From: Luiz Augusto von Dentz <luiz.von.dentz@xxxxxxxxx>
---
client/display.c | 41 +++++++++++++++++++++++++++++++++++++++++
client/display.h | 1 +
2 files changed, 42 insertions(+)
diff --git a/client/display.c b/client/display.c
index 0f212b6..619973c 100644
--- a/client/display.c
+++ b/client/display.c
@@ -62,3 +62,44 @@ void rl_printf(const char *fmt, ...)
free(saved_line);
}
}
+
+void rl_hexdump(const unsigned char *buf, size_t len)
+{
+ static const char hexdigits[] = "0123456789abcdef";
+ char str[68];
+ size_t i;
+
+ if (!len)
+ return;
+
+ str[0] = ' ';
+
+ for (i = 0; i < len; i++) {
+ str[((i % 16) * 3) + 1] = ' ';
+ str[((i % 16) * 3) + 2] = hexdigits[buf[i] >> 4];
+ str[((i % 16) * 3) + 3] = hexdigits[buf[i] & 0xf];
+ str[(i % 16) + 51] = isprint(buf[i]) ? buf[i] : '.';
+
+ if ((i + 1) % 16 == 0) {
+ str[49] = ' ';
+ str[50] = ' ';
+ str[67] = '\0';
+ rl_printf("%s\n", str);
+ str[0] = ' ';
+ }
+ }
+
+ if (i % 16 > 0) {
+ size_t j;
+ for (j = (i % 16); j < 16; j++) {
+ str[(j * 3) + 1] = ' ';
+ str[(j * 3) + 2] = ' ';
+ str[(j * 3) + 3] = ' ';
+ str[j + 51] = ' ';
+ }
+ str[49] = ' ';
+ str[50] = ' ';
+ str[67] = '\0';
+ rl_printf("%s\n", str);
+ }
+}
diff --git a/client/display.h b/client/display.h
index 91a0be9..88dbbd0 100644
--- a/client/display.h
+++ b/client/display.h
@@ -30,3 +30,4 @@
#define COLOR_BOLDWHITE "\x1B[1;37m"
void rl_printf(const char *fmt, ...) __attribute__((format(printf, 1, 2)));
+void rl_hexdump(const unsigned char *buf, size_t len);
--
2.1.0
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