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
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
|
////////////////////////// -*-C++-*- /////////////////////////////////////////
//
// common.cpp
//
// Spew
//
// Copyright (C) 2004 Hewlett-Packard Corp.
//
//
// 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 version 2 of the License.
//
// 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.
using namespace std;
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdio.h>
#include <stdarg.h>
#include <unistd.h>
#include <math.h>
#include <mntent.h>
#include <sys/types.h>
#include <sys/stat.h>
#ifdef HAVE_PATHS_H
#include <paths.h>
#endif
#include "common.h"
static const char *TRANSFER_RATE_UNITS_STR_LOOKUP[] =
{
"KiB/s",
"KB/s",
"MiB/s",
"MB/s",
"GiB/s",
"GB/s",
"TiB/s",
"TB/s",
(char *)NULL,
};
static capacity_t TRANSFER_RATE_UNITS_CONV_LOOKUP[] =
{
1024ULL,
1000ULL,
1024ULL * 1024ULL,
1000ULL * 1000ULL,
1024ULL * 1024ULL * 1024ULL,
1000ULL * 1000ULL * 1000ULL,
1024ULL * 1024ULL * 1024ULL * 1024ULL,
1000ULL * 1000ULL * 1000ULL * 1000ULL,
};
static const size_t MAX_SPRINTF_CHARS = 2048;
static const size_t MAX_STR_CHARS = 1024;
///////////////////////// basename() ///////////////////////////////////////
const char *basename(char *path)
{
char *name = strrchr(path, '/');
if (name == NULL)
return path;
else
return name + 1;
}
#ifdef HAVE_MOUNT_CHECK
///////////////////////// is_mounted() /////////////////////////////////////
bool is_mounted(const char *path)
{
struct stat statbuf;
dev_t path_rdev;
if (stat(path, &statbuf) < 0)
return false;
if (!S_ISBLK(statbuf.st_mode))
return false;
path_rdev = statbuf.st_rdev;
FILE *mtabfile;
struct mntent *ent;
mtabfile = setmntent(MNTTAB_PATH, "r");
while ((ent = getmntent(mtabfile)) != (struct mntent *)NULL)
{
if (stat(ent->mnt_fsname, &statbuf) < 0)
continue;
if (path_rdev == statbuf.st_rdev)
{
return true;
}
}
endmntent(mtabfile);
return false;
}
#endif // HAVE_MOUNT_CHECK
/////////////////////// strPrintf() /////////////////////////////////////////
string strPrintf(const char *fmt, ...)
{
char *tmpStr = new char[MAX_SPRINTF_CHARS + 1];
va_list ap;
va_start(ap, fmt);
vsnprintf(tmpStr, MAX_SPRINTF_CHARS, fmt, ap);
va_end(ap);
string returnString = tmpStr;
delete[] tmpStr;
return returnString;
}
/////////////////////// strSignal() /////////////////////////////////////////
string strSignal(int sig)
{
#ifdef HAVE_STRSIGNAL
return string(strsignal(sig));
#else
return strPrintf("signal %d", sig);
#endif
}
/////////////////////// strError() //////////////////////////////////////////
string strError(int error_number)
{
#ifdef HAVE_STRERROR
return string(strerror(error_number));
#else
return strPrintf("errno %d", error_number);
#endif
}
////////////////////////// ConvertUnits() ////////////////////////////////
long double convertCapacity(long double bytes, Units_t units)
{
return bytes/(long double)TRANSFER_RATE_UNITS_CONV_LOOKUP[units];
}
//////////////// getTransferRateUnitStr() ///////////////////////////////////
const char *getTransferRateUnitsStr(Units_t units)
{
return TRANSFER_RATE_UNITS_STR_LOOKUP[units];
}
//////////////////////// localTime() ////////////////////////////////////////
//
// Encapsulate thread-safe/non-thread safe versions of localtime. Note that
// this function is not thread-safe unless localtime_r is actually available
// (which means using pthreads on some platforms, e.g., HP-UX).
//
void localTime(const time_t *timep, struct tm *result)
{
time_t currentTime;
struct tm currentBrokenDownTime;
struct tm *currentBrokenDownTimePtr;
time(¤tTime);
#ifdef HAVE_LOCALTIME_R
currentBrokenDownTimePtr = localtime_r(¤tTime,
¤tBrokenDownTime);
#else
currentBrokenDownTimePtr = localtime_r(¤tTime);
#endif
memcpy(result, currentBrokenDownTimePtr, sizeof(struct tm));
}
|