* Licensed under GPLv2 or later, see file LICENSE in this source tree.
*/
+//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: )
+
#include "libbb.h"
/* This is a NOEXEC applet. Be very careful! */
-typedef enum {
+enum {
/* 4th letter of applet_name is... */
HASH_MD5 = 's', /* "md5>s<um" */
HASH_SHA1 = '1',
HASH_SHA256 = '2',
HASH_SHA512 = '5',
-} hash_algo_t;
+};
-#define FLAG_SILENT 1
-#define FLAG_CHECK 2
-#define FLAG_WARN 4
+#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,
return (unsigned char *)hex_value;
}
-static uint8_t *hash_file(const char *filename /*, hash_algo_t hash_algo*/)
+static uint8_t *hash_file(const char *filename)
{
int src_fd, hash_len, count;
union _ctx_ {
sha1_ctx_t sha1;
md5_ctx_t md5;
} context;
- uint8_t *hash_value = NULL;
- RESERVE_CONFIG_UBUFFER(in_buf, 4096);
- void FAST_FUNC (*update)(const void*, size_t, void*);
+ uint8_t *hash_value;
+ void FAST_FUNC (*update)(void*, const void*, size_t);
void FAST_FUNC (*final)(void*, void*);
- hash_algo_t hash_algo = applet_name[3];
+ char hash_algo;
src_fd = open_or_warn_stdin(filename);
if (src_fd < 0) {
return NULL;
}
- /* figure specific hash algorithims */
+ 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*)sha512_end;
hash_len = 64;
} else {
- bb_error_msg_and_die("algorithm not supported");
- }
-
- while (0 < (count = safe_read(src_fd, in_buf, 4096))) {
- update(in_buf, count, &context);
+ xfunc_die(); /* can't reach this */
}
- if (count == 0) {
- final(in_buf, &context);
- hash_value = hash_bin_to_hex(in_buf, hash_len);
+ {
+ 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) {
+ final(&context, in_buf);
+ hash_value = hash_bin_to_hex(in_buf, hash_len);
+ }
+ RELEASE_CONFIG_BUFFER(in_buf);
}
- RELEASE_CONFIG_BUFFER(in_buf);
-
if (src_fd != STDIN_FILENO) {
close(src_fd);
}
int md5_sha1_sum_main(int argc UNUSED_PARAM, char **argv)
{
int return_value = EXIT_SUCCESS;
- uint8_t *hash_value;
unsigned flags;
- /*hash_algo_t hash_algo = applet_name[3];*/
if (ENABLE_FEATURE_MD5_SHA1_SUM_CHECK) {
/* -b "binary", -t "text" are ignored (shaNNNsum compat) */
flags = getopt32(argv, "scwbt");
+ argv += optind;
+ //argc -= optind;
+ } else {
+ argv += 1;
+ //argc -= 1;
}
- else optind = 1;
- argv += optind;
- //argc -= optind;
if (!*argv)
*--argv = (char*)"-";
if (ENABLE_FEATURE_MD5_SHA1_SUM_CHECK && !(flags & FLAG_CHECK)) {
if (flags & FLAG_SILENT) {
- bb_error_msg_and_die
- ("-%c is meaningful only when verifying checksums", 's');
- } else if (flags & FLAG_WARN) {
- bb_error_msg_and_die
- ("-%c is meaningful only when verifying checksums", 'w');
+ bb_error_msg_and_die("-%c is meaningful only with -c", 's');
+ }
+ if (flags & FLAG_WARN) {
+ bb_error_msg_and_die("-%c is meaningful only with -c", 'w');
}
}
- if (ENABLE_FEATURE_MD5_SHA1_SUM_CHECK && (flags & FLAG_CHECK)) {
- FILE *pre_computed_stream;
- int count_total = 0;
- int count_failed = 0;
- char *line;
+ 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;
- if (argv[1]) {
- bb_error_msg_and_die
- ("only one argument may be specified when using -c");
- }
+ pre_computed_stream = xfopen_stdin(*argv);
- pre_computed_stream = xfopen_stdin(argv[0]);
+ while ((line = xmalloc_fgetline(pre_computed_stream)) != NULL) {
+ uint8_t *hash_value;
+ char *filename_ptr;
- while ((line = xmalloc_fgetline(pre_computed_stream)) != NULL) {
- 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_total++;
+ filename_ptr = strstr(line, " ");
+ /* handle format for binary checksums */
+ if (filename_ptr == NULL) {
+ filename_ptr = strstr(line, " *");
}
- count_failed++;
- return_value = EXIT_FAILURE;
+ 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);
+
+ 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);
- continue;
}
- *filename_ptr = '\0';
- filename_ptr += 2;
-
- hash_value = hash_file(filename_ptr /*, hash_algo*/);
-
- 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;
+ if (count_failed && !(flags & FLAG_SILENT)) {
+ bb_error_msg("WARNING: %d of %d computed checksums did NOT match",
+ count_failed, count_total);
}
- /* 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 (fclose_if_not_stdin(pre_computed_stream) == EOF) {
- bb_perror_msg_and_die("can't close file %s", file_ptr);
- }
- */
- } else {
- do {
- hash_value = hash_file(*argv/*, hash_algo*/);
+ fclose_if_not_stdin(pre_computed_stream);
+ } else {
+ uint8_t *hash_value = hash_file(*argv);
if (hash_value == NULL) {
return_value = EXIT_FAILURE;
} else {
printf("%s %s\n", hash_value, *argv);
free(hash_value);
}
- } while (*++argv);
- }
+ }
+ } while (*++argv);
+
return return_value;
}
projects / oweals / busybox.git / blobdiff