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{md5,shaN}sum: make -c EMPTY fail

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function                                             old     new   delta
md5_sha1_sum_main                                    466     485     +19

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko
2016-07-11 19:51:08 +02:00
parent f6348e50ef
commit b0056ea86d
2 changed files with 31 additions and 14 deletions
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23
coreutils/md5_sha1_sum.c
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@@ -66,6 +66,10 @@
//usage: "\n -w Warn about improperly formatted checksum lines"
//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! */
@@ -174,6 +178,8 @@ int md5_sha1_sum_main(int argc UNUSED_PARAM, char **argv)
unsigned flags;
if (ENABLE_FEATURE_MD5_SHA1_SUM_CHECK) {
/* -s and -w require -c */
opt_complementary = "s?c:w?c";
/* -b "binary", -t "text" are ignored (shaNNNsum compat) */
flags = getopt32(argv, "scwbt");
argv += optind;
@@ -185,15 +191,6 @@ int md5_sha1_sum_main(int argc UNUSED_PARAM, char **argv)
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 with -c", 's');
}
if (flags & FLAG_WARN) {
bb_error_msg_and_die("-%c is meaningful only with -c", 'w');
}
}
do {
if (ENABLE_FEATURE_MD5_SHA1_SUM_CHECK && (flags & FLAG_CHECK)) {
FILE *pre_computed_stream;
@@ -244,6 +241,14 @@ int md5_sha1_sum_main(int argc UNUSED_PARAM, char **argv)
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);