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author | Glenn L McGrath <bug1@ihug.co.nz> | 2003-02-17 08:23:22 +0000 |
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committer | Glenn L McGrath <bug1@ihug.co.nz> | 2003-02-17 08:23:22 +0000 |
commit | ae0f1e7052c1a114666632061d45a9b1f9ca3aa3 (patch) | |
tree | 70f0f36e92490955a940bc7c27f0358c41d356f5 /coreutils | |
parent | 4a4c677fccabdcd6db509488c9cb5d784afaa59d (diff) | |
download | busybox-w32-ae0f1e7052c1a114666632061d45a9b1f9ca3aa3.tar.gz busybox-w32-ae0f1e7052c1a114666632061d45a9b1f9ca3aa3.tar.bz2 busybox-w32-ae0f1e7052c1a114666632061d45a9b1f9ca3aa3.zip |
New applet sha1sum
Diffstat (limited to 'coreutils')
-rw-r--r-- | coreutils/Config.in | 6 | ||||
-rw-r--r-- | coreutils/Makefile.in | 1 | ||||
-rw-r--r-- | coreutils/sha1sum.c | 224 |
3 files changed, 231 insertions, 0 deletions
diff --git a/coreutils/Config.in b/coreutils/Config.in index 6ee319a0d..5b9996d5b 100644 --- a/coreutils/Config.in +++ b/coreutils/Config.in | |||
@@ -306,6 +306,12 @@ config CONFIG_RMDIR | |||
306 | help | 306 | help |
307 | Please submit a patch to add help text for this item. | 307 | Please submit a patch to add help text for this item. |
308 | 308 | ||
309 | config CONFIG_SHA1SUM | ||
310 | bool "sha1sum" | ||
311 | default n | ||
312 | help | ||
313 | Compute and check SHA1 message digest | ||
314 | |||
309 | config CONFIG_SLEEP | 315 | config CONFIG_SLEEP |
310 | bool "sleep" | 316 | bool "sleep" |
311 | default n | 317 | default n |
diff --git a/coreutils/Makefile.in b/coreutils/Makefile.in index 78ee307ec..be34934ab 100644 --- a/coreutils/Makefile.in +++ b/coreutils/Makefile.in | |||
@@ -61,6 +61,7 @@ COREUTILS-$(CONFIG_PWD) += pwd.o | |||
61 | COREUTILS-$(CONFIG_REALPATH) += realpath.o | 61 | COREUTILS-$(CONFIG_REALPATH) += realpath.o |
62 | COREUTILS-$(CONFIG_RM) += rm.o | 62 | COREUTILS-$(CONFIG_RM) += rm.o |
63 | COREUTILS-$(CONFIG_RMDIR) += rmdir.o | 63 | COREUTILS-$(CONFIG_RMDIR) += rmdir.o |
64 | COREUTILS-$(CONFIG_SHA1SUM) += sha1sum.o | ||
64 | COREUTILS-$(CONFIG_SLEEP) += sleep.o | 65 | COREUTILS-$(CONFIG_SLEEP) += sleep.o |
65 | COREUTILS-$(CONFIG_SORT) += sort.o | 66 | COREUTILS-$(CONFIG_SORT) += sort.o |
66 | COREUTILS-$(CONFIG_STTY) += stty.o | 67 | COREUTILS-$(CONFIG_STTY) += stty.o |
diff --git a/coreutils/sha1sum.c b/coreutils/sha1sum.c new file mode 100644 index 000000000..d79a88ec1 --- /dev/null +++ b/coreutils/sha1sum.c | |||
@@ -0,0 +1,224 @@ | |||
1 | /* | ||
2 | * Based on shasum from http://www.netsw.org/crypto/hash/ | ||
3 | * | ||
4 | * shasum fixed with reference to coreutils and the nist fip180-1 document | ||
5 | * which is incorrect, in section 5 | ||
6 | * - ft(B,C,D) = (B AND C) OR ((NOT B) AND D) ( 0 <= t <= 19) | ||
7 | * + ft(B,C,D) = (D XOR (B AND (C XOR S))) ( 0 <= t <= 19) | ||
8 | * | ||
9 | * Copyright (C) 1999 Scott G. Miller | ||
10 | * Copyright (C) 2003 Glenn L. McGrath | ||
11 | * | ||
12 | * This program is free software; you can redistribute it and/or modify | ||
13 | * it under the terms of the GNU General Public License as published by | ||
14 | * the Free Software Foundation; either version 2 of the License, or | ||
