hexdump(9)

NAME

#include <sys/systm.h>
void
hexdump(void *ptr, int length, const char *hdr, int flags);

The hexdump() function prints an array of bytes to the con
sole in hexadecimal form, along with the ASCII representation of the
bytes, if possible. By default, each line of output will start with an
offset count, followed by 16 hexadecimal values, followed by 16 ASCII
characters.
ptr Pointer to the array of bytes to print. It does not
need to be: NUL-terminated.
length Number of bytes to print.
hdr Pointer to a NUL-terminated character string that
will be: prepended to each line of output. A value of NULL; implies that
no header will be printed.
flags Flags for controlling the formatting of the output.: Bits 0-7 Integer value of the number of; bytes to dis
play on each line. A value of 0

implies that
the default value of 16 will be

used.
Bits 8-15 Character ASCII value to use as
the separator: for the hexadecimal output. A; value of 0
implies that the default value of; 32 (ASCII
space) will be used.
HD_OMIT_COUNT Do not print the offset column at
the begin: ning of each line.
HD_OMIT_HEX Do not print the hexadecimal val
ues on each: line.
HD_OMIT_CHARS Do not print the character values
on each: line.