* 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 "busybox.h"
+#include "libbb.h"
-typedef enum { HASH_SHA1, HASH_MD5 } hash_algo_t;
+typedef 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
/* 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 /*, hash_algo_t hash_algo*/)
{
int src_fd, hash_len, count;
union _ctx_ {
+ 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*);
+ void FAST_FUNC (*update)(const void*, size_t, void*);
+ void FAST_FUNC (*final)(void*, void*);
+ hash_algo_t hash_algo = applet_name[3];
- if (strcmp(filename, "-") == 0) {
- src_fd = STDIN_FILENO;
- } else if(0 > (src_fd = open(filename, O_RDONLY))) {
- bb_perror_msg("%s", filename);
+ src_fd = open_or_warn_stdin(filename);
+ if (src_fd < 0) {
return NULL;
}
/* figure specific hash algorithims */
- if (ENABLE_MD5SUM && hash_algo==HASH_MD5) {
+ 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 {
bb_error_msg_and_die("algorithm not supported");
}
- while (0 < (count = read(src_fd, in_buf, 4096))) {
+ while (0 < (count = safe_read(src_fd, in_buf, 4096))) {
update(in_buf, count, &context);
}
return hash_value;
}
-int md5_sha1_sum_main(int argc, char **argv)
+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;
- hash_algo_t hash_algo = ENABLE_MD5SUM ?
- (ENABLE_SHA1SUM ?
- (**argv=='m' ? HASH_MD5 : HASH_SHA1)
- : HASH_MD5)
- : HASH_SHA1;
-
- if (ENABLE_FEATURE_MD5_SHA1_SUM_CHECK)
- flags = bb_getopt_ulflags(argc, argv, "scw");
+ 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");
+ }
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
- ("the -s option is meaningful only when verifying checksums");
+ ("-%c is meaningful only when verifying checksums", 's');
} else if (flags & FLAG_WARN) {
bb_error_msg_and_die
- ("the -w option is meaningful only when verifying checksums");
+ ("-%c is meaningful only when verifying checksums", 'w');
}
}
- if (argc == optind) {
- argv[argc++] = "-";
- }
-
- if (ENABLE_FEATURE_MD5_SHA1_SUM_CHECK && flags & FLAG_CHECK) {
+ 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) {
+ if (argv[1]) {
bb_error_msg_and_die
("only one argument may be specified when using -c");
}
- if (strcmp(file_ptr, "-") == 0) {
- pre_computed_stream = stdin;
- } else {
- pre_computed_stream = xfopen(file_ptr, "r");
- }
+ pre_computed_stream = xfopen_stdin(argv[0]);
- while ((line = bb_get_chomped_line_from_file(pre_computed_stream)) != NULL) {
+ 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");
+ bb_error_msg("invalid format");
}
count_failed++;
return_value = EXIT_FAILURE;
*filename_ptr = '\0';
filename_ptr += 2;
- hash_value = hash_file(filename_ptr, hash_algo);
+ hash_value = hash_file(filename_ptr /*, hash_algo*/);
if (hash_value && (strcmp((char*)hash_value, line) == 0)) {
if (!(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);
+ /*
+ if (fclose_if_not_stdin(pre_computed_stream) == EOF) {
+ bb_perror_msg_and_die("can't close file %s", file_ptr);
}
+ */
} else {
- while (optind < argc) {
- char *file_ptr = argv[optind++];
-
- hash_value = hash_file(file_ptr, hash_algo);
+ do {
+ hash_value = hash_file(*argv/*, hash_algo*/);
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);
}
- }
+ } while (*++argv);
}
- return (return_value);
+ return return_value;
}