354 lines
11 KiB
C
354 lines
11 KiB
C
/* 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 (6.8 kb)"
|
|
//config: default y
|
|
//config: help
|
|
//config: Compute and check MD5 message digest
|
|
//config:
|
|
//config:config SHA1SUM
|
|
//config: bool "sha1sum (6 kb)"
|
|
//config: default y
|
|
//config: help
|
|
//config: Compute and check SHA1 message digest
|
|
//config:
|
|
//config:config SHA256SUM
|
|
//config: bool "sha256sum (7.1 kb)"
|
|
//config: default y
|
|
//config: help
|
|
//config: Compute and check SHA256 message digest
|
|
//config:
|
|
//config:config SHA512SUM
|
|
//config: bool "sha512sum (7.6 kb)"
|
|
//config: default y
|
|
//config: help
|
|
//config: Compute and check SHA512 message digest
|
|
//config:
|
|
//config:config SHA3SUM
|
|
//config: bool "sha3sum (6.3 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: "\n -a BITS 224 (default), 256, 384, 512"
|
|
//usage: )
|
|
|
|
//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_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;
|
|
}
|