1 /* vi: set sw=4 ts=4: */
3 * Copyright (C) 2003 Glenn L. McGrath
4 * Copyright (C) 2003-2004 Erik Andersen
6 * Licensed under GPLv2 or later, see file LICENSE in this source tree.
9 //usage:#define md5sum_trivial_usage
10 //usage: IF_FEATURE_MD5_SHA1_SUM_CHECK("[-c[sw]] ")"[FILE]..."
11 //usage:#define md5sum_full_usage "\n\n"
12 //usage: "Print" IF_FEATURE_MD5_SHA1_SUM_CHECK(" or check") " MD5 checksums"
13 //usage: IF_FEATURE_MD5_SHA1_SUM_CHECK( "\n"
14 //usage: "\n -c Check sums against list in FILEs"
15 //usage: "\n -s Don't output anything, status code shows success"
16 //usage: "\n -w Warn about improperly formatted checksum lines"
19 //usage:#define md5sum_example_usage
20 //usage: "$ md5sum < busybox\n"
21 //usage: "6fd11e98b98a58f64ff3398d7b324003\n"
22 //usage: "$ md5sum busybox\n"
23 //usage: "6fd11e98b98a58f64ff3398d7b324003 busybox\n"
24 //usage: "$ md5sum -c -\n"
25 //usage: "6fd11e98b98a58f64ff3398d7b324003 busybox\n"
26 //usage: "busybox: OK\n"
29 //usage:#define sha1sum_trivial_usage
30 //usage: IF_FEATURE_MD5_SHA1_SUM_CHECK("[-c[sw]] ")"[FILE]..."
31 //usage:#define sha1sum_full_usage "\n\n"
32 //usage: "Print" IF_FEATURE_MD5_SHA1_SUM_CHECK(" or check") " SHA1 checksums"
33 //usage: IF_FEATURE_MD5_SHA1_SUM_CHECK( "\n"
34 //usage: "\n -c Check sums against list in FILEs"
35 //usage: "\n -s Don't output anything, status code shows success"
36 //usage: "\n -w Warn about improperly formatted checksum lines"
39 //usage:#define sha256sum_trivial_usage
40 //usage: IF_FEATURE_MD5_SHA1_SUM_CHECK("[-c[sw]] ")"[FILE]..."
41 //usage:#define sha256sum_full_usage "\n\n"
42 //usage: "Print" IF_FEATURE_MD5_SHA1_SUM_CHECK(" or check") " SHA256 checksums"
43 //usage: IF_FEATURE_MD5_SHA1_SUM_CHECK( "\n"
44 //usage: "\n -c Check sums against list in FILEs"
45 //usage: "\n -s Don't output anything, status code shows success"
46 //usage: "\n -w Warn about improperly formatted checksum lines"
49 //usage:#define sha512sum_trivial_usage
50 //usage: IF_FEATURE_MD5_SHA1_SUM_CHECK("[-c[sw]] ")"[FILE]..."
51 //usage:#define sha512sum_full_usage "\n\n"
52 //usage: "Print" IF_FEATURE_MD5_SHA1_SUM_CHECK(" or check") " SHA512 checksums"
53 //usage: IF_FEATURE_MD5_SHA1_SUM_CHECK( "\n"
54 //usage: "\n -c Check sums against list in FILEs"
55 //usage: "\n -s Don't output anything, status code shows success"
56 //usage: "\n -w Warn about improperly formatted checksum lines"
61 /* This is a NOEXEC applet. Be very careful! */
64 /* 4th letter of applet_name is... */
65 HASH_MD5
= 's', /* "md5>s<um" */
75 /* This might be useful elsewhere */
76 static unsigned char *hash_bin_to_hex(unsigned char *hash_value
,
79 /* xzalloc zero-terminates */
80 char *hex_value
= xzalloc((hash_length
* 2) + 1);
81 bin2hex(hex_value
, (char*)hash_value
, hash_length
);
82 return (unsigned char *)hex_value
;
85 static uint8_t *hash_file(const char *filename
)
87 int src_fd
, hash_len
, count
;
95 void FAST_FUNC (*update
)(void*, const void*, size_t);