15 | * (at your option) any later version. | ||
16 | * | ||
17 | * This program is distributed in the hope that it will be useful, | ||
18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
20 | * GNU General Public License for more details. | ||
21 | * | ||
22 | * You should have received a copy of the GNU General Public License | ||
23 | * along with this program; if not, write to the Free Software | ||
24 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | ||
25 | */ | ||
26 | |||
27 | #include <stdio.h> | ||
28 | #include <getopt.h> | ||
29 | #include <stdio.h> | ||
30 | #include <stdlib.h> | ||
31 | #include <string.h> | ||
32 | |||
33 | #include "busybox.h" | ||
34 | |||
35 | #ifdef WORDS_BIGENDIAN | ||
36 | # define SWAP(n) (n) | ||
37 | #else | ||
38 | # define SWAP(n) \ | ||
39 | (((n) << 24) | (((n) & 0xff00) << 8) | (((n) >> 8) & 0xff00) | ((n) >> 24)) | ||
40 | #endif | ||
41 | |||
42 | #define f1(X,Y,Z) (Z ^ (X & (Y ^ Z))) | ||
43 | #define f2(X,Y,Z) (X ^ Y ^ Z) | ||
44 | #define f3(X,Y,Z) ((X & Y) | (Z & (X | Y))) | ||
45 | |||
46 | #define rol1(x) (x<<1) | ((x>>31) & 1) | ||
47 | #define rol5(x) ((x<<5) | ((x>>27) & 0x1f)) | ||
48 | #define rol30(x) (x<<30) | ((x>>2) & 0x3fffffff) | ||
49 | |||
50 | static void sha_hash(unsigned int *data, int *hash) | ||
51 | { | ||
52 | RESERVE_CONFIG_BUFFER(word, 80 * sizeof(unsigned int)); | ||
53 | int *W = (unsigned int *) &word; | ||
54 | int a = hash[0]; | ||
55 | int b = hash[1]; | ||
56 | int c = hash[2]; | ||
57 | int d = hash[3]; | ||
58 | int e = hash[4]; | ||
59 | int t; | ||
60 | int TEMP; | ||
61 | |||
62 | for (t = 0; t < 16; t++) { | ||
63 | W[t] = SWAP(data[t]); | ||
64 | } | ||
65 | |||
66 | /** Data expansion from 16 to 80 blocks **/ | ||
67 | for (t = 16; t < 80; t++) { | ||
68 | int x = W[t - 3] ^ W[t - 8] ^ W[t - 14] ^ W[t - 16]; | ||
69 | W[t] = rol1(x); | ||
70 | } | ||
71 | |||
72 | /** Main loops **/ | ||
73 | for (t = 0; t < 20; t++) { | ||
74 | TEMP = rol5(a) + f1(b, c, d) + e + W[t] + 0x5a827999; | ||
75 | e = d; | ||
76 | d = c; | ||
77 | c = rol30(b); | ||
78 | b = a; | ||
79 | a = TEMP; | ||
80 | } | ||
81 | for (; t < 40; t++) { | ||
82 | TEMP = rol5(a) + f2(b, c, d) + e + W[t] + 0x6ed9eba1; | ||
83 | e = d; | ||
84 | d = c; | ||
85 | c = rol30(b); | ||
86 | b = a; | ||
87 | a = TEMP; | ||
88 | } | ||
89 | for (; t < 60; t++) { | ||
90 | TEMP = rol5(a) + f3(b, c, d) + e + W[t] + 0x8f1bbcdc; | ||
91 | e = d; | ||
92 | d = c; | ||
93 | c = rol30(b); | ||
94 | b = a; | ||
95 | a = TEMP; | ||
96 | } | ||
97 | for (; t < 80; t++) { | ||
98 | TEMP = rol5(a) + f2(b, c, d) + e + W[t] + 0xca62c1d6; | ||
99 | e = d; | ||
100 | d = c; | ||
101 | c = rol30(b); | ||
102 | b = a; | ||
103 | a = TEMP; | ||
104 | } | ||
105 | |||
106 | RELEASE_CONFIG_BUFFER(word); | ||
107 | |||
108 | hash[0] += a; | ||
109 | hash[1] += b; | ||
110 | hash[2] += c; | ||
111 | hash[3] += d; | ||
112 | hash[4] += e; | ||
113 | } | ||
114 | |||
115 | static void sha1sum_stream(FILE * fd, unsigned int *hashval) | ||
116 | { | ||
117 | RESERVE_CONFIG_BUFFER(buffer, 64); | ||
118 | int length = 0; | ||
119 | |||
120 | hashval[0] = 0x67452301; | ||
