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
|
/*
* UTIL/DKP.C
*
* DKP -w filename [key tok=data]
* DKP filename [key]
*/
#include "defs.h"
int
main(int ac, char **av)
{
char *fileName = NULL;
char *key = NULL;
char *tokval = NULL;
char *val;
int i;
int readMode = 0;
int writeMode = 0;
int forceSort = 0;
int deleteMode = 0;
int trimMode = 0;
KPDB *db;
for (i = 1; i < ac; ++i) {
char *ptr = av[i];
if (*ptr != '-') {
if (fileName == NULL)
fileName = ptr;
else if (key == NULL)
key = ptr;
else if (tokval == NULL)
tokval = ptr;
continue;
}
ptr += 2;
switch(ptr[-1]) {
case 'd':
DebugOpt = 1;
break;
case 'x':
deleteMode = 1;
break;
case 'r':
readMode = 1;
break;
case 'w':
readMode = 1;
writeMode = 1;
break;
case 's':
forceSort = 1;
break;
case 't':
trimMode = 1;
break;
default:
break;
}
}
if (fileName == NULL) {
printf("DKP [-d] [-s] [-r] [-w] filename [key [tok=data]]\n");
exit(0);
}
if (trimMode == 1) {
/*
* trim file, remove dead entries. Only works if there are no other
* users of the file.
*/
int fd = open(fileName, O_RDWR);
forceSort = 1;
if (fd >= 0) {
struct stat st;
char *buf = malloc(strlen(fileName) + 32);
FILE *fi;
FILE *fo;
if (hflock(fd, 0, XLOCK_EX|XLOCK_NB) < 0) {
printf("Unable to exclusively lock %s, someone else is using it\n", fileName);
exit(1);
}
if (fstat(fd, &st) < 0 || st.st_nlink == 0) {
printf("File was ripped out from under us, exiting\n");
exit(1);
}
sprintf(buf, "%s.tmp%d", fileName, (int)getpid());
fi = fdopen(fd, "r");
fo = fopen(buf, "w");
if (fo) {
char tmp[1024];
int lnl = 1;
while (fgets(tmp, sizeof(tmp), fi) != NULL) {
int l = strlen(tmp);
if (lnl && tmp[0] == '-')
continue;
fputs(tmp, fo);
if (l == 0 || tmp[l-1] != '\n')
lnl = 0;
else
lnl = 1;
}
fflush(fo);
if (ferror(fo)) {
printf("Error writing temporary file: %s\n", strerror(errno));
exit(1);
}
fclose(fo);
rename(buf, fileName);
hflock(fd, 0, XLOCK_UN);
fclose(fi);
} else {
printf("Unable to create %s\n", buf);
}
} else {
printf("Unable to open %s\n", fileName);
}
}
db = KPDBOpen(fileName, O_RDWR | ((writeMode) ? O_CREAT : 0));
if (db == NULL) {
fprintf(stderr, "Unable to open KPDB %s\n", fileName);
exit(0);
}
if (forceSort) {
KPDBReSort(db);
}
if (key == NULL && (readMode || writeMode)) {
char buf[1024];
while (fgets(buf, sizeof(buf), stdin) != NULL) {
char *key = strtok(buf, " \t\n");
char *tokval = (key) ? strtok(NULL, " \t\n") : NULL;
if (deleteMode && key) {
KPDBDelete(db, key);
} else if (writeMode && key && tokval && (val = strchr(tokval, '='))) {
*val++ = 0;
KPDBWrite(db, key, tokval, val, 0);
} else if (readMode && key) {
const char *data;
int dataLen;
if ((data = KPDBReadRecord(db, key, 0, &dataLen)) == NULL) {
printf("key %s data <not-found>\n", key);
} else {
printf("key %s data (%d) %*.*s", key, dataLen, dataLen, dataLen, data);
}
}
}
} else if (deleteMode && key) {
KPDBDelete(db, key);
} else if (writeMode && key && tokval && (val = strchr(tokval, '='))) {
int r;
*val++ = 0;
r = KPDBWrite(db, key, tokval, val, 0);
} else if (readMode && key) {
const char *data;
int dataLen;
if ((data = KPDBReadRecord(db, key, 0, &dataLen)) == NULL) {
printf("<not found>\n");
} else {
printf("key %s data (%d) %*.*s", key, dataLen, dataLen, dataLen, data);
}
}
KPDBClose(db);
return(0);
}
|