96 void FAST_FUNC (*final
)(void*, void*);
99 src_fd
= open_or_warn_stdin(filename
);
104 hash_algo
= applet_name
[3];
106 /* figure specific hash algorithms */
107 if (ENABLE_MD5SUM
&& hash_algo
== HASH_MD5
) {
108 md5_begin(&context
.md5
);
109 update
= (void*)md5_hash
;
110 final
= (void*)md5_end
;
112 } else if (ENABLE_SHA1SUM
&& hash_algo
== HASH_SHA1
) {
113 sha1_begin(&context
.sha1
);
114 update
= (void*)sha1_hash
;
115 final
= (void*)sha1_end
;
117 } else if (ENABLE_SHA256SUM
&& hash_algo
== HASH_SHA256
) {
118 sha256_begin(&context
.sha256
);
119 update
= (void*)sha256_hash
;
120 final
= (void*)sha256_end
;
122 } else if (ENABLE_SHA512SUM
&& hash_algo
== HASH_SHA512
) {
123 sha512_begin(&context
.sha512
);
124 update
= (void*)sha512_hash
;
125 final
= (void*)sha512_end
;
128 xfunc_die(); /* can't reach this */
132 RESERVE_CONFIG_UBUFFER(in_buf
, 4096);
133 while ((count
= safe_read(src_fd
, in_buf
, 4096)) > 0) {
134 update(&context
, in_buf
, count
);
138 final(&context
, in_buf
);
139 hash_value
= hash_bin_to_hex(in_buf
, hash_len
);
141 RELEASE_CONFIG_BUFFER(in_buf
);
144 if (src_fd
!= STDIN_FILENO
) {
151 int md5_sha1_sum_main(int argc
, char **argv
) MAIN_EXTERNALLY_VISIBLE
;
152 int md5_sha1_sum_main(int argc UNUSED_PARAM
, char **argv
)
154 int return_value
= EXIT_SUCCESS
;
157 if (ENABLE_FEATURE_MD5_SHA1_SUM_CHECK
) {
158 /* -b "binary", -t "text" are ignored (shaNNNsum compat) */
159 flags
= getopt32(argv
, "scwbt");
167 *--argv
= (char*)"-";
169 if (ENABLE_FEATURE_MD5_SHA1_SUM_CHECK
&& !(flags
& FLAG_CHECK
)) {
170 if (flags
& FLAG_SILENT
) {
171 bb_error_msg_and_die("-%c is meaningful only with -c", 's');
173 if (flags
& FLAG_WARN
) {
174 bb_error_msg_and_die("-%c is meaningful only with -c", 'w');
179 if (ENABLE_FEATURE_MD5_SHA1_SUM_CHECK
&& (flags
& FLAG_CHECK
)) {
180 FILE *pre_computed_stream
;
183 int count_failed
= 0;
185 pre_computed_stream
= xfopen_stdin(*argv
);
187 while ((line
= xmalloc_fgetline(pre_computed_stream
)) != NULL
) {
192 filename_ptr
= strstr(line
, " ");
193 /* handle format for binary checksums */
194 if (filename_ptr
== NULL
) {
195 filename_ptr
= strstr(line
, " *");
197 if (filename_ptr
== NULL
) {
198 if (flags
& FLAG_WARN
) {
199 bb_error_msg("invalid format");
202 return_value
= EXIT_FAILURE
;
206 *filename_ptr
= '\0';
209 hash_value
= hash_file(filename_ptr
);
211 if (hash_value
&& (strcmp((char*)hash_value
, line
) == 0)) {
212 if (!(flags
& FLAG_SILENT
))
213 printf("%s: OK\n", filename_ptr
);
215 if (!(flags
& FLAG_SILENT
))
216 printf("%s: FAILED\n", filename_ptr
);
218 return_value
= EXIT_FAILURE
;
220 /* possible free(NULL) */
224 if (count_failed
&& !(flags
& FLAG_SILENT
)) {
225 bb_error_msg("WARNING: %d of %d computed checksums did NOT match",
226 count_failed
, count_total
);
228 fclose_if_not_stdin(pre_computed_stream
);
230 uint8_t *hash_value
= hash_file(*argv
);
231 if (hash_value
== NULL
) {
232 return_value
= EXIT_FAILURE
;
234 printf("%s %s\n", hash_value
, *argv
);