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Diffstat (limited to 'lib/hexdump.c')
-rw-r--r--lib/hexdump.c12
1 files changed, 9 insertions, 3 deletions
diff --git a/lib/hexdump.c b/lib/hexdump.c
index a76ea707b69..a56e108164d 100644
--- a/lib/hexdump.c
+++ b/lib/hexdump.c
@@ -16,6 +16,8 @@
#include <linux/log2.h>
#include <asm/unaligned.h>
+#define MAX_LINE_LENGTH_BYTES 64
+
const char hex_asc[] = "0123456789abcdef";
const char hex_asc_upper[] = "0123456789ABCDEF";
@@ -30,8 +32,10 @@ int hex_dump_to_buffer(const void *buf, size_t len, int rowsize, int groupsize,
int ascii_column;
int ret;
- if (rowsize != 16 && rowsize != 32)
+ if (!rowsize)
rowsize = 16;
+ else
+ rowsize = min(rowsize, MAX_LINE_LENGTH_BYTES);
if (len > rowsize) /* limit to one line at a time */
len = rowsize;
@@ -126,10 +130,12 @@ void print_hex_dump(const char *prefix_str, int prefix_type, int rowsize,
{
const u8 *ptr = buf;
int i, linelen, remaining = len;
- char linebuf[32 * 3 + 2 + 32 + 1];
+ char linebuf[MAX_LINE_LENGTH_BYTES * 3 + 2 + MAX_LINE_LENGTH_BYTES + 1];
- if (rowsize != 16 && rowsize != 32)
+ if (!rowsize)
rowsize = 16;
+ else
+ rowsize = min(rowsize, MAX_LINE_LENGTH_BYTES);
for (i = 0; i < len; i += rowsize) {
linelen = min(remaining, rowsize);