#define isalnum(x) sane_istest(x,GIT_ALPHA | GIT_DIGIT)
221#define isprint(x) sane_istest(x,GIT_PRINT)
222#define tolower(x) sane_case((unsigned char)(x), 0x20)
223#define toupper(x) sane_case((unsigned char)(x), 0)
224
225static inline int sane_case(int x, int high)
226{
227 if (sane_istest(x, GIT_ALPHA))
228 x = (x & ~0x20) | high;
229 return x;
230}
231
232int mkdir_p(char *path, mode_t mode);
233int copyfile(const char *from, const char *to);
234
235s64 perf_atoll(const char *str);
236char **argv_split(const char *str, int *argcp);
237void argv_free(char **argv);
238bool strglobmatch(const char *str, const char *pat);
239bool strlazymatch(const char *str, const char *pat);
240int strtailcmp(const char *s1, const char *s2);
241unsigned long convert_unit(unsigned long value, char *unit);
242int readn(int fd, void *buf, size_t size);
243
244struct perf_event_attr;
245
246void event_attr_init(struct perf_event_attr *attr);
247
248#define _STR(x) #x
249#define STR(x) _STR(x)
250
251
252
253
254
255
256static inline __attribute__((const))
257bool is_power_of_2(unsigned long n)
258{
259 return (n != 0 && ((n & (n - 1)) == 0));
260}
261
262#endif
263