NAME¶

nbdkit_debug_hexdump - display buffer in hexdump format

SYNOPSIS¶

 #include <nbdkit-plugin.h>
 void nbdkit_debug_hexdump (const void *buf, size_t len,
                            const char *prefix, uint64_t start);

DESCRIPTION¶

This function displays a buffer of binary data in canonical hexdump format, sending the output to the same place as nbdkit_debug(3). For example:

 char buf[33] = "12345678123456781234567812345678";
 nbdkit_debug_hexdump (buf, 32, "data: ", 0);

would produce output similar to this:

 data: 00000000: 31 32 33 34 35 36 37 38  31 32 33 34 35 36 37 38  |1234567812345678|
 data: 00000010: 31 32 33 34 35 36 37 38  31 32 33 34 35 36 37 38  |1234567812345678|

An optional "prefix" may be given which prefixes the string on each line of output. (This may be "NULL" or "" for no prefix).

An optional "start" may be given which changes the first offset displayed in the output.

LANGUAGE BINDINGS¶

(There are no language bindings of this function in the current version.)

HISTORY¶

"nbdkit_debug_hexdump" was added in nbdkit 1.46.

SEE ALSO¶

nbdkit(1), nbdkit_debug(3), nbdkit-plugin(3), nbdkit-filter(3), nbddump(1), hexdump(1).

AUTHORS¶

Richard W.M. Jones

COPYRIGHT¶

Copyright Red Hat

LICENSE¶

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

• Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
• Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
• Neither the name of Red Hat nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.