hexdump
—
dump a block of bytes to standard out in hexadecimal form
#include <libutil.h>
void
hexdump
(void
*ptr, int length,
const char *hdr,
int flags);
The hexdump
() function prints an array of bytes to
standard out 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 display 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 beginning of each line.
HD_OMIT_HEX
- Do not print the hexadecimal values on each line.
HD_OMIT_CHARS
- Do not print the character values on each line.
The hexdump
() function first appeared in
FreeBSD 6.4.
This manual page was written by Scott Long.