Loading...
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 | /* vi: set sw=4 ts=4: */
/*
* Copyright (C) 2003 Glenn L. McGrath
* Copyright (C) 2003-2004 Erik Andersen
*
* Licensed under GPLv2 or later, see file LICENSE in this source tree.
*/
//config:config MD5SUM
//config: bool "md5sum (6.5 kb)"
//config: default y
//config: help
//config: Compute and check MD5 message digest
//config:
//config:config SHA1SUM
//config: bool "sha1sum (5.9 kb)"
//config: default y
//config: help
//config: Compute and check SHA1 message digest
//config:
//config:config SHA256SUM
//config: bool "sha256sum (7 kb)"
//config: default y
//config: help
//config: Compute and check SHA256 message digest
//config:
//config:config SHA512SUM
//config: bool "sha512sum (7.4 kb)"
//config: default y
//config: help
//config: Compute and check SHA512 message digest
//config:
//config:config SHA3SUM
//config: bool "sha3sum (6.1 kb)"
//config: default y
//config: help
//config: Compute and check SHA3 message digest
//config:
//config:comment "Common options for md5sum, sha1sum, sha256sum, sha512sum, sha3sum"
//config: depends on MD5SUM || SHA1SUM || SHA256SUM || SHA512SUM || SHA3SUM
//config:
//config:config FEATURE_MD5_SHA1_SUM_CHECK
//config: bool "Enable -c, -s and -w options"
//config: default y
//config: depends on MD5SUM || SHA1SUM || SHA256SUM || SHA512SUM || SHA3SUM
//config: help
//config: Enabling the -c options allows files to be checked
//config: against pre-calculated hash values.
//config: -s and -w are useful options when verifying checksums.
//applet:IF_MD5SUM(APPLET_NOEXEC(md5sum, md5_sha1_sum, BB_DIR_USR_BIN, BB_SUID_DROP, md5sum))
//applet:IF_SHA1SUM(APPLET_NOEXEC(sha1sum, md5_sha1_sum, BB_DIR_USR_BIN, BB_SUID_DROP, sha1sum))
//applet:IF_SHA3SUM(APPLET_NOEXEC(sha3sum, md5_sha1_sum, BB_DIR_USR_BIN, BB_SUID_DROP, sha3sum))
//applet:IF_SHA256SUM(APPLET_NOEXEC(sha256sum, md5_sha1_sum, BB_DIR_USR_BIN, BB_SUID_DROP, sha256sum))
//applet:IF_SHA512SUM(APPLET_NOEXEC(sha512sum, md5_sha1_sum, BB_DIR_USR_BIN, BB_SUID_DROP, sha512sum))
//kbuild:lib-$(CONFIG_MD5SUM) += md5_sha1_sum.o
//kbuild:lib-$(CONFIG_SHA1SUM) += md5_sha1_sum.o
//kbuild:lib-$(CONFIG_SHA256SUM) += md5_sha1_sum.o
//kbuild:lib-$(CONFIG_SHA512SUM) += md5_sha1_sum.o
//kbuild:lib-$(CONFIG_SHA3SUM) += md5_sha1_sum.o
//usage:#define md5sum_trivial_usage
//usage: IF_FEATURE_MD5_SHA1_SUM_CHECK("[-c[sw]] ")"[FILE]..."
//usage:#define md5sum_full_usage "\n\n"
//usage: "Print" IF_FEATURE_MD5_SHA1_SUM_CHECK(" or check") " MD5 checksums"
//usage: IF_FEATURE_MD5_SHA1_SUM_CHECK( "\n"
//usage: "\n -c Check sums against list in FILEs"
//usage: "\n -s Don't output anything, status code shows success"
//usage: "\n -w Warn about improperly formatted checksum lines"
//usage: )
//usage:
//usage:#define md5sum_example_usage
//usage: "$ md5sum < busybox\n"
//usage: "6fd11e98b98a58f64ff3398d7b324003\n"
//usage: "$ md5sum busybox\n"
//usage: "6fd11e98b98a58f64ff3398d7b324003 busybox\n"
//usage: "$ md5sum -c -\n"
//usage: "6fd11e98b98a58f64ff3398d7b324003 busybox\n"
//usage: "busybox: OK\n"
//usage: "^D\n"
//usage:
//usage:#define sha1sum_trivial_usage
//usage: IF_FEATURE_MD5_SHA1_SUM_CHECK("[-c[sw]] ")"[FILE]..."
