1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
|
/*
* Copyright (c) Artem Bityutskiy, 2007, 2008
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
* the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef __MTD_UTILS_COMMON_H__
#define __MTD_UTILS_COMMON_H__
#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>
#include <string.h>
#include <fcntl.h>
#include <errno.h>
#include "version.h"
#ifndef PROGRAM_NAME
# error "You must define PROGRAM_NAME before including this header"
#endif
#ifdef __cplusplus
extern "C" {
#endif
#ifndef MIN /* some C lib headers define this for us */
#define MIN(a, b) ((a) < (b) ? (a) : (b))
#endif
#ifndef MAX
#define MAX(a, b) ((a) > (b) ? (a) : (b))
#endif
#define min(a, b) MIN(a, b) /* glue for linux kernel source */
#define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0]))
#ifndef O_CLOEXEC
#define O_CLOEXEC 0
#endif
/* Verbose messages */
#define bareverbose(verbose, fmt, ...) do { \
if (verbose) \
printf(fmt, ##__VA_ARGS__); \
} while(0)
#define verbose(verbose, fmt, ...) \
bareverbose(verbose, "%s: " fmt "\n", PROGRAM_NAME, ##__VA_ARGS__)
/* Normal messages */
#define normsg_cont(fmt, ...) do { \
printf("%s: " fmt, PROGRAM_NAME, ##__VA_ARGS__); \
} while(0)
#define normsg(fmt, ...) do { \
normsg_cont(fmt "\n", ##__VA_ARGS__); \
} while(0)
/* Error messages */
#define errmsg(fmt, ...) ({ \
fprintf(stderr, "%s: error!: " fmt "\n", PROGRAM_NAME, ##__VA_ARGS__); \
-1; \
})
#define errmsg_die(fmt, ...) do { \
exit(errmsg(fmt, ##__VA_ARGS__)); \
} while(0)
/* System error messages */
#define sys_errmsg(fmt, ...) ({ \
int _err = errno; \
errmsg(fmt, ##__VA_ARGS__); \
fprintf(stderr, "%*serror %d (%s)\n", (int)sizeof(PROGRAM_NAME) + 1,\
"", _err, strerror(_err)); \
-1; \
})
#define sys_errmsg_die(fmt, ...) do { \
exit(sys_errmsg(fmt, ##__VA_ARGS__)); \
} while(0)
/* Warnings */
#define warnmsg(fmt, ...) do { \
fprintf(stderr, "%s: warning!: " fmt "\n", PROGRAM_NAME, ##__VA_ARGS__); \
} while(0)
static inline int is_power_of_2(unsigned long long n)
{
return (n != 0 && ((n & (n - 1)) == 0));
}
/**
* simple_strtoX - convert a hex/dec/oct string into a number
* @snum: buffer to convert
* @error: set to 1 when buffer isn't fully consumed
*
* These functions are similar to the standard strtoX() functions, but they are
* a little bit easier to use if you want to convert full string of digits into
* the binary form. The typical usage:
*
* int error = 0;
* unsigned long num;
*
* num = simple_strtoul(str, &error);
* if (error || ... if needed, your check that num is not out of range ...)
* error_happened();
*/
#define simple_strtoX(func, type) \
static inline type simple_##func(const char *snum, int *error) \
{ \
char *endptr; \
type ret = func(snum, &endptr, 0); \
\
if (error && (!*snum || *endptr)) { \
errmsg("%s: unable to parse the number '%s'", #func, snum); \
*error = 1; \
} \
\
return ret; \
}
simple_strtoX(strtol, long int)
simple_strtoX(strtoll, long long int)
simple_strtoX(strtoul, unsigned long int)
simple_strtoX(strtoull, unsigned long long int)
/* Simple version-printing for utils */
#define common_print_version() \
do { \
printf("%s %s\n", PROGRAM_NAME, VERSION); \
} while (0)
#include "xalloc.h"
#ifdef __cplusplus
}
#endif
#endif /* !__MTD_UTILS_COMMON_H__ */
|
