+/* vi: set sw=4 ts=4: */
/*
* Copyright (C) 2003 Glenn L. McGrath
* Copyright (C) 2003-2004 Erik Andersen
*
- * Licensed under the GPL v2 or later, see the file LICENSE in this tarball.
+ * Licensed under GPLv2 or later, see file LICENSE in this source tree.
*/
-#include <fcntl.h>
-#include <limits.h>
-#include <stdio.h>
-#include <stdint.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
+//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]] ")"[FILE]..."
+//usage:#define sha3sum_full_usage "\n\n"
+//usage: "Print" IF_FEATURE_MD5_SHA1_SUM_CHECK(" or check") " SHA3-512 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 "busybox.h"
+#include "libbb.h"
-typedef enum { HASH_SHA1, HASH_MD5 } hash_algo_t;
+/* This is a NOEXEC applet. Be very careful! */
-#define FLAG_SILENT 1
-#define FLAG_CHECK 2
-#define FLAG_WARN 4
+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 char hash_length)
+ unsigned hash_length)
{
- int x, len, max;
- unsigned char *hex_value;
-
- max = (hash_length * 2) + 2;
- hex_value = xmalloc(max);
- for (x = len = 0; x < hash_length; x++) {
- len += snprintf((char*)(hex_value + len), max - len, "%02x", hash_value[x]);
- }
- return (hex_value);
+ /* xzalloc zero-terminates */
+ char *hex_value = xzalloc((hash_length * 2) + 1);
+ bin2hex(hex_value, (char*)hash_value, hash_length);
+ 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_ {
+ 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 = NULL;
- RESERVE_CONFIG_UBUFFER(in_buf, 4096);
- void (*update)(const void*, size_t, void*);
- void (*final)(void*, void*);
-
- if(strcmp(filename, "-") == 0) {
- src_fd = STDIN_FILENO;
- } else if(0 > (src_fd = open(filename, O_RDONLY))) {
- bb_perror_msg("%s", filename);
+ uint8_t *hash_value;
+ void FAST_FUNC (*update)(void*, const void*, size_t);
+ void FAST_FUNC (*final)(void*, void*);
+ char hash_algo;
+
+ src_fd = open_or_warn_stdin(filename);
+ if (src_fd < 0) {
return NULL;
}
- // figure specific hash algorithims
- if(ENABLE_MD5SUM && hash_algo==HASH_MD5) {
+ hash_algo = applet_name[3];
+
+ /* figure specific hash algorithms */
+ if (ENABLE_MD5SUM && hash_algo == HASH_MD5) {
md5_begin(&context.md5);
- update = (void (*)(const void*, size_t, void*))md5_hash;
- final = (void (*)(void*, void*))md5_end;
+ update = (void*)md5_hash;
+ final = (void*)md5_end;
hash_len = 16;
- } else if(ENABLE_SHA1SUM && hash_algo==HASH_SHA1) {
+ } else if (ENABLE_SHA1SUM && hash_algo == HASH_SHA1) {
sha1_begin(&context.sha1);
- update = (void (*)(const void*, size_t, void*))sha1_hash;
- final = (void (*)(void*, void*))sha1_end;
+ 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;
+ } else if (ENABLE_SHA3SUM && hash_algo == HASH_SHA3) {
+ sha3_begin(&context.sha3);
+ update = (void*)sha3_hash;
+ final = (void*)sha3_end;
+ hash_len = 64;
} else {
- bb_error_msg_and_die("algotithm not supported");
+ xfunc_die(); /* can't reach this */
}
-
- while(0 < (count = read(src_fd, in_buf, sizeof in_buf))) {
- update(in_buf, count, &context);
+ {
+ 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(count == 0) {
- final(in_buf, &context);
- hash_value = hash_bin_to_hex(in_buf, hash_len);
- }
-
- RELEASE_CONFIG_BUFFER(in_buf);
-
- if(src_fd != STDIN_FILENO) {
+ if (src_fd != STDIN_FILENO) {
close(src_fd);
}
-
+
return hash_value;
}
-/* This could become a common function for md5 as well, by using md5_stream */
-static int hash_files(int argc, char **argv, hash_algo_t hash_algo)
+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;
- uint8_t *hash_value;
- unsigned int flags;
+ unsigned flags;
- if (ENABLE_FEATURE_MD5_SHA1_SUM_CHECK)
- flags = bb_getopt_ulflags(argc, argv, "scw");
+ 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;
+ }
+ if (!*argv)
+ *--argv = (char*)"-";
if (ENABLE_FEATURE_MD5_SHA1_SUM_CHECK && !(flags & FLAG_CHECK)) {
if (flags & FLAG_SILENT) {
- bb_error_msg_and_die
- ("the -s option is meaningful only when verifying checksums");
- } else if (flags & FLAG_WARN) {
- bb_error_msg_and_die
- ("the -w option is meaningful only when verifying checksums");
+ 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 (argc == optind) {
- argv[argc++] = "-";
- }
-
- if (ENABLE_FEATURE_MD5_SHA1_SUM_CHECK && flags & FLAG_CHECK) {
- FILE *pre_computed_stream;
- int count_total = 0;
- int count_failed = 0;
- char *file_ptr = argv[optind];
- char *line;
-
- if (optind + 1 != argc) {
- bb_error_msg_and_die
- ("only one argument may be specified when using -c");
- }
+ 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 (strcmp(file_ptr, "-") == 0) {
- pre_computed_stream = stdin;
- } else {
- pre_computed_stream = bb_xfopen(file_ptr, "r");
- }
+ pre_computed_stream = xfopen_stdin(*argv);
- while ((line = bb_get_chomped_line_from_file(pre_computed_stream)) != NULL) {
- char *filename_ptr;
+ while ((line = xmalloc_fgetline(pre_computed_stream)) != NULL) {
+ uint8_t *hash_value;
+ char *filename_ptr;
- count_total++;
- 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;
- free(line);
- continue;
- }
- *filename_ptr = '\0';
- filename_ptr += 2;
+ 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, hash_algo);
+ 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;
+ 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);
}
- /* 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 (bb_fclose_nonstdin(pre_computed_stream) == EOF) {
- bb_perror_msg_and_die("Couldnt close file %s", file_ptr);
- }
- } else {
- while (optind < argc) {
- char *file_ptr = argv[optind++];
-
- hash_value = hash_file(file_ptr, hash_algo);
+ if (count_failed && !(flags & FLAG_SILENT)) {
+ bb_error_msg("WARNING: %d of %d computed checksums did NOT match",
+ count_failed, count_total);
+ }
+ 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, file_ptr);
+ printf("%s %s\n", hash_value, *argv);
free(hash_value);
}
}
- }
- return (return_value);
-}
+ } while (*++argv);
-#ifdef CONFIG_MD5SUM
-int md5sum_main(int argc, char **argv)
-{
- return(hash_files(argc, argv, HASH_MD5));
-}
-#endif
-
-#ifdef CONFIG_SHA1SUM
-int sha1sum_main(int argc, char **argv)
-{
- return(hash_files(argc, argv, HASH_SHA1));
+ return return_value;
}
-#endif
projects / platform / upstream / busybox.git / blobdiff