1 files changed, 18 insertions, 1 deletions

diff --git a/coreutils/md5_sha1_sum.c b/coreutils/md5_sha1_sum.c
index 2cb6dd43c..92a4d4462 100644
--- a/coreutils/md5_sha1_sum.c
+++ b/coreutils/md5_sha1_sum.c
@@ -55,6 +55,16 @@
 //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 "libbb.h"
 
@@ -65,6 +75,7 @@ enum {
         HASH_MD5 = 's', /* "md5>s<um" */
         HASH_SHA1 = '1',
         HASH_SHA256 = '2',
+        HASH_SHA3 = '3',
         HASH_SHA512 = '5',
 };
 
@@ -86,6 +97,7 @@ 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;
@@ -124,6 +136,11 @@ static uint8_t *hash_file(const char *filename)
                 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 {
                 xfunc_die(); /* can't reach this */
         }
@@ -223,7 +240,7 @@ int md5_sha1_sum_main(int argc UNUSED_PARAM, char **argv)
                         }
                         if (count_failed && !(flags & FLAG_SILENT)) {
                                 bb_error_msg("WARNING: %d of %d computed checksums did NOT match",
-                                                         count_failed, count_total);
+                                                count_failed, count_total);
                         }
                         fclose_if_not_stdin(pre_computed_stream);
                 } else {