//usage:#define sha1sum_full_usage "\n\n"
//usage: "Print" IF_FEATURE_MD5_SHA1_SUM_CHECK(" or check") " SHA1 checksums"
//usage: IF_FEATURE_MD5_SHA1_SUM_CHECK( "\n"
//usage: "\n -c Check sums against list in FILEs"
//usage: "\n -s Don't output anything, status code shows success"
//usage: "\n -w Warn about improperly formatted checksum lines"
//usage: )
//usage:
//usage:#define sha256sum_trivial_usage
//usage: IF_FEATURE_MD5_SHA1_SUM_CHECK("[-c[sw]] ")"[FILE]..."
//usage:#define sha256sum_full_usage "\n\n"
//usage: "Print" IF_FEATURE_MD5_SHA1_SUM_CHECK(" or check") " SHA256 checksums"
//usage: IF_FEATURE_MD5_SHA1_SUM_CHECK( "\n"
//usage: "\n -c Check sums against list in FILEs"
//usage: "\n -s Don't output anything, status code shows success"
//usage: "\n -w Warn about improperly formatted checksum lines"
//usage: )
//usage:
//usage:#define sha512sum_trivial_usage
//usage: IF_FEATURE_MD5_SHA1_SUM_CHECK("[-c[sw]] ")"[FILE]..."
//usage:#define sha512sum_full_usage "\n\n"
//usage: "Print" IF_FEATURE_MD5_SHA1_SUM_CHECK(" or check") " SHA512 checksums"
//usage: IF_FEATURE_MD5_SHA1_SUM_CHECK( "\n"
//usage: "\n -c Check sums against list in FILEs"
//usage: "\n -s Don't output anything, status code shows success"
//usage: "\n -w Warn about improperly formatted checksum lines"
//usage: )
//usage:
//usage:#define sha3sum_trivial_usage
//usage: IF_FEATURE_MD5_SHA1_SUM_CHECK("[-c[sw]] ")"[-a BITS] [FILE]..."
//usage:#define sha3sum_full_usage "\n\n"
//usage: "Print" IF_FEATURE_MD5_SHA1_SUM_CHECK(" or check") " SHA3 checksums"
//usage: IF_FEATURE_MD5_SHA1_SUM_CHECK( "\n"
//usage: "\n -c Check sums against list in FILEs"
//usage: "\n -s Don't output anything, status code shows success"
//usage: "\n -w Warn about improperly formatted checksum lines"
//usage: )
//usage: "\n -a BITS 224 (default), 256, 384, 512"
//FIXME: GNU coreutils 8.25 has no -s option, it has only these two long opts:
// --quiet don't print OK for each successfully verified file
// --status don't output anything, status code shows success
#include "libbb.h"
/* This is a NOEXEC applet. Be very careful! */
enum {
/* 4th letter of applet_name is... */
HASH_MD5 = 's', /* "md5>s<um" */
HASH_SHA1 = '1',
HASH_SHA256 = '2',
HASH_SHA3 = '3',
HASH_SHA512 = '5',
};
#define FLAG_SILENT 1
#define FLAG_CHECK 2
#define FLAG_WARN 4
/* This might be useful elsewhere */
static unsigned char *hash_bin_to_hex(unsigned char *hash_value,
unsigned hash_length)
{
/* xzalloc zero-terminates */
char *hex_value = xzalloc((hash_length * 2) + 1);
bin2hex(hex_value, (char*)hash_value, hash_length);
return (unsigned char *)hex_value;
}
#if !ENABLE_SHA3SUM
# define hash_file(f,w) hash_file(f)
#endif
static uint8_t *hash_file(const char *filename, unsigned sha3_width)
{
int src_fd, hash_len, count;
union _ctx_ {
sha3_ctx_t sha3;
sha512_ctx_t sha512;
sha256_ctx_t sha256;
sha1_ctx_t sha1;
md5_ctx_t md5;
} context;
uint8_t *hash_value;
void FAST_FUNC (*update)(void*, const void*, size_t);
unsigned FAST_FUNC (*final)(void*, void*);
char hash_algo;
src_fd = open_or_warn_stdin(filename);
if (src_fd < 0) {
return NULL;
}
hash_algo = applet_name[3];
/* figure specific hash algorithms */
if (ENABLE_MD5SUM && hash_algo == HASH_MD5) {
md5_begin(&context.md5);
update = (void*)md5_hash;
final = (void*)md5_end;
hash_len = 16;
}
else if (ENABLE_SHA1SUM && hash_algo == HASH_SHA1) {
sha1_begin(&context.sha1);
update = (void*)sha1_hash;
final = (void*)sha1_end;
hash_len = 20;
}
else if (ENABLE_SHA256SUM && hash_algo == HASH_SHA256) {
sha256_begin(&context.sha256);
update = (void*)sha256_hash;
final = (void*)sha256_end;
hash_len = 32;
}
else if (ENABLE_SHA512SUM && hash_algo == HASH_SHA512) {
sha512_begin(&context.sha512);
update = (void*)sha512_hash;
final = (void*)sha512_end;
hash_len = 64;
}
#if ENABLE_SHA3SUM
else if (ENABLE_SHA3SUM && hash_algo == HASH_SHA3) {
sha3_begin(&context.sha3);
update = (void*)sha3_hash;
final = (void*)sha3_end;
/*
* Should support 224, 256, 384, 512.
