od: fix printing of high-bit chars

Example: echo £ | od -c

Signed-off-by: Ron Yorston <rmy@tigress.co.uk>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 6 insertions, 8 deletions

diff --git a/coreutils/od_bloaty.c b/coreutils/od_bloaty.c
index 2c26dda16..ab7ea997d 100644
--- a/coreutils/od_bloaty.c
+++ b/coreutils/od_bloaty.c
@@ -387,11 +387,11 @@ print_named_ascii(size_t n_bytes, const char *block,
                 " sp"
         };
         // buf[N] pos:  01234 56789
-        char buf[12] = "   x\0 0xx\0";
-        // actually "   x\0 xxx\0", but want to share string with print_ascii.
+        char buf[12] = "   x\0 xxx\0";
         // [12] because we take three 32bit stack slots anyway, and
         // gcc is too dumb to initialize with constant stores,
         // it copies initializer from rodata. Oh well.
+        // https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65410
 
         while (n_bytes--) {
                 unsigned masked_c = *(unsigned char *) block++;
@@ -419,7 +419,7 @@ print_ascii(size_t n_bytes, const char *block,
                 const char *unused_fmt_string UNUSED_PARAM)
 {
         // buf[N] pos:  01234 56789
-        char buf[12] = "   x\0 0xx\0";
+        char buf[12] = "   x\0 xxx\0";
 
         while (n_bytes--) {
                 const char *s;
@@ -455,11 +455,9 @@ print_ascii(size_t n_bytes, const char *block,
                 case '\v':
                         s = "  \\v";
                         break;
-                case '\x7f':
-                        s = " 177";
-                        break;
-                default: /* c is never larger than 040 */
-                        buf[7] = (c >> 3) + '0';
+                default:
+                        buf[6] = (c >> 6 & 3) + '0';
+                        buf[7] = (c >> 3 & 7) + '0';
                         buf[8] = (c & 7) + '0';
                         s = buf + 5;
                 }