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authorRandy Dunlap <randy.dunlap@oracle.com>2007-11-28 16:21:46 -0800
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-11-29 09:24:53 -0800
commitd0eec99ce50baa5cc2ac02363cdb2a771ed4e1e2 (patch)
tree435b232daf15193124f2365882f5068b812e4449 /lib/hexdump.c
parent6454d1f9038f708d7deef6270ed4ba5bb6e55869 (diff)
downloadlinux-2.6.38-lt-ux500-d0eec99ce50baa5cc2ac02363cdb2a771ed4e1e2.tar.gz
hexdump: don't print bytes with bit 7 set
As Herbert Xu pointed out, bytes (chars) with bit 7 (0x80) set are true with isprint() but they may not be isascii() but be Unicode instead, so don't try to print them in hex dumps. Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Cc: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'lib/hexdump.c')
-rw-r--r--lib/hexdump.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/hexdump.c b/lib/hexdump.c
index bd5edaeaa80..343546550dc 100644
--- a/lib/hexdump.c
+++ b/lib/hexdump.c
@@ -106,7 +106,8 @@ void hex_dump_to_buffer(const void *buf, size_t len, int rowsize,
while (lx < (linebuflen - 1) && lx < (ascii_column - 1))
linebuf[lx++] = ' ';
for (j = 0; (j < rowsize) && (j < len) && (lx + 2) < linebuflen; j++)
- linebuf[lx++] = isprint(ptr[j]) ? ptr[j] : '.';
+ linebuf[lx++] = (isascii(ptr[j]) && isprint(ptr[j])) ? ptr[j]
+ : '.';
nil:
linebuf[lx++] = '\0';
}