* We allow any value which does not blow the algorithm up.
*/
if (sha3_width >= 1600/2 /* input block can't be <= 0 */
|| sha3_width == 0 /* hash len can't be 0 */
|| (sha3_width & 0x1f) /* should be multiple of 32 */
/* (because input uses up to 8 byte wide word XORs. 32/4=8) */
) {
bb_error_msg_and_die("bad -a%u", sha3_width);
}
sha3_width /= 4;
context.sha3.input_block_bytes = 1600/8 - sha3_width;
hash_len = sha3_width/2;
}
#endif
else {
xfunc_die(); /* can't reach this */
}
{
RESERVE_CONFIG_UBUFFER(in_buf, 4096);
while ((count = safe_read(src_fd, in_buf, 4096)) > 0) {
update(&context, in_buf, count);
}
hash_value = NULL;
if (count < 0)
bb_perror_msg("can't read '%s'", filename);
else /* count == 0 */ {
final(&context, in_buf);
hash_value = hash_bin_to_hex(in_buf, hash_len);
}
RELEASE_CONFIG_BUFFER(in_buf);
}
if (src_fd != STDIN_FILENO) {
close(src_fd);
}
return hash_value;
}
int md5_sha1_sum_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
int md5_sha1_sum_main(int argc UNUSED_PARAM, char **argv)
{
int return_value = EXIT_SUCCESS;
unsigned flags;
#if ENABLE_SHA3SUM
unsigned sha3_width = 224;
#endif
if (ENABLE_FEATURE_MD5_SHA1_SUM_CHECK) {
/* -b "binary", -t "text" are ignored (shaNNNsum compat) */
/* -s and -w require -c */
#if ENABLE_SHA3SUM
if (applet_name[3] == HASH_SHA3)
flags = getopt32(argv, "^" "scwbta:+" "\0" "s?c:w?c", &sha3_width);
else
#endif
flags = getopt32(argv, "^" "scwbt" "\0" "s?c:w?c");
} else {
#if ENABLE_SHA3SUM
if (applet_name[3] == HASH_SHA3)
getopt32(argv, "a:+", &sha3_width);
else
#endif
getopt32(argv, "");
}
argv += optind;
//argc -= optind;
if (!*argv)
*--argv = (char*)"-";
do {
if (ENABLE_FEATURE_MD5_SHA1_SUM_CHECK && (flags & FLAG_CHECK)) {
FILE *pre_computed_stream;
char *line;
int count_total = 0;
int count_failed = 0;
pre_computed_stream = xfopen_stdin(*argv);
while ((line = xmalloc_fgetline(pre_computed_stream)) != NULL) {
uint8_t *hash_value;
char *filename_ptr;
count_total++;
filename_ptr = strstr(line, " ");
/* handle format for binary checksums */
if (filename_ptr == NULL) {
filename_ptr = strstr(line, " *");
}
if (filename_ptr == NULL) {
if (flags & FLAG_WARN) {
bb_simple_error_msg("invalid format");
}
count_failed++;
return_value = EXIT_FAILURE;
free(line);
continue;
}
*filename_ptr = '\0';
filename_ptr += 2;
hash_value = hash_file(filename_ptr, sha3_width);
if (hash_value && (strcmp((char*)hash_value, line) == 0)) {
if (!(flags & FLAG_SILENT))
printf("%s: OK\n", filename_ptr);
} else {
if (!(flags & FLAG_SILENT))
printf("%s: FAILED\n", filename_ptr);
count_failed++;
return_value = EXIT_FAILURE;
}
/* possible free(NULL) */
free(hash_value);
free(line);
}
if (count_failed && !(flags & FLAG_SILENT)) {
bb_error_msg("WARNING: %d of %d computed checksums did NOT match",
count_failed, count_total);
}
if (count_total == 0) {
return_value = EXIT_FAILURE;
/*
* md5sum from GNU coreutils 8.25 says:
* md5sum: <FILE>: no properly formatted MD5 checksum lines found
*/
bb_error_msg("%s: no checksum lines found", *argv);
}
fclose_if_not_stdin(pre_computed_stream);
} else {
uint8_t *hash_value = hash_file(*argv, sha3_width);
if (hash_value == NULL) {
return_value = EXIT_FAILURE;
} else {
printf("%s %s\n", hash_value, *argv);
free(hash_value);
}
}
} while (*++argv);
return return_value;
}
|