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annotate cdbstats.c @ 17:d9c11148df3b default tip

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author Henry S. Thompson <ht@inf.ed.ac.uk>
date Thu, 28 Aug 2025 11:02:58 +0100
parents 978eaa166609
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
0
2cb46628feec from cdb-0.75 per http://cr.yp.to/cdb.html,
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
1 #include "uint32.h"
2cb46628feec from cdb-0.75 per http://cr.yp.to/cdb.html,
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
2 #include "fmt.h"
2cb46628feec from cdb-0.75 per http://cr.yp.to/cdb.html,
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
3 #include "buffer.h"
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Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
4 #include "strerr.h"
2cb46628feec from cdb-0.75 per http://cr.yp.to/cdb.html,
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
5 #include "seek.h"
11
978eaa166609 more trivial changes to get rid of compile-time warnings,
Henry S. Thompson <ht@inf.ed.ac.uk>
parents: 10
diff changeset
6 #include "str.h"
0
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Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
7 #include "cdb.h"
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Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
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8
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Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
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9 #define FATAL "cdbstats: fatal: "
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Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
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10
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Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
11 void die_read(void)
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Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
12 {
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Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
13 strerr_die2sys(111,FATAL,"unable to read input: ");
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Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
14 }
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Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
15 void die_readformat(void)
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Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
16 {
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Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
17 strerr_die2x(111,FATAL,"unable to read input: truncated file");
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Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
18 }
2cb46628feec from cdb-0.75 per http://cr.yp.to/cdb.html,
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
19 void die_write(void)
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Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
20 {
2cb46628feec from cdb-0.75 per http://cr.yp.to/cdb.html,
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
21 strerr_die2sys(111,FATAL,"unable to write output: ");
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Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
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22 }
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Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
23 void put(char *buf,unsigned int len)
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Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
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24 {
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Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
25 if (buffer_put(buffer_1small,buf,len) == -1) die_write();
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Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
26 }
2cb46628feec from cdb-0.75 per http://cr.yp.to/cdb.html,
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
27 void putflush(void)
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Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
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28 {
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Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
29 if (buffer_flush(buffer_1small) == -1) die_write();
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Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
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30 }
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31
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Henry S. Thompson <ht@inf.ed.ac.uk>
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32 uint32 pos = 0;
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33
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34 void get(char *buf,unsigned int len)
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Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
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35 {
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Henry S. Thompson <ht@inf.ed.ac.uk>
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36 int r;
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Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
37 while (len > 0) {
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Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
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38 r = buffer_get(buffer_0,buf,len);
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parents:
diff changeset
39 if (r == -1) die_read();
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Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
40 if (r == 0) die_readformat();
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Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
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41 pos += r;
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Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
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42 buf += r;
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Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
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43 len -= r;
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Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
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44 }
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Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
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45 }
2cb46628feec from cdb-0.75 per http://cr.yp.to/cdb.html,
Henry S. Thompson <ht@inf.ed.ac.uk>
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46
2cb46628feec from cdb-0.75 per http://cr.yp.to/cdb.html,
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
47 void getnum(uint32 *num)
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Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
48 {
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Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
49 char buf[4];
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Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
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50 get(buf,4);
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Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
51 uint32_unpack(buf,num);
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Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
52 }
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Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
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53
2cb46628feec from cdb-0.75 per http://cr.yp.to/cdb.html,
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
54 char strnum[FMT_ULONG];
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Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
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55
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Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
56 void putnum(char *label,unsigned long count)
2cb46628feec from cdb-0.75 per http://cr.yp.to/cdb.html,
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
57 {
2cb46628feec from cdb-0.75 per http://cr.yp.to/cdb.html,
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
58 unsigned int i;
2cb46628feec from cdb-0.75 per http://cr.yp.to/cdb.html,
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
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59 put(label,str_len(label));
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Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
60 for (i = fmt_ulong(0,count);i < 10;++i) put(" ",1);
2cb46628feec from cdb-0.75 per http://cr.yp.to/cdb.html,
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
61 put(strnum,fmt_ulong(strnum,count));
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Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
62 put("\n",1);
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Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
63 }
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parents:
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64
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Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
65 char key[1024];
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parents:
diff changeset
66
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Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
67 static struct cdb c;
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parents:
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68
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Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
69 static unsigned long numrecords;
2cb46628feec from cdb-0.75 per http://cr.yp.to/cdb.html,
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
70 static unsigned long numd[11];
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parents:
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71
10
3bfef1f22a97 trivial changes to get rid of compile-time warnings
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parents: 0
diff changeset
72 int main()
0
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Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
73 {
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Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
74 uint32 eod;
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Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
75 uint32 klen;
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Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
76 uint32 dlen;
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Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
77 seek_pos rest;
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Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
78 int r;
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parents:
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79
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Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
80 cdb_init(&c,0);
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parents:
diff changeset
81
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Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
82 getnum(&eod);
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Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
83 while (pos < 2048) getnum(&dlen);
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parents:
diff changeset
84
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parents:
diff changeset
85 while (pos < eod) {
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Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
86 getnum(&klen);
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Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
87 getnum(&dlen);
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Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
88 if (klen > sizeof key) {
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Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
89 while (klen) { get(key,1); --klen; }
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Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
90 }
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Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
91 else {
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Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
92 get(key,klen);
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Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
93 rest = seek_cur(0);
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Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
94 cdb_findstart(&c);
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Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
95 do {
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Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
96 switch(cdb_findnext(&c,key,klen)) {
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Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
97 case -1: die_read();
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Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
98 case 0: die_readformat();
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99 }
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Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
100 } while (cdb_datapos(&c) != pos);
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parents:
diff changeset
101 if (!c.loop) die_readformat();
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Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
102 ++numrecords;
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Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
103 if (c.loop > 10)
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Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
104 ++numd[10];
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Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
105 else
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Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
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106 ++numd[c.loop - 1];
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parents:
diff changeset
107 if (seek_set(0,rest) == -1) die_read();
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Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
108 }
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Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
109 while (dlen) { get(key,1); --dlen; }
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parents:
diff changeset
110 }
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111
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parents:
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112 putnum("records ",numrecords);
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parents:
diff changeset
113 putnum("d0 ",numd[0]);
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parents:
diff changeset
114 putnum("d1 ",numd[1]);
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parents:
diff changeset
115 putnum("d2 ",numd[2]);
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parents:
diff changeset
116 putnum("d3 ",numd[3]);
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Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
117 putnum("d4 ",numd[4]);
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parents:
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118 putnum("d5 ",numd[5]);
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parents:
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119 putnum("d6 ",numd[6]);
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parents:
diff changeset
120 putnum("d7 ",numd[7]);
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parents:
diff changeset
121 putnum("d8 ",numd[8]);
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Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
122 putnum("d9 ",numd[9]);
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Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
123 putnum(">9 ",numd[10]);
2cb46628feec from cdb-0.75 per http://cr.yp.to/cdb.html,
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
124 putflush();
2cb46628feec from cdb-0.75 per http://cr.yp.to/cdb.html,
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
125 _exit(0);
2cb46628feec from cdb-0.75 per http://cr.yp.to/cdb.html,
Henry S. Thompson <ht@inf.ed.ac.uk>
parents:
diff changeset
126 }