diff options
Diffstat (limited to 'e2fsprogs/uuid/uuid_time.c')
-rw-r--r-- | e2fsprogs/uuid/uuid_time.c | 161 |
1 files changed, 0 insertions, 161 deletions
diff --git a/e2fsprogs/uuid/uuid_time.c b/e2fsprogs/uuid/uuid_time.c deleted file mode 100644 index b54d67322..000000000 --- a/e2fsprogs/uuid/uuid_time.c +++ /dev/null | |||
@@ -1,161 +0,0 @@ | |||
1 | /* vi: set sw=4 ts=4: */ | ||
2 | /* | ||
3 | * uuid_time.c --- Interpret the time field from a uuid. This program | ||
4 | * violates the UUID abstraction barrier by reaching into the guts | ||
5 | * of a UUID and interpreting it. | ||
6 | * | ||
7 | * Copyright (C) 1998, 1999 Theodore Ts'o. | ||
8 | * | ||
9 | * %Begin-Header% | ||
10 | * Redistribution and use in source and binary forms, with or without | ||
11 | * modification, are permitted provided that the following conditions | ||
12 | * are met: | ||
13 | * 1. Redistributions of source code must retain the above copyright | ||
14 | * notice, and the entire permission notice in its entirety, | ||
15 | * including the disclaimer of warranties. | ||
16 | * 2. Redistributions in binary form must reproduce the above copyright | ||
17 | * notice, this list of conditions and the following disclaimer in the | ||
18 | * documentation and/or other materials provided with the distribution. | ||
19 | * 3. The name of the author may not be used to endorse or promote | ||
20 | * products derived from this software without specific prior | ||
21 | * written permission. | ||
22 | * | ||
23 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED | ||
24 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES | ||
25 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ALL OF | ||
26 | * WHICH ARE HEREBY DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE | ||
27 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | ||
28 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT | ||
29 | * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR | ||
30 | * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF | ||
31 | * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | ||
32 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE | ||
33 | * USE OF THIS SOFTWARE, EVEN IF NOT ADVISED OF THE POSSIBILITY OF SUCH | ||
34 | * DAMAGE. | ||
35 | * %End-Header% | ||
36 | */ | ||
37 | |||
38 | #include <stdio.h> | ||
39 | #include <unistd.h> | ||
40 | #include <stdlib.h> | ||
41 | #include <sys/types.h> | ||
42 | #include <time.h> | ||
43 | |||
44 | #include "uuidP.h" | ||
45 | |||
46 | time_t uuid_time(const uuid_t uu, struct timeval *ret_tv) | ||
47 | { | ||
48 | struct uuid uuid; | ||
49 | uint32_t high; | ||
50 | struct timeval tv; | ||
51 | unsigned long long clock_reg; | ||
52 | |||
53 | uuid_unpack(uu, &uuid); | ||
54 | |||
55 | high = uuid.time_mid | ((uuid.time_hi_and_version & 0xFFF) << 16); | ||
56 | clock_reg = uuid.time_low | ((unsigned long long) high << 32); | ||
57 | |||
58 | clock_reg -= (((unsigned long long) 0x01B21DD2) << 32) + 0x13814000; | ||
59 | tv.tv_sec = clock_reg / 10000000; | ||
60 | tv.tv_usec = (clock_reg % 10000000) / 10; | ||
61 | |||
62 | if (ret_tv) | ||
63 | *ret_tv = tv; | ||
64 | |||
65 | return tv.tv_sec; | ||
66 | } | ||
67 | |||
68 | int uuid_type(const uuid_t uu) | ||
69 | { | ||
70 | struct uuid uuid; | ||
71 | |||
72 | uuid_unpack(uu, &uuid); | ||
73 | return ((uuid.time_hi_and_version >> 12) & 0xF); | ||
74 | } | ||
75 | |||
76 | int uuid_variant(const uuid_t uu) | ||
77 | { | ||
78 | struct uuid uuid; | ||
79 | int var; | ||
80 | |||
81 | uuid_unpack(uu, &uuid); | ||
82 | var = uuid.clock_seq; | ||
83 | |||
84 | if ((var & 0x8000) == 0) | ||
85 | return UUID_VARIANT_NCS; | ||
86 | if ((var & 0x4000) == 0) | ||
87 | return UUID_VARIANT_DCE; | ||
88 | if ((var & 0x2000) == 0) | ||
89 | return UUID_VARIANT_MICROSOFT; | ||
90 | return UUID_VARIANT_OTHER; | ||
91 | } | ||
92 | |||
93 | #ifdef DEBUG | ||
94 | static const char *variant_string(int variant) | ||
95 | { | ||
96 | switch (variant) { | ||
97 | case UUID_VARIANT_NCS: | ||
98 | return "NCS"; | ||
99 | case UUID_VARIANT_DCE: | ||
100 | return "DCE"; | ||
101 | case UUID_VARIANT_MICROSOFT: | ||
102 | return "Microsoft"; | ||
103 | default: | ||
104 | return "Other"; | ||
105 | } | ||
106 | } | ||
107 | |||
108 | |||
109 | int | ||
110 | main(int argc, char **argv) | ||
111 | { | ||
112 | uuid_t buf; | ||
113 | time_t time_reg; | ||
114 | struct timeval tv; | ||
115 | int type, variant; | ||
116 | |||
117 | if (argc != 2) { | ||
118 | fprintf(stderr, "Usage: %s uuid\n", argv[0]); | ||
119 | exit(1); | ||
120 | } | ||
121 | if (uuid_parse(argv[1], buf)) { | ||
122 | fprintf(stderr, "Invalid UUID: %s\n", argv[1]); | ||
123 | exit(1); | ||
124 | } | ||
125 | variant = uuid_variant(buf); | ||
126 | type = uuid_type(buf); | ||
127 | time_reg = uuid_time(buf, &tv); | ||
128 | |||
129 | printf("UUID variant is %d (%s)\n", variant, variant_string(variant)); | ||
130 | if (variant != UUID_VARIANT_DCE) { | ||
131 | printf("Warning: This program only knows how to interpret " | ||
132 | "DCE UUIDs.\n\tThe rest of the output is likely " | ||
133 | "to be incorrect!!\n"); | ||
134 | } | ||
135 | printf("UUID type is %d", type); | ||
136 | switch (type) { | ||
137 | case 1: | ||
138 | printf(" (time based)\n"); | ||
139 | break; | ||
140 | case 2: | ||
141 | printf(" (DCE)\n"); | ||
142 | break; | ||
143 | case 3: | ||
144 | printf(" (name-based)\n"); | ||
145 | break; | ||
146 | case 4: | ||
147 | printf(" (random)\n"); | ||
148 | break; | ||
149 | default: | ||
150 | puts(""); | ||
151 | } | ||
152 | if (type != 1) { | ||
153 | printf("Warning: not a time-based UUID, so UUID time " | ||
154 | "decoding will likely not work!\n"); | ||
155 | } | ||
156 | printf("UUID time is: (%ld, %ld): %s\n", tv.tv_sec, tv.tv_usec, | ||
157 | ctime(&time_reg)); | ||
158 | |||
159 | return 0; | ||
160 | } | ||
161 | #endif | ||