diff options
| -rw-r--r-- | coreutils/md5_sha1_sum.c | 44 |
1 files changed, 24 insertions, 20 deletions
diff --git a/coreutils/md5_sha1_sum.c b/coreutils/md5_sha1_sum.c index 93d8946..e8d3a15 100644 --- a/coreutils/md5_sha1_sum.c +++ b/coreutils/md5_sha1_sum.c @@ -16,17 +16,14 @@ typedef enum { HASH_SHA1, HASH_MD5 } hash_algo_t; /* 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]); + int len = 0; + char *hex_value = xmalloc((hash_length * 2) + 2); + while (hash_length--) { + len += sprintf(hex_value + len, "%02x", *hash_value++); } - return (hex_value); + return hex_value; } static uint8_t *hash_file(const char *filename, hash_algo_t hash_algo) @@ -41,11 +38,13 @@ static uint8_t *hash_file(const char *filename, hash_algo_t hash_algo) 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); - return NULL; + src_fd = STDIN_FILENO; + if (filename[0] != '-' || filename[1]) { /* not "-" */ + src_fd = open(filename, O_RDONLY); + if (src_fd < 0) { + bb_perror_msg("%s", filename); + return NULL; + } } /* figure specific hash algorithims */ @@ -63,7 +62,7 @@ static uint8_t *hash_file(const char *filename, hash_algo_t hash_algo) 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); } @@ -85,7 +84,7 @@ int md5_sha1_sum_main(int argc, char **argv) { int return_value = EXIT_SUCCESS; uint8_t *hash_value; - unsigned int flags; + unsigned flags; hash_algo_t hash_algo = ENABLE_MD5SUM ? (ENABLE_SHA1SUM ? (**argv=='m' ? HASH_MD5 : HASH_SHA1) : HASH_MD5) : HASH_SHA1; @@ -108,7 +107,7 @@ int md5_sha1_sum_main(int argc, char **argv) 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; @@ -120,9 +119,8 @@ int md5_sha1_sum_main(int argc, char **argv) ("only one argument may be specified when using -c"); } - if (strcmp(file_ptr, "-") == 0) { - pre_computed_stream = stdin; - } else { + pre_computed_stream = stdin; + if (file_ptr[0] != '-' || file_ptr[1]) { /* not "-" */ pre_computed_stream = xfopen(file_ptr, "r"); } @@ -131,6 +129,10 @@ int md5_sha1_sum_main(int argc, char **argv) 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"); @@ -162,9 +164,11 @@ int md5_sha1_sum_main(int argc, char **argv) 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("cannot close file %s", file_ptr); } + */ } else { while (optind < argc) { char *file_ptr = argv[optind++]; |