121 | hashval[1] = 0xefcdab89; | ||
122 | hashval[2] = 0x98badcfe; | ||
123 | hashval[3] = 0x10325476; | ||
124 | hashval[4] = 0xc3d2e1f0; | ||
125 | |||
126 | while (!feof(fd) && !ferror(fd)) { | ||
127 | int c = fread(&buffer, 1, 64, fd); | ||
128 | length += c; | ||
129 | if (feof(fd) || ferror(fd)) { | ||
130 | int i; | ||
131 | /* If reading from stdin we need to get rid of a tailing character */ | ||
132 | if (fd == stdin) { | ||
133 | c--; | ||
134 | length--; | ||
135 | } | ||
136 | for (i = c; i < 61; i++) { | ||
137 | if (i == c) { | ||
138 | buffer[i] = 0x80; | ||
139 | } | ||
140 | else if (i == 60) { | ||
141 | /* This ends up being swaped twice */ | ||
142 | ((unsigned int *) &buffer)[15] = SWAP(length * 8); | ||
143 | } else { | ||
144 | buffer[i] = 0; | ||
145 | } | ||
146 | } | ||
147 | } | ||
148 | sha_hash((unsigned int *) &buffer, hashval); | ||
149 | } | ||
150 | |||
151 | RELEASE_CONFIG_BUFFER(buffer); | ||
152 | |||
153 | return; | ||
154 | } | ||
155 | |||
156 | static void print_hash(unsigned short hash_length, unsigned int *hash_val, char *filename) | ||
157 | { | ||
158 | int x; | ||
159 | |||
160 | for (x = 0; x < hash_length; x++) { | ||
161 | printf("%08x", hash_val[x]); | ||
162 | } | ||
163 | if (filename != NULL) { | ||
164 | putchar(' '); | ||
165 | putchar(' '); | ||
166 | puts(filename); | ||
167 | } | ||
168 | putchar('\n'); | ||
169 | } | ||
170 | |||
171 | /* This should become a common function used by sha1sum and md5sum, | ||
172 | * it needs extra functionality first | ||
173 | */ | ||
174 | extern int authenticate(const int argc, char **argv, void (*hash_ptr)(FILE *stream, unsigned int *hashval), const unsigned short hash_length) | ||
175 | { | ||
176 | int opt; | ||
177 | unsigned int *hashval; | ||
178 | |||
179 | while ((opt = getopt(argc, argv, "sc:w")) != -1) { | ||
180 | switch (opt) { | ||
181 | #if 0 | ||
182 | case 's': /* Dont output anything, status code shows success */ | ||
183 | break; | ||
184 | case 'c': /* Check a list of checksums against stored values */ | ||
185 | break; | ||
186 | case 'w': /* Warn of bad formatting when checking files */ | ||
187 | break; | ||
188 | #endif | ||
189 | default: | ||
190 | show_usage(); | ||
191 | } | ||
192 | } | ||
193 | |||
194 | hashval = xmalloc(hash_length * sizeof(unsigned int)); | ||
195 | |||
196 | if (argc == optind) { | ||
197 | hash_ptr(stdin, hashval); | ||
198 | print_hash(hash_length, hashval, NULL); | ||
199 | } else { | ||
200 | int i; | ||
201 | |||
202 | for (i = optind; i < argc; i++) { | ||
203 | if (!strcmp(argv[i], "-")) { | ||
204 | hash_ptr(stdin, hashval); | ||
205 | print_hash(hash_length, hashval, NULL); | ||
206 | } else { | ||
207 | FILE *stream = xfopen(argv[i], "r"); | ||
208 | hash_ptr(stream, hashval); | ||
209 | fclose(stream); | ||
210 | print_hash(hash_length, hashval, argv[i]); | ||
211 | } | ||
212 | } | ||
213 | } | ||
214 | |||
215 | free(hashval); | ||
216 | |||
217 | return 0; | ||
218 | } | ||
219 | |||
220 | extern int sha1sum_main(int argc, char **argv) | ||
221 | { | ||
222 | /* sha1 length is 5 nibbles */ | ||
223 | return (authenticate(argc, argv, sha1sum_stream, 5)); | ||
224 | } | ||